Hair dryer state detection loop and method and air dryer base

Abstract

The invention discloses a blower state detection loop and method and a blower base. The blower state detection loop comprises an electric detection module and an electric connection module with a first electric connection part, the first electric connection part is arranged on a blower base and used for being electrically connected with a blower, and the electric detection module is used for sending a first electric signal passing through the electric connection module; the electric detection module is set to receive a second electric signal passing through the electric connection module when the first electric connection part is electrically connected to the hair drier, and when the second electric signal accords with the target electric signal, the hair drier is judged to accord with a preset target working state; wherein the preset target working state is used for representing that the blower is in a state capable of executing the target work. The problem that the state of the blower cannot be fed back to a user in time in the prior art is effectively solved, the effect of automatically detecting the state of the blower in time is achieved, and the use experience of the user is effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of smart home technology, and in particular to a hair dryer state detection circuit, method and hair dryer base. Background Art

[0002] It is a daily need for users to have a hand dryer in the bathroom cabinet, and a hair dryer is a must-have electrical appliance in every household. Using a hair dryer as a hand dryer can save money. You only need to install a hair dryer base on the mirror cabinet to use the hair dryer as a hand dryer without affecting its original purpose.

[0003] When using an existing hair dryer, the user may not place the hair dryer properly, or the hair dryer may not be in good contact with the base or may not work properly. In this state, when the user wants to dry his hands, the hair dryer or the base cannot give any feedback, which brings a bad user experience. Summary of the invention

[0004] The present invention provides a hair dryer status detection circuit, method and hair dryer base, which provide a circuit for detecting the status of the hair dryer when the hair dryer is connected to the hair dryer base, so that the base can judge the status of the hair dryer in time.

[0005] According to one aspect of the present invention, there is provided a hair dryer state detection circuit, which is applied to a hair dryer base, the hair dryer state detection circuit comprising an electrical detection module and an electrical connection module having a first electrical connection portion, the first electrical connection portion being arranged on the hair dryer base for being electrically connected to the hair dryer, the electrical detection module being used to send a first electrical signal via the electrical connection module;

[0006] The electrical detection module is configured to receive a second electrical signal via the electrical connection module when the first electrical connection part is electrically connected to the hair dryer, and to judge that the hair dryer meets a predetermined target working state when the second electrical signal meets the target electrical signal; wherein the predetermined target working state is used to characterize that the hair dryer is in a state capable of performing the target work.

[0007] According to another aspect of the present invention, a method for detecting a state of a hair dryer is provided, comprising:

[0008] Receiving a first electrical signal input by a hair dryer state detection circuit as described in any of the above embodiments;

[0009] When the received second electrical signal is a target electrical signal, it is determined that the hair dryer meets the predetermined target working state.

[0010] According to another aspect of the present invention, there is provided a hair dryer base configured with a hair dryer state detection circuit as described in any of the above embodiments, comprising: an electrical connection portion and a card slot;

[0011] Wherein, the electrical connection portion is used to electrically connect to the hair dryer placed in the card slot.

[0012] The technical solution of the embodiment of the present invention is that when the electric detection module senses that the hair dryer is placed in the hair dryer base, the electric detection module sends a first electric signal to the electric connection module; the electric detection module is used to receive a second electric signal fed back via the electric connection module when the first electric connection part is electrically connected to the hair dryer, and when the second electric signal matches the target electric signal, it is judged that the hair dryer meets the predetermined target working state, which effectively solves the technical problem in the prior art that the status of the hair dryer cannot be fed back to the user in time, and achieves the effect of timely detection of the status of the hair dryer placed in the hair dryer base, effectively improving the user experience.

[0013] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 is a structural block diagram of a hair dryer state detection circuit provided by an embodiment of the present invention;

[0016] Figure 2 is a structural block diagram of another hair dryer state detection circuit provided by an embodiment of the present invention;

[0017] Figure 3 is a structural block diagram of another hair dryer state detection circuit provided by an embodiment of the present invention;

[0018] Figure 4 is a structural block diagram of another hair dryer state detection circuit provided by an embodiment of the present invention;

[0019] Figure 5 is a structural block diagram of another hair dryer state detection circuit provided by an embodiment of the present invention;

[0020] Figure 6 is a structural block diagram of another hair dryer state detection circuit provided by an embodiment of the present invention;

[0021] Figure 7 is a circuit diagram of an infrared distance sensing module provided by an embodiment of the present invention;

[0022] Figure 8 is a flow chart of a hair dryer state detection method provided by an embodiment of the present invention;

[0023] Fig. 9 is a structural schematic diagram of a hair dryer base provided by an embodiment of the present invention;

[0024] Fig.10 It is a schematic diagram of the positions of a hair dryer and a hand dryer provided by an embodiment of the present invention;

[0025] Fig.11 It is a structural block diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme 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 only 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 should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] In one embodiment, Figure 1 : is a structural block diagram of a hair dryer state detection circuit provided by an embodiment of the present invention. This embodiment is applicable to the case of automatically detecting the switch status of the hair dryer gear switch. The hair dryer state detection circuit can be implemented in the form of hardware and / or software. The hair dryer state detection circuit can be configured in the hair dryer base. Figure 1 As shown, the hair dryer state detection circuit includes: an electrical detection module 10 and an electrical connection module 20 having a first electrical connection portion, the first electrical connection portion is arranged on the hair dryer base for electrically connecting to the hair dryer, and the electrical detection module 10 is used to send a first electrical signal via the electrical connection module;

[0029] The electrical detection module 10 is configured to receive a second electrical signal via the electrical connection module 20 when the first electrical connection part is electrically connected to the hair dryer, and when the second electrical signal matches the target electrical signal, it is determined that the hair dryer meets a predetermined target working state; wherein the predetermined target working state is used to characterize that the hair dryer is in a state capable of performing the target work.

