CN111359921B

CN111359921B - Cleaning machine, cleaning equipment, information display method of cleaning equipment and storage medium

Info

Publication number: CN111359921B
Application number: CN201910955698.5A
Authority: CN
Inventors: 孙建; 周德化; 蒋洪彬; 张红
Original assignee: Tineco Intelligent Technology Co Ltd
Current assignee: Tineco Intelligent Technology Co Ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2022-04-22
Anticipated expiration: 2039-10-09
Also published as: CN114833100A; CN114798523A; CN114833100B; CN111359921A; CN114798523B

Abstract

The embodiment of the application provides a cleaning machine, cleaning equipment, an information display method of the cleaning equipment and a storage medium. In the embodiment of the application, the display is additionally arranged on the body of the cleaning machine to display the working state information of at least one component on the cleaning machine, so that the working state of the cleaning machine can be visually displayed. The user can know the operating condition of the part on the cleaning machine intuitively, which is beneficial to improving the user experience.

Description

Cleaning machine, cleaning equipment, information display method of cleaning equipment and storage medium

Technical Field

The present disclosure relates to a cleaning machine, and more particularly, to a cleaning machine, a cleaning apparatus, an information display method thereof, and a storage medium.

Background

At present, cleaning equipment is widely applied to daily life by people. People can use cleaning equipment with different functions to complete corresponding cleaning operation, such as washing clothes by using a washing machine, washing glasses by using a glasses washing machine, cleaning the ground by using a ground cleaning machine and the like.

However, the state of the existing cleaning equipment cannot be intuitively reflected, and the user experience is poor.

Disclosure of Invention

Aspects of the present application provide a cleaning machine, a cleaning device, an information display method thereof, and a storage medium, so as to visually display a working state of the cleaning device, thereby facilitating improvement of user experience.

The embodiment of the application provides a cleaning machine, includes: the cleaning device comprises a handle assembly, a machine body, a cleaning assembly, a processing system and a display arranged on the machine body; the display is electrically connected with the processing system and used for displaying the working state information of at least one component on the cleaning machine.

An embodiment of the present application further provides a cleaning apparatus, including: the display device comprises a machine body and a display arranged on the machine body; the display is electrically connected with the processing system and is used for displaying relevant state information of the cleaning equipment in the using process; the relevant state information of the cleaning device during use comprises at least one of the following:

(1) capacity information of the recycling bin;

(2) liquid level information of the solution barrel;

(3) cleaning degree information of the cleaning object by the cleaning component;

(4) power information of the power supply unit;

(5) self-cleaning information of the cleaning device;

(6) main motor power information;

(7) locked rotor information of the cleaning assembly;

(8) operational status information of the communication component.

An embodiment of the present application further provides an information display method, including:

acquiring working state information of at least one component on the cleaning equipment;

displaying the operating state information of the at least one component on a display;

the operating state information of the at least one component includes at least one of:

(1) capacity information of the recycling bin;

(2) liquid level information of the solution barrel;

(4) power information of the power supply unit;

(5) self-cleaning information of the cleaning device;

(6) main motor power information;

(7) locked rotor information of the cleaning assembly;

(8) operational status information of the communication component.

Embodiments of the present application also provide a computer-readable storage medium storing computer instructions, which when executed by one or more processors, cause the one or more processors to perform the steps of the above-described method.

In the embodiment of the application, the display is additionally arranged on the body of the cleaning machine to display the working state information of at least one component on the cleaning machine, so that the working state of the cleaning machine can be visually displayed. The user can know the operating condition of the part on the cleaning machine intuitively, which is beneficial to improving the user experience.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1a is a schematic structural diagram of a cleaning machine according to an embodiment of the present disclosure;

fig. 1b and fig. 1c are schematic structural diagrams of a display provided in an embodiment of the present application, respectively;

FIG. 2a is a schematic structural diagram of another cleaning machine according to an embodiment of the present disclosure;

fig. 2b is a schematic structural diagram of a cleanliness detection device according to an embodiment of the present application;

fig. 2 c-2 f are schematic diagrams illustrating an arrangement manner of a cleanliness detection device according to an embodiment of the present application;

fig. 2g is a schematic structural diagram of another cleanliness detection device provided in an embodiment of the present application;

2 h-2 k are schematic diagrams illustrating an arrangement of a first conductor set according to an embodiment of the present disclosure;

fig. 2l is a schematic structural diagram of a first detection circuit according to an embodiment of the present disclosure;

fig. 2m is a schematic diagram illustrating an operating principle of a first detection circuit according to an embodiment of the present disclosure;

fig. 2n is a schematic structural diagram of another cleaning machine provided in the embodiment of the present application;

FIG. 2o is a schematic diagram illustrating an operation of another detection circuit according to an embodiment of the present disclosure;

FIG. 2p is a schematic diagram illustrating the operation of a processing system according to an embodiment of the present disclosure;

fig. 2q is a schematic diagram of an operation of a pressure detection circuit according to an embodiment of the present disclosure;

FIG. 2r is a dimensional diagram of a pressure sensor according to an embodiment of the present disclosure;

fig. 2s is a graph illustrating a corresponding relationship between a resistance value and a pressure of a pressure sensor according to an embodiment of the present disclosure;

fig. 3a and 3b are schematic diagrams illustrating the working principle of the water pump according to the embodiment of the present application;

fig. 3c is a schematic diagram of a water pump driving circuit according to an embodiment of the present disclosure;

FIG. 4a is a schematic structural diagram of another cleaning machine according to an embodiment of the present disclosure;

fig. 4b is a schematic structural diagram of a liquid level detection circuit according to an embodiment of the present application;

4 c-4 g are schematic diagrams of the arrangement of the electrical conductor provided by the embodiment of the present application;

fig. 5a is a schematic structural diagram of another cleaning machine provided in the embodiment of the present application.

FIGS. 5b and 5c are schematic views illustrating an arrangement of a non-contact liquid level detection device according to an embodiment of the present application;

fig. 6a is a schematic view of an operation of a main motor according to an embodiment of the present application;

fig. 6b is a schematic structural diagram of a main motor current detection circuit according to an embodiment of the present disclosure;

fig. 6c is a schematic diagram of detecting a voltage of a power supply unit according to an embodiment of the present disclosure;

fig. 6d is a schematic flow chart of a liquid level status detection method according to an embodiment of the present disclosure;

fig. 7 is a schematic diagram illustrating an electric quantity display of a power supply unit according to an embodiment of the present disclosure;

fig. 8 is a flowchart illustrating an information display method according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

To the technical problem that current cleaning device's state can't embody directly perceived, this application embodiment provides a solution, and the basic thinking is: the cleaning machine is characterized in that a display is additionally arranged on the body of the cleaning machine to display the working state information of at least one component on the cleaning machine, so that the working state of the cleaning machine can be intuitively displayed. The user can know the operating condition of the part on the cleaning machine intuitively, which is beneficial to improving the user experience.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

It should be noted that: like reference numerals refer to like objects in the following figures and embodiments, and thus, once an object is defined in one figure or embodiment, further discussion thereof is not required in subsequent figures and embodiments.

Fig. 1a is a schematic structural diagram of a cleaning machine according to an embodiment of the present application. As shown in fig. 1a, the washing machine includes: a handle assembly 11, a body 12, a cleaning assembly 13, a processing system 14, and a display 15 disposed on the body. The implementation and structure of the washing machine shown in fig. 1a are exemplary and not limiting.

It should be noted that: in the embodiment of the present application, for convenience of description and distinction, a part to which the direction of the center of gravity of each component points when the cleaning machine is operated upright (the operation state shown in fig. 1 a) is defined as the lower end or the bottom of the component; and the portion where it points in the opposite direction is defined as the upper end or top of the part. Further, when the cleaning machine works upright, the part pointed by the advancing direction of the cleaning machine in each part is defined as the front of the component; correspondingly, the surface of each component opposite to the advancing direction of the cleaning machine is defined as the back surface of the component; and thus the left and right sides of the components.

In the present embodiment, the handle assembly 11 may be disposed at the upper end of the body 12, or may be disposed at a side surface (back surface, left surface, or right surface) of the body 12. Alternatively, if the handle assembly 11 is disposed at the upper end of the body 12, the axial direction (the direction of the center of gravity) thereof is parallel to the axial direction of the body 12.

Alternatively, as shown in fig. 1a, the handle assembly 11 may comprise: a handle 11a and an extension rod 11 b. Further, the length of the extension rod 11b may be fixed or adjustable. Alternatively, if the length of the extension rod 11b is adjustable, the structure thereof is a telescopic structure. Accordingly, the user can flexibly adjust the length of the extension rod 11b according to his or her own needs.

In this embodiment, the processing system 14 may be disposed within the fuselage or may be disposed on a surface of the fuselage. The implementation and the installation position of the processing system 14 shown in fig. 1a are exemplary and not limiting. In this embodiment, the treatment system 14 is a control system of the washing machine, which controls the use and operation of other components connected thereto.

In this embodiment, the display 15 is electrically connected to the processing system 14 for displaying information on the operational status of at least one component of the washing machine. In the embodiment of the present application, the specific shape of the display 15 is not limited. Alternatively, the display 15 may be in a regular shape such as a circle, a square, an ellipse, a trapezoid, or a polygon, or may be in any irregular shape, which is not listed here.

Alternatively, the display 15 may be provided on the top of the body, and may be provided on the front, left, or right of the body. Alternatively, if the display 15 is disposed on top of the body 12, the plane of the display 15 may be perpendicular or at an angle to the axis of the body 12. The body comprises a main motor and a liquid storage device, optionally, a display 15 is arranged above the liquid storage device, i.e. the display 15 is arranged above the solution bucket or the recovery bucket, preferably, above the solution bucket. Further, to meet the viewing angle of the user, a display 15 may be provided in front of the handle assembly 11.

Alternatively, the display 15 may be fixedly disposed on the surface of the body 11, or may be telescopically disposed on the body 11. For example, the display 15 may be telescopically disposed at the top, front, left or right of the body 11.

Optionally, the body 11 includes a cavity (not shown in FIG. 1 a) for receiving the display 15. Further, a connecting rod is disposed between the back of the display 15 and the bottom of the cavity, and the connecting rod is of a telescopic structure.

Accordingly, the tie bar is electrically connected to the processing system 14. The processing system 14 is capable of controlling the extension of the connecting rod during the start-up of the washing machine to drive the display 15 to extend to the surface of the body 11. Alternatively, the processing system 14 may control the connecting rod to be shortened during the shutdown process of the cleaning machine, so as to drive the display 15 to be recovered into the cavity.

Optionally, a protective cover can be arranged on the top of the cavity. Wherein, when the display 15 extends out of the surface of the body 11, the protective cover is in an open state; when the display 15 is retracted into the body 11, the protective cover is in a closed state.

Further, the protective cover may be a mechanical opening and closing structure, that is, the user may manually open the protective cover so that the display 15 may extend to the surface of the body 11. Accordingly, the user may also manually close the protective cover when the display 15 is retracted into the cavity.

Alternatively, the protective cover can also be opened and closed in an electric mode. Accordingly, the washing machine may further include: and the transmission structure is electrically connected with the processing system 14 and is used for driving the protective cover to open and close.

Optionally, the protective cover may comprise: n foldable partitions; wherein N is not less than 2 and is an integer. The N foldable partition boards are hinged with the inner wall or the outer wall of the cavity through rotating shafts. Correspondingly, the transmission mechanism can be connected with the N foldable partition boards. The transmission mechanism is used for driving the N foldable partition boards to unfold or fold.

In this embodiment, a display is additionally provided on the body of the washing machine to display the operating state information of at least one component on the washing machine, so that the operating state of the washing machine can be visually displayed. The user can know the operating condition of the part on the cleaning machine intuitively, which is beneficial to improving the user experience.

Further, the display 15 may include at least one display area for displaying operating status information of the various components. Optionally, the operating state information of the at least one component includes at least one of: (1) liquid level information of the liquid storage device; (2) cleaning degree information of the cleaning object by the cleaning component; (3) power information of the power supply unit; (4) self-cleaning information of the cleaning machine; (5) main motor power information; (6) locked rotor information of the cleaning assembly; (7) operational status information of the communication component. The liquid storage device can be a solution barrel of the cleaning machine and can also be a recovery barrel of the cleaning machine. The following is an exemplary description of the implementation and structure of the display.

Fig. 1b and fig. 1c are schematic structural diagrams of a display provided in an embodiment of the present application. As shown in fig. 1b and 1c, the display 15 includes at least one display area for displaying operation state information of the various components. Further, as shown in fig. 1b, the at least one display area includes: a first display region 15a formed of a plurality of first display tubes. The first display tube may be an LED, an OLED, a thin film LED, or the like, but is not limited thereto.

Here, a plurality of first display tubes may be distributed in any form in the display 15, thereby forming the first display region 15 a. The shape of the first display region 15a is related to the distribution of the plurality of first display tubes. For example, the plurality of first display tubes may be distributed in an array form. The plurality of first display tubes may be distributed in the display 15 in a rectangular, circular, trapezoidal, heart-shaped manner, and the like, and accordingly, the shape of the first display region 15a may be a rectangular, circular, trapezoidal, heart-shaped, and the like, but is not limited thereto. Further, as shown in fig. 1b and 1c, a plurality of first display tubes may be distributed along the edge of the display 15, thereby forming a circular or arc-shaped first display region 15 a. Wherein the shape of the first display region 15a formed by the plurality of first display tubes has a certain relationship with the shape of the display 15. Fig. 1b and 1c illustrate the display 15 as a circle, and do not limit the shape thereof.

In the present embodiment, the first display area 15a may display information on the degree of cleaning of the cleaning object by the cleaning assembly 13 under the control of the processing system 14.

Alternatively, the plurality of first display tubes are different colors, and the plurality of first display tubes may display a combination of different colors, brightnesses, and shapes (or patterns) under the control of processing system 14. The shape shown by the plurality of first display tubes may here also be understood as a pattern. Wherein the combination of different colors, brightness and shapes characterize different degrees of cleaning of the cleaning object by the cleaning assembly 13. In the embodiments of the present application, the combination of different colors, luminances and shapes includes: different colors but the same shape; the colors are the same, but the shapes are different; the colors are the same, but the brightness is different; the shapes are the same, but the brightness is different; or different colors, brightness and shapes. Wherein, the shape displayed by the plurality of first display tubes mainly depends on the number and distribution positions of the first display tubes in the lighting state. Of course, in addition to representing the cleaning degree of the cleaning object by the cleaning assembly 13 through the combination of the color, brightness and shape displayed by the plurality of first display tubes, the cleaning degree of the cleaning object by the cleaning assembly can also be represented by simply adopting the number of the display tubes in the lighting state. In an alternative embodiment, the cleaning degree of the cleaning object by the cleaning assembly is represented by the number of the display tubes in the lighting state. For example, the larger the number of display tubes in the lit state among the plurality of first display tubes, the lower the cleaning degree of the cleaning object by the cleaning assembly 13, that is, the larger the number of display tubes in the lit state among the plurality of first display tubes, the dirtier the cleaning object. In another alternative embodiment, the cleaning degree of the cleaning object by the cleaning assembly 13 is characterized by a combination of colors and shapes displayed by the plurality of first display tubes, and the characterizing effect of the colors on the cleaning degree is greater than the characterizing effect of the shapes on the cleaning degree in the combination of the colors and the shapes. For example, assuming that the plurality of first display tubes include red, yellow and green, several shapes "I", "L" and "K" may be combined, and the cleanliness degrees of the red, yellow and green representations are sequentially increased, and under the same color, the more complicated the shape combination, the lower the cleanliness degree, and the dirtier the cleaning object. Comparing the red "I" shape with the yellow "I" shape, the red "I" shape indicates that the degree of cleaning is lower and the cleaning object is dirtier. Comparing the red "K" shape with the red "I" shape, the red "K" shape indicates that the degree of cleaning is lower and the cleaning object is dirtier.

Alternatively, the first display tubes may be the same color, and under the control of the processing system 14, the first display tubes may display different shapes, different brightnesses, or different numbers of display tubes in a lighted state. The shape, brightness or number of the display tubes in the lighting state displayed by the plurality of first display tubes can represent the cleaning degree of the cleaning object by the cleaning assembly. Optionally, the plurality of first display tubes display different brightnesses to characterize the difference in cleanliness. By taking blue as an example, a plurality of blue display tubes are displayed in a full bright mode, and the higher the brightness is, the higher the represented cleanliness is. Alternatively, the cleanliness can be represented by a combination of shape and brightness, taking blue as an example, a part of the blue display tubes are fully bright, the brightness of a part of the blue display tubes is decreased according to a predetermined rule, and the rest part of the blue display tubes are in an unlit state, and this scene can also represent the cleanliness. Optionally, the shape of the plurality of first display tubes is mainly determined by the number and distribution positions of the first display tubes in the lighting state. In an alternative embodiment, the cleaning degree of the cleaning object by the cleaning assembly is represented by the number of the display tubes in the lighting state. For example, the larger the number of display tubes in the lit state in the plurality of first display tubes, the lower the cleaning degree of the cleaning object by the cleaning assembly 13, that is, the larger the number of display tubes in the lit state in the plurality of first display tubes, the dirtier the cleaning object, but not limited thereto. In another alternative embodiment, the cleaning degree of the cleaning object by the cleaning assembly may be displayed in a shape that the plurality of first display tubes can display. For example, the more complex the shape that the plurality of first display tubes can display means that the cleaning assembly 13 cleans the cleaning object to a lower degree, i.e., the more complex the shape that the plurality of first display tubes can display, the more dirty the cleaning object, but is not limited thereto. It is assumed that the plurality of first display tubes may display several shapes of "I", "L", and "K", where the shape "I" indicates that the cleaning object is cleanest and the shape "K" indicates that the cleaning object is dirtiest.

