CN210351728U

CN210351728U - Wired remote multi-channel intelligent dimming control system for LED industrial illumination

Info

Publication number: CN210351728U
Application number: CN201920570101.0U
Authority: CN
Inventors: 金松山
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-04-17
Anticipated expiration: 2029-04-24

Abstract

The utility model discloses a wired long-range multichannel intelligence dimming control system of LED industrial lighting, including microcontroller module, PWM duty ratio display module, timing display module, man-machine interface module, PWM open-leakage output module, PWM opto-coupler receiving module and power adapter; the microcontroller module is used for displaying a PWM duty ratio value on the PWM duty ratio display module according to PWM data which is processed by intelligent conversion according to instruction information sent by the human-computer interface module, and controlling a plurality of LED driving power supplies contained in the PWM optical coupling receiving module through the PWM leakage-opening output module and the PWM optical coupling receiving module according to the PWM duty ratio value and a control instruction, so that dimming or lamp turning-off of a plurality of LED lamps is realized. The advantage is, the utility model has the advantages of the remote transmission of PWM signal is reliable stable, and not disturbed, lamps and lanterns coverage is wide, and multichannel is adjusted luminance and is turn off the lamp turn-offed control system and adjust luminance through the digital control mode of intelligence, can satisfy and be fit for industry or commercial intelligent energy-conserving lighting needs.

Description

Wired remote multi-channel intelligent dimming control system for LED industrial illumination

Technical Field

The system belongs to the field of LED illumination, and particularly relates to a wired remote multi-channel intelligent dimming control system for LED industrial illumination.

Background

LED lighting technology has evolved from landscape lighting, roadway lighting, to the areas of interior lighting, commercial lighting, and industrial lighting for residential buildings. Meanwhile, wireless technologies such as zigbee and Z-wave are increasingly common in household lighting intellectualization. But the product technology in the aspect of industrial lighting intellectualization is less.

Industrial lighting environments are relatively harsh. For example, the heights and the intervals of various mechanical equipment are different, and wireless intelligent control equipment is not easy to install due to various factors such as a steel bar structure of a ceiling pendant lamp environment, unstable temperature and humidity and the like.

Especially, in an industrial environment, the lighting wireless control signal is easily affected by the interference of an object in the transmission process, and the wireless control equipment cannot normally operate due to the problems of large signal attenuation and the like.

The wired shielding transmission has the characteristics of long transmission distance, small signal attenuation, difficult interference, wide coverage range, low power consumption, stability, reliability and the like, and is suitable for being used as a wired remote intelligent dimming turn-off control system for LED industrial illumination.

The wired remote multi-channel intelligent dimming control system for LED industrial illumination remotely transmits PWM dimming switch control signals in a wired transmission mode of a coaxial cable, and is an intelligent dimming turn-off control system specially designed for industrial or commercial LED illumination.

The lamp is characterized in that the installation density of the lamps is properly adjusted according to regions, and the on-off or brightness of the lamps in each region is controlled according to the needs, so that the electric energy consumption is greatly saved. Meanwhile, the traditional illumination mode that the lamp is always fully lighted and unnecessary power consumption is wasted can be changed. Therefore, the heat generation of the LED lamp can be reduced to accelerate aging, and the service life of the LED lamp is prolonged. The LED illumination lamp also has the characteristics of long PWM signal transmission distance, difficult interference, high reliability, long service life of equipment and the like, and can meet and be suitable for industrial or commercial intelligent energy-saving illumination requirements.

Disclosure of Invention

In order to overcome prior art's not enough and solve above-mentioned industry LED lighting network's energy saving and consumption reduction and the life of extension LED lamps and lanterns and the wired long-range multichannel intelligent dimming control of LED lamps and lanterns etc, the utility model provides a wired long-range multichannel intelligent dimming control system of LED industry illumination.