[0030] In an embodiment, the first electrical connection part refers to the socket on the base of the hair dryer. The first electrical connection part can be a two-hole socket, a three-hole socket, or a socket with both two and three holes; electrically connecting the hair dryer to the first electrical connection part refers to inserting the plug of the hair dryer into the first electrical connection part to power the hair dryer.

[0031] The first electrical signal refers to an electrical signal sent by the electrical detection module 10; the second electrical signal refers to a feedback electrical signal generated after the first electrical signal sent by the electrical detection module 10 flows through the inside of the hair dryer. The electrical detection module 10 sends the first electrical signal to the electrical connection module 20 so that the electrical connection module 20 is electrically connected to the hair dryer so that the first electrical signal flows through the inside of the hair dryer to determine the working state of the hair dryer, and generates a corresponding second electrical signal, and feeds the second electrical signal back to the electrical detection module 10 so that the electrical detection module 10 determines the working state of the hair dryer based on whether the second electrical signal is a target electrical signal. If the second electrical signal meets the target electrical signal, it is determined that the hair dryer meets the predetermined target working state; if the second electrical signal does not meet the target electrical signal, it is determined that the hair dryer does not meet the predetermined target working state.

[0032] The technical solution of the embodiment of the present invention is that when the electric detection module senses that the hair dryer is placed in the hair dryer base, the electric detection module sends a first electric signal to the electric connection module; the electric detection module is used to receive a second electric signal fed back via the electric connection module when the first electric connection part is electrically connected to the hair dryer, and when the second electric signal matches the target electric signal, it is judged that the hair dryer meets the predetermined target working state, which effectively solves the technical problem in the prior art that the working state of the hair dryer cannot be fed back to the user in time, and achieves the effect of timely detection of the state of the hair dryer placed in the hair dryer base, effectively improving the user experience.

[0033] In one embodiment, an electrical signal is transmitted between the first electrical connection part and the internal circuit of the hair dryer; the first electrical connection part is connected to the internal circuit of the hair dryer to form a loop. In the case where the hair dryer uses a brushed motor to detect the state of the hair dryer, the first electrical signal can be input into the internal circuit of the hair dryer through the first electrical connection part to form a loop to determine the state of the hair dryer, and a second electrical signal as a feedback electrical signal is generated based on the state of the hair dryer, and whether the hair dryer meets the predetermined target working state is determined based on the second electrical signal. The specific implementation method of this embodiment can be found in the following. Figure 4 The implementation process shown.

[0034] In one embodiment, the hair dryer includes a hand drying working module, and the electric signal generates a hand drying signal when the hand drying working module is in the hand drying working state; and generates a non-hand drying signal when the electric signal is in the non-hand drying working state of the non-hand drying working module. When the electric signal can make the hand drying working module switch to the hand drying working state, the hand drying signal is generated, and a display light of a corresponding color (e.g., green) is used for display, so as to intuitively prompt the user that the hair dryer can perform the hand drying operation; when the electric signal can make the non-hand drying working mode switch to the non-hand drying working state, a non-hand drying signal (e.g., hair dryer) can be generated, and a display light of a corresponding color (e.g., red) can be used for display, and / or a buzzer can be controlled to alarm, so as to intuitively prompt the user that the hair dryer cannot perform the hand drying operation at this time.

[0035] In one embodiment, the first electrical connection part is electrically connected to the hair dryer and provides power for the hair dryer; the electrical detection module is used to detect the current or voltage change of the electrical connection module, and judge the power-on state between the first electrical connection part and the hair dryer based on the current or voltage change. In the case where the hair dryer uses a brushed motor or a brushless motor to detect the state of the hair dryer, the first electrical signal can be input into the internal circuit of the hair dryer through the first electrical connection part, and power can be provided to the hair dryer; the electrical detection module is used to detect the current or voltage change of the electrical connection module, and judge the power-on state between the first electrical connection part and the hair dryer based on the current or voltage change. If the current or voltage change shows that there is a voltage difference, it can be judged that the power-on state between the first electrical connection part and the hair dryer is energized, and then the state of the hair dryer can be judged, and a second electrical signal as a feedback electrical signal is generated based on the state of the hair dryer, and whether the hair dryer meets the predetermined target working state is judged based on the second electrical signal. The specific implementation method of this embodiment can be found in the following. Figure 5 The implementation process shown.

[0036] In one embodiment, the hair dryer state detection circuit further includes a second electrical connection portion, and the second electrical connection portion is disposed on the hair dryer base for being electrically connected to the hair dryer.

[0037] In one embodiment, the electrical detection module further includes: a hair dryer detection module, which is used to determine whether the hair dryer is placed on the hair dryer base. In one example, the hair dryer detection module can be a hair dryer infrared pair tube, which can determine whether the hair dryer is placed on the hair dryer base through infrared rays.

[0038] In one embodiment, Figure 2 1 is a structural block diagram of another hair dryer state detection circuit provided by an embodiment of the present invention. This embodiment further illustrates the structure of the electrical detection module based on the above embodiment. Figure 2As shown, the electrical detection module 10 in this embodiment further includes: a main control module 110, a switch control module 120, and a switch detection module 130;

[0039] The main control module is configured to: when it is determined based on the second electrical signal that the hair dryer meets the hand drying working state, provide a corresponding hand drying service based on the sensed hand drying information; when it is determined based on the second electrical signal that the hair dryer does not meet the hand drying working state, not provide the hand drying service based on the sensed non-hand drying information, and provide a corresponding non-hand drying service based on the non-hand drying information.