Optionally, the first plurality of display tubes differ in brightness under control of processing system 14. The brightness and the number of the first display tubes are positively correlated with the cleaning degree of the cleaning object by the cleaning assembly; that is, the higher the cleanliness, the larger the number of the lighted first display tubes, and the higher the brightness of each first display tube. When the cleaning degree is in an intermediate state, the first display tubes partially display blue, partially display red and gradually change from blue to red, the brightness of the blue display tubes is sequentially reduced, the brightness of the red display tubes is sequentially increased, and the blue display tubes and the red display tubes are crossed and overlapped, so that the gradual change effect from blue to red is presented. Optionally, a light guide plate is disposed on the display, the light guide plate has the same shape as the display, the light guide plate is fixed on the outer surface of the display by gluing or fastening, and the light guide plate can enhance the optical display effect on one hand, including but not limited to gradual display; on the other hand, the display screen can be protected, and the protective cover is used.

The following is an exemplary description of the plurality of first display tubes displaying a combination of color, brightness, and shape adapted to the cleaning degree of the cleaning object in connection with several alternative embodiments, with the display 15 being circular.

Embodiment a 1: the cleaning degree of the cleaning object can be divided into Y grades, wherein Y is not less than 2 and is an integer. Wherein the plurality of first display tubes have two colors of red and blue, optionally, the red display tubes and the blue display tubes form a circular ring. Correspondingly, when the cleaning degree is the lowest grade 0, all the red display tubes are in a lighting state; when the cleaning degree reaches the highest grade Y, the blue display tubes are all in a lighting state; when the cleaning degree of the cleaning object is between 0 and Y grades, the adjacent partial red display tubes and partial blue display tubes are in cross overlapping lighting, and the brightness gradually increases or decreases to present a gradual change effect. At this time, one end of the first display tube displays red, the other end of the first display tube displays blue, and the middle of the first display tube has a gradual change effect from red to blue. Or when the cleaning degree of the cleaning object is between 0 and Y grade, the non-adjacent red display tube and the blue display tube are in a lighting state, and the gradual change effect is not presented.

Embodiment a 2: the cleaning degree of the cleaning object can be divided into Y grades, wherein Y is not less than 2 and is an integer. Wherein the plurality of first display tubes have one color, assumed to be blue. Optionally, the blue display tube forms a circular ring. Correspondingly, when the cleaning degree is the lowest grade 0, the blue display tube is in a closed state; when the cleaning degree reaches the highest grade Y, the blue display tubes are all in a lighting state to form a blue circular ring; when the cleaning degree of the cleaning object is between 0-Y grade, the blue display tube part is in a lighting state, and the brightness presents a gradual effect of gradually increasing or decreasing to form a blue gradual change arc.

Embodiment A3 is that the cleaning degree of the cleaning object can be classified into Y class, wherein Y is an integer and is not less than 2. Wherein, the plurality of first display tubes have red and blue two colors. Optionally, the red display tube and the blue display tube form a circular ring. Correspondingly, when the cleaning degree is the lowest grade 0, all the red display tubes are in a lighting state to form a red lighting arc; when the cleaning degree reaches the highest grade Y, the blue display tubes are all in a lighting state to form a blue lighting arc; when the cleaning degree of the cleaning object is between 0-Y grade, the blue display tube and the red display tube are all in a lighting state, but the brightness of the blue display tube is different from that of the red display tube, and the brightness shows a trend of gradually increasing or decreasing so as to form a circular ring with a red-blue gradual change effect.

Embodiment a 4: the cleaning degree of the cleaning object may be classified into 100 grades. Wherein, the plurality of first display tubes have red and blue two colors. Optionally, the red display tube and the blue display tube respectively form a row of continuous circular arcs, the two rows of circular arcs are identical in shape and are adjacent to each other, and the circular arcs are non-closed circular rings. Correspondingly, when the cleanliness is 0, the red display tubes are all in a lighting state, and the blue display tubes are not lighted to form a red arc; when the cleanness is 100, the blue display tubes are all in a lighting state, and the red display tubes are not lighted to form a blue circular arc. When the cleanliness is 50, the 1 st to 25 th display tubes in the anticlockwise direction of the blue display tubes display blue with 100% brightness, and the 26 th to 75 th display tubes display blue with gradually reduced brightness: for example, the 26 th display has a luminance of 98%, the 27 th display has a luminance of 96%, the … … th display has a luminance of 2%, and the 75 th display has a luminance of 0; the 76 th to 100 th display tubes display blue with a brightness of 0, i.e. the display tubes are in a non-lit state. The red display tube displays red with 100% brightness from the 1 st to the 25 th display tubes in the clockwise direction, and the red brightness displayed by the 26 th to the 75 th display tubes is decreased in sequence: for example, the 26 th display has a luminance of 98%, the 27 th display has a luminance of 96%, the … … th display has a luminance of 2%, and the 75 th display has a luminance of 0; the red brightness displayed by the 76 th to 100 th display tubes is 0, that is, the display tubes are in a non-lighting state. The first display tube forms a gradual change arc effect showing cleanliness through the combination of shape, color, brightness and quantity: the first part is full blue display, the second part is display of blue to red gradually change, and the third part is red display. The above is only an exemplary illustration, and the shape of the first display tube, the color composition of the red and blue, the number of lights on, and the percentage of brightness can be adjusted according to the actual situation, and are not limited herein.

It is to be noted that the shape, color, display effect adapted to the degree of cleaning of the cleaning object, and the shift of the degree of cleaning formed by the first display tube described in the above-described embodiment a1-a4 are exemplary illustrations. In practical application, the display of the cleaning degree can be flexibly set, and is not listed.

In the embodiment of the present application, the degree of cleaning of the cleaning object by the cleaning assembly 13 may be detected in various ways. The following is an exemplary description in connection with several embodiments.

Fig. 2a is a schematic structural diagram of another cleaning machine according to an embodiment of the present disclosure. As shown in fig. 2a, the washing machine includes: a suction passage 16 and a recovery tub 17 connected to the cleaning assembly 13 in sequence; the dirty liquid on the cleaning object is sucked by the suction nozzle 13a of the cleaning brush 13 and sent into the recovery tub 17 through the suction passage 16. As shown by the dotted line in fig. 2a, the dirty liquid flows from the suction nozzle 13a of the cleaning unit 13 into the collection tub 17 through the suction passage 16, and a dirty liquid flow path is formed.

Further, as shown in fig. 2a, the washing machine further includes: a cleanliness detection device 18. The cleanliness detection device 18 is partially or entirely provided in a flow path of the contaminated liquid. The cleanliness detection device 18 is partially provided in the flow path of the dirty liquid, and includes: some components of the cleanliness detecting device 18 are disposed in the flow path of the dirty liquid, and the remaining components are disposed in other parts of the cleaning machine than the flow path of the dirty liquid.

Alternatively, the cleanliness detection device 18 may be provided in the cavity of the cleaning assembly 13, the suction nozzle 13a of the cleaning assembly 13, the suction passage 16, or the recovery bucket 17, or may be provided in a plurality of these locations. In the embodiments of the present application, a plurality means 2 or more than 2. For example, the cleanliness detecting means 18 may be provided in the suction nozzle 13a and the suction passage 16 of the cleaning assembly 13, or at least one cleanliness detecting means 18 may be provided in the cavity of the cleaning assembly 13 and the recovery bucket 17, etc., but not limited thereto. Fig. 2a is merely an example in which the cleanliness detection device 18 is provided in the suction passage 16, and the position thereof is not limited.

Alternatively, the number of cleanliness detection devices 18 provided per site may be 1 or more.

In the present embodiment, cleanliness detection device 18 is used to detect the physical property values of the dirty liquid and provide the physical property values of the dirty liquid to processing system 14. Accordingly, the processing system 14 may determine the degree of cleaning of the cleaning object based on the physical property value of the dirty liquid.

In the present embodiment, the washing machine is provided with a detection device capable of detecting a physical property value of the dirty liquid on the cleaning target, that is, a part or all of the detection device is provided on the flow path of the dirty liquid. Therefore, the processing system can determine the cleaning degree of the cleaning object according to the physical attribute value of the dirty liquid detected by the detection device, the cleaning degree of the cleaning object is automatically detected, whether the cleaning object is clean or not is not required to be manually determined, and therefore user experience is improved.

In the present embodiment, the cleanliness detection assembly 18 operates on a different principle, and the physical properties of the contaminated liquid that can be detected differ. For example, some optical detection devices may detect optical property values of a dirty liquid; for another example, some electrical detection devices may detect electrical property values of the contaminated liquid. In embodiments of the present application, the physical properties of the turbid liquid comprise its optical and/or electrical properties. Wherein, the optical property of the dirty liquid can be the color, turbidity or transparency of the dirty liquid; the electrical property of the dirty liquid may be the resistance, resistivity, current or voltage of the dirty liquid, etc.

The cleanliness detection assembly 18 provided in the embodiment of the present application is exemplarily described below by taking an example in which the cleanliness detection assembly 18 detects an optical property value and an electrical property value of a dirty liquid, respectively.

Fig. 2b is a schematic structural diagram of a cleanliness detection device according to an embodiment of the present application. As shown in fig. 2b, cleanliness detection assembly 18 includes: a light source 18a and a light detector 18 b. The light signal from the light source 18a may pass through the contaminated liquid and reach the light detector 18 b. Further, the photodetector 18b converts the arriving optical signal into an electrical signal and outputs to the processing system 14. The electrical signal output by the photodetector 18b may reflect the optical properties of the contaminated liquid. For convenience of description and distinction, in the present embodiment, the electric signal output from the photodetector 18b is defined as a first electric signal. Accordingly, the processing system 14 may calculate an optical property value of the dirty liquid from the first electrical signal and determine a degree of cleaning of the cleaning object from the optical property value of the dirty liquid.

Alternatively, the processing system 14 may match the optical property value of the dirty liquid in a known correspondence relationship between the optical property value and the cleaning level, and determine the cleaning level corresponding to the optical property value of the dirty liquid as the cleaning level of the cleaning object. Wherein, the cleaning grade of the cleaning object can reflect the cleaning degree.

Alternatively, as shown in FIG. 2b, the light source 18a and the light detector 18b may be disposed opposite each other. The arrangement of the light source 18a and the light detector 18b opposite to each other means that: the light receiving surface of the photodetector 18b faces the light source 18a through the dirty liquid, that is, the light emitted from the light source 18a is transmitted through the dirty liquid to reach the photodetector 18 b. Thus, the light signal from the light source 18a can be transmitted through the contaminated liquid to the light detector 18 b.

Alternatively, as shown in FIG. 2c, the light source 18a and the light detector 18b may be disposed on the same side. The arrangement of the light source 18a and the light detector 18b opposite to each other means that: the light receiving surface of the photodetector 18b is located on the same side of the dirty liquid as the light source 18a, i.e., light emitted by the light source 18a is reflected by the dirty liquid to reach the photodetector 18 b. Thus, the light signal from the light source 18a can be reflected by the contaminated liquid and reach the light detector 18 b.

For the aspiration channel 16, the light source 18a and the light detector 18b are oppositely disposed, it being understood that the light source 18a and the light detector 18b are disposed at the front and back of the aspiration channel, respectively; or to the left and right of the suction channel, respectively. The light source 18a and the light detector 18b are disposed on the same side, it being understood that the light source 18a and the light detector 18b are disposed on the front, back, left, or right side of the aspiration channel.

For the recycling bin 17, a light source 18a and a light detector 18b may be disposed at the front and back of the recycling bin 17, respectively (shown in fig. 2 d); alternatively, the light source 18a and the light detector 18b may be disposed on the left and right sides of the recycling bin 17, respectively (as shown in fig. 2 e). The light source 18a and the light detector 18b are disposed on the same side, it is understood that the light source 18a and the light detector 18b are disposed on the front, back, left side or right side of the recycling bin 17, and fig. 2f illustrates the case where the light source 18a and the light detector 18b are disposed on the left side of the recycling bin 17. Preferably, the light source 18a and the light detector 18b are both disposed at the bottom of the recovery tank 17, which helps to improve the detection rate of the optical property value of the dirty liquid. The structure of the recycling bin 17 is only for illustration and is not limited thereto.

It is worth noting that in the present embodiment, the light source 18a generates light having a wavelength within the range of wavelengths detectable by the light detector 18 b. The light source 18a may be a light source with various light wavelengths, and correspondingly, the light detector 18b may be a light receiver capable of receiving the light wavelength of the light emitted from the light source 18 a. Alternatively, if the light source 18a is an infrared light source, the light detector 18b may be an infrared receiving tube; if the light source 18a is a laser light source, the light detector 18b may be a laser diode; if the light source 18a is an LED light source, the light detector 18b may be a color sensor or the like; but is not limited thereto. The operating principle of cleanliness detection assembly 18 will be described below by taking light source 18a as an LED light source and light detector 18b as a color sensor. When light from the LED light source reaches the color sensor via the dirty liquid, the color sensor can convert the received light signal into RGB voltages and output the RGB voltages to the processing system 14. Accordingly, the processing system 14 may calculate the color of the dirty liquid from the RGB voltages; and determines the degree of cleaning of the cleaning object based on the color of the dirty liquid.

Optionally, a correspondence between the color of the liquid and the level of cleanliness may be preset in the processing system 14. Accordingly, the processing system 14 may match the color of the dirty liquid with the correspondence between the liquid color and the cleaning level, and set the cleaning level corresponding to the color of the dirty liquid as the cleaning level of the cleaning object. Wherein the cleaning grade of the cleaning object may reflect a cleaning degree of the cleaning object.

In practical applications, it is considered that the flow path of the contaminated liquid may have a certain degree of contamination, and the contamination may affect the first electrical signal received by the photodetector to a certain degree, so that the subsequent determination of the cleaning degree of the cleaning object may have a certain error. In the embodiment of the present invention, in order to reduce the influence of the contamination existing in the flow path of the contaminated liquid on the detection result, the brightness of the light source 18a may be adjusted until the reference electric signal output from the photodetector 18b satisfies the setting requirement before the cleaning machine performs the cleaning task on the cleaning target. The reference electrical signal output by the photodetector 18b meeting the setting requirement is: the difference between the intensity of the reference electric signal output by the photodetector 18b and the preset reference intensity is within a preset difference range. For example, if the reference electrical signal output by the photodetector 18b is a voltage signal, the voltage signal output by the photodetector 18b satisfying the setting requirement means: the voltage difference between the voltage value output from the photodetector 18b and the preset reference voltage value is within the preset voltage difference range.

Further, if the reference electrical signal output by the photodetector 18b does not satisfy the setting requirement when the brightness of the light source is maximized, the processing system 14 may output first prompt information to prompt the user to clean the flow path of the dirty liquid, that is, to prompt the user to clean the portion of the flow path of the dirty liquid.

In the embodiment of the present application, the manner in which the processing system 14 outputs the first prompt information is not limited. In some embodiments, the washer includes an audio component, and the processing system 14 may play the first prompt via the audio component. In other embodiments, processing system 14 may also present the first reminder information via display 15. In still other embodiments, the cleaning machine includes a buzzer, and the buzzer is electrically connected to the processing system 14. Accordingly, if the brightness of the light source is adjusted to the maximum, the reference electrical signal output by the photodetector 18b still does not meet the set requirement, and the processing system 14 may further control the buzzer to sound, so as to prompt the user to clean the flow path of the dirty liquid. In still other embodiments, the washer further includes an indicator light, and the indicator light is electrically connected to the treatment system 14. Accordingly, if the brightness of the light source is adjusted to the maximum, the reference electrical signal output by the light detector 18b still does not meet the set requirement, and the processing system 14 may further control a cleanliness indicator lamp (not shown in fig. 1b and 1 c) to send out a prompt signal to prompt the user to clean the flow path of the dirty liquid. Optionally, processing system 14 may also control a cleanliness indicator light to flash or display a set color, and so forth, but is not limited thereto.

Alternatively, in the embodiment of the present application, the cleaning machine may also provide a self-cleaning function. The self-cleaning function refers to that the cleaning machine automatically cleans a circulation path of the dirty liquid. Accordingly, as shown in fig. 1b and 1c, the at least one display area further includes: and a second display area 15 b. Alternatively, the second display region may be formed by the first indicator light. Wherein the first indicator light is in an illuminated state during use of the washer with the self-cleaning function.

Alternatively, the processing system 14 may also activate the self-cleaning function of the washing machine and control the first indicator lamp to be turned on in a case where the degree of cleaning of the circulation path of the dirty liquid detected by the cleanliness detecting means 18 does not satisfy the set requirement. The reason why the degree of cleanliness of the flow path of the contaminated liquid does not satisfy the set requirement is that the reference electric signal output from the photodetector 18b does not satisfy the set requirement when the luminance of the light source is maximized.

Alternatively, the processing system 14 may start the self-cleaning function of the washing machine and control the first indicator light to be turned on when the time for the washing machine to perform the cleaning task on the cleaning object reaches a preset time length. Alternatively, the processing system 14 may also remind the user of self-cleaning when the time for the cleaning machine to perform the cleaning task on the cleaning object reaches a preset time period, and if the user triggers the self-cleaning button, the self-cleaning function of the cleaning machine is started, and the first indicator light is controlled to be turned on.

Alternatively, the user may also trigger a corresponding self-cleaning function control switch to turn on the self-cleaning function. Accordingly, the processing system 14 detects that the self-cleaning control switch is turned on, starts the self-cleaning function of the washing machine, and controls the first indicator light to be turned on.

In addition to the optical detection device, the cleanliness detection device provided in the embodiments of the present application may also be implemented as an electrical detection device, which is exemplarily described below with reference to fig. 2 g.

