WO2024051581A1

WO2024051581A1 - Control method for air blowing device, and air blowing device

Info

Publication number: WO2024051581A1
Application number: PCT/CN2023/116374
Authority: WO
Inventors: 杨飞飞; 凌学凤; 柳志康; 周文凯; 张昊强; 刘萍; 刘娇; 王文权
Original assignee: 添可智能科技有限公司
Priority date: 2022-09-10
Filing date: 2023-08-31
Publication date: 2024-03-14

Abstract

Provided are a control method for an air blowing device, and an air blowing device. The method comprises: acquiring environmental state information of an air blowing environment, which is tested by an environment testing unit (S701); determining reference operation parameters of an air blowing device according to the environmental state information, and controlling the air blowing device to perform an air blowing operation on the basis of the reference operating parameters (S702); acquiring air-return state information of return air of an air blowing object, which is tested by an air-return testing unit when the air blowing device performs the air blowing operation on the basis of the reference operation parameters (S703); and adjusting the reference operation parameters according to the air-return state information, and controlling the air blowing device to perform the air blowing operation on the basis of the adjusted operation parameters (S704). By means of the control method for an air blowing device, it can be ensured that operation parameters of the air blowing device are dynamically adjusted after the temperature and humidity in an air blowing environment change, thereby improving the comfort, and preventing an air blowing object from being damaged.

Description

Control method of blowing equipment and blowing equipment

This application is required to be submitted to the China Patent Office on September 22, 2022, with the application number 202211160772.2 and the Chinese patent application titled "Control method of blowing equipment, blowing equipment and blowing system" and submitted to China on September 10, 2022. Patent Office, the priority of the Chinese patent application with application number 202211106268.4 and the application title "Working method of hair drying equipment, hair drying equipment, hair drying system and storage medium", the entire contents of the aforementioned two Chinese patent applications are incorporated by reference in in this application.

Technical field

The present application relates to the technical field of blowing equipment, and more specifically, to a control method of a blowing equipment and a blowing equipment.

Background technique

A hair dryer is an electrical appliance that can dry wet hair, clothing and other hair drying objects. Common hair dryers include hair dryers, wall-mounted hair dryers, etc.

At the same temperature, a higher wind speed can more easily take away the moisture on the object being blown. At the same wind speed, a higher temperature can more easily accelerate the evaporation of moisture on the object being blown. If the blowing equipment operates at high wind speed and high temperature, Under such conditions, the hair drying efficiency can reach the highest level.

Technical solutions

Embodiments of the present application provide a control method for a blowing device and a blowing device.

In a first aspect, embodiments of the present application provide a method for controlling a blowing device. The blowing device is provided with an air inlet channel connected to the blowing environment. An environment detection unit is provided in the air inlet channel. The environment detection unit is used to detect the blowing environment. The environmental state of the air blowing equipment; the blowing part of the blowing equipment is provided with a return air channel that collects the return air from the blowing object when the blowing equipment performs the blowing operation. A return air detection unit is provided in the return air channel. The return air detection unit is used to detect the return air from the blowing object. The return air state of the wind; the control method of the blowing equipment includes:

Obtain the environmental status information of the blowing environment detected by the environmental detection unit; determine the baseline working parameters of the blowing equipment based on the environmental status information, and control the blowing equipment to perform blowing operations based on the baseline working parameters; obtain the return air detection unit to perform blowing based on the baseline working parameters of the blowing equipment During operation, the return air status information of the return air of the blowing object is detected; based on the return air status information, the baseline working parameters are adjusted, and the blowing equipment is controlled to perform the blowing operation based on the adjusted working parameters.

In a second aspect, embodiments of the present application also provide a blowing device. The blowing device is provided with an air inlet channel connected to the blowing environment. An environment detection unit is provided in the air inlet channel. The environment detection unit is used to detect the environment of the blowing environment. status; the blowing part of the blowing equipment is provided with a return air channel that collects the return air from the blowing object when the blowing equipment performs the blowing operation. A return air detection unit is provided in the return air channel. The return air detection unit is used to detect the return air from the blowing object. Return air status;

The blowing device also includes a memory and a processor. The memory is used to store computer programs. The computer programs are processed by the processor. When executed, it is used to implement the control method of any blowing device provided by the embodiment of the present application.

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features, objects and advantages of the application will become apparent from the description, drawings and claims.

Description of the drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of the blowing equipment provided in the embodiment of the present application;

Figure 2 is a schematic diagram of the assembly structure of the hair care nozzle attachment and the device body provided in the embodiment of the present application;

Figure 3 is a schematic structural diagram of the hair care nozzle attachment provided in the embodiment of the present application;

Figure 4 is a schematic structural diagram of the care box provided in the embodiment of the present application;

Figure 5 is another structural schematic diagram of the blowing device provided in the embodiment of the present application;

Figure 6 is a rear view of the blowing device provided in the embodiment of the present application;

Figure 7 is a schematic flow chart of the control method of the blowing equipment provided in the embodiment of the present application;

Figure 8 is a schematic diagram of an adjustment curve of the target heating wire power provided in the embodiment of the present application;

Figure 9 is a schematic circuit diagram of the zero-crossing detection unit provided in the embodiment of the present application;

Figure 10 is another structural schematic diagram of the blowing equipment provided in the embodiment of the present application;

Figure 11 is a color adjustment schematic diagram for adjusting the luminous color of the ring light strip according to the return air humidity detection value provided in the embodiment of the present application;

Figure 12 is another schematic flow chart of the control method of the blowing equipment provided in the embodiment of the present application;

Figure 13 is a schematic diagram of the relationship between the hair blowing time and the reference time provided in the embodiment of the present application;

Figure 14 is another schematic diagram of the relationship between the hair blowing time and the reference time provided in the embodiment of the present application;

Figure 15 is a functional module schematic diagram of the blowing device provided in the embodiment of the present application.

Implementation Mode of this Application

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of this application.

Embodiments of the present application provide a control method for a blowing device and a blowing device, which will be described in detail below.

First, the present application provides a control method for a blowing equipment. The execution subject of the control method of the blowing equipment may be a processor, or a blowing equipment, a server device, a physical host or a user equipment (UE) that integrates the processor. ) and other different types of devices, in which the processor can be implemented in hardware or software, Specifically, UE can be a terminal device such as a smartphone, a tablet, a laptop, a handheld computer, or a desktop computer.

The hair drying device in the embodiment of the present application can work in different working modes, such as cold air mode, quick drying mode, smart mode, hair care mode, etc., thereby realizing hair drying operations in different modes.

The control method of the hair drying equipment can be applied to hair drying equipment such as hair dryers and wall-mounted hair dryers to perform blowing operations on hair drying objects such as hair and clothing.

Please refer to Figure 1. Figure 1 is a schematic structural diagram of a blowing device provided in an embodiment of the present application. The blowing device can be provided with an air inlet channel 201 connected to the blowing environment, and an environment detection unit can be provided in the air inlet channel 201. 202, the environment detection unit 202 can be used to detect the environmental state of the blowing environment.

It can be understood that the blowing device may include a blowing part 10 and a handheld part 20 connected to the blowing part 10. The blowing part 10 and the handheld part 20 may be fixedly connected or hinged to facilitate storage of the blowing device.

The air inlet channel 201 can be provided on the blowing part 10 or on the handheld part 20 .

The blowing part 10 can be provided with a return air channel 101. The return air channel 101 can be used to collect the return air from the blowing object when the blowing equipment is performing a blowing operation. The return air channel 101 can be provided with a return air detection unit 102. The return air can be The detection unit 102 may be used to detect the return air state of the air returned from the blowing object in the return air channel 101 .

Since the blowing equipment is based on the principle of air drying for blowing objects, the front end of the blowing part 10 can be provided with the air outlet end 103 of the blowing equipment, and the rear end of the blowing part 10 can be provided with the air inlet end 104 of the blowing equipment. A main blowing channel for air flow can be formed between the air end 104 and the air outlet end 103 .

If the air inlet channel 201 in the embodiment of the present application is provided on the air blowing part 10, the air inlet channel 201 may refer to the part of the main air blowing channel close to the air inlet end 104. At this time, the environment detection unit 202 in the air inlet channel 201 may It is installed close to the air inlet end 104 to detect the environmental state of the blowing environment. The working components of the blowing equipment may include a fan 302. The fan 302 may be disposed inside the blowing part 10, such as in the main blowing channel. When the fan 302 is operating, the external ambient air can be sucked into the blowing part 10 through the air inlet end 104. The external ambient air forms an airflow in the main blowing channel and flows to the air outlet end 103. It is blown out through the air outlet end 103 and acts on the object to be blown, evaporating the moisture on the object to achieve the blowing operation.

In the embodiment of the present application, the fan 302 can use a high-speed brushless and sensorless motor. It can be understood that the high speed here is relative to the fan speed of ordinary hair drying equipment. That is to say, the fan 302 in this embodiment The rotational speed is higher than that of the fan of ordinary hair drying equipment. In different application scenarios, the rotational speed of the fan 302 can be different. The sampling speed of the fan 302 is controlled in a closed loop to achieve precise control of the air volume output.

It can be understood that in order to accelerate the evaporation of water on the blowing object, the working components of the blowing equipment may also include a heating wire 301. The heating wire 301 may be disposed in the main blowing channel. The heating wire 301 may heat the air flow in the main blowing channel. , the heated air flows out through the air outlet 103 and acts on the object to be blown, which can quickly evaporate the water on the object to be blown.

In the embodiment of this application, the maximum power of the heating wire 301 can be set to 1200W. The heating wire 301 can also be equipped with a high-temperature fuse protection component to achieve high-temperature protection. The heating wire 301 can be connected to a silicon-controlled device. The silicon-controlled device Can The output power of the heating wire 301, that is, the heating power, is adjusted according to the pulse width modulation (Pulse Width Modulation, PWM) signal output by the processor.

Since the fan 302 and the heating wire 301 are provided in the main blowing channel, if the air inlet channel 201 is provided on the blowing part 10, which is the part of the main blowing channel close to the air inlet end 104, then the blowing equipment will be re-opened during operation or within a short time after operation. work, since the fan 302, the heating wire 301 and the environment detection unit 201 are located in the same channel, the fan 302 and the heating wire 301 can easily affect the accuracy of the environmental status detected by the environment detection unit 202, making the detected environmental status information different from the actual environmental status. There are large errors in the information. Therefore, in some embodiments of the present application, the air inlet channel 201 may be provided on the handheld portion 20 .

At this time, the air inlet of the air inlet channel 201 can be disposed along the outer surface of the handheld portion 20 , the air inlet channel 201 can extend from the air inlet into the handheld portion 20 , and the environment detection unit 202 can be close to the air inlet of the air inlet channel 201 It is configured so that the environment detection unit 202 can contact the external environment and detect the environmental state of the blowing environment.

It can be understood that the environmental status information of the blowing environment can be information such as environmental humidity, environmental temperature, etc. The environment detection unit 202 can be any existing temperature sensor and humidity sensor or a temperature and humidity sensor integrated with a temperature sensor and a humidity sensor. There is no specific limit here.

The air inlet of the return air channel 101 can be disposed at the front end of the blowing part 10. The return air channel 101 can extend from the air inlet to the air inlet of the fan 302. When the fan 302 is operating, affected by the negative pressure, the front end of the blowing part 10 is in contact with the air inlet. The air flow that has been in contact with the blowing object, that is, the return air from the blowing object, can be sucked into the air inlet of the fan 302 through the air inlet of the return air channel 101. The return air detection unit 102 is provided in the return air channel 101 and can detect the air that has been in contact with the blowing object. The airflow is the return air state of the blowing object's return air.