In order to achieve the above purpose, the technical scheme of the utility model is that: the wired remote multi-channel intelligent dimming control system for the LED industrial illumination comprises a microcontroller module, a PWM duty ratio display module, a timing display module, a human-computer interface module, a PWM leakage output module, a PWM optocoupler receiving module and a power adapter; the microcontroller module is used for displaying a PWM duty ratio value on the PWM duty ratio display module according to PWM data which is processed by intelligent conversion according to instruction information sent by the human-computer interface module, and controlling a plurality of LED driving power supplies contained in the PWM optical coupling receiving module through the PWM leakage-opening output module and the PWM optical coupling receiving module according to the PWM duty ratio value and a control instruction, so that dimming or lamp turning-off of a plurality of LED lamps is realized.

Preferably, the human-computer interface module comprises a PWM duty ratio selection key module, a PWM duty ratio locking key module, a timing setting key module and a timing locking key module; the man-machine interface module sets PWM duty ratio, timed light-off time and display on the parameters of the microcontroller module; the PWM duty ratio selection key module command can only generate PWM signals of 1 channel, and also can generate PWM signals of 2 or 3 channels, and the corresponding duty ratios can be the same or different PWM signals; the PWM frequencies of the 3 channels are the same and are fixed frequencies, and the frequencies are selected within the range of 100 Hz-600 Hz; the duty ratio setting range is 0% -100%; after the setting of the PWM duty ratio value and the timing time is determined, the PWM duty ratio locking key module and the timing setting key module can be used for locking respectively; or when no instruction is given to modify the set and determined PWM duty ratio value and the timing time within 5 minutes, the PWM duty ratio value and the timing time are naturally locked and unchanged when 5 minutes come; the timing time is set within 1-24 hours at will; when the timing locking key module is pressed for 2 seconds, the working state of the microcontroller module before timing shutdown can be restored.

Preferably, the microcontroller module comprises a microcontroller, a clock circuit, a reset circuit and a power failure detection circuit; the power failure detection circuit comprises a three-terminal voltage regulator Q1, a diode D10, a resistor R23, a resistor R24, a resistor R25 and a capacitor C4; the negative end of the diode D10 is connected with the 3 rd end of the three-terminal regulator Q1; the positive end of the diode D10 is connected with one end of the resistor R23 and is connected with a power supply positive electrode VCC; the connection point of one end of the resistor R25 and one end of the capacitor C4 is connected with the 8 th ADC1 of the microcontroller; the other end of the resistor R23, one end of the resistor R24 and the other end of the resistor R25 are connected.

Preferably, the PWM duty ratio display module includes a first channel PWM duty ratio display module, a second channel PWM duty ratio display module, and a third channel PWM duty ratio display module, and displays a PWM duty ratio value of each channel; the first channel PWM duty ratio display module comprises a triode Q2, a resistor R26, a resistor R27 and a display light bar LED1, wherein an emitting electrode of the triode Q2 and one end of the resistor R26 are connected with a power supply positive electrode VCC; the base electrode of the triode Q2, the other end of the resistor R26 and one end of the resistor R27 are connected, the other end of the resistor R27 is connected with the 36 th end DS-1 of the microcontroller, and the collector electrode of the triode Q2 is connected with the positive end of the display light bar LED 1; all the negative terminals of the display light bar LED1, LED2 and LED3 are connected to the D1, D2, D3, D4, D5, D6, D7, D8, D9 and D0 terminals through the resistor R2, the resistor R4, the resistor R6, the resistor R8, the resistor R10, the resistor R12, the resistor R14, the resistor R16, the resistor R18 and the resistor R20 included in the microcontroller, respectively, and are connected to the 55 th, 56 th, 58 th, 61 st, 62 th, 29 th, 30 th, 33 th, 34 th and 35 th terminals of the corresponding microcontroller; one end of a resistor R29 contained in the second channel PWM duty ratio display module and one end of a resistor R31 contained in the third channel PWM duty ratio display module are respectively connected with a 54 th end DS-2 of the microcontroller and a 53 th end DS-3 of the microcontroller; the circuit structures of the second channel PWM duty ratio display module and the third channel PWM duty ratio display module are the same as the circuit structure of the first channel PWM duty ratio display module.

