CN116076845A - Method and device for dynamically adjusting working parameters of blower based on dTOF and blower - Google Patents

Abstract

The invention provides a method for dynamically adjusting working parameters of a blower based on dTOF, a device thereof and the blower, wherein the blower is provided with a dTOF module, and the method for adjusting the working parameters of the blower comprises the following steps: emitting detection light in response to operation of the blower; receiving reflected light of the detection light reflected by the target object; detecting an emission time of emitting the detection light and a reception time of receiving the reflected light; obtaining a flight time according to the emission time of the detection light and the receiving time of the reflected light; calculating the real-time distance of the target object according to the flight time and the light speed; and adjusting an operating parameter of the blower based on the real-time distance to adjust the output. The technical scheme of the invention effectively solves the problem that the blower cannot intelligently adjust the wind power and the temperature.

Description

Method and device for dynamically adjusting hair dryer operating parameters based on dToF, and hair dryer

technical field

The invention relates to the technical field of hair dryers, in particular to a method for dynamically adjusting the working parameters of a hair dryer based on dToF, a device thereof, and a hair dryer.

Background technique

Most of the hair dryers on the market are gear-adjustable, and the output cannot be adjusted smoothly and stably according to the user's needs. However, the existing laser and infrared hair dryers based on distance adjustment have no specific intelligent adjustment method. They can only simply adjust the output size based on the distance, and they are not sensitive enough to achieve real-time adjustment.

Contents of the invention

The invention provides a dToF-based method for dynamically adjusting working parameters of a hair dryer, a device thereof, and a hair dryer to realize intelligent adjustment output based on distance.

In the first aspect, an embodiment of the present invention provides a method for dynamically adjusting the working parameters of a hair dryer based on dToF, the hair dryer is provided with a dToF module, wherein the method for dynamically adjusting the working parameters of the hair dryer based on dToF includes:

emitting detection light in response to the blower being operated;

receiving reflected light from the detected light reflected by the target object;

detecting the emission time of the detection light and the reception time of the reflected light;

Obtaining a time-of-flight according to the emission time of the detected light and the reception time of the reflected light;

Calculate the real-time distance of the target object according to the flight time and the speed of light; and

Adjusting the working parameters of the blower according to the real-time distance to adjust the output.

Optionally, before emitting the detection light, the method for dynamically adjusting the working parameters of the hair dryer based on dToF also includes:

When receiving the setting instruction, emit the reference detection light and obtain the current corresponding working parameters of the hair dryer;

receiving the reference reflected light reflected by the target object from the reference detection light;

Obtaining a time-of-flight according to the emission time of the reference detection light and the reception time of the reference reflection light;

Calculate the reference distance according to the flight time and the speed of light;

According to the reference distance and the current corresponding working parameters as reference parameters; wherein, adjusting the working parameters of the hair dryer according to the real-time distance to adjust the output includes: according to the numerical relationship between the reference distance and the real-time distance and the The reference parameter adjusts the numerical value of the working parameter in real time.

Optionally, the working parameters include one or more of a wind speed parameter used to adjust the output wind speed, a temperature parameter used to adjust the output temperature, a power parameter used to adjust the output power, and a wind direction parameter used to adjust the wind direction By.

Optionally, adjusting the numerical value of the working parameter in real time according to the numerical relationship between the reference distance and the real-time distance and the reference parameter includes:

determining the adjustment coefficient according to the ratio of the real-time distance to the reference distance; and

The working parameter is adjusted according to the adjustment coefficient and the reference parameter.

Optionally, the adjustment coefficient is a ratio of the real-time distance to the reference distance, and adjusting the working parameters according to the adjustment coefficient and the reference parameter includes:

The working parameter is obtained according to a product operation result of the adjustment coefficient and the reference parameter.

Optionally, the method for dynamically adjusting the working parameters of the hair dryer based on dToF also includes: and

When a lock command is received, the current operating parameters are locked to keep the output constant.