It can be understood that the return air channel 101 can be disposed on at least one side of the main blowing channel, and the air inlet direction of the return air channel 101 is opposite to the air outlet direction of the main blowing channel, so that the airflow that has been in contact with the blowing object can enter the return air. channel 101, so that the return air detection unit 102 provided in the return air channel 101 can detect the return air state of the blowing object.

It can be understood that the return air status information of the blowing object can be return air humidity, return air temperature and other information, and the return air detection unit 102 can be any existing temperature sensor and humidity sensor or a temperature sensor integrated with a temperature sensor and a humidity sensor. Humidity sensor, specific details are not limited here.

As shown in Figure 1, in some embodiments, the blowing device may also include a distance detection unit 105. The distance detection unit 105 may be disposed at the air outlet end 103 of the air blowing part 10 for detecting the distance between the air outlet end 103 and the blowing object. The distance between surfaces. The distance detection unit 105 may include any one or more existing distance sensors, such as laser ranging sensors, infrared ranging sensors, radar ranging sensors or detection devices integrated with distance sensors. Specifically, There are no restrictions anywhere.

When the blowing equipment is working, air nozzles with different functions, such as styling air nozzles, hair care air nozzles, etc., can be installed on the air outlet end 103 to achieve different air outlet effects. However, the air nozzles may block distance detection after installation. Unit 105, the distance detection unit 105 that is blocked will not work properly.

Therefore, in some embodiments of the application, in order to avoid the air nozzle blocking the distance detection unit 105, the distance detection unit 105 of the blower device can be set to at least two, and each distance detection unit 105 can be independently electrically connected to the processor. And the connection between each two distance detection units 105 does not pass through the center point of the air outlet end 103 .

Each distance detection unit 105 can detect independently, that is, as long as one distance detection unit 105 detects the blowing object, the processor can determine the distance between the air outlet end 103 and the blowing object based on the distance value detected by the distance detection unit 105 . distance.

Further, the distance detection unit 105 may include a transmitting area and a receiving area. The connection between the transmitting area of each distance detecting unit 105 and the transmitting area of another distance detecting unit 105 does not pass through the center point of the air outlet end; each The connection between the receiving area of the distance detection unit 105 and the receiving area of another distance detection unit 105 does not pass through the center point of the air outlet end 103 . In this way, no matter what angle the air nozzle rotates to, the air nozzle cannot block the transmitting area and receiving area of the two distance detection units 105 at the same time. That is, there is always one distance detection unit 105 that will not be blocked, and at least one distance detection unit 105 can work properly to ensure that the blower equipment can be used normally.

In the above embodiment, when there are at least two distance detection units 105 detecting normally, the processor will receive at least two distance detection values or distance signals. Since the user may shake the blowing device back and forth when using the blowing device, causing the blower to blow. The equipment has different blowing angles, resulting in inconsistent distance detection values detected by each distance detection unit 105 . If the processor controls the working status of the fan 302 and the heating wire 301 based on each distance detection value, the air outlet speed and temperature of the air blowing device may be confusing, resulting in a poor user experience.

In order to avoid the above situation, in some embodiments of the present application, a correction circuit may be provided on the processor. The correction circuit may be electrically connected to the distance detection unit 105. The correction circuit may be used to correct at least two distance detection values into one distance. The detection value allows the processor to determine the working status of the fan 302 and the heating wire 301 based on the corrected distance detection value. The methods by which the correction circuit corrects the distance detection value include but are not limited to the following methods:

In a specific implementation, the correction circuit may randomly select one distance detection value from the at least two received distance detection values and upload it to the processor.

In another specific implementation, the correction circuit may select a smaller distance detection value from the at least two received distance detection values and upload it to the processor.

In yet another specific implementation, the correction circuit can also calculate an average of at least two received distance detection values, and upload the average to the processor.

It should be noted that the correction circuit can be used as an independent component or integrated on the processor.

The hair drying device in the embodiment of the present application is configured with a hair care mode. Therefore, as shown in Figure 2, in some embodiments of the present application, the hair drying device may also include a hair care nozzle accessory 70 and an accessory detection unit 109. The accessory detection unit 109 can be disposed on the device body for detecting whether the hair care nozzle accessory 70 is installed on the device body.

Specifically, the hair care nozzle accessory 70 may include a receiving cavity, which may contain volatile hair care active substances, such as hair care essential oils. The hair care nozzle accessory 70 may be magnetically attached to the device body. After disassembling the connection, when it is necessary to use volatile hair care active substances to protect the hair of the hair-drying object, the hair care nozzle attachment 70 can be installed on the device body, and the hair care active substances in the accommodation cavity can be volatilized by the flowing wind. On the blowing object.

Since the hair care actives need to be replenished after being used for a certain period of time, in order to facilitate the replenishment of the hair care actives, this application In an embodiment, the hair care nozzle attachment 70 may include a hair care nozzle body 701 and a care box 702 adapted to the hair care nozzle body 701. Volatile hair care actives may be contained in the care box 702, and the care box 702 may contain volatile hair care active substances. The air nozzle body 701 may include a receiving cavity, and a care box 702 containing hair care actives may be disposed in the containing cavity. The care box 702 may be used as a consumable product. When the hair care actives in the care box 702 are used up, , the hair care active substances can be replenished by replacing the care box 702.

The care box 702 can be connected to the hair care nozzle body 701 through magnetic attraction, buckle and other connection methods. The hair care nozzle body 701 can be provided with a strong magnet (not shown in the figure), and the air outlet end 103 of the blowing part 10 An iron ring 106 of the machine body that cooperates with the strong magnet can be provided, so that when the hair care nozzle body 701 is close to the air outlet end 103 of the blower portion 10, it can be adsorbed and fixed on the blower portion 10.

In the embodiment of the present application, the accessory detection unit 109 can be disposed at the air outlet end 103 of the blower part 10, and the accessory detection unit 109 is used to detect whether the hair care nozzle accessory 70 is installed on the blower part 10. The accessory detection unit 109 can Including any existing magnetic field sensor, such as Hall sensor, current sensor, etc.

When the accessory detection unit 109 detects that the hair care nozzle accessory 70 is installed on the hair dryer 10 , the corresponding accessory detection signal can be sent to the processor to indicate that the hair care nozzle accessory 70 has been installed on the hair dryer 10 .

Please refer to Figure 3. Figure 3 is a schematic structural diagram of the hair care nozzle accessory provided in the embodiment of the present application. The bottom of the hair care nozzle body 701 is provided with a strong magnet 4011, and the bottom of the care box 702 is provided with a strong magnet 4011. The matching iron ring 4021 can be adsorbed and fixed in the accommodation cavity of the hair care nozzle body 701 when the care box 702 is close to the hair care nozzle body 701 .

Since the flowing wind ejected from the air outlet end 103 can volatilize the hair care active material and apply it to the hair-drying object, please refer to Figure 3 and Figure 4. In the embodiment of the present application, the care box 702 can be provided with a care box air inlet. 4022 and the care box air outlet 4023. The care box air inlet 4022 can be connected with the air outlet end 103, so that the flowing wind ejected from the air outlet end 103 can enter the inner cavity of the care box 702 through the care box air inlet 4022 and The hair care active substances are in contact with each other, so that the hair care active substances are volatilized, and the flowing wind carrying the molecules of the hair care active substances is ejected from the air outlet 4023 of the care box and acts on the surface of the hair-drying object to realize the hair care operation.

Please refer to Figure 5. In some embodiments of the present application, in order to detect the concentration of hair care active substances carried in the return air of the hair dryer, the hair drying device may also include a hair care active substance detection unit 107. The hair care active substance detection unit 107 may Disposed in the return air channel 101, it is used to detect the concentration of hair care active substances in the return air of the blowing object in the return air channel 101. The hair care active substance detection unit 107 can include any existing gas sensor or be integrated with a gas sensor. The detection device of the sensor is not specifically limited here.

Please continue to refer to FIG. 5 . In some embodiments of the present application, the blowing device may also include a second temperature detection unit 108 disposed at the air outlet of the device body, such as the air outlet end 103 of the blowing part 10 . When the heating wire 301 touches the blowing part 10 When the flowing air in the inner cavity flowing to the air outlet of the air outlet end 103 is heated, the second temperature detection unit 108 can be used to detect the air outlet temperature and feed it back to the processor, so that the processor can adjust the temperature according to the feedback. The outlet air temperature value controls the heating power of the heating wire 301 to control the air temperature between 40°C and 55°C. The second temperature detection unit 108 may include any existing temperature sensor. sensor or a detection device integrated with a temperature sensor, which is not limited here.

Please combine Figure 1, Figure 5 and Figure 6. In the embodiment of the present application, the hair drying device can also include a speaker 40 and a display screen 50. The speaker 40 can be provided on the handheld portion 20 and used to voice broadcast the current working status of the hair drying device. , faults, prompts, etc.; the display screen 50 can be set at the rear of the blowing part 10 such as the air inlet end 104. The display screen 50 can synchronously display the working mode, relevant working parameters and other information of the blowing equipment. When switching the working gear of the blowing equipment When the current working mode is displayed on the display screen 50, the speaker 40 performs voice broadcast simultaneously. When the hair care active substances in the care box 702 are about to be exhausted, the user can also be reminded by voice to promptly replace the care box 702 or replenish the hair care active substances. things.

In the embodiment of the present application, the processor can be the main control chip of the hair dryer itself, or it can be a separate control chip. The processor can be equipped with a general-purpose input/output (GPIO) port and a serial communication bus. (Inter-Integrated Circuit, IIC) interface, Universal Asynchronous Receiver/Transmitter (UART), Serial Peripheral Interface (SPI), Analog-to-Digital Converter, ADC), Liquid Crystal Display (LCD) and other common peripherals are connected to the return air detection unit 102, environment detection unit 202, fan 302, heating wire 301, and distance detection unit in the above embodiment through communication interfaces or buses respectively. 105. The hair care active substance detection unit 107, the second temperature detection unit 108, the display screen 50 and the speaker 40 are connected through communication, and the working parameters of the fan 302 and the heating wire 301 are adjusted based on the detection results fed back by each detection unit, and the fan 302 and the heating wire are controlled. The working state of the wire 301 is adjusted to enable the blowing equipment to achieve different levels of blowing operations.

Since the working parameters or working modes of current hair drying equipment usually rely on the user's settings of mechanical switches on the surface of the fuselage or controls on the user interface, if the user only relies on user preferences to blindly pursue quick hair drying, it will not only damage the hair drying object. , and also reduce the user's comfort.

Based on this, the control method of the blowing equipment of this application includes:

Please refer to FIG. 7 , which is a schematic flow chart of the control method of the blowing equipment provided in the embodiment of the present application. It should be noted that although a logical sequence is shown in the flow diagram, in some cases, the steps shown or described may be performed in a different order than here. The control method of the blowing device may include the following steps.

Step S701: Obtain the environmental state information of the blowing environment detected by the environment detection unit.

Since the user's physical comfort temperature is different in different environments, for example, the human body's physical comfort temperature range is 19-24°C in summer, and the human body's physical comfort temperature range is 17-22°C in winter. For hair blowing experience, It is said that the comfortable temperature of the human body is around 55℃ when the hot air is in high speed, and the comfortable temperature of the human body when the cold air is in the high speed is around 30℃.

It can be understood that as the environmental state changes, the human body's physical comfort for the hair drying experience is different. Under any environmental conditions, the blowing operation depends on the gear set by the user to control the blowing equipment, which may result in poor comfort.

Therefore, in the embodiment of the present application, the environmental state information detected by the environment detection unit in contact with the ambient air of the hair blowing environment can be obtained, thereby determining the current state of the hair blowing environment.