[0040] The switch control module 120 and the switch detection module 130 are electrically connected to the electrical connection module 20; the input end of the main control module 110 is connected to the output end of the switch detection module 130, and the output end of the main control module 110 is connected to the input end of the switch control module 120;

[0041] The series circuit formed by the switch control module 120, the switch detection module 130 and the electrical connection module 20 outputs a first electrical signal and inputs it to the main control module 110;

[0042] The main control module 110 determines that the predetermined target working state of the hair dryer is the turned-on state based on the received second electrical signal being the target electrical signal;

[0043] The second electrical signal received by the main control module 110 is not a target electrical signal, and determines that the predetermined target working state of the hair dryer is the off state.

[0044] In one example, whether the predetermined target working state of the hair dryer is the off state or the on state can be determined based on whether the gear switch of the hair dryer is on or off. The hair dryer can be implemented by a brushed motor or a brushless motor. The motor in the hair dryer is equivalent to a coil. After the gear switch of the hair dryer is turned on, the two ends of the hair dryer plug are connected in series with the motor of the gear switch. This characteristic is used to detect whether the loop circuit formed by the switch control module 120, the switch detection module 130 and the electrical connection module 20 in series is in a conductive state, and determine whether the gear switch of the hair dryer is turned on, so as to avoid the hand drying function of the hair dryer being unable to be used due to the gear switch of the hair dryer not being turned on. When the loop detection method is used to determine whether the loop circuit is conductive and whether the gear switch of the hair dryer is turned on, the target electrical signal can be a low-level signal, that is, the voltage value is 0; correspondingly, the non-target electrical signal can be a high-level signal, that is, the voltage value is non-0.

[0045] In one example, when a hair dryer is working, the operating current is detected at the power supply end of the hair dryer base to determine whether the gear switch of the hair dryer is turned on, so as to avoid the hand drying function of the hair dryer not being able to be used due to the gear switch of the hair dryer not being turned on. In the case of using the power supply end to detect the operating current to determine whether the gear switch of the hair dryer is turned on, the target electrical signal may be an actual voltage difference, and correspondingly, the non-target electrical signal may be a low-level signal, that is, the actual voltage difference is 0.

[0046] In one example, the power supply (ie, input power) of the hair dryer status detection circuit is 220V.

[0047] The technical solution of this embodiment is that, when the hair dryer is sensed to be placed in the hair dryer base, the series circuit composed of the switch control module, the switch detection module and the electrical connection module outputs a first electrical signal and inputs it to the main control module; in response to the second electrical signal received by the main control module being the target electrical signal, the predetermined target working state of the hair dryer is determined to be the on state; in response to the second electrical signal received by the main control module not being the target electrical signal, the predetermined target working state of the hair dryer is determined to be the off state, which effectively solves the problem that the state of the hair dryer cannot be automatically detected in the prior art, realizes the effect of timely detection of the state of the hair dryer placed in the hair dryer base, and effectively improves the user experience.

[0048] In one embodiment, Figure 3 1 is a structural block diagram of another hair dryer state detection circuit provided by an embodiment of the present invention. This embodiment further illustrates the structure of the hair dryer state detection circuit based on the above embodiment. Figure 3 As shown, the hair dryer state detection circuit in this embodiment further includes: a switch alarm module 30; wherein the switch alarm module 30 is connected to the main control module 110;

[0049] The feedback electrical signal received by the main control module 110 is not the target electrical signal, and the main control module 110 sends a switch alarm signal to the switch alarm module 30 so that the switch alarm module 30 performs a sound or light alarm.

[0050] In one example, the switch alarm module 30 can be a buzzer or an alarm indicator light. In the case where the feedback electrical signal received by the main control module 110 is not the target electrical signal, it can be assumed that the gear switch of the hair dryer is in the off state. At this time, the main control module 110 can send a switch alarm signal to the buzzer to make the buzzer sound an alarm; or the main control module 110 can send a switch alarm signal to the alarm indicator light to make the alarm indicator light an alarm, so that the user of the hair dryer can promptly find that the gear switch of the hair dryer is not turned on, so as to remind the user to manually turn on the gear switch of the hair dryer in time, so as to avoid the hand drying function of the hair dryer being unable to be used due to the gear switch of the hair dryer not being turned on when the hand drying function of the hair dryer is used.

[0051] Figure 4 1 is a structural block diagram of another hair dryer state detection circuit provided by an embodiment of the present invention. This embodiment further illustrates the structure of the hair dryer state detection circuit based on the above embodiment. Figure 2 Based on the above, the implementation structure of the hair dryer status detection circuit is described for the case where the hair dryer uses a brushed motor. Figure 4 As shown, the switch control module 120 in this embodiment includes a single-pole double-throw relay K1; the switch detection module 130 includes: a first photocoupler U1; wherein the first photocoupler U1 includes: a first light emitter and a first light receiver;

[0052] Among them, the normally closed end of the single-pole double-throw relay K1 is connected to the negative electrode of the first light emitter, the normally open end of the single-pole double-throw relay K1 is connected to the live wire pin AC-L of the input power supply, and the common end of the single-pole double-throw relay K1 is connected to the second end of the electrical connection module J3; the first end of the electrical connection module J3 is connected to the neutral wire pin AC-N of the input power supply; the positive electrode of the first light receiver is connected to the input end of the main control module 110; the negative electrode of the first light receiver is grounded;

[0053] In response to the positive electrode of the first light emitter receiving the first driving level signal, a loop is formed by the first light emitter, the normally closed end and the common end of the single-pole double-throw relay K1, and the electrical connection module J3, so that the first light emitter emits light, and the first light receiver is turned on, and the feedback electrical signal received by the input end of the main control module 110 is a low-level signal, and it is determined that the gear switch of the hair dryer is in the on state;

[0054] If the feedback electrical signal received by the input end of the main control module 110 is a high level signal, it is determined that the gear switch of the hair dryer is in the off state.

