Blowing mode adjustment method, control device and hair dryer

Abstract

The present application discloses a method for adjusting a blowing mode, a control device, and a hair dryer, the method comprising: switching to a smart mode when detecting that a wireless communication module has been successfully paired and connected with a terminal device; receiving a target parameter from the wireless communication module when switching to the smart mode; using the target parameter as a personalized blowing mode control parameter corresponding to the current user; the target parameter is data collected based on the user's historical usage behavior; detecting the user's hair humidity and temperature in real time, and determining the current corresponding stage of the hair dryer based on the current hair humidity and temperature; when detecting that the hair dryer has switched to a new stage, controlling the hair dryer to work according to the speed and heating power corresponding to the new stage based on the target parameter. The present application can identify the user's identity without occupying a large amount of storage capacity and computing resources of the hair dryer, and automatically switch to a blowing mode that conforms to the current user's usage habits at the corresponding stage.

Description

Technical Field

[0001] The present invention belongs to the technical field of smart home, and in particular relates to a blowing mode adjustment method, a control device and a hair dryer. Background Art

[0002] Smart home refers to setting corresponding home appliance control strategies according to the personal preferences or historical habits of different users in the family to provide personalized services to different users. With the popularization of the concept of smart home, more and more home appliances are incorporated into the smart home ecosystem. For hair dryers in the smart home ecosystem, it is necessary to set personalized wind speed and temperature of hair dryers according to the personal preferences of different family members. In order to realize personalized control strategies, hair dryers need to be able to identify the identities of different users, so as to provide personalized blowing modes for different users.

[0003] In the prior art, smart homes generally use biometric identification for identity recognition, such as the control method for home appliances disclosed in Document 1 (publication number CN108121211B), which identifies different users through face recognition, fingerprint recognition, etc., and realizes personalized control of home appliances for the current user, thereby improving the intelligence of home appliance control. It can be seen that the identity recognition method of the prior art smart home control solution requires adding a corresponding biometric identification hardware module to the home appliance, such as a fingerprint recognition module or a face recognition module, and performing data processing on the biometric information collected by the biometric identification hardware module to identify the user's identity.

[0004] However, the above-mentioned identity recognition method has the following shortcomings when applied to the intelligent control of hair dryers: 1. In order to record the identity authentication information of different users and a large amount of historical usage habit data, a large amount of storage capacity of the hair dryer main control module is also required. 2. When the hair dryer performs face recognition or fingerprint recognition, a large number of operations such as face image matching or fingerprint matching are required, resulting in a large amount of computing resources being occupied by the hair dryer main control module, which puts higher requirements on the computing performance of the hair dryer main control module. In addition, after identifying the user's identity, how to further provide more intelligent blowing mode control is also a direction that needs to be optimized in this field. Summary of the invention

[0005] The purpose of the present application is to solve at least one of the above problems and to provide a method for adjusting a hair drying mode, a control device and a hair dryer, which can identify the identity of the user without occupying a large amount of storage capacity and computing resources of the hair dryer, and after identifying the identity of the user, intelligently identify the stage of the user's hair drying and automatically switch to a hair drying mode that conforms to the current user's usage habits at the corresponding stage.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] In a first aspect, the present application provides a method for adjusting a blowing mode, comprising:

[0008] When it is detected that the wireless communication module has been successfully paired and connected with the terminal device, it switches to the smart mode;

[0009] When switching to the intelligent mode, the target parameters are received from the wireless communication module;

[0010] The target parameters are used as personalized hair drying mode control parameters corresponding to the current user; wherein the target parameters include the rotation speed and heating power corresponding to the hair dryer at each stage, and the stage of the hair dryer is determined by the hair humidity and temperature; the target parameters are data collected based on the user's historical usage behavior;

[0011] Detect the user's hair humidity and temperature in real time, and determine the current stage of the hair dryer based on the current hair humidity and temperature;

[0012] When it is detected that the hair dryer switches to a new stage, the hair dryer is controlled based on the target parameters to operate according to the rotation speed and heating power corresponding to the new stage.

[0013] In the second aspect, the present application provides a control device, which includes a main control module and an infrared temperature sensor, a first humidity sensor, a second humidity sensor, a first main pressure sensor, a second main pressure sensor, a first auxiliary pressure sensor, a second auxiliary pressure sensor, a ranging sensor, a motor drive module, a wireless communication module, and a bidirectional thyristor circuit, which are electrically connected to the main control module respectively; the main control module includes a memory, a processor, and a computer program stored in the memory, and the processor is used to execute the computer program to implement the steps of the above-mentioned blowing mode adjustment method.

[0014] In a third aspect, the present application provides a hair dryer, comprising the above-mentioned control device.

[0015] Beneficial effects:

[0016] 1. Compared with the problem of occupying a large amount of storage capacity and computing resources of the hair dryer in the biometric identification method used in the prior art smart home, the present application provides a method for adjusting the hair drying mode, which does not require the setting of a camera or fingerprint module to obtain biometric information for identity identification. It only requires different users to connect their mobile phones to the hair dryer through a wireless communication module such as Bluetooth to complete the identity identification, and can identify the user's identity without occupying a large amount of storage capacity and computing resources of the hair dryer.

[0017] 2. Furthermore, after connecting to the user's mobile phone, it not only automatically completes the user's identity recognition but also automatically switches to the smart mode, and actively transmits the personalized blowing mode control parameters (i.e., target parameters) corresponding to the current user to the hair dryer. The hair dryer can then automatically perform smart hair blowing according to these target parameters without the user having to perform tedious operations.

[0018] 3. In addition, after identifying the user's identity, it can also intelligently identify the stage of the user's hair blowing by detecting the temperature and humidity of the user's hair during the process of blowing the hair, and automatically switch to the blowing mode that conforms to the current user's usage habits at the corresponding stage (that is, control the hair dryer to work at the corresponding speed and heating power), providing an automatic hair blowing experience that conforms to the user's historical usage habits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the technical problems solved by the present invention, the technical means adopted and the technical effects achieved more clearly, the specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, it should be noted that the drawings described below are only drawings of exemplary embodiments of the present invention, and those skilled in the art can obtain drawings of other embodiments based on these drawings without creative work.

[0020] Figure 1 A schematic flow chart of a method for adjusting a blowing mode provided in one embodiment of the present invention;

[0021] Figure 2 A schematic flow chart of a method for adjusting a blowing mode provided in one embodiment of the present invention;

[0022] Figure 3 A schematic flow chart of a method for adjusting a blowing mode provided in one embodiment of the present invention;

[0023] Figure 4 A hardware framework diagram of a control device provided by an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of the overall structure of a hair dryer provided by an embodiment of the present invention;

[0025] Figure 6 A schematic structural diagram of a first pressure detection button from one viewing angle provided by an embodiment of the present invention;

[0026] Figure 7 for Figure 6 A cross-sectional view of a first pressure detection button;

[0027] Figure 8 A structural schematic diagram of a first pressure detection button provided by an embodiment of the present invention from another perspective;

[0028] Fig. 9 A cross-sectional view of a first linear motion mechanism and a first pressure detection button in a separated state in one embodiment of the present invention;

[0029] Fig.10 A cross-sectional view of an embodiment of the present invention when the first linear motion mechanism and the first pressure detection button just come into contact and enter a connection state;

[0030] Fig.11 It is a cross-sectional view of an embodiment of the present invention in which the first linear motion mechanism and the first pressure detection button are in a connected state and drive the first pressure detection button to rotate a certain angle.

[0031] Figure numerals: 10, first supporting panel; 101, outer side surface; 102, inner side surface; 11, first upper frame; 12, first lower frame; 13, first axial hole; 14, through hole; 21, first auxiliary pressure sensor; 22, first main pressure sensor; 31, first spring; 32, first column; 40, coupling seat; 41, coupling groove; 50, pressure rod; 51, rod head; 7, cylinder; 71, air inlet; 72, air outlet; 73, infrared temperature sensor; 74, first humidity sensor; 75, second humidity sensor; 8, handle; 81, display screen; 82, first button; 83, second button; 84, first pressure detection button; 85, second pressure detection button; 86, first convex shell portion; 87, second convex shell portion. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In order to integrate the hair dryer into the smart home ecosystem, it is necessary to add an identity recognition function to the hair dryer so as to provide personalized services to different users in the future. However, the traditional biometric identity recognition solution requires the hair dryer to integrate a main control module (i.e., MCU) with larger storage capacity and more powerful computing performance. Therefore, this application needs to provide an identity recognition solution that does not require the integration of a main control module with larger storage capacity and more powerful computing performance.

