CN109238400A - Liquid level detection device, equipment comprising same, liquid level detection method, electronic equipment and computer readable storage medium - Google Patents
Liquid level detection device, equipment comprising same, liquid level detection method, electronic equipment and computer readable storage medium Download PDFInfo
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- CN109238400A CN109238400A CN201810930520.0A CN201810930520A CN109238400A CN 109238400 A CN109238400 A CN 109238400A CN 201810930520 A CN201810930520 A CN 201810930520A CN 109238400 A CN109238400 A CN 109238400A
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- liquid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
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- Power Engineering (AREA)
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- Thermal Sciences (AREA)
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- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The embodiment of the invention relates to a liquid level detection device, equipment comprising the liquid level detection device, a liquid level detection method, electronic equipment and a computer-readable storage medium. The liquid level detection device comprises a detection part and a processing part, wherein the detection part comprises at least one sensor which is arranged at a position corresponding to different liquid levels of the liquid container, and the detection part is isolated from the liquid container; and the processing component is electrically connected with the at least one sensor and is used for determining the liquid level based on the change of the equivalent capacitance formed by the conductive liquid in the liquid container and the at least one sensor. The invention also discloses a corresponding liquid level detection method, a corresponding device and corresponding equipment. The liquid level monitoring scheme provided by the embodiment of the invention realizes indirect liquid level measurement, solves the problem of unsafe electric leakage caused by direct contact measurement, and solves the problem of inconvenient structure disassembly caused by direct contact measurement.
Description
Technical field
Present invention relates in general to control process fields, and in particular to a kind of liquid level detection device and comprising its equipment with
And liquid-level detecting method, electronic equipment and computer readable storage medium.
Background technique
For clothing care machine, electric iron, Garment Steamer Machine and the same manner using liquid water generate vapor product with
And other are required to detect the water in the liquid containers such as water tank, water level in the electrical equipment of water.Existing inspection
Survey technology is usually directly detected in the way of electric signal, buoyancy etc..Detection part is usually and liquid under these detection modes
Container directly contacts, and there are electric leakage hidden danger, and existing product structure is simultaneously inconvenient to the use of liquid container.
Summary of the invention
In view of the above-mentioned problems, the embodiment of the present invention provides a kind of liquid level detection device and equipment and liquid level comprising it
Detection method, electronic equipment and computer readable storage medium are realized and easily and effectively detect liquid level with indirect measure, solve
Direct contact measurement bring electric leakage unsafe problems of having determined and structure are inconvenient to dismantle problem.
In the first aspect of the present invention, a kind of liquid level detection device is provided.The device includes: detection part, including at least
One sensor, at least one sensor are set to the corresponding position of different from liquid container liquid level, detection part and liquid
Body container is mutually isolated；And processing component, it is electrically connected at least one sensor, processing component is based on leading in liquid container
The variation of the equivalent capacity that electro-hydraulic body and at least one sensor are formed determines liquid level.
In certain embodiments, detection part includes the multiple sensors constituted with conductive sheet, and multiple sensors are mutually only
It stands and is electrically connected respectively with processing component.
In certain embodiments, the distance between detection part and liquid container are less than first threshold, so that detection part
It is arranged close to liquid container.
In certain embodiments, device further includes tip parts, and tip parts is electrically connected with processing component, in response to
The instruction of processing component exports prompt information, and instruction is generated based on identified liquid level.
In certain embodiments, processing component calculates the variation for the capacitance of each sensor with each sensing of determination
The positional relationship of device and current liquid, and liquid level is determined based on positional relationship.
In the second aspect of the present invention, a kind of equipment comprising liquid level detection device is provided.The equipment includes: main part
Part, liquid container and described liquid level detection device, liquid container are removably mounted on according to a first aspect of the present invention
On main element, main element is used to support liquid container and receiving or attachment liquid level detection device.