[0055] In one embodiment, the main control module 110 includes: a main control chip 101 and a main control circuit 102; the main control circuit 102 includes: a second photocoupler U4 and a first transistor Q2; wherein the second photocoupler U4 includes: a second light emitter and a second light receiver;

[0056] Among them, the input end of the main control chip 101 is connected to the output end of the switch detection module 130, and the output end of the main control chip 101 is connected to the positive electrode of the second light emitter; the positive electrode of the second light receiver is externally connected to the first coil terminal 3 of the single-pole double-throw relay K1 with a high level; the negative electrode of the second light receiver is connected to the base of the first transistor Q2, the collector of the first transistor Q2 is connected to the second coil terminal of the single-pole double-throw relay K1, and the emitter of the first transistor Q2 and the negative electrode of the second light emitter are grounded;

[0057] In response to the positive electrode of the second light emitter receiving the second driving level signal, the second light emitter is turned on, the corresponding second light receiver is turned on, and the base of the first transistor Q2 receives a high level signal, so that the first transistor Q2 is turned on, the collector becomes a low level, and the corresponding coil of the single-pole double-throw relay K1 is energized to disconnect the normally closed end and the common end of the single-pole double-throw relay K1, and close the normally open end and the common end of the single-pole double-throw relay K1, so that the hair dryer works normally.

[0058] In one example, the first light emitter and the second light emitter may both be light emitting diodes; the first light receiver and the second light receiver may both be photosensitive diodes or phototransistors; in an embodiment of the present invention, the circuits of the first photocoupler and the second photocoupler are described assuming that the first photoreceiver and the second photoreceiver are both photosensitive diodes.

[0059] In one embodiment, the first driving level signal is used to drive the operation of the light emitting diode as the first light emitter, so that the first light emitter in the first photoelectric coupler U1 generates a light signal, thereby affecting the first light receiver of the first photoelectric coupler U1 to generate a corresponding electrical signal output; the second driving level signal is used to drive the operation of the light emitting diode as the second light emitter, so that the second light emitter in the second photoelectric coupler U4 generates a light signal, thereby affecting the second light receiver of the second photoelectric coupler U4 to generate a corresponding electrical signal output. In one example, the voltage value of the first driving level signal can be 5V; the voltage value of the second driving level signal can be 3.3V.

[0060] When the hair dryer is placed in the hair dryer base, the hand drying light on the hair dryer base is always on in white. At this time, the normally closed terminal 1 and the common terminal 5 of the single-pole double-throw relay K1 are connected. The loop detection circuit is provided with a 5V power supply by a set of isolated power supplies, and forms a loop through the first photocoupler U1, the normally closed end of the single-pole double-throw relay K1 and the electrical connection module. If the gear switch of the hair dryer is turned on, the first photocoupler U1 will be turned on; if the output feedback electrical signal IO1 is detected to be high level, the gear switch of the hair dryer is not turned on, and the universal hair dryer base will control the buzzer alarm and the red light flashing warning; if the output feedback electrical signal IO1 is detected to be low level, the gear switch of the hair dryer is turned on and the hand drying mode can be operated, then the hand below is close to the infrared pair of tubes sensing board, which will trigger the hand drying action. The hand is placed on the infrared distance sensing sensor 1 cm from the bottom of the hand dryer, that is, the second drive level signal IO2 is a high level signal. At this time, the second light emitter in the second photocoupler U4 emits light, and the corresponding second light receiver is turned on. After the second light receiver is turned on, the base of the first transistor Q2 receives a high-level signal, so that the collector and emitter of the first transistor Q2 are turned on, and the corresponding collector becomes a low level. Correspondingly, the coils 3 and 4 of the single-pole double-throw relay K1 are energized to disconnect the normally closed end 1 and the common end 5 of the single-pole double-throw relay K1, and close the normally open end 2 and the common end 5 of the single-pole double-throw relay K1, that is, the normally open end 2 and the common end 5 of the single-pole double-throw relay K1 are turned on, and the hair dryer works to blow air (the hair dryer infrared pair tube senses that the hair dryer is taken away and put into the hair dryer again, and then it will detect the IO1 signal again to determine whether the hair dryer gear switch is on). The hand drying light flashes and stops when the hand is removed. If there is always an obstruction, it will continue to work and stop working after more than three minutes. The infrared distance sensing sensor must be triggered after the hand is removed to continue working.

[0061] If the hair dryer is not placed in the hair dryer base, the hair dryer light will be always white. If the button is pressed shortly, the normally open terminal 2 and the common terminal 5 of the single-pole double-throw relay K1 will be connected to start the hair dryer, and the hair dryer indicator will flash. The hair dryer gear must be in the normally open state, and the electrical connection module is plugged into a two-hole socket. The main control module controls the hair dryer by controlling the on and off of the single-pole double-throw relay K1. The hair dryer is installed on the bottom plate of the bathroom cabinet, and the bottom plate is grooved to expose the sensor module. The decorative cover is connected to the hair dryer through a buckle to cover the grooved and unsealed wood structure.