[0034] Based on this, the present application provides a method for adjusting a hair drying mode, a control device, and a hair dryer, which can identify the user's identity without occupying a large amount of storage capacity and computing resources of the hair dryer, and intelligently identify the stage of the user's hair drying after identifying the user's identity, and automatically switch to a hair drying mode that conforms to the current user's usage habits at the corresponding stage. The present application refers to the combination of the rotation speed of the hair dryer and the power of the electric heating wire during the hair drying process as a hair drying mode, and different hair drying modes correspond to different rotation speeds and electric heating wire powers.

[0035] The following describes in detail how the present application achieves the above-mentioned invention objectives in conjunction with the accompanying drawings and specific embodiments.

[0036] Figure 5 FIG. 2 shows the overall structure of a hair dryer provided in one embodiment. Figure 5As shown, the hair dryer includes a barrel at the top and a handle 8 at the bottom, the front end of the barrel is an air outlet 72, the rear end is an air inlet 71, a blower motor and an air duct are arranged inside the barrel, an electric heating wire is arranged inside the air duct, and the two ends of the air duct are connected to the air inlet 71 and the air outlet 72. When the blower motor rotates, it drives the air to enter the air duct from the air inlet 71, passes through the electric heating wire to heat the air, and then flows out from the air outlet 72 to form hot air for drying hair. The temperature of the hot air can be controlled by adjusting the heating power of the electric heating wire, and the wind speed can be controlled by adjusting the speed of the blower motor. The blowing mode referred to in this application is jointly determined by the speed of the blower motor of the hair dryer and the heating power of the electric heating wire. If any parameter of the speed of the blower motor of the hair dryer or the heating power of the electric heating wire changes, the state of the blowing mode changes. For the sake of simplicity, the speed of the blower motor of the hair dryer or the heating power of the electric heating wire is also expressed as the speed or heating power of the hair dryer in this application. An infrared temperature sensor 73 is provided at the top of the front end of the barrel, and a first humidity sensor 74 is provided at the bottom of the front end of the barrel. When the wind blown out of the air outlet 72 acts on the hair, the hair and the moisture on the hair are blown, the humidity near the user's head increases, the first humidity sensor 74 is very close to the head, and the humidity value detected by the first humidity sensor 74 increases. As the hair becomes drier, the humidity near the user's head decreases, and the humidity value detected by the first humidity sensor 74 decreases. The second humidity sensor 75 is located at the rear end of the barrel, far from the head, and because the wind blown out of the air inlet 71 moves in a direction away from the second humidity sensor 75, the moisture in the hair will be driven away from the second humidity sensor 75 by the wind, so the second humidity sensor 75 mainly detects the humidity of the environment. A distance sensor is also provided on the cylinder body. The distance sensor can be implemented by a TOF infrared distance measurement module. The light emitted by the distance sensor is directed in the same direction as the air outlet 72. When the user blows his hair, the distance between the user's head and the distance sensor can be measured. According to the assembly distance between the distance sensor and the first humidity sensor 74, the distance between the first humidity sensor 74 and the head can be calculated. A display screen 81 and a first button 82 and a second button 83 are provided on the side of the handle 8 of the hair dryer. From the top to the bottom, there are a first pressure detection button 84 and a second pressure detection button 85 on the front of the handle 8. There is a pressure sensor on the second pressure detection button 85, which can control the heating power of the heating wire in response to the pressure of the user. There is also a pressure sensor on the first pressure detection button 84, which can control the rotation speed of the hair dryer in response to the pressure of the user.

[0037] Figure 4 FIG. 2 shows a hardware framework diagram of a control device for a hair dryer provided in an embodiment. Figure 4As shown, the control device includes a main control module (i.e., MCU) and buttons (including a first button 82 and a second button 83) electrically connected to the MCU, a display screen 81, an infrared temperature sensor 73, a first humidity sensor 74, a second humidity sensor 75, a first main pressure sensor 22, a second main pressure sensor, a first auxiliary pressure sensor 21, a second auxiliary pressure sensor, a distance sensor, a Bluetooth communication module, a bidirectional thyristor circuit, and three L298N motor drive modules. Among them, the Bluetooth communication module is used to establish a connection with a terminal such as a mobile phone and transmit data. The three L298N motor drive modules are respectively used to drive the blower motor, the first motor, and the second motor. The L298 motor drive module is controlled by the MCU, and the MCU controls the speed of the blower motor by outputting a PWM signal. The bidirectional thyristor circuit is controlled by the MCU to control the conduction and disconnection of the heating wire. The AC 220V voltage is used to power the heating wire through the bidirectional thyristor. The MCU controls the conduction time of the bidirectional thyristor in one cycle by outputting a PWM signal, thereby controlling the heating power of the heating wire, thereby realizing intelligent personalized control based on the user's historical usage habits.

[0038] Figure 6 and Figure 8 The three-dimensional structure of the first pressure detection button 84 at different angles in one embodiment is shown. Figure 7 for Figure 6 Cross-sectional view from perspective. Figure 6 , 78, the first pressure detection button 84 includes a first support panel 10, a first main pressure sensor 22, a first auxiliary pressure sensor 21, a first spring 31 and a first column 32; the first support panel 10 is rotatably connected to the shell of the hair dryer handle 8 through the first axial hole 13, and a first upper frame 11 matching the shape of the first auxiliary pressure sensor 21 is formed on the outer side surface 101, and the first auxiliary pressure sensor 21 is fixed in a first upper mounting groove formed by the first upper frame 11 on the outer side surface 101 of the first support panel 10, and a first upper frame 11 matching the shape of the first auxiliary pressure sensor 21 is formed on the inner side surface 102. The main pressure sensor 22 matches the first lower frame 12 in shape, and the first main pressure sensor 22 is fixed in the first lower mounting groove formed by the first lower frame 12 of the inner side 102 of the first support panel 10. The first end of the first spring 31 is fixedly connected to the outer shell of the hair dryer handle 8, and the second end of the first spring 31 is fixed on the first column 32. The first column 32 abuts against the sensing area of ​​the first main pressure sensor 22. The first spring 31 can deform in response to the user's pressing action on the first pressure detection button 84 to apply corresponding elastic force to the first main pressure sensor 22. Specifically, the first main pressure sensor 22 and the first auxiliary pressure sensor 21 are both thin film pressure sensors, and the first column 32 is a cylindrical structure made of plastic material, which is used to evenly apply the elastic force generated by the first spring 31 to the sensing area of ​​the first main pressure sensor 22.

[0039] The second pressure detection button 85 has the same structure as the first pressure detection button 84. The second pressure detection button 85 includes a second support panel, a second main pressure sensor, a second auxiliary pressure sensor, a second spring and a second column; the second support panel is rotatably connected to the housing of the hair dryer handle 8 through a second axial hole, a second upper frame matching the shape of the second auxiliary pressure sensor is formed on the outer side surface, the second auxiliary pressure sensor is fixed in a second upper mounting groove formed by the second upper frame on the outer side surface of the second support panel, a second lower frame matching the shape of the second main pressure sensor is formed on the inner side surface, the second main pressure sensor is fixed in a second lower mounting groove formed by the second lower frame on the inner side surface of the second support panel, the first end of the second spring is fixedly connected to the housing of the hair dryer handle 8, the second end of the second spring is fixed on the second column, the second column abuts against the sensing area of ​​the second main pressure sensor, and the second spring can deform in response to the user's pressing action on the second pressure detection button 85 to apply corresponding elastic force to the second main pressure sensor. Specifically, the second main pressure sensor and the second auxiliary pressure sensor are both thin film pressure sensors, and the second column is a cylindrical structure made of plastic material, which is used to evenly apply the elastic force generated by the second spring to the sensing area of ​​the second main pressure sensor.