In the third aspect of the present invention, a kind of liquid-level detecting method is provided.This method comprises: obtaining from detection part
Signal, detection part include at least one sensor, and it is opposite that at least one sensor is set to the different liquid levels from liquid container
The position answered, detection part are mutually isolated with liquid container；Based on signal, the conducting liquid and at least one in liquid container is detected
The variation for the equivalent capacity that a sensor is formed；And the variation based on equivalent capacity, determine liquid level.
In certain embodiments, method further includes detecting the presence of liquid container based on signal；And hold in response to liquid
Device is not present, and generates prompt information.
In certain embodiments, detection part includes mutually independent multiple sensors, wherein the change of detection equivalent capacity
Change includes: to calculate the capacitance characterization value for being directed to each sensor, capacitance characterization value based on the signal from each sensor
Capacitance size is characterized with time signal；And by capacitance characterization value compared with predetermined threshold, with each sensor of determination with
The positional relationship of current liquid；And wherein determine that liquid level includes: by comparing, to determine the position of each sensor and current liquid
Set relationship；And liquid level is determined based on positional relationship.
In certain embodiments, method further include: based on identified liquid level, generate prompt information.
In certain embodiments, method further include: in response to liquid level more than first threshold, generation indicating liquid is excessive to be mentioned
Show information；And it is lower than second threshold in response to liquid level, generate the very few prompt information of indicating liquid.
In the fourth aspect of the present invention, a kind of electronic equipment is provided, including processor and the memory for being stored with instruction, is referred to
Order promotes electronic equipment to execute described method according to a third aspect of the present invention when being executed by processor.
In the fifth aspect of the invention, a kind of computer readable storage medium is provided, machine readable instruction is stored with,
Instruction makes machine execute described method according to a third aspect of the present invention when being executed by machine.
The level sensing scheme that the embodiment of the present invention proposes is realized and detects liquid level with indirect measure, not only facilitates
Effectively, and security performance is improved.
Detailed description of the invention
Fig. 1 shows liquid level detection device according to an embodiment of the present invention can be in the schematic diagram for the scene wherein applied；
Fig. 2 shows the schematic diagrames of the specific example of liquid level detection device according to an embodiment of the invention；
Fig. 3 shows the schematic diagram of the equipment of liquid level detection device according to an embodiment of the invention；And
Fig. 4 shows the schematic block diagram of detection liquid level method according to an embodiment of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.But as known to those skilled in the art, the invention is not limited to attached drawings and following reality
Apply example.
As described herein, term " includes " and its various variants are construed as open-ended term, it means that " packet
It includes but is not limited to ".Term "based" is construed as " being based at least partially on ".Term " one embodiment " it is understood that
For " at least one embodiment ".Term " another embodiment " is construed as " at least one other embodiment ".
As previously mentioned, there are safety risks for existing level sensing mode, and existing product structure holds liquid
The use of device is simultaneously inconvenient.The liquid level detection device and its detection method that the embodiment of the present invention proposes can effectively solve above-mentioned ask
Topic.The embodiment of the present invention is further described with reference to the accompanying drawing.
Fig. 1 shows liquid level detection device according to an embodiment of the present invention can be in the schematic of the scene 100 wherein applied
Block diagram.As shown, including liquid level detection device 110 and liquid container 120 in scene application, the two can be by non-conductive
Shell or air are mutually isolated.120 unilateral side of liquid container can be the face of non-regular shape, as shown, it can also be with certainly
It is the container of regular shape.When scene 100 is to be applied to clothing care machine, Garment Steamer Machine or electric iron etc., liquid container 130 can
To store the liquid water for being used to generate steam, highest liquid level Lmax and minimum liquid level Lmin can have.
Liquid level detection device 110 includes detection part 130 and processing component 140, and detection part 130 includes at least one sense
Device is surveyed, such as sensor 131-137 is shown in figure.These sensors, which are set, is located at liquid level phases different from liquid container 120
Corresponding position, to sense the position Lx of liquid in liquid container 130.
