A garbage sorting system

Abstract

A garbage sorting system comprises an MCU unit, a multi-channel electronic scale acquisition unit, a multi-channel electric latch unit, a forward and reverse drive unit, a multi-channel door opening feedback unit, a multi-channel door closing feedback unit, a multi-channel anti-pinch feedback unit, a multi-channel full overflow feedback unit, a control output unit and a current monitoring unit. Compared with the prior art, the present invention has the following advantages: (1) It solves the problem of electric control automation of garbage sorting; (2) It solves the problem that valuable recycled garbage cannot be automatically weighed; (3) It solves the cumbersome problem of managing multiple keys for one door and one lock; (4) It solves the problem of not being able to open the door without contact; (5) It solves the problem that the garbage bin cannot be automatically reported to remind staff after it is full; (6) It solves the problem of not being able to automatically spray disinfection.

Description

Technical Field

[0001] The present invention relates to the technical field of garbage classification, and in particular to a garbage classification system. Background Art

[0002] Urban waste sorting has become an inevitable trend in social development. However, the main problems with current waste sorting systems include: a lack of electronic control automation, inability to automatically weigh valuable recyclable waste, the inconvenience of managing multiple keys per door, the inability to open the door contactlessly, the inability to automatically notify staff when the trash can is full, and the inability to automatically spray disinfectants. Therefore, it is necessary to design a control circuit specifically for waste sorting to address these issues. Summary of the Invention

[0003] The purpose of the present invention is to provide a garbage sorting system, which aims to solve the following problems existing in the current garbage sorting: there is no electronic control automation, valuable recyclable garbage cannot be automatically weighed, the management of multiple keys for one door is cumbersome, the door cannot be opened without contact, the garbage bin cannot be automatically reported to remind the staff when it is full, and it cannot be automatically sprayed for disinfection.

[0004] The present invention is implemented as follows: a technical solution adopted by a garbage sorting system of the present invention is: automatic control of a garbage sorting box at a garbage drop point, the garbage drop point including a plurality of garbage sorting boxes, each of the garbage sorting boxes including an input port, a garbage bin opening, and a garbage bin, the garbage bin being located inside the garbage sorting box, the garbage bin opening being used for taking out and putting in the garbage bin, the input port being used for putting in garbage, the input port being equipped with an automatic door, the automatic door being equipped with a motor, the motor being used to drive the automatic door to rotate, the garbage bin inlet and outlet being equipped with an electric latch door, the electric latch door being equipped with an electric latch, the electric latch being used to open and lock the electric latch door;

[0005] The garbage sorting system includes an MCU unit, a multi-channel electronic scale acquisition unit, a multi-channel electric latch unit, a forward and reverse drive unit, a multi-channel door opening feedback unit, a multi-channel door closing feedback unit, a multi-channel anti-pinch feedback unit, a multi-channel full overflow feedback unit, a control output unit, and a current monitoring unit; the MCU unit is respectively connected to the multi-channel electronic scale acquisition unit, the multi-channel electric latch unit, the forward and reverse drive unit, the multi-channel door opening feedback unit, the multi-channel door closing feedback unit, the multi-channel anti-pinch feedback unit, the multi-channel full overflow feedback unit, the multi-channel human body approach feedback unit, and the control output unit, and the current monitoring unit is respectively connected to the forward and reverse drive unit and the MCU unit;

[0006] The multi-channel electronic scale collection unit is used to collect weight data of the garbage stored in the garbage bin through a pressure sensor installed at the bottom of the garbage bin, and transmit the weight data to the MCU unit to realize the function of automatic weighing of valuable recycling garbage;

[0007] The multi-channel electric lock unit is used to monitor the door magnetic state and the lock tongue state of the electric lock, and transmit the door magnetic state and the lock tongue state to the MCU unit, and output the lock control signal issued by the MCU unit according to the door magnetic state and the lock tongue state to the electric lock, so as to realize the opening and locking of the electric lock;

[0008] The current monitoring unit is used to monitor the current of the motor. The MCU unit adjusts the current output to the motor by the forward and reverse drive unit according to the current signal of the motor transmitted by the current monitoring unit, thereby providing overcurrent protection for the motor.

[0009] The forward and reverse driving unit is used to drive the motor to realize the forward and reverse rotation of the automatic door according to the control signal of the MCU unit, thereby opening or closing the input port;

[0010] The multi-way door opening feedback unit is used to monitor whether the automatic door is fully opened through the door opening limit sensor installed on the automatic door, and send a door fully opened monitoring signal to the MCU unit, and the MCU unit controls whether the forward and reverse drive unit stops working according to the door fully opened monitoring signal;

[0011] The multi-way door closing feedback unit is used to monitor whether the automatic door is fully closed through the door closing limit sensor installed on the automatic door, and send a door fully closed monitoring signal to the MCU unit, and the MCU unit controls whether the forward and reverse drive unit stops working according to the door fully closed monitoring signal;

[0012] The multi-channel anti-pinch feedback unit is used to monitor whether there is an object at the door when the automatic door is closed through the grating installed at the door opening of the automatic door, and send the door object monitoring signal to the MCU unit. The MCU unit controls whether the forward and reverse drive unit stops working according to the door object monitoring signal.

[0013] The multi-channel full and overflow feedback unit is used to monitor whether the trash can is full through the trash can mouth grating installed on the top of the trash can, and send a full monitoring signal to the MCU unit and then to the host computer through the MCU unit, so as to realize the function of automatically reporting the full and overflowing trash can to remind the staff;

[0014] The multi-channel human approach feedback unit is used to monitor whether a human body approaches the automatic door through a human body approach sensor installed on the automatic door, and send a human body approach monitoring signal to the MCU unit, and the MCU unit controls the forward and reverse drive unit according to the human body approach monitoring signal, so that when a human body approaches, the forward and reverse drive unit drives the motor to rotate the automatic door to open the input port, and when the human body leaves, the forward and reverse drive unit drives the motor to rotate the automatic door to close the input port;

[0015] The control output unit is used for the MCU unit to output a control signal to control an external device to implement a specified function, wherein the specified function includes disinfection, deodorization and cleaning.

[0016] Furthermore, the garbage classification system also includes a sound prompt unit, a display and key input unit, a serial communication unit, a temperature and humidity sensor unit, and a power supply unit connected to the MCU unit; the sound prompt unit is used to make a sound alarm for the alarm signal issued by the MCU unit, and to issue a prompt sound for each working state of the MCU unit; the display and key input unit is used to display the working state of the MCU unit and to set the MCU unit to realize human-computer interaction function; the serial communication unit is used for the MCU unit to communicate with the host computer, on the one hand, the MCU unit receives instructions from the host computer through the serial communication unit, and on the other hand, the MCU unit uploads the collected data and processing and analysis results to the host computer for storage or for processing by the host computer through the serial communication unit; the temperature and humidity sensor unit is used to collect temperature and humidity data through the temperature and humidity sensor installed at the garbage disposal point, and transmit it to the MCU unit for processing and analysis; the power supply unit is used to provide working power for the garbage classification system.

[0017] Furthermore, the MCU unit includes a microprocessor U3, a crystal oscillator Y1, capacitors C13 and C15, a light-emitting diode D5, and a resistor R22; pin 30 of the microprocessor U3 is respectively connected to one end of the crystal oscillator Y1 and one end of the capacitor C15, and the other end of the capacitor C15 is grounded; pin 13 of the microprocessor U3 is respectively connected to the other end of the crystal oscillator Y1 and one end of the capacitor C13, and the other end of the capacitor C13 is grounded; pin 2 of the microprocessor U3 is connected to the cathode of the light-emitting diode D5, the anode of the light-emitting diode D5 is connected to one end of the resistor R22, and the other end of the resistor R22 is connected to the terminal; pin 1 of the microprocessor U3 is a terminal RX for receiving data; Pin 3 of the microprocessor U3 is a terminal BUZZER, which is used to send a sound control signal to the sound prompt unit; Pin 4 of the microprocessor U3 is a terminal PD_SCK, which is used to input a digital signal; Pin 5 of the microprocessor U3 is a terminal DOUT, which is used to output a digital signal; Pin 7 and Pin 28 of the microprocessor U3 are connected to terminals respectively; Pin 8 of the microprocessor U3 is a terminal RASTER, which is used to receive the door object monitoring signal; Pin 9 of the microprocessor U3 is a terminal OVERFLOW, which is used to receive the full monitoring signal; Pin 10 of the microprocessor U3 is a terminal OPEN, which is used to receive the door opening monitoring signal; The pin is the terminal SHUT, which is used to receive the door closing detection signal; the pin 14 of the microprocessor U3 is the terminal near, which is used to receive the human body approaching detection signal; the pins 15, 16, 17 and 19 of the microprocessor U3 are the terminals OUT-1, OUT-2, OUT-3 and OUT-4 respectively, which are used to output the control signal to the control output unit; the pin 20 of the microprocessor U3 is the terminal STB, which is used to control whether the power board is working; the pin 21 of the microprocessor U3 is the terminal CLK, which is used to input the clock; the pin 22 of the microprocessor U3 is the terminal DIO, which is used for input and output of digital signals; the pin 23 of the microprocessor U3 is the terminal LOCK, used to output the lock tongue control signal of the electric lock; Pin 24 of the microprocessor U3 is the terminal GATE_MAGNETISM, used to output the door magnetic control signal of the electric lock; Pin 25 of the microprocessor U3 is the terminal LOCK_DATA, used to output the lock control signal; Pin 26 of the microprocessor U3 is the terminal LOCK_CLK, used to output the clock signal to the multi-way electric lock unit; Pin 27 of the microprocessor U3 is the terminal LOCK_RCLK, used to receive the clock signal of the multi-way electric lock unit; Pin 32 of the microprocessor U3 is the terminal SCL, which is the clock line; Pin 35 of the microprocessor U3 is the terminal SDA, which is the data line;Pin 36 of the microprocessor U3 is terminal REV, used to output a reverse control signal to the forward / reverse drive unit; pin 37 of the microprocessor U3 is terminal FWD, used to output a forward control signal to the forward / reverse drive unit; pins 38, 39, and 40 of the microprocessor U3 are terminals A, B, and C, respectively, used to input sampled data; pin 41 of the microprocessor U3 is terminal INH-1, an enable pin; pin 43 of the microprocessor U3 is terminal RDE, a communication protocol terminal; and pin 44 of the microprocessor U3 is terminal TX, used to transmit data.

[0018] Furthermore, the multi-channel electronic scale acquisition unit includes sampling chips U8 and U9, and an electronic scale acquisition circuit; the sampling chips U8 and U9 are used to transmit the weight data collected by the electronic scale acquisition circuit to the MCU unit; the electronic scale acquisition circuit includes a first electronic scale acquisition circuit, a second electronic scale acquisition circuit, a third electronic scale acquisition circuit, a fourth electronic scale acquisition circuit, a fifth electronic scale acquisition circuit, a sixth electronic scale acquisition circuit, a seventh electronic scale acquisition circuit, and an eighth electronic scale acquisition circuit; the first electronic scale acquisition circuit is used to collect the weight data of the first trash can. According to the invention, the second electronic scale acquisition circuit is used to collect weight data of the second trash can, the third electronic scale acquisition circuit is used to collect weight data of the third trash can, the fourth electronic scale acquisition circuit is used to collect weight data of the fourth trash can, the fifth electronic scale acquisition circuit is used to collect weight data of the fifth trash can, the sixth electronic scale acquisition circuit is used to collect weight data of the sixth trash can, the seventh electronic scale acquisition circuit is used to collect weight data of the seventh trash can, and the eighth electronic scale acquisition circuit is used to collect weight data of the eighth trash can;

[0019] The sampling chips U8 and U9, and the electronic scale acquisition circuit, can be expanded as the number of the trash cans increases.

[0020] Furthermore, the multi-channel electric lock unit includes a DA conversion chip U12, sampling chips U13 and U14, and an electric lock circuit; the DA conversion chip U12 is used to transmit the lock control signal issued by the MCU unit to the electric lock circuit to realize the opening and locking of the electric lock, the sampling chip U13 is used to transmit the door magnetic state of the electric lock collected by the electric lock circuit to the MCU unit, and the sampling chip U14 is used to transmit the lock tongue state of the electric lock collected by the electric lock circuit to the MCU unit;

[0021] The electric latch lock circuit includes a first electric latch lock circuit, a second electric latch lock circuit, a third electric latch lock circuit, a fourth electric latch lock circuit, a fifth electric latch lock circuit, a sixth electric latch lock circuit, a seventh electric latch lock circuit, and an eighth electric latch lock circuit; the first electric latch lock circuit is used to control the opening and locking of the first electric latch lock, and collect the door magnetic state and lock tongue state of the first electric latch lock; the second electric latch lock circuit is used to control the opening and locking of the second electric latch lock, and collect the door magnetic state and lock tongue state of the second electric latch lock; the third electric latch lock circuit is used to control the opening and locking of the third electric latch lock, and collect the door magnetic state and lock tongue state of the third electric latch lock, and the fourth electric latch lock circuit is used to control the opening and locking of the third electric latch lock, and collect the door magnetic state and lock tongue state of the third electric latch lock. The lock circuit is used to control the opening and locking of the fourth electric bolt lock, and collect the door magnetic state and lock tongue state of the fourth electric bolt lock; the fifth electric bolt lock circuit is used to control the opening and locking of the fifth electric bolt lock, and collect the door magnetic state and lock tongue state of the fifth electric bolt lock; the sixth electric bolt lock circuit is used to control the opening and locking of the sixth electric bolt lock, and collect the door magnetic state and lock tongue state of the sixth electric bolt lock; the seventh electric bolt lock circuit is used to control the opening and locking of the seventh electric bolt lock, and collect the door magnetic state and lock tongue state of the seventh electric bolt lock; the eighth electric bolt lock circuit is used to control the opening and locking of the eighth electric bolt lock, and collect the door magnetic state and lock tongue state of the eighth electric bolt lock;

[0022] The DA conversion chip U12, the sampling chips U13 and U14, and the electric lock circuit can be expanded as the number of the electric locks increases.

[0023] Furthermore, the current monitoring unit includes a current detection chip U11, a voltage regulator diode D7, a polarity capacitor C68, capacitors C66, C67, C69, C70, and resistors R82, R62, R63, R67, and R64; pin 2 of the current detection chip U11 is grounded, pin 5 of the current detection chip U11 is respectively connected to a terminal and one end of the capacitor C67, the other end of the capacitor C67 is grounded, pin 1 of the current detection chip U11 is respectively connected to one end of the resistor R67 and one end of the capacitor C70, the other end of the resistor R67 and the other end of the capacitor C70 are respectively grounded, one end of the capacitor C70 is also connected to one end of the resistor R64, and the other end of the resistor R64 is respectively connected to the negative electrode of the voltage regulator diode D7 and the analog-to-digital conversion of the microprocessor U3. The pin 3 of the current detection chip U11 is connected to one end of the resistor R62, the other end of the resistor R62 is respectively connected to one end of the resistor R82 and one end of the resistor R61, the other end of the resistor R82 is grounded, one end of the resistor R82 is also connected to the positive electrode of the polarity capacitor C68, the negative electrode of the polarity capacitor C68 is grounded, the positive electrode of the polarity capacitor C68 is also respectively connected to one end of the capacitor C69 and the power supply voltage VCC, the other end of the capacitor C69 is grounded, the pin 4 of the current detection chip U11 is connected to one end of the resistor R63, the other end of the resistor R63 is respectively connected to the other end of the resistor R61 and one end of the capacitor C66, one end of the capacitor C66 is also connected to the voltage terminal MOS_VCC of the motor, and the other end of the capacitor C66 is grounded;

[0024] The forward and reverse drive unit includes control chips U25 and U26, and a forward and reverse drive circuit; the forward and reverse drive circuit includes an interface J22, MOS tubes Q42, Q44, Q39, Q41, transistors Q43, Q45, Q46, Q40, Q47, Q48, light-emitting diodes D6, D20, capacitor C71, resistors R50, R52, R48, R60, R73, R68, R49, R75, R74, R51, R65, R66, R43, R44, R47, R59, R79, R45, R76, R46, R80, R81; the control chip U25 is used to receive and transmit the forward control signal; the control chip U26 is used to receive and transmit the forward control signal. The reverse control signal; Pin 3 of the control chip U25 is connected to the terminal FWD, Pin 10, Pin 11, and Pin 9 of the control chip U25 are respectively connected to Terminal A, Terminal B, and Terminal C, Pin 6 of the control chip U25 is grounded, Pin 13, Pin 14, Pin 15, Pin 12, Pin 1, Pin 5, Pin 2, and Pin 4 of the control chip U25 are used to output the forward control signal to each of the motors respectively; Pin 3 of the control chip U26 is connected to the terminal REV, Pin 10, Pin 11, and Pin 9 of the control chip U26 are respectively connected to Terminal A, Terminal B, and Terminal C, Pin 6 of the control chip U26 is grounded, Pins 13, 14, 15, 12, 1, 5, 2, and 4 of the control chip U26 are used to output the reverse control signal to the motor; the interface J22 is used to connect the motor to output the forward control signal and the reverse control signal to the motor; pin 1 of the interface J22 is connected to the positive pole of the motor, and pin 2 of the interface J22 is connected to the negative pole of the motor. Pin 1 of the interface J22 is also connected to the D pole of the MOS tube Q39 and one end of the capacitor C71, and pin 2 of the interface J22 is also connected to the D pole of the MOS tube Q41 and the other end of the capacitor C71, and one end of the capacitor C71 is also connected to The positive electrode of the light-emitting diode D20 is also connected to the negative electrode of the light-emitting diode D6 and the D electrode of the MOS tube Q42 respectively. The other end of the capacitor C71 is also connected to one end of the resistor R66. The other end of the resistor R66 is connected to the negative electrode of the light-emitting diode D20. One end of the resistor R66 is also connected to one end of the resistor R65 and the D electrode of the MOS tube Q44 respectively. The other end of the resistor R65 is connected to the positive electrode of the light-emitting diode D6. The S electrode of the MOS tube Q44 is connected to one end of the resistor R50 and then to one end of the capacitor C66. The other end of the resistor R50 is connected to one end of the resistor R52 and the G electrode of the MOS tube Q44 respectively.The other end of the resistor R52 is connected to the collector of the transistor Q43, the emitter of the transistor Q43 is grounded, the base of the transistor Q43 is respectively connected to one end of the resistor R48 and one end of the resistor R60, the other end of the resistor R48 is grounded, the other end of the resistor R60 is connected to pin 13 of the control chip U25, the other end of the resistor R60 is also connected to one end of the resistor R75, the other end of the resistor R75 is respectively connected to one end of the resistor R74 and the base of the transistor Q46, the other end of the resistor R74 is grounded, the emitter of the transistor Q46 is grounded, and the transistor Q4 The collector of the transistor Q6 is connected to one end of the resistor R68, the other end of the resistor R68 is respectively connected to one end of the resistor R73 and the base of the transistor Q45, the other end of the resistor R73 is connected to the emitter of the transistor Q45 and then connected to the voltage terminal MOS_VCC of the motor, the collector of the transistor Q45 is connected to one end of the resistor R49, the other end of the resistor R49 is respectively connected to the G electrode of the MOS transistor Q39 and one end of the resistor R51, the other end of the resistor R51 is grounded, the S electrode of the MOS transistor Q39 is grounded, and the S electrode of the MOS transistor Q42 is also connected to one end of the resistor R43. The other end of the resistor R43 is respectively connected to the G electrode of the MOS tube Q42 and one end of the resistor R44, the other end of the resistor R44 is respectively connected to the collector of the transistor Q40, the emitter of the transistor Q40 is grounded, the G electrode of the transistor Q40 is respectively connected to one end of the resistor R47 and one end of the resistor R59, the other end of the resistor R47 is grounded, the other end of the resistor R59 is respectively connected to one end of the resistor R81 and pin 13 of the control chip U26, the other end of the resistor R81 is respectively connected to the base of the transistor Q48 and one end of the resistor R80, the other end of the resistor R80 is respectively connected to the base of the transistor Q48 and one end of the resistor R80. One end is grounded, the emitter of the transistor Q48 is grounded, the collector of the transistor Q48 is connected to one end of the resistor R76, the other end of the resistor R76 is respectively connected to one end of the resistor R79 and the base of the transistor Q47, the other end of the resistor R79 is connected to the emitter of the transistor Q47 and then to the voltage terminal MOS_VCC of the motor, the collector of the transistor Q47 is connected to one end of the resistor R45, the other end of the resistor R45 is respectively connected to the G terminal of the MOS transistor Q41 and one end of the resistor R46, the other end of the resistor R46 is grounded, and the S terminal of the MOS transistor Q41 is grounded;

[0025] The circuit monitoring unit and the forward and reverse driving circuit can be expanded according to the number of the motors; the control chips U25 and U26, the circuit monitoring unit and the forward and reverse driving circuit can be expanded according to the increase in the number of the motors.

[0026] Furthermore, the multi-way door opening feedback unit includes a control chip U31 and a door opening feedback circuit; the control chip U31 is used to transmit the door opening full monitoring signal detected by the door opening feedback circuit to the MCU unit; the door opening feedback circuit includes a first door opening feedback circuit, a second door opening feedback circuit, a third door opening feedback circuit, a fourth door opening feedback circuit, a fifth door opening feedback circuit, a sixth door opening feedback circuit, a seventh door opening feedback circuit, and an eighth door opening feedback circuit; the first door opening feedback circuit is used to detect the door opening full monitoring signal of the first automatic door, and the second door opening feedback circuit is used to detect the door-opening position monitoring signal of the second automatic door, the third door-opening feedback circuit is used to detect the door-opening position monitoring signal of the third automatic door, the fourth door-opening feedback circuit is used to detect the door-opening position monitoring signal of the fourth automatic door, the fifth door-opening feedback circuit is used to detect the door-opening position monitoring signal of the fifth automatic door, the sixth door-opening feedback circuit is used to detect the door-opening position monitoring signal of the sixth automatic door, the seventh door-opening feedback circuit is used to detect the door-opening position monitoring signal of the seventh automatic door, and the eighth door-opening feedback circuit is used to detect the door-opening position monitoring signal of the eighth automatic door;

[0027] The control chip U31 and the door opening feedback circuit can be expanded according to the increase in the number of automatic doors.

[0028] Furthermore, the multi-channel door closing feedback unit includes a control chip U32 and a door closing feedback circuit; the control chip U32 is used to transmit the door closing position monitoring signal detected by the door closing feedback circuit to the MCU unit; the door closing feedback circuit includes a first door closing feedback circuit, a second door closing feedback circuit, a third door closing feedback circuit, a fourth door closing feedback circuit, a fifth door closing feedback circuit, a sixth door closing feedback circuit, a seventh door closing feedback circuit, and an eighth door closing feedback circuit; the first door closing feedback circuit is used to detect the door closing position monitoring signal of the first automatic door, and the second door closing feedback circuit is used to detect the door-closing position monitoring signal of the second automatic door, the third door-closing feedback circuit is used to detect the door-closing position monitoring signal of the third automatic door, the fourth door-closing feedback circuit is used to detect the door-closing position monitoring signal of the fourth automatic door, the fifth door-closing feedback circuit is used to detect the door-closing position monitoring signal of the fifth automatic door, the sixth door-closing feedback circuit is used to detect the door-closing position monitoring signal of the sixth automatic door, the seventh door-closing feedback circuit is used to detect the door-closing position monitoring signal of the seventh automatic door, and the eighth door-closing feedback circuit is used to detect the door-closing position monitoring signal of the eighth automatic door;

[0029] The control chip U32 and the door closing feedback circuit can be expanded according to the increase in the number of automatic doors.

[0030] Furthermore, the multi-channel anti-hand pinching feedback unit includes a control chip U22 and a hand pinching feedback circuit; the control chip U22 is used to transmit the door object monitoring signal detected by the hand pinching feedback circuit to the MCU unit; the hand pinching feedback circuit includes a first hand pinching feedback circuit, a second hand pinching feedback circuit, a third hand pinching feedback circuit, a fourth hand pinching feedback circuit, a fifth hand pinching feedback circuit, a sixth hand pinching feedback circuit, a seventh hand pinching feedback circuit, and an eighth hand pinching feedback circuit; the first hand pinching feedback circuit is used to detect the door object monitoring signal of the first automatic door, and the second hand pinching feedback circuit is used to detect the door object monitoring signal of the first automatic door. for detecting the doorway object monitoring signal of the second automatic door, the third hand-pinching feedback circuit is used to detect the doorway object monitoring signal of the third automatic door, the fourth hand-pinching feedback circuit is used to detect the doorway object monitoring signal of the fourth automatic door, the fifth hand-pinching feedback circuit is used to detect the doorway object monitoring signal of the fifth automatic door, the sixth hand-pinching feedback circuit is used to detect the doorway object monitoring signal of the sixth automatic door, the seventh hand-pinching feedback circuit is used to detect the doorway object monitoring signal of the seventh automatic door, and the eighth hand-pinching feedback circuit is used to detect the doorway object monitoring signal of the eighth automatic door;

[0031] The control chip U22 and the hand-gripping feedback circuit can be expanded according to the increase in the number of automatic doors.

[0032] Furthermore, the multi-channel full overflow feedback unit includes a control chip U34 and a full overflow feedback circuit; the control chip U34 is used to transmit the full monitoring signal detected by the full overflow feedback circuit to the MCU unit; the full overflow feedback circuit includes a first full overflow feedback circuit, a second full overflow feedback circuit, a third full overflow feedback circuit, a fourth full overflow feedback circuit, a fifth full overflow feedback circuit, a sixth full overflow feedback circuit, a seventh full overflow feedback circuit, and an eighth full overflow feedback circuit; the first full overflow feedback circuit is used to detect the full monitoring signal of the first trash can mouth, the second full overflow feedback circuit is used to detect the full monitoring signal of the second trash can mouth, the full-fill-overflow feedback circuit is used to detect the full-fill monitoring signal of the second trash can opening, the third full-fill-overflow feedback circuit is used to detect the full-fill monitoring signal of the third trash can opening, the fourth full-fill-overflow feedback circuit is used to detect the full-fill monitoring signal of the fourth trash can opening, the fifth full-fill-overflow feedback circuit is used to detect the full-fill monitoring signal of the fifth trash can opening, the sixth full-fill-overflow feedback circuit is used to detect the full-fill monitoring signal of the sixth trash can opening, the seventh full-fill-overflow feedback circuit is used to detect the full-fill monitoring signal of the seventh trash can opening, and the eighth full-fill-overflow feedback circuit is used to detect the full-fill monitoring signal of the eighth trash can opening;

[0033] The control chip U34 and the full overflow feedback circuit can be expanded according to the increase in the number of the trash can openings.

[0034] Furthermore, the multi-channel human body approach feedback unit includes a control chip U33 and a human body approach feedback circuit; the control chip U33 is used to transmit the human body approach monitoring signal detected by the human body approach feedback circuit to the MCU unit; the human body approach feedback circuit includes a first human body approach feedback circuit, a second human body approach feedback circuit, a third human body approach feedback circuit, a fourth human body approach feedback circuit, a fifth human body approach feedback circuit, a sixth human body approach feedback circuit, a seventh human body approach feedback circuit, and an eighth human body approach feedback circuit; the first human body approach feedback circuit is used to detect the human body approach monitoring signal of the first said delivery port, the second human body approach feedback circuit is used to detect the human body approach monitoring signal of the first said delivery port, the second human body approach feedback circuit is used to detect the human body approach monitoring signal of the first said delivery port, the third human body approach feedback circuit is used to detect the human body approach monitoring signal of the first said delivery port, the fourth human body approach feedback circuit is used to detect the human body approach monitoring signal of the first said delivery port, the fifth human body approach feedback circuit, the sixth human body approach feedback circuit, the seventh human body approach feedback circuit, and the eighth human body approach feedback circuit; the first human body approach feedback circuit is used to detect the human body approach monitoring signal of the first said delivery port, the second human body approach feedback circuit is used to detect the human body approach monitoring signal of the first said delivery port, the third ... The proximity feedback circuit is used to detect a human body approaching monitoring signal at the second delivery port, the third human body approaching feedback circuit is used to detect a human body approaching monitoring signal at the third delivery port, the fourth human body approaching feedback circuit is used to detect a human body approaching monitoring signal at the fourth delivery port, the fifth human body approaching feedback circuit is used to detect a human body approaching monitoring signal at the fifth delivery port, the sixth human body approaching feedback circuit is used to detect a human body approaching monitoring signal at the sixth delivery port, the seventh human body approaching feedback circuit is used to detect a human body approaching monitoring signal at the seventh delivery port, and the eighth human body approaching feedback circuit is used to detect a human body approaching monitoring signal at the eighth delivery port;

[0035] The control chip U33 and the human body proximity feedback circuit can be expanded as the number of the delivery ports increases.

[0036] Compared with the prior art, the present invention provides a garbage sorting system, which includes an MCU unit, a multi-channel electronic scale acquisition unit, a multi-channel electric latch unit, a forward and reverse drive unit, a multi-channel door opening feedback unit, a multi-channel door closing feedback unit, a multi-channel anti-pinch feedback unit, a multi-channel full overflow feedback unit, a control output unit and a current monitoring unit. Compared with the prior art, the present invention has the following advantages: (1) It solves the problem of electric control automation of garbage sorting; (2) It solves the problem that valuable recycled garbage cannot be automatically weighed; (3) It solves the cumbersome problem of managing multiple keys for one door and one lock; (4) It solves the problem of not being able to open the door without contact; (5) It solves the problem that the garbage bin cannot automatically report to remind the staff after it is full; (5) It solves the problem of not being able to automatically spray disinfection. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. 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 paying any creative work.

[0038] Figure 1 This is a system structure diagram of a garbage classification system provided by an embodiment of the present invention.

[0039] Figure 2 This is a schematic diagram of the MCU unit circuit of a garbage classification system provided by an embodiment of the present invention.

[0040] Figure 3 This is a schematic circuit diagram of a forward and reverse drive unit of a garbage classification system provided by an embodiment of the present invention.

[0041] Figure 4 This is a circuit diagram of a multi-channel electronic scale collection unit of a garbage classification system provided by an embodiment of the present invention.

[0042] Figure 5 This is a circuit schematic diagram of a sound prompt unit of a garbage classification system provided by an embodiment of the present invention.

[0043] Figure 6 This is a circuit schematic diagram of a multi-way electric lock unit of a garbage classification system provided by an embodiment of the present invention.

[0044] Figure 7 This is a circuit schematic diagram of a temperature and humidity sensor unit in a garbage classification system provided by an embodiment of the present invention.

[0045] Figure 8 This is a circuit schematic diagram of a current monitoring unit of a garbage classification system provided by an embodiment of the present invention.

[0046] Figure 9 This is a circuit schematic diagram of a multi-way door opening feedback unit of a garbage classification system provided by an embodiment of the present invention.

[0047] Figure 10 This is a schematic circuit diagram of a power supply unit of a garbage classification system provided by an embodiment of the present invention.

[0048] Figure 11 This is a circuit schematic diagram of a multi-way door closing feedback unit of a garbage classification system provided by an embodiment of the present invention.

[0049] Figure 12 This is a circuit schematic diagram of a display and key input unit of a garbage classification system provided by an embodiment of the present invention.