According to the description of the blowing device in the above embodiment, it can be known that the environment detection unit can be placed close to the air inlet of the air inlet channel, so that the environment detection unit can be in contact with the external environment and detect the environmental status of the blowing environment such as ambient temperature, ambient humidity, etc.

It can be understood that the environment detection unit can sample the environmental status information of the blowing environment according to a preset sampling period. For example, if the sampling frequency of the environment detection unit is set to 10 Hz, the environment detection unit can sample 10 sets of blowing conditions per second. Environment status information of the development environment.

In the embodiment of the present application, the way for the processor to obtain the environmental status information detected by the environment detection unit may be to actively obtain it. For example, an acquisition cycle may be configured for the processor in advance, and the processor periodically communicates with the environment detection unit based on the acquisition cycle. , thereby obtaining the environmental status information detected by the environmental detection unit.

It can be understood that the way for the processor to obtain the environmental status information detected by the environment detection unit can also be passive acquisition. For example, a transmission cycle can be configured for the environment detection unit in advance, and the environment detection unit analyzes the hair blowing environment according to the preset sampling period. After the environmental state information is sampled, the environment state information can be periodically communicated with the processor according to the sending cycle, thereby sending the environment state information to the processor, so that the processor can obtain the environment state information.

Step S702: Determine the reference working parameters of the blowing equipment according to the environmental status information, and control the blowing equipment to perform the blowing operation based on the reference working parameters.

After the environmental state information is obtained in step S701, the reference operating parameters of the blowing equipment can be determined based on the environmental state information. It can be understood that the reference operating parameters here can be operating parameters corresponding to the working components of the blowing equipment, for example, for For the fan, the benchmark working parameter is the fan speed. For the heating wire, the benchmark working parameter is the heating wire power.

In order to avoid detection deviation of the environment detection unit due to external interference, in some embodiments, the environment state information can also be information after denoising or optimization processing. For example, the processor obtains the environment state information at the current moment. Finally, the current environmental state information and the average of all environmental state information within a period of time before the current moment can be taken as the current environmental state information to improve data accuracy.

It is understandable that for different environmental conditions, the basic working parameters of the blowing equipment are different, thereby ensuring that the user feels good when the blowing equipment works based on the corresponding basic working parameters.

Step S703: Obtain the return air status information of the return air of the blowing object detected by the return air detection unit when the blowing equipment performs a blowing operation based on the reference operating parameters.

According to the description of the blowing equipment in the above embodiment, it can be known that when the blowing equipment performs the blowing operation, when the fan is running, affected by the negative pressure, the airflow that the front end of the blowing part has contacted with the blowing object, that is, the return air of the blowing object, can be The air inlet of the return air channel is sucked into the air inlet of the fan, and the return air detection unit is installed in the return air channel and can detect the air flow that has been in contact with the blowing object, that is, the return air state of the blowing object.

In the embodiment of the present application, the return air detection unit can also sample the return air status information of the return air from the blowing object in the return air channel according to a preset sampling period. For example, the sampling frequency of the return air detection unit is set to 20 Hz. , then the return air detection unit can sample 20 sets of return air status information per second.

It can be understood that the method in which the processor obtains the return air status information detected by the return air detection unit can be the same as the method in which the processor obtains the environmental status information detected by the environment detection unit. For details, please refer to Step S701 for obtaining the environmental status information detected by the environment detection unit. The description will not be repeated here.

Step S704: Adjust the reference working parameters according to the return air status information, and control the blowing equipment to perform the blowing operation based on the adjusted working parameters.

During the process of blowing the object, the state of the object changes with the duration of the blowing. For example, as the blowing duration increases, the water on the surface of the object gradually evaporates, and the object gradually changes from a wet state to a dry state. , during this process, if the working parameters of the blowing equipment are always kept constant, it will not only cause a waste of electric energy, but also easily damage the blowing object, resulting in poor user comfort.

Therefore, during the process of the blowing equipment performing a blowing operation on the blowing object, the baseline operating parameters of the blowing equipment can be adjusted according to the obtained return air status information.

It can be understood that the temperature and humidity value of the airflow after contact with the blowing object can reflect the current state of the blowing object. Adjusting the reference working parameters according to the current state of the blowing object can make the working state of the blowing equipment match the state of the blowing object. Therefore, The return air status information can include the return air humidity detection value and the return air temperature detection value. Control the blowing equipment to perform blowing operations based on the adjusted working parameters. This can not only ensure drying efficiency, but also improve user comfort and protect the blowing objects from damage. .

In the embodiment of the present application, the environmental state of the blowing environment is detected through an environment detection unit arranged in the air inlet channel of the blowing equipment, and the baseline operating parameters of the blowing equipment are determined based on the detected environmental state information. When the working parameters are used for blowing operation, the return air status of the return air of the blowing object is detected through the return air detection unit set in the return air channel, and the reference working parameters are adjusted based on the detected return air status information, so that the blowing equipment can work based on the adjustment. The blowing operation can be carried out according to the parameters to ensure that the working parameters of the blowing equipment are dynamically adjusted after the temperature and humidity of the blowing environment change, so as to improve the comfort without losing the drying efficiency, avoid damaging the blowing objects, and improve the reliability of the blowing equipment.

Next, each step shown in Figure 7 and specific implementations that may be adopted in practical applications will be described in detail.

In some embodiments of the present application, adjusting the baseline operating parameters based on return air status information may further include:

Determine the target working parameters of the blowing equipment based on the return air status information and the current blowing duration of the blowing equipment; adjust the baseline working parameters based on the preset adjustment parameters until the adjusted working parameters match the target working parameters.

As the hair blowing time increases, the hair blowing object gradually changes from wet to dry. Therefore, in the embodiment of the present application, the target working parameters can be determined based on the return air status information and the current blowing time of the hair blowing equipment. The target working parameter here is The parameters are the target working parameters of the fan and heating wire corresponding to the current state of the blowing object reflected in the return air status information. number.

It can be determined through past experience or multiple experiments that the target operating parameters change non-linearly with the length of the blowing process. For example, in the first period of the blowing process, due to the relatively large surface humidity of the blowing object, its state changes. It will not be obvious. Therefore, the return air status information such as the return air humidity detection value will not change too much. Correspondingly, the target operating parameters at this stage will not change greatly;

In the middle period of the blowing process, because part of the water on the surface of the object has evaporated in the previous period, and the surface temperature of the object has also increased, at this time, the blowing operation continues on the object. As time continues to increase, the moisture on the surface of the air-blowing object will evaporate rapidly at this stage. At this time, the state of the air-blowing object changes more obviously. Therefore, the return air humidity detection value changes greatly. Correspondingly, the target operating parameter variation range at this stage is correspondingly larger;

In the later period of the blowing process, when the moisture on the surface of the blowing object is close to complete evaporation, because the surface humidity of the blowing object is small, its state change will not be obvious at this stage. Therefore, the change in the return air humidity detection value will not be obvious. If it is too large, correspondingly, the target working parameters at this stage will not change much.

Based on this, taking heating wire power adjustment as an example, this embodiment can determine the target heating wire power P through the following control logic function:

Among them, t represents the current blowing time, and P _base represents the base heating wire power.

Please refer to Figure 8. Figure 8 is a schematic diagram of an adjustment curve of the target heating wire power adjusted according to the blowing duration and the return air humidity detection value when the distance between the blowing equipment and the blowing object is constant. The horizontal axis is the blowing duration (unit/ s), the vertical axis is the target heating wire power (unit/kW).

It can be understood that the lower limit of humidity can be any value determined based on past experience or multiple experiments, and it can be in the form of a percentage value. For example, the lower limit of humidity can be 15%, 20%, 25%, 30%, etc. , the selection of the lower humidity limit can be determined according to the actual application scenario, and there is no specific limit here.

When the current blowing duration is less than 10 seconds and the return air humidity detection value is less than the lower humidity limit, the target heating wire power P can be calculated through Equation (1), that is, the current blowing duration and the base heating wire power P _base are substituted into Equation (1) to obtain The corresponding target heating wire power P.

Since the distance between the blowing object and the blowing equipment will also affect the blowing effect, on the basis of obtaining the corresponding target heating wire power P according to equation (1), the target can also be calculated based on the distance between the blowing object and the blowing equipment. heating wire Power P is corrected and compensated.

For example, if it is detected that the distance between the blowing object and the blowing equipment is less than the preset distance threshold, 25W can be added to the target heating wire power P to obtain a new target heating wire power; If the distance between devices is greater than or equal to the distance threshold, 50W can be added to the target heating wire power P to further increase the heating wire power to ensure the blowing effect.

It is worth noting that the specific power value of the correction compensation in this embodiment can be determined according to the actual application scenario, and is not specifically limited here.

If the current blowing duration is less than 10s and the return air humidity detection value is greater than or equal to the lower humidity limit, or when the current blowing duration is between 10s and 4min, that is, 240s, the target heating wire power P can be calculated by equation (2), that is, The current blowing duration and the base heating wire power P _base are substituted into equation (2) to obtain the corresponding target heating wire power P.

If the blowing time is longer than 4 minutes, the target heating wire power P can be calculated through equation (3), that is, the current blowing time and the base heating wire power P _base are substituted into equation (3) to obtain the corresponding target heating wire power P.

In the embodiment of the present application, the method for determining the target fan speed may refer to the method for determining the target heating wire power, which will not be described again here.

In a specific implementation, after determining the target fan speed and target heating wire power corresponding to the current status of the blowing object reflected in the return air status information, the processor can directly adjust the current fan speed to the target fan speed, and The current heating wire power is adjusted to the target heating wire power, so that the blowing device performs blowing operation based on the target fan speed and target heating wire power.

However, this implementation method is suitable for application scenarios where the working parameter adjustment range is small. For example, the current fan speed is close to the target fan speed, and the current heating wire power is close to the target heating wire power. At this time, the fan is adjusted according to the above implementation method. Adjustment with the heating wire can ensure that the working status of the blowing equipment matches the current status of the blowing object.

For application scenarios with large adjustment ranges of working parameters, if the parameters of the fan and heating wire are adjusted directly in one step, the sudden changes may damage the object being blown, and the user may also feel obvious discomfort.

Therefore, in another specific implementation, the reference working parameters can also be adjusted according to the preset adjustment parameters until the adjusted working parameters are consistent with the target working parameters.

In the embodiment of the present application, the adjustment parameters may include an adjustment step size and an adjustment frequency. Based on the preset adjustment frequency and adjustment step size, the reference working parameters are gradually adjusted to the target working parameters, which can avoid a large adjustment of the working parameters that may cause the user to feel abrupt. The problem.

For example, the blowing device may also include a zero-crossing detection unit and a silicon-controlled device electrically connected to the zero-crossing detection unit. The silicon-controlled device may be pulse width modulated (Pulse Width Modulation, PWM) output by the processor. The signal controls the electrical connection state between the power supply and the hair dryer, thereby gradually adjusting the output power of the heating wire, that is, the heating wire power.

Specifically, the zero-crossing detection unit can be connected to the power supply of the blower equipment, and is used to detect the zero-crossing point of the power supply to generate The zero-crossing signal is output to the processor. The processor can determine the zero-crossing point of the power supply based on the received zero-crossing signal, thereby outputting a PWM signal to the thyristor device to control the switching state of the thyristor device.