[0062] In one embodiment, Figure 5 1 is a structural block diagram of another hair dryer state detection circuit provided by an embodiment of the present invention. This embodiment further illustrates the structure of the hair dryer state detection circuit based on the above embodiment. Figure 1Based on the above, the implementation structure of the hair dryer status detection circuit is described for the case where the hair dryer uses a brushed motor or a brushless motor. Figure 5 As shown, the switch control module 120 in this embodiment is a single-pole single-throw relay K3; the switch detection module 130 is an electric quantity detection module;

[0063] Among them, the first end of the electrical connection module J9 is connected to the first input end of the power detection module; the second end of the electrical connection module J9 is connected to the first contact end of the single-pole single-throw relay K3, and the second contact end of the single-pole single-throw relay K3 is connected to the live wire pin AC-L of the input power supply; the second input end of the power detection module is connected to the neutral wire pin AC-N of the input power supply; the output end of the power detection module is connected to the input end of the main control module 110;

[0064] In response to the closing time between the first contact end and the second contact end of the single-pole single-throw relay K3 reaching a first time, detecting the actual voltage difference between the first input end and the second input end of the electric quantity detection module, and sending the actual voltage value as a feedback electrical signal to the main control module 110;

[0065] If the actual voltage difference is greater than 0, it is determined that the gear switch of the hair dryer is in the on state;

[0066] If the actual voltage value is equal to 0, it is determined that the gear switch of the hair dryer is in the off state.

[0067] In one embodiment, the power detection module includes: a power detection circuit 301 and a power detection chip U10;

[0068] Among them, the first end of the power detection circuit 301 is connected to the first end of the electrical connection module J9, the second end of the power detection circuit 301 is grounded, the third end of the power detection circuit 301 is connected to the first input end of the power detection chip U10, and the fourth end of the power detection circuit 301 is connected to the second input end of the power detection chip U10; the power detection chip U10 is connected to the input end of the main control module 110 through serial port communication.

[0069] In one embodiment, the main control module 110 includes: a main control chip 101 and a main control circuit 102; the main control circuit 102 includes: a third photocoupler U11 and a second transistor Q3; wherein the third photocoupler U11 includes: a third light emitter and a third light receiver;

[0070] Among them, the input end of the main control chip 101 is connected to the output end of the power detection module, and the output end of the main control chip 101 is connected to the positive electrode of the third light emitter; the positive electrode of the third light receiver is externally connected to the first coil terminal 1 of the single-pole single-throw relay K3 with a high level; the negative electrode of the third light receiver is connected to the base of the second transistor Q3, the collector of the second transistor Q3 is connected to the second coil terminal 2 of the single-pole single-throw relay K3, and the emitter of the second transistor Q3 and the negative electrode of the third light emitter are grounded;

[0071] In response to the positive electrode of the third light emitter receiving the second driving level signal, the third light emitter is turned on, the corresponding third light receiver is turned on, and the base of the second transistor Q3 receives a high level signal, so that the second transistor Q3 is turned on, the collector becomes a low level, and the coil of the corresponding single-pole single-throw relay K3 is energized, so that the first contact end and the second contact end of the single-pole single-throw relay K3 are closed, so that the hair dryer works normally.

[0072] In one example, the third light emitter may be a light emitting diode; the third light receiver may be a photosensitive diode or a phototransistor; in the embodiment of the present invention, the circuit of the third photocoupler is described by taking the third light receiver as a photosensitive diode.

[0073] The second driving level signal is used to drive the light emitting diode as the third light emitter to operate, thereby causing the second light emitter in the third photoelectric coupler U11 to generate a light signal, thereby influencing the second light receiver of the second photoelectric coupler U11 to generate a corresponding electrical signal output.

[0074] Press and hold for 1S to turn on the machine, the double lights flash 3 times, the hair dryer infrared tube senses whether the hair dryer is put in, and the power detection circuit detects whether the hair dryer gear switch is on.

[0075] When the hair dryer is placed in the hair dryer base through the hair dryer infrared pair tube, the hand drying light on the hair dryer base is always on in white. At this time, the single-pole single-throw relay K3 is turned on to power the hair dryer for 1S. The power detection chip U10 in the power detection module of the hair dryer detects the current of the hair dryer loop, collects the current data between IP1 and IN1 to obtain the voltage difference between the two as the actual voltage difference, and sends the actual voltage difference to the main control module 110 through the serial port for data processing. Whether the hair dryer is in operation is analyzed from the collected data. If the hair dryer is not in operation, the main control module 110 can be used to control the buzzer to sound an alarm and control the alarm indicator to flash a red light to warn. If the hair dryer is detected to be in operation, it means that the hair dryer gear switch has been turned on to run the hand drying mode, and the hand below is close to the infrared distance sensing sensor, which will trigger the hand drying action. The hand is placed 1 cm from the bottom of the hand dryer infrared distance sensing sensor, that is, the second driving level signal IO2 is a high level signal. At this time, the second light emitter in the third photocoupler U11 emits light, and the corresponding third light receiver is turned on. After the third light receiver is turned on, the base of the second transistor Q3 receives a high-level signal, so that the collector and emitter of the second transistor Q3 are turned on, and the corresponding collector becomes a low level. Correspondingly, the coils 1 and 2 of the single-pole single-throw relay K3 are energized to close the first contact terminal 4 and the second contact terminal 3 of the single-pole single-throw relay K3, that is, the first contact terminal 4 and the second contact terminal 3 of the single-pole single-throw relay K3 are turned on, and the hair dryer can work to blow air (the hair dryer infrared pair tube will detect the signals output by pins 10 and 9 in U10 again after the hair dryer is taken away and put into the hair dryer again to determine whether the hair dryer gear switch is on). The hand drying light flashes with breathing, and stops when the hand is removed. If there is always an obstruction, it will continue to work, and stop working after more than three minutes. The infrared distance sensing sensor must be triggered after the hand is removed to continue working.