[0050] Figure 13 This is a circuit schematic diagram of a multi-channel anti-pinch feedback unit of a garbage sorting system provided by an embodiment of the present invention.

[0051] Figure 14 This is a circuit schematic diagram of a serial communication unit of a garbage classification system provided by an embodiment of the present invention.

[0052] Figure 15This is a circuit schematic diagram of a multi-channel full and overflow feedback unit of a garbage classification system provided by an embodiment of the present invention.

[0053] Figure 16 This is a schematic diagram of a control output unit circuit of a garbage classification system provided by an embodiment of the present invention.

[0054] Figure 17 This is a circuit schematic diagram of a multi-channel human proximity feedback unit of a garbage classification system provided by an embodiment of the present invention.

[0055] Figure 18 This is a schematic diagram of an application scenario of a garbage classification system provided by an embodiment of the present invention.

[0056] The markings in the above figure are 1. MCU unit; 21. Multi-channel electronic scale acquisition unit; 22. Multi-channel electric bolt lock unit; 23. Forward and reverse drive unit; 24. Multi-channel door opening feedback unit; 25. Multi-channel door closing feedback unit; 26. Multi-channel anti-pinch feedback unit; 27. Multi-channel full overflow feedback unit; 28. Multi-channel human body approach feedback unit; 29. ​​Control output unit; 3. Power supply unit; 4. Current monitoring unit; 5. Sound prompt unit; 6. Display and key input unit; 7. Serial communication unit; 8. Temperature and humidity sensor unit; 81. Temperature and humidity sensor; 9. Host computer; 201. Pressure sensor; 202. Electric bolt lock; 203. Motor; 204. Door opening limit sensor; 205. Door closing limit sensor ; 206, the delivery port grating; 207, the trash can port grating; 208, the human body proximity sensor; 209, the external device; 221, the first electric lock circuit; 222, the second electric lock circuit; 223, the third electric lock circuit; 224, the fourth electric lock circuit; 225, the fifth electric lock circuit; 226, the sixth electric lock circuit; 227, the seventh electric lock circuit; 228, the eighth electric lock circuit; 211, the first electronic scale acquisition circuit; 212, the second electronic scale acquisition circuit; 213, the third electronic scale acquisition circuit; 214, the fourth electronic scale acquisition circuit; 215, the fifth electronic scale acquisition circuit; 216, the sixth electronic scale acquisition circuit; 217, the seventh electronic scale acquisition circuit Collector circuit; 218, the eighth electronic scale acquisition circuit; 231, forward and reverse drive circuit; 261, the first hand clamping feedback circuit; 262, the second hand clamping feedback circuit; 263, the third hand clamping feedback circuit; 264, the fourth hand clamping feedback circuit; 265, the fifth hand clamping feedback circuit; 266, the sixth hand clamping feedback circuit; 267, the seventh hand clamping feedback circuit; 268, the eighth hand clamping feedback circuit; 251, the first door closing feedback circuit; 252, the second door closing feedback circuit; 253, the third door closing feedback circuit; 254, the fourth door closing feedback circuit; 255, the fifth door closing feedback circuit; 256, the sixth door closing feedback circuit; 257, the seventh door closing feedback circuit; 258, the eighth 241, first door-closing feedback circuit; 242, second door-opening feedback circuit; 243, third door-opening feedback circuit; 244, fourth door-opening feedback circuit; 245, fifth door-opening feedback circuit; 246, sixth door-opening feedback circuit; 247, seventh door-opening feedback circuit; 248, eighth door-opening feedback circuit; 281, first human body approaching feedback circuit; 282, second human body approaching feedback circuit; 283, third human body approaching feedback circuit; 284, fourth human body approaching feedback circuit; 285, fifth human body approaching feedback circuit; 286, sixth human body approaching feedback circuit; 287, seventh human body approaching feedback circuit; 288, eighth human body approaching feedback circuit;271. First-route full-overflow feedback circuit; 272. Second-route full-overflow feedback circuit; 273. Third-route full-overflow feedback circuit; 274. Fourth-route full-overflow feedback circuit; 275. Fifth-route full-overflow feedback circuit; 276. Sixth-route full-overflow feedback circuit; 277. Seventh-route full-overflow feedback circuit; 278. Eighth-route full-overflow feedback circuit. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0058] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an element centered. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an element centered at the same time. It should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating an orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0059] The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0060] Reference Figures 1 to 18 The figure shows a preferred embodiment of the present invention.

[0061] Reference Figure 1 The present invention provides a garbage sorting system for automatically controlling a garbage sorting bin at a garbage disposal point. The garbage disposal point includes multiple garbage sorting bins. Each garbage sorting bin includes an input port, a garbage bin opening, and a garbage bin. The garbage bin is located inside the garbage sorting bin. The garbage bin opening is used for taking out and putting in the garbage bin, and the input port is used for putting in garbage. The input port is equipped with an automatic door, and the automatic door is equipped with a motor 203. The motor 203 is used to drive the automatic door to rotate. The garbage bin inlet and outlet are equipped with an electric latch 202 door. The electric latch 202 door is equipped with an electric latch 202. The electric latch 202 is used to open and lock the electric latch 202 door.

[0062] The garbage classification system includes an MCU unit 1, a multi-channel electronic scale acquisition unit 21, a multi-channel electric latch unit 22, a forward and reverse drive unit 23, a multi-channel door opening feedback unit 24, a multi-channel door closing feedback unit 25, a multi-channel anti-pinch feedback unit 26, a multi-channel full and overflow feedback unit 27, a control output unit 29, and a current monitoring unit 4; the MCU unit 1 is respectively connected to the multi-channel electronic scale acquisition unit 21, the multi-channel electric latch unit 22, the forward and reverse drive unit 23, the multi-channel door opening feedback unit 24, the multi-channel door closing feedback unit 25, the multi-channel anti-pinch feedback unit 26, the multi-channel full and overflow feedback unit 27, the multi-channel human body approach feedback unit 28, and the control output unit 29, and the current monitoring unit 4 is respectively connected to the forward and reverse drive unit 23 and the MCU unit 1;

[0063] The multi-channel electronic scale collection unit 21 is used to collect the weight data of the garbage stored in the garbage bin through the pressure sensor 201 installed at the bottom of the garbage bin, and transmit the weight data to the MCU unit 1 to realize the function of automatic weighing of valuable recycling garbage;

[0064] The multi-channel electric lock unit 22 is used to monitor the door magnetic state and the lock tongue state of the electric lock 202, and transmit the door magnetic state and the lock tongue state to the MCU unit 1. The MCU unit 1 outputs the lock control signal sent according to the door magnetic state and the lock tongue state to the electric lock 202 to realize the opening and locking of the electric lock 202;

[0065] The current monitoring unit 4 is used to monitor the current of the motor 203. The MCU unit 1 adjusts the current output to the motor 203 by the forward and reverse drive unit 23 according to the current signal of the motor 203 transmitted by the current monitoring unit 4, thereby providing overcurrent protection for the motor 203.

[0066] The forward and reverse driving unit 23 is used to drive the motor 203 according to the control signal of the MCU unit 1 to realize the forward and reverse rotation of the automatic door, thereby opening or closing the input port;

[0067] The multi-way door opening feedback unit 24 is used to monitor whether the automatic door is fully opened through the door opening limit sensor 204 installed on the automatic door, and send the door fully opened monitoring signal to the MCU unit 1. The MCU unit 1 controls whether the forward and reverse drive unit 23 stops working according to the door fully opened monitoring signal;

[0068] The multi-channel door closing feedback unit 25 is used to monitor whether the automatic door is fully closed through the door closing limit sensor 205 installed on the automatic door, and send the door fully closed monitoring signal to the MCU unit 1. The MCU unit 1 controls whether the forward and reverse drive unit 23 stops working according to the door fully closed monitoring signal.

[0069] The multi-channel anti-pinch feedback unit 26 is used to monitor whether there is an object at the door when the automatic door is closed through the door opening grating 206 installed at the door, and send the door object monitoring signal to the MCU unit 1. The MCU unit 1 controls whether the forward and reverse drive unit 23 stops working according to the door object monitoring signal.

[0070] The multi-channel full overflow feedback unit 27 is used to monitor whether the trash can is full through the trash can mouth grating 207 installed on the top of the trash can, and send the full monitoring signal to the MCU unit 1 and then to the host computer 9 through the MCU unit 1, so as to realize the function of automatically reporting the full and overflowing trash can to remind the staff;

[0071] The multi-channel human proximity feedback unit 28 is used to monitor whether a human is approaching the automatic door through the human proximity sensor 208 installed on the automatic door, and send a human proximity monitoring signal to the MCU unit 1. The MCU unit 1 controls the forward and reverse drive unit 23 according to the human proximity monitoring signal, so that when a human approaches, the forward and reverse drive unit 23 drives the motor 203 to rotate the automatic door to open the input port, and when the human leaves, the forward and reverse drive unit 23 drives the motor 203 to rotate the automatic door to close the input port;

[0072] The control output unit 29 is used for the MCU unit 1 to output a control signal to control the external device 209 to implement a specified function, which includes disinfection, deodorization, and cleaning.

[0073] The garbage classification system provided above has the following advantages: (1) It solves the problem of electronic control automation of garbage classification; (2) It solves the problem that valuable recycled garbage cannot be automatically weighed; (3) It solves the cumbersome problem of managing multiple keys for one door and one lock; (4) It solves the problem of not being able to open the door without contact; (5) It solves the problem that the garbage bin cannot be automatically reported to remind the staff after it is full; (5) It solves the problem of not being able to automatically spray disinfection.

[0074] As an embodiment of the present invention, refer to Figure 1The garbage classification system also includes a sound prompt unit 5, a display and key input unit 6, a serial communication unit 7, a temperature and humidity sensor unit 8, and a power supply unit 3 connected to the MCU unit 1; the sound prompt unit 5 is used to make a sound alarm for the alarm signal issued by the MCU unit 1, and to issue a prompt sound for each working state of the MCU unit 1; the display and key input unit 6 is used to display the working state of the MCU unit 1 and to set the MCU unit 1 to realize the human-computer interaction function; the serial communication unit 7 is used for the MCU unit 1 to communicate with the host computer 9. On the one hand, the MCU unit 1 receives the instructions of the host computer 9 through the serial communication unit 7, and on the other hand, the MCU unit 1 uploads the collected data and processing and analysis results to the host computer 9 for storage or for processing by the host computer 9 through the serial communication unit 7; the temperature and humidity sensor unit 8 is used to collect temperature and humidity data through the temperature and humidity sensor 81 installed at the garbage disposal point, and transmit it to the MCU unit 1 for processing and analysis; the power supply unit 3 is used to provide working power for the garbage classification system.

[0075] As an embodiment of the present invention, refer to Figure 2, MCU unit 1 includes a microprocessor U3, a crystal oscillator Y1, capacitors C13 and C15, a light-emitting diode D5, and a resistor R22; pin 30 of the microprocessor U3 is respectively connected to one end of the crystal oscillator Y1 and one end of the capacitor C15, and the other end of the capacitor C15 is grounded; pin 13 of the microprocessor U3 is respectively connected to the other end of the crystal oscillator Y1 and one end of the capacitor C13, and the other end of the capacitor C13 is grounded; pin 2 of the microprocessor U3 is connected to the cathode of the light-emitting diode D5, the anode of the light-emitting diode D5 is connected to one end of the resistor R22, and the other end of the resistor R22 is connected to the terminal; pin 1 of the microprocessor U3 is a terminal RX for receiving data; pin 3 of the microprocessor U3 is a terminal BUZZER for sending a signal to the sound prompt unit 5 Output sound control signal; Pin 4 of microprocessor U3 is terminal PD_SCK, which is used for input of digital signal; Pin 5 of microprocessor U3 is terminal DOUT, which is used for output of digital signal; Pin 7 and pin 28 of microprocessor U3 are connected to terminals respectively; Pin 8 of microprocessor U3 is terminal RASTER, which is used to receive door object monitoring signal; Pin 9 of microprocessor U3 is terminal OVERFLOW, which is used to receive full monitoring signal; Pin 10 of microprocessor U3 is terminal OPEN, which is used to receive door open position monitoring signal; Pin 11 of microprocessor U3 is terminal SHUT, which is used to receive door closed position monitoring signal; Pin 14 of microprocessor U3 is terminal NEAR, which is used to receive human body approaching monitoring signal. Signal; Pin 15, Pin 16, Pin 17 and Pin 19 of the microprocessor U3 are terminals OUT-1, OUT-2, OUT-3 and OUT-4, respectively, for outputting control signals to the control output unit 29; Pin 20 of the microprocessor U3 is terminal STB, for controlling whether the power board is working; Pin 21 of the microprocessor U3 is terminal CLK, for inputting a clock; Pin 22 of the microprocessor U3 is terminal DIO, for inputting and outputting digital signals; Pin 23 of the microprocessor U3 is terminal LOCK, for outputting a lock tongue control signal of the electric bolt lock 202; Pin 24 of the microprocessor U3 is terminal GATE_MAGNETISM, for outputting a door magnetic control signal of the electric bolt lock 202 signal; Pin 25 of the microprocessor U3 is the terminal LOCK_DATA for outputting a lock control signal; Pin 26 of the microprocessor U3 is the terminal LOCK_CLK for outputting a clock signal to the multi-way electric lock unit 22; Pin 27 of the microprocessor U3 is the terminal LOCK_RCLK for receiving a clock signal from the multi-way electric lock unit 22; Pin 32 of the microprocessor U3 is the terminal SCL for a clock line; Pin 35 of the microprocessor U3 is the terminal SDA for a data line; Pin 36 of the microprocessor U3 is the terminal REV for outputting a reverse control signal to the forward and reverse drive unit 23; Pin 37 of the microprocessor U3 is the terminal FWD for outputting a forward control signal to the forward and reverse drive unit 23;Pins 38, 39, and 40 of the microprocessor U3 are terminals A, B, and C, respectively, for inputting sampled data; pin 41 of the microprocessor U3 is terminal INH-1, which is an enable pin; pin 43 of the microprocessor U3 is terminal RDE, which is a communication protocol terminal; and pin 44 of the microprocessor U3 is terminal TX, which is used to transmit data.

[0076] As an embodiment of the present invention, refer to Figure 4 , the multi-channel electronic scale acquisition unit 21 includes sampling chips U8 and U9, and an electronic scale acquisition circuit; the sampling chips U8 and U9 are used to transmit the weight data collected by the electronic scale acquisition circuit to the MCU unit 1; the electronic scale acquisition circuit includes a first electronic scale acquisition circuit 211, a second electronic scale acquisition circuit 212, a third electronic scale acquisition circuit 213, a fourth electronic scale acquisition circuit 214, a fifth electronic scale acquisition circuit 215, a sixth electronic scale acquisition circuit 216, a seventh electronic scale acquisition circuit 217, and an eighth electronic scale acquisition circuit 218; the first electronic scale acquisition circuit 211 is used to acquire The second electronic scale acquisition circuit 212 is used to collect the weight data of the second trash can, the third electronic scale acquisition circuit 213 is used to collect the weight data of the third trash can, the fourth electronic scale acquisition circuit 214 is used to collect the weight data of the fourth trash can, the fifth electronic scale acquisition circuit 215 is used to collect the weight data of the fifth trash can, the sixth electronic scale acquisition circuit 216 is used to collect the weight data of the sixth trash can, the seventh electronic scale acquisition circuit 217 is used to collect the weight data of the seventh trash can, and the eighth electronic scale acquisition circuit 218 is used to collect the weight data of the eighth trash can;

[0077] Sampling chips U8 and U9, as well as the electronic scale acquisition circuit, can be expanded as the number of trash cans increases;

[0078] Pin 3 of the sampling chip U8 is connected to terminal PD_SCK, pin 11 of the sampling chip U8 is connected to terminal A, pin 10 of the sampling chip U8 is connected to terminal B, pin 9 of the sampling chip U8 is connected to terminal C, and pin 6 of the sampling chip U8 is connected to terminal INH-1; pin 3 of the sampling chip U9 is connected to terminal DOUT, pin 11 of the sampling chip U9 is connected to terminal A, pin 10 of the sampling chip U9 is connected to terminal B, pin 9 of the sampling chip U9 is connected to terminal C, and pin 6 of the sampling chip U9 is connected to terminal INH-1;

[0079] The first electronic scale acquisition circuit 211 includes an AD conversion chip U61, an interface J51, inductors L21 and L31, capacitors C161, C221, C281, C291, C301, C341, C311, and resistors R421 and R411; the interface J51 is used to connect the pressure sensor 201 installed at the bottom of the first trash can, and the AD conversion chip U61 is used to convert the analog signal input by the interface J51 into a digital signal; pin 5 of the interface J51 is connected to the power supply 5V, pin 4 of the interface J51 is connected to one end of the inductor L21, and the other end of the inductor L21 is respectively connected to one end of the capacitor C301, one end of the resistor R421 and one end of the capacitor C341, the other end of the capacitor C301 is grounded, the other end of the resistor R421 is respectively connected to one end of the capacitor C291 and one end of the capacitor C281, and one end of the capacitor C281 is also connected to pin 4 of the AD conversion chip U61, and the pin 5 of the interface J51 is connected to the power supply 5V. Pin 3 is connected to one end of the inductor L31, and the other end of the inductor L31 is respectively connected to the other end of the capacitor C341, one end of the resistor R411, and one end of the capacitor C311. The other end of the resistor R411 is respectively connected to the other end of the capacitor C291 and the other end of the capacitor C281. The other end of the capacitor C281 is also connected to pin 3 of the AD conversion chip U61. Pin 2 of the interface J51 is grounded. Pin 1 of the interface J51 is connected to one end of the capacitor C221. The other end of the capacitor C221 is respectively connected to the other end of the capacitor C311 and ground. Pin 2 of the AD conversion chip U61 is grounded. Pin 1 of the AD conversion chip U61 is connected to pin 7 and pin 8, and then connected to the analog voltage AVDD and one end of the capacitor C161. The other end of the capacitor C161 is grounded. Pin 5 of the AD conversion chip U61 is connected to pin 13 of the sampling chip U8, and pin 6 of the AD conversion chip U61 is connected to pin 13 of the sampling chip U9.

[0080] The second electronic scale acquisition circuit 212 includes an AD conversion chip U62, an interface J52, inductors L22 and L32, capacitors C162, C222, C282, C292, C302, C342, C312, and resistors R422 and R412; the interface J52 is used to connect the pressure sensor 201 installed at the bottom of the second trash can, and the AD conversion chip U62 is used to convert the analog signal input by the interface J52 into a digital signal; pin 5 of the interface J52 is connected to the power supply 5V, pin 4 of the interface J52 is connected to one end of the inductor L22, and the other end of the inductor L22 is respectively connected to one end of the capacitor C302, one end of the resistor R422 and one end of the capacitor C342, the other end of the capacitor C302 is grounded, the other end of the resistor R422 is respectively connected to one end of the capacitor C292 and one end of the capacitor C282, and one end of the capacitor C282 is also connected to pin 4 of the AD conversion chip U62, and the pin 1 of the interface J52 is connected to the power supply 5V. Pin 3 is connected to one end of the inductor L32, and the other end of the inductor L32 is respectively connected to the other end of the capacitor C342, one end of the resistor R412, and one end of the capacitor C312. The other end of the resistor R412 is respectively connected to the other end of the capacitor C292 and the other end of the capacitor C282. The other end of the capacitor C282 is also connected to pin 3 of the AD conversion chip U62. Pin 2 of the interface J52 is grounded. Pin 1 of the interface J52 is connected to one end of the capacitor C222. The other end of the capacitor C222 is respectively connected to the other end of the capacitor C312 and the ground. Pin 2 of the AD conversion chip U62 is grounded. Pin 1 of the AD conversion chip U62 is connected to pin 7 and pin 8, and then connected to the analog voltage AVDD and one end of the capacitor C162. The other end of the capacitor C162 is grounded. Pin 5 of the AD conversion chip U62 is connected to pin 14 of the sampling chip U8, and pin 6 of the AD conversion chip U62 is connected to pin 14 of the sampling chip U9.

[0081] The third electronic scale acquisition circuit 213 includes an AD conversion chip U63, an interface J53, inductors L23 and L33, capacitors C163, C223, C283, C293, C303, C343, C313, and resistors R423 and R413; the interface J53 is used to connect the pressure sensor 201 installed at the bottom of the third trash can, and the AD conversion chip U63 is used to convert the analog signal input by the interface J53 into a digital signal; pin 5 of the interface J53 is connected to the power supply 5V, pin 4 of the interface J53 is connected to one end of the inductor L23, and the other end of the inductor L23 is respectively connected to one end of the capacitor C303, one end of the resistor R423 and one end of the capacitor C343, the other end of the capacitor C303 is grounded, the other end of the resistor R423 is respectively connected to one end of the capacitor C293 and one end of the capacitor C283, and one end of the capacitor C283 is also connected to pin 4 of the AD conversion chip U63, and the pin 1 of the interface J53 is connected to the power supply 5V. Pin 3 is connected to one end of the inductor L33, and the other end of the inductor L33 is respectively connected to the other end of the capacitor C343, one end of the resistor R413 and one end of the capacitor C313. The other end of the resistor R413 is respectively connected to the other end of the capacitor C293 and the other end of the capacitor C283. The other end of the capacitor C283 is also connected to pin 3 of the AD conversion chip U63. Pin 2 of the interface J53 is grounded. Pin 1 of the interface J53 is connected to one end of the capacitor C223. The other end of the capacitor C223 is respectively connected to the other end of the capacitor C313 and the ground. Pin 2 of the AD conversion chip U63 is grounded. Pin 1 of the AD conversion chip U63 is connected to pin 7 and pin 8 and then connected to the analog voltage AVDD and one end of the capacitor C163. The other end of the capacitor C163 is grounded. Pin 5 of the AD conversion chip U63 is connected to pin 15 of the sampling chip U8, and pin 6 of the AD conversion chip U63 is connected to pin 15 of the sampling chip U9.

[0082] The fourth electronic scale acquisition circuit 214 includes an AD conversion chip U64, an interface J54, inductors L24 and L34, capacitors C164, C224, C284, C294, C304, C344, C314, and resistors R424 and R414; the interface J54 is used to connect the pressure sensor 201 installed at the bottom of the fourth trash can, and the AD conversion chip U64 is used to convert the analog signal input by the interface J54 into a digital signal; pin 5 of the interface J54 is connected to the power supply 5V, pin 4 of the interface J54 is connected to one end of the inductor L24, and the other end of the inductor L24 is respectively connected to one end of the capacitor C304, one end of the resistor R424, and one end of the capacitor C344, the other end of the capacitor C304 is grounded, the other end of the resistor R424 is respectively connected to one end of the capacitor C294 and one end of the capacitor C284, and one end of the capacitor C284 is also connected to pin 4 of the AD conversion chip U64, and the pin of the interface J54 is connected to the power supply 5V. Pin 3 is connected to one end of the inductor L34, and the other end of the inductor L34 is respectively connected to the other end of the capacitor C344, one end of the resistor R414 and one end of the capacitor C314. The other end of the resistor R414 is respectively connected to the other end of the capacitor C294 and the other end of the capacitor C284. The other end of the capacitor C284 is also connected to pin 3 of the AD conversion chip U64. Pin 2 of the interface J54 is grounded. Pin 1 of the interface J54 is connected to one end of the capacitor C224. The other end of the capacitor C224 is respectively connected to the other end of the capacitor C314 and ground. Pin 2 of the AD conversion chip U64 is grounded. Pin 1 of the AD conversion chip U64 is connected to pin 7 and pin 8 and then connected to the analog voltage AVDD and one end of the capacitor C164. The other end of the capacitor C164 is grounded. Pin 5 of the AD conversion chip U64 is connected to pin 12 of the sampling chip U8, and pin 6 of the AD conversion chip U64 is connected to pin 12 of the sampling chip U9.

[0083] The fifth electronic scale acquisition circuit 215 includes an AD conversion chip U65, an interface J55, inductors L25 and L35, capacitors C165, C225, C285, C295, C305, C345, C315, and resistors R425 and R415; the interface J55 is used to connect the pressure sensor 201 installed at the bottom of the fifth trash can, and the AD conversion chip U65 is used to convert the analog signal input by the interface J55 into a digital signal; pin 5 of the interface J55 is connected to the power supply 5V, pin 4 of the interface J55 is connected to one end of the inductor L25, and the other end of the inductor L25 is respectively connected to one end of the capacitor C305, one end of the resistor R425, and one end of the capacitor C345. The other end of the capacitor C305 is grounded, and the other end of the resistor R425 is respectively connected to one end of the capacitor C295 and one end of the capacitor C285. One end of the capacitor C285 is also connected to pin 4 of the AD conversion chip U65. Pin 3 is connected to one end of the inductor L35, the other end of the inductor L35 is respectively connected to the other end of the capacitor C345, one end of the resistor R415 and one end of the capacitor C315, the other end of the resistor R415 is respectively connected to the other end of the capacitor C295 and the other end of the capacitor C285, the other end of the capacitor C285 is also connected to pin 3 of the AD conversion chip U65, pin 2 of the interface J55 is grounded, pin 1 of the interface J55 is connected to one end of the capacitor C225, the other end of the capacitor C225 is respectively connected to the other end of the capacitor C315 and the ground, pin 2 of the AD conversion chip U65 is grounded, pin 1 of the AD conversion chip U65 is connected to pin 7 and pin 8, and then connected to the analog voltage AVDD and one end of the capacitor C165, the other end of the capacitor C165 is grounded, pin 5 of the AD conversion chip U65 is connected to pin 1 of the sampling chip U8, and pin 6 of the AD conversion chip U65 is connected to pin 1 of the sampling chip U9;

[0084] The sixth electronic scale acquisition circuit 216 includes an AD conversion chip U66, an interface J56, inductors L26 and L36, capacitors C166, C226, C286, C296, C306, C346, C316, and resistors R426 and R416; the interface J56 is used to connect the pressure sensor 201 installed at the bottom of the sixth trash can, and the AD conversion chip U66 is used to convert the analog signal input by the interface J56 into a digital signal; pin 5 of the interface J56 is connected to the power supply 5V, pin 4 of the interface J56 is connected to one end of the inductor L26, and the other end of the inductor L26 is respectively connected to one end of the capacitor C306, one end of the resistor R426, and one end of the capacitor C346. The other end of the capacitor C306 is grounded, the other end of the resistor R426 is respectively connected to one end of the capacitor C296 and one end of the capacitor C286, and one end of the capacitor C286 is also connected to pin 4 of the AD conversion chip U66. Pin 3 is connected to one end of the inductor L36, the other end of the inductor L36 is respectively connected to the other end of the capacitor C346, one end of the resistor R416 and one end of the capacitor C316, the other end of the resistor R416 is respectively connected to the other end of the capacitor C296 and the other end of the capacitor C286, the other end of the capacitor C286 is also connected to pin 3 of the AD conversion chip U66, pin 2 of the interface J56 is grounded, pin 1 of the interface J56 is connected to one end of the capacitor C226, the other end of the capacitor C226 is respectively connected to the other end of the capacitor C316 and ground, pin 2 of the AD conversion chip U66 is grounded, pin 1 of the AD conversion chip U66 is connected to pin 7 and pin 8, and then connected to the analog voltage AVDD and one end of the capacitor C166, the other end of the capacitor C166 is grounded, pin 5 of the AD conversion chip U66 is connected to pin 5 of the sampling chip U8, and pin 6 of the AD conversion chip U66 is connected to pin 5 of the sampling chip U9;

[0085] The seventh electronic scale acquisition circuit 217 includes an AD conversion chip U67, an interface J57, inductors L27 and L37, capacitors C167, C227, C287, C297, C307, C347, C317, and resistors R427 and R417; the interface J57 is used to connect the pressure sensor 201 installed at the bottom of the seventh trash can, and the AD conversion chip U67 is used to convert the analog signal input by the interface J57 into a digital signal; pin 5 of the interface J57 is connected to the power supply 5V, pin 4 of the interface J57 is connected to one end of the inductor L27, and the other end of the inductor L27 is respectively connected to one end of the capacitor C307, one end of the resistor R427 and one end of the capacitor C347, the other end of the capacitor C307 is grounded, the other end of the resistor R427 is respectively connected to one end of the capacitor C297 and one end of the capacitor C287, and one end of the capacitor C287 is also connected to pin 4 of the AD conversion chip U67, and the interface J57 is connected to the power supply 5V. Pin 3 is connected to one end of the inductor L37, the other end of the inductor L37 is respectively connected to the other end of the capacitor C347, one end of the resistor R417 and one end of the capacitor C317, the other end of the resistor R417 is respectively connected to the other end of the capacitor C297 and the other end of the capacitor C287, the other end of the capacitor C287 is also connected to pin 3 of the AD conversion chip U67, pin 2 of the interface J57 is grounded, pin 1 of the interface J57 is connected to one end of the capacitor C227, the other end of the capacitor C227 is respectively connected to the other end of the capacitor C317 and ground, pin 2 of the AD conversion chip U67 is grounded, pin 1 of the AD conversion chip U67 is connected to pin 7 and pin 8, and then connected to the analog voltage AVDD and one end of the capacitor C167, the other end of the capacitor C167 is grounded, pin 5 of the AD conversion chip U67 is connected to pin 2 of the sampling chip U8, and pin 6 of the AD conversion chip U67 is connected to pin 2 of the sampling chip U9;

[0086] The eighth electronic scale acquisition circuit 218 includes an AD conversion chip U68, an interface J58, inductors L28 and L38, capacitors C168, C228, C288, C298, C308, C348, C318, and resistors R428 and R418; the interface J58 is used to connect the pressure sensor 201 installed at the bottom of the eighth trash can, and the AD conversion chip U68 is used to convert the analog signal input by the interface J58 into a digital signal; pin 5 of the interface J58 is connected to the power supply 5V, pin 4 of the interface J58 is connected to one end of the inductor L28, and the other end of the inductor L28 is respectively connected to one end of the capacitor C308, one end of the resistor R428, and one end of the capacitor C348, the other end of the capacitor C308 is grounded, the other end of the resistor R428 is respectively connected to one end of the capacitor C298 and one end of the capacitor C288, and one end of the capacitor C288 is also connected to pin 4 of the AD conversion chip U68, and the interface J58 is connected to the power supply 5V. Pin 3 is connected to one end of the inductor L38, and the other end of the inductor L38 is respectively connected to the other end of the capacitor C348, one end of the resistor R418 and one end of the capacitor C318. The other end of the resistor R418 is respectively connected to the other end of the capacitor C298 and the other end of the capacitor C288. The other end of the capacitor C288 is also connected to pin 3 of the AD conversion chip U68. Pin 2 of the interface J58 is grounded. Pin 1 of the interface J58 is connected to one end of the capacitor C228. The other end of the capacitor C228 is respectively connected to the other end of the capacitor C318 and the ground. Pin 2 of the AD conversion chip U68 is grounded. Pin 1 of the AD conversion chip U68 is connected to pin 7 and pin 8 and then connected to the analog voltage AVDD and one end of the capacitor C168. The other end of the capacitor C168 is grounded. Pin 5 of the AD conversion chip U68 is connected to pin 4 of the sampling chip U8, and pin 6 of the AD conversion chip U68 is connected to pin 4 of the sampling chip U9.