It can be understood that the zero-crossing detection unit can be any existing zero-point detection circuit. Please refer to Figure 9. Figure 9 is a schematic circuit diagram of the zero-crossing detection unit provided in the embodiment of the present application. The zero-crossing detection unit Including photocoupler U1, diode D1 and some peripheral resistors and capacitors, the circuit connection structure of the zero-crossing detection unit is specifically:

The anode of the light emitter of the photoelectric coupler U1 is connected to the live wire L of the power supply through the first resistor R1 and the second resistor R2. The cathode of the light emitter of the photoelectric coupler U1 is connected to the anode of the diode D1. The cathode of the diode D1 is connected to the neutral line N of the power supply. , and the first capacitor C1 is connected between the anode and cathode of the light emitter of the photocoupler U1; one end of the photoreceiver of the photocoupler U1 is connected to the +3.3V working power supply through the third resistor R3, and the output is through the fourth resistor R4 The zero-crossing signal ZERO is sent to the processor, and the other end of the photoreceptor of the photoelectric coupler U1 is connected to the ground electrode GND.

The working principle of the zero-crossing detection unit is:

When the power supply is working in the positive half cycle, the emitter of the photoelectric coupler U1 is turned on and emits light, the photoreceiver of the photoelectric coupler is turned on, and the output zero-crossing signal ZERO is a low-level signal; when the power supply is working in the negative half cycle, the photoelectric coupling The emitter of U1 is not conducting, the photoreceiver of the optocoupler is not conducting, and the output zero-crossing signal ZERO is a high level signal.

In this way, when the power supply changes from the positive half cycle to the negative half cycle, the zero-crossing signal ZERO jumps from low level to high level, forming a rising edge; when the power supply changes from the negative half cycle to the positive half cycle, the zero-crossing signal ZERO changes from high level to high level. The flat jump changes to low level, forming a falling edge.

The processor can determine the zero-crossing point of the power cycle based on the level change/edge of the received zero-crossing signal ZERO, and thereby output a PWM signal with a corresponding duty cycle to control the switching of the thyristor device.

If a complete adjustment cycle is set to 24 power cycles, and 1 power cycle corresponds to 1 sine wave, then 24 power cycles correspond to 24 sine waves or 48 half waves. Taking the heating wire as an example, if the heating wire The maximum power is 1200W, then the 1200W is evenly distributed to each half-wave, and each half-wave corresponds to 25W. The heating wire power can be adjusted by adjusting the number of half-waves in which the thyristor device is turned on or off through the PWM signal. In this way, by refining the heating wire power and gradually adjusting the base heating wire power to the target heating wire power based on the adjustment step of 25w, it not only makes the adjustment process smoother and less abrupt, but also protects the object of the blower.

It can be understood that the adjustment of the fan speed can also refer to the adjustment method of the heating wire power, which will not be described again here.

In some embodiments of the present application, the return air status information includes the return air humidity detection value, and the reference working parameters are adjusted based on the preset adjustment parameters until the adjusted working parameters match the target working parameters. After that, the method may further include :

Obtain the current return air humidity detection value detected by the return air detection unit. If the current return air humidity detection value is greater than the preset return air humidity threshold, increase the target operating parameters based on the first preset step size; if the current return air humidity detection value If the value is not greater than the return air humidity threshold, the target operating parameters are adjusted smaller based on the second preset step size.

In the embodiment of the present application, after the working parameters of the blowing equipment are adjusted to the target working parameters, the working parameters can be further adjusted according to the actual blowing scene.

Wherein, the first preset step size and the second preset step size may respectively include an adjustment step size for the fan speed and an adjustment step size for the heating wire power, and the return air humidity threshold may be any form of the preset setting. values, such as 0.6, 60%, 0.7, 70%, etc., the first preset step size and the second preset step size may be the same or different, and the details may be determined according to the actual application scenario.

For example, set the current return air humidity detection value to be obtained every 50ms. If the current return air humidity detection value obtained for the first time is greater than the return air humidity threshold of 0.7, it can be determined that the blowing object is currently relatively humid, and the target work can be increased. Parameters, therefore, for the fan, you can use 05,000 revolutions as a level, and add 0.5 million revolutions based on the target fan speed. For the heating wire, you can use 25W as a level, and add 25W based on the target heating wire power; If the current return air humidity detection value obtained when the second 50ms arrives is still greater than the return air humidity threshold of 0.7, the fan speed and heating wire power can continue to be increased based on the last adjustment.

It should be noted that if the current return air humidity detection value continues to be greater than the return air humidity threshold of 0.7, when increasing the fan speed and heating wire power, you need to stop increasing the fan speed and heating until the upper limit of the fan speed and the upper limit of the heating wire power are reached. wire power.

If the current return air humidity detection value obtained is less than or equal to the return air humidity threshold 0.7, the target fan speed and target heating wire power can be lowered in a stepwise manner. For example, the fan speed is set to decrease by 2500 rpm every 2 seconds and the heating wire power is set to decrease every 3 seconds. Decrease by 25W until the fan speed and heating wire power are reduced to the base value corresponding to the current distance between the blowing object and the blowing device.

In some embodiments of the present application, determining the baseline operating parameters of the blowing equipment based on environmental status information may further include:

Obtain the distance detection value between the air outlet end detected by the distance detection unit and the surface of the blowing object; determine the baseline working parameters of the blowing equipment based on the distance detection value and environmental status information.

It can be understood that if the distance between the air outlet end of the blowing equipment and the surface of the blowing object is relatively close, the air blowing equipment can achieve a good blowing effect based on smaller baseline operating parameters. When the distance between the surface of the blowing object and the surface of the blowing object is far away, still using smaller reference working parameters will not only fail to achieve the ideal blowing effect, but also greatly reduce the blowing efficiency. Therefore, this application can detect the distance between the air outlet end and the distance detected by the distance detection unit. The distance detection value between the surfaces of the blowing object and the environmental status information determine the baseline operating parameters of the blowing equipment.

The environmental status information includes an ambient humidity detection value and an ambient temperature detection value. Regarding the ambient humidity detection value, if the ambient humidity detection value is less than or equal to a preset humidity threshold, such as 80%, it can be determined that the humidity of the current blowing environment is low. At this time, the baseline operating parameters of the blower equipment can be determined based on the ambient temperature detection value and distance detection value.

On the contrary, if the ambient humidity detection value is greater than the humidity threshold, such as 80%, it can be determined that the humidity of the current blowing environment is high, and the blowing operation may be performed in a high-humidity environment such as a bathroom. At this time, the processor can prompt the user to blow The working mode of the equipment is set to the quick-drying mode or the processor can directly control the blowing equipment to enter the quick-drying mode to control the high-speed rotation of the fan and the heating wire to work at the maximum heating power to achieve high wind speed and high wind temperature drying of the blowing object. .

It should be noted that when the blower equipment is working in the quick-drying mode, if it is detected that the distance detection value between the air outlet and the blowing object continues to be less than or equal to the preset safe distance threshold within a preset short period of time, Then the processor can control the heating wire to stop heating, that is, turn off the heating wire, and at the same time control the speaker to prompt the user that the distance is too close and it is easy to get burned. And while controlling the speaker voice prompt, the processor can also control the fan speed to reduce so that the user can Accurately recognize speech content.

Regarding the ambient temperature detection value, in the embodiment of the present application, it can first be determined whether the ambient temperature detection value can represent the ambient temperature of the current blowing environment. When it is determined that the ambient temperature detection value can characterize the ambient temperature of the current blowing environment, based on the distance The detection value and the ambient temperature detection value determine the baseline operating parameters of the blower equipment.

In some embodiments of the present application, the air blowing device may further include a first temperature detection unit for detecting the temperature of the heating wire; the return air status information includes a return air temperature detection value; and the air blowing device is determined based on the distance detection value and the ambient temperature detection value. Baseline operating parameters may further include:

Obtain the temperature value of the heating wire detected by the first temperature detection unit; if the difference between the temperature value and the ambient temperature detection value is not greater than the preset temperature difference threshold, or the difference between the temperature value and the return air temperature detection value is not greater than the temperature difference threshold, then according to The distance detection value and the ambient temperature detection value determine the baseline operating parameters of the blower equipment.

In the embodiment of this application, the first temperature detection unit can be any existing contact or non-contact temperature sensor, and the temperature difference threshold can be set to any value such as 2, 3, 5, etc. The specific temperature difference threshold can be based on the actual application. The scene is determined and is not limited here.

If the difference between the temperature value of the heating wire detected by the first temperature detection unit and the detection value of the ambient temperature is less than or equal to the temperature difference threshold, or the difference between the temperature value of the heating wire detected by the first temperature detection unit and the detection value of the return air temperature is less than or equal to If the temperature difference threshold is determined, it can be determined that the temperature at the handheld part is more consistent with the temperature of the heating wire or that the temperature at the blower part is more consistent with the temperature of the heating wire. This can further determine that the blower device has not been used in a short period of time, that is, it is in a cold state this time. When the device is turned on, the ambient temperature detection value detected by the environment detection unit at the handheld part can reflect the current actual ambient temperature. Therefore, the baseline operating parameters of the blower device can be determined based on the distance detection value and the ambient temperature detection value.

On the contrary, if the difference between the temperature value of the heating wire detected by the first temperature detection unit and the detection value of the ambient temperature is greater than the temperature difference threshold, or the difference between the temperature value of the heating wire detected by the first temperature detection unit and the detection value of the return air temperature is greater than the temperature difference threshold , it can be determined that the temperature at the handheld part is significantly different from the temperature of the heating wire, or that the temperature at the blower part is greatly different from the temperature of the heating wire, so it can be further determined that the blower device has been used in a short period of time, that is, this time the power is turned on in a hot state. , at this time, the ambient temperature detection value detected by the environmental detection unit at the handheld part cannot reflect the current actual ambient temperature. In this scenario, the processor can obtain the ambient temperature detection value corresponding to the last cold boot, and detect it based on the distance The value and the ambient temperature detection value determine the baseline operating parameters of the blower equipment.

In another specific implementation, a temperature threshold such as 50°C can also be determined based on past experience and multiple experiments, and the temperature value of the heating wire detected by the first temperature detection unit is directly compared with the temperature threshold. If the temperature value is less than With this temperature threshold, it can be determined that the hair dryer has not been used in a short period of time, that is, it is a cold boot this time. At this time, the ambient temperature detection value detected by the environmental detection unit at the handheld part can reflect the current actual ambient temperature. Therefore, , can be based on The distance detection value and the ambient temperature and humidity detection value determine the baseline operating parameters of the blower equipment.

And if the temperature value is greater than or equal to the temperature threshold, it can be determined that the hair dryer has been used in a short period of time, that is, this boot is a hot boot. At this time, the ambient temperature detection value detected by the environmental detection unit at the handheld part cannot reflect the current The actual ambient temperature. In this scenario, the processor can obtain the ambient temperature detection value corresponding to the last cold boot, and determine the baseline operating parameters of the blower equipment based on the distance detection value and the ambient temperature detection value.

In the embodiments of this application, the reference working parameters of the blower equipment can be different under different ambient temperatures and different distances. Specifically, the reference fan speed and reference speed corresponding to different distances under different ambient temperatures and different distances can be recorded in the form of a correlation table. Heating wire power.

For example, for the case where the ambient temperature is greater than or equal to 30°C, record the reference fan speed and reference heating wire power corresponding to different distance values through the following correlation table 1; for the case where the ambient temperature is not less than 25°C and less than 30°C , record the base fan speed and base heating wire power corresponding to different distance values through the following correlation table 2; for the situation where the ambient temperature is not less than 20°C and less than 25°C, record the corresponding distance values through the following correlation table 3 The base fan speed and base heating wire power; for the situation where the ambient temperature is less than 20°C, record the base fan speed and base heating wire power corresponding to different distance values through the following correlation table 4.