Optionally, the reference parameter is a default reference parameter, and before adjusting the working parameter of the blower according to the real-time distance to adjust the output, the method for dynamically adjusting the working parameter of the blower based on dToF further includes:

When the start instruction is received, the blower is operated under the reference parameter and output.

In the second aspect, the embodiment of the present invention also provides a device for dynamically adjusting the working parameters of the hair dryer based on dToF, including: a dToF module, a control module and a processing module, wherein,

The dToF module is communicatively connected with the control module, including:

an emitting unit, configured to emit detection light;

a receiving unit, configured to receive reflected light reflected from the detection light;

A control module, configured to send an adjustment instruction to the dToF module to control the emitting unit to emit detection light, and control the receiving unit to receive the reflected light reflected by the target object from the detection light;

The processing module is communicatively connected with the dToF module and the control module, including:

a detection unit, configured to detect the emission time when the emission unit emits the detection light, and the reception time when the reception unit receives the reflected light;

a first calculation unit, configured to obtain a time-of-flight according to the emission time of the detected light and the reception time of the reflected light;

The second calculation unit is used to calculate the real-time distance of the target object according to the flight time and the speed of light; and

An adjustment unit, configured to adjust the working parameters of the hair dryer according to the real-time distance to adjust the output.

In the third aspect, the embodiment of the present invention also provides a hair dryer, the hair dryer includes a hair dryer body and a dToF module, and the hair dryer further includes:

memory for storing computer program instructions; and

The processor is configured to execute the stored computer program instructions to realize the above-mentioned method for dynamically adjusting the working parameters of the hair dryer based on dToF.

Optionally, the hair dryer body further includes a casing, a heating assembly and a blowing assembly, the heating assembly, the blowing assembly, the memory and the processor are arranged in the casing, and the casing is provided with The air outlet, the dToF module is arranged on the housing, the dToF module includes a light receiving and receiving surface, the detection light and reflected light are emitted and received from the light receiving and receiving surface, and the light receiving and receiving surface is connected to the light emitting and receiving surface. The tuyere is set in the same direction.

The above dToF-based method for dynamically adjusting the working parameters of the hair dryer, its device, and the hair dryer use the dToF component to emit detection light and receive reflected light emitted by the target object to calculate the flight time to determine the real-time distance of the target object, thereby adjusting the hair dryer according to the real-time distance Working parameters to adjust the output, and then realize the intelligent adjustment of the hair dryer output based on the distance. The whole adjustment process does not need manual control, the operation is simple and the power utilization rate is high, and it can also avoid damage to the target object due to the high temperature of the hair dryer when the distance is too close , higher security.

Further, the reference distance and corresponding reference parameters are obtained by setting instructions; then the detection light is emitted and the reflected light is received by adjusting instructions, and the real-time distance is calculated according to the flight time of the two, and the relationship between the real-time distance and the reference distance and the reference parameters Adjust the working parameters to adjust the output, so that the hair dryer can be adjusted based on different standards, making it more precise and comfortable to use.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative effort.

FIG. 1 is a flow chart of a method for dynamically adjusting working parameters of a hair dryer based on dToF provided by an embodiment of the present application.

Fig. 2 is a first sub-flow chart of the method for dynamically adjusting the working parameters of the hair dryer based on dToF provided by the embodiment of the present application.

Fig. 3 is a second sub-flow chart of the method for dynamically adjusting the working parameters of the hair dryer based on dToF provided by the embodiment of the present application.

Fig. 4 is a third sub-flow chart of the method for dynamically adjusting the working parameters of the hair dryer based on dToF provided by the embodiment of the present application.

Fig. 5 is a fourth sub-flow chart of the method for dynamically adjusting the working parameters of the hair dryer based on dToF provided by the embodiment of the present application.

FIG. 6 is a schematic structural diagram of a device for adjusting working parameters of a hair dryer provided in an embodiment of the present application.

Fig. 7 is a schematic structural diagram of the hair dryer provided by the embodiment of the present application.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of this application and the above drawings are used to distinguish similar planning objects and do not necessarily Used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances; in other words, the described embodiments are practiced in sequences other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof may also include other contents, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to only those explicitly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

It should be noted that the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and should not be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features . Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present invention.