[0087] As an embodiment of the present invention, refer to Figure 6 The multi-channel electric lock unit 22 includes a DA conversion chip U12, sampling chips U13 and U14, and an electric lock circuit; the DA conversion chip U12 is used to transmit the lock control signal sent by the MCU unit 1 to the electric lock circuit to realize the opening and locking of the electric lock 202, the sampling chip U13 is used to transmit the door magnetic state of the electric lock 202 collected by the electric lock circuit to the MCU unit 1, and the sampling chip U14 is used to transmit the lock tongue state of the electric lock 202 collected by the electric lock circuit to the MCU unit 1;

[0088] The electric latch lock circuit includes a first electric latch lock circuit 221, a second electric latch lock circuit 222, a third electric latch lock circuit 223, a fourth electric latch lock circuit 224, a fifth electric latch lock circuit 225, a sixth electric latch lock circuit 226, a seventh electric latch lock circuit 227, and an eighth electric latch lock circuit 228; the first electric latch lock circuit 221 is used to control the opening and locking of the first electric latch lock 202 and collect the door magnetic state and lock tongue state of the first electric latch lock 202; the second electric latch lock circuit 222 is used to control the opening and locking of the second electric latch lock 202 and collect the door magnetic state and lock tongue state of the second electric latch lock 202; the third electric latch lock circuit 223 is used to control the opening and locking of the third electric latch lock 202 and collect the door magnetic state and lock tongue state of the third electric latch lock 202 The fourth electric lock circuit 224 is used to control the opening and locking of the fourth electric lock 202 and collect the door magnetic state and lock tongue state of the fourth electric lock 202; the fifth electric lock circuit 225 is used to control the opening and locking of the fifth electric lock 202 and collect the door magnetic state and lock tongue state of the fifth electric lock 202; the sixth electric lock circuit 226 is used to control the opening and locking of the sixth electric lock 202 and collect the door magnetic state and lock tongue state of the sixth electric lock 202; the seventh electric lock circuit 227 is used to control the opening and locking of the seventh electric lock 202 and collect the door magnetic state and lock tongue state of the seventh electric lock 202; the eighth electric lock circuit 228 is used to control the opening and locking of the eighth electric lock 202 and collect the door magnetic state and lock tongue state of the eighth electric lock 202;

[0089] The DA conversion chip U12, the sampling chips U13 and U14, and the electric lock circuit can be expanded as the number of electric locks 202 increases;

[0090] Pin 13 of the DA conversion chip U12 is grounded, pin 12 of the DA conversion chip U12 is connected to terminal LOCK_RCLK, pin 10 of the DA conversion chip U12 is connected to one end of capacitor C20, the other end of capacitor C20 is grounded, pin 11 of the DA conversion chip U12 is connected to terminal LOCK_CLK, pin 14 of the DA conversion chip U12 is connected to terminal LOCK_DATA, pin 3 of the sampling chip U13 is connected to terminal GATE_MAGENTISM, pin 11 of the sampling chip U13 is connected to terminal A, pin 10 of the sampling chip U13 is connected to terminal B, pin 9 of the sampling chip U13 is connected to terminal C, and pin 6 of the sampling chip U13 is grounded; pin 3 of the sampling chip U14 is connected to terminal LOCK, pin 11 of the sampling chip U13 is connected to terminal A, pin 10 of the sampling chip U13 is connected to terminal B, pin 9 of the sampling chip U13 is connected to terminal C, and pin 6 of the sampling chip U13 is grounded;

[0091] The first electric lock circuit 221 includes an interface J151, optocouplers U171-D and U171-C, a transistor Q201, light-emitting diodes D221, D111, D101, resistors R571, R581, R831, R551, R541, R561, and R531; the interface J151 is used to connect to the first electric lock 202, pin 2 of the interface J151 is used to output a lock control signal, pin 3 of the interface J151 is used to input a door magnetic state, and pin 4 of the interface J151 is used to input a lock tongue state; the optocoupler U171-D is used to convert the door magnetic state into a current signal and output the current signal. The current signal is transmitted to the sampling chip U13, and the optocoupler U171-C is used to convert the lock tongue state into an electrical signal and transmit the current signal to the sampling chip U14; Pin 1 of the interface J151 is connected to the power supply voltage VCC, Pin 5 of the interface J151 is grounded, Pin 2 of the interface J151 is respectively connected to the emitter of the transistor Q201 and one end of the resistor R831, the collector of the transistor Q201 is connected to the power supply voltage VCC, the base of the transistor Q201 is respectively connected to one end of the resistor R571 and one end of the resistor R581, the other end of the resistor R581 is grounded, and the other end of the resistor R831 is connected The positive electrode of the light-emitting diode D221, the negative electrode of the light-emitting diode D221 is grounded, the pin 3 of the interface J151 is connected to the pin 4 of the optocoupler U171-D, the pin 3 of the optocoupler U171-D is connected to one end of the resistor R551, the other end of the resistor R551 is connected to the power supply voltage VCC, the pin 2 of the optocoupler U171-D is grounded, the pin 1 of the optocoupler U171-D is connected to the negative electrode of the light-emitting diode D111, the positive electrode of the light-emitting diode D111 is connected to one end of the resistor R541, the other end of the resistor R541 is connected to the terminal, the pin 4 of the interface J151 is connected to the pin 4 of the optocoupler U171-C, the optocoupler U Pin 3 of 171-C is connected to one end of the resistor R561, the other end of the resistor R561 is connected to the power supply voltage VCC, pin 2 of the optocoupler U171-C is grounded, pin 1 of the optocoupler U171-C is connected to the cathode of the light-emitting diode D101, the anode of the light-emitting diode D101 is connected to one end of the resistor R531, the other end of the resistor R531 is connected to the terminal, the other end of the resistor R571 is connected to pin 15 of the DA conversion chip U12, pin 1 of the optocoupler U171-D is also connected to pin 13 of the sampling chip U13, and pin 1 of the optocoupler U171-C is also connected to pin 13 of the sampling chip U14;

[0092] The second electric lock circuit 222 includes an interface J152, optocouplers U172-D and U172-C, a transistor Q202, light-emitting diodes D222, D112, D102, resistors R572, R582, R832, ​​R552, R542, R562, and R532; the interface J152 is used to connect to the second electric lock 202, pin 2 of the interface J152 is used to output a lock control signal, pin 3 of the interface J152 is used to input a door magnetic state, and pin 4 of the interface J152 is used to input a lock tongue state; the optocoupler U172-D is used to convert the door magnetic state into a current signal and output the current signal. The current signal is transmitted to the sampling chip U13, and the optocoupler U172-C is used to convert the lock tongue state into an electrical signal and transmit the current signal to the sampling chip U14; Pin 1 of the interface J152 is connected to the power supply voltage VCC, Pin 5 of the interface J152 is grounded, Pin 2 of the interface J152 is respectively connected to the emitter of the transistor Q202 and one end of the resistor R832, ​​the collector of the transistor Q202 is connected to the power supply voltage VCC, the base of the transistor Q202 is respectively connected to one end of the resistor R572 and one end of the resistor R582, the other end of the resistor R582 is grounded, and the other end of the resistor R832 is connected The positive electrode of the light-emitting diode D222, the negative electrode of the light-emitting diode D222 is grounded, the pin 3 of the interface J152 is connected to the pin 4 of the optocoupler U172-D, the pin 3 of the optocoupler U172-D is connected to one end of the resistor R552, the other end of the resistor R552 is connected to the power supply voltage VCC, the pin 2 of the optocoupler U172-D is grounded, the pin 1 of the optocoupler U172-D is connected to the negative electrode of the light-emitting diode D112, the positive electrode of the light-emitting diode D112 is connected to one end of the resistor R542, the other end of the resistor R542 is connected to the terminal, the pin 4 of the interface J152 is connected to the pin 4 of the optocoupler U172-C, the optocoupler U Pin 3 of 172-C is connected to one end of resistor R562, the other end of resistor R562 is connected to power supply voltage VCC, pin 2 of optocoupler U172-C is grounded, pin 1 of optocoupler U172-C is connected to the cathode of light-emitting diode D102, the anode of light-emitting diode D102 is connected to one end of resistor R532, the other end of resistor R532 is connected to the terminal, the other end of resistor R572 is connected to pin 1 of DA conversion chip U12, pin 1 of optocoupler U172-D is also connected to pin 14 of sampling chip U13, and pin 1 of optocoupler U172-C is also connected to pin 14 of sampling chip U14;

[0093] The third electric lock circuit 223 includes an interface J153, optocouplers U173-D and U173-C, a transistor Q203, light-emitting diodes D223, D113, D103, resistors R573, R583, R833, R553, R543, R563, and R533; the interface J153 is used to connect to the third electric lock 202, pin 2 of the interface J153 is used to output a lock control signal, pin 3 of the interface J153 is used to input a door magnetic state, and pin 4 of the interface J153 is used to input a lock tongue state; the optocoupler U173-D is used to convert the door magnetic state into a current signal and output the current signal. The current signal is transmitted to the sampling chip U13, and the optocoupler U173-C is used to convert the lock tongue state into an electrical signal and transmit the current signal to the sampling chip U14; Pin 1 of the interface J153 is connected to the power supply voltage VCC, Pin 5 of the interface J153 is grounded, Pin 2 of the interface J153 is respectively connected to the emitter of the transistor Q203 and one end of the resistor R833, the collector of the transistor Q203 is connected to the power supply voltage VCC, the base of the transistor Q203 is respectively connected to one end of the resistor R573 and one end of the resistor R583, the other end of the resistor R583 is grounded, and the other end of the resistor R833 is connected The positive electrode of the light-emitting diode D223 and the negative electrode of the light-emitting diode D223 are grounded, the pin 3 of the interface J153 is connected to the pin 4 of the optocoupler U173-D, the pin 3 of the optocoupler U173-D is connected to one end of the resistor R553, the other end of the resistor R553 is connected to the power supply voltage VCC, the pin 2 of the optocoupler U173-D is grounded, the pin 1 of the optocoupler U173-D is connected to the negative electrode of the light-emitting diode D113, the positive electrode of the light-emitting diode D113 is connected to one end of the resistor R543, the other end of the resistor R543 is connected to the terminal, the pin 4 of the interface J153 is connected to the pin 4 of the optocoupler U173-C, the optocoupler U Pin 3 of 173-C is connected to one end of the resistor R563, the other end of the resistor R563 is connected to the power supply voltage VCC, pin 2 of the optocoupler U173-C is grounded, pin 1 of the optocoupler U173-C is connected to the cathode of the light-emitting diode D103, the anode of the light-emitting diode D103 is connected to one end of the resistor R533, the other end of the resistor R533 is connected to the terminal, the other end of the resistor R573 is connected to pin 2 of the DA conversion chip U12, pin 1 of the optocoupler U173-D is also connected to pin 15 of the sampling chip U13, and pin 1 of the optocoupler U173-C is also connected to pin 15 of the sampling chip U14;

[0094] The fourth electric lock circuit 224 includes an interface J154, optocouplers U174-D and U174-C, a transistor Q204, light-emitting diodes D224, D114, D104, resistors R574, R584, R834, R554, R544, R564, and R534; the interface J154 is used to connect to the fourth electric lock 202, pin 2 of the interface J154 is used to output a lock control signal, pin 3 of the interface J154 is used to input a door magnetic state, and pin 4 of the interface J154 is used to input a lock tongue state; the optocoupler U174-D is used to convert the door magnetic state into a current signal and output the current signal to the output pin 202; The current signal is transmitted to the sampling chip U13, and the optocoupler U174-C is used to convert the lock tongue state into an electrical signal and transmit the current signal to the sampling chip U14; Pin 1 of the interface J154 is connected to the power supply voltage VCC, Pin 5 of the interface J154 is grounded, Pin 2 of the interface J154 is respectively connected to the emitter of the transistor Q204 and one end of the resistor R834, the collector of the transistor Q204 is connected to the power supply voltage VCC, the base of the transistor Q204 is respectively connected to one end of the resistor R574 and one end of the resistor R584, the other end of the resistor R584 is grounded, and the other end of the resistor R834 is connected The positive electrode of the light-emitting diode D224 and the negative electrode of the light-emitting diode D224 are grounded, the pin 3 of the interface J154 is connected to the pin 4 of the optocoupler U174-D, the pin 3 of the optocoupler U174-D is connected to one end of the resistor R554, the other end of the resistor R554 is connected to the power supply voltage VCC, the pin 2 of the optocoupler U174-D is grounded, the pin 1 of the optocoupler U174-D is connected to the negative electrode of the light-emitting diode D114, the positive electrode of the light-emitting diode D114 is connected to one end of the resistor R544, the other end of the resistor R544 is connected to the terminal, the pin 4 of the interface J154 is connected to the pin 4 of the optocoupler U174-C, the optocoupler U Pin 3 of 174-C is connected to one end of resistor R564, the other end of resistor R564 is connected to power supply voltage VCC, pin 2 of optocoupler U174-C is grounded, pin 1 of optocoupler U174-C is connected to the cathode of light-emitting diode D104, the anode of light-emitting diode D104 is connected to one end of resistor R534, the other end of resistor R534 is connected to the terminal, the other end of resistor R574 is connected to pin 3 of DA conversion chip U12, pin 1 of optocoupler U174-D is also connected to pin 12 of sampling chip U13, and pin 1 of optocoupler U174-C is also connected to pin 12 of sampling chip U14;

[0095] The fifth electric lock circuit 225 includes an interface J155, optocouplers U175-D and U175-C, a transistor Q205, light-emitting diodes D225, D115, D105, resistors R575, R585, R835, R555, R545, R565, and R535; the interface J155 is used to connect to the fifth electric lock 202, pin 2 of the interface J155 is used to output a lock control signal, pin 3 of the interface J155 is used to input a door magnetic state, and pin 4 of the interface J155 is used to input a lock tongue state; the optocoupler U175-D is used to convert the door magnetic state into a current signal and The current signal is transmitted to the sampling chip U13, and the optocoupler U175-C is used to convert the lock tongue state into an electrical signal and transmit the current signal to the sampling chip U14; Pin 1 of the interface J155 is connected to the power supply voltage VCC, Pin 5 of the interface J155 is grounded, Pin 2 of the interface J155 is respectively connected to the emitter of the transistor Q205 and one end of the resistor R835, the collector of the transistor Q205 is connected to the power supply voltage VCC, the base of the transistor Q205 is respectively connected to one end of the resistor R575 and one end of the resistor R585, the other end of the resistor R585 is grounded, and the other end of the resistor R835 is connected Connect the positive electrode of the light-emitting diode D225, the negative electrode of the light-emitting diode D225 is grounded, pin 3 of the interface J155 is connected to pin 4 of the optocoupler U175-D, pin 3 of the optocoupler U175-D is connected to one end of the resistor R555, the other end of the resistor R555 is connected to the power supply voltage VCC, pin 2 of the optocoupler U175-D is grounded, pin 1 of the optocoupler U175-D is connected to the negative electrode of the light-emitting diode D115, the positive electrode of the light-emitting diode D115 is connected to one end of the resistor R545, the other end of the resistor R545 is connected to the terminal, pin 4 of the interface J155 is connected to pin 4 of the optocoupler U175-C, the optocoupler Pin 3 of the optocoupler U175-C is connected to one end of the resistor R565, the other end of the resistor R565 is connected to the power supply voltage VCC, pin 2 of the optocoupler U175-C is grounded, pin 1 of the optocoupler U175-C is connected to the cathode of the light-emitting diode D105, the anode of the light-emitting diode D105 is connected to one end of the resistor R535, the other end of the resistor R535 is connected to the terminal, the other end of the resistor R575 is connected to pin 4 of the DA conversion chip U12, pin 1 of the optocoupler U175-D is also connected to pin 1 of the sampling chip U13, and pin 1 of the optocoupler U175-C is also connected to pin 1 of the sampling chip U14;

[0096] The sixth electric lock circuit 226 includes an interface J156, optocouplers U176-D and U176-C, a transistor Q206, light-emitting diodes D226, D116, D106, and resistors R576, R586, R836, R556, R546, R566, and R536. The interface J156 is used to connect to the sixth electric lock 202. Pin 2 of the interface J156 is used to output a lock control signal. Pin 3 of the interface J156 is used to input a door magnetic state. Pin 4 of the interface J156 is used to input a lock tongue state. The optocoupler U176-D is used to convert the door magnetic state into a current signal and The current signal is transmitted to the sampling chip U13, and the optocoupler U176-C is used to convert the lock tongue state into an electrical signal and transmit the current signal to the sampling chip U14; Pin 1 of the interface J156 is connected to the power supply voltage VCC, Pin 5 of the interface J156 is grounded, Pin 2 of the interface J156 is respectively connected to the emitter of the transistor Q206 and one end of the resistor R836, the collector of the transistor Q206 is connected to the power supply voltage VCC, the base of the transistor Q206 is respectively connected to one end of the resistor R576 and one end of the resistor R586, the other end of the resistor R586 is grounded, and the other end of the resistor R836 is connected Connect the positive electrode of the light-emitting diode D226, the negative electrode of the light-emitting diode D226 is grounded, pin 3 of the interface J156 is connected to pin 4 of the optocoupler U176-D, pin 3 of the optocoupler U176-D is connected to one end of the resistor R556, the other end of the resistor R556 is connected to the power supply voltage VCC, pin 2 of the optocoupler U176-D is grounded, pin 1 of the optocoupler U176-D is connected to the negative electrode of the light-emitting diode D116, the positive electrode of the light-emitting diode D116 is connected to one end of the resistor R546, the other end of the resistor R546 is connected to the terminal, pin 4 of the interface J156 is connected to pin 4 of the optocoupler U176-C, the optocoupler Pin 3 of the optocoupler U176-C is connected to one end of the resistor R566, the other end of the resistor R566 is connected to the power supply voltage VCC, pin 2 of the optocoupler U176-C is grounded, pin 1 of the optocoupler U176-C is connected to the cathode of the light-emitting diode D106, the anode of the light-emitting diode D106 is connected to one end of the resistor R536, the other end of the resistor R536 is connected to the terminal, the other end of the resistor R576 is connected to pin 5 of the DA conversion chip U12, pin 1 of the optocoupler U176-D is also connected to pin 5 of the sampling chip U13, and pin 1 of the optocoupler U176-C is also connected to pin 5 of the sampling chip U14;

[0097] The seventh electric lock circuit 227 includes an interface J157, optocouplers U177-D and U177-C, a transistor Q207, light-emitting diodes D227, D117, D107, resistors R577, R587, R837, R557, R547, R567, and R537; the interface J157 is used to connect to the seventh electric lock 202, pin 2 of the interface J157 is used to output a lock control signal, pin 3 of the interface J157 is used to input a door magnetic state, and pin 4 of the interface J157 is used to input a lock tongue state; the optocoupler U177-D is used to convert the door magnetic state into a current signal and The current signal is transmitted to the sampling chip U13, and the optocoupler U177-C is used to convert the lock tongue state into an electrical signal and transmit the current signal to the sampling chip U14; Pin 1 of the interface J157 is connected to the power supply voltage VCC, Pin 5 of the interface J157 is grounded, Pin 2 of the interface J157 is respectively connected to the emitter of the transistor Q207 and one end of the resistor R837, the collector of the transistor Q207 is connected to the power supply voltage VCC, the base of the transistor Q207 is respectively connected to one end of the resistor R577 and one end of the resistor R587, the other end of the resistor R587 is grounded, and the other end of the resistor R837 is connected Connect the positive electrode of the light-emitting diode D227, the negative electrode of the light-emitting diode D227 is grounded, pin 3 of the interface J157 is connected to pin 4 of the optocoupler U177-D, pin 3 of the optocoupler U177-D is connected to one end of the resistor R557, the other end of the resistor R557 is connected to the power supply voltage VCC, pin 2 of the optocoupler U177-D is grounded, pin 1 of the optocoupler U177-D is connected to the negative electrode of the light-emitting diode D117, the positive electrode of the light-emitting diode D117 is connected to one end of the resistor R547, the other end of the resistor R547 is connected to the terminal, pin 4 of the interface J157 is connected to pin 4 of the optocoupler U177-C, the optocoupler Pin 3 of the optocoupler U177-C is connected to one end of the resistor R567, the other end of the resistor R567 is connected to the power supply voltage VCC, pin 2 of the optocoupler U177-C is grounded, pin 1 of the optocoupler U177-C is connected to the cathode of the light-emitting diode D107, the anode of the light-emitting diode D107 is connected to one end of the resistor R537, the other end of the resistor R537 is connected to the terminal, the other end of the resistor R577 is connected to pin 6 of the DA conversion chip U12, pin 1 of the optocoupler U177-D is also connected to pin 2 of the sampling chip U13, and pin 1 of the optocoupler U177-C is also connected to pin 2 of the sampling chip U14;

[0098] The eighth electric lock circuit 228 includes an interface J158, optocouplers U178-D and U178-C, a transistor Q208, light-emitting diodes D228, D118, D108, resistors R578, R588, R838, R558, R548, R568, and R538; the interface J158 is used to connect to the eighth electric lock 202, pin 2 of the interface J158 is used to output a lock control signal, pin 3 of the interface J158 is used to input a door magnetic state, and pin 4 of the interface J158 is used to input a lock tongue state; the optocoupler U178-D is used to convert the door magnetic state into a current signal and The current signal is transmitted to the sampling chip U13, and the optocoupler U178-C is used to convert the lock tongue state into an electrical signal and transmit the current signal to the sampling chip U14; Pin 1 of the interface J158 is connected to the power supply voltage VCC, Pin 5 of the interface J158 is grounded, Pin 2 of the interface J158 is respectively connected to the emitter of the transistor Q208 and one end of the resistor R838, the collector of the transistor Q208 is connected to the power supply voltage VCC, the base of the transistor Q208 is respectively connected to one end of the resistor R578 and one end of the resistor R588, the other end of the resistor R588 is grounded, and the other end of the resistor R838 is connected Connect the positive electrode of the light-emitting diode D228, the negative electrode of the light-emitting diode D228 is grounded, pin 3 of the interface J158 is connected to pin 4 of the optocoupler U178-D, pin 3 of the optocoupler U178-D is connected to one end of the resistor R558, the other end of the resistor R558 is connected to the power supply voltage VCC, pin 2 of the optocoupler U178-D is grounded, pin 1 of the optocoupler U178-D is connected to the negative electrode of the light-emitting diode D118, the positive electrode of the light-emitting diode D118 is connected to one end of the resistor R548, the other end of the resistor R548 is connected to the terminal, pin 4 of the interface J158 is connected to pin 4 of the optocoupler U178-C, the optocoupler Pin 3 of the optocoupler U178-C is connected to one end of the resistor R568, the other end of the resistor R568 is connected to the power supply voltage VCC, pin 2 of the optocoupler U178-C is grounded, pin 1 of the optocoupler U178-C is connected to the cathode of the light-emitting diode D108, the anode of the light-emitting diode D108 is connected to one end of the resistor R538, the other end of the resistor R538 is connected to the terminal, the other end of the resistor R578 is connected to pin 7 of the DA conversion chip U12, pin 1 of the optocoupler U178-D is also connected to pin 4 of the sampling chip U13, and pin 1 of the optocoupler U178-C is also connected to pin 4 of the sampling chip U14.

[0099] As an implementation method of this embodiment, refer to Figure 8The current monitoring unit 4 includes a current detection chip U11, a voltage regulator diode D7, a polarity capacitor C68, capacitors C66, C67, C69, C70, and resistors R82, R62, R63, R67, and R64; pin 2 of the current detection chip U11 is grounded, pin 5 of the current detection chip U11 is respectively connected to the terminal and one end of the capacitor C67, and the other end of the capacitor C67 is grounded, pin 1 of the current detection chip U11 is respectively connected to one end of the resistor R67 and one end of the capacitor C70, and the other end of the resistor R67 and the other end of the capacitor C70 are respectively grounded, and one end of the capacitor C70 is also connected to one end of the resistor R64, and the other end of the resistor R64 is respectively connected to the negative electrode of the voltage regulator diode D7 and the analog-to-digital converter of the microprocessor U3. Converter, pin 3 of the current detection chip U11 is connected to one end of the resistor R62, the other end of the resistor R62 is respectively connected to one end of the resistor R82 and one end of the resistor R61, the other end of the resistor R82 is grounded, one end of the resistor R82 is also connected to the positive electrode of the polarity capacitor C68, the negative electrode of the polarity capacitor C68 is grounded, the positive electrode of the polarity capacitor C68 is also respectively connected to one end of the capacitor C69 and the power supply voltage VCC, the other end of the capacitor C69 is grounded, pin 4 of the current detection chip U11 is connected to one end of the resistor R63, the other end of the resistor R63 is respectively connected to the other end of the resistor R61 and one end of the capacitor C66, one end of the capacitor C66 is also connected to the voltage terminal MOS_VCC of the motor 203, and the other end of the capacitor C66 is grounded.

[0100] As an implementation method of this embodiment, refer to Figure 3The forward and reverse drive unit 23 includes control chips U25 and U26, and a forward and reverse drive circuit 231; the forward and reverse drive circuit 231 includes an interface J22, MOS tubes Q42, Q44, Q39, Q41, transistors Q43, Q45, Q46, Q40, Q47, Q48, light-emitting diodes D6, D20, capacitor C71, resistors R50, R52, R48, R60, R73, R68, R49, R75, R74, R51, R65, R66, R43, R44, R47, R59, R79, R45, R76, R46, R80, R81; the control chip U25 is used to receive and transmit the forward control signal; the control chip U26 is used to receive and transmit the reverse control signal Number; Pin 3 of the control chip U25 is connected to terminal FWD, pins 10, 11, and 9 of the control chip U25 are connected to terminal A, terminal B, and terminal C respectively, pin 6 of the control chip U25 is grounded, and pins 13, 14, 15, 12, 1, 5, 2, and 4 of the control chip U25 are used to output forward control signals to each motor 203 respectively; pin 3 of the control chip U26 is connected to terminal REV, pins 10, 11, and 9 of the control chip U26 are connected to terminal A, terminal B, and terminal C respectively, pin 6 of the control chip U26 is grounded, and pins 13, 14, 15, 12, 1, 5, 2, and 4 of the control chip U26 are used to output forward control signals to each motor 203 respectively. And pin 4 is used to output a reverse control signal to the motor 203; the interface J22 is used to connect to the motor 203 to output the forward control signal and the reverse control signal to the motor 203; pin 1 of the interface J22 is connected to the positive electrode of the motor 203, and pin 2 of the interface J22 is connected to the negative electrode of the motor 203. Pin 1 of the interface J22 is also connected to the D electrode of the MOS tube Q39 and one end of the capacitor C71 respectively. Pin 2 of the interface J22 is also connected to the D electrode of the MOS tube Q41 and the other end of the capacitor C71 respectively. One end of the capacitor C71 is also connected to the positive electrode of the light-emitting diode D20. The positive electrode of the light-emitting diode D20 is also connected to the negative electrode of the light-emitting diode D6 and the D electrode of the MOS tube Q42 respectively. The other end of the capacitor C71 is also connected to the resistor R66 One end of the resistor R66 is connected to the cathode of the light-emitting diode D20. One end of the resistor R66 is also connected to one end of the resistor R65 and the D electrode of the MOS tube Q44. The other end of the resistor R65 is connected to the anode of the light-emitting diode D6. The S electrode of the MOS tube Q44 is connected to one end of the resistor R50 and then to one end of the capacitor C66. The other end of the resistor R50 is connected to one end of the resistor R52 and the G electrode of the MOS tube Q44. The other end of the resistor R52 is connected to the collector of the transistor Q43. The emitter of the transistor Q43 is grounded. The base of the transistor Q43 is connected to one end of the resistor R48 and one end of the resistor R60. The other end of the resistor R48 is grounded. The other end of the resistor R60 is connected to pin 13 of the control chip U25.The other end of the resistor R60 is also connected to one end of the resistor R75, the other end of the resistor R75 is respectively connected to one end of the resistor R74 and the base of the transistor Q46, the other end of the resistor R74 is grounded, the emitter of the transistor Q46 is grounded, the collector of the transistor Q46 is connected to one end of the resistor R68, the other end of the resistor R68 is respectively connected to one end of the resistor R73 and the base of the transistor Q45, the other end of the resistor R73 is connected to the emitter of the transistor Q45 and then connected to the motor 203. The voltage terminal MOS_VCC, the collector of the transistor Q45 is connected to one end of the resistor R49, the other end of the resistor R49 is respectively connected to the G pole of the MOS transistor Q39 and one end of the resistor R51, the other end of the resistor R51 is grounded, the S pole of the MOS transistor Q39 is grounded, the S pole of the MOS transistor Q42 is also connected to one end of the resistor R43, the other end of the resistor R43 is respectively connected to the G pole of the MOS transistor Q42 and one end of the resistor R44, the other end of the resistor R44 is connected to the G pole of the transistor Q40 The collector, emitter of transistor Q40 is grounded, G pole of transistor Q40 is connected to one end of resistor R47 and one end of resistor R59 respectively, the other end of resistor R47 is grounded, the other end of resistor R59 is connected to one end of resistor R81 and pin 13 of control chip U26 respectively, the other end of resistor R81 is connected to the base of transistor Q48 and one end of resistor R80 respectively, the other end of resistor R80 is grounded, the emitter of transistor Q48 is grounded, the collector of transistor Q48 One end of resistor R76 is connected, the other end of resistor R76 is respectively connected to one end of resistor R79 and the base of transistor Q47, the other end of resistor R79 is connected to the emitter of transistor Q47 and then to the voltage terminal MOS_VCC of motor 203, the collector of transistor Q47 is connected to one end of resistor R45, the other end of resistor R45 is respectively connected to the G terminal of MOS transistor Q41 and one end of resistor R46, the other end of resistor R46 is grounded, and the S terminal of MOS transistor Q41 is grounded;

[0101] The circuit monitoring unit and the forward and reverse driving circuit 231 can be expanded according to the number of motors 203; the control chips U25 and U26, the circuit monitoring unit and the forward and reverse driving circuit 231 can be expanded according to the increase in the number of motors 203.