Association table one

Association table two

Association table three

Association table four

After determining the ambient temperature of the current blowing environment based on the ambient temperature detection value, the processor can read the association table corresponding to the ambient temperature, and thereby find the reference fan speed and benchmark corresponding to the current distance detection value in the association table The heating wire power is used to control the fan operation based on the reference fan speed and the heating wire operation based on the baseline heating wire power.

It can be understood that since the user may shake the blowing device back and forth when using the blowing device, changing the distance between the air outlet end of the blowing device and the blowing object, therefore, if the distance detection unit can periodically detect according to the set detection frequency The distance between the blowing object and the air outlet end. If the detected distance detection value changes, the corresponding benchmark operating parameters can also be adjusted accordingly, so that the temperature and air output volume of the wind acting on the blowing object are constant. changes to improve user comfort.

It can be understood that the hair drying device can be configured with multiple working modes, such as cold air mode, quick drying mode, hair care mode and smart mode. When the hair drying device works in the cold air mode, quick drying mode and hair care mode, the fan of the hair drying device The rotation speed and heating wire power can be preset constant values corresponding to the corresponding modes. In the smart mode, the fan rotation speed and heating wire power can be adjusted according to the control method of the blowing equipment in any embodiment of the present application. Therefore, In some embodiments of the present application, obtaining the environmental status information of the hair blowing environment detected by the environment detection unit may further include:

Obtain the blowing instruction; obtain the environmental status information of the blowing environment detected by the environment detection unit in response to the blowing instruction; or, extract the working mode information carried in the blowing instruction; determine the working mode of the blowing equipment according to the working mode information; when the blowing equipment is working When the mode is the preset target mode, the environmental status information of the hair blowing environment detected by the environment detection unit is obtained.

It can be understood that the blowing command can be a booting command sent by the user to the processor through a mechanical button on the blowing device or an interactive control on the display screen. When the processor receives the booting command, it can directly communicate with the environment in response to the booting command. The detection unit communicates to obtain the environmental status information detected by the environmental monitoring unit.

The user can also select the working mode of the blowing equipment for the blowing operation through mechanical buttons or interactive controls. Therefore, the blowing command can also carry the working mode information selected by the user. The processor obtains the working mode information such as the mode identifier. After the code blowing instruction is issued, the mode identification code in the blowing instruction can be read to determine the corresponding working mode associated with the mode identification code. When the extracted mode identification code is the identification code corresponding to the preset target mode such as the smart mode, the process The device can communicate with the environment detection unit and obtain the environmental status information detected by the environment detection unit.

If the extracted mode identification code is the identification code corresponding to the quick-drying mode, the processor can control the blowing device to perform the blowing operation on the blowing object according to the preset fan speed and heating wire power in the quick-drying mode. For example, when the hair drying device works in quick-drying mode, the fan speed is constant at 105,000 rpm and the heating wire power is constant at 1200W.

If the extracted mode identification code is the identification code corresponding to the cold air mode, the processor can control the blowing equipment to perform the blowing operation on the blowing object according to the preset fan speed and heating wire power in the cold air mode. For example, when the blower equipment works in the cold air mode, the fan speed is constant at 105,000 rpm and the heating wire is turned off.

If the extracted mode identification code is the identification code corresponding to the hair care mode, the processor can control the hair drying device to perform a blowing operation on the hair drying object according to the fan speed and heating wire power in the preset hair care mode. For example, when the hair dryer is working in the hair care mode, the fan speed is constant at 80,000 rpm and the heating wire power is constant at 300W.

In the embodiment of the present application, the hair drying device can also be equipped with a ring-shaped light strip. The ring-shaped light strip can be arranged on the blowing part or on the handheld part. By controlling the luminous color of the ring light strip, the functions of the hair drying device can be displayed to the user. Current working mode, dryness and wetness level of the hair-drying object and other information.

Please refer to Figure 10. Figure 10 is another structural schematic diagram of the blowing device provided in the embodiment of the present application. The blowing part 10 is provided with an annular light strip 60. The annular light strip 60 can include any existing two-color light emitting diode. That is, a two-color LED lamp. It can be understood that the ring-shaped light strip 60 can be electrically connected to the processor, thereby displaying different colors in response to the driving signal output by the processor.

In some embodiments, the wet and dry progress of the hair-drying object can be displayed to the user through different luminous colors of the dual-color LED lights. For example, a two-color LED light includes a blue light that emits blue light and a red light that emits red light. The processor controls the blue light and red light by outputting PWM modulation signals with different duty cycles to the blue light and red light respectively. On and off.

Please refer to Figure 11. Figure 11 is a color adjustment schematic diagram for adjusting the luminous color of the ring light strip according to the return air humidity detection value provided in the embodiment of the present application, in which the duty cycle modulation range of the first PWM modulation signal corresponding to the blue light is 0-100%, the duty cycle modulation range of the second PWM modulation signal corresponding to the red light is 0-100%, and the output frequency of the first PWM modulation signal and the second PWM modulation signal is 1Khz.

If the return air humidity detection value is 100%, the duty cycle of the first PWM modulation signal output by the processor is 0, and the duty cycle of the second PWM modulation signal is 100%. At this time, the red light reaches the maximum brightness and the blue light reaches the maximum brightness. The color light does not emit light to indicate that the humidity of the blowing object is extremely high.

If the return air humidity detection value is 0, the duty cycle of the first PWM modulation signal output by the processor is 100%, and the duty cycle of the second PWM modulation signal is 0. At this time, the red light does not emit light and the blue light reaches The maximum luminous brightness indicates that the object being blown is in a dry state.

During the blowing process, if the return air humidity detection value decreases from 100% to the return air humidity upper limit value such as 80%, the duty cycle of the second PWM modulation signal gradually decreases from 100% to 80%, and the first PWM modulation signal The duty cycle of the signal is still 0. At this stage, the blue light remains non-luminous, and the luminous brightness of the red light gradually decreases from the maximum luminous brightness;

If the return air humidity detection value decreases from the upper limit of return air humidity, such as 80%, to the lower limit of return air humidity, such as 20%, then the duty cycle of the second PWM modulation signal gradually decreases from 80% to 0, and the first PWM The duty cycle of the modulation signal gradually increases from 0 to 80%. At this stage, the luminous brightness of the red light gradually decreases, and the luminous brightness of the blue light gradually increases;

When the return air humidity detection value decreases from the lower limit of return air humidity, such as 20%, to 0, the duty cycle of the first PWM modulation signal gradually increases from 80% to 100%, and the duty cycle of the second PWM modulation signal remains 0. At this stage, the red light remains non-luminous, and the luminous brightness of the blue light gradually reaches the maximum luminous brightness.

In the embodiment of the present application, the above-mentioned two-color LED color gradient display method is used to display the wetness and dryness of the hair-drying object, so that the user can clearly understand the hair-drying process and improve the user experience.

Since the best hair care effect can only be achieved when the hair dryer is nearly dry, for example, when the hair dryer is 80% dry, the hair dryer in the prior art only relies on the user's preference to enter the hair care mode. If you condition the hair when the subject is not 80% dry, it will cause a waste of hair care actives. If you condition the hair when the subject has been completely dried, the ideal hair care effect may not be achieved.

Based on this, as shown in Figure 12, in some embodiments of the present application, the current return air humidity detection value detected by the return air detection unit is obtained. After that, the method may further include the following steps:

Step S1201: When the current return air humidity detection value is less than the preset humidity threshold, count the duration for which the current return air humidity detection value continues to be less than the humidity threshold;

Step S1202: If the duration meets the preset hair care trigger condition, change the current working state of the hair dryer.

According to the description of the hair drying equipment in the above embodiment, it can be known that when the hair drying equipment is drying hair, the motor is running, and affected by the negative pressure, the air at the front end of the hair dryer, that is, the return air from the blowing object, can be sucked into the motor through the return air channel. of the wind Therefore, the return air detection unit disposed in the return air channel can detect the humidity of the return air from the blowing object in the return air channel. It can be understood that the return air detection unit can sample the humidity value of the return air from the blowing object in the return air channel according to a preset sampling period.

In this embodiment of the present application, the processor may obtain the current return air humidity detection value detected by the return air detection unit through active acquisition. For example, an acquisition cycle may be configured for the processor in advance, and the processor periodically communicates with the processor based on the acquisition cycle. The return air detection unit communicates to obtain the current return air humidity detection value detected by the return air detection unit.

It can be understood that the way in which the processor obtains the current return air humidity detection value detected by the return air detection unit can also be passive acquisition. For example, a transmission cycle can be configured for the return air detection unit in advance, and the return air detection unit samples according to the preset After periodically sampling the humidity value of the return air from the blowing object in the return air channel, you can periodically communicate with the processor according to the sending cycle, thereby sending the current return air humidity detection value to the processor, so that the processor can obtain Current return air humidity detection value.

In order to avoid detection deviation of the return air detection unit due to external interference, in some embodiments, the current return air humidity detection value may also be a humidity detection value after denoising or optimization processing. For example, the processor obtains After the return air humidity detection value at the current moment, you can take the return air humidity detection value at the current moment and the average of all return air humidity detection values within a period of time before the current moment as the current return air humidity detection value to improve data accuracy. .

It can be understood that the humidity threshold can be any value determined based on past experience or multiple experiments, and it can be presented in the form of a percentage value, because hair care is performed when the hair dryer is close to being dried, such as when the hair dryer is 80% dry. The best hair care effect can be achieved. For example, the humidity threshold can be 18%, 20%, 25%, 30% and other values.

Since the best hair care effect can be achieved by caring for the hair when the object is nearly dry, such as when the object is 80% dry, therefore, when the current return air humidity detection value is less than the humidity threshold, it can be determined that the object is close to being dried. status. At this time, in order to avoid interference from the external environment that causes deviations in the humidity detection value of the return air detection unit, statistics can be made on the duration for which the current return air humidity detection value continues to be less than the humidity threshold within a period of time to eliminate accidental detection errors. .

For example, when the current return air humidity detection value is less than the humidity threshold for the first time, the processor can start timing. If every current return air humidity detection value thereafter is less than the humidity threshold, the current return air humidity detection value continues to be less than the humidity threshold. The duration is the time the processor counts. If there is a current return air humidity detection value that is not less than the humidity threshold, the processor can stop timing when it obtains the current return air humidity detection value that is not less than the humidity threshold.

It can be understood that the hair care trigger condition can be a trigger condition determined based on past experience or multiple experiments. When the current return air humidity detection value continues to be less than the humidity threshold for a duration that satisfies the hair care trigger condition, it can be determined that the hair drying object has reached the appropriate level. Therefore, in the embodiment of the present application, when the duration meets the hair care trigger condition, the processor can change the current working state of the hair drying device to prompt the user that the hair drying object is suitable for hair care operations. the best condition.

In the embodiment of the present application, changing the current working state of the hair drying device may specifically include controlling the hair drying device to emit hair care tips. Indicate and/or control the hair drying equipment to switch from the current working mode to the hair care mode.

In the embodiment of the present application, the processor can cause the hair dryer to send out hair care prompts by controlling the speaker's voice broadcast, or can cause the hair dryer to send out hair care prompts by controlling the display screen to display corresponding reminder icons, so that the user can receive the message. After the hair care prompt, you can perform corresponding operations such as installing the hair care nozzle accessory on the device body, selecting to enter the hair care mode through the mechanical buttons on the device body or the controls on the display screen.

In some other application scenarios, when the processor determines that the hair-drying object has reached the optimal state suitable for hair care operations based on the duration, it can also automatically control the hair-drying equipment to switch from the current working mode to the hair care mode for hair care. operate.