[0040] Fig. 9 , Fig.10 and Fig.11 The figure shows the connection relationship between the pressure rod 50 and the first pressure detection button 84 in the linear motion mechanism in one embodiment. Specifically, in some embodiments, the hair dryer further includes a first linear motion mechanism driven by a first motor and a second linear motion mechanism driven by a second motor. Specifically, the first linear motion mechanism includes a first driving part, a first transmission part and a first execution part, the first driving part is the first motor, the first execution part is the pressure rod 50, and the first transmission part is a reducer and a linear actuator. Figure 5 As shown, the first linear motion mechanism is located inside the first convex shell portion 86. Specifically, the reducer can be composed of a plurality of meshing gears, and the linear brake can be a screw pair or a gear rack, so as to convert the rotation of the first motor into linear motion, and the pressure rod 50 is fixedly connected to the screw nut or the gear rack for linear motion, so as to realize the linear motion of the pressure rod 50. Fig. 9 As shown, the end of the first support panel 10 away from the first shaft hole 13 is provided with a through hole 14 that penetrates the upper side and the lower side, and a coupling seat 40 fixedly connected to the first support panel 10 is provided below the through hole 14. A coupling groove 41 is provided on the surface of the coupling seat 40 that contacts the first support panel 10, and the position of the opening of the coupling groove 41 is directly opposite to the through hole 14, so that the rod head 51 part of the pressure rod 50 can pass through the through hole 14 and enter the coupling groove 41 in sequence when performing a linear motion from the outside to the inside, and finally the rod head 51 abuts against the bottom of the coupling groove 41 (as shown in FIG. Fig.10 As shown in the state, when the pressure rod 50 continues to move inward, it will drive the first pressure detection button 84 to rotate inward (as shown in the state shown in the Fig.11 ), and because the rod head 51 abuts against the bottom of the coupling groove 41, the first pressure detection button 84 cannot rotate toward the outside of the housing. In summary, the first linear motion mechanism can perform linear motion in a direction perpendicular to the housing surface of the hair dryer handle 8, and connect or separate from the outer side surface 101 of the first support panel 10 when performing linear motion. When the first linear motion mechanism is connected to the outer side surface 101 of the first support panel 10, it can drive the first support panel 10 to rotate toward the inside of the housing of the hair dryer handle 8 and restrict the first support panel 10 from rotating toward the outside of the housing of the hair dryer handle 8.

[0041] Specifically, the rod head 51 of the pressure rod 50 is a curved surface, and the bottom of the coupling groove 41 is also a curved surface, and the curvature of the two curved surfaces is the same, so that the rod head 51 of the pressure rod 50 can fit tightly with the bottom of the coupling groove 41, so that the position where the rod head 51 contacts the bottom of the coupling groove 41 each time is consistent, thereby ensuring that the number of steps required for the rod head 51 to reach the bottom of the coupling groove 41 from the starting position driven by the first motor each time is the same. In addition, the inner side wall of the coupling groove 41 surrounds an inverted cone-shaped space, and the inverted cone-shaped space gradually widens from the bottom of the coupling groove 41 to the opening of the coupling groove 41, so that when the first support panel 10 rotates around the first rotating shaft passing through the first shaft hole 13, the inner side wall of the coupling groove 41 will not hinder the pressure rod 50, so that the rod head 51 can still be in close contact with the bottom of the coupling groove 41, ensuring that the number of steps required for the rod head 51 to reach the bottom of the coupling groove 41 from the starting position driven by the first motor each time is the same. Specifically, the hole diameter on the side where the through hole 14 contacts the opening of the coupling groove 41 is the same as the diameter of the opening of the coupling groove 41, and the hole diameter on the other side is larger than the diameter of the opening of the coupling groove 41. Preferably, the inclination degree of the inner wall of the through hole 14 is the same as the inclination degree of the inner wall of the coupling groove 41.

[0042] The second linear motion mechanism has the same structure as the first linear motion mechanism. Specifically, the second linear motion mechanism includes a second driving part, a second transmission part and a second execution part, the second driving part is a second motor, the second execution part is also a pressure rod, and the second transmission part is a reducer and a linear actuator. The second linear motion mechanism is located inside the second convex shell. Specifically, the reducer can be composed of a number of meshing gears, and the linear brake can use a screw pair or a gear rack to convert the rotation of the second motor into linear motion. The pressure rod is fixedly connected to the screw nut or rack for linear motion, thereby realizing the linear motion of the pressure rod. A through hole penetrating the upper side and the lower side is provided at one end of the second support panel away from the second axial hole, and a coupling seat fixedly connected to the second support panel is provided below the through hole, and a coupling groove is provided on the surface of the coupling seat contacting the second support panel, and the position of the coupling groove opening is directly opposite to the through hole, so that the rod head part of the pressure rod can pass through the through hole in sequence and enter the coupling groove when performing linear motion from the outside to the inside, and finally the rod head abuts against the bottom of the coupling groove, when the pressure rod continues to move inward, it will drive the second pressure detection button 85 to rotate inward, and because the rod head abuts against the bottom of the coupling groove, the second pressure detection button 85 cannot rotate to the outside of the shell. In general, the second linear motion mechanism can perform linear motion in a direction perpendicular to the shell surface of the hair dryer handle 8, and is connected or separated from the outer side surface of the second support panel when performing linear motion, and when the second linear motion mechanism is connected to the outer side surface of the second support panel, it can drive the second support panel to rotate inside the shell of the hair dryer handle 8 and limit the second support panel from rotating outside the shell of the hair dryer handle 8.

[0043] In the second pressure detection button 85, the rod head 51 of the pressure rod 50 is a curved surface, and the bottom of the coupling groove 41 is also a curved surface, and the curvature of the two curved surfaces is the same, so that the rod head 51 of the pressure rod 50 can fit tightly with the bottom of the coupling groove 41, so that the position where the rod head 51 contacts the bottom of the coupling groove 41 each time is consistent, thereby ensuring that the number of steps required for the rod head 51 to reach the bottom of the coupling groove 41 from the starting position driven by the second motor each time is the same. In addition, the inner side wall of the coupling groove 41 surrounds an inverted conical space, and the inverted conical space gradually widens from the bottom of the coupling groove 41 to the opening of the coupling groove 41, so that when the second support panel rotates around the second rotating shaft passing through the second shaft hole, the inner side wall of the coupling groove 41 will not hinder the pressure rod 50, so that the rod head 51 can still be close to the bottom of the coupling groove 41, ensuring that the number of steps required for the rod head 51 to reach the bottom of the coupling groove 41 from the starting position driven by the second motor each time is the same. Specifically, the hole diameter on the side where the through hole 14 contacts the opening of the coupling groove 41 is the same as the diameter of the opening of the coupling groove 41, and the hole diameter on the other side is larger than the diameter of the opening of the coupling groove 41. Preferably, the inclination degree of the inner wall of the through hole 14 is the same as the inclination degree of the inner wall of the coupling groove 41.

[0044] The blowing mode adjustment method provided in the following embodiments is applied to the hair dryer and the control device provided in the above embodiments to realize intelligent control of the blowing mode.

[0045] Specifically, Figure 1 As shown, in one embodiment, a method for adjusting a blowing mode is provided, the method comprising:

[0046] Step S202, when it is detected that the wireless communication module has been successfully paired and connected with the terminal device, switching to the smart mode.

[0047] When the Bluetooth communication module of the hair dryer is not connected to the mobile phone, it is in manual mode, and the user manually controls the speed and heating power of the hair drying process. When the Bluetooth communication module of the hair dryer is connected to the mobile phone, it is in smart mode, and the hair drying process is intelligently controlled according to the target parameters received from the Bluetooth module.

[0048] Step S204, when switching to the smart mode, receiving target parameters from the wireless communication module.

[0049] Step S206, using the target parameters as personalized hair-drying mode control parameters corresponding to the current user; wherein the target parameters include the rotation speed and heating power corresponding to the hair dryer in each stage, and the stage of the hair dryer is jointly determined by the hair humidity and temperature; the target parameters are data collected based on the user's historical usage behavior.