[0102] As an embodiment of the present invention, refer to Figure 9The multi-way door opening feedback unit 24 includes a control chip U31 and a door opening feedback circuit; the control chip U31 is used to transmit the door opening full monitoring signal detected by the door opening feedback circuit to the MCU unit 1; the door opening feedback circuit includes a first door opening feedback circuit 241, a second door opening feedback circuit 242, a third door opening feedback circuit 243, a fourth door opening feedback circuit 244, a fifth door opening feedback circuit 245, a sixth door opening feedback circuit 246, a seventh door opening feedback circuit 247, and an eighth door opening feedback circuit 248; the first door opening feedback circuit 241 is used to detect the door opening full monitoring signal of the first automatic door, and the second door opening feedback circuit Circuit 242 is used to detect the door-opening fully monitoring signal of the second automatic door, the third door-opening feedback circuit 243 is used to detect the door-opening fully monitoring signal of the third automatic door, the fourth door-opening feedback circuit 244 is used to detect the door-opening fully monitoring signal of the fourth automatic door, the fifth door-opening feedback circuit 245 is used to detect the door-opening fully monitoring signal of the fifth automatic door, the sixth door-opening feedback circuit 246 is used to detect the door-opening fully monitoring signal of the sixth automatic door, the seventh door-opening feedback circuit 247 is used to detect the door-opening fully monitoring signal of the seventh automatic door, and the eighth door-opening feedback circuit 248 is used to detect the door-opening fully monitoring signal of the eighth automatic door;

[0103] The control chip U31 and the door opening feedback circuit can be expanded as the number of automatic doors increases;

[0104] Pin 3 of the control chip U31 is connected to terminal OPEN, pins 11, 10, and 9 of the control chip U31 are connected to terminal A, terminal B, and terminal C respectively, and pin 6 of the control chip U31 is grounded;

[0105] The first door opening feedback circuit 241 includes an optocoupler U331-D, a light-emitting diode D401, and resistors R1261 and R1251; the optocoupler U331-D is used to convert the optical signal transmitted by the first door opening limit sensor 204 into a current signal and transmit the current signal to the control chip U31; pin 4 of the optocoupler U331-D is connected to the signal output terminal IN_NPN_OPEN-1 of the first door opening limit sensor 204, pin 3 of the optocoupler U331-D is connected to one end of the resistor R1251, the other end of the resistor R1251 is connected to the power supply voltage VCC, pin 2 of the optocoupler U331-D is grounded, pin 1 of the optocoupler U331-D is connected to the cathode of the light-emitting diode D401, the anode of the light-emitting diode D401 is connected to one end of the resistor R1261, the other end of the resistor R1261 is grounded, and pin 1 of the optocoupler U331-D is also connected to pin 13 of the control chip U31;

[0106] The second door opening feedback circuit 242 includes an optocoupler U332-D, a light-emitting diode D402, and resistors R1262 and R1252; the optocoupler U332-D is used to convert the optical signal transmitted by the second door opening limit sensor 204 into a current signal and transmit the current signal to the control chip U31; pin 4 of the optocoupler U332-D is connected to the signal output terminal IN_NPN_OPEN-2 of the second door opening limit sensor 204, pin 3 of the optocoupler U332-D is connected to one end of the resistor R1252, the other end of the resistor R1252 is connected to the power supply voltage VCC, pin 2 of the optocoupler U332-D is grounded, pin 1 of the optocoupler U332-D is connected to the cathode of the light-emitting diode D402, the anode of the light-emitting diode D402 is connected to one end of the resistor R1262, the other end of the resistor R1262 is grounded, and pin 1 of the optocoupler U332-D is also connected to pin 14 of the control chip U31;

[0107] The third door opening feedback circuit 243 includes an optocoupler U333-D, a light-emitting diode D403, and resistors R1263 and R1253; the optocoupler U333-D is used to convert the optical signal transmitted by the third door opening limit sensor 204 into a current signal and transmit the current signal to the control chip U31; pin 4 of the optocoupler U333-D is connected to the signal output terminal IN_NPN_OPEN-3 of the third door opening limit sensor 204, pin 3 of the optocoupler U333-D is connected to one end of the resistor R1253, the other end of the resistor R1253 is connected to the power supply voltage VCC, pin 2 of the optocoupler U333-D is grounded, pin 1 of the optocoupler U333-D is connected to the cathode of the light-emitting diode D403, the anode of the light-emitting diode D403 is connected to one end of the resistor R1263, the other end of the resistor R1263 is grounded, and pin 1 of the optocoupler U333-D is also connected to pin 15 of the control chip U31;

[0108] The fourth door opening feedback circuit 244 includes an optocoupler U334-D, a light-emitting diode D404, and resistors R1264 and R1254; the optocoupler U334-D is used to convert the optical signal transmitted by the fourth door opening limit sensor 204 into a current signal and transmit the current signal to the control chip U31; pin 4 of the optocoupler U334-D is connected to the signal output terminal IN_NPN_OPEN-4 of the fourth door opening limit sensor 204, pin 3 of the optocoupler U334-D is connected to one end of the resistor R1254, the other end of the resistor R1254 is connected to the power supply voltage VCC, pin 2 of the optocoupler U334-D is grounded, pin 1 of the optocoupler U334-D is connected to the cathode of the light-emitting diode D404, the anode of the light-emitting diode D404 is connected to one end of the resistor R1264, the other end of the resistor R1264 is grounded, and pin 1 of the optocoupler U334-D is also connected to pin 12 of the control chip U31;

[0109] The fifth door opening feedback circuit 245 includes an optocoupler U335-D, a light-emitting diode D405, and resistors R1265 and R1255; the optocoupler U335-D is used to convert the optical signal transmitted by the fifth door opening limit sensor 204 into a current signal and transmit the current signal to the control chip U31; pin 4 of the optocoupler U335-D is connected to the signal output terminal IN_NPN_OPEN-5 of the fifth door opening limit sensor 204, pin 3 of the optocoupler U335-D is connected to one end of the resistor R1255, the other end of the resistor R1255 is connected to the power supply voltage VCC, pin 2 of the optocoupler U335-D is grounded, pin 1 of the optocoupler U335-D is connected to the cathode of the light-emitting diode D405, the anode of the light-emitting diode D405 is connected to one end of the resistor R1265, the other end of the resistor R1265 is grounded, and pin 1 of the optocoupler U335-D is also connected to pin 1 of the control chip U31;

[0110] The sixth door opening feedback circuit 246 includes an optocoupler U336-D, a light-emitting diode D406, and resistors R1266 and R1256. The optocoupler U336-D is used to convert the optical signal transmitted by the sixth door opening limit sensor 204 into a current signal and transmit the current signal to the control chip U31. Pin 4 of the optocoupler U336-D is connected to the signal output terminal IN_NPN_OPEN-6 of the sixth door opening limit sensor 204, pin 3 of the optocoupler U336-D is connected to one end of the resistor R1256, the other end of the resistor R1256 is connected to the power supply voltage VCC, pin 2 of the optocoupler U336-D is grounded, pin 1 of the optocoupler U336-D is connected to the cathode of the light-emitting diode D406, the anode of the light-emitting diode D406 is connected to one end of the resistor R1266, the other end of the resistor R1266 is grounded, and pin 1 of the optocoupler U336-D is also connected to pin 5 of the control chip U31.

[0111] The seventh door opening feedback circuit 247 includes an optocoupler U337-D, a light-emitting diode D407, and resistors R1267 and R1257; the optocoupler U337-D is used to convert the optical signal transmitted by the seventh door opening limit sensor 204 into a current signal and transmit the current signal to the control chip U31; pin 4 of the optocoupler U337-D is connected to the signal output terminal IN_NPN_OPEN-7 of the seventh door opening limit sensor 204, pin 3 of the optocoupler U337-D is connected to one end of the resistor R1257, the other end of the resistor R1257 is connected to the power supply voltage VCC, pin 2 of the optocoupler U337-D is grounded, pin 1 of the optocoupler U337-D is connected to the cathode of the light-emitting diode D407, the anode of the light-emitting diode D407 is connected to one end of the resistor R1267, the other end of the resistor R1267 is grounded, and pin 1 of the optocoupler U337-D is also connected to pin 2 of the control chip U31;

[0112] The eighth door opening feedback circuit 248 includes an optocoupler U338-D, a light-emitting diode D408, and resistors R1268 and R1258; the optocoupler U338-D is used to convert the optical signal transmitted by the eighth door opening limit sensor 204 into a current signal and transmit the current signal to the control chip U31; pin 4 of the optocoupler U338-D is connected to the signal output terminal IN_NPN_OPEN-8 of the eighth door opening limit sensor 204, pin 3 of the optocoupler U338-D is connected to one end of the resistor R1258, the other end of the resistor R1258 is connected to the power supply voltage VCC, pin 2 of the optocoupler U338-D is grounded, pin 1 of the optocoupler U338-D is connected to the cathode of the light-emitting diode D408, the anode of the light-emitting diode D408 is connected to one end of the resistor R1268, the other end of the resistor R1268 is grounded, and pin 1 of the optocoupler U338-D is also connected to pin 4 of the control chip U31.

[0113] As an embodiment of the present invention, refer to Figure 11 The multi-channel door closing feedback unit 25 includes a control chip U32 and a door closing feedback circuit; the control chip U32 is used to transmit the door closing position monitoring signal detected by the door closing feedback circuit to the MCU unit 1; the door closing feedback circuit includes a first door closing feedback circuit 251, a second door closing feedback circuit 252, a third door closing feedback circuit 253, a fourth door closing feedback circuit 254, a fifth door closing feedback circuit 255, a sixth door closing feedback circuit 256, a seventh door closing feedback circuit 257, and an eighth door closing feedback circuit 258; the first door closing feedback circuit 251 is used to detect the door closing position monitoring signal of the first automatic door, and the second door closing feedback circuit Circuit 252 is used to detect the door-closing position monitoring signal of the second automatic door, the third door-closing feedback circuit 253 is used to detect the door-closing position monitoring signal of the third automatic door, the fourth door-closing feedback circuit 254 is used to detect the door-closing position monitoring signal of the fourth automatic door, the fifth door-closing feedback circuit 255 is used to detect the door-closing position monitoring signal of the fifth automatic door, the sixth door-closing feedback circuit 256 is used to detect the door-closing position monitoring signal of the sixth automatic door, the seventh door-closing feedback circuit 257 is used to detect the door-closing position monitoring signal of the seventh automatic door, and the eighth door-closing feedback circuit 258 is used to detect the door-closing position monitoring signal of the eighth automatic door;

[0114] The control chip U32 and the door closing feedback circuit can be expanded as the number of automatic doors increases;

[0115] Pin 3 of the control chip U32 is connected to terminal SHUT, pins 11, 10, and 9 of the control chip U32 are connected to terminal A, terminal B, and terminal C respectively, and pin 6 of the control chip U32 is grounded;

[0116] The first door closing feedback circuit 251 includes an optocoupler U331-C, a light-emitting diode D41, and resistors R1281 and R1271. The optocoupler U331-C is used to convert the optical signal transmitted by the first door closing limit sensor 205 into a current signal and transmit the current signal to the control chip U32. Pin 4 of the optocoupler U331-C is connected to the signal output terminal IN_NPN_SHUT-1 of the first door closing limit sensor 205. Pin 3 of the optocoupler U331-C is connected to one end of the resistor R1271, the other end of the resistor R1271 is connected to the power supply voltage VCC, pin 2 of the optocoupler U331-C is grounded, pin 1 of the optocoupler U331-C is connected to the cathode of the light-emitting diode D41, the anode of the light-emitting diode D41 is connected to one end of the resistor R1281, the other end of the resistor R1281 is grounded, and pin 1 of the optocoupler U331-C is also connected to pin 13 of the control chip U32.

[0117] The second door closing feedback circuit 252 includes an optocoupler U332-C, a light-emitting diode D42, and resistors R1282 and R1272. The optocoupler U332-C is used to convert the optical signal transmitted by the second door closing limit sensor 205 into a current signal and transmit the current signal to the control chip U32. Pin 4 of the optocoupler U332-C is connected to the signal output terminal IN_NPN_SHUT-2 of the second door closing limit sensor 205. Pin 3 of the optocoupler U332-C is connected to one end of the resistor R1272, the other end of the resistor R1272 is connected to the power supply voltage VCC, pin 2 of the optocoupler U332-C is grounded, pin 1 of the optocoupler U332-C is connected to the cathode of the light-emitting diode D42, the anode of the light-emitting diode D42 is connected to one end of the resistor R1282, the other end of the resistor R1282 is grounded, and pin 1 of the optocoupler U332-C is also connected to pin 14 of the control chip U32.

[0118] The third door closing feedback circuit 253 includes an optocoupler U333-C, a light-emitting diode D43, and resistors R1283 and R1273. The optocoupler U333-C is used to convert the optical signal transmitted by the third door closing limit sensor 205 into a current signal and transmit the current signal to the control chip U32. Pin 4 of the optocoupler U333-C is connected to the signal output terminal IN_NPN_SHUT-3 of the third door closing limit sensor 205, pin 3 of the optocoupler U333-C is connected to one end of the resistor R1273, the other end of the resistor R1273 is connected to the power supply voltage VCC, pin 2 of the optocoupler U333-C is grounded, pin 1 of the optocoupler U333-C is connected to the cathode of the light-emitting diode D43, the anode of the light-emitting diode D43 is connected to one end of the resistor R1283, the other end of the resistor R1283 is grounded, and pin 1 of the optocoupler U333-C is also connected to pin 15 of the control chip U32.

[0119] The fourth door closing feedback circuit 254 includes an optocoupler U334-C, a light-emitting diode D44, and resistors R1284 and R1274. The optocoupler U334-C is used to convert the optical signal transmitted by the fourth door closing limit sensor 205 into a current signal and transmit the current signal to the control chip U32. Pin 4 of the optocoupler U334-C is connected to the signal output terminal IN_NPN_SHUT-4 of the fourth door closing limit sensor 205. Pin 3 of the optocoupler U334-C is connected to one end of the resistor R1274, the other end of the resistor R1274 is connected to the power supply voltage VCC, pin 2 of the optocoupler U334-C is grounded, pin 1 of the optocoupler U334-C is connected to the cathode of the light-emitting diode D44, the anode of the light-emitting diode D44 is connected to one end of the resistor R1284, the other end of the resistor R1284 is grounded, and pin 1 of the optocoupler U334-C is also connected to pin 12 of the control chip U32.

[0120] The fifth door closing feedback circuit 255 includes an optocoupler U335-C, a light-emitting diode D45, and resistors R1285 and R1275. The optocoupler U335-C is used to convert the optical signal transmitted by the fifth door closing limit sensor 205 into a current signal and transmit the current signal to the control chip U32. Pin 4 of the optocoupler U335-C is connected to the signal output terminal IN_NPN_SHUT-5 of the fifth door closing limit sensor 205. Pin 3 of the optocoupler U335-C is connected to one end of the resistor R1275, the other end of the resistor R1275 is connected to the power supply voltage VCC, pin 2 of the optocoupler U335-C is grounded, pin 1 of the optocoupler U335-C is connected to the cathode of the light-emitting diode D45, the anode of the light-emitting diode D45 is connected to one end of the resistor R1285, the other end of the resistor R1285 is grounded, and pin 1 of the optocoupler U335-C is also connected to pin 1 of the control chip U32.

[0121] The sixth door closing feedback circuit 256 includes an optocoupler U336-C, a light-emitting diode D46, and resistors R1286 and R1276. The optocoupler U336-C is used to convert the optical signal transmitted by the sixth door closing limit sensor 205 into a current signal and transmit the current signal to the control chip U32. Pin 4 of the optocoupler U336-C is connected to the signal output terminal IN_NPN_SHUT-6 of the sixth door closing limit sensor 205. Pin 3 of the optocoupler U336-C is connected to one end of the resistor R1276, the other end of the resistor R1276 is connected to the power supply voltage VCC, pin 2 of the optocoupler U336-C is grounded, pin 1 of the optocoupler U336-C is connected to the cathode of the light-emitting diode D46, the anode of the light-emitting diode D46 is connected to one end of the resistor R1286, the other end of the resistor R1286 is grounded, and pin 1 of the optocoupler U336-C is also connected to pin 5 of the control chip U32.

[0122] The seventh door closing feedback circuit 257 includes an optocoupler U337-C, a light-emitting diode D47, and resistors R1287 and R1277. The optocoupler U337-C is used to convert the optical signal transmitted by the seventh door closing limit sensor 205 into a current signal and transmit the current signal to the control chip U32. Pin 4 of the optocoupler U337-C is connected to the signal output terminal IN_NPN_SHUT-7 of the seventh door closing limit sensor 205. Pin 3 of the optocoupler U337-C is connected to one end of the resistor R1277, the other end of the resistor R1277 is connected to the power supply voltage VCC, pin 2 of the optocoupler U337-C is grounded, pin 1 of the optocoupler U337-C is connected to the cathode of the light-emitting diode D47, the anode of the light-emitting diode D47 is connected to one end of the resistor R1287, the other end of the resistor R1287 is grounded, and pin 1 of the optocoupler U337-C is also connected to pin 2 of the control chip U32.

[0123] The eighth door closing feedback circuit 258 includes an optocoupler U338-C, a light-emitting diode D48, and resistors R1288 and R1278; the optocoupler U338-C is used to convert the optical signal transmitted by the eighth door closing limit sensor 205 into a current signal and transmit the current signal to the control chip U32; pin 4 of the optocoupler U338-C is connected to the signal output terminal IN_NPN_SHUT-8 of the eighth door closing limit sensor 205, pin 3 of the optocoupler U338-C is connected to one end of the resistor R1278, the other end of the resistor R1278 is connected to the power supply voltage VCC, pin 2 of the optocoupler U338-C is grounded, pin 1 of the optocoupler U338-C is connected to the cathode of the light-emitting diode D48, the anode of the light-emitting diode D48 is connected to one end of the resistor R1288, the other end of the resistor R1288 is grounded, and pin 1 of the optocoupler U338-C is also connected to pin 4 of the control chip U32.

[0124] As an embodiment of the present invention, refer to Figure 13, the multi-channel anti-hand pinching feedback unit 26 includes a control chip U22 and a hand pinching feedback circuit; the control chip U22 is used to transmit the door object monitoring signal detected by the hand pinching feedback circuit to the MCU unit 1; the hand pinching feedback circuit includes a first hand pinching feedback circuit 261, a second hand pinching feedback circuit 262262, a third hand pinching feedback circuit 263, a fourth hand pinching feedback circuit 264, a fifth hand pinching feedback circuit 265, a sixth hand pinching feedback circuit 266, a seventh hand pinching feedback circuit 267, and an eighth hand pinching feedback circuit 268; the first hand pinching feedback circuit 261 is used to detect the door object monitoring signal of the first automatic door, the second hand pinching feedback circuit 262 is used to detect the door object monitoring signal of the first automatic door, and the second hand pinching feedback circuit 263 is used to detect the door object monitoring signal of the first automatic door. The hand feedback circuits 262 and 262 are used to detect the doorway object monitoring signal of the second automatic door. The third hand clamping feedback circuit 263 is used to detect the doorway object monitoring signal of the third automatic door. The fourth hand clamping feedback circuit 264 is used to detect the doorway object monitoring signal of the fourth automatic door. The fifth hand clamping feedback circuit 265 is used to detect the doorway object monitoring signal of the fifth automatic door. The sixth hand clamping feedback circuit 266 is used to detect the doorway object monitoring signal of the sixth automatic door. The seventh hand clamping feedback circuit 267 is used to detect the doorway object monitoring signal of the seventh automatic door. The eighth hand clamping feedback circuit 268 is used to detect the doorway object monitoring signal of the eighth automatic door.

[0125] The control chip U22 and the gripper feedback circuit can be expanded as the number of automatic doors increases;

[0126] Pin 3 of the control chip U22 is connected to terminal RASTER, pins 11, 10, and 9 of the control chip U22 are connected to terminal A, terminal B, and terminal C respectively, and pin 6 of the control chip U22 is grounded;

[0127] The first gripper feedback circuit 261 includes an optocoupler U491-D, a light-emitting diode D571, and resistors R1561 and R1551. The optocoupler U491-D is used to convert the optical signal transmitted by the first drop port grating 206 into a current signal and transmit the current signal to the control chip U22. Pin 4 of the optocoupler U491-D is connected to the signal output terminal IN_NPN_RASTER-1 of the first drop port grating 206, pin 3 of the optocoupler U491-D is connected to one end of the resistor R1551, the other end of the resistor R1551 is connected to the power supply voltage VCC, pin 2 of the optocoupler U491-D is grounded, pin 1 of the optocoupler U491-D is connected to the cathode of the light-emitting diode D571, the anode of the light-emitting diode D571 is connected to one end of the resistor R1561, the other end of the resistor R1561 is grounded, and pin 1 of the optocoupler U491-D is also connected to pin 13 of the control chip U22.

[0128] The second gripper feedback circuit 262262 includes an optocoupler U492-D, a light-emitting diode D572, and resistors R1562 and R1552; the optocoupler U492-D is used to convert the optical signal transmitted by the second drop port grating 206 into a current signal and transmit the current signal to the control chip U22; pin 4 of the optocoupler U492-D is connected to the signal output terminal IN_NPN_RASTER-2 of the second drop port grating 206, pin 3 of the optocoupler U492-D is connected to one end of the resistor R1552, the other end of the resistor R1552 is connected to the power supply voltage VCC, pin 2 of the optocoupler U492-D is grounded, pin 1 of the optocoupler U492-D is connected to the cathode of the light-emitting diode D572, the anode of the light-emitting diode D572 is connected to one end of the resistor R1562, the other end of the resistor R1562 is grounded, and pin 1 of the optocoupler U492-D is also connected to pin 14 of the control chip U22;

[0129] The third gripper feedback circuit 263 includes an optocoupler U493-D, a light-emitting diode D573, and resistors R1563 and R1553. The optocoupler U493-D is used to convert the optical signal transmitted by the third drop-in port grating 206 into a current signal and transmit the current signal to the control chip U22. Pin 4 of the optocoupler U493-D is connected to the signal output terminal IN_NPN_RASTER-3 of the third drop-in port grating 206, pin 3 of the optocoupler U493-D is connected to one end of the resistor R1553, the other end of the resistor R1553 is connected to the power supply voltage VCC, pin 2 of the optocoupler U493-D is grounded, pin 1 of the optocoupler U493-D is connected to the cathode of the light-emitting diode D573, the anode of the light-emitting diode D573 is connected to one end of the resistor R1563, the other end of the resistor R1563 is grounded, and pin 1 of the optocoupler U493-D is also connected to pin 15 of the control chip U22.

[0130] The fourth gripper feedback circuit 264 includes an optocoupler U494-D, a light-emitting diode D574, and resistors R1564 and R1554. The optocoupler U494-D is used to convert the optical signal transmitted by the fourth drop-in port grating 206 into a current signal and transmit the current signal to the control chip U22. Pin 4 of the optocoupler U494-D is connected to the signal output terminal IN_NPN_RASTER-4 of the fourth drop-in port grating 206. Pin 3 of the optocoupler U494-D is connected to one end of the resistor R1554, the other end of the resistor R1554 is connected to the power supply voltage VCC, pin 2 of the optocoupler U494-D is grounded, pin 1 of the optocoupler U494-D is connected to the cathode of the light-emitting diode D574, the anode of the light-emitting diode D574 is connected to one end of the resistor R1564, the other end of the resistor R1564 is grounded, and pin 1 of the optocoupler U494-D is also connected to pin 12 of the control chip U22.

[0131] The fifth gripper feedback circuit 265 includes an optocoupler U495-D, a light-emitting diode D575, and resistors R1565 and R1555. The optocoupler U495-D is used to convert the optical signal transmitted by the fifth drop port grating 206 into a current signal and transmit the current signal to the control chip U22. Pin 4 of the optocoupler U495-D is connected to the signal output terminal IN_NPN_RASTER-5 of the fifth drop port grating 206, pin 3 of the optocoupler U495-D is connected to one end of the resistor R1555, the other end of the resistor R1555 is connected to the power supply voltage VCC, pin 2 of the optocoupler U495-D is grounded, pin 1 of the optocoupler U495-D is connected to the cathode of the light-emitting diode D575, the anode of the light-emitting diode D575 is connected to one end of the resistor R1565, the other end of the resistor R1565 is grounded, and pin 1 of the optocoupler U495-D is also connected to pin 1 of the control chip U22.

[0132] The sixth gripper feedback circuit 266 includes an optocoupler U496-D, a light-emitting diode D576, and resistors R1566 and R1556. The optocoupler U496-D is used to convert the optical signal transmitted by the sixth drop-in port grating 206 into a current signal and transmit the current signal to the control chip U22. Pin 4 of the optocoupler U496-D is connected to the signal output terminal IN_NPN_RASTER-6 of the sixth drop-in port grating 206. Pin 3 of the optocoupler U496-D is connected to one end of the resistor R1556, the other end of the resistor R1556 is connected to the power supply voltage VCC. Pin 2 of the optocoupler U496-D is grounded. Pin 1 of the optocoupler U496-D is connected to the cathode of the light-emitting diode D576. The anode of the light-emitting diode D576 is connected to one end of the resistor R1566, the other end of the resistor R1566 is grounded. Pin 1 of the optocoupler U496-D is also connected to pin 5 of the control chip U22.

[0133] The seventh gripper feedback circuit 267 includes an optocoupler U497-D, a light-emitting diode D577, and resistors R1567 and R1557. The optocoupler U497-D is used to convert the optical signal transmitted by the seventh drop-in port grating 206 into a current signal and transmit the current signal to the control chip U22. Pin 4 of the optocoupler U497-D is connected to the signal output terminal IN_NPN_RASTER-7 of the seventh drop-in port grating 206. Pin 3 of the optocoupler U497-D is connected to one end of the resistor R1557, the other end of the resistor R1557 is connected to the power supply voltage VCC, pin 2 of the optocoupler U497-D is grounded, pin 1 of the optocoupler U497-D is connected to the cathode of the light-emitting diode D577, the anode of the light-emitting diode D577 is connected to one end of the resistor R1567, the other end of the resistor R1567 is grounded, and pin 1 of the optocoupler U497-D is also connected to pin 2 of the control chip U22.

[0134] The eighth gripper feedback circuit 268 includes an optocoupler U498-D, a light-emitting diode D578, and resistors R1568 and R1558; the optocoupler U498-D is used to convert the optical signal transmitted by the eighth drop-in port grating 206 into a current signal and transmit the current signal to the control chip U22; pin 4 of the optocoupler U498-D is connected to the signal output terminal IN_NPN_RASTER-8 of the eighth drop-in port grating 206, pin 3 of the optocoupler U498-D is connected to one end of the resistor R1558, the other end of the resistor R1558 is connected to the power supply voltage VCC, pin 2 of the optocoupler U498-D is grounded, pin 1 of the optocoupler U498-D is connected to the cathode of the light-emitting diode D578, the anode of the light-emitting diode D578 is connected to one end of the resistor R1568, the other end of the resistor R1568 is grounded, and pin 1 of the optocoupler U498-D is also connected to pin 4 of the control chip U22.

[0135] As an embodiment of the present invention, refer to Figure 15 The multi-channel full overflow feedback unit 27 includes a control chip U34 and a full overflow feedback circuit; the control chip U34 is used to transmit the full monitoring signal detected by the full overflow feedback circuit to the MCU unit 1; the full overflow feedback circuit includes a first full overflow feedback circuit 271, a second full overflow feedback circuit 272, a third full overflow feedback circuit 273, a fourth full overflow feedback circuit 274, a fifth full overflow feedback circuit 275, a sixth full overflow feedback circuit 276, a seventh full overflow feedback circuit 277, and an eighth full overflow feedback circuit 278; the first full overflow feedback circuit 271 is used to detect the full monitoring signal of the first trash can mouth. The second full overflow feedback circuit 272 is used to detect the full monitoring signal of the second trash can port, the third full overflow feedback circuit 273 is used to detect the full monitoring signal of the third trash can port, the fourth full overflow feedback circuit 274 is used to detect the full monitoring signal of the fourth trash can port, the fifth full overflow feedback circuit 275 is used to detect the full monitoring signal of the fifth trash can port, the sixth full overflow feedback circuit 276 is used to detect the full monitoring signal of the sixth trash can port, the seventh full overflow feedback circuit 277 is used to detect the full monitoring signal of the seventh trash can port, and the eighth full overflow feedback circuit 278 is used to detect the full monitoring signal of the eighth trash can port;

[0136] The control chip U34 and the full overflow feedback circuit can be expanded according to the increase in the number of trash can openings;

[0137] Pin 3 of the control chip U34 is connected to terminal OVERFLOW, pins 11, 10, and 9 of the control chip U34 are connected to terminal A, terminal B, and terminal C respectively, and pin 6 of the control chip U34 is grounded;

[0138] The first overflow feedback circuit 271 includes an optocoupler U491-C, a light-emitting diode D581, and resistors R1581 and R1571. The optocoupler U491-C is used to convert the optical signal transmitted by the first trash can opening grating 207 into a current signal and transmit the current signal to the control chip U34. Pin 4 of the optocoupler U491-C is connected to the signal output terminal IN_NPNOVERFLOW-1 of the first trash can opening grating 207, pin 3 of the optocoupler U491-C is connected to one end of the resistor R1571, the other end of the resistor R1571 is connected to the power supply voltage VCC, pin 2 of the optocoupler U491-C is grounded, pin 1 of the optocoupler U491-C is connected to the cathode of the light-emitting diode D581, the anode of the light-emitting diode D581 is connected to one end of the resistor R1581, the other end of the resistor R1581 is grounded, and pin 1 of the optocoupler U491-C is also connected to pin 13 of the control chip U34.

[0139] The second overflow feedback circuit 272 includes an optocoupler U492-C, a light-emitting diode D582, and resistors R1582 and R1572. The optocoupler U492-C is used to convert the optical signal transmitted by the second trash can opening grating 207 into a current signal and transmit the current signal to the control chip U34. Pin 4 of the optocoupler U492-C is connected to the signal output terminal IN_NPNOVERFLOW-2 of the second trash can opening grating 207, pin 3 of the optocoupler U492-C is connected to one end of the resistor R1572, the other end of the resistor R1572 is connected to the power supply voltage VCC, pin 2 of the optocoupler U492-C is grounded, pin 1 of the optocoupler U492-C is connected to the cathode of the light-emitting diode D582, the anode of the light-emitting diode D582 is connected to one end of the resistor R1582, the other end of the resistor R1582 is grounded, and pin 1 of the optocoupler U492-C is also connected to pin 14 of the control chip U34.

[0140] The third overflow feedback circuit 273 includes an optocoupler U493-C, a light-emitting diode D583, and resistors R1583 and R1573. The optocoupler U493-C is used to convert the optical signal transmitted by the third trash can opening grating 207 into a current signal and transmit the current signal to the control chip U34. Pin 4 of the optocoupler U493-C is connected to the signal output terminal IN_NPNOVERFLOW-3 of the third trash can opening grating 207, pin 3 of the optocoupler U493-C is connected to one end of the resistor R1573, the other end of the resistor R1573 is connected to the power supply voltage VCC, pin 2 of the optocoupler U493-C is grounded, pin 1 of the optocoupler U493-C is connected to the cathode of the light-emitting diode D583, the anode of the light-emitting diode D583 is connected to one end of the resistor R1583, the other end of the resistor R1583 is grounded, and pin 1 of the optocoupler U493-C is also connected to pin 15 of the control chip U34.

[0141] The fourth overflow feedback circuit 274 includes an optocoupler U494-C, a light-emitting diode D584, and resistors R1584 and R1574. The optocoupler U494-C is used to convert the optical signal transmitted by the fourth trash can opening grating 207 into a current signal and transmit the current signal to the control chip U34. Pin 4 of the optocoupler U494-C is connected to the signal output terminal IN_NPNOVERFLOW-4 of the fourth trash can opening grating 207. Pin 3 of the optocoupler U494-C is connected to one end of the resistor R1574, the other end of the resistor R1574 is connected to the power supply voltage VCC, pin 2 of the optocoupler U494-C is grounded, pin 1 of the optocoupler U494-C is connected to the cathode of the light-emitting diode D584, the anode of the light-emitting diode D584 is connected to one end of the resistor R1584, the other end of the resistor R1584 is grounded, and pin 1 of the optocoupler U494-C is also connected to pin 12 of the control chip U34.

