Intelligent mosquito net control circuit and intelligent mosquito net

Abstract

This utility model discloses an intelligent mosquito net control circuit and an intelligent mosquito net, relating to the field of mosquito net technology. The intelligent mosquito net includes a first motor and a second motor. The control circuit includes first and second motor drive circuits, first and second laser TOF circuits, and a main control circuit. The first and second motor drive circuits drive the first and second motors respectively to adjust the opening and closing of the mosquito net's opening and closing mechanism and the opening and closing amplitude. The first and second laser TOF circuits emit modulated laser beams towards preset detection areas and receive light signals reflected from the user's hand, outputting corresponding first and second distance signals respectively. The main control circuit detects the user's hand movements based on the distance changes between the user's hand and the laser TOF circuits indicated by the two distance signals, thereby controlling the operation of the first and second motor drive circuits. Thus, this utility model allows the opening and closing of the mosquito net to be controlled by gestures, improving convenience.

Description

Technical Field

[0001] This utility model relates to the field of mosquito net technology, and in particular to an intelligent mosquito net control circuit and an intelligent mosquito net. Background Technology

[0002] Mosquito nets, as a traditional mosquito prevention product, are widely used in various living environments such as homes, hospitals, and dormitories, and play an irreplaceable protective role, especially in summer or in areas with a large number of mosquitoes.

[0003] Most mosquito nets on the market are still manually operated, requiring users to manually open or close the curtains, which is cumbersome and inconvenient. Although some electric mosquito nets have emerged, they mostly rely on physical buttons for control, requiring users to get up to find and operate them, which is especially inconvenient at night or while lying in bed, failing to meet users' needs for a convenient and comfortable lifestyle. Utility Model Content

[0004] The main purpose of this invention is to provide an intelligent mosquito net control circuit, which aims to solve the problems of cumbersome operation of existing manual mosquito nets and the inconvenience of electric mosquito nets requiring physical button control.

[0005] To achieve the above objectives, this utility model proposes an intelligent mosquito net control circuit. The intelligent mosquito net includes a first motor and a second motor. The first motor is used to drive the unfolding / retraction of a first opening / closing portion of the intelligent mosquito net, and the second motor is used to drive the unfolding / retraction of a second opening / closing portion of the intelligent mosquito net. The intelligent mosquito net control circuit includes:

[0006] A first motor drive circuit is connected to the first motor, and the first motor drive circuit is used to drive the first motor to work.

[0007] A second motor drive circuit is connected to the second motor and is used to drive the second motor to work.

[0008] The first laser TOF circuit is used to emit a first laser into a preset detection area and receive a corresponding first reflected signal to measure the distance between the user's hand and the first laser TOF circuit, and output a first distance signal based on the first reflected signal.

[0009] The second laser TOF circuit is used to emit a second laser into a preset detection area and receive a second reflection signal corresponding to the second laser, so as to measure the distance between the user's hand and the second laser TOF circuit, and output a second distance signal according to the second reflection signal;

[0010] The main control circuit is connected to the first motor drive circuit, the second motor drive circuit, the first laser TOF circuit, and the second laser TOF circuit respectively.

[0011] The main control circuit is used to detect a first distance change between the user's hand and the first laser TOF circuit based on the first distance signal, detect a second distance change between the user's hand and the second laser TOF circuit based on the second distance signal, and control the operation of the first motor drive circuit and the second motor drive circuit based on the first distance change and the second distance change.

[0012] In one embodiment, the smart mosquito net control circuit further includes:

[0013] The battery is connected to the first laser TOF circuit, the second laser TOF circuit, the first motor drive circuit, the second motor drive circuit, and the main control circuit, respectively.

[0014] A battery charging circuit is connected to both an external power input terminal and the battery. The battery charging circuit is used to convert the input voltage of the external power input terminal into the charging voltage output of the battery.

[0015] In one embodiment, the smart mosquito net control circuit further includes:

[0016] A battery protection circuit is connected to the battery; the battery protection circuit is used to detect the charging and discharging state of the battery, and to cut off / restore the charging and discharging of the battery according to the charging and discharging state of the battery.