In other application scenarios, the processor can also control the hair dryer to switch from the current working mode to the hair care mode while controlling the hair dryer to issue a hair care prompt. It is understandable that the hair care prompt at this time can be used to prompt the user. The hair dryer has been switched from the current working mode to the hair care mode.

Since humidity and dryness are a pair of corresponding indicators that measure the degree of dryness and humidity, in other application scenarios, the return air humidity detection value can also be converted into a dryness detection value. For example, the return air humidity detection value is 60%. , then the corresponding dryness detection value is 40%, the humidity threshold can be converted into a dryness threshold, and the processor can convert the current return air humidity detection value into a dryness detection value after obtaining the current return air humidity detection value , and then compare the dryness detection value with the dryness threshold to determine the starting moment of the statistical duration.

Alternatively, the detection of the humidity of the return air of the blowing object in the embodiment of the present application can also be directly converted into the detection of the dryness of the return air of the blowing object. It can be understood that the working principle of detecting the dryness is similar to that of detecting the humidity, so there will be no more details here. Repeat.

In the embodiment of the present application, the return air humidity detection value of the return air from the blowing object is detected through the return air detection unit arranged in the return air channel. The return air humidity detection value is less than the humidity threshold, and the return air humidity detection value is less than the humidity threshold. When the duration meets the hair care triggering conditions, changing the current working state of the hair drying equipment can ensure that the user is prompted to the user that the hair drying object is currently in a state suitable for hair care operations by changing the current working state of the hair drying equipment at the appropriate time, thus ensuring that It achieves the best hair care effect, improves the accuracy of hair care, and further ensures the reliability of hair drying equipment.

In some embodiments of the present application, if the duration meets the preset hair care trigger conditions, changing the current working state of the hair dryer may further include:

If the duration reaches the preset second duration, the current working state of the hair dryer is changed.

It can be understood that if the current return air humidity detection value continues to be less than the humidity threshold within a certain period of time, it can be determined that the hair-drying object has reached a state suitable for hair care operations. Therefore, the hair care triggering condition can be the preset second duration. , when the current return air humidity detection value continues to be less than the humidity threshold for a duration that reaches the second duration, it can be determined that the hair-drying object has reached a state suitable for hair care operations, and the hair-drying equipment can be controlled to issue hair care prompts and/or control the hair-drying equipment. Switch from current working mode to hair care mode.

In the embodiment of this application, the second duration can be any duration determined based on past experience or multiple experiments. For example, the second duration can be set to a value such as 10s, 15s, etc. The specific selection of the second duration can be determined based on the actual application scenario. , the details are not limited here.

As the hair drying time increases, the humidity value of the hair drying object gradually decreases. If the second duration is always compared with the continuous duration during the hair blowing process, it may be inaccurate to judge whether the hair drying object has reached a state suitable for hair care operations. The degree is not high.

Therefore, in some embodiments of the present application, if the duration meets the preset hair care trigger condition, changing the current working state of the hair dryer may further include:

Obtain the current cumulative duration of the hair drying operation of the hair drying equipment; if the duration meets the preset linear decrease law related to the current cumulative duration, the current working status of the hair drying equipment is changed.

In the embodiment of the present application, as the hair blowing time increases, the reference time for comparison with the duration can be set to gradually decrease, so as to improve the accuracy of judging the state of the hair drying object suitable for hair care operations and speed up the processor. Reaction time.

Therefore, a preset linear decrease law, such as a linear decrease function, related to the hair drying time can be set in advance. When the hair drying device starts to dry the hair, the processor can count the length of the hair drying operation, and then when needed When judging the duration, the current cumulative duration of the hair drying operation of the statistical hair dryer is obtained. At this time, the current cumulative duration is substituted into the preset linear decreasing function, and a reference corresponding to the current cumulative duration can be obtained. Duration. This reference duration can represent the duration that the current return air humidity detection value should continue to be less than the humidity threshold when the hair-drying object reaches a state suitable for hair care operations. Therefore, after determining the reference duration, it can be compared with the duration. .

If the duration is greater than or equal to the calculated reference duration, it can be determined that the hair-drying object has reached a state suitable for hair care operations, and the hair-drying equipment can be controlled to issue hair care prompts and/or the hair-drying equipment can be controlled to switch from the current working mode to hair care. mode; on the contrary, if the duration is less than the calculated reference duration, it can be determined that the hair-drying object has not reached a state suitable for hair care operations, and the hair-drying equipment can continue to work based on the current working mode.

In a specific implementation of this application, if the duration meets the preset linear decrease law related to the current cumulative duration, changing the current working state of the blower equipment may further include:

When the current cumulative duration is not greater than the preset duration threshold, and if the duration meets the preset linear decrease rule, the current working state of the blower equipment is changed;

When the current accumulated duration is greater than the duration threshold, and if the duration reaches the preset first duration, the current working state of the hair dryer is changed.

In the embodiment of the present application, the preset linear decrease rule may include a linear decrease function related to the hair blowing time and a time constant. Specifically, the hair blowing time may be segmented, and the length threshold is the period of time before the hair blowing. Within, you can set the duration to compare with the reference duration calculated based on the linear decreasing function to determine whether the hair-drying object is in a state suitable for hair care operations; and in the later period of hair-drying, you can set the duration to Compare with the time constant, that is, the first duration, to determine whether the hair-drying object is in a state suitable for hair care operations.

Based on the aforementioned judgment rules, it can be ensured that during the hair drying process, as the humidity of the hair drying object changes dynamically, it can be accurately and timely determined whether the hair drying object reaches a state suitable for hair care operations.

For example, the linear decreasing function can be set as reference duration = - current cumulative duration/12+25 (unit/s), the time constant, that is, the first duration is set to 5s, and the duration threshold is set to 240s, then in the current cumulative When the duration is less than or equal to 240s, the reference duration can be calculated based on the linear decreasing function, and the reference duration can be compared with the duration to determine whether the hair-drying object is in a state suitable for hair care operations; when the current cumulative duration is greater than 240s, you can Compare the duration with the time constant 5s to determine whether the hair-drying object is in a state suitable for hair care operations.

As shown in Figure 13, the horizontal axis represents the blowing time, and the vertical axis represents the reference time. Line A is the reference time function curve based on the linear decreasing function and time constant, and line B is the current return air humidity detected during the blowing process. The detection value continues to be less than the humidity threshold. According to Figure 13, we can know that when the current cumulative time is 3min30s, which is 210s, the reference time is 7.5s. At this time, the duration just reaches 7.5s, then it can be determined that the blowing object has just reached 7.5s. In a state suitable for hair care operations, the hair dryer can be controlled to issue hair care prompts and/or the hair dryer can be controlled to switch from the current working mode to the hair care mode.

If the hair blowing duration is longer than 240s, that is, 4 minutes, and if the duration is longer than the time constant of 5 seconds after 4 minutes, it can also be determined that the hair drying object has just reached a state suitable for hair care operations at this time, and the hair drying equipment can be controlled to issue hair care prompts and/or Control the hair drying equipment to switch from the current working mode to the hair care mode.

According to Figure 13, we can know that the curve corresponding to the linear decreasing function is a downward-sloping line segment with a fixed slope. It can be understood that in some other application scenarios, the curve corresponding to the linear decreasing function can also include segmented formulas with different slopes. line segment.

Please refer to Figure 14. In the embodiment of the present application, the linear decreasing function includes a first function and a second function. The first function and the second function are continuous in time and have different slopes. The critical points of the first function and the second function are The corresponding blowing time is 2min10s. The blowing time corresponding to the critical point between the second function and the time constant curve is 180s. The time constant is set to 5s. If the blowing time, that is, the current cumulative time is less than or equal to When 2min10s, you can substitute the current cumulative duration into the first function to calculate the reference duration, and continue to compare the duration with the reference duration; when the current cumulative duration is greater than 2min10s and less than 180s, you can substitute the current cumulative duration into the second function to calculate After obtaining the reference duration, continue to compare the duration with the reference duration; and when the current cumulative duration is greater than 180s, you can directly compare the duration with the time constant of 5s to determine whether the hair-drying object is in a state suitable for hair care operations.

It should be noted that the above are only some examples of the linear decrease function and the preset linear decrease rule in this application. The linear decrease function and the preset linear decrease rule can be set according to actual application scenarios and needs, and are not limited here.

In the embodiment of the present application, when the current return air humidity detection value is less than the humidity threshold, the processor can control the ring light strip 60 provided on the device body to emit light, as shown in Figure 10, to remind the user whether the current hair drying object is wet or dry. degree.

In some embodiments of the present application, after changing the current working state of the blowing equipment, the method may further include:

Obtain the accessory detection signal of the accessory detection unit to detect whether the hair care nozzle accessory is installed on the device body; if the accessory detection signal indicates that the hair care nozzle accessory is not installed on the device body, a hair care nozzle accessory installation prompt is issued; if the accessory detection signal The detection signal indicates that the hair care nozzle attachment is installed on the device body, and the hair drying device is controlled to perform hair care operations based on preset working parameters.

In the embodiment of the present application, after the hair drying device issues a hair care prompt or controls the hair drying device to switch from the current working mode to the hair care mode, the hair care nozzle can be detected through an accessory detection unit provided at the air outlet end of the device body, such as a hair dryer. Whether the accessory has been installed on the hairdryer.

The accessory detection unit can include a Hall sensor or an integrated device integrated with a Hall sensor. According to the Hall effect, it can be known that the Hall voltage changes with changes in magnetic field strength. Therefore, by setting it at the outlet end of the device body such as a hairdryer The accessory detection signal obtained by the combination of the accessory detection unit and the magnetic parts such as strong magnets on the hair care nozzle attachment can determine whether the hair care nozzle accessory has been installed on the hair dryer.

If the hair care nozzle accessory is installed in the hair dryer, the magnetic part is close to the Hall sensor, and the Hall sensor can sense the magnetic part, thereby outputting the corresponding accessory detection signal, such as a high-level accessory detection signal, to represent the hair care The air nozzle accessory is installed on the device body; on the contrary, if the hair care air nozzle accessory is not installed in the hair dryer, the magnetic part is far away from the Hall sensor. At this time, the Hall sensor cannot sense the magnetic part and outputs the corresponding accessory detection. Signals, such as low-level accessory detection signals, indicate that the hair care nozzle accessory is not installed on the device body.

Therefore, if the accessory detection signal acquired by the processor is a high-level accessory detection signal, it can be determined that the hair care nozzle accessory is set on the hair dryer; conversely, if the accessory detection signal acquired by the processor is a low-level accessory detection signal If the accessory detection signal is detected, it can be determined that the hair care nozzle accessory is not set on the hair dryer.

It can be understood that in some other application scenarios, the low-level accessory detection signal can also be used to indicate that the Hall sensor senses that the magnetic component, that is, the hair care nozzle accessory is installed on the device body. Similarly, the high-level The accessory detection signal can also be used to indicate that the Hall sensor does not sense the magnetic component, that is, the hair care nozzle accessory is not installed on the device body. The specific settings can be set according to the actual application scenario and are not limited here.

In the embodiment of the present application, if it is determined that the hair care nozzle accessory is not installed on the device body, the processor can control the speaker of the hair drying device to issue a voice broadcast or other hair care nozzle attachment installation prompt to prompt the user to install the hair care nozzle accessory. ; If it is determined that the hair care nozzle attachment has been installed on the device body, the processor can control the hair drying device to perform hair care operations based on preset working parameters.

It can be understood that the preset working parameters here are the working parameters of the motor, heating wire and other devices corresponding to the hair care mode.