Processing component 140 can be any component appropriate comprising processing function, such as micro-control unit (MCU) etc..
Processing component 140 reads the signal of detection part 130, and realizes the level sensing of liquid container 120, that is, determines current level.
Detection part 130 is electrically connected by appropriate ways such as conducting wires with processing component 140.When sensor is multiple, such as test section
Part 130 includes 6 sensor 131-137, and each sensor is electrically connected with processing component 140 independently of each other.
In accordance with an embodiment of the present disclosure, conducting liquid, such as water are loaded in liquid container 120.Sensor 131-137 is
Electric conductor, such as sheet metal etc..Fig. 2 shows specifically showing for liquid level detection device 110 according to an embodiment of the invention
The schematic diagram of example.As shown, detection part 130 includes independent segmented sensor 210-216.Sensor 210-216 can be with
It is simple sheet metal, it might even be possible to use and be easy available pcb board.It is any to generate capacitor, the independent conductive part of segmentation
Part is all feasible as detection part.
It, can be equivalent at capacitor for electronics since conducting liquid and sensor are by plastic shell or air insulated
Device.The number of amount of liquid will lead to the electric capacitance change of capacitor in liquid container 120.The change is detected by processing component 140
Change, and judges liquid level by calculating.Detailed process will be described below.
Liquid level detection device 110 can also include tip parts (not shown).Tip parts can be with 140 electricity of processing component
Connection exports prompt information for the instruction in response to processing component 140.The instruction is generated based on identified liquid level.It mentions
Show that information can export in the form of various visions, the sense of hearing, tactile etc. are appreciable, causes the attention of user.
Fig. 3 shows the signal of the equipment 300 according to an embodiment of the invention including liquid level detection device 110
Figure.As shown, equipment 300 include main element 310 and liquid container 120, wherein liquid container 120 removedly with main body
Component 310 couples.Main element 310 also accommodates or is attached liquid level detection device 110 other than supporting liquid container 120.With can
The mode of removal arranges liquid container 120, and solving direct contact measurement bring structure is inconvenient to safety of dismantling and leak electricity
Hidden danger etc..
In the present embodiment, detection part 130 and the inner wall of main element 210 fit closely, i.e., spacing 220 preferably connects
It is bordering on zero.This spacing, which is also denoted as negative value namely detection part 130, can be set in the outer wall of main element 210.It is another
Aspect, the spacing 221 between detection part 130 and liquid container 120 is smaller more excellent, is, for example, less than 20 millimeters.It is limited to liquid
The configuration design of container body component 210 and liquid container 120, spacing 221 can be less than such as 30 millimeters.By this method, when
When liquid level changes, it is more advantageous to the variation for detecting capacitance.
It is appreciated that equipment 200 is only a specific example of the embodiment of the present invention, each component is not limited to as shown in the figure
Structure can show as any appearance appropriate and structure according to concrete application.In addition, the sensor number of detection part 130
Amount can also be selected according to practical application.
Fig. 4 shows the schematic block diagram of detection liquid level method 400 according to an embodiment of the invention.Method 400 can
To be realized at processing component 140.410, the signal from detection part is obtained.As previously mentioned, detection part 130 includes extremely
A few sensor, sensor be set to from the corresponding position of different liquid levels of conducting liquid in liquid container 120, and examine
It surveys component 130 and liquid container 120 is mutually isolated.Processing component 140 obtains the signal of sensor by electrical connection acquisition in real time.
According to one embodiment of present invention, processing component 140, which can detecte, judges whether liquid container 120 is still deposited
, i.e., whether from main element 210 remove or liquid container 120 in whether have liquid.The judgement can easily be based on one
The variation of the signal of a (or multiple) sensor and know in real time, processing component 140 can generate prompt information in turn.