[0017] In one embodiment, the smart mosquito net control circuit further includes:

[0018] A voltage regulator circuit is connected to the battery, the first laser TOF circuit, the second laser TOF circuit, and the main control circuit, respectively. The voltage regulator circuit is used to regulate the power supplied by the battery and output it.

[0019] In one embodiment, the first laser TOF circuit includes a first laser TOF sensor, a first resistor, a second resistor, and a first capacitor;

[0020] Specifically, the SCL pin of the first laser TOF sensor and one end of the first resistor are connected to the first signal terminal of the main control circuit; the SDA pin of the first laser TOF sensor and one end of the second resistor are connected to the second signal terminal of the main control circuit; the VCC pin of the first laser TOF sensor, one end of the first capacitor, the other end of the first resistor, and the other end of the second resistor are connected to the power supply terminal of the first laser TOF circuit; the GND pin of the first laser TOF sensor is grounded to the other end of the first capacitor; and the GPIO pin of the first laser TOF sensor is connected to the third signal terminal of the main control circuit.

[0021] In one embodiment, the second laser TOF circuit includes a second laser TOF sensor, a third resistor, a fourth resistor, and a second capacitor;

[0022] Specifically, the SCL pin of the second laser TOF sensor and one end of the third resistor are connected to the fourth signal terminal of the main control circuit; the SDA pin of the second laser TOF sensor and one end of the fourth resistor are connected to the fifth signal terminal of the main control circuit; the VCC pin of the second laser TOF sensor, one end of the second capacitor, the other end of the third resistor, and the other end of the fourth resistor are connected to the power supply terminal of the second laser TOF circuit; the GND pin of the second laser TOF sensor and the other end of the second capacitor are grounded; and the GPIO pin of the second laser TOF sensor is connected to the third signal terminal of the main control circuit.

[0023] In one embodiment, the smart mosquito net control circuit further includes a TYPE-C interface, and the battery charging circuit includes a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a third capacitor, a fourth capacitor, a red light-emitting diode, a green light-emitting diode, and a charging chip.

[0024] Specifically, the VBUS pin of the TYPE-C interface, the VCC pin of the charging chip, the CE pin of the charging chip, one end of the third capacitor, and one end of the seventh resistor are connected; the CC1 pin of the TYPE-C interface is connected to one end of the fifth resistor; the CC2 pin of the TYPE-C interface is connected to one end of the sixth resistor; the GND pin of the TYPE-C interface, the other end of the fifth resistor, the other end of the sixth resistor, the other end of the third capacitor, one end of the eighth resistor, the TEMP pin of the charging chip, the GND pin of the charging chip, and one end of the fourth capacitor are grounded; the other end of the eighth resistor is connected to the PROG pin of the charging chip; the other end of the seventh resistor, the positive terminal of the red LED, and the positive terminal of the green LED are connected; the negative terminal of the red LED is connected to the CHRG pin of the charging chip; the negative terminal of the green LED is connected to the STDBY pin of the charging chip; and the BAT pin of the charging chip and the other end of the fourth capacitor are connected to the battery.

[0025] In one embodiment, the battery is a lithium battery.

[0026] This utility model also proposes an intelligent mosquito net, including a first motor, a second motor and the intelligent mosquito net control circuit described above;

[0027] The first motor is connected to the first motor drive circuit, and the first motor is used to drive the first opening and closing part of the smart mosquito net to unfold / fold up.

[0028] The second motor is connected to the second motor drive circuit, and the second motor is used to drive the second opening / closing part of the smart mosquito net to unfold / fold.

[0029] In one embodiment, the first motor is a stepper motor and / or the second motor is a stepper motor.