As shown in fig. 2g, the cleanliness detection device 18 includes: a first conductor set 181 and a first detection circuit 182. The first conductor group 181 is provided on a flow path of the contaminated liquid. The first detection circuit 182 is electrically connected between the first conductor set 181 and the processing system 14. Where a conductor set refers to a group of conductors, for ease of description and distinction, a group of conductors is defined as a conductor set in some places in the embodiments of the present application. The electric conductor is of an integrally formed structure, has good electric conduction property in liquid, does not react with the liquid chemically, has certain hardness, and can be realized by metal materials or nonmetal materials. In some preferred embodiments, the electrical conductor may preferably be a stainless steel wire.

Further, the first detection circuit 182 may generate a second electrical signal when the first conductor set 181 is in contact with the dirty liquid and output the second electrical signal to the processing system 14. Wherein the second electrical signal is reflective of an electrical property of the turbid liquid. The first conductor set 181 includes at least two conductors that are not in contact with each other. The number of conductors is only illustrated as 2 in fig. 2 g-2 l.

Further, a part of the conductors in the first conductor group 181 is electrically connected to the positive electrode of the power supply unit of the cleaning machine to form a positive electrode conductor; the rest part is grounded to form a grounding conductor. In this way, when the positive electrode conductor and the ground conductor come into contact with the contaminated liquid, the positive electrode conductor and the ground conductor form a passage. Accordingly, the first sensing circuit 182 generates a second electrical signal when a path is formed between the positive conductor and the ground conductor, and outputs the second electrical signal to the processing system 14.

In embodiments of the present application, among other things, the power supply unit is configured to provide power to various components of the washer or cleaning device. The power supply unit may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device in which the power supply unit is located. Optionally, the power supply unit may further include: a battery pack. Wherein the battery pack can be a storage battery or a rechargeable battery.

In the present embodiment, the conductive body may be a conductive probe, a conductive patch, a conductive contact, or the like, but is not limited thereto. The conductor can be made of stainless steel. The conductors in the first conductor group 181 may be disposed opposite to each other or on the same side. As shown in fig. 2g and 2h, if the first conductor set 181 is disposed in the suction channel, each conductor in the first conductor set 181 may be disposed on the inner sidewall of the suction channel. If the first conductor group 181 is disposed in the recycling bin, each conductor in the first conductor group 181 may be disposed on an inner wall of the recycling bin 17. Alternatively, as shown in fig. 2i, the first conductor set 181 may be disposed on the inner sidewall of the recycling bin 17. Preferably, the first conductor group 181 is disposed at the bottom of the inner sidewall. Alternatively, as shown in fig. 2j, the first conductor group 181 is disposed at the bottom of the recycling bin 17. Further, if the conductive body is a conductive probe, as shown in fig. 2k, it can also be suspended in the recycling bin 17. Preferably, the conductive probe extends into the bottom of the recovery tank 17 so that once dirty liquid is drawn into the recovery tank 17, the conductive probe can detect the electrical property value of the dirty liquid.

Further, if the conductor is a conductive probe, it can be a rigid conductive probe, so that the direct contact between the positive conductor and the negative conductor can be prevented to cause short circuit.

The operation principle and structure of the first detection circuit 182 will be described below by taking the first conductor group 181 including the conductors a and B not in contact with each other as an example, and combining the circuit principle diagrams shown in fig. 2l and fig. 2 m.

As shown in fig. 2l, the first detection circuit 182 includes: the voltage detection circuit 182 a. The power supply terminal P of the voltage detection circuit 182a is electrically connected to the conductor a. Wherein, the power supply terminal P is also electrically connected with the anode of the power supply unit. Further, the ground terminal and the output terminal Q of the voltage detection circuit 182a are electrically connected to the conductor B, respectively, and the output terminal Q of the voltage detection circuit 182a is electrically connected to the processing system 14. The ground terminal of the voltage detection circuit 182a is connected to ground.

Optionally, as shown in fig. 2m, the voltage detection circuit 182a further includes: the reference sampling resistor R3. Both ends of the reference sampling resistor R3 are electrically connected to the conductor B and ground. Alternatively, the connection point of the conductor B and the reference sampling resistor R3 may be used as the output terminal Q of the voltage detection circuit 182 a. When the conductors a and B contact the dirty liquid, the conductors a and B form a path, and the processing system 14 detects the voltage across the reference sampling resistor R3, and obtains the voltage of the path formed by the conductors a and B, that is, the voltage of the dirty liquid (the second electrical signal). Since the resistance value of the reference sampling resistor R3 is known, the current of the passage formed by the conductor a and the conductor B can be obtained, and the resistance value of the contaminated liquid can be obtained.

Further, in order to reduce the risk of the processing system 14 due to the excessive voltage value output from the voltage detection circuit 182a caused by the change in the resistance value of the contaminated liquid, a buffer circuit 182b may be connected to the output terminal of the voltage detection circuit 182a, as shown in fig. 2 m. The input terminal of the buffer circuit 182b is electrically connected to the output terminal Q of the voltage detection circuit 182a, and the output terminal (DW-R) of the buffer circuit 182b is electrically connected to the processing system 14.

Alternatively, as shown in fig. 2m, the buffer circuit 182b may include: an operational amplifier U1 and an RC filter circuit. The RC filter is formed by connecting a resistor R1 and a capacitor C1 in series. Further, the non-inverting input terminal 1 of the operational amplifier U1 is electrically connected to the output terminal Q of the voltage detection circuit 182a, and the inverting input terminal 3 thereof is electrically connected to the output terminal 4 thereof. Further, the RC filter circuit is connected in parallel between the output terminal 4 of the transport amplifier and the ground, and the ungrounded end of the RC filter circuit is electrically connected to the processing system 14. I.e., the series connection of resistor R1 and capacitor C1 in the RC filter circuit, is electrically connected to the processing system 14.

Further, considering that the clean liquid sprayed by the cleaning machine may have certain impurities, if the degree of cleaning of the cleaning object is determined directly using the electric signal output from the first detection circuit 182, there may be a certain error. Therefore, in practical application, the reference electric signal of the clean liquid sprayed by the cleaning machine can be measured in advance. Wherein the clean liquid can be clear water, cleaning liquid or disinfectant, etc. For convenience of description and distinction, in the present embodiment, a detection circuit that measures a reference electric signal of a clean liquid sprayed from the washer is defined as a reference detection circuit, and an overall resistance value of the reference detection circuit is defined as a reference resistance value. The overall resistance value of the reference detection circuit is the overall resistance value of the reference detection circuit, and the resistance value of the clean liquid is not included. The reference detection circuit may be the first detection circuit, but may also be other detection circuits, such as the second detection circuit in the embodiments described below.

Further, in order to simplify the calculation of the subsequent processing system 14, the overall resistance value of the first detection circuit 182 may be set as a reference resistance value when measuring the electrical property value of the contaminated liquid. Based on this, the variable resistance circuit 182c may be provided in the first detection circuit 182. As shown in fig. 2m, the first detection circuit 182a further includes: the variable resistor circuit 182 c. Further, the first terminal E1 of the variable resistor circuit 182c is electrically connected to the reference sampling resistor R3 in the voltage detection circuit, the second terminal E2 thereof is electrically connected to the processing system 14, and the third terminal E3 thereof is grounded.

Accordingly, the processing system 14 can adjust the resistance of the variable resistor circuit 182c to adjust the overall resistance of the first detecting circuit 182 to the reference resistance.

Further, the variable resistance circuit 182c may be implemented as a variable resistor, such as a sliding rheostat, a potentiometer, or the like. The adjustable end of the variable resistor is a second end E2 electrically connected to the processing system 14, and the other two non-adjustable ports are electrically connected to the reference sampling resistor R3 and ground, respectively. The processing system 14 can adjust the resistance of the variable resistor by adjusting the adjustable end of the variable resistor, so as to adjust the overall resistance of the first detecting circuit 182.

Alternatively, as shown in fig. 2m, the variable resistor circuit 182c may further include: a plurality of sampling resistors connected in series. In the present embodiment, the plurality of fingers is 2 or more than 2. For convenience of description and distinction, the sampling resistor included in the variable resistor circuit 182c is defined as an optional sampling resistor. The plurality of selectable sampling resistors are connected between the reference sampling resistor R3 and the ground in series, an N-MOS tube is connected in parallel at each resistor serial connection point, and the drain D of each N-MOS tube is electrically connected with the serial connection point. Further, as shown in fig. 2m, the source S of each N-MOS transistor is grounded as the third terminal E3 of the variable resistor circuit 182c, and the gate G of each N-MOS transistor is electrically connected to the processing system 14 as the second terminal E2 of the variable resistor circuit 182c, respectively. In this way, the processing system 14 can adjust the overall resistance of the first detection circuit 182 to the reference resistance by adjusting the states of the plurality of N-MOS transistors, determining whether to switch the selectable sampling resistors into the first detection circuit 182, and determining which one or more selectable sampling resistors are switched into the first detection circuit 182. For example, in fig. 2m, if the N-MOS transistor Q1 is turned on, the selectable sampling resistors R4, R5, and R6 are short-circuited, that is, none of the selectable sampling resistors R4, R5, and R6 is connected to the first detection circuit 182. If the N-MOS transistor Q1 is turned off and the N-MOS transistor Q2 is turned on, the selectable sampling resistor R4 may be connected to the first detection circuit 182. If the N-MOS transistors Q1, Q2, and Q3 are all turned off, the selectable sampling resistors R4, R5, and R6 may all be connected to the first detection circuit 182; and so on.

In the circuit structure schematic diagram provided in the embodiment of the present invention, each component may be replaced by a component having the same or similar function. For example, the N-MOS transistor may be replaced by a P-MOS transistor or a transistor (NPN transistor or PNP transistor), and the connection relationship between the devices may be adaptively adjusted by referring to the circuit operation schematic diagram shown in fig. 2 m.

In the embodiment of the application, the reference electric signal can be measured before the cleaning machine leaves the factory, and the measured reference electric signal is preset in the cleaning machine. Alternatively, the washing machine may be provided with a detection device for a reference electric signal, and a part of the detection device may be provided on the flow path of the clean liquid. In this way, the processing system 14 can determine the degree of cleaning of the cleaning object based on the difference between the second electrical signal and the reference electrical signal.

Further, in the embodiment of the present application, as shown in fig. 2n, the cleaning machine further includes: an outlet pipe 110 and a solution tank 111 connected to the nozzle 19 of the cleaning assembly 13 in sequence. Wherein, the clean liquid in the solution barrel 111 is sent to the nozzle 19 through the water outlet pipe 110 for the nozzle 19 to spray onto the cleaning object. Accordingly, as shown in fig. 2n, the washing machine further includes: a second conductor set 112 and a second detection circuit 113. The second conductor set 112 is disposed on the flow path of the clean liquid. The second detection circuit 113 is electrically connected between the second conductor set 112 and the processing system 14.

Alternatively, the second conductive body set 112 may be provided in at least one of the solution tank 111, the water outlet pipe 110, and the nozzle 19. The arrangement manner of the first conductor set can be referred to the related content of the first conductor set, and is not described herein again. Wherein one or more second conductor sets may be provided per site.

Optionally, a transition solution barrel (not shown in fig. 2 n) may be further disposed between the solution barrel 111 and the nozzle 19, and for convenience of description, in the embodiment of the present application, the transition solution barrel is simply referred to as the transition barrel; and the outlet conduit between the solution barrel 111 and the transition barrel is defined as a first outlet conduit and the outlet conduit between the transition barrel and the nozzle is defined as a second outlet conduit. Thus, the clean liquid in the solution barrel 111 flows into the transition barrel through the first outlet pipe, and then is sent into the nozzle 19 through the second outlet pipe so that the nozzle 19 sprays on the cleaning object. Accordingly, the second conductor set 112 is disposed on the flow path of the clean liquid. Further, the second conductor set 112 may also be disposed within the transition bucket.

In this embodiment, the second conductor set 112 includes at least two conductors that are not in contact with each other. In fig. 2n, the number of conductors is only 2. Further, a part of the conductors in the second conductor set 112 is electrically connected to the positive electrode of the power supply unit to form a positive conductor; the rest part is grounded to form a grounding conductor. Thus, when the positive conductor and the ground conductor are brought into contact with a clean liquid, the positive conductor and the ground conductor form a passage. Accordingly, the second detection circuit 113 generates a reference electrical signal when the positive conductor and the ground conductor form a path, and outputs the reference electrical signal to the processing system 14. The second detection circuit 113 may generate a reference electrical signal when the second conductor set 112 is in contact with the clean liquid and output the reference electrical signal to the processing system 14.

Optionally, the circuit structure of the second detection circuit 113 may be implemented as the circuit structure shown in fig. 2o, and for the description of the circuit structure of the second detection circuit 113, reference may be made to the related content of the first detection circuit 182, which is not described herein again.

Based on the second detection circuit 113 shown in fig. 2o, the processing system 14 can adjust the states of the plurality of N-MOS transistors in the second detection circuit 113 so that the reference electrical signal output by the second detection circuit 113 is kept within a stable range. For example, the processing system 14 may adjust the states of the plurality of N-MOS transistors in the second detection circuit 113, so that the reference voltage output by the second detection circuit 113 is the median voltage of the power supply unit voltage, and the like, but is not limited thereto. Accordingly, the processing system 14 can adjust the states of the plurality of N-MOS transistors in the first detection circuit 182 such that the states of the plurality of N-MOS transistors in the first detection circuit 182 are the same as the states of the plurality of N-MOS transistors in the second detection circuit 182, which can make the overall resistance of the first detection circuit 182 the same as the overall resistance of the second detection circuit 113, thereby helping to reduce the calculation amount of the cleaning degree of the cleaning object determined by the subsequent processing system 14 according to the difference between the second electrical signal and the reference electrical signal.

In the embodiment of the present application, the processing system 14 may determine the degree of cleaning of the cleaning object according to the difference between the second electrical signal and the reference electrical signal.

Further, in various embodiments of the present application, as shown in FIG. 2p, the processing system 14 may include a processor 14 a. Among them, the processor 14a may be: processor 14a may be any hardware processing device. Alternatively, the processor may be a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), or a Micro Controller Unit (MCU); the Programmable Device may also be a Programmable Device such as a Field-Programmable Gate Array (FPGA), a Programmable Array Logic Device (PAL), a General Array Logic Device (GAL), a Complex Programmable Logic Device (CPLD), or the like; or Advanced Reduced Instruction Set (RISC) processors (ARM), or System On Chip (SOC), etc., but is not limited thereto.

Accordingly, the processor 14a may match the difference between the second electric signal and the reference electric signal in the known correspondence between the difference in the electric signals and the cleanliness levels to determine the cleanliness level of the cleaning object, i.e., the cleanliness level corresponding to the difference between the second electric signal and the reference electric signal as the degree of cleaning of the cleaning object.

Alternatively, the processor 14a may calculate the difference between the second electrical signal and the reference electrical signal. Alternatively, as shown in fig. 2p, the processing system 14 may further include: and a differential operation circuit 14 b. The first input DW-R of the differential operation circuit 14b is connected to the output of the first detection circuit 182, and is configured to receive the second electrical signal; a second input PW-R of the differential operation circuit 14b receives the reference electrical signal. Further, the output terminal DL of the differential operation circuit 14b is electrically connected to the processor 14a, and is configured to output the difference between the second electrical signal and the reference electrical signal to the processor 14 a. Accordingly, the processor 14a can determine the cleaning degree of the cleaning object according to the difference between the second electric signal and the reference electric signal.

Alternatively, as shown in fig. 2p, the differential operation circuit 14b may include: an operational amplifier U3 and an RC filter circuit. The non-inverting input terminal 1 of the operational amplifier U3 is electrically connected to the output terminal of the first detection circuit 182 as the first input terminal of the differential operation circuit, and is configured to receive the second electrical signal. The inverting input terminal 3 of the operational amplifier U3 receives the reference electrical signal as a second input terminal of the differential operation circuit 14 b. Further, an RC parallel circuit is connected in parallel between the inverting input terminal 3 and the output terminal 4 of the operational amplifier U3. The RC parallel circuit is formed by connecting a resistor R24 and a capacitor C10 in parallel. Further, an RC filter circuit is connected in parallel between the output terminal 4 of the operational amplifier U3 and ground, wherein the RC filter circuit is formed by connecting a resistor R23 and a capacitor C9 in series, and the serial connection point of the resistor R23 and the capacitor C9 serves as the output terminal DL of the differential operational circuit 14b and is electrically connected to the processing system 14. Optionally, the operational amplifier U3 further includes: positive and negative power supply

unit supply terminals

2 and 5; wherein the positive power supply unit 5 is electrically connected with the positive pole of the power supply unit of the cleaning machine, and the negative power supply unit 5 is grounded.

It should be noted that, in some embodiments, in order to improve the accuracy of the cleanliness detection of the cleaning object, the optical attribute value and the second electrical signal may be further utilized to jointly determine the cleaning degree of the cleaning object, and for specific implementation, reference may be made to relevant contents of the above embodiments, and details are not repeated herein.

It should be noted that the cleanliness detection modes shown in fig. 2 a-2 p are applicable to cleaning machines, but not limited thereto, and may also be applicable to other cleaning apparatuses, such as a hand-held cleaner, a window cleaning robot, a wall cleaning machine, or an autonomous mobile cleaner. It is further worth mentioning that in some embodiments, the cleanliness detection results obtained in fig. 2 a-2 p may not be displayed visually, that is, the cleaning device may detect the cleanliness of the cleaning object by using the manner provided in fig. 2 a-2 p, but not display the cleanliness detection results. In other embodiments, processing system 14 may perform other operations in addition to controlling the plurality of first display tubes to display different combinations of colors, brightness, and shapes based on the cleanliness measurements obtained in FIGS. 2 a-2 p. For example, the processing system 14 may also adjust the operating state of the washing machine, etc., according to the degree of cleaning of the cleaning object.