Please refer to FIG. 1 , which is a flowchart of a method for dynamically adjusting working parameters of a hair dryer based on dToF provided by an embodiment of the present application. The hair dryer is provided with a dToF module, and the dToF module includes an optical transmitter and an optical receiver. The method for adjusting the working parameters of the hair dryer comprises the following steps:

Step S101, emitting detection light in response to the hair dryer being in operation.

Specifically, when it is detected that the blower is turned on or in a working state, the dToF module is controlled to emit detection light, more specifically, the light emitter of the dToF module emits detection light. In a general scenario, when a user uses a hair dryer to face the hair, the detection light is directed at the user's head. Understandably, in some other scenarios, for example, the user is blowing hair for others, such as a parent blowing hair for a child, or a barber blowing hair for a customer, in these scenarios, the user may also pre-adjust the output of the hair dryer to Suitable state, that is, let the wind blown by the hair dryer have a better body feeling. In this scenario, the user may also point the hair dryer at other target objects (for example, the user's hand) to experience in advance whether the output of the hair dryer is appropriate.

In a specific embodiment, there is still a certain distance between the light emitter and the actual air outlet. However, after each actual product is produced, the position of the light emitter and the position of the air outlet are relatively fixed. Part of the distance can be subtracted in a targeted manner to obtain the position of the object relative to the air outlet. Therefore, the description in this article about using the optical transmitter to obtain the relative distance of the air outlet is to obtain the relative distance after a single product is sampled and tested according to the actual product, and the relative distance of the object is obtained by subtracting the relative distance from the distance of the object relative to the optical transmitter. The distance of the air outlet.

Step S102, receiving reflected light from the detection light reflected by the target object.

Specifically, the detected light is reflected by the user's head or other target objects to form reflected light, and the reflected light enters the dToF module and is received by the light receiver.

Step S103, detecting the emission time of the detection light and the reception time of the reflected light.

Specifically, the optical receiver in this application uses a single photon avalanche diode (SPAD). A single photon avalanche diode is a photodetection avalanche diode with single photon detection capability, which converts the analog optical signal into a recognizable digital Signal. The system uses single-photon avalanche diodes to record the moment of light arrival as a time parameter.

In step S104, the flight time is obtained according to the emission time of the detected light and the reception time of the reflected light.

Specifically, the emission time is the instant when the light transmitter emits light; the reception time is the instant when the reflected light is reflected from the target object back to the light receiver. The flight time is obtained by subtracting the transmit time from the receive time.

Step S105, calculating the real-time distance of the target object according to the flight time and the speed of light.

Specifically, since there is only air between the hair dryer and the target object, the real-time distance of the target object can be calculated according to the flight time and the speed of light flying in the air. The real-time distance d is calculated by the following formula: d=c*t/2, wherein, c is the light speed of the detected light, and t is the flight time.

Specifically, the real-time distance to the target object obtained by using the dToF module is the distance from the dToF module to the target object, but the adjustment parameters of the hair dryer are based on the air outlet, that is, there is also a distance between the air outlet and the dToF module A certain error occurs. Therefore, the real real-time distance is obtained by subtracting the relative horizontal distance from the air outlet to the dToF module from the real-time distance obtained by the dToF module to the target object.

Step S106, adjusting the working parameters of the hair dryer according to the real-time distance to adjust the output.

Specifically, the blower automatically adjusts working parameters according to the real-time distance, for example, the blower adjusts output temperature and/or air volume according to the real-time distance.

In summary, the dToF component can calculate the real-time distance from the outlet of the hair dryer to the target object by emitting detection light and receiving the reflected light, and then dynamically adjust the working parameters of the hair dryer according to the real-time distance. By dynamically adjusting the working parameters of the hair dryer in real time, The effect of intelligent adjustment of the hair dryer is realized. The whole adjustment process does not require manual control. The operation is simple and the utilization rate of electric energy is high. It can also avoid the damage of the hair or scalp and other target objects due to the high temperature of the hair dryer when the distance is too close, and the safety is high.