[0030] This utility model employs an intelligent mosquito net control circuit. The intelligent mosquito net includes a first motor and a second motor. The intelligent mosquito net control circuit includes a first motor drive circuit, a second motor drive circuit, a first laser TOF circuit, a second laser TOF circuit, and a main control circuit. The first and second motors drive the first and second opening / closing sections of the intelligent mosquito net, respectively, enabling independent or synchronous opening / closing of the curtains on the left and right sides. The first and second motor drive circuits receive control signals from the main control circuit and provide corresponding drive currents to the first and second motors based on these signals, controlling their start, stop, and direction, thereby precisely adjusting the opening and closing amplitude of the mosquito net. The first and second laser TOF circuits can be installed on both sides of the mosquito net frame, emitting modulated laser beams towards a preset detection area and receiving light signals reflected from the user's hand. By calculating the time difference between laser emission and reception, the real-time distance between the hand and the internal sensors is accurately measured, outputting corresponding first and second distance signals. The main control circuit receives distance signals from two laser TOF circuits. Based on the first distance signal, it detects a first distance change between the user's hand and the first laser TOF circuit; based on the second distance signal, it detects a second distance change between the user's hand and the second laser TOF circuit. Based on the first and second distance changes, it determines the user's control command, generates a corresponding motor control command, and sends it to the first and second motor drive circuits to control the operation of the first and second motors. Thus, this invention allows the user to control the opening and closing of the mosquito net while already in bed, without needing to sit up, turn over, or get out of bed. Simply raising or waving a hand is sufficient to control the opening and closing of the mosquito net. Compared to existing manual mosquito nets and electric mosquito nets controlled by physical buttons, this avoids significant physical movements and improves ease of operation. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 A schematic diagram of an embodiment of the intelligent mosquito net control circuit provided by this utility model;

[0033] Figure 2 A schematic diagram of another embodiment of the intelligent mosquito net control circuit provided by this utility model;

[0034] Figure 3Electronic circuit diagram of the first laser TOF circuit of an embodiment of the intelligent mosquito net control circuit provided by this utility model;

[0035] Figure 4 Electronic circuit diagram of the second laser TOF circuit in an embodiment of the intelligent mosquito net control circuit provided by this utility model;

[0036] Figure 5 Electronic circuit diagram of the battery charging circuit and battery protection circuit of an embodiment of the intelligent mosquito net control circuit provided by this utility model.

[0037] Figure 6 The electronic circuit diagram of the voltage regulator circuit of an embodiment of the intelligent mosquito net control circuit provided by this utility model.

[0038] Explanation of icon numbers:

[0039] label name label name 01 First motor drive circuit 02 Second motor drive circuit 03 First laser TOF circuit 04 Second laser TOF circuit 05 Main control circuit R1~R9 First resistor ~ Ninth resistor C1~C7 First capacitor to seventh capacitor LEDR Red LED LEDG Green LED U1 First laser TOF sensor U2 Second laser TOF sensor U3 charging chip U4 Battery protection chip U5 voltage regulator chip

[0040] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0043] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0044] Most mosquito nets on the market are still manually operated, requiring users to manually open or close the curtains, which is cumbersome and inconvenient. Although some electric mosquito nets have emerged, they mostly rely on physical buttons for control, requiring users to get up to find and operate them, which is especially inconvenient at night or while lying in bed, failing to meet users' needs for a convenient and comfortable lifestyle.

[0045] This utility model proposes an intelligent mosquito net control circuit.

[0046] Please see Figure 1 In one embodiment of the present invention, the smart mosquito net includes a first motor and a second motor. The first motor is used to drive the first opening and closing part of the smart mosquito net to unfold / retract, and the second motor is used to drive the second opening and closing part of the smart mosquito net to unfold / retract.

[0047] The smart mosquito net control circuit includes:

[0048] The first motor drive circuit 01 is connected to the first motor and is used to drive the first motor.

[0049] The second motor drive circuit 02 is connected to the second motor and is used to drive the second motor.

[0050] The first laser TOF (Time of Flight) circuit is used to emit a first laser into a preset detection area and receive the corresponding first reflection signal to measure the distance between the user's hand and the first laser TOF circuit 03, and output a first distance signal based on the first reflection signal.

[0051] The second laser TOF (Time of Flight) circuit is used to emit a second laser into a preset detection area and receive a second reflection signal corresponding to the second laser to measure the distance between the user's hand and the second laser TOF circuit 04, and output a second distance signal based on the second reflection signal.