[0050] The personalized hair drying mode control parameters of different users are different. For example, user A is used to sitting by the bed to dry his hair. In the early stage, the wind speed will be controlled to be relatively low to prevent water droplets from being blown onto the quilt, and the temperature will be relatively high to speed up hair drying. Later, as the hair gradually becomes dry, the wind speed will be increased to speed up hair drying, and the temperature will be gradually reduced to avoid hair damage caused by long-term high-temperature hair drying. User B is used to taking a shower very late, so he usually blows his hair late at night. In order to avoid noise affecting his family, he usually uses low wind speed to dry his hair throughout the process. The temperature control strategy still uses step-by-step temperature reduction to avoid hair damage caused by long-term high-temperature hair drying. It can be seen that different users generally have the need to adjust the hair drying mode when using a hair dryer to dry their hair, and different users have different strategies for adjusting the hair drying mode.

[0051] In this step, the main control module will load the received target parameters into the memory. After the loading is completed, it will start to control the speed and heating power according to the target parameters.

[0052] Step S208, detecting the humidity and temperature of the user's hair in real time, and determining the current corresponding stage of the hair dryer based on the current hair humidity and temperature.

[0053] For example, if the hair dryer has passed through several fixed gears of speed and heating power, for example, there are three speed gears, namely 50,000 rpm, 80,000 rpm and 100,000 rpm, and three heating power gears, namely 500w, 300w and 150w. It is detected that the current hair humidity is 80% and the temperature is 30 degrees, which is determined as the first stage. It is detected that the current hair humidity is 50% and the temperature is 40 degrees, which is determined as the second stage. It is detected that the current hair humidity is 30% and the temperature is 45 degrees, which is determined as the third stage. These different stages are determined by collecting the user's historical usage behavior. For example, when the user is in teaching mode, the hair dryer is connected to the mobile phone app via Bluetooth. The hair dryer transmits various data of the hair blowing process to the mobile phone app via Bluetooth at all times, so that the mobile phone app can process the data according to the designed program. If the user switches the speed and heating power of the hair dryer when the hair humidity reaches 80% and the temperature reaches 30 degrees, for example, the speed switches from 50,000 rpm to 80,000 rpm and the heating power switches from 500w to 300w, the mobile phone app connected via Bluetooth will monitor these data at all times and judge that the user switched the blowing mode for the first time when the hair humidity reached 80% and the temperature reached 30 degrees in the teaching mode, so the hair humidity reached 80% and the temperature reached 30 degrees is set as the first stage. The other stages are similar. The user's target parameters can be collected through the user's historical usage behavior in the teaching mode, and the hair dryer can learn the user's usage habits, and then perform intelligent personalized control directly according to the user's usage habits.

[0054] Step S210, when it is detected that the hair dryer switches to a new stage, the hair dryer is controlled to operate according to the rotation speed and heating power corresponding to the new stage based on the target parameters.

[0055] For example, when it is detected that the current hair humidity reaches 50% and the temperature reaches 40 degrees, it is determined to switch to the second stage. According to the speed and heating power recorded in the teaching mode corresponding to the second stage in the target parameters, the speed is controlled to switch from 80,000 rpm to 90,000 rpm, and the heating power is switched from 300w to 200w.

[0056] Compared with the problem of occupying a large amount of storage capacity and computing resources of the hair dryer in the biometric identification method used in the smart home in the prior art, the present application provides a method for adjusting the hair drying mode, which does not require the use of a camera or fingerprint module to obtain biometric information for identification. Different users only need to connect their mobile phones to the hair dryer through wireless communication modules such as Bluetooth to complete the identification, and can identify the user's identity without occupying a large amount of storage capacity and computing resources of the hair dryer. Further, after connecting the user's mobile phone, not only the user's identity is automatically identified, but also the hair dryer is automatically switched to the smart mode, and the personalized hair drying mode control parameters (i.e., target parameters) corresponding to the current user are actively transmitted to the hair dryer, and the subsequent hair dryer can automatically perform the intelligent hair drying work according to these target parameters without the user having to perform cumbersome operations. In addition, after identifying the user's identity, the hair drying stage of the user can be intelligently identified by detecting the temperature and humidity of the hair during the hair drying process, and automatically switch to the hair drying mode that conforms to the current user's usage habits (i.e., the hair dryer is controlled to work according to the corresponding speed and heating power) at the corresponding stage, providing an automatic hair drying experience that conforms to the user's historical usage habits.

[0057] Specifically, in this example, the speed of the blower motor is steplessly adjusted by the first pressure detection button 84, and the heating power is steplessly adjusted by the second pressure detection button 85. The target parameters are obtained based on the user's historical usage behavior, specifically including:

[0058] Step S302, entering the teaching mode in the intelligent mode, and when it is detected that the user changes the blowing mode from the previous state to the new state, the hair humidity and temperature of the new state are used as the key hair humidity and temperature; the blowing mode is jointly determined by the rotation speed and heating power of the hair dryer, and the state of the blowing mode changes when any parameter of the rotation speed or heating power of the hair dryer changes.

[0059] When the hair dryer is connected to a mobile phone via Bluetooth, it is in smart mode. In this state, the user can choose to enter the teaching mode through the mobile phone app and start collecting target parameters that meet the user's habits.

[0060] Specifically, in the teaching mode, the speed of the hair dryer in the previous state is 50,000 rpm, and the heating power is 500w. It is detected that it has switched to a new state. At this time, the speed of the hair dryer is 80,000 rpm and the heating power is 300w. At this time, the hair dryer detects that the hair humidity reaches 80% and the temperature reaches 30 degrees. 80% and 30 are used as the key hair humidity and temperature.

[0061] Step S304, when it is detected that the blowing mode is maintained in a new state for more than a preset time, the rotation speed and heating power of the hair dryer corresponding to the new state are used as the key rotation speed and heating power.

[0062] In one example, the preset time length is 3 seconds. If it is detected that the hair dryer speed is 80,000 rpm and the heating power is 300W for more than 3 seconds, 80,000 and 300 are used as the key speed and heating power.

[0063] Step S306, the four parameters of key hair humidity and temperature, key rotation speed and heating power are associated as target parameters corresponding to the same stage and transmitted to the mobile phone through the wireless communication module for storage.

[0064] Therefore, the key hair humidity and temperature are 80% and 30, and the key rotation speed and heating power are 80000 and 300, which are associated as the target parameters corresponding to the same stage. Since the hair dryer rotation speed is 80000 rpm and the heating power is 300w, it is the first time to maintain the blowing mode for more than 3 seconds, so this stage is the first stage. Similarly, the data of each stage are recorded and the target parameters are finally obtained.

[0065] It should be noted that when the user blows the hair in the teaching mode, the user cannot know the accurate hair humidity and temperature. Generally, the user makes a judgment by constantly shaking the hair with the hand. When the current hair humidity becomes low and the temperature becomes high to meet their own feelings, they feel that the rotation speed and heating power of the hair dryer should be switched. And when the user switches the rotation speed and heating power of the hair dryer, they generally do not adjust according to the specific rotation speed and heating power of the hair dryer, but adjust the current wind speed and temperature by adjusting the strength of pressing the first pressure detection button 84 and the second pressure detection button 85, and whether they feel comfortable to adjust. Therefore, the user does not need to pay special attention to the hair humidity value, temperature value and the rotation speed and heating power value of the hair dryer detected by the hair dryer in the teaching mode. It only needs to use the hair dryer according to the normal process of blowing hair according to their own usage habits. Therefore, the solution provided by this embodiment can collect the target parameters based on the user's historical usage behavior. At the same time, the collected target parameters are directly transmitted to the mobile phone app through the Bluetooth image communication module without occupying the storage space of the hair dryer main control module.

[0066] Specifically, the infrared temperature sensor 73 is used to determine the current hair temperature, the distance sensor is used to measure the distance value D between the air outlet 72 and the hair, and the first humidity sensor 74 is arranged at the periphery of the air outlet 72 and is used to measure the first humidity value at the periphery of the air outlet 72. The second humidity sensor 75 is used to measure the second humidity value of the environment , the method further comprises:

[0067] Use the following steps to check the current hair humidity:

[0068] Step A1, obtaining a distance value D from a distance measuring sensor and obtaining a first humidity value from a first humidity sensor 74 , the second humidity sensor 75 obtains the second humidity value And use the three together as monitoring data at the current moment;

[0069] Step A2: Input the current monitoring data into Formula 1 to calculate the current hair humidity. ;

[0070] Formula 1:

[0071] in, is the preset reference distance corresponding to the current stage, is the preset reference ambient humidity, and k is the preset coefficient.