Please refer to FIG. 2, which is the first sub-flow chart of the method for dynamically adjusting the working parameters of the hair dryer based on dToF provided by the embodiment of the present application, and specifically includes the following steps:

Step S202, when the setting instruction is received, emit the reference detection light and obtain the current corresponding working parameters of the hair dryer.

Specifically, when the setting instruction is received, the reference detection light is emitted, and the current working parameters of the hair dryer are obtained, and the current distance and the current working parameters are bound as a reference measurement value, that is, a reference value is obtained through the setting instruction. The reference distance and the reference parameter are a measurement value. The hair dryer does not have a fixed gear for output adjustment, but adjusts the output after real-time calculation based on the real-time distance and measurement value. That is, when the user initially uses or wants to adjust the output, he can send a setting instruction by pressing a button to set a reference distance and reference parameters.

For example, the user presses the button to issue a setting command, and sets the air outlet distance obtained by the current dToF component, such as 10cm, as the reference distance and 50% output. When switching to other modes later, the adjustment is based on 10cm and 50% output as the calculated benchmark value. For example, there is an embodiment that the hair dryer includes a constant wind speed arrival mode. When the hair dryer is in the constant wind speed wind speed mode, when the air outlet of the hair dryer moves to a distance of 5 cm from the target object, the output is adjusted to 25% to maintain a constant wind speed. Press the button again to issue a setting command to adjust the reference distance to 20cm and 50% output, then when the air outlet of the hair dryer moves to 10cm from the target object, the output is adjusted to 25% to maintain a constant wind speed.

It should be noted that, considering that there is a fixed distance difference between the dToF component and the air outlet of the hair dryer, when determining the real-time distance or reference distance from the air outlet to the target object, it is necessary to subtract the dToF mode from the distance calculated according to the flight time and the speed of light. Set the distance to the air outlet to get the real-time or reference distance from the air outlet of the hair dryer to the target object.

Step S204, receiving reference reflected light that is reflected back from the target object by the reference detection light.

Step S206, obtaining a reference time of flight according to the emission time of the reference detection light and the reception time of the reference reflected light.

Step S208, calculating the reference distance according to the reference flight time and the speed of light.

Specifically, the process of calculating the reference distance in this embodiment is basically the same as the process of calculating the real-time distance of the detected light, and no redundant description is given here. In step S210, according to the reference distance and the current corresponding working parameter as the reference parameter, the numerical value of the working parameter is adjusted in real time according to the relationship between the reference distance and the real-time distance and the reference parameter.

For example, if the reference distance from the air outlet to the target object is 10cm and the reference parameter is 50% output, when the user moves the air outlet of the hair dryer to the real-time distance of 20cm, the hair dryer will divide the real-time distance by the reference distance to get a multiple of 2, and then Multiply the 50% output of the reference parameter by a multiple of 2 to get 100% to achieve the purpose of adjustment. It should be noted that the numerical values listed here are for illustration only, and do not limit specific implementation parameters.

Optionally, the working parameters include one or more of a wind speed parameter for adjusting the output wind speed, a temperature parameter for adjusting the output temperature, a power parameter for adjusting the output power, and a wind direction parameter for adjusting the wind direction.

That is to say, the hair dryer of the present application combines the selected mode with the reference distance to generate the judgment basis of the system, and adjusts the output of the hair dryer in real time according to the real-time distance under the specification of the judgment basis. For example, after turning on the hair dryer, the user senses the wind speed and temperature by hand or other means such as a thermometer, and selects the setting command, based on the current distance and working parameter settings. The advantage of the reference obtained by this method is that the wind speed and temperature blown to the target distance can be the temperature and wind speed required by the user through the hand or other methods such as temperature sensing and other more sensitive sensing methods. In addition, under some strict conditions, external equipment can also be used to accurately measure the specific distance and the specific temperature at the time of arrival to meet specific needs.