[0052] The main control circuit 05 is connected to the first motor drive circuit 01, the second motor drive circuit 02, the first laser TOF circuit 03, and the second laser TOF circuit 04 respectively.

[0053] The main control circuit 05 is used to detect the first distance change between the user's hand and the first laser TOF circuit 03 based on the first distance signal, detect the second distance change between the user's hand and the second laser TOF circuit 04 based on the second distance signal, and control the operation of the first motor drive circuit 01 and the second motor drive circuit 02 based on the first distance change and the second distance change.

[0054] In this embodiment, the first motor and / or the second motor can be stepper motors, and the rotation angle of the stepper motors can be precisely controlled so that the first opening / closing part / second opening / closing part is precisely positioned at a specified distance.

[0055] It should be noted that the first motor drive circuit 01 and / or may include a drive chip and a filter circuit. The drive chip is connected to the filter circuit, which can be located at the power input terminal of the drive chip to filter out power supply noise and improve anti-interference capability. The drive chip can be an L298N chip or an A4988 chip. Both the first laser TOF circuit 03 and the second laser TOF circuit 04 may include a laser signal transmitter, a reflected signal receiver, and an amplification and filtering circuit. The laser signal transmitter is used to emit laser signals, the reflected signal receiver is used to receive reflected signals from the user's hand, and the amplification and filtering circuit is used to amplify and filter the reflected signals before outputting them to the main control circuit 05. It is understood that the laser signal transmitter, reflected signal receiver, and amplification and filtering circuit can be integrated into a single laser TOF sensor, reducing its size. It can be installed in any convenient area near the head of the bed in the smart mosquito net, and the laser TOF sensor can accurately detect the distance from the user's hand to the sensor, with a maximum detection distance of up to four meters, suitable for beds of different sizes. The main control circuit 05 may include an MCU chip of model ASP32F003-20Q, which has low power consumption and fast processing speed.

[0056] It should be noted that the intelligent mosquito net control circuit may also include a trigger circuit, which is connected to the main control circuit 05. Users can input commands through the trigger circuit to set the proportional relationship between changes in hand distance and the opening / closing distance of the intelligent mosquito net's opening and closing sections. For example, if the distance between the first laser TOF circuit 03 and the second laser TOF circuit 04 is 1 meter, and the width of the first and second opening / closing sections of the intelligent mosquito net is 2 meters, the user can set a 0.1-meter change in hand distance to control the first / second opening / closing section to expand / retract by 0.2 meters; or a 0.1-meter change in hand distance to control the first / second opening / closing section to expand / retract by 0.4 meters, etc. This allows for adaptive adjustment of the width of the intelligent mosquito net's opening and closing sections based on changes in hand distance. It is understandable that when the user's hand distance exceeds the opening / closing distance of the intelligent mosquito net's opening and closing sections, the opening and closing sections can be stopped to improve circuit safety.

[0057] In this embodiment, please refer to Figure 2The first laser TOF circuit 03 can be positioned on the left side near the head of the bed, and the second laser TOF circuit 04 on the right side near the head of the bed. The height of both the first and second laser TOF circuits 03 and 04 should be higher than the user's pillow. This allows the user to control the opening and closing of the smart mosquito net while lying down by raising and waving their hands, and to stop control by lowering their hands. In this embodiment, the main control circuit 05 has both one-handed and two-handed control modes.

[0058] In single-handed control mode, if the main control circuit 05 detects a change in distance from near to far based on the first distance signal and a change in distance from far to near based on the second distance signal, that is, detects that the user's gesture is a single hand from left to right, then the first and second opening / closing parts are fully extended; if the main control circuit 05 detects a change in distance from far to near based on the first distance signal and a change in distance from near to far based on the second distance signal, that is, detects that the user's gesture is a single hand from right to left, then the first and second opening / closing parts are fully closed.