420, based on the signal from detection part, the equivalent electricity that conducting liquid and at least one sensor are formed is calculated
The variation of appearance.Then 430, the variation based on equivalent capacity determines liquid level.According to an embodiment of the invention, the precision of liquid level
It is influenced by sensor quantity.In addition, not needing accurate measurement liquid level in commonly used, it is only necessary to according to corresponding liquid level
Shelves judge.Therefore, for the simplicity of realization, liquid level can be represented with liquid level shelves corresponding with sensor.
In one embodiment, according to the difference of capacitance charge and discharge time, time signal table is converted by capacitance
Sign.Thus, it is possible to know the signal of capacitance corresponding to the liquid of unit liquid level shelves in time, such as the arteries and veins of 1ms in advance
Rush width.Processing component 140 can obtain the variation of equivalent capacity and calculating or detecting sensor corresponding pulse change,
And then obtain liquid level.
There are in the embodiment of multiple sensors, processing component 140 can be according to the signal of each sensor, individually
Calculate the relative capacity amount for being directed to each sensor.For example, based on capacitance corresponding to the liquid of liquid level shelves in time
Signal comparison, judge that the sensor is located on or below liquid level, and then will be in the first sensor institute under liquid level
The position of corresponding liquid container is determined as liquid level.
In one embodiment, processing component 140 generates different prompt informations according to liquid level 440.For example, can give birth to
At the information of liquid level, or working as liquid level is more than first threshold (such as Lmax), generates the excessive prompt information of indicating liquid, and
When liquid level is lower than second threshold (such as Lmin), the very few prompt information, etc. of generation indicating liquid.
By using the indirect mode level sensing scheme of the embodiment of the present invention, not only easy to detect, liquid container is more just
In user's operation, and detection part is not directly contacted with liquid and the hidden danger that causes to leak electricity, while not by the shadow of device structure shape
It rings.
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored with machine readable instruction, refers to
Order makes machine execute method having thus described the invention when being executed by machine.
It will be understood by those skilled in the art that in flow charts indicate or logic described otherwise above herein and/or
Step may be embodied in and appoint for example, being considered the order list of the executable instruction for realizing logic function
In what computer-readable medium, for instruction execution system, device or equipment (such as computer based system including processor
System or other can be from instruction execution system, device or equipment instruction fetch and the system executed instruction) use, or combine this
A little instruction execution systems, device or equipment and use.For the purpose of this specification, " computer-readable medium " can be it is any can be with
Include, store, communicate, propagate, or transport program is for instruction execution system, device or equipment or in conjunction with these instruction execution systems
System, device or equipment and the device used.
The more specific example (non-exhaustive list) of computer-readable medium include the following: there are one or more wirings
Electrical connection section (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium because can then be edited for example by carrying out optical scanner to paper or other media, interpret or when necessary with
Other suitable methods are handled electronically to obtain described program, are then stored in computer storage.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
More than, embodiments of the present invention are illustrated.But the present invention is not limited to above embodiment.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (13)
1. a kind of liquid level detection device characterized by comprising
Detection part, including at least one sensor, at least one described sensor are set to liquid levels different from liquid container
Corresponding position, the detection part and the liquid container are mutually isolated；And
Processing component is electrically connected at least one described sensor, and the processing component is based on the conduction in the liquid container
The variation of the equivalent capacity that liquid and at least one described sensor are formed determines liquid level.
2. the apparatus according to claim 1, which is characterized in that the detection part includes the multiple senses constituted with conductive sheet
Device is surveyed, the multiple sensor is mutually indepedent and is electrically connected respectively with the processing component.
3. the apparatus according to claim 1, which is characterized in that the distance between the detection part and the liquid container
Less than first threshold, so that the detection part is arranged close to the liquid container.
4. the apparatus according to claim 1, which is characterized in that it further include tip parts, the tip parts and the place
Component electrical connection is managed, exports prompt information for the instruction in response to the processing component, described instruction is based on identified liquid
Position and generate.
5. the apparatus of claim 2, which is characterized in that the processing component calculates the capacitor for being directed to each sensor
The variation of amount determines liquid level with the positional relationship of determination each sensor and current liquid, and based on the positional relationship.