Preferably, the 1 st, 2 nd, 3 rd, 4 th, 5 th, 6 th, 7 th, 8 th, 9 th and 0 th terminals of the positive terminal of the timing display module are respectively connected to the positive terminal VCC of the power supply through a resistor R32, a resistor R33, a resistor R34, a resistor R35, a resistor R36, a resistor R37, a resistor R38, a resistor R39, a resistor R40 and a resistor R41 included in the timing display module; the D01, D02, D03, D04, D05, D06, D07, D08, D09 and RD0 terminals of the negative terminal of the timing display module are respectively connected with the 41 st, 42 th, 43 th, 45 th, 50 th, 37 th, 39 th, 40 th, 51 th and 52 th terminals of the microcontroller; after the RD0 terminal of the negative terminal of the timing display module is connected to the terminal 52 of the microcontroller, the timing display module can be used as a stroboscopic power indicator lamp and a visual display of the working state of the microcontroller module.

Preferably, the PWM open-drain output module includes a first channel PWM open-drain output, a second channel PWM open-drain output, and a third channel PWM open-drain output; the first channel PWM open-drain output comprises a triode Q5, a triode Q6 and a resistor R42; the base electrodes of the transistor Q5 and the transistor Q6 are connected with one end of the resistor R42, and the other end of the resistor R42 is connected with the 44 th end PWM1 of the microcontroller; the first channel PWM open-drain output module further comprises a field effect transistor Q6, a resistor R43, a resistor R44 and a coaxial cable connector BNC; the drain electrode of the field effect transistor Q6 is directly connected with the coaxial cable connector BNC to form a PWM open-drain output mode; the circuit structures of the second channel PWM open-drain output and the third channel PWM open-drain output are the same as the circuit structure of the first channel PWM open-drain output and are respectively connected with the 38 th end PWM2 of the microcontroller and the 59 th end PWM3 of the microcontroller.

Preferably, the PWM optical coupling receiving module includes a multi-path splitter, a plurality of terminal controllers, a plurality of optical couplers, and a plurality of optical couplers,

The LED driving power supplies and the LED lamps are sequentially connected; the multi-way splitter packet

The device comprises a coaxial cable connector BNC, an optoelectronic coupler U1, a resistor R47, a three-terminal regulator Q10, a three-terminal regulator Q11, a triode Q8, a triode Q9, a resistor R46 and a resistor R45; the coaxial cable connector BNC is connected with the 2 nd end of the photoelectric coupler U1 in series; the 1 st end of the photoelectric coupler U1 is connected with one end of the resistor R47 in series; the other end of the resistor R47 is connected in series with a power supply anode VCC of the 1 st end of the three-terminal regulator Q11; the 6 th end of the photoelectric coupler U1 is connected with a power supply anode VCC of the 1 st end of the three-terminal regulator Q10; the demultiplexer further comprises a resistor R48, a resistor R49, a resistor R50 and a diode D11; one end of the resistor R48 and one end of the resistor R50 are connected with the positive end of the diode D11; the other end of the resistor R48 is connected with the 6 th end of the photoelectric coupler U1; one end of the resistor R49 and the negative terminal of the diode D11 are connected with the 5 th terminal of the photoelectric coupler U1 and one end of the resistor R46; the base electrodes of the transistor Q8 and the transistor Q9 are connected with the other end of the resistor R46, and the emitter electrodes of the transistor Q8 and the transistor Q9 are connected with one end of the resistor R45; the other end of the resistor R45 is connected with a 1 st end Dim + of the LED driving power supply; the 2 nd power supply positive terminal VCC of the LED driving power supply is connected with the 3 rd terminal of the three-terminal regulator Q10 and the 3 rd terminal of the three-terminal regulator Q11; the multi-way splitter further comprises a field effect tube Q14 and a field effect tube Q17; the drain of the field effect transistor Q14 and the drain of the field effect transistor Q17 are respectively connected in series by a plurality of coaxial cable connectors BNC and coaxial cables applied to the coaxial cable connectors BNC of the terminal controllers; the 2 nd end of the opto-electric coupler U1 is connected to the coaxial cable connector BNC, and the coaxial cable is connected in series to the coaxial cable connector BNC in the PWM open-drain output module.