In addition, in some other application scenarios, when it is determined that the hair care nozzle accessory has been installed on the device body, the processor can also control the speaker of the hair drying device to issue a voice announcement or other prompt that the hair care nozzle accessory has been installed to remind the user The hair care nozzle attachment has been installed on the device body. After the user confirms the hair care operation, the user can send hair care instructions to the processor by pressing the mechanical button on the handle or the control on the display screen to instruct the processor. The control hair drying device works based on the hair care mode.

Since the hair care active material attached to the hair care nozzle is a consumable, in some embodiments of the present application, the hair drying equipment is controlled to perform hair care operations based on preset working parameters. After that, the method may further include:

The current duration of the accessory detection signal is counted. When the current duration exceeds the preset statistical duration lower limit, the cumulative usage time of the hair care actives is updated based on the current duration; when the updated cumulative usage time of the hair care actives reaches the preset When the set time is exhausted, a prompt for replenishing hair care active ingredients will be issued.

In the embodiment of the present application, after it is determined that the hair care nozzle attachment is installed on the device body, the hair care operation can be performed on the hair-drying object through the hair care nozzle attachment. The flowing wind in the hair dryer can activate the hair care in the care box. The substances volatilize, so that the mixed gas mixed with hair care active substances blown out from the air outlet of the hair dryer can act on the blowing object. Therefore, when confirming that the hair care nozzle accessory is installed on the device body, you can check the accessories according to the The duration of the signal determines how long the hair care nozzle attachment can be used.

Since the volatilization of hair care active substances is not obvious in a very short period of time, in the embodiment of the present application, when the current duration exceeds the preset lower limit of statistical duration, the cumulative use of hair care active substances can be updated based on the current duration. duration.

The lower limit of statistical time can be set to any value such as 30s, 1min, etc. The specific lower limit of statistical time can be determined based on the volatility of hair care actives and actual application scenarios, and there is no specific limit here.

That is, only when the current duration exceeds the lower limit of the statistical duration, the cumulative use time of the hair care active will be updated. If the updated cumulative use time of the hair care active reaches the preset exhaustion time, the hair care active will be issued. Product replenishment prompt, that is, the processor can control the speaker of the hair dryer to make a voice broadcast to prompt the user to replace the care box or replenish hair care active ingredients in time. At the same time, it can also control the display of the hair dryer to display the set depletion icon prompt. The user has run out of hair care actives.

It can be understood that if the cumulative use time of the updated hair care active substance does not reach the exhaustion time, the processor can record the cumulative use time of the updated hair care active substance and use the hair conditioner again next time. When the mouth is attached, it will be updated based on the updated cumulative usage time until the cumulative usage time reaches the exhaustion time.

When the user replaces the care box or replenishes the hair care actives, the processor can clear the recorded cumulative usage time to zero so that the time can be restarted the next time the hair care nozzle accessory is used.

In the embodiment of the present application, the exhaustion time can be set to any value such as 18h, 20h, etc. The specific time can be determined according to the properties and volume of the hair care active substance, and is not specifically limited here.

Since most hair dryers on the market currently rely on strong wind and heat to dry hair, which can easily damage the tissue structure of the hair-drying object, the concentration of hair care actives on the surface of the hair can be kept relatively saturated by controlling the efficient volatilization of hair care actives. condition to ensure optimal hair care results.

Therefore, in some embodiments of the present application, the hair care active substance detection unit disposed in the return air channel can also be used to detect the hair care active substance concentration of the return air of the blowing object, thereby adjusting the hair drying according to the detected hair care active substance concentration value. The working parameters of the equipment’s motor and heating wire.

Specifically, the processor can periodically communicate with the hair care active substance detection unit according to a preconfigured acquisition cycle, thereby acquiring the hair care active substance concentration value detected by the hair care active substance detection unit.

It can be understood that a sending cycle can also be configured for the hair care active substance detection unit in advance, and the hair care active substance detection unit samples the hair care active substance concentration value of the return air from the blowing object in the return air channel according to the preset sampling period. Then, the hair care active substance concentration value can be sent to the processor by periodically communicating with the processor according to the sending period, so that the processor obtains the hair care active substance concentration value.

In order to avoid the detection deviation of the hair care active substance detection unit due to external interference, in some embodiments, the hair care active substance concentration value can also be a value after denoising or optimization processing. For example, the processor obtains After the hair care active substance concentration value at the current moment, the hair care active substance concentration value at the current moment and the average of all hair care active substance concentration values within a period of time before the current moment can be taken as the hair care active substance concentration value to improve Data accuracy.

In the embodiment of the present application, adjusting the current working parameters of the hair dryer according to the concentration value of the hair care active substance may further include:

If the hair care active substance concentration value is lower than the preset concentration lower limit, and the hair care active substance concentration value is lower than the concentration lower limit for a duration that reaches the preset replenishment time, a hair care active substance replenishment prompt will be issued, and the hair drying equipment will be controlled to stop. hair care procedures;

If the concentration value of the hair care active substance is not lower than the lower concentration limit and lower than the preset lower limit of hair care concentration, the current working parameters of the hair dryer are increased based on the third preset step;

If the hair care active substance concentration value is not lower than the lower limit of hair care concentration and not higher than the preset upper limit of hair care concentration, the current working parameters of the hair dryer are maintained;

If the hair care active substance concentration value is higher than the hair care concentration upper limit and not higher than the preset concentration upper limit, then reduce the current working parameters of the hair dryer based on the third preset step;

If the hair care active substance concentration value is higher than the concentration upper limit, the current working parameters of the hair dryer are reduced based on the fourth preset step size; the fourth preset step size is greater than the third preset step size.

In the embodiments of this application, a hair care concentration interval with the best concentration of hair care active substances in the hair care mode can be determined based on multiple experiments. The two endpoints of the hair care concentration interval can be determined as the lower limit of the hair care concentration and the hair care concentration range. The upper limit of the concentration, that is, in the hair care mode, if the concentration value of the hair care active molecules in the return air of the hair dryer is between the lower limit of the hair care concentration and the upper limit of the hair care concentration (including both endpoints), the motor and the motor of the hair dryer can be determined. The current working parameters of the heating wire meet the working parameter requirements in the hair care mode, and the current working parameters can be maintained to continue running.

In the embodiment of the present application, in addition to the hair care concentration range, a lower concentration limit and an upper concentration limit can also be set respectively. The lower concentration limit is smaller than the lower limit of the hair care concentration, and the upper concentration limit is greater than the upper limit of the hair care concentration.

Then when the concentration value of the hair care active substance is not less than the lower limit of concentration and less than the lower limit of hair care concentration, it can be determined that the current concentration value of the hair care active substance is low. At this time, the motor speed and heating wire power can be increased based on the third preset step size. , so that the hair care active substance concentration is within the hair care concentration range; it can be understood that the third preset step size may include an adjustment step size for the motor speed and an adjustment step size for the heating wire power;

When the hair care active substance concentration value is higher than the hair care concentration upper limit but not higher than the concentration upper limit, it can be determined that the current hair care active substance concentration value is too high. At this time, the motor speed and heat can be reduced based on the third preset step. Silk power, so that the concentration of hair care active substances is within the hair care concentration range;

If the concentration value of the hair care active substance is higher than the upper concentration limit, such as 70%, it can be considered that the concentration of the hair care active substance is too high. At this time, the motor speed and heating wire power can be quickly reduced based on the fourth preset step; adjust here The fourth presupposition is based on The step size should be larger than the third preset step size.

If the concentration value of the hair care active substance is lower than the lower concentration limit, such as 10%, and the concentration value of the hair care active substance is lower than the lower concentration limit for a duration that reaches the preset replenishment time, it can be determined that the hair care active substance is basically exhausted. At this time, Hair care active substance replenishment prompts such as voice broadcasts can be issued to remind users to replenish hair care active substances or replace care boxes. At the same time, if necessary, the hair dryer can also be controlled to stop hair care operations.

In the embodiment of the present application, the motor speed and the heating wire power are adjusted according to the concentration value of the hair care active substance fed back from the air returned by the hair dryer, which can ensure that during the hair care process, the concentration of the hair care active substance in the mixed gas blown out by the hair dryer is always within Hair care concentration range to ensure efficient hair care.

According to the performance of hair care actives, there are usually certain temperature restrictions on the environment in which hair care actives are used. Too high a temperature will cause damage to the hair care actives and affect the hair care effect, while too low a temperature will cause damage to the hair care actives. The volatile concentration of the active substance is insufficient to achieve a good hair care effect. Therefore, in the embodiment of the present application, the temperature detection unit at the air outlet of the device body, that is, the air outlet of the hair dryer can be used to detect the temperature at the air outlet. The air outlet temperature value is used to adjust the heating wire power, that is, the heating power, to ensure the hair care effect of the hair care active material.

In the embodiment of this application, if the air outlet temperature value is higher than the preset temperature upper limit, it can be considered that the current outlet air temperature is higher and the heating wire power is greater. At this time, the heating wire power can be reduced to reduce the air outlet temperature and ensure protection. The hair active material is not damaged by high temperature; if the air outlet temperature value is lower than the preset temperature lower limit, it can be considered that the current air outlet temperature is low, the power of the heating wire is small, and the volatilization concentration of the hair care active material is insufficient. At this time, the heating wire can be increased power to increase the air outlet temperature and ensure that the volatilization concentration of hair care active substances is within the hair care concentration range.

It can be understood that if the outlet air temperature value is between the lower temperature limit and the upper temperature limit, it can be determined that the current outlet air temperature is appropriate, and the current heating power of the heating wire can be maintained to continue running.

In the embodiments of the present application, the lower temperature limit and the upper temperature limit can be determined according to the properties of the hair care actives. Different hair care actives have different lower temperature limits and upper temperature limits.

During the hair care process, if the hair drying device is far away from the surface of the hair drying object, the blown mixed gas mixed with hair care active substances is easy to scatter around and cannot fully act on the surface of the hair drying object. Therefore, in some embodiments of the present application, The distance between the air outlet end and the surface of the blowing object can also be detected through a distance detection unit provided at the air outlet end of the hair dryer. Specifically, the processor can obtain the distance detection value detected by the distance detection unit during the hair care process. If the distance detection value is greater than the preset hair care distance threshold, such as 20cm, a voice announcement or other distance reduction prompt can be issued to remind the user to reduce the distance between the air outlet end and the surface of the blowing object, and reduce the distance between the air outlet and the blowing object. The wind end is close to the surface of the hair-drying object to ensure that the mixed gas mixed with hair care active substances fully acts on the surface of the hair-drying object to achieve the ideal hair care effect.

The working method of the hair drying equipment in the embodiment of the present application can enable the hair drying equipment to realize automatic control of wind temperature 40°C ~ 55°C and wind speed 5m/s ~ 10m/s, so as to ensure that the hair care active substances work at the appropriate temperature and volatilize The concentration of hair care active ingredients is appropriate to ensure hair care effect.

Based on the control method of the blowing equipment in the above embodiment, the present application also provides a blowing equipment. The blowing equipment is provided with an air inlet channel connected to the hair blowing environment. An environment detection unit is provided in the air inlet channel. The environment detection unit use It is used to detect the environmental status of the blowing environment; the blowing part of the blowing equipment is provided with a return air channel that collects the return air from the blowing object when the blowing equipment performs the blowing operation. A return air detection unit is provided in the return air channel, and the return air detection unit is used for Detect the return air status of the blowing object;

The blowing device may also include a processor 1501 and a memory 1502. The memory 1502 may be used to store a computer program. When the computer program is executed by the processor 1501, it may be used for the control method of the blowing device in any of the above embodiments.

In this embodiment of the present application, the processor 1501 may be a control unit built into the hair drying device, or may be an external control terminal independent of the hair drying device.