[0142] The fifth overflow feedback circuit 275 includes an optocoupler U495-C, a light-emitting diode D585, and resistors R1585 and R1575. The optocoupler U495-C is used to convert the optical signal transmitted by the fifth trash can opening grating 207 into a current signal and transmit the current signal to the control chip U34. Pin 4 of the optocoupler U495-C is connected to the signal output terminal IN_NPNOVERFLOW-5 of the fifth trash can opening grating 207, pin 3 of the optocoupler U495-C is connected to one end of the resistor R1575, the other end of the resistor R1575 is connected to the power supply voltage VCC, pin 2 of the optocoupler U495-C is grounded, pin 1 of the optocoupler U495-C is connected to the cathode of the light-emitting diode D585, the anode of the light-emitting diode D585 is connected to one end of the resistor R1585, the other end of the resistor R1585 is grounded, and pin 1 of the optocoupler U495-C is also connected to pin 1 of the control chip U34.

[0143] The sixth overflow feedback circuit 276 includes an optocoupler U496-C, a light-emitting diode D586, and resistors R1586 and R1576. The optocoupler U496-C is used to convert the optical signal transmitted by the sixth trash can opening grating 207 into a current signal and transmit the current signal to the control chip U34. Pin 4 of the optocoupler U496-C is connected to the signal output terminal IN_NPNOVERFLOW-6 of the sixth trash can opening grating 207. Pin 3 of the optocoupler U496-C is connected to one end of the resistor R1576, the other end of the resistor R1576 is connected to the power supply voltage VCC, pin 2 of the optocoupler U496-C is grounded, pin 1 of the optocoupler U496-C is connected to the cathode of the light-emitting diode D586, the anode of the light-emitting diode D586 is connected to one end of the resistor R1586, the other end of the resistor R1586 is grounded, and pin 1 of the optocoupler U496-C is also connected to pin 5 of the control chip U34.

[0144] The seventh overflow feedback circuit 277 includes an optocoupler U497-C, a light-emitting diode D587, and resistors R1587 and R1577. The optocoupler U497-C is used to convert the optical signal transmitted by the seventh trash can opening grating 207 into a current signal and transmit the current signal to the control chip U34. Pin 4 of the optocoupler U497-C is connected to the signal output terminal IN_NPNOVERFLOW-7 of the seventh trash can opening grating 207. Pin 3 of the optocoupler U497-C is connected to one end of the resistor R1577, the other end of the resistor R1577 is connected to the power supply voltage VCC, pin 2 of the optocoupler U497-C is grounded, pin 1 of the optocoupler U497-C is connected to the cathode of the light-emitting diode D587, the anode of the light-emitting diode D587 is connected to one end of the resistor R1587, the other end of the resistor R1587 is grounded, and pin 1 of the optocoupler U497-C is also connected to pin 2 of the control chip U34.

[0145] The eighth full overflow feedback circuit 278 includes an optocoupler U498-C, a light-emitting diode D588, and resistors R1588 and R1578; the optocoupler U498-C is used to convert the optical signal transmitted by the eighth trash can opening grating 207 into a current signal and transmit the current signal to the control chip U34; pin 4 of the optocoupler U498-C is connected to the signal output terminal IN_NPNOVERFLOW-8 of the eighth trash can opening grating 207, pin 3 of the optocoupler U498-C is connected to one end of the resistor R1578, the other end of the resistor R1578 is connected to the power supply voltage VCC, pin 2 of the optocoupler U498-C is grounded, pin 1 of the optocoupler U498-C is connected to the cathode of the light-emitting diode D588, the anode of the light-emitting diode D588 is connected to one end of the resistor R1588, the other end of the resistor R1588 is grounded, and pin 1 of the optocoupler U498-C is also connected to pin 4 of the control chip U34.

[0146] As an embodiment of the present invention, refer to Figure 17The multi-channel human body approach feedback unit 28 includes a control chip U33 and a human body approach feedback circuit; the control chip U33 is used to transmit the human body approach monitoring signal detected by the human body approach feedback circuit to the MCU unit 1; the human body approach feedback circuit includes a first human body approach feedback circuit 281, a second human body approach feedback circuit 282, a third human body approach feedback circuit 283, a fourth human body approach feedback circuit 284, a fifth human body approach feedback circuit 285, a sixth human body approach feedback circuit 286, a seventh human body approach feedback circuit 287, and an eighth human body approach feedback circuit 288; the first human body approach feedback circuit 281 is used to detect the human body approach monitoring signal of the first delivery port. a second human body proximity feedback circuit 282 for detecting a human body proximity monitoring signal at the second delivery port; a third human body proximity feedback circuit 283 for detecting a human body proximity monitoring signal at the third delivery port; a fourth human body proximity feedback circuit 284 for detecting a human body proximity monitoring signal at the fourth delivery port; a fifth human body proximity feedback circuit 285 for detecting a human body proximity monitoring signal at the fifth delivery port; a sixth human body proximity feedback circuit 286 for detecting a human body proximity monitoring signal at the sixth delivery port; a seventh human body proximity feedback circuit 287 for detecting a human body proximity monitoring signal at the seventh delivery port; and an eighth human body proximity feedback circuit 288 for detecting a human body proximity monitoring signal at the eighth delivery port;

[0147] The control chip U33 and the human body proximity feedback circuit can be expanded as the number of delivery ports increases;

[0148] Pin 3 of the control chip U33 is connected to terminal near, pins 11, 10, and 9 of the control chip U33 are connected to terminal A, terminal B, and terminal C respectively, and pin 6 of the control chip U33 is grounded;

[0149] The first human proximity feedback circuit 281 includes an optocoupler U481-C, a light-emitting diode D481, and resistors R1481 and R2481. The optocoupler U481-C is used to convert the optical signal transmitted by the first human proximity sensor 208 into a current signal and transmit the current signal to the control chip U33. Pin 4 of the optocoupler U481-C is connected to the signal output terminal IN_NPNNER-1 of the first human proximity sensor 208, pin 3 of the optocoupler U481-C is connected to one end of the resistor R2481, the other end of the resistor R2481 is connected to the power supply voltage VCC, pin 2 of the optocoupler U481-C is grounded, pin 1 of the optocoupler U481-C is connected to the cathode of the light-emitting diode D481, the anode of the light-emitting diode D481 is connected to one end of the resistor R1481, the other end of the resistor R1481 is grounded, and pin 1 of the optocoupler U481-C is also connected to pin 13 of the control chip U33.

[0150] The second human proximity feedback circuit 282 includes an optocoupler U482-C, a light-emitting diode D482, and resistors R1482 and R2482. The optocoupler U482-C is used to convert the optical signal transmitted by the second human proximity sensor 208 into a current signal and transmit the current signal to the control chip U33. Pin 4 of the optocoupler U482-C is connected to the signal output terminal IN_NPNNER-2 of the second human proximity sensor 208, pin 3 of the optocoupler U482-C is connected to one end of the resistor R2482, the other end of the resistor R2482 is connected to the power supply voltage VCC, pin 2 of the optocoupler U482-C is grounded, pin 1 of the optocoupler U482-C is connected to the cathode of the light-emitting diode D482, the anode of the light-emitting diode D482 is connected to one end of the resistor R1482, the other end of the resistor R1482 is grounded, and pin 1 of the optocoupler U482-C is also connected to pin 14 of the control chip U33.

[0151] The third human proximity feedback circuit 283 includes an optocoupler U483-C, a light-emitting diode D483, and resistors R1483 and R2483. The optocoupler U483-C is used to convert the optical signal transmitted by the third human proximity sensor 208 into a current signal and transmit the current signal to the control chip U33. Pin 4 of the optocoupler U483-C is connected to the signal output terminal IN_NPNNER-3 of the third human proximity sensor 208, pin 3 of the optocoupler U483-C is connected to one end of the resistor R2483, the other end of the resistor R2483 is connected to the power supply voltage VCC, pin 2 of the optocoupler U483-C is grounded, pin 1 of the optocoupler U483-C is connected to the cathode of the light-emitting diode D483, the anode of the light-emitting diode D483 is connected to one end of the resistor R1483, the other end of the resistor R1483 is grounded, and pin 1 of the optocoupler U483-C is also connected to pin 15 of the control chip U33.

[0152] The fourth human proximity feedback circuit 284 includes an optocoupler U484-C, a light-emitting diode D484, and resistors R1484 and R2484. The optocoupler U484-C is used to convert the optical signal transmitted by the fourth human proximity sensor 208 into a current signal and transmit the current signal to the control chip U33. Pin 4 of the optocoupler U484-C is connected to the signal output terminal IN_NPNNER-4 of the fourth human proximity sensor 208, pin 3 of the optocoupler U484-C is connected to one end of the resistor R2484, the other end of the resistor R2484 is connected to the power supply voltage VCC, pin 2 of the optocoupler U484-C is grounded, pin 1 of the optocoupler U484-C is connected to the cathode of the light-emitting diode D484, the anode of the light-emitting diode D484 is connected to one end of the resistor R1484, the other end of the resistor R1484 is grounded, and pin 1 of the optocoupler U484-C is also connected to pin 12 of the control chip U33.

[0153] The fifth human proximity feedback circuit 285 includes an optocoupler U485-C, a light-emitting diode D485, and resistors R1485 and R2485. The optocoupler U485-C is used to convert the optical signal transmitted by the fifth human proximity sensor 208 into a current signal and transmit the current signal to the control chip U33. Pin 4 of the optocoupler U485-C is connected to the signal output terminal IN_NPNNER-5 of the fifth human proximity sensor 208, pin 3 of the optocoupler U485-C is connected to one end of the resistor R2485, the other end of the resistor R2485 is connected to the power supply voltage VCC, pin 2 of the optocoupler U485-C is grounded, pin 1 of the optocoupler U485-C is connected to the cathode of the light-emitting diode D485, the anode of the light-emitting diode D485 is connected to one end of the resistor R1485, the other end of the resistor R1485 is grounded, and pin 1 of the optocoupler U485-C is also connected to pin 1 of the control chip U33.

[0154] The sixth human proximity feedback circuit 286 includes an optocoupler U486-C, a light-emitting diode D486, and resistors R1486 and R2486. The optocoupler U486-C is used to convert the optical signal transmitted by the sixth human proximity sensor 208 into a current signal and transmit the current signal to the control chip U33. Pin 4 of the optocoupler U486-C is connected to the signal output terminal IN_NPNNER-6 of the sixth human proximity sensor 208, pin 3 of the optocoupler U486-C is connected to one end of the resistor R2486, the other end of the resistor R2486 is connected to the power supply voltage VCC, pin 2 of the optocoupler U486-C is grounded, pin 1 of the optocoupler U486-C is connected to the cathode of the light-emitting diode D486, the anode of the light-emitting diode D486 is connected to one end of the resistor R1486, the other end of the resistor R1486 is grounded, and pin 1 of the optocoupler U486-C is also connected to pin 5 of the control chip U33.

[0155] The seventh human proximity feedback circuit 287 includes an optocoupler U487-C, a light-emitting diode D487, and resistors R1487 and R2487. The optocoupler U487-C is used to convert the optical signal transmitted by the seventh human proximity sensor 208 into a current signal and transmit the current signal to the control chip U33. Pin 4 of the optocoupler U487-C is connected to the signal output terminal IN_NPNNER-7 of the seventh human proximity sensor 208, pin 3 of the optocoupler U487-C is connected to one end of the resistor R2487, the other end of the resistor R2487 is connected to the power supply voltage VCC, pin 2 of the optocoupler U487-C is grounded, pin 1 of the optocoupler U487-C is connected to the cathode of the light-emitting diode D487, the anode of the light-emitting diode D487 is connected to one end of the resistor R1487, the other end of the resistor R1487 is grounded, and pin 1 of the optocoupler U487-C is also connected to pin 2 of the control chip U33.

[0156] The eighth human body proximity feedback circuit 288 includes an optocoupler U488-C, a light-emitting diode D488, and resistors R1488 and R2488; the optocoupler U488-C is used to convert the optical signal transmitted by the eighth human body proximity sensor 208 into a current signal and transmit the current signal to the control chip U33; pin 4 of the optocoupler U488-C is connected to the signal output terminal IN_NPNNER-8 of the eighth human body proximity sensor 208, pin 3 of the optocoupler U488-C is connected to one end of the resistor R2488, the other end of the resistor R2488 is connected to the power supply voltage VCC, pin 2 of the optocoupler U488-C is grounded, pin 1 of the optocoupler U488-C is connected to the cathode of the light-emitting diode D488, the anode of the light-emitting diode D488 is connected to one end of the resistor R1488, the other end of the resistor R1488 is grounded, and pin 1 of the optocoupler U488-C is also connected to pin 4 of the control chip U33.

[0157] As an embodiment of the present invention, refer to Figure 16The control output unit 29 includes an interface 6P, MOS tubes Q4, Q6, Q8, Q10, transistors Q3, Q5, Q7, Q9, light-emitting diodes D12, D17, D18, D19, resistors R10, R21, R23, R24, R25, R26, R28, R29, R30, R31, R32, R33, R34, R35, R36, R37, R38, R39, R40, and R69; the interface 6P is used to connect to the external device 209, the pin 5 of the interface 6P is grounded, the pin 1 of the interface 6P is respectively connected to the D pole of the MOS tube Q4 and one end of the resistor R25, and the other end of the resistor R25 is connected to the light-emitting diode 209. The anode of diode D12 and the cathode of light-emitting diode D12 are grounded. The S-pole of MOS transistor Q4 is connected to the motor voltage terminal MOS_VCC of external device 209 and one end of resistor R10 respectively. The G-pole of MOS transistor Q4 is connected to the other end of resistor R10 and one end of resistor R21 respectively. The other end of resistor R21 is connected to the collector of transistor Q3. The emitter of transistor Q3 is grounded. The base of transistor Q3 is connected to one end of resistor R24 ​​and one end of resistor R23 respectively. The other end of resistor R24 ​​is connected to terminal OUT-1. The other end of resistor R23 is grounded. Pin 2 of interface 6P is connected to the D-pole of MOS transistor Q6 and one end of resistor R31 respectively. The other end of the resistor R31 is connected to the anode of the light-emitting diode D17, the cathode of the light-emitting diode D17 is grounded, the S pole of the MOS transistor Q6 is respectively connected to the motor voltage terminal MOS_VCC of the external device 209 and one end of the resistor R26, the G pole of the MOS transistor Q6 is respectively connected to the other end of the resistor R26 and one end of the resistor R28, the other end of the resistor R28 is connected to the collector of the transistor Q5, the emitter of the transistor Q5 is grounded, the base of the transistor Q5 is respectively connected to one end of the resistor R30 and one end of the resistor R29, the other end of the resistor R30 is connected to the terminal OUT-2, and the other end of the resistor R29 is grounded; the pins 3 of the interface 6P are respectively connected to the MO The D electrode of the MOS transistor Q8 is connected to one end of the resistor R36. The other end of the resistor R36 is connected to the anode of the light-emitting diode D18. The cathode of the light-emitting diode D18 is grounded. The S electrode of the MOS transistor Q8 is respectively connected to the motor voltage terminal MOS_VCC of the external device 209 and one end of the resistor R32. The G electrode of the MOS transistor Q8 is respectively connected to the other end of the resistor R32 and one end of the resistor R33. The other end of the resistor R33 is connected to the collector of the transistor Q7. The emitter of the transistor Q7 is grounded. The base of the transistor Q7 is respectively connected to one end of the resistor R35 and one end of the resistor R34. The other end of the resistor R35 is connected to the terminal OUT-3. The other end of the resistor R34 is grounded.Pin 4 of interface 6P is connected to the D electrode of MOS transistor Q10 and one end of resistor R69, respectively. The other end of resistor R69 is connected to the anode of light-emitting diode D19, and the cathode of light-emitting diode D19 is grounded. The S electrode of MOS transistor Q10 is connected to the motor voltage terminal MOS_VCC of external device 209 and one end of resistor R37, respectively. The G electrode of MOS transistor Q10 is connected to the other end of resistor R37 and one end of resistor R38, respectively. The other end of resistor R38 is connected to the collector of transistor Q9, and the emitter of transistor Q9 is grounded. The base of transistor Q9 is connected to one end of resistor R40 and one end of resistor R39, respectively. The other end of resistor R40 is connected to terminal OUT-4, and the other end of resistor R39 is grounded.

[0158] As an embodiment of the present invention, refer to Figure 5 The sound prompt unit 5 includes a speaker BU1, a transistor Q1, resistors R3 and R4; the positive pole of the speaker BU1 is connected to the terminal, the negative pole of the speaker BU1 is connected to the collector of the transistor Q1, the emitter of the transistor Q1 is grounded, the base of the transistor Q1 is respectively connected to one end of the resistor R3 and one end of the resistor R4, the other end of the resistor R3 is grounded, and the other end of the resistor R4 is connected to the terminal BUZZER.

[0159] As an embodiment of the present invention, refer to Figure 12, the display and key input unit 6 includes a control chip U5, digital tubes D8 and D9, buttons S1, S2, S3, S4, S5, diodes D13, D14, D15, D16, D21, capacitor C21, and resistors R17, R19, and R27; the control chip U5 is used to transmit the signals input through the buttons S1, S2, S3, S4, and S5 to the MCU unit 1, and output the control signal of the MCU unit 1 to the digital tubes D8 and D9 for display; pins 18 and 25 of the control chip U5 are connected to ground, pins 26 of the control chip U5 are respectively connected to the terminal DIO and one end of the resistor R27, pins 27 of the control chip U5 are respectively connected to the terminal CLK and one end of the resistor R19, pins 28 of the control chip U5 are respectively connected to the terminal STB and one end of the resistor R17, pin 4 of the control chip U5 is connected to the other end of the resistor R17, the other end of the resistor R19, and the other end of the electronic R27, and then connected to the terminal, and pin 4 of the control chip U5 is also connected to Pin 15 is connected to one end of capacitor C21, and the other end of capacitor C21 is grounded. Pins 5 to 12 of the control chip U5 are connected to the corresponding pins of the digital tube D8 and the digital tube D9 respectively. Pins 19 to 24 of the control chip U5 are connected to the corresponding pins of the digital tube D8 and the digital tube D9 respectively. One end of the button S1 is connected to one end of the button S2 and then connected to pin 1 of the control chip U5. One end of the button S3 is connected to one end of the button S3 and then connected to pin 2 of the control chip U5. One end of S5 is connected to pin 3 of the control chip U5, the other end of button S1 is connected to the cathode of diode D13, the other end of button S2 is connected to the cathode of diode D14, the other end of button S3 is connected to the cathode of diode D15, the other end of button S4 is connected to the cathode of diode D16, and the other end of button S5 is connected to the cathode of diode D21. The positive poles of diodes D13, D14, D15, D16, and D21 are respectively connected to the corresponding pins of digital tubes D8 and D9.

[0160] As an embodiment of the present invention, refer to Figure 14, the serial communication unit 7 includes RS232 driver / receiver U2, RS485 driver / receiver U4, selection switch KE1, RS232 communication interface J1, RS485 communication interface J2, polarity capacitors C7 and C8, capacitors C9, C10, C11, C12 and C14, resistors R5, R6, R7, R8, R9, R10, R11, R12, R13, R14 and R15, Zener diodes Z11, Z12, Z21, Z22, Z31 and Z32; RS232 communication interface J1 is used to connect to the host computer 90121 via the RS232 communication protocol, the RS485 communication interface J2 is used to connect to the host computer 90121 via the RS485 communication protocol, the RS232 driver / receiver U2 is used to receive or send control signals based on the RS232 communication protocol, and the RS485 driver / receiver U4 is used to receive or send control signals based on the RS485 communication protocol; the selection switch KE1 is used to select whether MCU01 communicates with the host computer 90121 via the RS232 communication protocol or the RS485 communication protocol;

[0161] Pin 4 and pin 3 of the selection switch KE1 are connected to terminal RX, pin 11 of the RS232 driver / receiver U2 is connected to one end of resistor R8 and terminal TX respectively, pin 4 of the selection switch KE1 is also connected to one end of resistor R7, the other end of resistor R7 and the other end of resistor R8 are connected to terminal, pin 1 of the selection switch KE1 is connected to one end of resistor R9, the other end of resistor R9 is connected to pin 12 of the RS232 driver / receiver U2, pin 2 of the selection switch KE1 is connected to one end of resistor R10, the other end of resistor R10 is connected to pin 1 of the RS485 driver / receiver U4;

[0162] Pin 1 of the RS232 driver / receiver U2 is connected to one end of capacitor C10, the other end of capacitor C10 is connected to pin 3 of the RS232 driver / receiver U2, pin 4 of the RS232 driver / receiver U2 is connected to one end of capacitor C11, the other end of capacitor C11 is connected to pin 5 of the RS232 driver / receiver U2, pin 10 of the RS232 driver / receiver U2 is grounded, pin 15 of the RS232 driver / receiver U2 is grounded, pin 8 of the RS232 driver / receiver U2 is grounded, pin 13 of the RS232 driver / receiver U2 is connected to one end of resistor R6, the other end of resistor R6 is connected to pin 1 of the RS232 communication interface J1, pin 14 of the RS232 driver / receiver U2 is connected to one end of resistor R5, the other end of resistor R5 is connected to pin 2 of the RS232 communication interface J1, pin 3 of the RS232 communication interface J1 is grounded, pin 1 of the RS232 communication interface J1 is a data receiving end, and pin 2 of the RS232 communication interface is a data sending end;

[0163] Pin 2 and pin 3 of RS485 driver / receiver U4 are connected to terminal RDE, pin 4 of RS485 driver / receiver U4 is connected to terminal TX, pin 5 of RS485 driver / receiver U4 is grounded, pin 8 of RS485 driver / receiver U4 is connected to the power supply terminal, pin 6 of RS485 driver / receiver U4 is connected to one end of resistor R11 and one end of resistor R13 respectively, the other end of resistor R11 is connected to the terminal, the connection point of one end of resistor R11 and one end of resistor R13 is connected to the cathode of Zener diode Z11 and the cathode of Zener diode Z22 respectively, the connection point of the cathode of Zener diode Z11 and the cathode of Zener diode Z22 is connected to one end of capacitor C12 and one end of resistor R12 respectively, the other end of capacitor C12 is grounded, the other end of resistor R12 is connected to pin 1 of RS485 communication interface J2, the voltage regulator The positive electrode of diode Z11 is connected to the positive electrode of Zener diode Z12, the negative electrode of Zener diode Z12 is grounded, pin 7 of RS485 driver / receiver U4 is respectively connected to the other end of resistor R13 and one end of resistor R15, the other end of resistor R15 is grounded, the connection point of the other end of resistor R13 and one end of resistor R15 is respectively connected to the negative electrode of Zener diode Z21 and the negative electrode of Zener diode Z32, the positive electrode of Zener diode Z21 is connected to the positive electrode of Zener diode Z22, the positive electrode of Zener diode Z32 is connected to the positive electrode of Zener diode Z31, the negative electrode of Zener diode Z31 is grounded, the connection point of the negative electrode of Zener diode Z21 and the negative electrode of Zener diode Z32 is respectively connected to one end of capacitor C14 and one end of resistor R14, the other end of capacitor C14 is grounded, and the other end of resistor R14 is connected to pin 2 of RS485 communication interface J2.

[0164] As an embodiment of the present invention, refer to Figure 7 The temperature and humidity sensor unit 8 includes an interface J4, resistors R15 and R16; the interface J4 is used to connect to the temperature and humidity sensor 81, pin 4 of the interface J4 is grounded, pin 3 of the interface J4 is respectively connected to the terminal SDA and one end of the resistor R16, pin 2 of the interface J4 is respectively connected to the terminal SCL and one end of the resistor R15, pin 1 of the interface J4 is connected to the terminal, and the other end of the resistor R15 is connected to the other end of the resistor R16 and then connected to the terminal.

[0165] As an embodiment of the present invention, refer to Figure 10The power supply unit 3 includes a voltage conversion chip U1, a socket CON1, dual-voltage regulator diodes T1 and T2, an inductor L1, polar capacitors C2, C3, C6, capacitors C1, C4, C5, and diodes D1, D2, D3, and D4; the socket CON1 is used to connect to an external power supply, and the voltage conversion chip U1 is used to convert the voltage of the external power supply after rectification and filtering into a specified working voltage; pin 2 of the socket CON1 is grounded, and pin 1 of the socket CON1 is respectively connected to the positive poles of diodes D1, D2, and D3, and the negative poles of diodes D2 and D3 are connected and then connected to one end of the dual-voltage regulator diode T1 and one end of the capacitor C1, the other end of the dual-voltage regulator diode T1 is grounded, and the other end of the capacitor C1 is grounded. One end of the capacitor C1 is also connected to the positive pole of the polar capacitor C2 and the power supply voltage VCC, and the negative pole of the polar capacitor C2 is grounded. The diode The negative pole of D1 is connected to one end of the dual-voltage regulator diode T2, and the other end of the dual-voltage regulator diode T2 is grounded. One end of the dual-voltage regulator diode T2 is also connected to the positive pole of the polarity capacitor C3 and one end of the capacitor C4 respectively. The negative pole of the polarity capacitor C3 is grounded, and the other end of the capacitor C4 is grounded. One end of the capacitor C4 is also connected to pin 1 of the voltage conversion chip U1. Pin 2 of the voltage conversion chip U1 is respectively connected to one end of the inductor L1 and the negative pole of the diode D4. The positive pole of the diode D4 is grounded. Pin 3 of the voltage conversion chip U1 is respectively connected to the other end of the inductor L1 and the positive pole of the polarity capacitor C6. The negative pole of the polarity capacitor C6 is grounded. The other end of the inductor L1 is respectively connected to one end and the terminal of the capacitor C5. The other end of the capacitor C5 is grounded. Pin 4 of the voltage conversion chip U1 is grounded. Pin 8, Pin 7, Pin 6 and Pin 5 of the voltage conversion chip U1 are connected and then grounded.

[0166] Application scenarios of the present invention are as follows Figure 18 As shown, the delivery point includes eight trash cans, which are used to deliver metal, electronics, plastic, glass, kitchenware, chemicals, hazardous and other garbage respectively. Each trash can includes an input port and a trash can mouth. The trash can is located inside the trash can mouth. The input port is equipped with an automatic door, which is controlled by a motor 203. The automatic door is equipped with an opening limit sensor 204, an input port grating, and a closing limit sensor 205. The trash can mouth is equipped with an electric bolt lock 202 door, and the electric bolt lock 202 door is equipped with an electric bolt lock 202 for opening and locking the electric bolt lock 202 door. A trash can mouth grating 207 is installed on the top of the trash can, a pressure sensor 201 is installed on the bottom of the trash can, and a temperature and humidity sensor 81 is installed at a designated position of the delivery point. In this way, the following functions can be achieved through the above technical solution: (1) electronic control automation of garbage classification; (2) automatic weighing of valuable recycled garbage; (3) use of electric lock 202, eliminating the need for multiple key management for one door and one lock; (4) contactless door opening; (5) automatic reporting to remind staff when the garbage bin is full; (5) automatic spray disinfection.

[0167] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A garbage classification system, characterized in that: Automatic control of a garbage classification box at a garbage disposal point, the garbage disposal point including a plurality of garbage classification boxes, each of the garbage classification boxes including an input port, a garbage bin opening, and a garbage bin, the garbage bin being located inside the garbage classification box, the garbage bin opening being used for taking out and putting in the garbage bin, the input port being used for putting in garbage, the input port being equipped with an automatic door, the automatic door being equipped with a motor, the motor being used to drive the automatic door to rotate, the garbage bin inlet and outlet being equipped with an electric latch door, the electric latch door being equipped with an electric latch, the electric latch being used to open and lock the electric latch door; The garbage sorting system includes an MCU unit, a multi-channel electronic scale acquisition unit, a multi-channel electric latch unit, a forward and reverse drive unit, a multi-channel door opening feedback unit, a multi-channel door closing feedback unit, a multi-channel anti-pinch feedback unit, a multi-channel full overflow feedback unit, a multi-channel human approach feedback unit, a control output unit, and a current monitoring unit; the MCU unit is respectively connected to the multi-channel electronic scale acquisition unit, the multi-channel electric latch unit, the forward and reverse drive unit, the multi-channel door opening feedback unit, the multi-channel door closing feedback unit, the multi-channel anti-pinch feedback unit, the multi-channel full overflow feedback unit, the multi-channel human approach feedback unit, and the control output unit, and the current monitoring unit is respectively connected to the forward and reverse drive unit and the MCU unit; The multi-channel electronic scale collection unit is used to collect weight data of the garbage stored in the garbage bin through a pressure sensor installed at the bottom of the garbage bin, and transmit the weight data to the MCU unit to realize the function of automatic weighing of valuable recycling garbage; The multi-channel electric lock unit is used to monitor the door magnetic state and the lock tongue state of the electric lock, and transmit the door magnetic state and the lock tongue state to the MCU unit, and output the lock control signal issued by the MCU unit according to the door magnetic state and the lock tongue state to the electric lock, so as to realize the opening and locking of the electric lock; The current monitoring unit is used to monitor the current of the motor. The MCU unit adjusts the current output to the motor by the forward and reverse drive unit according to the current signal of the motor transmitted by the current monitoring unit, thereby providing overcurrent protection for the motor. The forward and reverse driving unit is used to drive the motor to realize the forward and reverse rotation of the automatic door according to the control signal of the MCU unit, thereby opening or closing the input port; The multi-way door opening feedback unit is used to monitor whether the automatic door is fully opened through the door opening limit sensor installed on the automatic door, and send a door fully opened monitoring signal to the MCU unit, and the MCU unit controls whether the forward and reverse drive unit stops working according to the door fully opened monitoring signal; The multi-way door closing feedback unit is used to monitor whether the automatic door is fully closed through the door closing limit sensor installed on the automatic door, and send a door fully closed monitoring signal to the MCU unit, and the MCU unit controls whether the forward and reverse drive unit stops working according to the door fully closed monitoring signal; The multi-channel anti-pinch feedback unit is used to monitor whether there is an object at the door when the automatic door is closed through the grating installed at the door opening of the automatic door, and send the door object monitoring signal to the MCU unit. The MCU unit controls whether the forward and reverse drive unit stops working according to the door object monitoring signal. The multi-channel full and overflow feedback unit is used to monitor whether the trash can is full through the trash can mouth grating installed on the top of the trash can, and send a full monitoring signal to the MCU unit and then to the host computer through the MCU unit, so as to realize the function of automatically reporting the full and overflowing trash can to remind the staff; The multi-channel human approach feedback unit is used to monitor whether a human body approaches the automatic door through a human body approach sensor installed on the automatic door, and send a human body approach monitoring signal to the MCU unit, and the MCU unit controls the forward and reverse drive unit according to the human body approach monitoring signal, so that when a human body approaches, the forward and reverse drive unit drives the motor to rotate the automatic door to open the input port, and when the human body leaves, the forward and reverse drive unit drives the motor to rotate the automatic door to close the input port; The control output unit is used for the MCU unit to output a control signal to control an external device to achieve a specified function, wherein the specified function includes disinfection, deodorization and cleaning; The garbage classification system also includes a sound prompt unit, a display and key input unit, a serial communication unit, a temperature and humidity sensor unit, and a power supply unit connected to the MCU unit; the sound prompt unit is used to sound an alarm for the alarm signal emitted by the MCU unit, and to emit a prompt sound for each working state of the MCU unit; the display and key input unit is used to display the working state of the MCU unit and to set the MCU unit to realize the human-computer interaction function; the serial communication unit is used for the MCU unit to communicate with the host computer, on the one hand, the MCU unit receives the instructions of the host computer through the serial communication unit, and on the other hand, the MCU unit uploads the collected data and processing and analysis results to the host computer for storage or for processing by the host computer through the serial communication unit; the temperature and humidity sensor unit is used to collect temperature and humidity data through the temperature and humidity sensor installed at the garbage disposal point, and transmit it to the MCU unit for processing and analysis; the power supply unit is used to provide working power for the garbage classification system; The multi-channel human body approach feedback unit includes a control chip U33 and a human body approach feedback circuit; the control chip U33 is used to transmit the human body approach monitoring signal detected by the human body approach feedback circuit to the MCU unit; the human body approach feedback circuit includes a first human body approach feedback circuit, a second human body approach feedback circuit, a third human body approach feedback circuit, a fourth human body approach feedback circuit, a fifth human body approach feedback circuit, a sixth human body approach feedback circuit, a seventh human body approach feedback circuit, and an eighth human body approach feedback circuit; the first human body approach feedback circuit is used to detect the human body approach monitoring signal of the first said delivery port, the second human body approach feedback circuit is used to detect the human body approach monitoring signal of the first said delivery port, and the second human body approach feedback circuit is used to detect the human body approach monitoring signal of the first said delivery port. The feedback circuit is used to detect the human body approaching monitoring signal of the second delivery port, the third human body approaching feedback circuit is used to detect the human body approaching monitoring signal of the third delivery port, the fourth human body approaching feedback circuit is used to detect the human body approaching monitoring signal of the fourth delivery port, the fifth human body approaching feedback circuit is used to detect the human body approaching monitoring signal of the fifth delivery port, the sixth human body approaching feedback circuit is used to detect the human body approaching monitoring signal of the sixth delivery port, the seventh human body approaching feedback circuit is used to detect the human body approaching monitoring signal of the seventh delivery port, and the eighth human body approaching feedback circuit is used to detect the human body approaching monitoring signal of the eighth delivery port.