In some embodiments, for the washing machine provided by the embodiments of the present application, some sensors for sensing the behavior characteristics of the user during the cleaning task performed by the washing machine may be further provided. For example, in some application scenarios, if the degree of contamination of the cleaning object is relatively high, the user tends to increase the effort to clean the cleaning object. On this basis, a pressure sensor may be provided on the handle 11a of the washing machine, optionally at the user's grip of the handle 11 a; or a pressure sensor is arranged on the cleaning assembly, and optionally, the pressure sensor is arranged at the bottom of the floor brush and is abutted against the object to be cleaned. The resistance strain gauge used in the pressure sensor is manufactured according to a strain effect, namely, when a conductor or a semiconductor material generates mechanical deformation under the action of external force, the resistance value of the conductor or the semiconductor material correspondingly changes. Therefore, the resistance of the pressure sensor changes when subjected to different stresses.

The present embodiment also provides a pressure detection circuit. As shown in fig. 2q, the pressure detection circuit includes: an RC filter circuit; the RC filter circuit is connected in parallel between the output end of the pressure sensor and ground, and can filter the voltage value output by the pressure sensor and provide the filtered voltage value to the processing system 14. Because the resistance of the pressure sensor changes due to different stresses, and accordingly, the voltage of the interface between the processing system 14 and the pressure sensor also changes correspondingly, the processing system 14 can obtain the force degree change of the user in the using process according to the resistance change of the pressure sensor.

Alternatively, the correspondence between the resistance value and the pressure of the pressure sensor may be preset in the processing system 14. Alternatively, the correspondence relationship between the resistance value and the pressure of the pressure sensor may be formed for a table, a graph, or the like. Fig. 2s shows only the correspondence between the resistance value and the pressure of the pressure sensor in the form of a graph.

Accordingly, when the processing system 14 obtains the pressure value of the pressure sensor, 100 sets of voltage values may be collected within 10ms by using the ADC function of the processing system 14, and after sorting, the middle 80 data are selected and then the average value of the voltage values is obtained, and since the chip ADC is 12-bit sampling and the operating voltage is 3.3V, the voltage V1 is calculated as ADC 3300/4095 (1). According to the circuit principle, the following results are obtained: R0/(R0+ R32) ═ V1/3300(2), R32 is a fixed resistor, and V1 can be calculated according to formula (1), so that the resistance value R0 of the pressure sensor can be obtained. Further, the processing system 14 may match the resistance value R0 of the pressure sensor with a preset corresponding relationship between the resistance value of the pressure sensor and the pressure, so as to obtain a pressure value P1 corresponding to the resistance value R0 of the pressure sensor, and use the pressure value P1 as the pressure value corresponding to the pressure sensor.

Alternatively, the pressure sensor may be a flexible membrane pressure sensor, helping to reduce the feeling of foreign objects when the user grips the handle. Alternatively, the thickness of the flexible membrane pressure sensor may be less than 0.3 mm. Alternatively, the size of the pressure sensor can be as shown in FIG. 2r, where φ 10 represents a diameter of the pressure sensor of 10mm in FIG. 2 r; phi 7.5 represents a diameter of 7.5mm representing the sensing surface of the pressure sensor; 40 denotes a length of the pressure sensor film of 40 mm; 5.8 denotes a pressure sensor membrane of width 5.8 mm; 2.54 indicates that the two output pins of the pressure sensor are spaced 2.54mm apart.

In this embodiment, the pressure sensor may detect the amount of pressure to which the handle is subjected and provide it to the processing system 14. Accordingly, the processing system 14 may control the first display region to display the pressure value; the magnitude of the pressure value is indicative of the degree of cleaning of the cleaning object by the cleaning assembly. Wherein, the larger the pressure value is, the lower the cleaning degree of the cleaning object is. Or, a corresponding relationship between the pressure value and the cleaning degree is preset in the processing system 14, based on which, the processing system 14 may also determine the cleaning degree of the cleaning assembly to the cleaning object according to the pressure value of the handle detected by the pressure sensor and the corresponding relationship between the pressure value and the cleaning degree; and controls the plurality of first display tubes to display a combination of color, brightness, and shape corresponding to the degree of cleanliness.

Alternatively, the force applied to the handle 11a may be different in consideration of different usage habits of different users. In order to improve accuracy of the cleaning degree of the cleaning object, the cleaning degree of the cleaning object may be represented by a relative pressure value. Wherein, the relative pressure value is the pressure difference delta P between the pressure value measured in real time and the reference pressure value.

Based on this, when the user uses the cleaning machine, the initial pressure of the user on the handle 11a can be firstly measured, the measured initial pressure value is used as the reference pressure value, then the pressure applied to the handle 11a by the user is measured in real time during the cleaning task of the cleaning machine on the cleaning object, and the pressure difference Δ P between the pressure applied to the handle 11a by the user during the use process and the reference pressure value is calculated. Alternatively, the processing system 14 may determine the degree of cleanliness of the cleaning object according to a preset correspondence between the pressure difference and the degree of cleanliness.

Further, the processing system 14 can also adjust the operating state of the washing machine according to the pressure difference Δ P between the pressure applied by the user to the handle 11a during use and the reference pressure value. For example, the processing system 14 may adjust the power of the main motor 118 of the washer, the motor of the water pump 114 and the motor of the cleaning assembly 13 to a power adapted to the pressure value Δ P, etc., according to the pressure difference Δ P between the pressure applied by the user to the handle 11a during use and a reference pressure value.

For another example, in other application scenarios, if the contamination level of the cleaning object is relatively high, the user may often clean the cleaning object back and forth. In this application scenario, the cleaning machine is driven by the user to change the operation direction continuously. Based on this, an acceleration sensor may be provided on the washing machine. Wherein the acceleration sensor may sense acceleration information of the washer during use and provide the sensed acceleration information to the processing system 14. Accordingly, the processing system 14 may determine the frequency of change of the work direction of the washer based on the acceleration information. Further, the processing system 14 may control the plurality of first display tubes to display the rate of change of the operation direction. Wherein the frequency of the change of the working direction is indicative of the degree of cleaning of the cleaning object by the cleaning assembly. Wherein the higher the frequency of the change of the working direction, the lower the degree of cleaning of the cleaning object. Or, the processing system 14 is preset with a corresponding relationship between the operation direction change frequency and the cleaning degree, and based on this, the processing system 14 may also determine the cleaning degree of the cleaning object by the cleaning assembly according to the corresponding relationship between the operation direction change frequency and the cleaning degree of the washing machine; and controls the plurality of first display tubes to display a combination of color, brightness, and shape corresponding to the degree of cleanliness.

Further, the processing system 14 may also adjust the operating state of the washer according to the frequency of changes in the direction of operation of the washer. For example, the processing system 14 may adjust the power of the main motor 118 of the washer, the motor of the water pump 114 and the motor of the cleaning assembly 13 to a power adapted to the frequency of the change of the working direction of the washer, etc., depending on the frequency of the change of the working direction of the washer. Alternatively, the processing system may not change the power of the main motor 118, the motor of the water pump 114 and the motor of the cleaning assembly 13 when the frequency of change of the working direction of the washer is less than or equal to the set first frequency; when the frequency of the change of the working direction of the washing machine is greater than the first frequency, the processing system may adjust the power of the main motor 118 of the washing machine, the motor of the water pump 114 and the motor of the cleaning assembly 13 to a power adapted to the frequency of the change of the working direction of the washing machine, and so on.

Alternatively, the acceleration sensor may be provided on each component of the washing machine. For example, the acceleration sensor may be located on the bottom of the cleaning assembly, the body or the handle assembly.

In the embodiment of the present application, no matter which way the cleaning assembly detects the cleaning degree of the cleaning object, the processing system 14 can display the cleaning degree of the cleaning object through the display 15, and can adjust the working state of the washing machine according to the cleaning degree of the cleaning object.

For example, the processing system 14 may adjust the power of the washer's water pump 114 to a power that is adapted to the degree of cleanliness of the cleaning object according to the degree of cleanliness of the cleaning object. Accordingly, the processing system 14 may preset a correspondence between the cleanliness class and the power of the water pump, and based on the correspondence, the processing system 14 may determine the power of the water pump according to the cleanliness class of the cleaning object. Preferably, the higher the cleaning grade, the lower the power of the water pump, and the smaller the water output of the cleaning device, indicating that the cleaning object is cleaner.

For another example, the processing system 14 may also adjust the power of the main motor and/or the cleaning assembly motor of the cleaning apparatus to a power adapted to the degree of cleaning of the cleaning object according to the degree of cleaning of the cleaning object. Accordingly, the processing system 14 may preset a correspondence between the cleanliness levels and the main motor and/or cleaning assembly motor powers, based on which the processing system 14 may determine the power of the main motor and/or cleaning assembly motor based on the cleanliness levels of the cleaning objects. Preferably, the higher the cleaning grade, the less power the main motor and/or the cleaning assembly motor, and the less water absorbing capacity of the cleaning device, indicates that the cleaning object is cleaner. In the embodiment of the application, the main motor sucks the dirty liquid from the suction nozzle 13a on the cleaning component of the cleaning device and sends the dirty liquid into the recovery barrel of the cleaning device through the suction channel on the cleaning device, and the cleaning component motor drives the cleaning component to clean the cleaning object.

For another example, the processing system 14 may also adjust the task execution time of the cleaning apparatus to a time adapted to the degree of cleaning of the cleaning object according to the degree of cleaning of the cleaning object. Accordingly, the processing system 14 may preset a correspondence between the cleanliness levels and the cleaning times, based on which the processing system 14 may determine the cleaning times according to the cleanliness levels of the cleaning objects. Preferably, the higher the cleaning grade, the less power the main motor and/or the cleaning assembly motor, and the shorter the cleaning time, indicating that the cleaning object is cleaner.

Alternatively, if the processing system 14 determines that the degree of cleaning of the cleaning object is satisfied, the washer may be controlled to stop operating. Wherein, the standard cleaning degree of the cleaning object can be that the cleanliness grade of the cleaning object is the highest cleanliness grade. Alternatively, if the cleanliness class of the cleaning object is the highest cleanliness class, the processing system 14 may control the water pump, the main motor, and/or the cleaning assembly motor to stall, etc.

Accordingly, as shown in fig. 3a, the washing machine further comprises: the water pump drives the circuit 115. The water pump drive circuit 115 is electrically connected between the water pump 114 and the processing system 14. Wherein, when the processing system 14 adjusts the working state of the washing machine, the signal parameters can be determined according to the cleaning degree of the cleaning object; and inputs the first PWM signal with the signal parameter to the water pump driving circuit 115 to control the water pump to output the water output meeting the cleaning requirement. Wherein the signal parameters include: the frequency and duty cycle of the first PWM signal. Alternatively, for washers of different performance, there may be a difference in the voltage of the power supply unit, and therefore the processing system 14 may also determine the signal parameter from the voltage of the power supply unit and the degree of cleaning of the cleaning object. For example, the voltage of the power supply unit and the signal parameter corresponding relation of the first PWM signal may be as shown in table 1 below.

TABLE 1 correspondence of voltage of power supply unit and signal parameter of first PWM signal

Correspondingly, this application embodiment still provides a water pump drive circuit. As shown in fig. 3b, the water pump driving circuit 115 includes: a main drive circuit 115a, an auxiliary drive circuit 115b, and a selection circuit 115 c. The main driving circuit 115a and the auxiliary driving circuit 115b are electrically connected to the processing system 14, the selection circuit, and the water pump 114. Alternatively, the main driving circuit 115a may be electrically connected to the water pump 114 directly, or may be electrically connected to the water pump through the auxiliary driving circuit 115 b.

Alternatively, the auxiliary driving circuit 115b may be electrically connected to the processing system 14 directly, or may be electrically connected to the processing system 14 through the main driving circuit 115 a.

In this embodiment, the main driving circuit 115a may drive the water pump 114 to operate according to the first PWM signal sent by the processing system 14. The selection circuit 115c can cut off the auxiliary driving circuit 115b when the main driving circuit 115a fails, so as to prevent the water pump 114 from being damaged after the direct-current voltage is applied to the water pump 114.

The operation principle of the water pump driving circuit provided in this embodiment will be described in detail with reference to a specific circuit structure. Fig. 3c is a schematic diagram of an operation of a water pump driving circuit according to an embodiment of the present application. As shown in fig. 3c, an input terminal of the main driving circuit 115a is electrically connected to the processing system 14, and is configured to receive the first PWM signal sent by the processing system 14; the output end of the power supply unit is electrically connected with the water pump 114 through the auxiliary driving circuit 115b, and the power supply end of the power supply unit is electrically connected with the power supply unit. The main driving circuit 115a may drive the water pump 114 to operate according to the first PWM signal.

The selection circuit 115c is electrically connected to a connection point between the output terminal of the main driving circuit 115a and the input terminal of the auxiliary driving circuit 115b, and the selection circuit 115c can cut off the auxiliary driving circuit 115b when the main driving circuit 115a fails, thereby preventing the water pump 114 from being damaged after the direct-current voltage is applied to the water pump 114.

As shown in fig. 3c, the main driving circuit 115a may include: an NPN transistor Q10, an NPN transistor Q9 and a P-MOS transistor Q8. The base of the NPN triode Q10 is electrically connected with the processing system 14, and the collector of the NPN triode Q10 is electrically connected with the anode P + of the power supply unit after being connected with the resistors R34 and R35 in series; the emitter of which is grounded. The base of the NPN triode Q9 is electrically connected with the serial connection point of the resistors R34 and R35, the collector of the NPN triode Q9 is electrically connected with the anode P + of the power supply unit, and the emitter of the NPN triode Q9 is electrically connected with the grid of the P-MOS transistor Q8. For the P-MOS transistor Q8, its source S is electrically connected to the positive electrode P + of the power supply unit, and its drain D is electrically connected to the input terminal of the auxiliary driving circuit 115 b.

Further, as shown in fig. 3c, the auxiliary driving circuit 115b includes: and a P-MOS transistor Q7. The source S of the P-MOS transistor Q7 is electrically connected to the output terminal of the main driving circuit 115a, the gate G thereof is electrically connected to the positive electrode P + of the power supply unit after being connected in series to the resistor R50, and the drain D thereof is electrically connected to the positive electrode PM + of the water pump 114.

As shown in fig. 3c, the selection circuit includes: capacitor C23, diode D11 and NPN transistor Q11. One end of the capacitor C23 is electrically connected to the connection point between the output end of the main driving circuit 115a and the input end of the auxiliary driving circuit 115b, and the other end thereof is electrically connected to the cathode of the diode D11; the anode of diode D11 is connected to ground. Further, the base of the NPN transistor Q11 is electrically connected to the series connection point of the capacitor C23 and the diode D11, the collector thereof is electrically connected to the positive electrode P + of the power supply unit, and the emitter thereof is grounded.

Optionally, the selection circuit 115c may further include: the buffer circuit 115c 1. The buffer circuit is electrically connected between the series connection point of the capacitor C23 and the diode D11 and the base electrode of the NPN triode Q11.

Further, the buffer circuit 115c1 includes: an operational amplifier U4 and an RC filter circuit. The non-inverting input terminal of the operational amplifier U4 is electrically connected to the series connection point of the capacitor C23 and the diode D11 after being connected in series to the R44, and the inverting input terminal thereof is electrically connected to the output terminal thereof. Further, the RC filter circuit is connected between the output end of the transport amplifier U4 and the ground in parallel and is formed by connecting a resistor R46 and a capacitor C25 in series; the series connection point of the resistor R46 and the capacitor C25 is connected in series with R47 and then is electrically connected with the base electrode of the NPN triode Q11.

Further, the water pump driving circuit 115 may further include: the water pump current detection circuit 115 d. The water pump current detection circuit 115d is electrically connected between the negative electrode of the water pump 114 and the processing system 14, and is configured to detect a current flowing through the water pump 114 and provide the current to the processing system 14. As shown in fig. 3c, the port PMCS of the water pump current detection circuit 115d is electrically connected to the processing system 14. Further, if the current flowing through the water pump is greater than or equal to the preset current threshold, the processing system 14 stops inputting the first PWM signal to the water pump driving circuit 115 to stop the water pump 114. The preset current threshold may be a current value of the water pump when the water pump abnormally operates.

Alternatively, as shown in fig. 3c, the water pump current detection circuit 115d includes: parallel sampling resistors R42 and R43. Further, as shown in fig. 3c, the water pump current detection circuit 115d may further include: and the resistor R40 and the capacitor C22 form an RC filter circuit for filtering ripples of the output voltage of the water pump 114.

The operation of the water pump driving circuit 115 will be described in detail with reference to the schematic circuit diagram of fig. 3 c.

As shown in fig. 3c, processing system 14 inputs the first PWM signal to NPN transistor Q10 through the Pump-c port. When the processing system 14 outputs a high level to the NPN transistor Q10, the NPN transistor Q10 is turned on. Thus, the voltage of the gate G of the PMOS transistor Q8 is pulled low, the voltage of the source S is the voltage of the power supply unit, and the voltage of the source S is higher than the voltage of the gate G, so the PMOS transistor Q8 is turned on. Accordingly, when processing system 14 outputs a low level to NPN transistor Q10, P-MOS transistor Q8 turns off. Therefore, when the processing system 14 inputs the first PWM signal to the NPN transistor Q10, the ac signal is received at both ends of the capacitor C23, the capacitor C23 is turned on, the output voltage thereof is inputted to the NPN transistor Q11 via the operational amplifier U4, the NPN transistor Q11 is turned on, the gate of the P-MOS transistor Q7 is pulled low, the source S thereof is the voltage of the power supply unit, and therefore, the P-MOS transistor Q7 is turned on. Therefore, the power supply unit starts supplying power to the water pump 114, and the water pump 114 operates. The current flows into the water pump from the positive pole PM + of the water pump, flows out from the negative pole PM-of the water pump, and is grounded through the sampling resistors R42 and R43. The PMCS port has a voltage value U-I x R, where the resistance value R is a parallel resistance value of the sampling resistors R42 and R43, and the processing system 14 detects the voltage value of the PMCS port and can calculate a current value flowing through the water pump 114.