[0076] If the hair dryer is not placed in the hair dryer base, the hair dryer light will be always white. If the button is pressed shortly, relay K3 will close and the hair dryer will start, and the hair dryer indicator will flash. The hair dryer gear must be in the normally open state, and the electrical connection module is plugged into a two-hole socket. The main control module controls the operation of the hair dryer by controlling the on and off of relay K3. The hair dryer is installed on the bottom plate of the bathroom cabinet, and the bottom plate is grooved to expose the sensor module. The decorative cover is connected to the hair dryer through a buckle to cover the grooved and unsealed wood structure.

[0077] In one embodiment, Figure 6 1 is a structural block diagram of another hair dryer state detection circuit provided by an embodiment of the present invention. This embodiment further illustrates the structure of the hair dryer state detection circuit based on the above embodiment. Figure 2On the basis shown, the hair dryer state detection circuit further includes: an infrared distance sensing module 60; wherein the infrared distance sensing module 60 is connected to the main control module 110;

[0078] In response to the main control module 110 receiving the low level signal output by the infrared distance sensing module 60 , the main control module 110 inputs a second driving level signal to the main control circuit.

[0079] In one example, the infrared distance sensing module 60 includes: an infrared light emitting diode and a photosensitive diode. The infrared distance sensing sensor 60 is triggered 1 cm from the bottom of the hand dryer, that is, the infrared light emitting diode in the infrared distance sensing sensor 60 emits an infrared light signal, but the photosensitive diode cannot receive the infrared light signal emitted by the infrared light emitting diode, indicating that the hand drying action may be triggered. Here, the infrared distance sensing module 60 outputs a low-level signal, and sends the low-level signal to the main control module 110, and the main control module 110 inputs a high-level second driving level signal to the main control circuit.

[0080] In one embodiment, Figure 7 FIG. 1 is a circuit diagram of an infrared distance sensing module provided by an embodiment of the present invention. This embodiment is based on the above embodiment and describes the circuit principle of the infrared distance sensing module. Figure 7 As shown, the circuit principle of the infrared distance sensing module is as follows: after the infrared distance sensing module senses an object such as a palm, pins 3 and 4 in the fourth photoelectric coupler U8 are turned on, and the pin of U9 is pulled low, and pin 3 of U9 becomes a low level, that is, pin 1 of U9 outputs a low level signal, that is, IO3 is a low level signal.

[0081] In one embodiment, Figure 8 1 is a flow chart of a method for detecting the status of a hair dryer provided by an embodiment of the present invention. This embodiment is a case where the gear switch of the hair dryer is automatically detected. It can be executed by the hair dryer status detection circuit described in any of the above embodiments. Figure 8 As shown, the hair dryer state detection method in this embodiment includes the following steps:

[0082] S710, receiving a first electrical signal input by a hair dryer status detection circuit.

[0083] S720: When the received second electrical signal is a target electrical signal, determine that the hair dryer meets the predetermined target working state.

[0084] In an embodiment, when it is sensed that a hair dryer is placed in a hair dryer base, a series circuit composed of a switch control module, a switch detection module and an electrical connection module outputs a feedback electrical signal and inputs it into a main control module; in response to the feedback electrical signal received by the main control module being a target electrical signal, it is determined that the gear switch of the hair dryer is in an on state; in response to the feedback electrical signal received by the main control module being not a target electrical signal, it is determined that the gear switch of the hair dryer is in a closed state, which effectively solves the technical problem in the prior art that the state of the hair dryer cannot be automatically and timely detected, achieves the effect of timely detection of the state of the hair dryer placed in the hair dryer base, and effectively improves the user experience.

[0085] In one embodiment, Fig. 9 is a structural schematic diagram of a hair dryer base provided by an embodiment of the present invention, such as Fig. 9 As shown, it includes: an electrical connection portion 910 and a card slot 920;

[0086] The electrical connection portion 910 is used to electrically connect to the hair dryer 900 placed in the card slot 920 .

[0087] like Fig. 9 As shown, the hair dryer base also includes: a hand dryer upper shell 930, a pressure plate 950, a hair dryer 960, a hand dryer lower shell 970, a transparent outer cover 980, a button 990, a mounting bracket and a light guide column 9100, a button PCB board 9110, a main control board 9130, a temperature sensor 9140, an infrared tube sensor board 9150, a shading piece 9160 and a hand dryer decorative cover 9170.

[0088] In one embodiment, the hair dryer base further includes: a hair dryer infrared pair tube; wherein the hair dryer infrared pair tube includes an infrared receiving end 940 and an infrared transmitting end 9120, which are respectively located at the two ends of the card slot; based on the hair dryer infrared pair tube, the hair dryer is detected whether the hair dryer is placed in the card slot. The infrared pair tube sensing board 9150 is used to detect whether the user puts his hand under the hair dryer base; the temperature sensor 9140 is used to detect the temperature of the wind provided by the hair dryer as a hand dryer; the hair dryer 960 is used to provide wind to the user; the button 990 is used to start the hair dryer as a hand dryer function; the main control board 9130 is similar to the function of the above-mentioned main control module 110, which will not be repeated here.