[0059] In the two-hand control mode, the first laser TOF circuit 03 can detect the distance change between the user's left hand and the first laser TOF circuit 03, and the second laser TOF circuit 04 can detect the distance change between the user's right hand and the second laser TOF circuit 04. If the main control circuit 05 detects, based on the first distance signal, that the first distance change of the left hand changes from near to far, and the distance change is equal to the first distance difference, and the main control circuit 05 detects, based on the second distance signal, that the second distance change of the right hand also changes from near to far, and the distance change is equal to the second distance difference, then the main control circuit 05 controls the first opening and closing part to expand to a distance proportional to the first distance difference, and controls the second opening and closing part to expand to a distance proportional to the second distance difference. If the main control circuit 05 detects, based on the first distance signal, that the first distance change of the left hand changes from far to near, and the distance change is equal to the first distance difference, and the main control circuit 05 detects, based on the second distance signal, that the second distance change of the right hand also changes from far to near, and the distance change is equal to the second distance difference, then the main control circuit 05 controls the first opening and closing part to close to a distance proportional to the first distance difference, and controls the second opening and closing part to close to a distance proportional to the second distance difference. In this way, users can precisely control the opening degree of the smart mosquito net by using hand gestures.

[0060] It is understood that the first laser TOF circuit 03 and the second laser TOF circuit 04 can also be installed in any area that is convenient for user gesture control. When the user puts his / her hand into the detection area, he / she can control the opening and closing part by gesture. When the user removes his / her hand from the detection area, the control ends. This embodiment does not limit the specific installation position of the first laser TOF circuit 03 and the second laser TOF circuit 04.

[0061] In this invention, a first motor and a second motor drive the first and second opening / closing sections of the smart mosquito net, respectively, enabling independent or synchronous opening / closing of the curtains on the left and right sides. The first and second motors can be stepper motors, capable of forward and reverse rotation. The first motor drive circuit 01 and the second motor drive circuit 02 receive control signals (such as PWM pulse width modulation signals) from the main control circuit 05 and provide corresponding drive currents to the first and second motors based on these signals, controlling their start, stop, and direction, thereby precisely adjusting the opening and closing amplitude of the mosquito net. The first laser TOF circuit 03 and the second laser TOF circuit 04 can be installed on both sides of the mosquito net frame, respectively emitting modulated laser beams into a preset detection area and receiving light signals reflected from the user's hand. By calculating the time difference between laser emission and reception, the real-time distance between the hand and the internal sensor is accurately measured, and corresponding first and second distance signals are output. The main control circuit 05 receives distance signals from the two laser TOF circuits, identifies the user's control intention based on changes in the distance of the user's hand, and generates corresponding motor control commands in different modes. These commands are then sent to the first motor drive circuit 01 and the second motor drive circuit 02 to control the operation of the first and second motors. Thus, this invention allows users to control the opening and closing of the mosquito net even when already in bed, without needing to sit up, turn over, or get out of bed. Control is achieved simply by raising or waving a hand. Compared to existing manual mosquito nets and electric mosquito nets controlled by physical buttons, this avoids significant physical movements and improves ease of operation. Furthermore, the laser TOF circuit boasts high detection accuracy and a long detection distance, reaching up to four meters, making it suitable for gesture control requirements of beds of different sizes.

[0062] Please see Figure 5 In one embodiment of this utility model, the intelligent mosquito net control circuit further includes:

[0063] The battery is connected to the first laser TOF circuit 03, the second laser TOF circuit 04, the first motor drive circuit 01, the second motor drive circuit 02, and the main control circuit 05, respectively.

[0064] The battery charging circuit is connected to both the external power input terminal and the battery. The battery charging circuit is used to convert the input voltage of the external power input terminal into the charging voltage output of the battery.

[0065] In one embodiment, the smart mosquito net control circuit further includes a TYPE-C interface, and the battery charging circuit includes a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a third capacitor C3, a fourth capacitor C4, a red light-emitting diode LEDR, a green light-emitting diode LEDG, and a charging chip U3.