To sum up, through manual sensing and external devices such as temperature sensors, the actual temperature required by the user can be measured appropriately or accurately. In the scenes such as the care of infants, the elderly and pregnant women, the maintenance of precious items, etc., which have high requirements for temperature and wind speed, the working parameters required by the user and the corresponding target distance can be obtained through setting instructions. Based on the hair dryer During use, the working parameters are automatically adjusted so that each real-time distance has a corresponding wind speed and temperature with the same effect.

Please refer to FIG. 3 , which is the second sub-flow chart of the method for dynamically adjusting the working parameters of the hair dryer based on dToF provided by the embodiment of the present application. Specifically, the working parameters include working wind speed parameters, and the reference parameters include reference wind speed parameters. In step S106, adjusting the numerical value of the working parameter in real time according to the numerical value relationship between the reference distance and the real-time distance and the reference parameter includes the following steps:

Step S302, determining the adjustment coefficient according to the ratio of the real-time distance to the reference distance.

Specifically, the real-time distance is divided by the reference distance to obtain the adjustment coefficient, and the corresponding working parameter of the reference distance is used as the reference parameter, and the real-time output working parameter is adjusted in a certain proportion according to the adjustment coefficient on the reference parameter.

Step S304, adjusting the working parameters according to the adjustment coefficient and the reference parameter.

Optionally, the adjustment coefficient is the ratio of the real-time distance to the reference distance, and the working parameter is obtained according to the product operation result of the adjustment coefficient and the reference parameter.

Specifically, the reference wind speed parameter is used as an initial value for adjustment, and the working wind speed parameter is adjusted so that the wind force when reaching the real-time distance is consistent with the wind force when reaching the reference distance based on the reference wind speed parameter.

In actual production, the adjustment method can be proportional adjustment, that is, every time the distance percentage increases by a certain percentage, the working wind speed parameter will increase by the corresponding percentage; the proportional coefficient adjustment is to obtain a coefficient table according to the experiment, and according to the value of the distance percentage, from the table Obtain the corresponding proportional coefficient; the method used is determined according to actual needs. According to this method, the hair dryer can adjust the working parameters in real time according to the actual situation of being far away from or close to the target object, which improves the user experience and ensures the consistency of wind speed, temperature and other effects when the target object is reached during use.

In this embodiment, the hair dryer includes multiple adjustment modes, and the multiple adjustment modes include one or more monotone modes and one overall adjustment mode. The hair dryer works on one adjustment mode at a time. Among them, a monotonic mode is used to adjust a set of operating parameters in the hair dryer. The total adjustment mode is used to adjust all operating parameters in the hair dryer. Each group of parameters adjusts an output attribute of the hair dryer. For example, the output attribute of the hair dryer includes multiple attributes such as wind speed, temperature, or power. Among them, a variety of adjustment modes can be selected through the setting button, touch screen or smart terminal with corresponding APP software installed.

It can be understood that the adjustment of the output of the hair dryer mainly involves the adjustment of the two properties of wind speed and temperature. Therefore, during specific implementation, the working parameters include a first set of working parameters for adjusting the wind speed and a second set of working parameters for adjusting the temperature.

Correspondingly, the hair dryer includes three adjustment modes, and the three adjustment modes include one or more monotone modes and one overall adjustment mode. Each monotonic mode is used to correspondingly adjust the first group of working parameters or the second group of working parameters, that is to say, the hair dryer can only adjust the wind speed or temperature in a monotonic mode. The general adjustment mode can adjust the first group of working parameters and the second group of working parameters at the same time, that is to say, the hair dryer can adjust the wind speed or temperature in a monotonic mode.

Correspondingly, a selection button is provided on the hair dryer to select different adjustment modes. For example, the hair dryer is provided with three buttons for the user to operate to select one of the adjustment modes. Specifically, one button is operated to select the monotone mode for adjusting the wind speed, one button is operated for selecting the monotone mode for adjusting the temperature, and one button is operated for selecting the general mode. It can be understood that the hair dryer can also only be provided with two buttons for the user to select an adjustment mode. Two buttons are operated at the same time to select the master mode.