Alternatively, if the main driving circuit 115a is short-circuited and the P-MOS transistor Q8 is always in the on state, the capacitor C23 receives the dc signal, the capacitor C23 is in the charging state, which is equivalent to an open circuit, so that the NPN transistor Q11 is turned off, and the gate G of the P-NOS transistor Q7 is electrically connected to the positive electrode P + of the power supply unit through the resistor R50. Since the main driving circuit 115a is short-circuited, the voltage of the source S of the Q7 is equal to the voltage of the gate G, so that the Q7 cannot be turned on, thereby protecting the water pump from being burnt.

It should be noted that the circuit structure of the water pump driving circuit shown in fig. 3c is only an exemplary implementation, and the circuit structure is not limited thereto.

In some embodiments, the at least one display area further comprises: and a third display area 15 c. The third display area 15 is used to display the liquid level information of the liquid storage device of the washing machine. Wherein the liquid storage device is a solution barrel and/or a recovery barrel; alternatively, as shown in fig. 1b and 1c, the third display area 15c is located in the middle area of the display 15.

In this embodiment, the liquid level information of the liquid storage device may be: the level value of the liquid storage device can also be the liquid level state in the liquid storage device. Wherein, the liquid level state in the liquid storage device is as follows: the liquid storage device is in a full liquid level state or a liquid lack state. Accordingly, the third display area 15c may comprise a first sub-area 15c1 formed by at least one second indicator light. Wherein the at least one second indicator light displays different fluid level conditions of the fluid storage device under control of the processing system 14.

In one embodiment, the liquid storage device of the washing machine includes a solution tank and a recovery tank, and for this case, the at least one second indicator light may include: a first type indicator light and a second type indicator light. Alternatively, the first type indicator light and the second type indicator light may be distributed in the same row, the same column, or in a staggered distribution, etc., but not limited thereto. In this embodiment, the first type indicator light is used for lighting or flashing when clean liquid in the solution barrel of the cleaning machine is lower than a set first liquid level threshold value so as to prompt a user that the solution barrel is in a liquid-lacking state; the second type of indicator light is used for lighting or flickering when the dirty liquid in the recycling bin of the cleaning machine exceeds a set second liquid level threshold value so as to prompt a user that the recycling bin is in a full liquid level state. The first liquid level threshold value is the lowest liquid level of clean liquid in the solution barrel allowed by the cleaning machine, and if the clean liquid in the solution barrel is lower than the first liquid level threshold value, the solution barrel is in a liquid-lacking state; the second liquid level threshold is the highest liquid level of the dirty liquid that can be contained in the recycling bin, and if the clean liquid in the recycling bin is higher than the liquid level, the recycling bin is in a full liquid level state. Optionally, the first liquid level threshold is less than the second liquid level threshold. Further, the second liquid threshold is less than or equal to the height of the recovery tank. Of course, the first type indicator light may also indicate that the solution barrel is in a full level state during the process of injecting the clean liquid into the solution barrel, so as to prompt the user to stop injecting the clean liquid into the solution barrel.

In some embodiments, the third display area may further include: a second sub-area (not shown in fig. 1b and 1 c). The second sub-area may be formed by at least one first nixie tube for displaying the level value of the liquid storage device, e.g. 1, 2 or 3, under the control of the processing system 14. Optionally, the at least one first nixie tube may be located in a middle position between the first type indicator light and the second type indicator light, that is, the first type indicator light and the second type indicator light are respectively disposed on two sides of the at least one first nixie tube.

It should be noted that, whether the third display area displays the liquid level state of the liquid storage device or displays the liquid level value of the liquid storage device, the cleaning machine may include: a liquid level detection device 117. Wherein, the liquid level detection device 117 may be disposed inside and/or outside the liquid storage apparatus for detecting the liquid level information of the liquid in the liquid storage apparatus. The level information may reflect a level status and/or a level value of the liquid storage device.

Accordingly, the processing system 14 is electrically connected to the liquid level detection device 117, and can calculate the liquid level state or the liquid level value of the liquid level storage device according to the liquid level information of the liquid in the liquid level storage device. In addition, the processing system 14 may control the liquid storage device accordingly based on the liquid level information.

In the embodiment of the present application, the liquid level detection device 117 may be a contact type liquid level detection device, and may also be a non-contact type liquid level detection device, which are respectively exemplified below. Fig. 4a is a schematic structural diagram of another cleaning machine according to an embodiment of the present disclosure. As shown in fig. 4a, at least one third set of electrical conductors 117a (contact level detection device) is provided in the liquid storage device, and the at least one third set of electrical conductors 117a is connected to the processing system 14. At least one third set of electrical conductors 117a for detecting fluid level information of the fluid in the fluid storage device and reporting the detected fluid level information to the processing system 14. The processing system 14 can display the liquid level information in the third display area 15c on the one hand and can correspondingly control the liquid storage device on the basis of the liquid level information on the other hand.

In this embodiment, utilize the electric conductor to survey the liquid level information of liquid among the liquid storage device, need not to utilize the buoyancy of liquid alright realize liquid level detection, not only can reduce the stability of liquid level to the influence of liquid level testing result, still can improve liquid level detection's reliability and timeliness.

It should be noted that the shapes, the number, the implementation forms and the arrangement positions of the liquid storage device, the processing system and the electric conductors provided in fig. 4a of the present embodiment are all exemplary and are not limited to these.

In an alternative embodiment, as shown in fig. 4a, the washing machine further comprises: at least one level detection circuit 118. At least one third set of electrical conductors 117a is connected to the processing system 14 by at least one level detection circuit 118. And at least one liquid level detection circuit 118, configured to convert the liquid level information detected by the at least one third electrical conductor set 117a into an electrical signal and output the electrical signal to the processing system 14, so that the processing system 14 performs corresponding control on the liquid storage device according to the electrical signal. The positions and number of the liquid level detecting circuits 118 in fig. 4a are only exemplary and not limiting.

Further, as shown in FIG. 4a, each liquid level detection circuit 118 includes: a power supply terminal P +, a ground terminal GND and a signal output terminal MCU-IN connected to the processing system 14. As shown in fig. 4b, each liquid level detection circuit 118 further comprises a first terminal 1 and a second terminal 2 insulated from each other, said first terminal 1 and second terminal 2 being used for connecting at least one third set of electrical conductors 117a for detecting the same liquid level. Each third conductor set 117a includes a first conductor and a second conductor that are not in contact with each other. Wherein, the first conductor and the second conductor in several groups of conductors for detecting the same liquid level in at least one third conductor group 117a are respectively electrically connected with the first terminal 1 and the second terminal 2 of the same detection circuit. Each third conductor group 117a may include one or more first conductors, one or more second conductors, and the number of the first conductors and the number of the second conductors may be the same or different. Fig. 4b is a schematic circuit diagram of a liquid level detection circuit provided in the embodiment of the present application. As shown IN fig. 4b, the liquid level detection circuit includes, IN addition to the power supply terminal P +, the ground terminal GND and the signal output terminal MCU-IN connected to the processing system 14, the following: and a filter circuit 118a on the side of the power supply terminal P +. The filter circuit 118a is connected in parallel with a plurality of groups of electric conductors connected to the detection circuit, and is used for filtering noise interference caused by liquid level fluctuation.

The first conductor in each conductor set may be electrically connected to the first terminal 1 of the liquid level detection circuit 118, or may be electrically connected to the second terminal 2 of the liquid level detection circuit 118. When the first electrical conductor is electrically connected to the first terminal 1 of the liquid level detection circuit 118, the second electrical conductor is electrically connected to the second terminal 2 of the liquid level detection circuit 118. Accordingly, when the first electrical conductor is electrically connected to the second terminal 2 of the liquid level detection circuit 118, the second electrical conductor is electrically connected to the first terminal 1 of the liquid level detection circuit 118. For convenience of description and distinction, the electrical conductor electrically connected to the second terminal 2 of the liquid level detection circuit 118 is hereinafter referred to as a positive electrical conductor, and the electrical conductor electrically connected to the first terminal 1 of the liquid level detection circuit 118 is hereinafter referred to as a ground electrical conductor. Alternatively, as shown in FIG. 4b, the positive conductor is electrically connected to the second terminal 2 of the liquid level detection circuit 118, and the ground conductor is electrically connected to the first terminal 1 of the liquid level detection circuit 118.

Alternatively, as shown in fig. 4b, the filter circuit 118a may be an RC circuit, and a resistor R51, a resistor R52 and a capacitor C27 form a filter. In order to improve the filtering effect on noise, the capacitance value of the capacitor C27 may be μ f or pf level.

Further, as shown in fig. 4b, in order to improve the stability of the liquid level detection circuit 118, the liquid level detection circuit 118 further includes: a first zener D12. The cathode and the anode of the first voltage regulator tube D12 are electrically connected to the power supply terminal P + and the ground terminal GND of the detection circuit to which the first voltage regulator tube D12 belongs, respectively, and are located between the RC series-parallel circuit and the power supply terminal P +.

To further improve the stability of the liquid level detection circuit 118, the liquid level detection circuit 118 further includes: and the second voltage regulator tube D13 is arranged on one side of the signal output end MCU-IN. The cathode and the anode of the second regulator tube D13 are electrically connected to the power supply terminal P + and the ground terminal GND of the detection circuit to which the second regulator tube D13 belongs, respectively.

Alternatively, as shown in fig. 4b, since the resistance value of the portion between the electric conductors between the first terminal 1 and the second terminal 2 may vary, the liquid level detection circuit 118 is provided with: a current limiting resistor R53 connected IN series between the power supply terminal P + and the RC circuit, and a current limiting resistor R54 connected IN series between the signal output terminal MCU-IN and the positive conductor. The resistor R53 and the resistor R54 are both current-limiting resistors and mainly play a role in protection. The resistor R53 protects the first voltage regulator D12, and the resistor R54 protects the processing system 14. Further, the first and second regulators D12 and D13 may make the signal output more smooth.

For the liquid level detection circuit shown in fig. 4b, the detection circuit is used to detect a predetermined full liquid level of the liquid storage device. When the liquid IN the liquid storage device reaches the liquid level detected by the first conductor and the second conductor connected to the liquid level detection circuit 118, the first conductor and the second conductor are conducted under the action of the liquid, the voltage of the signal output end MCU-IN changes, and the signal output end MCU-IN outputs a third electrical signal to the processing system 14. The processing system 14 then controls the liquid storage device accordingly based on the third electrical signal.

Accordingly, the predetermined remaining level of the liquid storage device can also be detected using the liquid level detection circuit. When the liquid IN the liquid storage device is lower than the liquid level detected by the first conductor and the second conductor connected to the liquid level detection circuit 118, the first conductor and the second conductor are not conducted, the voltage of the signal output end MCU-IN changes, and the signal output end MCU-IN outputs a fourth electrical signal to the processing system 14. Then, the processing system 14 can obtain that the predetermined remaining liquid level of the liquid storage device is lower than the predetermined liquid level (for the solution barrel, the predetermined liquid level is the above-mentioned first liquid level threshold value) according to the second electric signal, and can correspondingly control the liquid storage device according to the second signal.

In the embodiment of the present application, the number of the at least one liquid level detection circuit 118 and the number of the at least one third conductor set 117a can be flexibly set according to actual requirements. The number of the liquid level detection circuits 118 may be the same as or different from the number of the conductor sets 117a, and the liquid level detection circuits are flexibly arranged according to actual liquid level detection requirements. The number of liquid level detection circuits 118 and the number of conductor sets 117a are set for illustrative purposes in conjunction with several alternative liquid level detection methods.

Mode 1: as shown in fig. 4c, a conductor set 117a is disposed at the same liquid level to detect the liquid level, and the conductor set is electrically connected to the detection circuit corresponding to the liquid level. In this manner, the number of detection circuits is equal to the number of conductor sets.

Mode 2: as shown in fig. 4d, the same liquid level is detected by disposing a plurality of conductor sets 117a, which may be connected to a detection circuit. In this manner, the number of detection circuits may be less than the number of conductor sets.

Mode 3: as shown in fig. 4e, the same conductor set is used to detect multiple liquid levels. The electric conductors for detecting different liquid levels in one electric conductor group are respectively and electrically connected with different detection circuits. In this manner, the number of detection circuits is greater than the number of conductor sets.

In the embodiment of the present application, the liquid level detection of the liquid in the liquid storage device can be realized by whether at least one third conductive body group 117a connected between the first terminal 1 and the second terminal 2 of the liquid level detection circuit 118 is conducted. Thus, detection of different liquid levels may be achieved by controlling the distance of the first and/or second electrical conductors of the at least one third electrical conductor set 117a from the bottom of the liquid storage device. Optionally, the distance between the end of each of the several sets of electrical conductors in the at least one third electrical conductor set 117a for detecting the same liquid level and the bottom of the liquid storage device is the same. Or, the distances between the ends of the first and second conductors in the at least one third conductor group 117a and the bottom of the liquid storage device are different; however, the distances between the ends of all the first electrical conductors in the sets of electrical conductors for detecting the same liquid level and the bottom of the liquid storage device are the same, and the distances between the ends of the second electrical conductors in the sets of electrical conductors for detecting the same liquid level and the bottom of the liquid storage device are the same.

The distance between the conductive body and the bottom of the liquid storage device is different for detecting different liquid levels.

Further, in the embodiment of the present application, at least one third conductive body group 117a may be disposed at different positions of the liquid storage device to control the distance from the bottom of the liquid storage device. The position of at least one third conductor set 117a is described in the following with reference to several alternative liquid level detection modes.

Embodiment 1: all of the conductors in each conductor set may be disposed on an inner sidewall of the liquid storage device.

Embodiment 2: part of the electric conductors in each electric conductor group are arranged on the inner side wall of the liquid storage device, and the other part of the electric conductors are arranged at the bottom of the liquid storage device.

Embodiment 3: all of the electrical conductors in each conductor set are suspended inside the top of the liquid storage device.

Embodiment 4: part of the electric conductors in each electric conductor group are suspended on the inner side of the top of the liquid storage device, and the other part of the electric conductors are arranged on the bottom of the liquid storage device.

Embodiment 5: part of the electric conductors in each electric conductor group are suspended on the inner side of the top of the liquid storage device, and the other part of the electric conductors are arranged on the inner side wall of the liquid storage device.

Embodiment 6: all of the electrical conductors in each electrical conductor set are disposed at the bottom of the liquid storage device.

Further, the conductive body suspended on the inner side of the top of the liquid storage device can be a rigid conductive probe, and one end of the conductive body is fixedly arranged on the inner side of the top of the liquid storage device, so that when liquid in the liquid storage device flows, the conductive body is prevented from being pushed by the liquid to swing, and short circuit between the conductive bodies is avoided. For the electric conductor disposed on the inner side wall of the liquid storage device, it may be a flexible conductive sheet, a conductive contact, a conductive terminal, etc., but is not limited thereto. Further, when the conductor is a rigid conductive probe, it may be an integrally molded linear structure.

Further, as can be seen from the above embodiments 1-6, in an alternative embodiment, as shown in fig. 4f, each conductor set may include at least one rigid conductive probe disposed in the center of the liquid storage device and at least one flexible conductive sheet, conductive contact, conductive terminal, or the like disposed on the inner side wall of the liquid storage device. In this case, the conductors for detecting the same level comprise at least one conductor connected to a first terminal 1 of the detection circuit and at least one conductor connected to a second terminal 2 of the detection circuit. The at least one rigid conductive probe and the at least one flexible conductive sheet, the conductive contact or the conductive terminal and the like arranged on the inner side wall of the liquid storage device can be arranged by adopting the following implementation modes.

Embodiment a 1: at least one rigid conductive probe arranged in the center of the liquid storage device can extend to the bottom of the liquid storage device, and conductive bodies (flexible conductive sheets, conductive contacts or conductive terminals) arranged on the inner side wall of the liquid storage device are sequentially and fixedly arranged on the inner side wall of the liquid storage device according to the sequence of the distances from the bottom of the liquid storage device to the top of the liquid storage device.

In embodiment a1, the at least one rigid conductive probe is in electrical communication with the electrical conductor disposed on the interior side wall of the liquid storage device when the liquid level in the liquid storage device reaches a level detected by the electrical conductor disposed on the interior side wall of the liquid storage device. And the signal output end MCU-IN of the detection circuit connected with the conductor arranged on the inner side wall of the liquid storage device outputs a third electric signal to the processing system 14. The processing system 14 then controls the liquid storage device accordingly based on the first electrical signal.

Accordingly, when the liquid level of the liquid storage device is lower than the liquid level detected by the electric conductor arranged on the inner side wall of the liquid storage device, the at least one rigid electric conduction probe is not conducted with the electric conductor arranged on the inner side wall of the liquid storage device. And the signal output end MCU-IN of the detection circuit connected with the conductor arranged on the inner side wall of the liquid storage device outputs a fourth electric signal to the processing system 14. The processing system 14 then controls the liquid storage device accordingly based on the second electrical signal.

Embodiment a 2: at least one rigid conductive probe is suspended on the inner side of the top of the liquid storage device in the sequence from low to high according to the distance between the tail end of the rigid conductive probe and the bottom of the liquid storage device, and conductive bodies (flexible conductive sheets, conductive contacts or conductive terminals) arranged on the inner side wall of the liquid storage device are sequentially and fixedly arranged on the inner side wall of the liquid storage device in the sequence from low to high according to the distance between the rigid conductive probes and the bottom of the liquid storage device, and the distances between the conductive bodies for detecting the same liquid level and the bottom of the liquid storage device are the same.