[0066] Specifically, the VBUS pin of the TYPE-C interface, the VCC pin and CE pin of the charging chip U3, one end of the third capacitor C3, and one end of the seventh resistor R7 are connected; the CC1 pin of the TYPE-C interface is connected to one end of the fifth resistor R5; the CC2 pin of the TYPE-C interface is connected to one end of the sixth resistor R6; the GND pin of the TYPE-C interface, the other end of the fifth resistor R5, the other end of the sixth resistor R6, the other end of the third capacitor C3, one end of the eighth resistor R8, the TEMP pin of the charging chip U3, the GND pin of the charging chip U3, and one end of the fourth capacitor C4 are grounded; the other end of the eighth resistor R8 is connected to the PROG pin of the charging chip U3; the other end of the seventh resistor R7, the positive terminal of the red LEDR, and the positive terminal of the green LEDG are connected; the negative terminal of the red LEDR is connected to the CHRG pin of the charging chip U3; the negative terminal of the green LEDG is connected to the STDBY pin of the charging chip U3; and the BAT pin of the charging chip U3 and the other end of the fourth capacitor C4 are connected to the battery.

[0067] In this embodiment, the battery can be a lithium battery, which is small in size and suitable for power supply scenarios of smart mosquito nets. The charging chip U3 can be an AS4056 charging chip U3, which is suitable for charging management scenarios of lithium batteries.

[0068] In this embodiment, the battery is connected to the first laser TOF circuit 03, the second laser TOF circuit 04, the first motor drive circuit 01, the second motor drive circuit 02, and the main control circuit 05, providing power for the circuit's distance detection, motor drive, and control processes. When the battery power is low, the battery charging circuit is activated. An external power source inputs voltage through a TYPE-C interface, which is converted by the battery charging circuit, and the charging voltage is output to the battery for charging. The TYPE-C interface receives voltage signals from the external power source; the VBUS pin provides the voltage signal; and the CC1 and CC2 pins are connected to the fifth resistor R5 and the sixth resistor R6, respectively, to help detect the connection status and regulate the current. The charging chip U3 manages the charging process. Its VCC pin provides power to the charging chip U3, the CE pin controls charging start / stop, the TEMP pin is used for temperature monitoring, the CHRG pin is connected to the red LED LEDR to indicate the charging status, and the STDBY pin is connected to the green LED to indicate the charging completion status. The fifth resistor R5 to the eighth resistor R8, as well as the third capacitor C3 and the fourth capacitor C4, help regulate the smooth transmission of voltage and current.

[0069] Please see Figure 5 In one embodiment of this utility model, the intelligent mosquito net control circuit further includes:

[0070] The battery protection circuit is connected to the battery. It is used to detect the charging and discharging status of the battery and to cut off / restore the charging and discharging of the battery according to the charging and discharging status.

[0071] In this embodiment, the battery protection circuit may include a fifth capacitor C5, a ninth resistor R9, and a battery protection chip U4. The battery protection chip U4 may be a DW03A chip, which can provide overcharge, over-discharge, overcurrent, and short-circuit protection, thereby improving the battery's lifespan and protecting the circuit's electrical safety.

[0072] Please see Figure 6 In one embodiment of this utility model, the intelligent mosquito net control circuit further includes:

[0073] The voltage regulator circuit is connected to the battery, the first laser TOF circuit 03, the second laser TOF circuit 04, and the main control circuit 05. The voltage regulator circuit is used to regulate the output of the power supplied by the battery.

[0074] In this embodiment, the voltage regulator circuit may include a sixth capacitor C6, a seventh capacitor C7, and a voltage regulator chip U5, which can regulate the battery voltage before outputting it to avoid the impact of voltage instability on subsequent circuits.

[0075] Please see Figure 3 and Figure 4 In one embodiment of the present invention, the first laser TOF circuit 03 includes a first laser TOF sensor U1, a first resistor R1, a second resistor R2 and a first capacitor C1.

[0076] Specifically, the SCL pin of the first laser TOF sensor U1 and one end of the first resistor R1 are connected to the first signal terminal of the main control circuit 05; the SDA pin of the first laser TOF sensor U1 and one end of the second resistor R2 are connected to the second signal terminal of the main control circuit 05; the VCC pin of the first laser TOF sensor U1, one end of the first capacitor C1, the other end of the first resistor R1, and the other end of the second resistor R2 are connected to the power supply terminal of the first laser TOF circuit 03; the GND pin of the first laser TOF sensor U1 and the other end of the first capacitor C1 are grounded; and the GPIO pin of the first laser TOF sensor U1 is connected to the third signal terminal of the main control circuit 05.