[0072] Theoretically, if the user can keep the distance between the first humidity sensor 74 and the user's head and the ambient humidity consistent with the distance between the first humidity sensor 74 and the user's head and the ambient humidity when the user just switches to the first stage in the teaching mode during the first stage of using the hair dryer, then the first humidity value can be directly measured using the first humidity sensor 74. As the current hair humidity However, when the user is using the hair dryer in the first stage, the distance between the first humidity sensor 74 and the user's head may change, and the ambient humidity may also be different each time the user uses the hair dryer. Therefore, it is necessary to determine the distance D between the first humidity sensor 74 and the user's head and the ambient humidity. The first humidity value detected by the first humidity sensor 74 Make corrections to get the current hair humidity .

[0073] For example, referring to Formula 1, when a user is using a hair dryer and is in the first stage: if the distance D between the first humidity sensor 74 and the user's head and the ambient humidity The distance between the first humidity sensor 74 and the user's head when the teaching mode is just switched to the first stage and ambient humidity If the first humidity value detected by the first humidity sensor 74 is consistent, Equal to the reference humidity value when the teaching mode is just switched to the first stage. At this time, the compensation coefficient =1, then = .

[0074] If the distance D between the first humidity sensor 74 and the user's head is greater than the reference distance between the first humidity sensor 74 and the user's head when the teaching mode is just switched to the first stage , it can be seen that even though the degree of wetness of the hair is the same as when the teaching mode just switched to the first stage, due to D> , so in = In the case of , the amount of water vapor on the hair blown by the hair dryer that reaches the first humidity sensor 74 is less than the amount when the teaching mode is just switched to the first stage. At this time, the first humidity value detected by the first humidity sensor 74 is lower than the reference humidity value when the teaching mode is just switched to the first stage, so the first humidity value needs to be Multiply by a compensation factor greater than 1 Afterwards , otherwise, if D< , the amount of water vapor on the hair blown by the hair dryer that reaches the first humidity sensor 74 is greater than the amount when the teaching mode is just switched to the first stage. At this time, the first humidity value detected by the first humidity sensor 74 is greater than the reference humidity value when the teaching mode is just switched to the first stage, so the first humidity value needs to be Multiply by a compensation factor less than 1 Afterwards In this way, it can be more in line with the reference humidity value when it just switches to the first stage in the teaching mode, thereby improving the accuracy of judging whether the first stage has been reached during the use of the hair dryer.

[0075] If the ambient humidity Greater than the reference ambient humidity when the teaching mode is just switched to the first stage , we can see that even though the hair is still wet at this time, it is still wet at the same level as when the teaching mode is switched to the first stage. > , so in D = In this case, due to the high humidity in the environment, there is more water vapor in the air. At this time, the first humidity value detected by the first humidity sensor 74 is is greater than the reference humidity value when the teaching mode is just switched to the first stage, so the first humidity value needs to be Multiply by a compensation factor less than 1 Afterwards , on the contrary, if < At this time, the first humidity value detected by the first humidity sensor 74 is is lower than the reference humidity value when the teaching mode is just switched to the first stage, so the first humidity value needs to be Multiply by a compensation factor greater than 1 Afterwards In this way, it can be more in line with the reference humidity value when it just switches to the first stage in the teaching mode, thereby improving the accuracy of judging whether the first stage has been reached during the use of the hair dryer.

[0076] As shown above, a large amount of data is tested during the manufacturing stage to fit the coefficient k corresponding to the error value that meets the error threshold. Specifically, for each group ( , ), multiple groups of test data are obtained through testing, each group of test data includes a distance value D obtained from the distance measuring sensor and a first humidity value obtained from the first humidity sensor 74 , the second humidity sensor 75 obtains the second humidity value , and when the ambient humidity is , the distance value D obtained from the distance measuring sensor = When , we get the reference humidity value H', a total of four data. Then define the model function Then, nonlinear regression is used to fit the model. When the error meets the error threshold requirement, each group of this group ( , ) The final coefficient k. Specifically, the model can be fitted using 'nlinfit' in MATLAB. The specific process is an existing technology and will not be described here. , ) corresponds to different stages, and a corresponding set of ( , ) corresponding to the coefficient k, thereby obtaining the formula 1 corresponding to the user at this stage.

[0077] Specifically, the first pressure detection button 84 is used to output first pressure data in response to user pressing, and the first pressure data includes a first main pressure value detected by the first main pressure sensor 22 and a first auxiliary pressure value detected by the first auxiliary pressure sensor 21; the second pressure detection button 85 is used to output second pressure data in response to user pressing, and the second pressure data includes a second main pressure value detected by the second main pressure sensor and a second auxiliary pressure value detected by the second auxiliary pressure sensor.

[0078] The method further comprises:

[0079] adjusting the rotation speed of the hair dryer in real time in response to changes in the first pressure data;

[0080] The heating power of the hair dryer is adjusted in real time in response to the change of the second pressure data.

[0081] The first pressure detection button 84 and the second pressure detection button 85 are used to achieve stepless adjustment of the wind speed and hot air temperature of the hair dryer.

[0082] Specifically, a mapping relationship between the first pressure data and the rotational speed can be established, for example, the rotational speed is directly proportional or inversely proportional to the first main pressure value, and a mapping relationship between the second pressure data and the heating power can be established, for example, the heating power is directly proportional or inversely proportional to the second main pressure value. By establishing the above mapping relationship, the user can adjust the rotational speed and heating power by changing the force of pressing the first pressure detection button 84 and the second pressure detection button 85 or the position of the buttons rotating around the axis.

[0083] like Fig. 9 As shown, at this time, the first linear motion mechanism is at the starting position, that is, the pressure rod 50 is at the starting position, at this time, the pressure rod 50 and the first support panel 10 are in a separated state, and at this time, the number of steps of the first motor is zero. When the pressure rod 50 is at the starting position, the first motor starts to rotate forward and reaches Fig.10 The connecting state is shown, and then the rotation continues. When the rotation reaches the first step, the driving rod 50 moves from the outside to the inside along the axial direction of the rod 50 to reach Fig.11 The first position shown. Fig.11As shown, the state of the first pressure detection button 84 at this time causes the first spring 31 to be compressed and deformed, so the first main pressure sensor 22 abutting against the first column 32 is subjected to the elastic force applied by the first spring 31, and the first main pressure value can be detected by the first main pressure sensor 22. It can be understood that, since the elastic force applied by the spring is proportional to the deformation amount, when the pressure rod 50 is at the starting position, if the user presses the first pressure detection button 84 to this state, the first main pressure value detected by the first main pressure sensor 22 is equal to the first main pressure value detected by the first main pressure sensor 22 when the first motor drives the first linear motion mechanism to rotate the first step from the starting position. In other words, a mapping relationship B1=F(P1) between the first main pressure value P1 and the first step number B1 can be established. Subsequently, it is only necessary to record in the target parameters the first main pressure value P1 detected by the first main pressure sensor 22 when the user just switches to the first stage. According to the mapping relationship B1=F(P1) between the first main pressure value P1 and the first step number B1, without the user pressing the first pressure detection button 84, the first linear motion mechanism is placed in the starting position. Then, only by controlling the first motor to rotate the corresponding first step number B1, the first pressure detection button 84 can be pressed by the pressure rod 50 to the state of being pressed by the user by hand, that is, the elastic force applied by the spring to the first main pressure sensor 22 in the two methods is consistent. Through this solution, when the hair dryer automatically adjusts the blowing mode of each stage according to the target parameters, if the user needs to press the first pressure detection button 84 for fine-tuning, the user can make the operating feel of the first pressure detection button 84 consistent with that in the manual mode when fine-tuning, avoiding the need to change the mapping relationship between the first pressure data and the rotation speed again.

[0084] Since the second pressure detection button 85 has the same structure as the first pressure detection button 84, a mapping relationship B2=G(P2) between the second main pressure value P2 and the second step number B2 can be established. Subsequently, it is only necessary to record in the target parameters the second main pressure value P2 detected by the second main pressure sensor when the user just switched to the first stage. According to the mapping relationship B2=G(P2) between the second main pressure value P2 and the second step number B2, without the user pressing the second pressure detection button 85, the second linear motion mechanism is placed in the starting position, and then only by controlling the second motor to rotate the corresponding second step number B2, the second pressure detection button 85 can be pressed by the pressure rod 50 to reach the state of being pressed by the user by hand, that is, the elastic force applied by the spring to the second main pressure sensor in the two methods is consistent. Through this solution, when the hair dryer automatically adjusts the blowing mode of each stage according to the target parameters, if the user needs to press the second pressure detection button 85 for fine-tuning, the user can make the operating feel of the second pressure detection button 85 consistent with that in the manual mode when fine-tuning, avoiding the need to change the mapping relationship between the second pressure data and the heating power again.