2. A garbage classification system according to claim 1, characterized in that: The MCU unit includes a microprocessor U3, a crystal oscillator Y1, capacitors C13 and C15, a light-emitting diode D5, and a resistor R22; a pin 30 of the microprocessor U3 is respectively connected to one end of the crystal oscillator Y1 and one end of the capacitor C15, and the other end of the capacitor C15 is grounded; a pin 13 of the microprocessor U3 is respectively connected to the other end of the crystal oscillator Y1 and one end of the capacitor C13, and the other end of the capacitor C13 is grounded; a pin 2 of the microprocessor U3 is connected to the cathode of the light-emitting diode D5, the anode of the light-emitting diode D5 is connected to one end of the resistor R22, and the other end of the resistor R22 is connected to a terminal; a pin 1 of the microprocessor U3 is a terminal RX for receiving data; Pin 3 of the processor U3 is the terminal BUZZER, which is used to send a sound control signal to the sound prompt unit; Pin 4 of the microprocessor U3 is the terminal PD_SCK, which is used to input a digital signal; Pin 5 of the microprocessor U3 is the terminal DOUT, which is used to output a digital signal; Pin 7 and Pin 28 of the microprocessor U3 are connected to terminals respectively; Pin 8 of the microprocessor U3 is the terminal RASTER, which is used to receive the door object monitoring signal; Pin 9 of the microprocessor U3 is the terminal OVERFLOW, which is used to receive the full monitoring signal; Pin 10 of the microprocessor U3 is the terminal OPEN, which is used to receive the door opening position monitoring signal; Pin 10 of the microprocessor U3 is the terminal OPEN, which is used to receive the door opening position monitoring signal The terminal SHUT is used to receive the door closing detection signal; the pin 14 of the microprocessor U3 is the terminal near, which is used to receive the human body approaching detection signal; the pins 15, 16, 17 and 19 of the microprocessor U3 are terminals OUT-1, OUT-2, OUT-3 and OUT-4 respectively, which are used to output control signals to the control output unit; the pin 20 of the microprocessor U3 is the terminal STB, which is used to control whether the power board is working; the pin 21 of the microprocessor U3 is the terminal CLK, which is used to input the clock; the pin 22 of the microprocessor U3 is the terminal DIO, which is used for input and output of digital signals; the pin 23 of the microprocessor U3 is the terminal L OCK, used to output the lock tongue control signal of the electric lock; Pin 24 of the microprocessor U3 is the terminal GATE_MAGNETISM, used to output the door magnetic control signal of the electric lock; Pin 25 of the microprocessor U3 is the terminal LOCK_DATA, used to output the lock control signal; Pin 26 of the microprocessor U3 is the terminal LOCK_CLK, used to output the clock signal to the multi-way electric lock unit; Pin 27 of the microprocessor U3 is the terminal LOCK_RCLK, used to receive the clock signal of the multi-way electric lock unit; Pin 32 of the microprocessor U3 is the terminal SCL, which is the clock line; Pin 35 of the microprocessor U3 is the terminal SDA, which is the data line;Pin 36 of the microprocessor U3 is terminal REV, used to output a reverse control signal to the forward / reverse drive unit; pin 37 of the microprocessor U3 is terminal FWD, used to output a forward control signal to the forward / reverse drive unit; pins 38, 39, and 40 of the microprocessor U3 are terminals A, B, and C, respectively, used to input sampled data; pin 41 of the microprocessor U3 is terminal INH-1, an enable pin; pin 43 of the microprocessor U3 is terminal RDE, a communication protocol terminal; and pin 44 of the microprocessor U3 is terminal TX, used to transmit data.

3. A garbage classification system according to claim 2, characterized in that: The multi-channel electronic scale acquisition unit includes sampling chips U8 and U9, and an electronic scale acquisition circuit; the sampling chips U8 and U9 are used to transmit the weight data collected by the electronic scale acquisition circuit to the MCU unit; The electronic scale acquisition circuit includes a first electronic scale acquisition circuit, a second electronic scale acquisition circuit, a third electronic scale acquisition circuit, a fourth electronic scale acquisition circuit, a fifth electronic scale acquisition circuit, a sixth electronic scale acquisition circuit, a seventh electronic scale acquisition circuit, and an eighth electronic scale acquisition circuit; The first electronic scale acquisition circuit is used to collect weight data of the first trash can, the second electronic scale acquisition circuit is used to collect weight data of the second trash can, the third electronic scale acquisition circuit is used to collect weight data of the third trash can, the fourth electronic scale acquisition circuit is used to collect weight data of the fourth trash can, the fifth electronic scale acquisition circuit is used to collect weight data of the fifth trash can, the sixth electronic scale acquisition circuit is used to collect weight data of the sixth trash can, the seventh electronic scale acquisition circuit is used to collect weight data of the seventh trash can, and the eighth electronic scale acquisition circuit is used to collect weight data of the eighth trash can; The sampling chips U8 and U9, as well as the electronic scale acquisition circuit, can be expanded as the number of the trash cans increases; Pin 3 of the sampling chip U8 is connected to the terminal PD_SCK, pin 11 of the sampling chip U8 is connected to the terminal A, pin 10 of the sampling chip U8 is connected to the terminal B, pin 9 of the sampling chip U8 is connected to the terminal C, and pin 6 of the sampling chip U8 is connected to the terminal INH-1; pin 3 of the sampling chip U9 is connected to the terminal DOUT, pin 11 of the sampling chip U9 is connected to the terminal A, pin 10 of the sampling chip U9 is connected to the terminal B, pin 9 of the sampling chip U9 is connected to the terminal C, and pin 6 of the sampling chip U9 is connected to the terminal INH-1; The first electronic scale acquisition circuit includes an AD conversion chip U61, an interface J51, inductors L21 and L31, capacitors C161, C221, C281, C291, C301, C341, C311, and resistors R421 and R411; the interface J51 is used to connect to the pressure sensor installed at the bottom of the first trash can, and the AD conversion chip U61 is used to convert the analog signal input by the interface J51 into a digital signal; the pin 5 of the interface J51 is connected to the power supply 5V, Pin 4 of the interface J51 is connected to one end of the inductor L21, and the other end of the inductor L21 is respectively connected to one end of the capacitor C301, one end of the resistor R421, and one end of the capacitor C341. The other end of the capacitor C301 is grounded, and the other end of the resistor R421 is respectively connected to one end of the capacitor C291 and one end of the capacitor C281. One end of the capacitor C281 is also connected to pin 4 of the AD conversion chip U61. Pin 3 of the interface J51 is connected to the capacitor C301. One end of the inductor L31, the other end of the inductor L31 is respectively connected to the other end of the capacitor C341, one end of the resistor R411 and one end of the capacitor C311, the other end of the resistor R411 is respectively connected to the other end of the capacitor C291 and the other end of the capacitor C281, the other end of the capacitor C281 is also connected to pin 3 of the AD conversion chip U61, pin 2 of the interface J51 is grounded, pin 1 of the interface J51 is connected to one end of the capacitor C221, the other end of the capacitor C221 is respectively connected to the other end of the capacitor C311 and ground, pin 2 of the AD conversion chip U61 is grounded, pin 1 of the AD conversion chip U61 is connected to pin 7 and pin 8, and then connected to the analog voltage AVDD and one end of the capacitor C161, the other end of the capacitor C161 is grounded, pin 5 of the AD conversion chip U61 is connected to pin 13 of the sampling chip U8, and pin 6 of the AD conversion chip U61 is connected to pin 13 of the sampling chip U9; The second electronic scale acquisition circuit includes an AD conversion chip U62, an interface J52, inductors L22 and L32, capacitors C162, C222, C282, C292, C302, C342, C312, and resistors R422 and R412; the interface J52 is used to connect to a pressure sensor installed at the bottom of the second trash can, and the AD conversion chip U62 is used to convert the analog signal input by the interface J52 into a digital signal; the pin 5 of the interface J52 is connected to the power supply 5V, Pin 4 of the interface J52 is connected to one end of the inductor L22, and the other end of the inductor L22 is respectively connected to one end of the capacitor C302, one end of the resistor R422, and one end of the capacitor C342. The other end of the capacitor C302 is grounded, and the other end of the resistor R422 is respectively connected to one end of the capacitor C292 and one end of the capacitor C282. One end of the capacitor C282 is also connected to pin 4 of the AD conversion chip U62. Pin 3 of the interface J52 is connected to the capacitor C302. One end of the inductor L32, the other end of the inductor L32 is respectively connected to the other end of the capacitor C342, one end of the resistor R412 and one end of the capacitor C312, the other end of the resistor R412 is respectively connected to the other end of the capacitor C292 and the other end of the capacitor C282, the other end of the capacitor C282 is also connected to pin 3 of the AD conversion chip U62, pin 2 of the interface J52 is grounded, pin 1 of the interface J52 is connected to one end of the capacitor C222, the other end of the capacitor C222 is respectively connected to the other end of the capacitor C312 and ground, pin 2 of the AD conversion chip U62 is grounded, pin 1 of the AD conversion chip U62 is connected to pin 7 and pin 8, and then connected to the analog voltage AVDD and one end of the capacitor C162, the other end of the capacitor C162 is grounded, pin 5 of the AD conversion chip U62 is connected to pin 14 of the sampling chip U8, and pin 6 of the AD conversion chip U62 is connected to pin 14 of the sampling chip U9; The third electronic scale acquisition circuit includes an AD conversion chip U63, an interface J53, inductors L23 and L33, capacitors C163, C223, C283, C293, C303, C343, C313, and resistors R423 and R413; the interface J53 is used to connect to the pressure sensor installed at the bottom of the third trash can, and the AD conversion chip U63 is used to convert the analog signal input by the interface J53 into a digital signal; the pin 5 of the interface J53 is connected to the power supply 5V, Pin 4 of the interface J53 is connected to one end of the inductor L23, and the other end of the inductor L23 is respectively connected to one end of the capacitor C303, one end of the resistor R423, and one end of the capacitor C343. The other end of the capacitor C303 is grounded, and the other end of the resistor R423 is respectively connected to one end of the capacitor C293 and one end of the capacitor C283. One end of the capacitor C283 is also connected to pin 4 of the AD conversion chip U63. Pin 3 of the interface J53 is connected to the capacitor C303. One end of the inductor L33, the other end of the inductor L33 is respectively connected to the other end of the capacitor C343, one end of the resistor R413 and one end of the capacitor C313, the other end of the resistor R413 is respectively connected to the other end of the capacitor C293 and the other end of the capacitor C283, the other end of the capacitor C283 is also connected to pin 3 of the AD conversion chip U63, pin 2 of the interface J53 is grounded, pin 1 of the interface J53 is connected to one end of the capacitor C223, the other end of the capacitor C223 is respectively connected to the other end of the capacitor C313 and ground, pin 2 of the AD conversion chip U63 is grounded, pin 1 of the AD conversion chip U63 is connected to pin 7 and pin 8, and then connected to the analog voltage AVDD and one end of the capacitor C163, the other end of the capacitor C163 is grounded, pin 5 of the AD conversion chip U63 is connected to pin 15 of the sampling chip U8, and pin 6 of the AD conversion chip U63 is connected to pin 15 of the sampling chip U9; The fourth electronic scale acquisition circuit includes an AD conversion chip U64, an interface J54, inductors L24 and L34, capacitors C164, C224, C284, C294, C304, C344, C314, and resistors R424 and R414; the interface J54 is used to connect to the pressure sensor installed at the bottom of the fourth trash can, and the AD conversion chip U64 is used to convert the analog signal input by the interface J54 into a digital signal; the pin 5 of the interface J54 is connected to the power supply 5V, Pin 4 of the interface J54 is connected to one end of the inductor L24, and the other end of the inductor L24 is respectively connected to one end of the capacitor C304, one end of the resistor R424, and one end of the capacitor C344. The other end of the capacitor C304 is grounded, and the other end of the resistor R424 is respectively connected to one end of the capacitor C294 and one end of the capacitor C284. One end of the capacitor C284 is also connected to pin 4 of the AD conversion chip U64. Pin 3 of the interface J54 is connected to the capacitor C304. One end of the inductor L34, the other end of the inductor L34 is respectively connected to the other end of the capacitor C344, one end of the resistor R414 and one end of the capacitor C314, the other end of the resistor R414 is respectively connected to the other end of the capacitor C294 and the other end of the capacitor C284, the other end of the capacitor C284 is also connected to pin 3 of the AD conversion chip U64, pin 2 of the interface J54 is grounded, pin 1 of the interface J54 is connected to one end of the capacitor C224, the other end of the capacitor C224 is respectively connected to the other end of the capacitor C314 and ground, pin 2 of the AD conversion chip U64 is grounded, pin 1 of the AD conversion chip U64 is connected to pin 7 and pin 8, and then connected to the analog voltage AVDD and one end of the capacitor C164, the other end of the capacitor C164 is grounded, pin 5 of the AD conversion chip U64 is connected to pin 12 of the sampling chip U8, and pin 6 of the AD conversion chip U64 is connected to pin 12 of the sampling chip U9; The fifth electronic scale acquisition circuit includes an AD conversion chip U65, an interface J55, inductors L25 and L35, capacitors C165, C225, C285, C295, C305, C345, C315, and resistors R425 and R415; the interface J55 is used to connect to the pressure sensor installed at the bottom of the fifth trash can, and the AD conversion chip U65 is used to convert the analog signal input by the interface J55 into a digital signal; the pin 5 of the interface J55 is connected to the power supply 5V, Pin 4 of the interface J55 is connected to one end of the inductor L25, and the other end of the inductor L25 is respectively connected to one end of the capacitor C305, one end of the resistor R425, and one end of the capacitor C345. The other end of the capacitor C305 is grounded, and the other end of the resistor R425 is respectively connected to one end of the capacitor C295 and one end of the capacitor C285. One end of the capacitor C285 is also connected to pin 4 of the AD conversion chip U65. Pin 3 of the interface J55 is connected to the One end of the inductor L35, the other end of the inductor L35 is respectively connected to the other end of the capacitor C345, one end of the resistor R415 and one end of the capacitor C315, the other end of the resistor R415 is respectively connected to the other end of the capacitor C295 and the other end of the capacitor C285, the other end of the capacitor C285 is also connected to pin 3 of the AD conversion chip U65, pin 2 of the interface J55 is grounded, pin 1 of the interface J55 is connected to one end of the capacitor C225, the other end of the capacitor C225 is respectively connected to the other end of the capacitor C315 and ground, pin 2 of the AD conversion chip U65 is grounded, pin 1 of the AD conversion chip U65 is connected to pin 7 and pin 8, and then connected to the analog voltage AVDD and one end of the capacitor C165, respectively, the other end of the capacitor C165 is grounded, pin 5 of the AD conversion chip U65 is connected to pin 1 of the sampling chip U8, and pin 6 of the AD conversion chip U65 is connected to pin 1 of the sampling chip U9; The sixth electronic scale acquisition circuit includes an AD conversion chip U66, an interface J56, inductors L26 and L36, capacitors C166, C226, C286, C296, C306, C346, C316, and resistors R426 and R416; the interface J56 is used to connect to the pressure sensor installed at the bottom of the sixth trash can, and the AD conversion chip U66 is used to convert the analog signal input by the interface J56 into a digital signal; the pin 5 of the interface J56 is connected to the power supply 5V, Pin 4 of the interface J56 is connected to one end of the inductor L26, and the other end of the inductor L26 is respectively connected to one end of the capacitor C306, one end of the resistor R426, and one end of the capacitor C346. The other end of the capacitor C306 is grounded, and the other end of the resistor R426 is respectively connected to one end of the capacitor C296 and one end of the capacitor C286. One end of the capacitor C286 is also connected to pin 4 of the AD conversion chip U66. Pin 3 of the interface J56 is connected to the One end of the inductor L36, the other end of the inductor L36 is respectively connected to the other end of the capacitor C346, one end of the resistor R416 and one end of the capacitor C316, the other end of the resistor R416 is respectively connected to the other end of the capacitor C296 and the other end of the capacitor C286, the other end of the capacitor C286 is also connected to pin 3 of the AD conversion chip U66, pin 2 of the interface J56 is grounded, pin 1 of the interface J56 is connected to one end of the capacitor C226, the other end of the capacitor C226 is respectively connected to the other end of the capacitor C316 and ground, pin 2 of the AD conversion chip U66 is grounded, pin 1 of the AD conversion chip U66 is connected to pin 7 and pin 8, and then connected to the analog voltage AVDD and one end of the capacitor C166, the other end of the capacitor C166 is grounded, pin 5 of the AD conversion chip U66 is connected to pin 5 of the sampling chip U8, and pin 6 of the AD conversion chip U66 is connected to pin 5 of the sampling chip U9; The seventh electronic scale acquisition circuit includes an AD conversion chip U67, an interface J57, inductors L27 and L37, capacitors C167, C227, C287, C297, C307, C347, C317, and resistors R427 and R417; the interface J57 is used to connect to the pressure sensor installed at the bottom of the seventh trash can, and the AD conversion chip U67 is used to convert the analog signal input by the interface J57 into a digital signal; the pin 5 of the interface J57 is connected to the power supply 5V, Pin 4 of the interface J57 is connected to one end of the inductor L27, and the other end of the inductor L27 is respectively connected to one end of the capacitor C307, one end of the resistor R427, and one end of the capacitor C347. The other end of the capacitor C307 is grounded, and the other end of the resistor R427 is respectively connected to one end of the capacitor C297 and one end of the capacitor C287. One end of the capacitor C287 is also connected to pin 4 of the AD conversion chip U67. Pin 3 of the interface J57 is connected to the One end of the inductor L37, the other end of the inductor L37 is respectively connected to the other end of the capacitor C347, one end of the resistor R417 and one end of the capacitor C317, the other end of the resistor R417 is respectively connected to the other end of the capacitor C297 and the other end of the capacitor C287, the other end of the capacitor C287 is also connected to pin 3 of the AD conversion chip U67, pin 2 of the interface J57 is grounded, pin 1 of the interface J57 is connected to one end of the capacitor C227, the other end of the capacitor C227 is respectively connected to the other end of the capacitor C317 and ground, pin 2 of the AD conversion chip U67 is grounded, pin 1 of the AD conversion chip U67 is connected to pin 7 and pin 8, and then connected to the analog voltage AVDD and one end of the capacitor C167, the other end of the capacitor C167 is grounded, pin 5 of the AD conversion chip U67 is connected to pin 2 of the sampling chip U8, and pin 6 of the AD conversion chip U67 is connected to pin 2 of the sampling chip U9; The eighth electronic scale acquisition circuit includes an AD conversion chip U68, an interface J58, inductors L28 and L38, capacitors C168, C228, C288, C298, C308, C348, C318, and resistors R428 and R418; the interface J58 is used to connect to the pressure sensor installed at the bottom of the eighth trash can, and the AD conversion chip U68 is used to convert the analog signal input by the interface J58 into a digital signal; the pin 5 of the interface J58 is connected to the power supply 5V, Pin 4 of the interface J58 is connected to one end of the inductor L28, and the other end of the inductor L28 is respectively connected to one end of the capacitor C308, one end of the resistor R428, and one end of the capacitor C348. The other end of the capacitor C308 is grounded, and the other end of the resistor R428 is respectively connected to one end of the capacitor C298 and one end of the capacitor C288. One end of the capacitor C288 is also connected to pin 4 of the AD conversion chip U68. Pin 3 of the interface J58 is connected to the One end of the inductor L38, and the other end of the inductor L38 are respectively connected to the other end of the capacitor C348, one end of the resistor R418 and one end of the capacitor C318, the other end of the resistor R418 is respectively connected to the other end of the capacitor C298 and the other end of the capacitor C288, the other end of the capacitor C288 is also connected to pin 3 of the AD conversion chip U68, pin 2 of the interface J58 is grounded, pin 1 of the interface J58 is connected to one end of the capacitor C228, the other end of the capacitor C228 is respectively connected to the other end of the capacitor C318 and ground, pin 2 of the AD conversion chip U68 is grounded, pin 1 of the AD conversion chip U68 is connected to pin 7 and pin 8, and then connected to the analog voltage AVDD and one end of the capacitor C168, respectively, the other end of the capacitor C168 is grounded, pin 5 of the AD conversion chip U68 is connected to pin 4 of the sampling chip U8, and pin 6 of the AD conversion chip U68 is connected to pin 4 of the sampling chip U9.