[0077] The second laser TOF circuit 04 includes a second laser TOF sensor U2, a third resistor R3, a fourth resistor R4, and a second capacitor C2;

[0078] Specifically, the SCL pin of the second laser TOF sensor U2 and one end of the third resistor R3 are connected to the fourth signal terminal of the main control circuit 05; the SDA pin of the second laser TOF sensor U2 and one end of the fourth resistor R4 are connected to the fifth signal terminal of the main control circuit 05; the VCC pin of the second laser TOF sensor U2, one end of the second capacitor C2, the other end of the third resistor R3, and the other end of the fourth resistor R4 are connected to the power supply terminal of the second laser TOF circuit 04; the GND pin of the second laser TOF sensor U2 and the other end of the second capacitor C2 are grounded; and the GPIO pin of the second laser TOF sensor U2 is connected to the third signal terminal of the main control circuit 05.

[0079] In this embodiment, the first laser TOF sensor U1 and the second laser TOF sensor U2 operate independently, measuring distance information by emitting and receiving reflected laser light. Each sensor interacts with the main control circuit 05 via its SDA and SCL pins. The main control circuit 05 processes the returned data from each sensor via the I2C protocol to obtain the distance information between the hand and the laser TOF sensor. Furthermore, each laser TOF sensor also has a GPIO pin, through which the main control circuit 05 can send signals to control the sensor's operation. For example, during the day, when the user no longer needs to use the mosquito net, the main control circuit 05 can send a control signal via the GPIO pin to instruct the laser TOF sensor to stop working, thereby saving power.

[0080] This utility model also proposes an intelligent mosquito net, which includes a first motor, a second motor, and an intelligent mosquito net control circuit. The specific structure of the intelligent mosquito net control circuit is as described in the above embodiments. The first motor is connected to a first motor drive circuit and is used to drive the unfolding / retraction of a first opening / closing portion of the intelligent mosquito net. The second motor is connected to a second motor drive circuit and is used to drive the unfolding / retraction of a second opening / closing portion of the intelligent mosquito net. Since this intelligent mosquito net adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0081] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A smart mosquito net control circuit, characterized in that, The smart mosquito net includes a first motor and a second motor. The first motor is used to drive the first opening and closing part of the smart mosquito net to unfold / retract, and the second motor is used to drive the second opening and closing part of the smart mosquito net to unfold / retract. The intelligent mosquito net control circuit includes: A first motor drive circuit is connected to the first motor, and the first motor drive circuit is used to drive the first motor to work. A second motor drive circuit is connected to the second motor and is used to drive the second motor to work. The first laser TOF circuit is used to emit a first laser into a preset detection area and receive a corresponding first reflected signal to measure the distance between the user's hand and the first laser TOF circuit, and output a first distance signal based on the first reflected signal. The second laser TOF circuit is used to emit a second laser into a preset detection area and receive a second reflection signal corresponding to the second laser, so as to measure the distance between the user's hand and the second laser TOF circuit, and output a second distance signal according to the second reflection signal; The main control circuit is connected to the first motor drive circuit, the second motor drive circuit, the first laser TOF circuit, and the second laser TOF circuit respectively. The main control circuit is used to detect a first distance change between the user's hand and the first laser TOF circuit based on the first distance signal, detect a second distance change between the user's hand and the second laser TOF circuit based on the second distance signal, and control the operation of the first motor drive circuit and the second motor drive circuit based on the first distance change and the second distance change.

2. The intelligent mosquito net control circuit as described in claim 1, characterized in that, Also includes: The battery is connected to the first laser TOF circuit, the second laser TOF circuit, the first motor drive circuit, the second motor drive circuit, and the main control circuit, respectively. A battery charging circuit is connected to both an external power input terminal and the battery. The battery charging circuit is used to convert the input voltage of the external power input terminal into the charging voltage output of the battery.