[0085] In one embodiment, the target parameters also include the first main pressure value and the second main pressure value corresponding to the hair dryer in each stage, as well as the first step number B1 required for the first motor to drive the first linear motion mechanism from the starting position to the first position corresponding to the first main pressure value P1 of this stage and the second step number B2 required for the second motor to drive the second linear motion mechanism from the starting position to the second position corresponding to the second main pressure value P2 of this stage; for each target first main pressure value, there is a corresponding first position, which is the position where the first main pressure value detected by the first main pressure sensor 22 is equal to the target first main pressure value when the first linear motion mechanism is connected to the outer side surface 101 of the first support panel 10; for each target second main pressure value, there is a corresponding second position, which is the position where the second main pressure value detected by the second main pressure sensor is equal to the second main pressure value when the second linear motion mechanism is connected to the outer side surface 101 of the second support panel.

[0086] In one embodiment, Figure 3 As shown, when it is detected that the hair dryer switches to a new stage, the hair dryer is controlled to work according to the rotation speed and heating power corresponding to the new stage based on the target parameter, specifically including:

[0087] Step S402, when it is detected that the hair dryer switches to a new stage, based on the target parameter, the first motor is controlled to rotate to the first step number corresponding to the new stage, and the second motor is controlled to rotate to the second step number corresponding to the new stage.

[0088] Specifically, in one example, the data corresponding to the first stage in the target parameters include: hair humidity is 80%, hair temperature is 30 degrees, rotation speed is 80,000 rpm, heating power is 300w, the first step number is 5,000 steps, and the second step number is 2,000 steps.

[0089] Step S404, adjusting the rotation speed of the hair dryer in real time in response to the change of the first pressure data to reach a rotation speed corresponding to the new stage.

[0090] Step S406, adjusting the heating power of the hair dryer in real time in response to the change of the second pressure data to achieve the heating power corresponding to the new stage.

[0091] One way to control the hair dryer to work according to the speed and heating power corresponding to the new stage based on the target parameters is that when the hair dryer adopts a fixed gear adjustment mode, for example, there are only 3 gears of speed and 3 gears of heating power, the speed is directly set to 80,000 rpm and the heating power is set to 300w. Another way is the way provided in this embodiment, the first linear motion mechanism and the second linear motion mechanism are returned to the starting position, and then the first motor is controlled to turn to the first step number and the second motor is controlled to turn to the second step number, and the pressure rod 50 presses the first support panel 10 and the second support panel to make the first spring 31 and the second spring deform so that the first main pressure sensor 22 and the second main pressure sensor detect the corresponding first pressure data and the second pressure data, and the hair dryer responds to the first pressure data and the second pressure data, and gradually adjusts the heating power to 300w and the speed to 80,000 rpm according to the mapping relationship between the first pressure data and the speed and the mapping relationship between the second pressure data and the heating power. That is, the implementation method in step S404 and step S406.

[0092] Through steps S402 to S406 provided in this embodiment, when the hair dryer automatically adjusts the blowing mode of each stage according to the target parameters, if the user needs to press the first pressure detection button 84 or the second pressure detection button 85 for fine-tuning, the user can make the operation feel of the first pressure detection button 84 or the second pressure detection button 85 consistent with that in manual mode, avoiding re-changing the mapping relationship between the first pressure data and the rotation speed or changing the mapping relationship between the second pressure data and the heating power.

[0093] In one embodiment, after the hair dryer switches to a new stage and before switching to the next stage, the method further comprises:

[0094] Step C1, when the first auxiliary pressure sensor 21 detects that the force with which the user presses the first pressure detection button 84 becomes larger, the first motor is maintained in the current step state to maintain the first linear motion mechanism in the current position.

[0095] For example, during the first stage, when the user feels that the current rotation speed needs to be slightly increased, the user will press the first pressure detection button 84 inwardly with his hand. Since the first pressure detection button 84 rotates inwardly, there is no need to change the position of the pressure rod 50, that is, the first linear motion mechanism can be maintained in the current position.

[0096] Step C2, when the first auxiliary pressure sensor 21 detects that the force with which the user presses the first pressure detection button 84 becomes smaller, in response to the first auxiliary pressure value detected by the first auxiliary pressure sensor 21, a pre-established mapping relationship between the pressure value and the number of steps is input, the target number of steps corresponding to the current first auxiliary pressure value is determined, and the difference between the target number of steps and the current number of steps of the first motor is calculated, and the first motor is controlled to rotate in the opposite direction according to the difference in the number of steps.

[0097] For example, during the first stage, when the user feels that the current hot air temperature needs to be slightly lowered, he or she will first press the first pressure detection button 84 inward with his or her hand, so that the value of the first auxiliary pressure sensor 21 is first greater than the current value of the first main pressure sensor 22, and then gradually reduce the force of pressing the first pressure detection button 84.

[0098] Specifically, since the first auxiliary pressure sensor 21 and the first main pressure sensor 22 are both arranged on the first support panel 10, when the user presses the first pressure detection button 84 to make it in a balanced state, the first support panel 10 is kept balanced by the finger pressing force applied to the outer surface 101 and the elastic force of the first spring 31 applied to the inner surface 102. Therefore, the values ​​of the first auxiliary pressure sensor 21 and the first main pressure sensor 22 are equal, so the pre-established mapping relationship between the pressure value and the number of steps is actually the mapping relationship B1=F(P1) between the first main pressure value P1 and the first step number B1.

[0099] Specifically, in one example, the data corresponding to the first stage in the target parameters include: hair humidity is 80%, hair temperature is 30 degrees, rotation speed is 80,000 rpm, heating power is 300W, the first step number is 5,000 steps, and the second step number is 2,000 steps. When the first stage is just entered, the first linear motion mechanism is located at the starting position, and the first motor rotates 5,000 steps in the positive direction, so that the first linear motion mechanism reaches the first position, so that the first pressure detection button 84 rotates around the first rotation axis, forcing the first spring 31 to deform and apply pressure to the first main pressure sensor 22, and the hair dryer adjusts the rotation speed gradually to 80,000 rpm in response to the first main pressure value. Therefore, when the first stage is just entered, the current step number of the first motor is 5,000 steps. If the target step number corresponding to the current first auxiliary pressure value is 4,500 steps, the difference is calculated to be 500 steps, and the first motor is controlled to rotate 500 steps in the reverse direction, so that the first linear motion mechanism no longer blocks the first pressure detection button 84 from moving outward, so the first pressure detection button 84 rotates outward around the rotation axis due to the elastic force of the first spring 31.

[0100] The first auxiliary pressure sensor 21 can quickly detect the change in the force with which the user presses the first pressure detection button 84. Through steps C1 and C2, when the pressure rod 50 abuts against the first support panel 10, the user can press the first pressure detection button 84 inward or outward by hand to fine-tune the rotation speed and heating power without being hindered by the pressure rod 50.

[0101] Step C3, when the second auxiliary pressure sensor detects that the force with which the user presses the second pressure detection button 85 becomes larger, the second motor is maintained in the current step state to maintain the second linear motion mechanism in the current position.

[0102] For example, during the first stage, when the user feels that the current hot air temperature needs to be slightly increased, the user will press the second pressure detection button 85 inwardly with his hand. Since the second pressure detection button 85 rotates inwardly, there is no need to change the position of the pressure rod 50, that is, the second linear motion mechanism can be maintained in the current position.

[0103] Step C4, when the second auxiliary pressure sensor detects that the force with which the user presses the second pressure detection button 85 becomes smaller, in response to the second auxiliary pressure value detected by the second auxiliary pressure sensor, the pre-established mapping relationship between the pressure value and the number of steps is input, the target number of steps corresponding to the current second auxiliary pressure value is determined, and the difference between the target number of steps and the current number of steps of the second motor is calculated, and the second motor is controlled to rotate in the opposite direction according to the difference in the number of steps.