4. A garbage classification system according to claim 2, characterized in that: The multi-channel electric lock unit includes a DA conversion chip U12, sampling chips U13 and U14, and an electric lock circuit; the DA conversion chip U12 is used to transmit the lock control signal emitted by the MCU unit to the electric lock circuit to realize the opening and locking of the electric lock, the sampling chip U13 is used to transmit the door magnetic state of the electric lock collected by the electric lock circuit to the MCU unit, and the sampling chip U14 is used to transmit the lock tongue state of the electric lock collected by the electric lock circuit to the MCU unit; The electric latch lock circuit includes a first electric latch lock circuit, a second electric latch lock circuit, a third electric latch lock circuit, a fourth electric latch lock circuit, a fifth electric latch lock circuit, a sixth electric latch lock circuit, a seventh electric latch lock circuit, and an eighth electric latch lock circuit; the first electric latch lock circuit is used to control the opening and locking of the first electric latch lock, and collect the door magnetic state and lock tongue state of the first electric latch lock; the second electric latch lock circuit is used to control the opening and locking of the second electric latch lock, and collect the door magnetic state and lock tongue state of the second electric latch lock; the third electric latch lock circuit is used to control the opening and locking of the third electric latch lock, and collect the door magnetic state and lock tongue state of the third electric latch lock, and the fourth electric latch lock circuit is used to control the opening and locking of the third electric latch lock, and collect the door magnetic state and lock tongue state of the third electric latch lock. The lock circuit is used to control the opening and locking of the fourth electric bolt lock, and collect the door magnetic state and lock tongue state of the fourth electric bolt lock; the fifth electric bolt lock circuit is used to control the opening and locking of the fifth electric bolt lock, and collect the door magnetic state and lock tongue state of the fifth electric bolt lock; the sixth electric bolt lock circuit is used to control the opening and locking of the sixth electric bolt lock, and collect the door magnetic state and lock tongue state of the sixth electric bolt lock; the seventh electric bolt lock circuit is used to control the opening and locking of the seventh electric bolt lock, and collect the door magnetic state and lock tongue state of the seventh electric bolt lock; the eighth electric bolt lock circuit is used to control the opening and locking of the eighth electric bolt lock, and collect the door magnetic state and lock tongue state of the eighth electric bolt lock; The DA conversion chip U12, the sampling chips U13 and U14, and the electric lock circuit can be expanded as the number of electric locks increases; Pin 13 of the DA conversion chip U12 is grounded, pin 12 of the DA conversion chip U12 is connected to the terminal LOCK_RCLK, pin 10 of the DA conversion chip U12 is connected to one end of the capacitor C20, the other end of the capacitor C20 is grounded, pin 11 of the DA conversion chip U12 is connected to the terminal LOCK_CLK, pin 14 of the DA conversion chip U12 is connected to the terminal LOCK_DATA, pin 3 of the sampling chip U13 is connected to the terminal GATE_MAGENTISM, pin 11 of the sampling chip U13 is connected to the terminal A, pin 10 of the sampling chip U13 is connected to the terminal B, pin 9 of the sampling chip U13 is connected to the terminal C, pin 6 of the sampling chip U13 is grounded, and pin 3 of the sampling chip U14 is connected to the terminal LOCK; The first electric lock circuit includes an interface J151, optocouplers U171-D and U171-C, a transistor Q201, light-emitting diodes D221, D111, D101, resistors R571, R581, R831, R551, R541, R561, and R531; the interface J151 is used to connect to the first electric lock, pin 2 of the interface J151 is used to output the lock control signal, pin 3 of the interface J151 is used to input the door magnetic state, and pin 4 of the interface J151 is used to input the lock tongue state; the optocoupler U171-D is used to convert the door magnetic state into a current signal and transmit the current signal to the acquisition The sampling chip U13, the optocoupler U171-C is used to convert the lock tongue state into an electrical signal and transmit the current signal to the sampling chip U14; the pin 1 of the interface J151 is connected to the power supply voltage VCC, the pin 5 of the interface J151 is grounded, the pin 2 of the interface J151 is respectively connected to the emitter of the transistor Q201 and one end of the resistor R831, the collector of the transistor Q201 is connected to the power supply voltage VCC, the base of the transistor Q201 is respectively connected to one end of the resistor R571 and one end of the resistor R581, the other end of the resistor R581 is grounded, and the other end of the resistor R831 is connected to the light-emitting diode The positive electrode of D221, the negative electrode of the light-emitting diode D221 is grounded, the pin 3 of the interface J151 is connected to the pin 4 of the optocoupler U171-D, the pin 3 of the optocoupler U171-D is connected to one end of the resistor R551, the other end of the resistor R551 is connected to the power supply voltage VCC, the pin 2 of the optocoupler U171-D is grounded, the pin 1 of the optocoupler U171-D is connected to the negative electrode of the light-emitting diode D111, the positive electrode of the light-emitting diode D111 is connected to one end of the resistor R541, the other end of the resistor R541 is connected to the terminal, the pin 4 of the interface J151 is connected to the pin 4 of the optocoupler U171-C, the optocoupler U171-D Pin 3 of 1-C is connected to one end of the resistor R561, the other end of the resistor R561 is connected to the power supply voltage VCC, pin 2 of the optocoupler U171-C is grounded, pin 1 of the optocoupler U171-C is connected to the cathode of the light-emitting diode D101, the anode of the light-emitting diode D101 is connected to one end of the resistor R531, the other end of the resistor R531 is connected to the terminal, the other end of the resistor R571 is connected to pin 15 of the DA conversion chip U12, pin 1 of the optocoupler U171-D is also connected to pin 13 of the sampling chip U13, and pin 1 of the optocoupler U171-C is also connected to pin 13 of the sampling chip U14; The second electric lock circuit includes an interface J152, optocouplers U172-D and U172-C, a transistor Q202, light-emitting diodes D222, D112, D102, resistors R572, R582, R832, ​​R552, R542, R562, and R532; the interface J152 is used to connect to the second electric lock, pin 2 of the interface J152 is used to output the lock control signal, pin 3 of the interface J152 is used to input the door magnetic state, and pin 4 of the interface J152 is used to input the lock tongue state; the optocoupler U172-D is used to convert the door magnetic state into a current signal and transmit the current signal to the acquisition The sampling chip U13, the optocoupler U172-C is used to convert the lock tongue state into an electrical signal and transmit the current signal to the sampling chip U14; the pin 1 of the interface J152 is connected to the power supply voltage VCC, the pin 5 of the interface J152 is grounded, the pin 2 of the interface J152 is respectively connected to the emitter of the transistor Q202 and one end of the resistor R832, ​​the collector of the transistor Q202 is connected to the power supply voltage VCC, the base of the transistor Q202 is respectively connected to one end of the resistor R572 and one end of the resistor R582, the other end of the resistor R582 is grounded, and the other end of the resistor R832 is connected to the light-emitting diode The positive electrode of D222, the negative electrode of the light-emitting diode D222 is grounded, the pin 3 of the interface J152 is connected to the pin 4 of the optocoupler U172-D, the pin 3 of the optocoupler U172-D is connected to one end of the resistor R552, the other end of the resistor R552 is connected to the power supply voltage VCC, the pin 2 of the optocoupler U172-D is grounded, the pin 1 of the optocoupler U172-D is connected to the negative electrode of the light-emitting diode D112, the positive electrode of the light-emitting diode D112 is connected to one end of the resistor R542, the other end of the resistor R542 is connected to the terminal, the pin 4 of the interface J152 is connected to the pin 4 of the optocoupler U172-C, the optocoupler U1 Pin 3 of 72-C is connected to one end of the resistor R562, the other end of the resistor R562 is connected to the power supply voltage VCC, pin 2 of the optocoupler U172-C is grounded, pin 1 of the optocoupler U172-C is connected to the cathode of the light-emitting diode D102, the anode of the light-emitting diode D102 is connected to one end of the resistor R532, the other end of the resistor R532 is connected to the terminal, the other end of the resistor R572 is connected to pin 1 of the DA conversion chip U12, pin 1 of the optocoupler U172-D is also connected to pin 14 of the sampling chip U13, and pin 1 of the optocoupler U172-C is also connected to pin 14 of the sampling chip U14; The third electric lock circuit includes an interface J153, optocouplers U173-D and U173-C, a transistor Q203, light-emitting diodes D223, D113, D103, resistors R573, R583, R833, R553, R543, R563, and R533; the interface J153 is used to connect to the third electric lock, pin 2 of the interface J153 is used to output the lock control signal, pin 3 of the interface J153 is used to input the door magnetic state, and pin 4 of the interface J153 is used to input the lock tongue state; the optocoupler U173-D is used to convert the door magnetic state into a current signal and transmit the current signal to the acquisition The sampling chip U13, the optocoupler U173-C is used to convert the lock tongue state into an electrical signal and transmit the current signal to the sampling chip U14; the pin 1 of the interface J153 is connected to the power supply voltage VCC, the pin 5 of the interface J153 is grounded, the pin 2 of the interface J153 is respectively connected to the emitter of the transistor Q203 and one end of the resistor R833, the collector of the transistor Q203 is connected to the power supply voltage VCC, the base of the transistor Q203 is respectively connected to one end of the resistor R573 and one end of the resistor R583, the other end of the resistor R583 is grounded, and the other end of the resistor R833 is connected to the light-emitting diode The positive electrode of D223, the negative electrode of the light-emitting diode D223 is grounded, the pin 3 of the interface J153 is connected to the pin 4 of the optocoupler U173-D, the pin 3 of the optocoupler U173-D is connected to one end of the resistor R553, the other end of the resistor R553 is connected to the power supply voltage VCC, the pin 2 of the optocoupler U173-D is grounded, the pin 1 of the optocoupler U173-D is connected to the negative electrode of the light-emitting diode D113, the positive electrode of the light-emitting diode D113 is connected to one end of the resistor R543, the other end of the resistor R543 is connected to the terminal, the pin 4 of the interface J153 is connected to the pin 4 of the optocoupler U173-C, the optocoupler U1 Pin 3 of 73-C is connected to one end of the resistor R563, the other end of the resistor R563 is connected to the power supply voltage VCC, pin 2 of the optocoupler U173-C is grounded, pin 1 of the optocoupler U173-C is connected to the cathode of the light-emitting diode D103, the anode of the light-emitting diode D103 is connected to one end of the resistor R533, the other end of the resistor R533 is connected to the terminal, the other end of the resistor R573 is connected to pin 2 of the DA conversion chip U12, pin 1 of the optocoupler U173-D is also connected to pin 15 of the sampling chip U13, and pin 1 of the optocoupler U173-C is also connected to pin 15 of the sampling chip U14; The fourth electric lock circuit includes an interface J154, optocouplers U174-D and U174-C, a transistor Q204, light-emitting diodes D224, D114, D104, resistors R574, R584, R834, R554, R544, R564, and R534; the interface J154 is used to access the fourth electric lock, pin 2 of the interface J154 is used to output the lock control signal, pin 3 of the interface J154 is used to input the door magnetic state, and pin 4 of the interface J154 is used to input the lock tongue state; the optocoupler U174-D is used to convert the door magnetic state into a current signal and transmit the current signal to the acquisition The sampling chip U13, the optocoupler U174-C is used to convert the lock tongue state into an electrical signal and transmit the current signal to the sampling chip U14; the pin 1 of the interface J154 is connected to the power supply voltage VCC, the pin 5 of the interface J154 is grounded, the pin 2 of the interface J154 is respectively connected to the emitter of the transistor Q204 and one end of the resistor R834, the collector of the transistor Q204 is connected to the power supply voltage VCC, the base of the transistor Q204 is respectively connected to one end of the resistor R574 and one end of the resistor R584, the other end of the resistor R584 is grounded, and the other end of the resistor R834 is connected to the light-emitting diode The positive electrode of D224, the negative electrode of the light-emitting diode D224 is grounded, the pin 3 of the interface J154 is connected to the pin 4 of the optocoupler U174-D, the pin 3 of the optocoupler U174-D is connected to one end of the resistor R554, the other end of the resistor R554 is connected to the power supply voltage VCC, the pin 2 of the optocoupler U174-D is grounded, the pin 1 of the optocoupler U174-D is connected to the negative electrode of the light-emitting diode D114, the positive electrode of the light-emitting diode D114 is connected to one end of the resistor R544, the other end of the resistor R544 is connected to the terminal, the pin 4 of the interface J154 is connected to the pin 4 of the optocoupler U174-C, the optocoupler U1 Pin 3 of 74-C is connected to one end of the resistor R564, the other end of the resistor R564 is connected to the power supply voltage VCC, pin 2 of the optocoupler U174-C is grounded, pin 1 of the optocoupler U174-C is connected to the cathode of the light-emitting diode D104, the anode of the light-emitting diode D104 is connected to one end of the resistor R534, the other end of the resistor R534 is connected to the terminal, the other end of the resistor R574 is connected to pin 3 of the DA conversion chip U12, pin 1 of the optocoupler U174-D is also connected to pin 12 of the sampling chip U13, and pin 1 of the optocoupler U174-C is also connected to pin 12 of the sampling chip U14; The fifth electric lock circuit includes an interface J155, optocouplers U175-D and U175-C, a transistor Q205, light-emitting diodes D225, D115, D105, resistors R575, R585, R835, R555, R545, R565, and R535; the interface J155 is used to access the fifth electric lock, pin 2 of the interface J155 is used to output the lock control signal, pin 3 of the interface J155 is used to input the door magnetic state, and pin 4 of the interface J155 is used to input the lock tongue state; the optocoupler U175-D is used to convert the door magnetic state into a current signal and transmit the current signal to the acquisition The sampling chip U13, the optocoupler U175-C is used to convert the lock tongue state into an electrical signal and transmit the current signal to the sampling chip U14; the pin 1 of the interface J155 is connected to the power supply voltage VCC, the pin 5 of the interface J155 is grounded, the pin 2 of the interface J155 is respectively connected to the emitter of the transistor Q205 and one end of the resistor R835, the collector of the transistor Q205 is connected to the power supply voltage VCC, the base of the transistor Q205 is respectively connected to one end of the resistor R575 and one end of the resistor R585, the other end of the resistor R585 is grounded, and the other end of the resistor R835 is connected to the light-emitting diode The positive electrode of the tube D225, the negative electrode of the light-emitting diode D225 is grounded, the pin 3 of the interface J155 is connected to the pin 4 of the optocoupler U175-D, the pin 3 of the optocoupler U175-D is connected to one end of the resistor R555, the other end of the resistor R555 is connected to the power supply voltage VCC, the pin 2 of the optocoupler U175-D is grounded, the pin 1 of the optocoupler U175-D is connected to the negative electrode of the light-emitting diode D115, the positive electrode of the light-emitting diode D115 is connected to one end of the resistor R545, the other end of the resistor R545 is connected to the terminal, the pin 4 of the interface J155 is connected to the pin 4 of the optocoupler U175-C, the optocoupler U Pin 3 of 175-C is connected to one end of the resistor R565, the other end of the resistor R565 is connected to the power supply voltage VCC, pin 2 of the optocoupler U175-C is grounded, pin 1 of the optocoupler U175-C is connected to the cathode of the light-emitting diode D105, the anode of the light-emitting diode D105 is connected to one end of the resistor R535, the other end of the resistor R535 is connected to the terminal, the other end of the resistor R575 is connected to pin 4 of the DA conversion chip U12, pin 1 of the optocoupler U175-D is also connected to pin 1 of the sampling chip U13, and pin 1 of the optocoupler U175-C is also connected to pin 1 of the sampling chip U14; The sixth electric lock circuit includes an interface J156, optocouplers U176-D and U176-C, a transistor Q206, light-emitting diodes D226, D116, D106, resistors R576, R586, R836, R556, R546, R566, and R536; the interface J156 is used to connect to the sixth electric lock, pin 2 of the interface J156 is used to output the lock control signal, pin 3 of the interface J156 is used to input the door magnetic state, and pin 4 of the interface J156 is used to input the lock tongue state; the optocoupler U176-D is used to convert the door magnetic state into a current signal and transmit the current signal to the acquisition The sampling chip U13, the optocoupler U176-C is used to convert the lock tongue state into an electrical signal and transmit the current signal to the sampling chip U14; the pin 1 of the interface J156 is connected to the power supply voltage VCC, the pin 5 of the interface J156 is grounded, the pin 2 of the interface J156 is respectively connected to the emitter of the transistor Q206 and one end of the resistor R836, the collector of the transistor Q206 is connected to the power supply voltage VCC, the base of the transistor Q206 is respectively connected to one end of the resistor R576 and one end of the resistor R586, the other end of the resistor R586 is grounded, and the other end of the resistor R836 is connected to the light-emitting diode The positive electrode of the tube D226, the negative electrode of the light-emitting diode D226 is grounded, the pin 3 of the interface J156 is connected to the pin 4 of the optocoupler U176-D, the pin 3 of the optocoupler U176-D is connected to one end of the resistor R556, the other end of the resistor R556 is connected to the power supply voltage VCC, the pin 2 of the optocoupler U176-D is grounded, the pin 1 of the optocoupler U176-D is connected to the negative electrode of the light-emitting diode D116, the positive electrode of the light-emitting diode D116 is connected to one end of the resistor R546, the other end of the resistor R546 is connected to the terminal, the pin 4 of the interface J156 is connected to the pin 4 of the optocoupler U176-C, the optocoupler U Pin 3 of 176-C is connected to one end of the resistor R566, the other end of the resistor R566 is connected to the power supply voltage VCC, pin 2 of the optocoupler U176-C is grounded, pin 1 of the optocoupler U176-C is connected to the cathode of the light-emitting diode D106, the anode of the light-emitting diode D106 is connected to one end of the resistor R536, the other end of the resistor R536 is connected to the terminal, the other end of the resistor R576 is connected to pin 5 of the DA conversion chip U12, pin 1 of the optocoupler U176-D is also connected to pin 5 of the sampling chip U13, and pin 1 of the optocoupler U176-C is also connected to pin 5 of the sampling chip U14; The seventh electric lock circuit includes an interface J157, optocouplers U177-D and U177-C, a transistor Q207, light-emitting diodes D227, D117, D107, resistors R577, R587, R837, R557, R547, R567, and R537; the interface J157 is used to connect to the seventh electric lock, pin 2 of the interface J157 is used to output the lock control signal, pin 3 of the interface J157 is used to input the door magnetic state, and pin 4 of the interface J157 is used to input the lock tongue state; the optocoupler U177-D is used to convert the door magnetic state into a current signal and transmit the current signal to the acquisition The sampling chip U13, the optocoupler U177-C is used to convert the lock tongue state into an electrical signal and transmit the current signal to the sampling chip U14; the pin 1 of the interface J157 is connected to the power supply voltage VCC, the pin 5 of the interface J157 is grounded, the pin 2 of the interface J157 is respectively connected to the emitter of the transistor Q207 and one end of the resistor R837, the collector of the transistor Q207 is connected to the power supply voltage VCC, the base of the transistor Q207 is respectively connected to one end of the resistor R577 and one end of the resistor R587, the other end of the resistor R587 is grounded, and the other end of the resistor R837 is connected to the light-emitting diode The positive electrode of the tube D227, the negative electrode of the light-emitting diode D227 is grounded, the pin 3 of the interface J157 is connected to the pin 4 of the optocoupler U177-D, the pin 3 of the optocoupler U177-D is connected to one end of the resistor R557, the other end of the resistor R557 is connected to the power supply voltage VCC, the pin 2 of the optocoupler U177-D is grounded, the pin 1 of the optocoupler U177-D is connected to the negative electrode of the light-emitting diode D117, the positive electrode of the light-emitting diode D117 is connected to one end of the resistor R547, the other end of the resistor R547 is connected to the terminal, the pin 4 of the interface J157 is connected to the pin 4 of the optocoupler U177-C, the optocoupler U Pin 3 of 177-C is connected to one end of the resistor R567, the other end of the resistor R567 is connected to the power supply voltage VCC, pin 2 of the optocoupler U177-C is grounded, pin 1 of the optocoupler U177-C is connected to the cathode of the light-emitting diode D107, the anode of the light-emitting diode D107 is connected to one end of the resistor R537, the other end of the resistor R537 is connected to the terminal, the other end of the resistor R577 is connected to pin 6 of the DA conversion chip U12, pin 1 of the optocoupler U177-D is also connected to pin 2 of the sampling chip U13, and pin 1 of the optocoupler U177-C is also connected to pin 2 of the sampling chip U14; The eighth electric lock circuit includes an interface J158, optocouplers U178-D and U178-C, a transistor Q208, light-emitting diodes D228, D118, D108, resistors R578, R588, R838, R558, R548, R568, and R538; the interface J158 is used to connect to the eighth electric lock, pin 2 of the interface J158 is used to output the lock control signal, pin 3 of the interface J158 is used to input the door magnetic state, and pin 4 of the interface J158 is used to input the lock tongue state; the optocoupler U178-D is used to convert the door magnetic state into a current signal and transmit the current signal to the acquisition The sampling chip U13, the optocoupler U178-C is used to convert the lock tongue state into an electrical signal and transmit the current signal to the sampling chip U14; the pin 1 of the interface J158 is connected to the power supply voltage VCC, the pin 5 of the interface J158 is grounded, the pin 2 of the interface J158 is respectively connected to the emitter of the transistor Q208 and one end of the resistor R838, the collector of the transistor Q208 is connected to the power supply voltage VCC, the base of the transistor Q208 is respectively connected to one end of the resistor R578 and one end of the resistor R588, the other end of the resistor R588 is grounded, and the other end of the resistor R838 is connected to the light-emitting diode The positive electrode of the tube D228, the negative electrode of the light-emitting diode D228 is grounded, the pin 3 of the interface J158 is connected to the pin 4 of the optocoupler U178-D, the pin 3 of the optocoupler U178-D is connected to one end of the resistor R558, the other end of the resistor R558 is connected to the power supply voltage VCC, the pin 2 of the optocoupler U178-D is grounded, the pin 1 of the optocoupler U178-D is connected to the negative electrode of the light-emitting diode D118, the positive electrode of the light-emitting diode D118 is connected to one end of the resistor R548, the other end of the resistor R548 is connected to the terminal, the pin 4 of the interface J158 is connected to the pin 4 of the optocoupler U178-C, the optocoupler U Pin 3 of 178-C is connected to one end of the resistor R568, the other end of the resistor R568 is connected to the power supply voltage VCC, pin 2 of the optocoupler U178-C is grounded, pin 1 of the optocoupler U178-C is connected to the cathode of the light-emitting diode D108, the anode of the light-emitting diode D108 is connected to one end of the resistor R538, the other end of the resistor R538 is connected to the terminal, the other end of the resistor R578 is connected to pin 7 of the DA conversion chip U12, pin 1 of the optocoupler U178-D is also connected to pin 4 of the sampling chip U13, and pin 1 of the optocoupler U178-C is also connected to pin 4 of the sampling chip U14.

5. A garbage classification system according to claim 2, characterized in that: The current monitoring unit includes a current detection chip U11, a voltage stabilizing diode D7, a polarity capacitor C68, capacitors C66, C67, C69, C70, and resistors R82, R62, R63, R67, and R64; Pin 2 of the current detection chip U11 is grounded, Pin 5 of the current detection chip U11 is respectively connected to a terminal and one end of the capacitor C67, and the other end of the capacitor C67 is grounded; Pin 1 of the current detection chip U11 is respectively connected to one end of the resistor R67 and one end of the capacitor C70, and the other end of the resistor R67 and the other end of the capacitor C70 are respectively grounded; one end of the capacitor C70 is also connected to one end of the resistor R64, and the other end of the resistor R64 is respectively connected to the negative electrode of the voltage stabilizing diode D7 and the analog-to-digital converter of the microprocessor U3. Pin 3 of the current detection chip U11 is connected to one end of the resistor R62, the other end of the resistor R62 is respectively connected to one end of the resistor R82 and one end of the resistor R61, the other end of the resistor R82 is grounded, one end of the resistor R82 is also connected to the positive electrode of the polarity capacitor C68, the negative electrode of the polarity capacitor C68 is grounded, the positive electrode of the polarity capacitor C68 is also respectively connected to one end of the capacitor C69 and the power supply voltage VCC, the other end of the capacitor C69 is grounded, pin 4 of the current detection chip U11 is connected to one end of the resistor R63, the other end of the resistor R63 is respectively connected to the other end of the resistor R61 and one end of the capacitor C66, one end of the capacitor C66 is also connected to the voltage terminal MOS_VCC of the motor, and the other end of the capacitor C66 is grounded; The forward and reverse drive unit includes control chips U25 and U26, and a forward and reverse drive circuit; the forward and reverse drive circuit includes an interface J22, MOS tubes Q42, Q44, Q39, Q41, transistors Q43, Q45, Q46, Q40, Q47, Q48, light-emitting diodes D6, D20, capacitor C71, resistors R50, R52, R48, R60, R73, R68, R49, R75, R74, R51, R65, R66, R43, R44, R47, R59, R79, R45, R76, R46, R80, R81; the control chip U25 is used to receive and transmit the forward control signal; the control chip U26 is used to receive and transmit the forward control signal. The reverse control signal; Pin 3 of the control chip U25 is connected to the terminal FWD, Pin 10, Pin 11, and Pin 9 of the control chip U25 are respectively connected to Terminal A, Terminal B, and Terminal C, Pin 6 of the control chip U25 is grounded, Pin 13, Pin 14, Pin 15, Pin 12, Pin 1, Pin 5, Pin 2, and Pin 4 of the control chip U25 are used to output the forward control signal to each of the motors respectively; Pin 3 of the control chip U26 is connected to the terminal REV, Pin 10, Pin 11, and Pin 9 of the control chip U26 are respectively connected to Terminal A, Terminal B, and Terminal C, Pin 6 of the control chip U26 is grounded, Pins 13, 14, 15, 12, 1, 5, 2, and 4 of the control chip U26 are used to output the reverse control signal to the motor; the interface J22 is used to connect the motor to output the forward control signal and the reverse control signal to the motor; pin 1 of the interface J22 is connected to the positive pole of the motor, and pin 2 of the interface J22 is connected to the negative pole of the motor. Pin 1 of the interface J22 is also connected to the D pole of the MOS tube Q39 and one end of the capacitor C71, and pin 2 of the interface J22 is also connected to the D pole of the MOS tube Q41 and the other end of the capacitor C71, and one end of the capacitor C71 is also connected to The positive electrode of the light-emitting diode D20 is also connected to the negative electrode of the light-emitting diode D6 and the D electrode of the MOS tube Q42 respectively. The other end of the capacitor C71 is also connected to one end of the resistor R66. The other end of the resistor R66 is connected to the negative electrode of the light-emitting diode D20. One end of the resistor R66 is also connected to one end of the resistor R65 and the D electrode of the MOS tube Q44 respectively. The other end of the resistor R65 is connected to the positive electrode of the light-emitting diode D6. The S electrode of the MOS tube Q44 is connected to one end of the resistor R50 and then to one end of the capacitor C66. The other end of the resistor R50 is connected to one end of the resistor R52 and the G electrode of the MOS tube Q44 respectively.The other end of the resistor R52 is connected to the collector of the transistor Q43, the emitter of the transistor Q43 is grounded, the base of the transistor Q43 is respectively connected to one end of the resistor R48 and one end of the resistor R60, the other end of the resistor R48 is grounded, the other end of the resistor R60 is connected to pin 13 of the control chip U25, the other end of the resistor R60 is also connected to one end of the resistor R75, the other end of the resistor R75 is respectively connected to one end of the resistor R74 and the base of the transistor Q46, the other end of the resistor R74 is grounded, the emitter of the transistor Q46 is grounded, and the transistor Q4 The collector of the transistor Q6 is connected to one end of the resistor R68, the other end of the resistor R68 is respectively connected to one end of the resistor R73 and the base of the transistor Q45, the other end of the resistor R73 is connected to the emitter of the transistor Q45 and then connected to the voltage terminal MOS_VCC of the motor, the collector of the transistor Q45 is connected to one end of the resistor R49, the other end of the resistor R49 is respectively connected to the G electrode of the MOS transistor Q39 and one end of the resistor R51, the other end of the resistor R51 is grounded, the S electrode of the MOS transistor Q39 is grounded, and the S electrode of the MOS transistor Q42 is also connected to one end of the resistor R43. The other end of the resistor R43 is respectively connected to the G electrode of the MOS tube Q42 and one end of the resistor R44, the other end of the resistor R44 is respectively connected to the collector of the transistor Q40, the emitter of the transistor Q40 is grounded, the G electrode of the transistor Q40 is respectively connected to one end of the resistor R47 and one end of the resistor R59, the other end of the resistor R47 is grounded, the other end of the resistor R59 is respectively connected to one end of the resistor R81 and pin 13 of the control chip U26, the other end of the resistor R81 is respectively connected to the base of the transistor Q48 and one end of the resistor R80, the other end of the resistor R80 is respectively connected to the base of the transistor Q48 and one end of the resistor R80. One end is grounded, the emitter of the transistor Q48 is grounded, the collector of the transistor Q48 is connected to one end of the resistor R76, the other end of the resistor R76 is respectively connected to one end of the resistor R79 and the base of the transistor Q47, the other end of the resistor R79 is connected to the emitter of the transistor Q47 and then to the voltage terminal MOS_VCC of the motor, the collector of the transistor Q47 is connected to one end of the resistor R45, the other end of the resistor R45 is respectively connected to the G terminal of the MOS transistor Q41 and one end of the resistor R46, the other end of the resistor R46 is grounded, and the S terminal of the MOS transistor Q41 is grounded; The current monitoring unit and the forward and reverse drive circuit can be expanded according to the number of the motors; the control chips U25 and U26, the current monitoring unit and the forward and reverse drive circuit can be expanded according to the increase in the number of the motors.

6. A garbage classification system according to claim 2, characterized in that: The multi-way door opening feedback unit includes a control chip U31 and a door opening feedback circuit; the control chip U31 is used to transmit the door opening full monitoring signal detected by the door opening feedback circuit to the MCU unit; the door opening feedback circuit includes a first door opening feedback circuit, a second door opening feedback circuit, a third door opening feedback circuit, a fourth door opening feedback circuit, a fifth door opening feedback circuit, a sixth door opening feedback circuit, a seventh door opening feedback circuit, and an eighth door opening feedback circuit; the first door opening feedback circuit is used to detect the door opening full monitoring signal of the first automatic door, and the second door opening feedback circuit is used to detect the second door opening feedback circuit. the door-opening position monitoring signal of the automatic door, the third door-opening feedback circuit is used to detect the door-opening position monitoring signal of the third automatic door, the fourth door-opening feedback circuit is used to detect the door-opening position monitoring signal of the fourth automatic door, the fifth door-opening feedback circuit is used to detect the door-opening position monitoring signal of the fifth automatic door, the sixth door-opening feedback circuit is used to detect the door-opening position monitoring signal of the sixth automatic door, the seventh door-opening feedback circuit is used to detect the door-opening position monitoring signal of the seventh automatic door, and the eighth door-opening feedback circuit is used to detect the door-opening position monitoring signal of the eighth automatic door; The control chip U31 and the door opening feedback circuit can be expanded according to the increase in the number of automatic doors; Pin 3 of the control chip U31 is connected to the terminal OPEN, pins 11, 10, and 9 of the control chip U31 are connected to the terminal A, the terminal B, and the terminal C, respectively, and pin 6 of the control chip U31 is grounded; The first door opening feedback circuit includes an optocoupler U331-D, a light-emitting diode D401, and resistors R1261 and R1251; the optocoupler U331-D is used to convert the optical signal transmitted by the first door opening limit sensor into a current signal and transmit the current signal to the control chip U31; pin 4 of the optocoupler U331-D is connected to the signal output terminal IN_NPN_OPEN-1 of the first door opening limit sensor, pin 3 of the optocoupler U331-D is connected to one end of the resistor R1251, the other end of the resistor R1251 is connected to the power supply voltage VCC, pin 2 of the optocoupler U331-D is grounded, pin 1 of the optocoupler U331-D is connected to the cathode of the light-emitting diode D401, the anode of the light-emitting diode D401 is connected to one end of the resistor R1261, the other end of the resistor R1261 is grounded, and pin 1 of the optocoupler U331-D is also connected to pin 13 of the control chip U31; The second door opening feedback circuit includes an optocoupler U332-D, a light-emitting diode D402, and resistors R1262 and R1252; the optocoupler U332-D is used to convert the optical signal transmitted by the second door opening limit sensor into a current signal and transmit the current signal to the control chip U31; pin 4 of the optocoupler U332-D is connected to the signal output terminal IN_NPN_OPEN-2 of the second door opening limit sensor, pin 3 of the optocoupler U332-D is connected to one end of the resistor R1252, the other end of the resistor R1252 is connected to the power supply voltage VCC, pin 2 of the optocoupler U332-D is grounded, pin 1 of the optocoupler U332-D is connected to the cathode of the light-emitting diode D402, the anode of the light-emitting diode D402 is connected to one end of the resistor R1262, the other end of the resistor R1262 is grounded, and pin 1 of the optocoupler U332-D is also connected to pin 14 of the control chip U31; The third door opening feedback circuit includes an optocoupler U333-D, a light-emitting diode D403, and resistors R1263 and R1253; the optocoupler U333-D is used to convert the optical signal transmitted by the third door opening limit sensor into a current signal and transmit the current signal to the control chip U31; pin 4 of the optocoupler U333-D is connected to the signal output terminal IN_NPN_OPEN-3 of the third door opening limit sensor, pin 3 of the optocoupler U333-D is connected to one end of the resistor R1253, the other end of the resistor R1253 is connected to the power supply voltage VCC, pin 2 of the optocoupler U333-D is grounded, pin 1 of the optocoupler U333-D is connected to the cathode of the light-emitting diode D403, the anode of the light-emitting diode D403 is connected to one end of the resistor R1263, the other end of the resistor R1263 is grounded, and pin 1 of the optocoupler U333-D is also connected to pin 15 of the control chip U31; The fourth door opening feedback circuit includes an optocoupler U334-D, a light-emitting diode D404, and resistors R1264 and R1254; the optocoupler U334-D is used to convert the optical signal transmitted by the fourth door opening limit sensor into a current signal and transmit the current signal to the control chip U31; pin 4 of the optocoupler U334-D is connected to the signal output terminal IN_NPN_OPEN-4 of the fourth door opening limit sensor, pin 3 of the optocoupler U334-D is connected to one end of the resistor R1254, the other end of the resistor R1254 is connected to the power supply voltage VCC, pin 2 of the optocoupler U334-D is grounded, pin 1 of the optocoupler U334-D is connected to the cathode of the light-emitting diode D404, the anode of the light-emitting diode D404 is connected to one end of the resistor R1264, the other end of the resistor R1264 is grounded, and pin 1 of the optocoupler U334-D is also connected to pin 12 of the control chip U31; The fifth door opening feedback circuit includes an optocoupler U335-D, a light-emitting diode D405, and resistors R1265 and R1255; the optocoupler U335-D is used to convert the optical signal transmitted by the fifth door opening limit sensor into a current signal and transmit the current signal to the control chip U31; pin 4 of the optocoupler U335-D is connected to the signal output terminal IN_NPN_OPEN-5 of the fifth door opening limit sensor, pin 3 of the optocoupler U335-D is connected to one end of the resistor R1255, the other end of the resistor R1255 is connected to the power supply voltage VCC, pin 2 of the optocoupler U335-D is grounded, pin 1 of the optocoupler U335-D is connected to the cathode of the light-emitting diode D405, the anode of the light-emitting diode D405 is connected to one end of the resistor R1265, the other end of the resistor R1265 is grounded, and pin 1 of the optocoupler U335-D is also connected to pin 1 of the control chip U31; The sixth door opening feedback circuit includes an optocoupler U336-D, a light-emitting diode D406, and resistors R1266 and R1256; the optocoupler U336-D is used to convert the optical signal transmitted by the sixth door opening limit sensor into a current signal and transmit the current signal to the control chip U31; pin 4 of the optocoupler U336-D is connected to the signal output terminal IN_NPN_OPEN-6 of the sixth door opening limit sensor, pin 3 of the optocoupler U336-D is connected to one end of the resistor R1256, the other end of the resistor R1256 is connected to the power supply voltage VCC, pin 2 of the optocoupler U336-D is grounded, pin 1 of the optocoupler U336-D is connected to the cathode of the light-emitting diode D406, the anode of the light-emitting diode D406 is connected to one end of the resistor R1266, the other end of the resistor R1266 is grounded, and pin 1 of the optocoupler U336-D is also connected to pin 5 of the control chip U31; The seventh door opening feedback circuit includes an optocoupler U337-D, a light-emitting diode D407, and resistors R1267 and R1257; the optocoupler U337-D is used to convert the optical signal transmitted by the seventh door opening limit sensor into a current signal and transmit the current signal to the control chip U31; pin 4 of the optocoupler U337-D is connected to the signal output terminal IN_NPN_OPEN-7 of the seventh door opening limit sensor, pin 3 of the optocoupler U337-D is connected to one end of the resistor R1257, the other end of the resistor R1257 is connected to the power supply voltage VCC, pin 2 of the optocoupler U337-D is grounded, pin 1 of the optocoupler U337-D is connected to the cathode of the light-emitting diode D407, the anode of the light-emitting diode D407 is connected to one end of the resistor R1267, the other end of the resistor R1267 is grounded, and pin 1 of the optocoupler U337-D is also connected to pin 2 of the control chip U31; The eighth door opening feedback circuit includes an optocoupler U338-D, a light-emitting diode D408, and resistors R1268 and R1258; the optocoupler U338-D is used to convert the optical signal transmitted by the eighth door opening limit sensor into a current signal and transmit the current signal to the control chip U31; pin 4 of the optocoupler U338-D is connected to the signal output terminal IN_NPN_OPEN-8 of the eighth door opening limit sensor, pin 3 of the optocoupler U338-D is connected to one end of the resistor R1258, the other end of the resistor R1258 is connected to the power supply voltage VCC, pin 2 of the optocoupler U338-D is grounded, pin 1 of the optocoupler U338-D is connected to the cathode of the light-emitting diode D408, the anode of the light-emitting diode D408 is connected to one end of the resistor R1268, the other end of the resistor R1268 is grounded, and pin 1 of the optocoupler U338-D is also connected to pin 4 of the control chip U31; The multi-channel door closing feedback unit includes a control chip U32 and a door closing feedback circuit; the control chip U32 is used to transmit the door closing position monitoring signal detected by the door closing feedback circuit to the MCU unit; the door closing feedback circuit includes a first door closing feedback circuit, a second door closing feedback circuit, a third door closing feedback circuit, a fourth door closing feedback circuit, a fifth door closing feedback circuit, a sixth door closing feedback circuit, a seventh door closing feedback circuit, and an eighth door closing feedback circuit; the first door closing feedback circuit is used to detect the door closing position monitoring signal of the first automatic door, the second door closing feedback circuit is used to detect the second door closing feedback circuit the door-closing position monitoring signal of the automatic door, the third door-closing feedback circuit is used to detect the door-closing position monitoring signal of the third automatic door, the fourth door-closing feedback circuit is used to detect the door-closing position monitoring signal of the fourth automatic door, the fifth door-closing feedback circuit is used to detect the door-closing position monitoring signal of the fifth automatic door, the sixth door-closing feedback circuit is used to detect the door-closing position monitoring signal of the sixth automatic door, the seventh door-closing feedback circuit is used to detect the door-closing position monitoring signal of the seventh automatic door, and the eighth door-closing feedback circuit is used to detect the door-closing position monitoring signal of the eighth automatic door; The control chip U32 and the door closing feedback circuit can be expanded according to the increase in the number of automatic doors; Pin 3 of the control chip U32 is connected to the terminal SHUT, pins 11, 10, and 9 of the control chip U32 are connected to the terminal A, the terminal B, and the terminal C, respectively, and pin 6 of the control chip U32 is grounded; The first door closing feedback circuit includes an optocoupler U331-C, a light-emitting diode D41, and resistors R1281 and R1271; the optocoupler U331-C is used to convert the optical signal transmitted by the first door closing limit sensor into a current signal and transmit the current signal to the control chip U32; pin 4 of the optocoupler U331-C is connected to the signal output terminal IN_NPN_SHUT-1 of the first door closing limit sensor, pin 3 of the optocoupler U331-C is connected to one end of the resistor R1271, the other end of the resistor R1271 is connected to the power supply voltage VCC, pin 2 of the optocoupler U331-C is grounded, pin 1 of the optocoupler U331-C is connected to the cathode of the light-emitting diode D41, the anode of the light-emitting diode D41 is connected to one end of the resistor R1281, the other end of the resistor R1281 is grounded, and pin 1 of the optocoupler U331-C is also connected to pin 13 of the control chip U32; The second door closing feedback circuit includes an optocoupler U332-C, a light-emitting diode D42, and resistors R1282 and R1272; the optocoupler U332-C is used to convert the optical signal transmitted by the second door closing limit sensor into a current signal and transmit the current signal to the control chip U32; pin 4 of the optocoupler U332-C is connected to the signal output terminal IN_NPN_SHUT-2 of the second door closing limit sensor, pin 3 of the optocoupler U332-C is connected to one end of the resistor R1272, the other end of the resistor R1272 is connected to the power supply voltage VCC, pin 2 of the optocoupler U332-C is grounded, pin 1 of the optocoupler U332-C is connected to the cathode of the light-emitting diode D42, the anode of the light-emitting diode D42 is connected to one end of the resistor R1282, the other end of the resistor R1282 is grounded, and pin 1 of the optocoupler U332-C is also connected to pin 14 of the control chip U32; The third door closing feedback circuit includes an optocoupler U333-C, a light-emitting diode D43, and resistors R1283 and R1273; the optocoupler U333-C is used to convert the optical signal transmitted by the third door closing limit sensor into a current signal and transmit the current signal to the control chip U32; pin 4 of the optocoupler U333-C is connected to the signal output terminal IN_NPN_SHUT-3 of the third door closing limit sensor, pin 3 of the optocoupler U333-C is connected to one end of the resistor R1273, the other end of the resistor R1273 is connected to the power supply voltage VCC, pin 2 of the optocoupler U333-C is grounded, pin 1 of the optocoupler U333-C is connected to the cathode of the light-emitting diode D43, the anode of the light-emitting diode D43 is connected to one end of the resistor R1283, the other end of the resistor R1283 is grounded, and pin 1 of the optocoupler U333-C is also connected to pin 15 of the control chip U32; The fourth door closing feedback circuit includes an optocoupler U334-C, a light-emitting diode D44, and resistors R1284 and R1274; the optocoupler U334-C is used to convert the optical signal transmitted by the fourth door closing limit sensor into a current signal and transmit the current signal to the control chip U32; pin 4 of the optocoupler U334-C is connected to the signal output terminal IN_NPN_SHUT-4 of the fourth door closing limit sensor, pin 3 of the optocoupler U334-C is connected to one end of the resistor R1274, the other end of the resistor R1274 is connected to the power supply voltage VCC, pin 2 of the optocoupler U334-C is grounded, pin 1 of the optocoupler U334-C is connected to the cathode of the light-emitting diode D44, the anode of the light-emitting diode D44 is connected to one end of the resistor R1284, the other end of the resistor R1284 is grounded, and pin 1 of the optocoupler U334-C is also connected to pin 12 of the control chip U32; The fifth door closing feedback circuit includes an optocoupler U335-C, a light-emitting diode D45, and resistors R1285 and R1275; the optocoupler U335-C is used to convert the optical signal transmitted by the fifth door closing limit sensor into a current signal and transmit the current signal to the control chip U32; pin 4 of the optocoupler U335-C is connected to the signal output terminal IN_NPN_SHUT-5 of the fifth door closing limit sensor, pin 3 of the optocoupler U335-C is connected to one end of the resistor R1275, the other end of the resistor R1275 is connected to the power supply voltage VCC, pin 2 of the optocoupler U335-C is grounded, pin 1 of the optocoupler U335-C is connected to the cathode of the light-emitting diode D45, the anode of the light-emitting diode D45 is connected to one end of the resistor R1285, the other end of the resistor R1285 is grounded, and pin 1 of the optocoupler U335-C is also connected to pin 1 of the control chip U32; The sixth door closing feedback circuit includes an optocoupler U336-C, a light-emitting diode D46, and resistors R1286 and R1276; the optocoupler U336-C is used to convert the optical signal transmitted by the sixth door closing limit sensor into a current signal and transmit the current signal to the control chip U32; pin 4 of the optocoupler U336-C is connected to the signal output terminal IN_NPN_SHUT-6 of the sixth door closing limit sensor, pin 3 of the optocoupler U336-C is connected to one end of the resistor R1276, the other end of the resistor R1276 is connected to the power supply voltage VCC, pin 2 of the optocoupler U336-C is grounded, pin 1 of the optocoupler U336-C is connected to the cathode of the light-emitting diode D46, the anode of the light-emitting diode D46 is connected to one end of the resistor R1286, the other end of the resistor R1286 is grounded, and pin 1 of the optocoupler U336-C is also connected to pin 5 of the control chip U32; The seventh door closing feedback circuit includes an optocoupler U337-C, a light-emitting diode D47, and resistors R1287 and R1277; the optocoupler U337-C is used to convert the optical signal transmitted by the seventh door closing limit sensor into a current signal and transmit the current signal to the control chip U32; pin 4 of the optocoupler U337-C is connected to the signal output terminal IN_NPN_SHUT-7 of the seventh door closing limit sensor, pin 3 of the optocoupler U337-C is connected to one end of the resistor R1277, the other end of the resistor R1277 is connected to the power supply voltage VCC, pin 2 of the optocoupler U337-C is grounded, pin 1 of the optocoupler U337-C is connected to the cathode of the light-emitting diode D47, the anode of the light-emitting diode D47 is connected to one end of the resistor R1287, the other end of the resistor R1287 is grounded, and pin 1 of the optocoupler U337-C is also connected to pin 2 of the control chip U32; The eighth door closing feedback circuit includes an optocoupler U338-C, a light-emitting diode D48, and resistors R1288 and R1278; the optocoupler U338-C is used to convert the optical signal transmitted by the eighth door closing limit sensor into a current signal and transmit the current signal to the control chip U32; pin 4 of the optocoupler U338-C is connected to the signal output terminal IN_NPN_SHUT-8 of the eighth door closing limit sensor, pin 3 of the optocoupler U338-C is connected to one end of the resistor R1278, the other end of the resistor R1278 is connected to the power supply voltage VCC, pin 2 of the optocoupler U338-C is grounded, pin 1 of the optocoupler U338-C is connected to the cathode of the light-emitting diode D48, the anode of the light-emitting diode D48 is connected to one end of the resistor R1288, the other end of the resistor R1288 is grounded, and pin 1 of the optocoupler U338-C is also connected to pin 4 of the control chip U32.