3. The intelligent mosquito net control circuit as described in claim 2, characterized in that, Also includes: A battery protection circuit, wherein the battery protection circuit is connected to the battery; The battery protection circuit is used to detect the charging and discharging state of the battery, and to cut off / restore the charging and discharging of the battery according to the charging and discharging state of the battery.

4. The intelligent mosquito net control circuit as described in claim 2, characterized in that, Also includes: A voltage regulator circuit is connected to the battery, the first laser TOF circuit, the second laser TOF circuit, and the main control circuit, respectively. The voltage regulator circuit is used to regulate the power supplied by the battery and output it.

5. The intelligent mosquito net control circuit as described in claim 1, characterized in that, The first laser TOF circuit includes a first laser TOF sensor, a first resistor, a second resistor, and a first capacitor; Specifically, the SCL pin of the first laser TOF sensor and one end of the first resistor are connected to the first signal terminal of the main control circuit; the SDA pin of the first laser TOF sensor and one end of the second resistor are connected to the second signal terminal of the main control circuit; the VCC pin of the first laser TOF sensor, one end of the first capacitor, the other end of the first resistor, and the other end of the second resistor are connected to the power supply terminal of the first laser TOF circuit; the GND pin of the first laser TOF sensor is grounded to the other end of the first capacitor; and the GPIO pin of the first laser TOF sensor is connected to the third signal terminal of the main control circuit.

6. The intelligent mosquito net control circuit as described in claim 1, characterized in that, The second laser TOF circuit includes a second laser TOF sensor, a third resistor, a fourth resistor, and a second capacitor; Specifically, the SCL pin of the second laser TOF sensor and one end of the third resistor are connected to the fourth signal terminal of the main control circuit; the SDA pin of the second laser TOF sensor and one end of the fourth resistor are connected to the fifth signal terminal of the main control circuit; the VCC pin of the second laser TOF sensor, one end of the second capacitor, the other end of the third resistor, and the other end of the fourth resistor are connected to the power supply terminal of the second laser TOF circuit; the GND pin of the second laser TOF sensor and the other end of the second capacitor are grounded; and the GPIO pin of the second laser TOF sensor is connected to the third signal terminal of the main control circuit.

7. The intelligent mosquito net control circuit as described in claim 2, characterized in that, It also includes a TYPE-C interface, and the battery charging circuit includes a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a third capacitor, a fourth capacitor, a red light-emitting diode, a green light-emitting diode, and a charging chip; Specifically, the VBUS pin of the TYPE-C interface, the VCC pin of the charging chip, the CE pin of the charging chip, one end of the third capacitor, and one end of the seventh resistor are connected; the CC1 pin of the TYPE-C interface is connected to one end of the fifth resistor; the CC2 pin of the TYPE-C interface is connected to one end of the sixth resistor; the GND pin of the TYPE-C interface, the other end of the fifth resistor, the other end of the sixth resistor, the other end of the third capacitor, one end of the eighth resistor, the TEMP pin of the charging chip, the GND pin of the charging chip, and one end of the fourth capacitor are grounded; the other end of the eighth resistor is connected to the PROG pin of the charging chip; the other end of the seventh resistor, the positive terminal of the red LED, and the positive terminal of the green LED are connected; the negative terminal of the red LED is connected to the CHRG pin of the charging chip; the negative terminal of the green LED is connected to the STDBY pin of the charging chip; and the BAT pin of the charging chip and the other end of the fourth capacitor are connected to the battery.

8. The intelligent mosquito net control circuit as described in claim 2, characterized in that, The battery is a lithium battery.

9. A smart mosquito net, characterized in that, Includes a first motor, a second motor, and the intelligent mosquito net control circuit as described in any one of claims 1 to 8; The first motor is connected to the first motor drive circuit, and the first motor is used to drive the first opening and closing part of the smart mosquito net to unfold / fold up. The second motor is connected to the second motor drive circuit, and the second motor is used to drive the second opening / closing part of the smart mosquito net to unfold / fold.

10. The intelligent mosquito net as described in claim 9, characterized in that, The first motor is a stepper motor and / or the second motor is a stepper motor.

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