In this embodiment, since the wind speed and temperature can be adjusted separately or at the same time, that is to say, when adjusting the working parameters of the hair dryer according to the real-time distance, this embodiment further provides the user with different adjustment modes, and the hair dryer can be adjusted according to the user's choice. Adjust the mode to adjust the wind speed and/or temperature, so that the hair dryer can work in various modes, and it is easier to apply to different users or scenarios.

Please refer to FIG. 4 , which is the third sub-flow chart of the method for dynamically adjusting the working parameters of the hair dryer based on dToF provided by the embodiment of the present application. Specifically, the reference parameter is a default reference parameter. Before performing step S106, the method for dynamically adjusting the working parameters of the hair dryer based on dToF also includes the following steps:

Step S402, when the start instruction is received, make the blower work under the reference parameter and output.

Specifically, the hair dryer is started with default reference parameters after receiving the start instruction. That is, after the hair dryer is turned on, the hair dryer works with the default reference parameters, and the user can change the working mode of the hair dryer through various instructions. For example, the user chooses to initiate the setting command to obtain the reference distance and reference parameters; and then chooses to initiate the adjustment command to adjust the working parameters in real time based on the reference distance and reference parameters to adjust the output, so that both or one of the wind speed and temperature can reach The temperature and wind speed of the target object are kept consistent with the reference parameters when reaching the reference distance. Wherein, various types of instructions can be generated by setting a button on the hair dryer respectively or by a combination of multiple buttons.

Please refer to FIG. 5 , which is the fourth sub-flow chart of the method for dynamically adjusting the working parameters of the hair dryer based on dToF provided by the embodiment of the present application. After step S106 is executed, adjusting the size of the working parameter based on the reference parameter also includes the following steps:

Step S502, when the locking instruction is received, the current working parameters are locked to keep the output constant.

Specifically, when the lock command is received, the dToF module is turned off, so that the working parameters of the hair dryer are locked to the current working parameters, so that the output heat and wind speed remain unchanged. Wherein, the locking instruction can be generated by setting a button on the hair dryer. In this way, when the user obtains a more comfortable output during the use of the hair dryer, he can operate the button to lock the working parameters of the hair dryer. That is to say, in the process of using the hair dryer, the user can adjust the hair dryer to a suitable output without being limited by the reference distance and reference parameters. Therefore, in this embodiment, the hair dryer can be adapted to users with different somatosensory.

Based on the same inventive concept, please refer to FIG. 6 , which is a schematic structural diagram of a device for adjusting the power of a hair dryer provided by an embodiment of the present invention. A device for dynamically adjusting working parameters of a hair dryer based on dToF. The device 2000 for dynamically adjusting working parameters of a hair dryer based on dToF includes: a control module 101 , a processing module 102 and a dToF module 103 . The dToF module 103 includes a transmitting unit 1031 and a receiving unit 1032 . The processing module 102 includes a detection unit 1021 , a first calculation unit 1022 , a second calculation unit 1023 and an adjustment unit 1024 .

The dToF module 103 is communicatively connected with the control module.

The emitting unit 1031 is configured to emit detection light.

The receiving unit 1032 is configured to receive reflected light reflected back from the detection light.

The control module 101 is configured to send an adjustment command to the dToF module 103 to control the transmitting unit 1031 to emit detection light, and control the receiving unit 1032 to receive the reflected light reflected by the target object from the detection light.

The processing module 102 is configured to process light information of detected light and reflected light.

Specifically, when the hair dryer is working, the dToF module emits detection light, more specifically, the light emitter emits detection light. In a general scenario, when a user uses a hair dryer to face the hair, the detection light is directed at the user's head. Understandably, in some other scenarios, for example, the user is blowing hair for others, such as a parent blowing hair for a child, or a barber blowing hair for a customer, in these scenarios, the user may also pre-adjust the output of the hair dryer to Suitable state, that is, let the wind blown by the hair dryer have a better body feeling. In this scenario, the user may also point the hair dryer to other objects (for example, the user's hand) to experience whether the output of the hair dryer is appropriate.