6. a kind of equipment comprising liquid level detection device characterized by comprising main element, liquid container and according to power
Benefit requires liquid level detection device described in any one of 1-5, and the liquid container is removably mounted on the main element,
The main element is used to support the liquid container and receiving or the attachment liquid level detection device.
7. a kind of liquid-level detecting method characterized by comprising
The signal from detection part is obtained, the detection part includes at least one sensor, at least one described sensor
It is set to the corresponding position of different from liquid container liquid level, the detection part and the liquid container are mutually isolated；
Based on the signal, the equivalent electricity that conducting liquid and at least one described sensor in the liquid container are formed is detected
The variation of appearance；And
Based on the variation of the equivalent capacity, liquid level is determined.
8. the method according to the description of claim 7 is characterized in that further include:
Based on the signal, detecting the liquid container whether there is；And
It is not present in response to the liquid container, generates prompt information.
9. the method according to the description of claim 7 is characterized in that the detection part includes mutually independent multiple sensings
Device, wherein the variation of detection equivalent capacity includes:
Based on the signal from each sensor, the capacitance characterization value for being directed to each sensor, the capacitance characterization are calculated
Value characterizes capacitance size with time signal；And
By the capacitance characterization value compared with predetermined threshold, with the positional relationship of determination each sensor and current liquid；
And wherein determine that liquid level includes:
By the comparison, the positional relationship of each sensor and current liquid is determined；And
Liquid level is determined based on the positional relationship.
10. the method according to the description of claim 7 is characterized in that further include:
Based on identified liquid level, prompt information is generated.
11. the method according to the description of claim 7 is characterized in that further include:
It is more than first threshold in response to the liquid level, generates the excessive prompt information of indicating liquid；And
It is lower than second threshold in response to the liquid level, generates the very few prompt information of indicating liquid.
12. a kind of electronic equipment, which is characterized in that including processor and the memory for being stored with instruction, described instruction is by institute
Stating when processor executes promotes the electronic equipment to execute method according to any one of claims 7-11.
13. a kind of computer readable storage medium, which is characterized in that it is stored with machine readable instruction, described instruction by
The machine makes the machine execute method according to any one of claims 7-11 when executing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810930520.0A CN109238400A (en) | 2018-08-15 | 2018-08-15 | Liquid level detection device, equipment comprising same, liquid level detection method, electronic equipment and computer readable storage medium |
| PCT/CN2018/110285 WO2020034381A1 (en) | 2018-08-15 | 2018-10-15 | Liquid level detection apparatus and device containing same, liquid level detection method, electronic device and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810930520.0A CN109238400A (en) | 2018-08-15 | 2018-08-15 | Liquid level detection device, equipment comprising same, liquid level detection method, electronic equipment and computer readable storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109238400A true CN109238400A (en) | 2019-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810930520.0A Pending CN109238400A (en) | 2018-08-15 | 2018-08-15 | Liquid level detection device, equipment comprising same, liquid level detection method, electronic equipment and computer readable storage medium |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109238400A (en) |
| WO (1) | WO2020034381A1 (en) |
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| CN110274660A (en) * | 2019-07-29 | 2019-09-24 | 珠海格力电器股份有限公司 | Liquid amount detection method, device and system and household appliance |
| CN111360014A (en) * | 2019-09-04 | 2020-07-03 | 添可智能科技有限公司 | Cleaning apparatus, control method thereof, and storage medium |
| WO2021042230A1 (en) * | 2019-09-02 | 2021-03-11 | Texas Instruments Incorporated | Container disturbance filtering for capacitive liquid level sensing |
| CN112545318A (en) * | 2020-11-27 | 2021-03-26 | 深圳数联天下智能科技有限公司 | Water quantity detection method and steam oven |
| CN114645441A (en) * | 2020-12-17 | 2022-06-21 | 广州视源电子科技股份有限公司 | Clothes nursing machine |
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