[0089] Fig.10 Schematic diagram of the positions of a hair dryer and a hand dryer provided by an embodiment of the present invention. Fig.10 As shown, the hand dryer 1001 is installed on the bathroom cabinet bottom plate 1000, and the bottom plate is slotted (i.e., a card slot) to expose the infrared distance sensor module and the air cylinder of the hair dryer 1003. The decorative cover 1002 is connected to the hand dryer 1001 through a buckle to cover the slotted unsealed wood structure.

[0090] In one embodiment, Fig.11 is a structural block diagram of an electronic device provided by an embodiment of the present invention, such as Fig.11 As shown, a schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0091] like Fig.11 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0092] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0093] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as a hair dryer state detection method.

[0094] In some embodiments, the hair dryer state detection method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the hair dryer state detection method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the hair dryer state detection method in any other appropriate manner (e.g., by means of firmware).

[0095] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0096] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0097] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0098] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0099] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0100] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0101] An embodiment of the present invention further provides a computer program product, including a computer program, which, when executed by a processor, can implement a hair dryer status detection method as provided in any embodiment of the present application.

[0102] In the process of implementation, the computer program product can be written in one or more programming languages ​​or a combination thereof to perform the computer program code of the present application, and the programming language includes an object-oriented programming language, such as Java, Smalltalk, C++, and also includes a conventional procedural programming language, such as "C" language or similar programming language. The program code can be executed entirely on the user's computer, partially on the user's computer, as an independent software package, partially on the user's computer and partially on the remote computer, or completely on the remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (for example, using an Internet service provider to connect through the Internet).

[0103] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0104] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hair dryer status detection circuit, applied to a hair dryer base, characterized in that: The hair dryer state detection circuit includes an electrical detection module and an electrical connection module having a first electrical connection portion, wherein the first electrical connection portion is arranged on the hair dryer base for electrically connecting to the hair dryer, and the electrical detection module is used to send a first electrical signal via the electrical connection module; The electrical detection module is configured to receive a second electrical signal via the electrical connection module when the first electrical connection part is electrically connected to the hair dryer, and to judge that the hair dryer meets a predetermined target working state when the second electrical signal meets the target electrical signal; wherein the predetermined target working state is used to characterize that the hair dryer is in a state capable of performing the target work.

2. The hair dryer status detection circuit according to claim 1, characterized in that: An electrical signal is transmitted between the first electrical connection portion and the internal circuit of the hair dryer; the first electrical connection portion is connected to the internal circuit of the hair dryer to form a loop.

3. The hair dryer status detection circuit according to claim 1, characterized in that: The hair dryer comprises a hand drying working module, and the electrical signal generates a hand drying signal when the hand drying working module is in the hand drying working state; and generates a non-hand drying signal when the non-hand drying working module is in the non-hand drying working state.

4. The hair dryer status detection circuit according to claim 1 or 2, characterized in that: The first electrical connection part is electrically connected to the hair dryer and provides power for the hair dryer; the electrical detection module is used to detect the current or voltage changes of the electrical connection module, and determine the power-on status between the first electrical connection part and the hair dryer based on the current or voltage changes.

5. The hair dryer status detection circuit according to claim 4, characterized in that: The hair dryer state detection circuit also includes a second electrical connection portion, which is arranged on the hair dryer base for being electrically connected to the hair dryer.

6. The hair dryer status detection circuit according to claim 1, characterized in that: The electrical detection module further includes: a hair dryer detection module, which is used to determine whether the hair dryer is placed on the hair dryer base.

7. The hair dryer status detection circuit according to claim 1, characterized in that: The electrical detection module includes a main control module, and the main control module is configured to: When it is determined based on the second electrical signal that the hair dryer meets the hand-drying working state, providing a corresponding hand-drying service based on the sensed hand-drying information; When it is determined based on the second electrical signal that the hair dryer does not meet the hand drying working state, the hand drying service is not provided based on the sensed non-hand drying information, and a corresponding non-hand drying service is provided based on the non-hand drying information.

8. The hair dryer status detection circuit according to claim 7, characterized in that: The electrical detection module also includes: a switch control module and a switch detection module; The switch control module and the switch detection module are electrically connected to the electrical connection module; the input end of the main control module is connected to the output end of the switch detection module, and the output end of the main control module is connected to the input end of the switch control module; A series circuit formed by the switch control module, the switch detection module and the electrical connection module outputs a first electrical signal and inputs it into the main control module; The main control module determines that the predetermined target working state of the hair dryer is an on state based on the received second electrical signal being a target electrical signal; The main control module determines that the predetermined target working state of the hair dryer is the off state based on the fact that the received second electrical signal is not the target electrical signal.

9. The hair dryer status detection circuit according to claim 8, characterized in that: The hair dryer status detection circuit further includes: a switch alarm module; wherein the switch alarm module is connected to the main control module; The second electrical signal received by the main control module is not a target electrical signal, and the main control module sends a switch alarm signal to the switch alarm module, so that the switch alarm module performs a sound or light alarm.