In embodiment a2, when a liquid level of the liquid storage device reaches a liquid level detected by the electrical conductor and the at least one rigid electrically conductive probe disposed on the inner side wall of the liquid storage device, the rigid electrically conductive probe for detecting the liquid level is in electrical communication with the electrical conductor disposed on the inner side wall of the liquid storage device. And the signal output end MCU-IN of the detection circuit connected with the rigid conductive probe for detecting the liquid level and the conductor arranged on the inner side wall of the liquid storage device outputs a third electric signal to the processing system 14. The processing system 14 then controls the liquid storage device accordingly based on the third electrical signal.

Accordingly, when the liquid level of the liquid storage device is lower than the liquid level detected by the electric conductor and the at least one rigid conductive probe which are arranged on the inner side wall of the liquid storage device, the rigid conductive probe for detecting the liquid level is not conducted with the electric conductor arranged on the inner side wall of the liquid storage device. And the signal output end MCU-IN of the detection circuit connected with the rigid conductive probe for detecting the liquid level and the conductor arranged on the inner side wall of the liquid storage device outputs a fourth electric signal to the processing system 14. The processing system 14 then controls the liquid storage device accordingly based on the fourth electrical signal.

It should be noted that, in the embodiments a1 and a2, the relative position of the electrical conductor on the inner side wall of the liquid storage device is not limited, that is, the electrical conductor on the inner side wall of the liquid storage device may be arranged along any straight line on the inner side wall of the liquid storage device, or may be arranged along any spiral line or curve on the inner side wall of the liquid storage device, and the like, but is not limited thereto.

In another alternative embodiment, as shown in fig. 4g, each conductor set includes a plurality of rigid conductive probes suspended inside the top of the liquid storage device, with one of the plurality of rigid conductive probes being located in the center of the liquid storage device and the remaining rigid conductive probes surrounding the conductor located in the center. Wherein, each conductor group can adopt the following several possible embodiments to arrange.

Embodiment b 1: the distance between the end of the rigid conductive probe in each conductor set and the bottom of the liquid storage device is the same. In such an embodiment, each set of rigid conductive probes may be used to detect one liquid level.

Embodiment b 2: the tip of the first conductive probe in each conductor set contacts or extends to a position a first distance from the bottom of the liquid storage device, which may be the lowest level of the liquid storage device. When the liquid level of the liquid in the liquid storage device is lower than the liquid level, namely when no liquid exists at the lowest liquid level, the liquid storage device is in a liquid-lack state. Further, the distances between the other conductive probes except the center conductive probe in each conductor set and the bottom of the liquid storage device are the same. In such an embodiment, each set of rigid conductive probes may be used to detect one liquid level.

It should be noted that, since the other conductive probes except the first conductive probe in the embodiments b1 and b2 are disposed around the central conductive probe, no matter which direction the liquid storage device is tilted, the liquid level that can be detected by the group of conductive bodies can be detected, so that the liquid storage device is prevented from being tilted to cause the liquid level not to be detected, and the detection accuracy of the conductive bodies on the liquid storage device is improved.

Embodiment b 3: the end of the first conductive probe in each conductive body group is in contact with the bottom of the liquid storage device or the end of the first conductive probe extends to a position with a first distance from the bottom of the liquid storage device, and the distances between the other conductive probes except the first conductive probe in each conductive body group and the bottom of the liquid storage device are different. Wherein, the distance between the bottom of other conductive probes except for the first conductive probe and the liquid storage device in each conductor group can be set according to different inclination degrees of the liquid storage device, so that the liquid level of the liquid in the liquid storage device can be detected no matter how large the inclination angle of the liquid storage device is, and the accuracy of liquid level measurement of the liquid storage device during inclination is improved.

Embodiment b 4: the end of the first conductive probe in each conductive body group is in contact with the bottom of the liquid storage device or the end of the first conductive probe extends to a position with a first distance from the bottom of the liquid storage device, and the distances between the other conductive probes except the first conductive probe in each conductive body group and the bottom of the liquid storage device are different. The distances between the other conductive probes except the first conductive probe in each conductor group and the bottom of the liquid storage device are arranged in sequence from top to bottom, and the minimum distance is the first distance. In such an embodiment, each set of rigid conductive probes may be used to detect multiple liquid levels.

In yet another alternative embodiment, each electrical conductor set includes a plurality of rigid conductive probes suspended inside the top of the liquid storage device, and the plurality of rigid conductive probes are disposed around the center of the top of the liquid storage device. The number of the rigid conductive probes may be 3, 4, 5, 6, 8, etc., but is not limited thereto.

In yet another alternative embodiment, the present embodiment is the same as the previous embodiment, except that each conductive body set comprises a plurality of conductive probes disposed at the bottom of the liquid storage device, the conductive probes extend from the bottom to the top of the liquid storage device, the top end of each conductive probe is conductive, and the body of each conductive probe is isolated by the insulating material and is not conductive. In the embodiment that the conductive body is arranged at the bottom of the liquid storage device, when the plurality of conductive probes in each group extend for the same first length, the conductive body can be used for detecting the preset lowest liquid level of the liquid storage device; the plurality of conductive probes of each set may be configured to detect a level of a liquid in the middle of the liquid storage device, i.e., an intermediate level, when the plurality of conductive probes of each set extend over a different second length. The plurality of conductive probes of each group may be used to detect a preset maximum level of the liquid storage device when the plurality of conductive probes of each group extend for a third length that is the same. In the above embodiments, the first length is less than the second length, and the second length is less than the third length.

Fig. 5a is a schematic structural diagram of another cleaning machine according to an embodiment of the present disclosure. As shown in fig. 5a, the washing machine further includes: a liquid level detection device 117 disposed outside the liquid storage apparatus. Wherein the liquid level detection device 117 comprises: at least one level detection sensor 117 b. The liquid level detection sensor 117b includes a component (e.g., a capacitor) whose physical property changes as the liquid moves away from or close to (without contact). The liquid level detection sensor 117b may detect a change in the liquid level using the principle that the physical properties of the member may change when the liquid moves away from or approaches. Each liquid level detecting sensor 117b can sense the variation of the liquid level in the liquid storage device, convert the sensed variation of the liquid level into an electrical signal, and output the electrical signal to the processing system 14, so that the processing system 14 can calculate the liquid level information of the liquid storage device according to the electrical signal.

In an alternative embodiment, the at least one liquid level detection sensor 117b is disposed on an outer wall of the liquid storage device to sense a change in liquid level in the liquid storage device.

In an alternative embodiment, the body 12 generally surrounds the bottom surface and some or all of the sides of the fluid storage device for securing or supporting the fluid storage device. Alternatively, the inner sidewall of the body 12 may be close to the liquid storage device, or may maintain a small air gap with the liquid storage device, and the embodiment is not limited thereto. In this alternative embodiment, at least one level detection sensor 117b may be provided on a side wall (inner or outer side wall) of the body 12 of the cleaning device. Of course, the at least one liquid level detection sensor 117b may also be provided on an outer wall of the liquid storage device. Alternatively, a part of the liquid level detection sensor is provided on a side wall (inner side wall or outer side wall) of the main body 12 of the cleaning apparatus, and a part of the liquid level detection sensor is provided on an outer wall of the liquid storage device.

It should be understood that the illustration of fig. 5a for the location of the at least one level detection sensor 117b is for exemplary purposes and is not intended to limit other alternative locations. In other optional embodiments of the present application, the setting position of the at least one liquid level detection sensor 117b can be flexibly set according to actual requirements.

In some exemplary embodiments, to further improve the reliability of the liquid level detection result, at least one liquid level detection sensor 117b may be grouped, and the groups of liquid level detection sensors may be dispersedly disposed on the outer wall of the liquid level storage device or the side wall of the body 12 in units of groups, so as to comprehensively detect the liquid level information in the liquid level storage device from multiple directions.

Alternatively, the at least one level detection sensor 117b may be divided into at least one level detection sensor group. Wherein the at least one liquid level detection sensor group may be dispersedly disposed on at least one directional outer wall of the liquid storage device, or, dispersedly disposed on at least one directional side wall of the body 12 of the cleaning apparatus. Wherein the at least one direction comprises: at least one of a front, a back, a left, and a right.

It will be appreciated that in a liquid storage device, the liquid level generally rises or falls along the height of the liquid storage device. Therefore, in order to facilitate each of the liquid level detection sensor groups to sense the ascending and descending changes of the liquid level along the height direction of the liquid storage device, each of the liquid level detection sensor groups may be arranged on the outer wall of the liquid storage device or the side wall of the body 12 of the cleaning apparatus along the height direction of the liquid storage device. For example, as shown in fig. 5b and 5c, when the liquid storage device is implemented as a cylindrical device, at least one liquid level detection sensor group may be arranged on the outer wall of the liquid storage device along the generatrix direction of the liquid storage device. The arrangement heights of different liquid level detection sensor groups can be the same or different, and the embodiment is not limited. Alternatively, in the above embodiments, each liquid level detection sensor 117b may be implemented as a capacitive, resistive, photoelectric or electromagnetic sensor, but the embodiment is not limited thereto.

Alternatively, each capacitive sensor may be implemented as a self-capacitance formed by a metal foil that may be affixed to the outer wall of the liquid level storage device or to the side wall of the body of the cleaning apparatus, with a simple structure and at a low cost. There is less parasitic capacitance between the metal foil and ground when no liquid is close. When liquid is close to the pin, the parasitic capacitance changes, and the liquid level height can be detected according to the change of the parasitic capacitance. Of course, in other alternative embodiments, other types of capacitive sensors may be used, and the present embodiment is not limited thereto.

In still other embodiments, for the recycling bin, the liquid level detection device 117 comprises: float valve and motor current detection circuit 117 c. The float valve is arranged in the recycling bin and used for jumping when the liquid level of the recycling bin exceeds a preset second liquid level threshold value.

As shown in fig. 6a, a motor current detection circuit 117c is connected between the main motor 118 of the washer and the treatment system 14, and detects the current flowing through the main motor 118 and supplies the current flowing through the main motor 118 to the treatment system 14. Accordingly, the processing system 14 may determine the fluid level condition within the recovery tank based on the current of the main motor.

Alternatively, as shown in fig. 6b, the motor current detection circuit 117c includes: current sampling circuit 117c 1. Wherein the current sampling circuit 117c1 is electrically connected between the main motor 118 and the processing system 14. Alternatively, as shown in fig. 6a, the current sampling circuit 117c1 includes: a sampling resistor R60 and an RC filter circuit connected with the sampling resistor R60 in parallel; the series connection point of a resistor R59 and a capacitor C29 in the RC filter circuit is electrically connected with the processing system; the sampling resistor R60 is connected between the negative pole M of the main motor 118 and ground. The processing system 14 may collect the voltage across the sampling resistor R60 and determine the state of the liquid level within the recovery tank based on the voltage across the sampling resistor R60.

Alternatively, the processing system may calculate the current flowing through the main motor 118 based on the voltage across the sampling resistor R60; and determines the state of the liquid level in the recovery tank based on the current flowing through the main motor 118. Alternatively, the processing system 14 may calculate the rotation speed of the main motor according to the change frequency of the voltage of the sampling resistor R60; and determines the liquid level state in the recovery tank according to the rotation speed of the main motor 118 and the current power of the main motor 118.

Further, if the voltage of the power supply unit is constant, the processing system 14 may set a fixed current threshold, that is, when the current of the sampling resistor R60 is less than the set current threshold, the float valve is determined to jump, that is, the recycling bin is determined to be in a full level state.

Alternatively, if the power supply unit is a rechargeable battery such as a lithium battery, the voltage of the battery pack gradually decreases as the discharge time increases, and the current of the motor correspondingly decreases. Therefore, the processing system only sets one voltage limit, and the tripping condition of the float valve cannot be effectively judged. For example: if the current threshold is set to be higher, when the voltage of the battery pack is reduced and the floating valve does not jump, the normal working current of the sampling resistor R60 is smaller than the current threshold, and false alarm can occur; or, if the current threshold is set to be low, when the voltage of the battery pack is high, and the current of the sampling resistor R60 after the floating valve has tripped is also greater than the current threshold, no alarm will occur. Based on this, in the embodiment of the present application, a current threshold may be set in each voltage section of the power supply unit, and whether the float valve is tripped, that is, whether the recycling bin is in a full level state may be determined according to the voltage of the power supply unit and the current of the main motor.

Based on the above analysis, as shown in fig. 6c, in the case where the processing system 14 determines the liquid level state in the recovery tank according to the current flowing through the main motor, the washing machine may further include: a power supply unit voltage detection circuit 119, wherein the power supply unit voltage detection circuit 119 is connected between the power supply unit and the processing system 14, and is configured to provide the processing system 14 with the detected voltage of the power supply unit.

Further, the processing system 14, when determining the liquid level state in the recycling bin 17, is specifically configured to: determining a main motor current threshold corresponding to the current voltage of the power supply unit according to the current voltage of the power supply unit and a preset corresponding relation between the voltage of the power supply unit and the main motor current threshold; if the current flowing through the main motor is smaller than the main motor current threshold corresponding to the current voltage of the power supply unit, it is determined that the liquid level state in the recovery tank 117 is a full liquid level.

Optionally, if the power supply voltage is a rechargeable battery such as a lithium battery and the cleaning machine is a constant power absorption, the determination cannot be made effectively by using a common sampling principle. Because the cleaning machine is constantly powered, the current of the main motor is the modulation current and changes periodically. If the acquired data is directly compared with the current threshold set by the processing system, the liquid level state of the recycling bin cannot be accurately determined. Because of current modulation, the sampled data may be a maximum value within a period or a minimum value within a period, and cannot be used as valid data. Based on this, in the present embodiment, the nyquist sampling theorem may be adopted to sample the voltage across the sampling resistor R60. And then, arranging the acquired data from large to small, averaging the first N data to serve as one-time effective data, then making a difference value with the next effective data, and judging the take-off state of the floating valve by using the difference value. Wherein N is not less than 2 and is an integer.

Alternatively, as shown in fig. 6b, the motor current detection circuit 117c further includes: the buffer circuit 117c 2. The buffer circuit 117c2 includes: an operational amplifier chip AR1 and an RC filter circuit. The RC filter is formed by connecting a resistor R63 and a capacitor C30 in series. Further, the non-inverting input terminal IN + of the operational amplifier chip AR1 is electrically connected to the output terminal of the current sampling circuit 117c1, and the inverting input terminal IN-thereof is electrically connected to the output terminal OUT thereof. Further, the RC filter circuit is connected in parallel between the output terminal OUT of the transport amplifier and the ground, and the ungrounded end of the RC filter circuit is electrically connected to the processing system 14. I.e., the series connection of resistor R63 and capacitor C30 in the RC filter circuit, is electrically connected to the processing system 14.

Optionally, as shown in fig. 6b, the embodiment of the present application further provides a main motor driving circuit 118 a. For the structure and the working principle of the main motor driving circuit 118a, please refer to the related contents of the main driving circuit in the water pump driving circuit, which is not described herein again.

Or, in the case that the processing system 14 determines the liquid level state in the recycling bin according to the rotation speed of the main motor 118 and the current power of the main motor 118, the processing system 14 is specifically configured to: judging whether the rotating speed of the main motor 118 in a certain time period of operation under the current power is greater than a rotating speed threshold corresponding to the current power; and if the judgment result is yes, determining that the liquid level state in the recovery barrel is the full liquid level. Wherein, the main motor 118 operating under the current power for a certain period of time means: a period of time counted after the main motor 118 starts operating at the present power for a preset period of time, or a period of time counted from the start of the operation of the main motor 118 at the present power. Wherein, a certain time period can be flexibly set according to the current power of the motor 119. For example, for the case where the current power of the main motor 118 is 90W, the certain period of time may refer to within 1s, within 2s, or within 5s after operating the main motor 118 at the current power of 90W, and so on, but is not limited thereto. For another example, for the case where the current power of the main motor 118 is 120W and 150W, the certain period of time may refer to within 1s after operating the main motor 118 at the current power for 2s, and so on, but is not limited thereto.

For example, in the case that the current power of the main motor 118 is 90W, it may be determined whether the rotation speed within 1s after the main motor 118 is operated for 2s is greater than 50000rpm, and if the determination result is yes, it is determined that the recycling bin 17 is in the full liquid level state; or whether the rotation speed within 5s after the main motor 118 is operated for 2s is more than 48000rpm or not may be judged, and if the judgment result is yes, it is determined that the recycling bin 17 is in the full level state.

For another example, when the current power of the main motor 118 is 120W, it may be determined whether the rotation speed within 1s after the main motor 118 is operated for 2s is greater than 55000rpm, and if the determination result is yes, it is determined that the recycling bin 17 is in the full level state.

For another example, in the case where the current power of the main motor 118 is 150W, it may be determined whether the rotation speed within 1s after the main motor 118 is operated for 2s is greater than 59000rpm, and if the determination result is yes, it is determined that the recycling bin 17 is in the full level state.

For another example, in the case where the current power of the main motor 118 is 90W, 120W, and 150W, it may be determined whether the rotation speed increment within 1s after the main motor 118 is operated for 2s is greater than 4000rpm, and if the determination result is yes, it is determined that the recycling bin 17 is in the full level state.