Specifically, the detected light is reflected by the user's head or other objects to form reflected light, and the reflected light enters the dToF module.

The detection unit 1021 is configured to detect the emission time of the dToF module detection light and the reception time of the reflected light.

Specifically, the optical receiver in the detection unit 1021 uses a single-photon avalanche diode (SPAD), which is a photodetection avalanche diode with single-photon detection capability, and converts the analog optical signal into a recognizable Digital signal. The system uses single-photon avalanche diodes to record the moment of light arrival as a time parameter.

The first calculation unit 1022 is configured to obtain the flight time according to the emission time of the detected light and the reception time of the reflected light.

Specifically, the emission time is the time from the light transmitter to the hair or blowing object, and the receiving time is the time when the light is reflected from the hair or the blowing object back to the light receiver.

The second calculation unit 1023 is configured to calculate the real-time distance of the target object according to the flight time and the speed of light.

Specifically, since there are usually no multiple media but air between the blower and the object, the second calculation unit 1023 can calculate the real-time distance of the target object according to the flight time and the speed of light flying in the air.

The adjustment unit 1024 is configured to adjust the working parameters of the hair dryer according to the real-time distance to adjust the output.

In summary, the dToF component can calculate the real-time distance from the hair dryer to the target object by emitting detection light and receiving the reflected light, and then dynamically adjust the working parameters of the hair dryer according to the real-time distance. By realizing the dynamic adjustment of the working parameters of the hair dryer, the effect of intelligent adjustment of the hair dryer is realized.

Based on the same inventive concept, please refer to FIG. 7 , which is a schematic structural diagram of a hair dryer provided in an embodiment of the present application.

The hair dryer 1000 includes a hair dryer body 200 and a dToF module 100, and the hair dryer 1000 also includes:

The memory 300 is used for storing computer program instructions.

The processor 400 is configured to execute stored computer program instructions to implement the above-mentioned method for dynamically adjusting the working parameters of the hair dryer based on dToF.

In some embodiments, the hair dryer body 200 includes a housing 201, a heating assembly 202 and an air blowing assembly 203, the heating assembly 202, the air blowing assembly 203, the memory 300, and the processor 400 are arranged in the housing 201, and the housing 201 is provided with an air outlet 2011 , the dToF module 100 is arranged in the casing 201, the dToF module 100 includes an optical transceiver surface 1001, and the detection light and reflected light are emitted and received from the optical transceiver surface 1001, and the optical transceiver surface 1001 and the air outlet 201 are arranged in the same direction, that is, the optical transceiver surface The direction of emitting light toward the target object is consistent with the direction of the air outlet, and the direction of the detection light emission is consistent with the direction of blowing by the hair dryer, which is convenient for detecting the distance between the air outlet and the target object such as hair or scalp.

In the above-mentioned embodiment, the time of flight is calculated by using the dToF component to emit detection light and receive the reflected light emitted by the target object to determine the real-time distance of the target object, thereby adjusting the working parameters of the hair dryer according to the real-time distance to adjust the output, thereby realizing the The intelligent adjustment of the hair dryer output of the distance, the whole adjustment process does not need manual control, the operation is simple and the power utilization rate is high, and it can also avoid the damage to the target object due to the high temperature of the hair dryer when the distance is too short, and the safety is high.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

The above-listed are only preferred embodiments of the present invention, which certainly cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims (10)

1. A method for dynamically adjusting an operating parameter of a blower based on dtofs, the blower being provided with a dtofs module, the method comprising:

emitting detection light in response to operation of the blower;

receiving reflected light of the detection light reflected by the target object;

detecting an emission time of the detection light and a reception time of the reflected light;

obtaining a flight time according to the emission time of the detection light and the receiving time of the reflected light;

calculating the real-time distance of the target object according to the flight time and the light speed; and

and adjusting the working parameters of the blower according to the real-time distance to adjust the output.