In an example, as shown in Figure 15, it shows a functional module schematic diagram of the hair drying device involved in the present application. Specifically:

The blowing device may include components such as a processor 1501 of one or more processing cores, a memory 1502 of one or more computer-readable storage media, a power supply 1503, and an input unit 1504. Those skilled in the art can understand that the structure shown in Figure 15 does not constitute a limitation on the blowing device. The blowing device may also include more or fewer components than shown in the figure, or combine certain components, or arrange different components. . in:

The processor 1501 is the control center of the hair drying equipment, using various interfaces and lines to connect various parts of the entire hair drying equipment, by running or executing software programs and/or unit modules stored in the memory 1502, and calling the software programs stored in the memory 1502. The data is used to perform various functions of the blower equipment and process the data to conduct overall monitoring of the blower equipment. Optionally, the processor 1501 may include one or more processing cores; the processor 1501 may be a central processing unit (Central Processing Unit, CPU), or other general-purpose processor, digital signal processor (Digital Signal Processor, DSP). ), Application Specific Integrated Circuit (ASIC), off-the-shelf programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can be any conventional processor, etc. Preferably, the processor 1501 can integrate an application processor and a modem processor, where the application processor mainly processes the operating system, User interfaces and applications, etc. The modem processor mainly handles wireless communications. It can be understood that the above modem processor may not be integrated into the processor 1501.

The memory 1502 can be used to store software programs and modules, and the processor 1501 executes various functional applications and data processing by running the software programs and modules stored in the memory 1502 . The memory 1502 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for a function, etc.; the storage data area may store data created according to the use of the hair drying device, etc. In addition, memory 1502 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 1502 may also include a memory controller to provide the processor 1501 with access to the memory 1502 .

The hair drying device may also include a power supply 1503 that supplies power to various components. Preferably, the power supply 1503 may be logically connected to the processor 1501 through a power management system, thereby managing charging, discharging, and power through the power management system. Consumption management and other functions. The power supply 1503 may also include one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

The blowing device may also include an input unit 1504 and an output unit 1505. The input unit 1504 may be used to receive input numeric or character information and generate keyboard, mouse, joystick, optical or trackball signals related to user settings and function control. enter.

Although not shown, the blowing device may also include a display unit and other units for displaying relevant information such as the device's working status, working mode, etc. to the user, which will not be described again here. Specifically in this application, the processor 1501 in the hair dryer will load the executable files corresponding to the processes of one or more application programs into the memory 1502 according to the following instructions, and the processor 1501 will run the executable files stored in the memory. 1502 applications to achieve various functions.

The control method and the blowing equipment provided by the embodiments of the present application have been introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for assistance. Understand the methods and core ideas of this application; at the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of this application. In summary, the contents of this specification should not understood as a limitation on this application.

Claims

A control method for blowing equipment, wherein the blowing equipment is provided with an air inlet channel connected to the blowing environment, and an environment detection unit is provided in the air inlet channel, and the environment detection unit is used to detect the environment of the blowing environment. state;

The blowing part of the blowing equipment is provided with a return air channel that collects the return air from the blowing object when the blowing equipment performs a blowing operation. A return air detection unit is provided in the return air channel, and the return air detection unit is used to Detecting the return air status of the return air from the blowing object; the method includes:

Obtain the environmental status information of the blowing environment detected by the environment detection unit;

Determine the reference working parameters of the blowing equipment according to the environmental status information, and control the blowing equipment to perform blowing operations based on the reference working parameters;

Obtain the return air status information of the return air from the blowing object detected by the return air detection unit when the blowing equipment performs a blowing operation based on the reference working parameters;

According to the return air status information, the reference working parameters are adjusted, and the blowing equipment is controlled to perform a blowing operation based on the adjusted working parameters.
The control method of the blowing equipment according to claim 1, wherein the adjusting the reference operating parameters according to the return air status information includes:

Determine the target operating parameters of the blowing device based on the return air status information and the current blowing duration of the blowing device;

The reference operating parameters are adjusted based on the preset adjustment parameters until the adjusted operating parameters match the target operating parameters.
The control method of the blowing equipment according to claim 2, wherein the return air status information includes a return air humidity detection value, and the reference operating parameters are adjusted based on the preset adjustment parameters until the adjusted operating parameters are equal to After the target working parameters are matched, the method further includes:

Obtain the current return air humidity detection value detected by the return air detection unit. If the current return air humidity detection value is greater than the preset return air humidity threshold, increase the target operating parameter based on the first preset step size;

If the current return air humidity detection value is not greater than the return air humidity threshold, the target operating parameter is reduced based on the second preset step size.
The control method of the blowing equipment according to claim 1, wherein a distance detection unit is further provided at the air outlet end of the air blowing part, and the distance detection unit is used to detect the distance between the air outlet end and the surface of the air blowing object. distance; the determination of the baseline operating parameters of the blower equipment according to the environmental status information includes:

Obtain the distance detection value between the air outlet end and the surface of the blowing object detected by the distance detection unit;

The reference operating parameters of the blowing device are determined according to the distance detection value and the environmental status information.
The control method of the air blowing equipment according to claim 4, wherein the air blowing equipment further includes a first temperature detection unit, the first temperature detection unit is used to detect the temperature of the heating wire of the air blowing equipment; the environment The status information includes an ambient temperature detection value, the return air status information includes a return air temperature detection value; the detection based on the distance The measured values and the environmental status information determine the baseline operating parameters of the blower equipment, including:

Obtain the temperature value of the heating wire detected by the first temperature detection unit;

If the difference between the temperature value and the ambient temperature detection value is not greater than the preset temperature difference threshold, and/or the difference between the temperature value and the return air temperature detection value is not greater than the temperature difference threshold, then according to the The distance detection value and the ambient temperature detection value determine the baseline operating parameters of the blower device.
The control method of the blowing equipment according to claim 4, wherein the environmental status information includes an ambient humidity detection value and an ambient temperature detection value; and the determination of the blowing equipment based on the distance detection value and the environmental status information Benchmark operating parameters include:

If the ambient humidity detection value is not greater than the preset humidity threshold, then the reference operating parameters of the blower device are determined based on the ambient temperature detection value and the distance detection value.
The control method of a hair blowing device according to claim 3, wherein the blowing device is a hair drying device, and the method further includes: obtaining the current return air humidity detection value detected by the return air detection unit.

When the current return air humidity detection value is less than the preset humidity threshold, count the duration for which the current return air humidity detection value continues to be less than the humidity threshold;

If the duration meets the preset hair care trigger condition, the current working state of the hair drying device is changed.
The control method of the hair drying device according to claim 7, wherein if the duration meets a preset hair care trigger condition, changing the current working state of the hair drying device includes:

Obtain the current cumulative duration of the hair drying operation of the hair drying equipment;

If the duration meets the preset linear decrease rule related to the current cumulative duration, the current working state of the blower is changed.
The control method of the air blowing equipment according to claim 8, wherein if the duration meets a preset linear decrease rule related to the current accumulated time, then changing the current working state of the air blowing equipment includes:

When the current accumulated duration is not greater than the preset duration threshold, and if the duration meets the preset linear decrease rule, the current working state of the blower device is changed;

When the current cumulative duration is greater than the duration threshold, and if the duration reaches a preset first duration, the current working state of the hair drying device is changed.
The control method of the hair drying device according to 7, wherein if the duration meets the preset hair care trigger condition, changing the current working state of the hair drying device includes:

If the duration reaches the preset second duration, the current working state of the blowing device is changed.
The control method of the blowing equipment according to any one of claims 7 to 10, wherein said changing the current working state of the blowing equipment includes:

Control the hair drying device to issue a hair care prompt and/or control the hair drying device to switch from the current working mode to the hair care mode.
The control method of a hair drying device according to claim 7, wherein the hair drying device further includes a hair care nozzle Accessories and an accessory detection unit. The accessory detection unit is provided on the equipment body of the hair drying equipment and is used to detect whether the hair care nozzle accessory is installed on the equipment body. The change of the current setting of the hair drying equipment is Working state, after that, the method includes:

Obtain the accessory detection signal for the accessory detection unit to detect whether the hair care nozzle accessory is installed on the device body;

If the accessory detection signal indicates that the hair care nozzle accessory is not installed on the device body, a hair care nozzle attachment installation prompt is issued;

If the accessory detection signal indicates that the hair care nozzle accessory is installed on the device body, the hair drying device is controlled to perform a hair care operation based on preset working parameters.
The control method of the hair drying device according to claim 12, wherein the hair care nozzle accessory includes a containing cavity, the containing cavity contains a volatile hair care active substance, and the controlling of the hair drying device is based on a preset The hair care operation is performed with the set working parameters, and then the method includes:

Statistics of the current duration of the accessory detection signal, and when the current duration exceeds the preset lower limit of statistical duration, update the cumulative usage duration of the hair care active substance according to the current duration;

When the updated cumulative usage time of the hair care active reaches a preset exhaustion time, a hair care active replenishment prompt is issued.
The control method of a hair drying device according to claim 12, wherein the hair care nozzle accessory includes a containing cavity containing a volatile hair care active substance, and the hair drying device further includes a The hair care active substance detection unit in the return air channel is used to detect the hair care active substance concentration of the return air of the blowing object; the control of the hair drying equipment is based on preset working parameters After performing hair care procedures, the method includes:

Obtain the hair care active substance concentration value of the return air of the blowing object detected by the hair care active substance detection unit;

The current operating parameters of the hair drying device are adjusted according to the hair care active concentration value.
The control method of the hair drying device according to claim 14, wherein the adjusting the current working parameters of the hair drying device according to the hair care active concentration value includes:

If the hair care active substance concentration value is lower than the preset concentration lower limit, and the hair care active substance concentration value is lower than the concentration lower limit for a duration that reaches the preset replenishment time, a hair care active substance replenishment prompt is issued. , controlling the hair drying equipment to stop performing hair care operations;

If the hair care active substance concentration value is not lower than the concentration lower limit and is lower than the preset hair care concentration lower limit, then increase the current working parameters of the hair dryer based on the third preset step size;

If the concentration value of the hair care active substance is not lower than the lower limit of the hair care concentration and not higher than the preset upper limit of the hair care concentration, the current working parameters of the hair dryer are maintained;

If the hair care active substance concentration value is higher than the hair care concentration upper limit and not higher than the preset concentration upper limit, then reduce the current working parameters of the hair dryer based on the third preset step size;

If the concentration value of the hair care active substance is higher than the upper concentration limit, the current operating parameters of the hair dryer are reduced based on the fourth preset step; the fourth preset step is greater than the third preset step. long.
The control method of a blower equipment according to claim 1, wherein said obtaining the environmental state information of the blower environment detected by the environment detection unit includes:

Get blowing instructions;

Acquire the environmental state information of the blowing environment detected by the environment detection unit in response to the blowing instruction; or extract the working mode information carried in the blowing instruction;

Determine the working mode of the blower device according to the working mode information;

When the working mode of the blowing device is the preset target mode, the environmental state information of the blowing environment detected by the environment detection unit is obtained.
A blowing device, wherein the blowing device is provided with an air inlet channel connected to the blowing environment, and an environment detection unit is provided in the air inlet channel, and the environment detection unit is used to detect the environmental state of the blowing environment;

The blowing part of the blowing equipment is provided with a return air channel that collects the return air from the blowing object when the blowing equipment performs a blowing operation. A return air detection unit is provided in the return air channel, and the return air detection unit is used to Detect the return air status of the air returned to the blowing object;

The hair blowing device further includes a memory and a processor, the memory is used to store a computer program, and when the computer program is executed by the processor, it is used to implement the control of the blowing device according to any one of claims 1-16. method.