Further, the main motor 118 is at the present powerThe rotating speed in a certain time period of the lower operation is greater than the rotating speed threshold corresponding to the current power, which may mean that the rotating speeds of the main motor 118 in a certain time period of the lower operation are both greater than the rotating speed threshold corresponding to the current power; it may also mean that the average rotational speed of the main motor 118 operating at the current power for a certain period of time is greater than the rotational speed threshold corresponding to the current power; alternatively, it may also mean that the probability that the rotation speed of the main motor 118 operating at the current power for a certain period of time is greater than or equal to the preset probability threshold value. Optionally, the preset probability threshold is greater than

The following describes an exemplary determination process of the liquid level state of the recycling bin 117 using the rotation speed of the main motor 118 with reference to fig. 6d, and the main determination steps are as follows:

s1: the processing system 14 controls the main motor 118 to operate at 90W of power.

S2: after the main motor 118 is operated at 90W for 2s, it is determined whether the rotational speed of the main motor 118 is greater than the set first rotational speed threshold. If yes, determining that the liquid level state of the recycling bin 117 is a full liquid level, and executing step S7; if the determination result is negative, step S3 is executed.

Optionally, the first speed threshold is 50000 rpm.

S3: it is monitored whether the power of the main motor 118 changes. If yes, go to step S4; if the determination result is negative, step S7 is executed.

S4: after the main motor 118 is operated at the changed power for 2s, it is determined whether the rotation speed of the main motor 118 is greater than a rotation speed threshold value corresponding to the changed power. If yes, determining that the liquid level state of the recycling bin 117 is a full liquid level, and executing step S7; if the determination result is negative, step S5 is executed.

S5: the rotational speed of the main motor 118 is detected in accordance with a set sampling period, and the rotational speed increment in each sampling period is calculated. Alternatively, the sampling period is 0.2s, etc., but is not limited thereto.

S6: judging whether the rotation speed increment in each sampling period is greater than or equal to a preset increment threshold value or not; if yes, determining that the liquid level state of the recycling bin 117 is a full liquid level, and executing step S7; if the determination result is negative, the process returns to step S5.

S7: the processing system 14 controls the second type indicator lights to illuminate or flash and controls the washer to shut down.

In the present embodiment, the processing system 14 may also calculate the current power of the main motor 118 based on the signal parameters of the second PWM signal currently input to the main motor 118.

Further, as shown in fig. 1b and 1c, the at least one display region may further include: and a fourth display area 15d formed of a plurality of second display tubes. In this embodiment, a plurality of second display tubes may display the power of the main motor under the control of the processing system 14. The number of the second display tubes that are lit is positively correlated to the power level of the main motor, i.e., the larger the power of the main motor 118, the larger the number of the second display tubes that are lit.

Alternatively, as shown in fig. 1a and 1c, the fourth display region 15d may be located below the third display region 15 c.

Alternatively, the plurality of second display tubes may be distributed in rows, columns, rings, or in a matrix. Fig. 1a and 1c show only a plurality of second display tubes in a matrix arrangement.

Optionally, the plurality of second display tubes may further include: a high power indicator light and a low power indicator light. The high-power indicator lamp and the low-power indicator lamp are used for indicating that the main motor is currently operated in a high-power state and a low-power state respectively. Accordingly, the processing system 14 may control the high power indicator light to illuminate when the power of the main motor is greater than or equal to the set first power threshold; when the power of the main motor is smaller than or equal to a set second power threshold value, controlling a low-power indicator lamp to be lightened; wherein the first power threshold is greater than the second power threshold.

In an embodiment of the present application, the at least one display area may further include: and a fifth display area 15 e. The fifth display area 15e can display the power of the power supply unit of the washing machine under the control of the processing system 14.

Alternatively, as shown in fig. 1b and 1c, the fifth display region includes: a third sub-area 15e1, formed by a plurality of second digital pipes, for displaying the percentage of the power supply unit's capacity under the control of the processing system 14.

Further, as shown in fig. 7, the fifth display area further includes: a fourth sub-area 15e2 formed by a plurality of third indicator lights having different colors for displaying a color adapted to the power of the power supply unit under the control of the processing system 14. Accordingly, the processing system 14 may determine the brightness of the plurality of third indicator lights according to the power amount of the power supply unit, so that the fourth sub-area presents a color adapted to the power amount of the power supply unit. Alternatively, the processing system 14 may control the indicator lights of the plurality of third indicator lights to be turned on according to the power amount of the power supply unit, so that the fourth sub-area presents a color adapted to the power amount of the power supply unit.

Optionally, the fourth sub-region is located adjacent to the third sub-region. For example, the fourth sub-region may be located to the left of the third sub-region (as shown in fig. 7); alternatively, the fourth subregion may be located above, below or to the right of the third subregion, and so on.

In some embodiments, the fifth display area further comprises: a fifth sub-area 15e3 formed by a plurality of third display tubes for displaying the remaining operating time of the power supply unit. Alternatively, as shown in fig. 7, the fifth sub-region 15e3 may be located in a lower region of the third sub-region 15e1 and the fourth sub-region 15e 2.

Accordingly, the processing system 14 may calculate the remaining operating time of the power supply unit based on the amount of power of the power supply unit; and controlling a plurality of third display tubes to display the remaining working time of the power supply unit according to the working time of the power supply unit.

Alternatively, as shown in fig. 1b and 1c, the display 15 may further include a sixth display area 15f formed by a fourth indicator light for indicating a locked state of the cleaning assembly 13 in case that the cleaning assembly 13 is locked. Alternatively, the processing system 14 may control the fourth indicator light to illuminate or flash when the cleaning assembly 13 is jammed to prompt the user that the cleaning assembly 13 is jammed.

Alternatively, the processing system 14 may detect the current of the cleaning assembly 13 and determine that the cleaning assembly 13 is stalled if the current is greater than or equal to a predetermined current threshold. Further, in the case where a stalling of the cleaning assembly 13 occurs, the fourth indicator light is controlled to be turned on or to flash.

Alternatively, as shown in fig. 1b and 1c, the display 15 may further include a seventh display area 15g formed of a plurality of fourth display pipes for displaying an operating state of the communication assembly of the washing machine. Optionally, the plurality of fourth display tubes are distributed in a scattering arc shape. Wherein the communication assembly is configured to facilitate wired or wireless communication between the washer and other devices. The cleaning machine may have access to a wireless network based on a communication standard, such as WiFi, 2G or 3G, 4G, 5G or a combination thereof. In an exemplary embodiment, the communication component receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component may also be implemented based on Near Field Communication (NFC) technology, Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, or other technologies.

Optionally, the display 15 may also display information such as date, time, brand name, model or user name.

In addition, in the embodiment of the present application, the display 15 may also be a liquid crystal display, an LED display, an OLED display, or the like. Optionally, in this embodiment, the display 15 may also play a continuous animation. For example, but not limited to, instructions for use of the washing machine, notes, troubleshooting instructions, and the like are played on the display 15.

It is worth explaining, the embodiment of displaying the relevant state information of the washing machine in the using process provided by the embodiment of the application is not only suitable for the washing machine, but also suitable for various cleaning devices. Such as, but not limited to, a hand-held cleaner, a window cleaning robot, a floor cleaning robot (both dry and wet), a wall cleaning robot, and the like. Wherein the cleaning apparatus may comprise: the display comprises a body and a display arranged on the body. The display is electrically connected with the processing system and used for displaying relevant state information of the cleaning equipment in the using process; wherein the relevant state information of the cleaning device in the using process comprises at least one of the following: (1) capacity information of the recycling bin; (2) liquid level information of the solution barrel; (3) cleaning degree information of the cleaning object by the cleaning component; (4) power information of the power supply unit; (5) self-cleaning information of the cleaning device; (6) main motor power information; (7) locked rotor information of the cleaning assembly; (8) operational status information of the communication component. Wherein, the capacity information of the recycling bin can be: the used capacity of the recycling bin can also be the still usable capacity of the recycling bin. The volume information of the recycling bin may also be the liquid level information of the recycling bin for the case that the recycling object of the recycling bin is dirty liquid. For the detection of the cleaning degree of the cleaning object, the liquid level information of the solution tank, and the capacity information of the recovery tank, reference may be made to the related contents of the above embodiments, and details are not repeated herein.

The use of the display on different cleaning devices is exemplified below in connection with several common cleaning devices.

Application scenario one

A hand-held cleaner comprising: the air inlet is positioned at the front side of the handheld dust collector, the handle is positioned at the rear side of the handheld dust collector, the machine body is positioned between the air inlet and the handle, and the cyclone separator is positioned inside the machine body. The handheld dust collector further comprises a machine body and a display positioned on the machine body. The display is electrically connected with the processing system and used for displaying relevant state information of the handheld dust collector in the using process; wherein the relevant state information of the cleaning device in the using process comprises at least one of the following: (1) capacity information of the recycling bin; (2) liquid level information of the solution barrel; (3) cleaning degree information of the cleaning object by the cleaning component; (4) power information of the power supply unit; (5) self-cleaning information of the handheld cleaner; (6) main motor power information; (7) stalling information of the floor brush; (8) operational status information of the communication component.

Specifically, the display sets up in cyclone top, sets up in the outside of fuselage, and convenience of customers obtains the display information of display. Under the control of the processing system, the display has a plurality of display areas, each of which is composed of a plurality of LEDs. First display area is the dirt bucket icon of show recycling bin capacity information, can show the capacity information of the recycling bin of hand-held type dust catcher, and if the recycling bin bucket is full, first display area lamp is bright or twinkles, and the capacity of sign recycling bin reaches the predetermined range, needs clearance recycling bin.

The second display area is an arc showing the color and brightness of the cleaning degree information of the floor brush to the floor gradually changes, the cleaning degree information can be displayed, the cleaning degree of the cleaning object is displayed by the processing system through the second display area through detection of the sensor, the cleaning degree of the handheld dust collector to the floor is represented, the more the blue arc is, the cleaner the floor is, the more the red arc is, and the dirtier the floor is.

The third display area is used for displaying the number of the electric quantity information of the power supply unit, displaying the current electric quantity percentage of the battery in real time, and gradually reducing the electric quantity percentage number of the battery along with the reduction of the electric quantity of the battery until the electric quantity is reduced from 100 to 0.

The fourth display area is an icon for displaying self-cleaning information, and when the handheld dust collector is in a self-cleaning state, the self-cleaning icon is lightened or flickers; when the handheld dust collector needs to carry out self-cleaning, the self-cleaning icon is lightened or flickers; and the self-cleaning icon is used for indicating that the dust collector is in a state of reminding that self-cleaning is needed or self-cleaning is carried out.

The fifth display area is a square icon for displaying the power of the motor, and the whole or part of the square icon is in a light-on state and represents different motor powers of the handheld dust collector. When the handheld dust collector is in a highest power state, the square icons are all in a light-on state, and when the power of the motor is in a middle gear, the square icons are partially in a light-on state. The fifth display area represents different motor power gears of the handheld cleaner by the number of lit lights of the square icon.

And the sixth display area is an icon for displaying the rotation blockage of the floor brush. When the handheld dust collector is in the operation process and the floor brush has faults such as locked rotor and the like, the floor brush locked rotor icon of the sixth display area is in a bright lamp or flickering state, and the floor brush is represented to have fault information such as locked rotor and the like.

The seventh display area is an icon for showing the working state of the communication module. When the communication assembly of the handheld dust collector is connected with an external wireless network through an electric signal, for example, the handheld dust collector is connected with the wireless network through WIFI, the icon of the seventh display area is in a light-on state or a flashing state, and the communication assembly of the handheld dust collector is represented to be in a successful distribution network state.

The display of the handheld vacuum cleaner includes the seven display areas, but is not limited thereto, and the display of the handheld vacuum cleaner may also have other display areas for representing the working status information of the vacuum cleaner, such as: date and time, brand, user name, fault, historical accumulated working time, battery charging times, self-cleaning times and the like.

Application scenario two

A sweeping robot comprises a robot body, a moving part at the bottom of the robot body and a display at the top of the robot body, wherein the display is electrically connected with a processing system arranged in the robot body and used for displaying relevant state information of a handheld dust collector in the using process; wherein the relevant state information of the cleaning device in the using process comprises at least one of the following: (1) capacity information of the recycling bin; (2) information on a degree of cleaning of the cleaning object by the floor brush; (3) information of the electric quantity of the battery; (4) self-cleaning information of the sweeping robot; (5) main motor power information; (6) stalling information of the floor brush; (7) operational status information of the communication component.

Particularly, the display is arranged on the outer surface of the top of the machine body, so that a user can conveniently and timely acquire the working state information of the sweeping robot. Under the control of the processing system, the display has a plurality of display areas, each of which is composed of a plurality of LEDs. The first display area represents the capacity information of the recycling bin, the second display area represents the cleaning degree information of the floor brush on the floor, the third display area represents the residual electric quantity information of the battery, the fourth display area represents the self-cleaning information of the floor-sweeping robot, the fifth display area represents the power information of the main motor, the sixth display area represents the stalling information of the floor brush, and the seventh display area represents the information of the network connection state of the floor-sweeping robot. The display of the sweeping robot includes the seven display areas, but is not limited thereto, and the display of the sweeping robot may also have other display areas for representing the working state information of the dust collector, for example: date and time, brand, user name, fault, map of the area to be cleaned of the object to be cleaned, historical cleaning map, historical cleaning times, historical accumulated operating time, battery charging times, self-cleaning times, and the like.

In addition to the above device embodiments, the embodiments of the present application also provide an information display method. The following is an exemplary description with reference to the drawings.

Fig. 8 is a flowchart illustrating an information display method according to an embodiment of the present application. As shown in fig. 8, the method includes:

801. operational status information of at least one component on the cleaning device is obtained.

802. Displaying the operating state information of the at least one component on a display.

In the present embodiment, the cleaning device may be a handheld vacuum cleaner, a window cleaning robot, a floor cleaning robot (dry cleaning or wet and dry cleaning), a wall cleaning robot, and the like, but is not limited thereto. If the cleaning device is a handheld vacuum cleaner, the setting position, shape and implementation form of the display can be referred to the relevant contents of the above embodiments, and details are not repeated herein.

In this embodiment, the operating state information of at least one component includes at least one of: (1) capacity information of the recycling bin; (2) liquid level information of the solution barrel; (3) cleaning degree information of the cleaning object by the cleaning component; (4) power information of the power supply unit; (5) self-cleaning information of the cleaning device; (6) main motor power information; (7) locked rotor information of the cleaning assembly; (8) operational status information of the communication component. The volume information of the recycling bin may also be the liquid level information of the recycling bin for the case that the recycling object of the recycling bin is dirty liquid.

The application of the information display method is exemplified below in conjunction with several common cleaning devices.

Application scenario three

If the cleaning device is a washing machine, the embodiment may provide an information display method on the washing machine, first obtaining the working status information of at least one component on the washing machine, and then displaying the working status information of the at least one component on a display of the washing machine. The operating state information of the plurality of components includes at least one of: (1) capacity information of the recycling bin; (2) information on a degree of cleaning of the cleaning object by the floor brush; (3) information of the electric quantity of the battery; (4) self-cleaning information of the cleaning machine; (5) main motor power information; (6) stalling information of the floor brush; (7) operational status information of the communication component. The information of the working state of the cleaning machine is displayed to a user, so that the user can know the working state and the using state of the cleaning machine in time.

Application scenario four

If the cleaning device is a handheld cleaner, this embodiment may provide an information display method on the handheld cleaner, first obtaining the working status information of at least one component on the handheld cleaner, and then displaying the working status information of the at least one component on the display of the handheld cleaner. The operating state information of the plurality of components includes at least one of: (1) capacity information of the dust bucket; (2) liquid level information of the solution barrel; (3) information on a degree of cleaning of the cleaning object by the floor brush; (4) information of the electric quantity of the battery; (5) self-cleaning information of the handheld cleaner; (6) main motor power information; (7) stalling information of the floor brush; (8) operational status information of the communication component. The information of the working state of the handheld dust collector is displayed to a user, so that the user can know the working state and the using state of the cleaning machine in time. Wherein, the scrubbing brush is the cleaning assembly of hand-held vacuum cleaner, also known as cleaning brush.

In the embodiment of the application, the display is additionally arranged on the cleaning equipment to display the working state information of at least one part on the cleaning equipment, so that the working state of the cleaning equipment can be intuitively displayed. The user can intuitively know the working state of the components on the cleaning device, which is helpful for improving the user experience.

In some embodiments, the display includes at least one display area for displaying operating status information of the different components. Further, as shown in fig. 1b, the at least one display area includes: a first display region formed of a plurality of first display tubes. The first display tube may be an LED, an OLED, a thin film LED, or the like, but is not limited thereto. Accordingly, an alternative implementation of step 801 is: and controlling the first display area to display the cleaning degree information of the cleaning assembly on the cleaning object.

Further, the plurality of first display tubes are different in color. The processing system can control the colors of the plurality of first display tubes to be different when the first display area is controlled to display the cleaning degree information of the cleaning assembly on the cleaning object, and can display the combination of different colors, brightness and shapes under the control of the processing system. Wherein the combination of different colors, brightness and shapes characterize different degrees of cleaning of the cleaning object by the cleaning assembly. For a description of combinations of different colors, luminances and shapes, reference may be made to the related contents of the above embodiments, which are not described herein again.

In some embodiments, the dirty liquid flows from the suction nozzle on the cleaning assembly to the recovery tank through the suction channel, a flow path of the dirty liquid is formed, and a cleanliness detection device is arranged to detect the cleanliness of the cleaning assembly on the cleaning object. Wherein, the cleanliness detection device is partially or completely arranged on a circulation path of the dirty liquid.

In this embodiment, the cleanliness detection device may detect the physical property value of the dirty liquid and supply the physical property value of the dirty liquid to the processing system. Accordingly, the processing system may determine the degree of cleaning of the cleaning object according to the physical property value of the dirty liquid. For specific embodiments of the setting position and the implementation form of the cleanliness detection device and the determination of the degree of cleaning of the cleaning object by the processing system according to the physical property value of the dirty liquid in different implementation forms, reference may be made to the relevant contents of the above embodiments, and details are not described here.