2. The method of dynamically adjusting blower operating parameters based on dtofs of claim 1, further comprising:

when a setting instruction is received, transmitting reference detection light and acquiring the current corresponding working parameters of the blower;

receiving reference reflected light reflected by the reference detection light through the target object;

obtaining flight time according to the emission time of the reference detection light and the receiving time of the reference reflected light;

calculating a reference distance according to the flight time and the light speed;

taking the current corresponding working parameter as a reference parameter according to the reference distance; wherein adjusting the operating parameters of the blower to adjust the output according to the real-time distance comprises: and adjusting the numerical value of the working parameter in real time according to the numerical value relation between the reference distance and the real-time distance and the reference parameter.

3. A method of dynamically adjusting blower operating parameters based on dtofs as recited in claim 1 or 2, wherein the operating parameters include: one or more of a wind speed parameter for adjusting an output wind speed, a temperature parameter for adjusting an output temperature, and a power parameter for adjusting an output power, a wind direction parameter for adjusting a wind direction.

4. The method of dynamically adjusting an operating parameter of a blower based on dtif of claim 2, wherein adjusting the magnitude of the operating parameter in real time based on the magnitude relationship of the reference distance and the real-time distance and the reference parameter comprises:

calculating according to the ratio of the real-time distance to the reference distance to obtain the adjustment coefficient;

and adjusting the working parameters according to the adjustment coefficients and the reference parameters.

5. The method of dynamically adjusting an operating parameter of a blower based on dtif as recited in claim 4, wherein the adjustment factor is a ratio of the real-time distance to the reference distance, and adjusting the operating parameter based on the adjustment factor and the reference parameter comprises:

and obtaining the working parameter according to the product operation result of the adjustment coefficient and the reference parameter.

6. The method of dynamically adjusting blower operating parameters based on dtofs of claim 1, further comprising:

when a lock instruction is received, the current operating parameters are locked to keep the output constant.

7. The method of dynamically adjusting blower operating parameters based on dtofs of claim 2, wherein the baseline parameter is a default baseline parameter, the method of dynamically adjusting blower operating parameters based on dtofs prior to adjusting blower operating parameters based on the real-time distance to adjust output, further comprising:

when an on command is received, the blower is operated under the reference parameters and output.

8. A device for dynamically adjusting an operating parameter of a blower based on dtofs, comprising: a dTOF module, a control module and a processing module, wherein,

the dTOF module is in communication connection with the control module and comprises:

an emission unit for emitting detection light;

the receiving unit is used for receiving the reflected light reflected by the detection light;

the control module is used for sending an adjusting instruction to the dTOF module so as to control the transmitting unit to transmit detection light and control the receiving unit to receive reflected light of the detection light reflected by a target object;

the processing module is in communication connection with the dTOF module and the control module, and comprises:

a detection unit configured to detect an emission time of the emission unit emitting the detection light and a reception time of the reception unit receiving the reflected light;

a first calculation unit for obtaining a time of flight according to the emission time of the detection light and the reception time of the reflected light;

the second calculation unit is used for calculating the real-time distance of the target object according to the flight time and the light speed; and

and the adjusting unit is used for adjusting the working parameters of the blower according to the real-time distance so as to adjust the output.

9. A blower, the blower comprising a blower body and a dtif module, the blower further comprising:

a memory for storing computer program instructions; and

a processor for executing the stored computer program instructions to implement the method of dynamically adjusting blower operating parameters based on dtofs as recited in any one of claims 1-7.

10. The blower of claim 9, wherein the blower body further comprises a housing, a heating assembly, and a blower assembly, the heating assembly, the blower assembly, the memory, and the processor are disposed in the housing, the housing is provided with an air outlet, the dtif module is disposed in the housing, the dtif module comprises a light receiving and emitting surface, the detection light and the reflected light are emitted and received from the light receiving and emitting surface, and the light receiving and emitting surface is disposed in a same direction as the air outlet.

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