7. A garbage classification system according to claim 2, characterized in that: The multi-channel anti-hand pinching feedback unit includes a control chip U22 and a hand pinching feedback circuit; the control chip U22 is used to transmit the door object monitoring signal detected by the hand pinching feedback circuit to the MCU unit; the hand pinching feedback circuit includes a first hand pinching feedback circuit, a second hand pinching feedback circuit, a third hand pinching feedback circuit, a fourth hand pinching feedback circuit, a fifth hand pinching feedback circuit, a sixth hand pinching feedback circuit, a seventh hand pinching feedback circuit, and an eighth hand pinching feedback circuit; the first hand pinching feedback circuit is used to detect the door object monitoring signal of the first automatic door, and the second hand pinching feedback circuit is used to detect the doorway object monitoring signal of the second automatic door, the third hand-pinching feedback circuit is used to detect the doorway object monitoring signal of the third automatic door, the fourth hand-pinching feedback circuit is used to detect the doorway object monitoring signal of the fourth automatic door, the fifth hand-pinching feedback circuit is used to detect the doorway object monitoring signal of the fifth automatic door, the sixth hand-pinching feedback circuit is used to detect the doorway object monitoring signal of the sixth automatic door, the seventh hand-pinching feedback circuit is used to detect the doorway object monitoring signal of the seventh automatic door, and the eighth hand-pinching feedback circuit is used to detect the doorway object monitoring signal of the eighth automatic door; The control chip U22 and the hand-gripping feedback circuit can be expanded according to the increase in the number of automatic doors; Pin 3 of the control chip U22 is connected to the terminal RASTER, pins 11, 10, and 9 of the control chip U22 are connected to the terminal A, the terminal B, and the terminal C, respectively, and pin 6 of the control chip U22 is grounded; The first gripper feedback circuit includes an optocoupler U491-D, a light-emitting diode D571, and resistors R1561 and R1551; the optocoupler U491-D is used to convert the optical signal transmitted by the first drop port grating into a current signal and transmit the current signal to the control chip U22; pin 4 of the optocoupler U491-D is connected to the signal output terminal IN_NPN_RASTER-1 of the first drop port grating, pin 3 of the optocoupler U491-D is connected to one end of the resistor R1551, the other end of the resistor R1551 is connected to the power supply voltage VCC, pin 2 of the optocoupler U491-D is grounded, pin 1 of the optocoupler U491-D is connected to the cathode of the light-emitting diode D571, the anode of the light-emitting diode D571 is connected to one end of the resistor R1561, the other end of the resistor R1561 is grounded, and pin 1 of the optocoupler U491-D is also connected to pin 13 of the control chip U22; The second gripper feedback circuit includes an optocoupler U492-D, a light-emitting diode D572, and resistors R1562 and R1552; the optocoupler U492-D is used to convert the optical signal transmitted by the second drop port grating into a current signal and transmit the current signal to the control chip U22; pin 4 of the optocoupler U492-D is connected to the signal output terminal IN_NPN_RASTER-2 of the second drop port grating, pin 3 of the optocoupler U492-D is connected to one end of the resistor R1552, the other end of the resistor R1552 is connected to the power supply voltage VCC, pin 2 of the optocoupler U492-D is grounded, pin 1 of the optocoupler U492-D is connected to the cathode of the light-emitting diode D572, the anode of the light-emitting diode D572 is connected to one end of the resistor R1562, the other end of the resistor R1562 is grounded, and pin 1 of the optocoupler U492-D is also connected to pin 14 of the control chip U22; The third gripper feedback circuit includes an optocoupler U493-D, a light-emitting diode D573, and resistors R1563 and R1553; the optocoupler U493-D is used to convert the optical signal transmitted by the third drop port grating into a current signal and transmit the current signal to the control chip U22; pin 4 of the optocoupler U493-D is connected to the signal output terminal IN_NPN_RASTER-3 of the third drop port grating, pin 3 of the optocoupler U493-D is connected to one end of the resistor R1553, the other end of the resistor R1553 is connected to the power supply voltage VCC, pin 2 of the optocoupler U493-D is grounded, pin 1 of the optocoupler U493-D is connected to the cathode of the light-emitting diode D573, the anode of the light-emitting diode D573 is connected to one end of the resistor R1563, the other end of the resistor R1563 is grounded, and pin 1 of the optocoupler U493-D is also connected to pin 15 of the control chip U22; The fourth gripper feedback circuit includes an optocoupler U494-D, a light-emitting diode D574, and resistors R1564 and R1554; the optocoupler U494-D is used to convert the optical signal transmitted by the fourth drop port grating into a current signal and transmit the current signal to the control chip U22; pin 4 of the optocoupler U494-D is connected to the signal output terminal IN_NPN_RASTER-4 of the fourth drop port grating, pin 3 of the optocoupler U494-D is connected to one end of the resistor R1554, the other end of the resistor R1554 is connected to the power supply voltage VCC, pin 2 of the optocoupler U494-D is grounded, pin 1 of the optocoupler U494-D is connected to the cathode of the light-emitting diode D574, the anode of the light-emitting diode D574 is connected to one end of the resistor R1564, the other end of the resistor R1564 is grounded, and pin 1 of the optocoupler U494-D is also connected to pin 12 of the control chip U22; The fifth gripper feedback circuit includes an optocoupler U495-D, a light-emitting diode D575, and resistors R1565 and R1555; the optocoupler U495-D is used to convert the optical signal transmitted by the fifth drop port grating into a current signal and transmit the current signal to the control chip U22; pin 4 of the optocoupler U495-D is connected to the signal output terminal IN_NPN_RASTER-5 of the fifth drop port grating, pin 3 of the optocoupler U495-D is connected to one end of the resistor R1555, the other end of the resistor R1555 is connected to the power supply voltage VCC, pin 2 of the optocoupler U495-D is grounded, pin 1 of the optocoupler U495-D is connected to the cathode of the light-emitting diode D575, the anode of the light-emitting diode D575 is connected to one end of the resistor R1565, the other end of the resistor R1565 is grounded, and pin 1 of the optocoupler U495-D is also connected to pin 1 of the control chip U22; The sixth gripper feedback circuit includes an optocoupler U496-D, a light-emitting diode D576, and resistors R1566 and R1556; the optocoupler U496-D is used to convert the optical signal transmitted by the sixth drop-in port grating into a current signal and transmit the current signal to the control chip U22; pin 4 of the optocoupler U496-D is connected to the signal output terminal IN_NPN_RASTER-6 of the sixth drop-in port grating, pin 3 of the optocoupler U496-D is connected to one end of the resistor R1556, the other end of the resistor R1556 is connected to the power supply voltage VCC, pin 2 of the optocoupler U496-D is grounded, pin 1 of the optocoupler U496-D is connected to the cathode of the light-emitting diode D576, the anode of the light-emitting diode D576 is connected to one end of the resistor R1566, the other end of the resistor R1566 is grounded, and pin 1 of the optocoupler U496-D is also connected to pin 5 of the control chip U22; The seventh gripper feedback circuit includes an optocoupler U497-D, a light-emitting diode D577, and resistors R1567 and R1557; the optocoupler U497-D is used to convert the optical signal transmitted by the seventh drop-in port grating into a current signal and transmit the current signal to the control chip U22; pin 4 of the optocoupler U497-D is connected to the signal output terminal IN_NPN_RASTER-7 of the seventh drop-in port grating, pin 3 of the optocoupler U497-D is connected to one end of the resistor R1557, the other end of the resistor R1557 is connected to the power supply voltage VCC, pin 2 of the optocoupler U497-D is grounded, pin 1 of the optocoupler U497-D is connected to the cathode of the light-emitting diode D577, the anode of the light-emitting diode D577 is connected to one end of the resistor R1567, the other end of the resistor R1567 is grounded, and pin 1 of the optocoupler U497-D is also connected to pin 2 of the control chip U22; The eighth gripper feedback circuit includes an optocoupler U498-D, a light-emitting diode D578, and resistors R1568 and R1558; the optocoupler U498-D is used to convert the optical signal transmitted by the eighth delivery port grating into a current signal and transmit the current signal to the control chip U22; pin 4 of the optocoupler U498-D is connected to the signal output terminal IN_NPN_RASTER-8 of the eighth delivery port grating, pin 3 of the optocoupler U498-D is connected to one end of the resistor R1558, the other end of the resistor R1558 is connected to the power supply voltage VCC, pin 2 of the optocoupler U498-D is grounded, pin 1 of the optocoupler U498-D is connected to the cathode of the light-emitting diode D578, the anode of the light-emitting diode D578 is connected to one end of the resistor R1568, the other end of the resistor R1568 is grounded, and pin 1 of the optocoupler U498-D is also connected to pin 4 of the control chip U22.

8. A garbage classification system according to claim 2, characterized in that: The multi-channel full overflow feedback unit includes a control chip U34 and a full overflow feedback circuit; the control chip U34 is used to transmit the full monitoring signal detected by the full overflow feedback circuit to the MCU unit; the full overflow feedback circuit includes a first full overflow feedback circuit, a second full overflow feedback circuit, a third full overflow feedback circuit, a fourth full overflow feedback circuit, a fifth full overflow feedback circuit, a sixth full overflow feedback circuit, a seventh full overflow feedback circuit, and an eighth full overflow feedback circuit; the first full overflow feedback circuit is used to detect the full monitoring signal of the first trash can mouth, the second full overflow feedback circuit is used to detect the full monitoring signal of the second trash can mouth the overflow feedback circuit is used to detect a full monitoring signal from the second trash can opening, the third full overflow feedback circuit is used to detect a full monitoring signal from the third trash can opening, the fourth full overflow feedback circuit is used to detect a full monitoring signal from the fourth trash can opening, the fifth full overflow feedback circuit is used to detect a full monitoring signal from the fifth trash can opening, the sixth full overflow feedback circuit is used to detect a full monitoring signal from the sixth trash can opening, the seventh full overflow feedback circuit is used to detect a full monitoring signal from the seventh trash can opening, and the eighth full overflow feedback circuit is used to detect a full monitoring signal from the eighth trash can opening; The control chip U34 and the full overflow feedback circuit can be expanded according to the increase in the number of the trash can openings; Pin 3 of the control chip U34 is connected to the terminal OVERFLOW, pins 11, 10, and 9 of the control chip U34 are connected to terminal A, terminal B, and terminal C, respectively, and pin 6 of the control chip U34 is grounded; The first full overflow feedback circuit includes an optocoupler U491-C, a light-emitting diode D581, and resistors R1581 and R1571; the optocoupler U491-C is used to convert the optical signal transmitted by the first trash can opening grating into a current signal and transmit the current signal to the control chip U34; pin 4 of the optocoupler U491-C is connected to the signal output terminal IN_NPNOVERFLOW-1 of the first trash can opening grating, pin 3 of the optocoupler U491-C is connected to one end of the resistor R1571, the other end of the resistor R1571 is connected to the power supply voltage VCC, pin 2 of the optocoupler U491-C is grounded, pin 1 of the optocoupler U491-C is connected to the cathode of the light-emitting diode D581, the anode of the light-emitting diode D581 is connected to one end of the resistor R1581, the other end of the resistor R1581 is grounded, and pin 1 of the optocoupler U491-C is also connected to pin 13 of the control chip U34; The second full overflow feedback circuit includes an optocoupler U492-C, a light-emitting diode D582, and resistors R1582 and R1572; the optocoupler U492-C is used to convert the optical signal transmitted by the second trash can opening grating into a current signal and transmit the current signal to the control chip U34; pin 4 of the optocoupler U492-C is connected to the signal output terminal IN_NPNOVERFLOW-2 of the second trash can opening grating, pin 3 of the optocoupler U492-C is connected to one end of the resistor R1572, the other end of the resistor R1572 is connected to the power supply voltage VCC, pin 2 of the optocoupler U492-C is grounded, pin 1 of the optocoupler U492-C is connected to the cathode of the light-emitting diode D582, the anode of the light-emitting diode D582 is connected to one end of the resistor R1582, the other end of the resistor R1582 is grounded, and pin 1 of the optocoupler U492-C is also connected to pin 14 of the control chip U34; The third full overflow feedback circuit includes an optocoupler U493-C, a light-emitting diode D583, and resistors R1583 and R1573; the optocoupler U493-C is used to convert the optical signal transmitted by the third trash can opening grating into a current signal and transmit the current signal to the control chip U34; pin 4 of the optocoupler U493-C is connected to the signal output terminal IN_NPNOVERFLOW-3 of the third trash can opening grating, pin 3 of the optocoupler U493-C is connected to one end of the resistor R1573, the other end of the resistor R1573 is connected to the power supply voltage VCC, pin 2 of the optocoupler U493-C is grounded, pin 1 of the optocoupler U493-C is connected to the cathode of the light-emitting diode D583, the anode of the light-emitting diode D583 is connected to one end of the resistor R1583, the other end of the resistor R1583 is grounded, and pin 1 of the optocoupler U493-C is also connected to pin 15 of the control chip U34; The fourth full overflow feedback circuit includes an optocoupler U494-C, a light-emitting diode D584, and resistors R1584 and R1574; the optocoupler U494-C is used to convert the optical signal transmitted by the fourth trash can opening grating into a current signal and transmit the current signal to the control chip U34; pin 4 of the optocoupler U494-C is connected to the signal output terminal IN_NPNOVERFLOW-4 of the fourth trash can opening grating, pin 3 of the optocoupler U494-C is connected to one end of the resistor R1574, the other end of the resistor R1574 is connected to the power supply voltage VCC, pin 2 of the optocoupler U494-C is grounded, pin 1 of the optocoupler U494-C is connected to the cathode of the light-emitting diode D584, the anode of the light-emitting diode D584 is connected to one end of the resistor R1584, the other end of the resistor R1584 is grounded, and pin 1 of the optocoupler U494-C is also connected to pin 12 of the control chip U34; The fifth full overflow feedback circuit includes an optocoupler U495-C, a light-emitting diode D585, and resistors R1585 and R1575; the optocoupler U495-C is used to convert the optical signal transmitted by the fifth trash can opening grating into a current signal and transmit the current signal to the control chip U34; pin 4 of the optocoupler U495-C is connected to the signal output terminal IN_NPNOVERFLOW-5 of the fifth trash can opening grating, pin 3 of the optocoupler U495-C is connected to one end of the resistor R1575, the other end of the resistor R1575 is connected to the power supply voltage VCC, pin 2 of the optocoupler U495-C is grounded, pin 1 of the optocoupler U495-C is connected to the cathode of the light-emitting diode D585, the anode of the light-emitting diode D585 is connected to one end of the resistor R1585, the other end of the resistor R1585 is grounded, and pin 1 of the optocoupler U495-C is also connected to pin 1 of the control chip U34; The sixth full overflow feedback circuit includes an optocoupler U496-C, a light-emitting diode D586, and resistors R1586 and R1576; the optocoupler U496-C is used to convert the optical signal transmitted by the sixth trash can opening grating into a current signal and transmit the current signal to the control chip U34; pin 4 of the optocoupler U496-C is connected to the signal output terminal IN_NPNOVERFLOW-6 of the sixth trash can opening grating, pin 3 of the optocoupler U496-C is connected to one end of the resistor R1576, the other end of the resistor R1576 is connected to the power supply voltage VCC, pin 2 of the optocoupler U496-C is grounded, pin 1 of the optocoupler U496-C is connected to the cathode of the light-emitting diode D586, the anode of the light-emitting diode D586 is connected to one end of the resistor R1586, the other end of the resistor R1586 is grounded, and pin 1 of the optocoupler U496-C is also connected to pin 5 of the control chip U34; The seventh full overflow feedback circuit includes an optocoupler U497-C, a light-emitting diode D587, and resistors R1587 and R1577; the optocoupler U497-C is used to convert the optical signal transmitted by the seventh trash can opening grating into a current signal and transmit the current signal to the control chip U34; pin 4 of the optocoupler U497-C is connected to the signal output terminal IN_NPNOVERFLOW-7 of the seventh trash can opening grating, pin 3 of the optocoupler U497-C is connected to one end of the resistor R1577, the other end of the resistor R1577 is connected to the power supply voltage VCC, pin 2 of the optocoupler U497-C is grounded, pin 1 of the optocoupler U497-C is connected to the cathode of the light-emitting diode D587, the anode of the light-emitting diode D587 is connected to one end of the resistor R1587, the other end of the resistor R1587 is grounded, and pin 1 of the optocoupler U497-C is also connected to pin 2 of the control chip U34; The eighth full overflow feedback circuit includes an optocoupler U498-C, a light-emitting diode D588, and resistors R1588 and R1578; the optocoupler U498-C is used to convert the optical signal transmitted by the eighth trash can mouth grating into a current signal and transmit the current signal to the control chip U34; pin 4 of the optocoupler U498-C is connected to the signal output terminal IN_NPNOVERFLOW-8 of the eighth trash can mouth grating, pin 3 of the optocoupler U498-C is connected to one end of the resistor R1578, the other end of the resistor R1578 is connected to the power supply voltage VCC, pin 2 of the optocoupler U498-C is grounded, pin 1 of the optocoupler U498-C is connected to the cathode of the light-emitting diode D588, the anode of the light-emitting diode D588 is connected to one end of the resistor R1588, the other end of the resistor R1588 is grounded, and pin 1 of the optocoupler U498-C is also connected to pin 4 of the control chip U34.

9. A garbage classification system according to claim 1, characterized in that: The control chip U33 and the human body proximity feedback circuit can be expanded according to the increase in the number of the delivery ports; Pin 3 of the control chip U33 is connected to the terminal near, pins 11, 10, and 9 of the control chip U33 are connected to the terminal A, the terminal B, and the terminal C respectively, and pin 6 of the control chip U33 is grounded; The first human body proximity feedback circuit includes an optocoupler U481-C, a light-emitting diode D481, and resistors R1481 and R2481; the optocoupler U481-C is used to convert the optical signal transmitted by the first human body proximity sensor into a current signal and transmit the current signal to the control chip U33; pin 4 of the optocoupler U481-C is connected to the signal output terminal IN_NPNNER-1 of the first human body proximity sensor, pin 3 of the optocoupler U481-C is connected to one end of the resistor R2481, the other end of the resistor R2481 is connected to the power supply voltage VCC, pin 2 of the optocoupler U481-C is grounded, pin 1 of the optocoupler U481-C is connected to the cathode of the light-emitting diode D481, the anode of the light-emitting diode D481 is connected to one end of the resistor R1481, the other end of the resistor R1481 is grounded, and pin 1 of the optocoupler U481-C is also connected to pin 13 of the control chip U33; The second human body proximity feedback circuit includes an optocoupler U482-C, a light-emitting diode D482, and resistors R1482 and R2482; the optocoupler U482-C is used to convert the optical signal transmitted by the second human body proximity sensor into a current signal and transmit the current signal to the control chip U33; pin 4 of the optocoupler U482-C is connected to the signal output terminal IN_NPNNER-2 of the second human body proximity sensor, pin 3 of the optocoupler U482-C is connected to one end of the resistor R2482, the other end of the resistor R2482 is connected to the power supply voltage VCC, pin 2 of the optocoupler U482-C is grounded, pin 1 of the optocoupler U482-C is connected to the cathode of the light-emitting diode D482, the anode of the light-emitting diode D482 is connected to one end of the resistor R1482, the other end of the resistor R1482 is grounded, and pin 1 of the optocoupler U482-C is also connected to pin 14 of the control chip U33; The third human body proximity feedback circuit includes an optocoupler U483-C, a light-emitting diode D483, and resistors R1483 and R2483; the optocoupler U483-C is used to convert the optical signal transmitted by the third human body proximity sensor into a current signal and transmit the current signal to the control chip U33; pin 4 of the optocoupler U483-C is connected to the signal output terminal IN_NPNNER-3 of the third human body proximity sensor, pin 3 of the optocoupler U483-C is connected to one end of the resistor R2483, the other end of the resistor R2483 is connected to the power supply voltage VCC, pin 2 of the optocoupler U483-C is grounded, pin 1 of the optocoupler U483-C is connected to the cathode of the light-emitting diode D483, the anode of the light-emitting diode D483 is connected to one end of the resistor R1483, the other end of the resistor R1483 is grounded, and pin 1 of the optocoupler U483-C is also connected to pin 15 of the control chip U33; The fourth human body proximity feedback circuit includes an optocoupler U484-C, a light-emitting diode D484, and resistors R1484 and R2484; the optocoupler U484-C is used to convert the optical signal transmitted by the fourth human body proximity sensor into a current signal and transmit the current signal to the control chip U33; pin 4 of the optocoupler U484-C is connected to the signal output terminal IN_NPNNER-4 of the fourth human body proximity sensor, pin 3 of the optocoupler U484-C is connected to one end of the resistor R2484, the other end of the resistor R2484 is connected to the power supply voltage VCC, pin 2 of the optocoupler U484-C is grounded, pin 1 of the optocoupler U484-C is connected to the cathode of the light-emitting diode D484, the anode of the light-emitting diode D484 is connected to one end of the resistor R1484, the other end of the resistor R1484 is grounded, and pin 1 of the optocoupler U484-C is also connected to pin 12 of the control chip U33; The fifth human body proximity feedback circuit includes an optocoupler U485-C, a light-emitting diode D485, and resistors R1485 and R2485; the optocoupler U485-C is used to convert the optical signal transmitted by the fifth human body proximity sensor into a current signal and transmit the current signal to the control chip U33; pin 4 of the optocoupler U485-C is connected to the signal output terminal IN_NPNNER-5 of the fifth human body proximity sensor, pin 3 of the optocoupler U485-C is connected to one end of the resistor R2485, the other end of the resistor R2485 is connected to the power supply voltage VCC, pin 2 of the optocoupler U485-C is grounded, pin 1 of the optocoupler U485-C is connected to the cathode of the light-emitting diode D485, the anode of the light-emitting diode D485 is connected to one end of the resistor R1485, the other end of the resistor R1485 is grounded, and pin 1 of the optocoupler U485-C is also connected to pin 1 of the control chip U33; The sixth human body proximity feedback circuit includes an optocoupler U486-C, a light-emitting diode D486, and resistors R1486 and R2486; the optocoupler U486-C is used to convert the optical signal transmitted by the sixth human body proximity sensor into a current signal and transmit the current signal to the control chip U33; pin 4 of the optocoupler U486-C is connected to the signal output terminal IN_NPNNER-6 of the sixth human body proximity sensor, pin 3 of the optocoupler U486-C is connected to one end of the resistor R2486, the other end of the resistor R2486 is connected to the power supply voltage VCC, pin 2 of the optocoupler U486-C is grounded, pin 1 of the optocoupler U486-C is connected to the cathode of the light-emitting diode D486, the anode of the light-emitting diode D486 is connected to one end of the resistor R1486, the other end of the resistor R1486 is grounded, and pin 1 of the optocoupler U486-C is also connected to pin 5 of the control chip U33; The seventh human body proximity feedback circuit includes an optocoupler U487-C, a light-emitting diode D487, and resistors R1487 and R2487; the optocoupler U487-C is used to convert the optical signal transmitted by the seventh human body proximity sensor into a current signal and transmit the current signal to the control chip U33; pin 4 of the optocoupler U487-C is connected to the signal output terminal IN_NPNNER-7 of the seventh human body proximity sensor, pin 3 of the optocoupler U487-C is connected to one end of the resistor R2487, the other end of the resistor R2487 is connected to the power supply voltage VCC, pin 2 of the optocoupler U487-C is grounded, pin 1 of the optocoupler U487-C is connected to the cathode of the light-emitting diode D487, the anode of the light-emitting diode D487 is connected to one end of the resistor R1487, the other end of the resistor R1487 is grounded, and pin 1 of the optocoupler U487-C is also connected to pin 2 of the control chip U33; The eighth human body proximity feedback circuit includes an optocoupler U488-C, a light-emitting diode D488, and resistors R1488 and R2488; the optocoupler U488-C is used to convert the optical signal transmitted by the eighth human body proximity sensor into a current signal and transmit the current signal to the control chip U33; pin 4 of the optocoupler U488-C is connected to the signal output terminal IN_NPNNER-8 of the eighth human body proximity sensor, pin 3 of the optocoupler U488-C is connected to one end of the resistor R2488, the other end of the resistor R2488 is connected to the power supply voltage VCC, pin 2 of the optocoupler U488-C is grounded, pin 1 of the optocoupler U488-C is connected to the cathode of the light-emitting diode D488, the anode of the light-emitting diode D488 is connected to one end of the resistor R1488, the other end of the resistor R1488 is grounded, and pin 1 of the optocoupler U488-C is also connected to pin 4 of the control chip U33.

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