In other embodiments, sensors may be provided that sense the user's behavior during the cleaning task using the cleaning device, taking into account the user's behavior. For example, in some application scenarios, if the degree of contamination of the cleaning object is relatively high, the user tends to increase the effort to clean the cleaning object. On this basis, a pressure sensor can be provided on the handle of the cleaning device. Accordingly, the processing system can determine the cleaning degree of the cleaning assembly to the cleaning object according to the pressure value born by the handle. For specific implementation, reference may be made to relevant contents of the foregoing embodiments, which are not described herein again.

For another example, in other application scenarios, if the contamination level of the cleaning object is relatively high, the user may often clean the cleaning object back and forth. In this application scenario, the cleaning device is driven by the user to change the working direction continuously. Based on this, an acceleration sensor may be provided on the cleaning device. Wherein the acceleration sensor can detect acceleration information of the cleaning device during use and provide the detected acceleration information to the processing system. Accordingly, the processing system may determine a frequency of change of the working direction of the cleaning device based on the acceleration information. Further, the processing system may control the plurality of first display tubes to display the rate of change of the operation direction. Wherein the frequency of the change of the working direction is indicative of the degree of cleaning of the cleaning object by the cleaning assembly.

Furthermore, the processing system can also adjust the working state of the cleaning equipment according to the working direction change frequency of the cleaning equipment. For example, the processing system may adjust the power of the main motor of the cleaning apparatus, the motor of the water pump, and the motor of the cleaning assembly to a power that is adapted to the frequency of the change in the working direction of the cleaning apparatus, and so on, according to the frequency of the change in the working direction of the cleaning apparatus.

In the embodiment of the application, no matter which way is adopted to detect the cleaning degree of the cleaning assembly to the cleaning object, the processing system can adjust the working state of the cleaning device according to the cleaning degree of the cleaning object.

For example, the processing system 14 may adjust the power of the water pump of the cleaning apparatus to a power adapted to the degree of cleaning of the cleaning object according to the degree of cleaning of the cleaning object. Accordingly, the processing system can preset a corresponding relation between the cleanliness class and the power of the water pump, and based on the corresponding relation, the processing system can determine the power of the water pump according to the cleanliness class of the cleaning object. Preferably, the higher the cleaning grade, the lower the power of the water pump, and the smaller the water output of the cleaning device, indicating that the cleaning object is cleaner.

For another example, the processing system may also adjust the power of the main motor and/or the cleaning assembly motor of the cleaning apparatus to a power adapted to the degree of cleaning of the cleaning object according to the degree of cleaning of the cleaning object. Accordingly, the processing system may preset a correspondence between the cleanliness class and the power of the main motor and/or the cleaning assembly motor, based on which the processing system may determine the power of the main motor and/or the cleaning assembly motor according to the cleanliness class of the cleaning object. Preferably, the higher the cleaning grade, the less power the main motor and/or the cleaning assembly motor, and the less water absorbing capacity of the cleaning device, indicates that the cleaning object is cleaner. In the embodiment of the application, the main motor sucks the dirty liquid from the suction nozzle 13a on the cleaning component of the cleaning device and sends the dirty liquid into the recovery barrel of the cleaning device through the suction channel on the cleaning device, and the cleaning component motor drives the cleaning component to clean the cleaning object.

For another example, the processing system may also adjust the task execution time of the cleaning apparatus to a time adapted to the degree of cleaning of the cleaning object according to the degree of cleaning of the cleaning object. Accordingly, the processing system may preset a correspondence between the cleanliness class and the cleaning time, and based on the correspondence, the processing system may determine the cleaning time according to the cleanliness class of the cleaning object. Preferably, the higher the cleaning grade, the less power the main motor and/or the cleaning assembly motor, and the shorter the cleaning time, indicating that the cleaning object is cleaner.

Alternatively, if the processing system determines that the cleaning degree of the cleaning object is up to the standard, the cleaning apparatus may be controlled to stop operating. Wherein, the standard cleaning degree of the cleaning object can be that the cleanliness grade of the cleaning object is the highest cleanliness grade. Alternatively, if the cleanliness class of the cleaning object is the highest cleanliness class, the processing system may control the water pump, the main motor, and/or the cleaning assembly motor to stall, and the like.

Correspondingly, when the processing system adjusts the working state of the cleaning equipment, the signal parameters can be determined according to the cleaning degree of the cleaning object; and a first PWM signal with the signal parameter is input to the water pump driving circuit so as to control the water pump to output water yield meeting the cleaning requirement. Wherein the signal parameters include: the frequency and duty cycle of the first PWM signal.

In this embodiment, the display may also display level information of a liquid storage device of the cleaning apparatus. The at least one display area further comprises: and a third display area. The third display area is used for displaying liquid level information of a liquid storage device of the cleaning equipment. Wherein, the liquid storage device is a solution barrel and/or a recycling barrel.

In this embodiment, the liquid level information of the liquid storage device may be: the level value of the liquid storage device can also be the liquid level state in the liquid storage device. Wherein, the liquid level state in the liquid storage device is as follows: the liquid storage device is in a full liquid level state or a liquid lack state.

The liquid storage device comprises: a solution bucket and a recycling bucket. The at least one second indicator light comprises: a first type indicator light and a second type indicator light. In this embodiment, the processing system controls the first type indicator light to light or flash when the clean liquid in the solution barrel is lower than a set first liquid level threshold value, so as to prompt a user that the solution barrel is in a liquid-lacking state; and when the dirty liquid in the hand recycling bin exceeds a set second liquid level threshold, the second type of indicator lamp is controlled to be lightened or flickered so as to prompt a user that the recycling bin is in a full liquid level state. The first liquid level threshold value is the lowest liquid level of the clean liquid in the solution barrel, and if the clean liquid in the solution barrel is lower than the first liquid level threshold value, the solution barrel is in a liquid-lacking state; the second liquid level threshold is the highest liquid level of the dirty liquid that can be contained in the recycling bin, and if the clean liquid in the recycling bin is higher than the liquid level, the recycling bin is in a full liquid level state. Optionally, the first liquid level threshold is less than the second liquid level threshold. Further, the second liquid threshold is less than or equal to the height of the recovery tank.

Accordingly, the processing system may also calculate a fluid level state of the fluid level storage device based on fluid level information of the fluid in the fluid level storage device. For a specific implementation of the processing system obtaining the liquid level information of the liquid in the liquid level storage device, reference may be made to the relevant contents of the above embodiments, and details are not repeated herein.

In the embodiment of the present application, a transition solution barrel may be further disposed between the solution barrel and the nozzle, and for convenience of description, in the embodiment of the present application, the transition solution barrel is simply referred to as the transition barrel; and the water outlet pipeline between the solution barrel and the transition barrel is defined as a first water outlet pipeline, and the water outlet pipeline between the transition barrel and the nozzle is defined as a second water outlet pipeline. Therefore, the clean liquid in the solution barrel flows into the transition barrel through the first water outlet pipeline and then is sent into the nozzle through the second water outlet pipeline so as to be sprayed onto the cleaning object by the nozzle. Accordingly, the second conductor set is disposed on the flow path of the clean liquid. Optionally, the liquid storage device may also be a transition bucket. Wherein, the liquid level state in the transition barrel can reflect the liquid level state of the solution barrel. That is, if the transition barrel is in a liquid-lacking state, the reactable solution barrel is also in a liquid-lacking state.

In some embodiments, the processing system may determine the fluid level condition within the recovery tank based on the current of the main motor. Optionally, the processing system may calculate the current flowing through the main motor based on the voltage across the sampling resistor; and the liquid level state in the recycling bin is determined according to the current flowing through the main motor.

Further, when the processing system determines the liquid level state in the recycling bin, the processing system can determine a main motor current threshold corresponding to the current voltage of the power supply unit according to the current voltage of the power supply unit and a preset corresponding relationship between the voltage of the power supply unit and the main motor current threshold; and if the current flowing through the main motor is smaller than the current threshold value of the main motor corresponding to the current voltage of the power supply unit, determining that the liquid level state in the recovery barrel is the full liquid level.

Or the processing system can also calculate the rotating speed of the main motor according to the change frequency of the voltage of the sampling resistor; and determining the liquid level state in the recycling bin according to the rotating speed of the main motor and the current power of the main motor.

Further, the processing system can also judge whether the rotating speed of the main motor in a certain time period of operation under the current power is greater than the rotating speed threshold corresponding to the current power; and if the judgment result is yes, determining that the liquid level state in the recovery barrel is the full liquid level.

For the specific implementation of each step in the method embodiment, reference may be made to the related contents of the above device embodiment, and details are not described herein again.

Accordingly, embodiments of the present application also provide a computer-readable storage medium storing computer instructions, which, when executed by one or more processors, cause the one or more processors to perform the steps of the above-mentioned information display method.

It should be noted that the execution subjects of the steps of the methods provided in the above embodiments may be the same device, or different devices may be used as the execution subjects of the methods. For example, the execution subject of

steps

801 and 802 may be device a; for another example, the execution subject of step 801 may be device a, and the execution subject of step 802 may be device B; and so on.

In addition, in some of the flows described in the above embodiments and the drawings, a plurality of operations are included in a specific order, but it should be clearly understood that the operations may be executed out of the order presented herein or in parallel, and the sequence numbers of the operations, such as 801, 802, etc., are merely used for distinguishing different operations, and the sequence numbers themselves do not represent any execution order. Additionally, the flows may include more or fewer operations, and the operations may be performed sequentially or in parallel. It should be noted that, the descriptions of "first", "second", etc. in this document are used for distinguishing different messages, devices, modules, etc., and do not represent a sequential order, nor limit the types of "first" and "second" to be different.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A cleaning machine, comprising: the cleaning device comprises a handle assembly, a machine body, a cleaning assembly, a processing system and a display arranged on the machine body; the display is electrically connected with the processing system and used for displaying the working state information of at least one component on the cleaning machine;

the cleaning machine includes: the water outlet pipeline and the solution barrel are sequentially connected with the nozzle of the cleaning component; the cleaning machine includes: a suction channel and a recovery barrel connected with the cleaning component in sequence; wherein, the dirty liquid on the cleaning object is sucked by the main motor and is sent into the recycling bin through the suction nozzle of the cleaning component and the suction channel;

the display comprises a plurality of display areas, and different display areas are used for displaying the working state information of different components; the plurality of display regions include: a first display area and a second display area;

the cleaning machine further includes: a cleanliness detection device which is partially or entirely provided in a flow path of the dirty liquid and detects a degree of cleaning of the cleaning object by the cleaning unit;

the processing system is used for controlling the first display area to display a combination of color, brightness and shape which is adaptive to the cleaning degree of the cleaning object;

the processing system is also used for starting the self-cleaning function of the cleaning machine and controlling the second display area to be lightened; the second display area is in an illuminated state during use of a self-cleaning function by the cleaning machine; the self-cleaning function means that the cleaning machine automatically cleans the circulation path of the dirty liquid.

2. The washing machine of claim 1, wherein the operational status information of the at least one component further comprises at least one of:

(1) liquid level information of the liquid storage device;

(2) power information of the power supply unit;

(3) main motor power information;

(4) locked rotor information of the cleaning assembly;

(5) operational status information of the communication component.

3. The washing machine as claimed in claim 1, wherein the first display area is formed of a plurality of first display pipes for displaying information on a degree of cleaning of the cleaning object by the cleaning assembly under the control of the processing system.

4. The cleaning machine of claim 3 wherein said first plurality of display tubes are different colors for displaying different combinations of color, brightness and shape under control of said processing system; wherein different combinations of color, brightness and shape characterize different degrees of cleaning of the cleaning object by the cleaning assembly; or,

the plurality of first display tubes are the same color and are used for displaying different shapes and/or brightnesses under the control of the processing system, wherein the different shapes and/or brightnesses represent different cleaning degrees of the cleaning assembly on the cleaning object.

5. The washing machine as claimed in claim 3 wherein the plurality of first display tubes are arranged in an array or distributed along an edge of the display.

6. The cleaning machine of claim 3,

the cleanliness detection device is used for detecting the physical attribute value of the dirty liquid and providing the physical attribute value to the processing system;

the processing system is used for determining the cleaning degree of the cleaning component to the cleaning object according to the physical attribute value.

7. The cleaning machine of claim 1 wherein the processing system is further configured to:

when the time for the cleaning machine to execute the cleaning task on the cleaning object reaches a preset time length, starting a self-cleaning function of the cleaning machine, and controlling the second display area to be lightened;

or detecting that the self-cleaning function control switch is turned on, starting the self-cleaning function of the cleaning machine, and controlling the second display area to be lightened.

8. The washing machine as claimed in claim 1 wherein said plurality of display areas further comprises: and the third display area is used for displaying the liquid level information of the liquid storage device of the cleaning machine.

9. The washing machine as claimed in claim 8 wherein the third display area includes: a first sub-area formed by at least one second indicator light for displaying different liquid level conditions of the liquid storage device under control of the processing system.

10. The washing machine as claimed in claim 9 wherein said at least one second indicator light comprises: a first type indicator light and a second type indicator light;

the first type of indicator light is used for lighting or flashing when clean liquid in a solution barrel of the cleaning machine is lower than a set first liquid level threshold value so as to prompt a user that the solution barrel is in a liquid lack state;

the second type of indicator light is used for lighting or flashing when the dirty liquid in the recycling bin of the cleaning machine exceeds a set second liquid level threshold value so as to prompt the user that the recycling bin is in a full liquid level state;

the first liquid level threshold is less than the second liquid level threshold;

the first type indicator lights and the second type indicator lights are distributed in the same row or in the same column.

11. The washing machine as claimed in claim 8 wherein the third display area further comprises: a second sub-area formed by at least one first nixie tube for displaying a level value of the liquid storage device under control of the processing system.

12. The washing machine as claimed in claim 1 wherein said plurality of display areas further comprises: a fourth display area for displaying the power of the main motor under the control of the processing system; wherein the number of display areas in an illuminated state of the fourth display area is positively correlated with the power level of the main motor.

13. The cleaning machine of claim 12, wherein the fourth display areas are distributed in rows, columns, rings, or in a matrix.

14. The washing machine as claimed in claim 1 wherein said plurality of display areas further comprises: and the fifth display area is used for displaying the electric quantity of the power supply unit of the cleaning machine under the control of the processing system.

15. The washing machine as claimed in claim 14 wherein the fifth display area includes: a third sub-area formed by a plurality of second digital pipes for displaying a percentage of the power amount of the power supply unit under the control of the processing system.

16. The washing machine as claimed in claim 14 wherein the fifth display area further comprises: a fourth sub-area formed by a plurality of third indicator lights having different colors for displaying a color adapted to the power amount of the power supply unit under the control of the processing system.

17. The cleaning machine of claim 1 wherein said display is disposed on the top or front of said body.

18. The cleaning machine of claim 17 wherein the display is disposed above the liquid storage device; or the plane of the display is perpendicular to the axis of the body.

19. The washing machine of claim 17 wherein the display is telescopically disposed on the top or front of the body.

20. A cleaning apparatus, comprising: the display device comprises a machine body and a display arranged on the machine body; the display is electrically connected with the processing system and is used for displaying the working state information of different parts of the cleaning equipment in the using process in different display areas;

the cleaning apparatus includes: the water outlet pipeline and the solution barrel are sequentially connected with the nozzle of the cleaning component; the cleaning apparatus includes: a suction channel and a recovery barrel connected with the cleaning component in sequence; wherein, the dirty liquid on the cleaning object is sucked by the main motor and is sent into the recycling bin through the suction nozzle of the cleaning component and the suction channel;

the working state information of the cleaning equipment in the using process comprises at least one of the following information:

(1) capacity information of the recycling bin;

(2) liquid level information of the solution barrel;

(4) power information of the power supply unit;

(5) self-cleaning information of the cleaning device;

(6) main motor power information;

(7) locked rotor information of the cleaning assembly;

(8) operating state information of the communication component;

wherein the cleaning apparatus further comprises: a cleanliness detection device which is partially or entirely provided in a flow path of the dirty liquid and detects a degree of cleaning of the cleaning object by the cleaning unit;

the display includes a plurality of display areas; the different display areas are used for displaying the working state information of different parts;

the plurality of display regions include: a first display area and a second display area, the processing system further to: starting a self-cleaning function of the cleaning equipment and controlling the second display area to be lightened; the second display area is in an illuminated state during use of a self-cleaning function by the cleaning device; the self-cleaning function is that the cleaning equipment automatically cleans a circulation path of the dirty liquid;

the processing system is further configured to: controlling the first display area to display a combination of color, brightness, and shape adapted to a degree of cleaning of the cleaning object.

21. An information display method, comprising:

displaying the working state information of different parts in different display areas of the display;

(1) capacity information of the recycling bin;

(2) liquid level information of the solution barrel;

(4) power information of the power supply unit;

(5) self-cleaning information of the cleaning device;

(6) main motor power information;

(7) locked rotor information of the cleaning assembly;

(8) operating state information of the communication component;

wherein the cleaning apparatus further comprises: a cleanliness detection device which is partially or completely arranged on a flow path of the dirty liquid and is used for detecting the cleaning degree of the cleaning assembly to the cleaning object;

the display includes a first display area; the method further comprises the following steps:

acquiring the cleaning degree of the cleaning assembly to the cleaning object; and controlling the first display area to display a combination of color, brightness, and shape adapted to the degree of cleaning of the cleaning object;

the display further comprises a second display area; the method further comprises the following steps: starting a self-cleaning function of the cleaning equipment and controlling the second display area to be lightened; the self-cleaning function means that the cleaning equipment automatically cleans a circulation path of the dirty liquid.

22. A computer-readable storage medium having stored thereon computer instructions, which, when executed by one or more processors, cause the one or more processors to perform the steps of the method of claim 21.