10. The hair dryer status detection circuit according to claim 8, characterized in that: The switch control module includes a single-pole double-throw relay; the switch detection module includes: a first photoelectric coupler; wherein the first photoelectric coupler includes: a first light emitter and a first light receiver; Wherein, the normally closed end of the single-pole double-throw relay is connected to the negative pole of the first light emitter, the normally open end of the single-pole double-throw relay is connected to the live wire pin of the input power supply, and the common end of the single-pole double-throw relay is connected to the second end of the electrical connection module; the first end of the electrical connection module is connected to the neutral wire pin of the input power supply; the positive pole of the first light receiver is connected to the input end of the main control module; and the negative pole of the first light receiver is grounded; The positive electrode of the first light emitter receives a first driving level signal, and a loop is formed by the first light emitter, the normally closed end and the common end of the single-pole double-throw relay, and the electrical connection module, so that the first light emitter emits light, the first light receiver is turned on, and the second electrical signal received by the input end of the main control module is a low-level signal, and it is determined that the gear switch of the hair dryer is in the on state; If the second electrical signal received by the input end of the main control module is a high level signal, it is determined that the gear switch of the hair dryer is in the off state.

11. The hair dryer state detection circuit according to claim 10, characterized in that: The main control module includes: a main control chip and a main control circuit; the main control circuit includes: a second photoelectric coupler and a first transistor; wherein the second photoelectric coupler includes: a second light emitter and a second light receiver; Among them, the input end of the main control chip is connected to the output end of the switch detection module, and the output end of the main control chip is connected to the positive electrode of the second light emitter; the positive electrode of the second light receiver is externally connected to the first coil terminal of the single-pole double-throw relay with a high level; the negative electrode of the second light receiver is connected to the base of the first transistor, the collector of the first transistor is connected to the second coil terminal of the single-pole double-throw relay, and the emitter of the first transistor and the negative electrode of the second light emitter are grounded; The positive electrode of the second light emitter receives a second driving level signal, the second light emitter is turned on, the corresponding second light receiver is turned on, and the base of the first transistor receives a high level signal, so that the first transistor is turned on, the collector becomes a low level, and the corresponding coil of the single-pole double-throw relay is energized to disconnect the normally closed end and the common end of the single-pole double-throw relay, and close the normally open end and the common end of the single-pole double-throw relay, so that the hair dryer works normally.

12. The hair dryer status detection circuit according to claim 8, characterized in that: The switch control module is a single-pole single-throw relay; the switch detection module is an electric quantity detection module; Wherein, the first end of the electrical connection module is connected to the first input end of the power detection module; the second end of the electrical connection module is connected to the first contact end of the single-pole single-throw relay, and the second contact end of the single-pole single-throw relay is connected to the live wire pin of the input power supply; the second input end of the power detection module is connected to the neutral wire pin of the input power supply; the output end of the power detection module is connected to the input end of the main control module; If the closing time between the first contact end and the second contact end of the single-pole single-throw relay reaches a first time, detecting an actual voltage difference between the first input end and the second input end of the power detection module, and sending the actual voltage value as a second electrical signal to the main control module; If the actual voltage difference is greater than 0, it is determined that the gear switch of the hair dryer is in the on state; If the actual voltage value is equal to 0, it is determined that the gear switch of the hair dryer is in the off state.

13. The hair dryer status detection circuit according to claim 12, characterized in that: The power detection module includes: a power detection circuit and a power detection chip; Among them, the first end of the power detection circuit is connected to the first end of the electrical connection module, the second end of the power detection circuit is grounded, the third end of the power detection circuit is connected to the first input end of the power detection chip, and the fourth end of the power detection circuit is connected to the second input end of the power detection chip; the power detection chip is connected to the input end of the main control module through serial port communication.

14. The hair dryer status detection circuit according to claim 12, characterized in that: The main control module includes: a main control chip and a main control circuit; the main control circuit includes: a third photoelectric coupler and a second triode; wherein the third photoelectric coupler includes: a third light emitter and a third light receiver; Among them, the input end of the main control chip is connected to the output end of the power detection module, and the output end of the main control chip is connected to the positive electrode of the third light emitter; the positive electrode of the third light receiver and the first coil terminal of the single-pole single-throw relay are externally connected to a high level; the negative electrode of the third light receiver is connected to the base of the second transistor, the collector of the second transistor is connected to the second coil terminal of the single-pole single-throw relay, and the emitter of the second transistor and the negative electrode of the third light emitter are grounded; The positive electrode of the third light emitter receives a second driving level signal, the third light emitter is turned on, the corresponding third light receiver is turned on, and the base of the second transistor receives a high level signal, so that the second transistor is turned on, the collector becomes a low level, and the corresponding coil of the single-pole single-throw relay is energized to close the first contact end and the second contact end of the single-pole single-throw relay, so that the hair dryer works normally.

15. The hair dryer state detection circuit according to claim 11 or 14, characterized in that: The electrical detection module further comprises: an infrared distance sensing module; wherein the infrared distance sensing module is connected to the main control; The main control module receives the low level signal output by the infrared distance sensing module, and the main control module inputs a second driving level signal to the main control circuit.

16. A method for detecting the state of a hair dryer, characterized in that: include: Receiving a first electrical signal inputted by a hair dryer state detection circuit as claimed in any one of claims 1 to 15; When the received second electrical signal is a target electrical signal, it is determined that the hair dryer meets the predetermined target working state.

17. A hair dryer base equipped with a hair dryer status detection circuit according to any one of claims 1 to 15, characterized in that: include: An electrical connection portion and a card slot; Wherein, the electrical connection portion is used to electrically connect to the hair dryer placed in the card slot.

18. The hair dryer base according to claim 17, characterized in that: Also includes: Hair dryer infrared pair tubes; wherein the hair dryer infrared pair tubes are located at both ends of the card slot; Based on the infrared pairing of the hair dryer tube, it is detected whether the hair dryer is placed in the card slot.

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