[0104] For example, during the first stage, when the user feels that the current hot air temperature needs to be slightly lowered, he will first press the second pressure detection button 85 inward with his hand, so that the value of the second auxiliary pressure sensor is first greater than the current value of the second main pressure sensor, and then gradually reduce the force of pressing the second pressure detection button 85.

[0105] Specifically, since the second auxiliary pressure sensor and the second main pressure sensor are both arranged on the second support panel, when the user presses the second pressure detection button 85 to make it in a balanced state, the second support panel is kept balanced by the finger pressing force applied to the outer surface 101 and the elastic force of the second spring applied to the inner surface 102. Therefore, the values ​​of the second auxiliary pressure sensor and the second main pressure sensor are equal. Therefore, the pre-established mapping relationship between the pressure value and the number of steps is actually the mapping relationship B2=G(P2) between the second main pressure value P2 and the second number of steps B2.

[0106] Specifically, in one example, the data corresponding to the first stage in the target parameters include: hair humidity is 80%, hair temperature is 30 degrees, rotation speed is 80,000 rpm, heating power is 300w, the first step number is 5000 steps, and the second step number is 2000 steps. When the first stage is just entered, the second linear motion mechanism is located at the starting position, and the second motor rotates 2000 steps in the forward direction, so that the second linear motion mechanism reaches the second position, so that the second pressure detection button 85 rotates around the second rotating shaft, forcing the second spring to deform and apply pressure to the second main pressure sensor, and the hair dryer adjusts the heating power to gradually reach 300w in response to the second main pressure value. Therefore, when the first stage is just entered, the current step number of the second motor is 2000 steps. If the target step number corresponding to the current second auxiliary pressure value is 1800 steps, the difference is calculated to be 200 steps, and the second motor is controlled to rotate 200 steps in the reverse direction, so that the second linear motion mechanism no longer blocks the second pressure detection button 85 from moving outward, so the second pressure detection button 85 rotates outward around the rotating shaft due to the elastic force of the second spring.

[0107] The second auxiliary pressure sensor can quickly detect the change in the force with which the user presses the second pressure detection button 85. Through steps C3 and C4, when the pressure rod 50 abuts against the second support panel, the user can press the second pressure detection button 85 inward or outward by hand to fine-tune the rotation speed and heating power without being hindered by the pressure rod 50.

[0108] In one embodiment, the method further comprises:

[0109] Step D1, obtaining the changing trend of the rotation speed and heating power according to the time sequence of each stage during the process of the user blowing his hair.

[0110] Step D2, if the rotation speed and heating power both increase or decrease according to the time sequence of each stage, then when exiting the intelligent mode or entering the teaching mode, the rotation speed and heating power of the hair dryer are adjusted in response to the detected first main pressure value and the second main pressure value based on the first mapping strategy or the fourth mapping strategy.

[0111] Step D3, if the speed increases and the heating power decreases, or the speed decreases and the heating power increases, according to the time sequence of each stage, then when exiting the intelligent mode or entering the teaching mode, based on the second mapping strategy or the third mapping strategy, the speed and heating power of the hair dryer are adjusted in response to the detected first main pressure value and the second main pressure value.

[0112] Among them, the first mapping strategy: the first main pressure value is proportional to the rotational speed, and the second main pressure value is proportional to the heating power; the second mapping strategy: the first main pressure value is proportional to the rotational speed, and the second main pressure value is inversely proportional to the heating power; the third mapping strategy: the first main pressure value is inversely proportional to the rotational speed, and the second main pressure value is proportional to the heating power; the fourth mapping strategy: the first main pressure value is inversely proportional to the rotational speed, and the second main pressure value is inversely proportional to the heating power.

[0113] It is understandable that if the time sequence of each stage does not belong to the situation in the above steps D2 and D3, such as the heating power first increases and then decreases, then according to the default mapping strategy, the speed and heating power of the hair dryer are adjusted in response to the detected first main pressure value and second main pressure value. For example, the default mapping strategy is that the first main pressure value is proportional to the speed, and the second main pressure value is proportional to the heating power.

[0114] Specifically, the time sequence of each stage is the time sequence of the corresponding data of each stage collected in the teaching mode. For example, the target parameters include data of three stages in total. The data corresponding to the first stage include: hair humidity is 80%, hair temperature is 30 degrees, rotation speed is 80,000 rpm, and heating power is 300w; the data corresponding to the second stage include: hair humidity is 50%, hair temperature is 40 degrees, rotation speed is 90,000 rpm, and heating power is 200w; the data corresponding to the third stage include: hair humidity is 30%, hair temperature is 45 degrees, rotation speed is 100,000 rpm, and heating power is 150w. It can be seen that according to the time sequence of each stage, the rotation speed is 80,000 rpm, 90,000 rpm, and 100,000 rpm, so the change trend of the rotation speed is increasing; according to the time sequence of each stage, the heating power is 300w, 200w, and 150w, so the change trend of the heating power is decreasing. The user's usage habits when blowing their hair can be obtained based on the changing trends of the rotation speed and the heating power, that is, the rotation speed is adjusted gradually from the minimum to the maximum, and the heating power is adjusted gradually from the maximum to the minimum.

[0115] According to step D3, since the speed increases and the heating power decreases according to the time sequence of each stage, the speed and heating power of the hair dryer are adjusted in response to the detected first main pressure value and the second main pressure value based on the second mapping strategy. Among them, the second mapping strategy: the first main pressure value is proportional to the speed, and the second main pressure value is inversely proportional to the heating power. It can be seen that according to the second mapping strategy, the user's output direction of the first pressure detection button 84 and the second pressure detection button 85 is consistent throughout the process of blowing hair. For example, as the user's hair gets longer, when the user finds that the previous target parameters are no longer applicable, the user enters the teaching mode again. At this time, the hair dryer adjusts the speed and heating power of the hair dryer in response to the detected first main pressure value and the second main pressure value based on the second mapping strategy. That is, during the process of blowing hair, the user's strength in pressing the first pressure detection button 84 and the second pressure detection button 85 gradually increases over time, and the output direction is consistent, which is convenient for user operation. In another example, as the user's hair grows longer, the user finds that the previous target parameters are no longer applicable, and the user directly exits the smart mode through the app while connected to Bluetooth, that is, the hair dryer no longer automatically adjusts the rotation speed and heating power according to the humidity and temperature of the user's hair. At this time, the user presses the first pressure detection button 84 and the second pressure detection button 85 to adjust the blowing mode during the hair blowing process. When the user adjusts the blowing mode according to his or her own usage habits (that is, the rotation speed is gradually adjusted from the minimum to the maximum, and the heating power is gradually adjusted from the maximum to the minimum), the second mapping strategy is adopted to ensure that the strength with which the user presses the first pressure detection button 84 and the second pressure detection button 85 gradually increases over time, and the force direction is consistent, which is convenient for user operation.

[0116] In some embodiments, a control device is also provided, which includes a main control module and an infrared temperature sensor 73, a first humidity sensor 74, a second humidity sensor 75, a first main pressure sensor 22, a second main pressure sensor, a first auxiliary pressure sensor 21, a second auxiliary pressure sensor, a ranging sensor, a motor drive module, a wireless communication module, and a bidirectional thyristor circuit, which are electrically connected to the main control module respectively; the main control module includes a memory, a processor, and a computer program stored in the memory, and the processor is used to execute the computer program to implement the steps of the above-mentioned blowing mode adjustment method.

[0117] In some embodiments, a hair dryer is also provided, and the hair dryer includes the above-mentioned control device.

[0118] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A method for adjusting a blowing mode, characterized in that: The method comprises: When it is detected that the wireless communication module has been successfully paired and connected with the terminal device, it switches to the smart mode; When switching to the intelligent mode, the target parameters are received from the wireless communication module; The target parameters are used as personalized hair drying mode control parameters corresponding to the current user; wherein the target parameters include the rotation speed and heating power corresponding to the hair dryer at each stage, and the stage of the hair dryer is determined by the hair humidity and temperature; the target parameters are data collected based on the user's historical usage behavior; Detect the user's hair humidity and temperature in real time, and determine the current stage of the hair dryer based on the current hair humidity and temperature; When it is detected that the hair dryer switches to a new stage, the hair dryer is controlled to operate according to the rotation speed and heating power corresponding to the new stage based on the target parameters; The hair dryer includes a first humidity sensor, a second humidity sensor and a distance sensor, the distance sensor is used to measure a distance value D between the air outlet and the hair, the first humidity sensor is arranged at the periphery of the air outlet and is used to measure a first humidity value H1 at the periphery of the air outlet, the second humidity sensor is used to measure a second humidity value H2 of the environment, and the method further includes: Use the following steps to check the current hair humidity: Obtaining a distance value D from the distance measuring sensor, a first humidity value H1 from the first humidity sensor, and a second humidity value H2 from the second humidity sensor, and using the three together as monitoring data at the current moment; Input the current monitoring data into formula 1 to calculate the current hair humidity H 头发 ; Formula 1: Wherein, D0 is the preset reference distance corresponding to the current stage, H0 is the preset reference ambient humidity, and k is the preset coefficient.

2. A method for adjusting a blowing mode according to claim 1, characterized in that: The target parameters are obtained based on the user's historical usage behavior, specifically including: Entering the teaching mode in the intelligent mode, when detecting that the user changes the blowing mode from the previous state to the new state, the hair humidity and temperature of the new state are used as the key hair humidity and temperature; the blowing mode is jointly determined by the rotation speed and heating power of the hair dryer, and the state of the blowing mode is changed when any parameter of the rotation speed or heating power of the hair dryer is changed; When it is detected that the blowing mode is maintained in a new state for more than a preset time, the rotation speed and heating power of the hair dryer corresponding to the new state are used as the key rotation speed and heating power; The four parameters of key hair humidity and temperature, key rotation speed and heating power are associated as target parameters corresponding to the same stage and transmitted to the mobile phone through the wireless communication module for storage.

3. A method for adjusting a blowing mode according to claim 1, characterized in that: The hair dryer also includes an infrared temperature sensor, and the method further includes: The current hair temperature is determined by the infrared temperature sensor.

4. A method for adjusting a blowing mode according to claim 1, characterized in that: The hair dryer further comprises a first pressure detection button and a second pressure detection button, wherein the first pressure detection button is used to output first pressure data in response to a user's pressing; The second pressure detection button is used to output second pressure data in response to a user pressing the button; The method further comprises: adjusting the rotation speed of the hair dryer in real time in response to changes in the first pressure data; The heating power of the hair dryer is adjusted in real time in response to the change of the second pressure data.

5. A method for adjusting a blowing mode according to claim 4, characterized in that: The first pressure detection button and the second pressure detection button are respectively connected to the outer shell of the hair dryer handle for rotation. The hair dryer also includes a first linear motion mechanism driven by a first motor and a second linear motion mechanism driven by a second motor. The first linear motion mechanism can make linear motion in a direction perpendicular to the outer shell surface of the hair dryer handle, and is connected to or separated from the first pressure detection button when making linear motion. When the first linear motion mechanism is connected to the first pressure detection button, it can drive the first pressure detection button to rotate inside the outer shell of the hair dryer handle and limit the first pressure detection button to rotate outside the outer shell of the hair dryer handle. The first linear motion mechanism can make linear motion in a direction perpendicular to the outer shell surface of the hair dryer handle, and is connected to or separated from the first pressure detection button when making linear motion. When the first linear motion mechanism is connected to the first pressure detection button, it can drive the first pressure detection button to rotate inside the outer shell of the hair dryer handle and limit the first pressure detection button to rotate outside the outer shell of the hair dryer handle. The target parameters also include the first main pressure value and the second main pressure value corresponding to the hair dryer in each stage, as well as the first step number required for the first motor to drive the first linear motion mechanism from the starting position to the first position corresponding to the first main pressure value of the stage, and the second step number required for the second motor to drive the second linear motion mechanism from the starting position to the second position corresponding to the second main pressure value of the stage; for each target first main pressure value, there is a corresponding first position, which is the position where the first main pressure value detected by the first main pressure sensor is equal to the target first main pressure value when the first linear motion mechanism is connected to the first pressure detection button; for each target second main pressure value, there is a corresponding second position, which is the position where the second main pressure value detected by the second main pressure sensor is equal to the second main pressure value when the second linear motion mechanism is connected to the second pressure detection button; When it is detected that the hair dryer switches to a new stage, the hair dryer is controlled to operate according to the rotation speed and heating power corresponding to the new stage based on the target parameter, specifically including: When it is detected that the hair dryer has switched to a new stage, based on the target parameter, the first motor is controlled to rotate to the first step number corresponding to the new stage, and the second motor is controlled to rotate to the second step number corresponding to the new stage; In real time, in response to the change of the first pressure data, the rotation speed of the hair dryer is adjusted to reach the rotation speed corresponding to the new stage; The heating power of the hair dryer is adjusted in real time in response to the change of the second pressure data to achieve the heating power corresponding to the new stage.

6. A method for adjusting a blowing mode according to claim 5, characterized in that: After the hair dryer switches to a new stage and before switching to the next stage, the method further comprises: When the first auxiliary pressure sensor detects that the force of the user pressing the first pressure detection button becomes larger, the first motor is maintained in the current step state to maintain the first linear motion mechanism in the current position; When the first auxiliary pressure sensor detects that the force of the user pressing the first pressure detection button becomes smaller, in response to the first auxiliary pressure value detected by the first auxiliary pressure sensor, a pre-established mapping relationship between the pressure value and the number of steps is input, a target number of steps corresponding to the current first auxiliary pressure value is determined, and a difference between the target number of steps and the current number of steps of the first motor is calculated, and the first motor is controlled to rotate in the opposite direction according to the difference in the number of steps; When the second auxiliary pressure sensor detects that the force of the user pressing the second pressure detection button becomes larger, the second motor is maintained in the current step state to maintain the second linear motion mechanism in the current position; When the second auxiliary pressure sensor detects that the force with which the user presses the second pressure detection button becomes smaller, in response to the second auxiliary pressure value detected by the second auxiliary pressure sensor, a pre-established mapping relationship between the pressure value and the number of steps is input, the target number of steps corresponding to the current second auxiliary pressure value is determined, and the difference between the target number of steps and the current number of steps of the second motor is calculated, and the second motor is controlled to rotate in the opposite direction according to the difference in the number of steps.

7. A method for adjusting a blowing mode according to claim 6, characterized in that: The method further comprises: Obtain the changing trends of the rotation speed and heating power in the time sequence of each stage during the process of the user blowing his hair; If the rotation speed and the heating power are both increasing or decreasing according to the time sequence of each stage, then when exiting the intelligent mode or entering the teaching mode, the rotation speed and the heating power of the hair dryer are adjusted in response to the detected first main pressure value and the second main pressure value based on the first mapping strategy or the fourth mapping strategy; If the speed increases and the heating power decreases, or the speed decreases and the heating power increases, according to the time sequence of each stage, when exiting the intelligent mode or entering the teaching mode, the speed and heating power of the hair dryer are adjusted in response to the detected first main pressure value and the second main pressure value based on the second mapping strategy or the third mapping strategy; Among them, the first mapping strategy: the first main pressure value is proportional to the rotational speed, and the second main pressure value is proportional to the heating power; the second mapping strategy: the first main pressure value is proportional to the rotational speed, and the second main pressure value is inversely proportional to the heating power; the third mapping strategy: the first main pressure value is inversely proportional to the rotational speed, and the second main pressure value is proportional to the heating power; the fourth mapping strategy: the first main pressure value is inversely proportional to the rotational speed, and the second main pressure value is inversely proportional to the heating power.

8. A control device, characterized in that: The control device includes a main control module and an infrared temperature sensor, a first humidity sensor, a second humidity sensor, a first main pressure sensor, a second main pressure sensor, a first auxiliary pressure sensor, a second auxiliary pressure sensor, a ranging sensor, a motor drive module, a wireless communication module, and a bidirectional thyristor circuit, which are electrically connected to the main control module respectively; the main control module includes a memory, a processor, and a computer program stored in the memory, and the processor is used to execute the computer program to implement the steps of the blowing mode adjustment method described in any one of claims 1 to 7.

9. A hair dryer, characterized in that: The hair dryer comprises the control device of claim 8.

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