Preferably, a constant current output circuit provided for a plurality of LED lamps is arranged in a plurality of LED driving power supplies included in the PWM optocoupler receiving module; the other is a voltage stabilizing circuit which is provided for the operation of a multi-path splitter or a plurality of terminal controllers; the LED lamp is also provided with a PWM and 0-10V dimming circuit and a circuit capable of cutting off constant current output; the power adapter is a working power supply for the microcontroller module, the PWM duty ratio display module, the timing display module, the human-computer interface module and the PWM open-drain output module.

Preferably, the multipath splitter and the plurality of terminal controllers included in the PWM optocoupler receiving module are respectively provided with an optocoupler TLP2355 therein; the microcontroller is a microcontroller module circuit formed by an STM32F103RC single chip microcomputer.

Because above-mentioned technical scheme's application, the utility model discloses it is reliable stable to have PWM signal remote transmission, not disturbed, and lamps and lanterns coverage is wide, and multichannel is adjusted luminance and is shut off control system and adjust luminance and turn off the lamp through the digital control mode of intelligence, can satisfy and be fit for industry or commercial intelligent energy-conserving lighting needs.

Drawings

Fig. 1 is a block diagram of a circuit configuration according to an embodiment of the present invention.

Fig. 2 is a schematic circuit diagram of a microcontroller module according to an embodiment of the present invention.

Fig. 3 is a schematic circuit structure diagram of the PWM duty ratio display module according to the embodiment of the present invention.

Fig. 4 is a schematic circuit diagram of a timing display module according to an embodiment of the present invention.

Fig. 5 is a schematic circuit diagram of the PWM open-drain module according to the present invention.

Fig. 6 is the utility model discloses a PWM opto-coupler receiving module circuit structure schematic diagram.

Wherein: 1-a microcontroller module; 11-a microcontroller; 12-a clock circuit; 13-a reset circuit; 14-a power down detection circuit; 2-PWM duty ratio display module; 21-a first channel PWM duty cycle display module; 22-a second channel PWM duty cycle display module; 23-a third channel PWM duty ratio display module; 3-a timing display module; 4-a human-machine interface module; 5-PWM open-drain output module; 51-first channel PWM open-drain output; 52-second channel PWM open-drain output; 53-third channel PWM open-drain output; 6-PWM optical coupling receiving module; 61-a multi-way splitter; 62-a terminal controller; 63-LED driving power supply; 7-PWM optical coupling receiving module; 8-PWM optical coupling receiving module; 9-Power adapter.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is a wired remote multi-channel intelligent dimming control system for LED industrial lighting, which comprises a microcontroller module 1, a PWM duty ratio display module 2, a timing display module 3, a human-computer interface module 4, a PWM leakage output module 5, a PWM optocoupler receiving module 6 and a power adapter 9; the microcontroller module 1 displays a PWM duty ratio value on the PWM duty ratio display module 2 according to PWM data processed by intelligent conversion according to instruction information sent by the human-computer interface module 4, and controls a plurality of LED driving power sources 63 contained in the PWM optical coupling receiving module 6 through the PWM open-drain output module 5 and the PWM optical coupling receiving module 6 according to the PWM duty ratio value and a control instruction, so that dimming or lamp turning-off of a plurality of LED lamps is realized.

The human-computer interface module 4 comprises a PWM duty ratio selection key module, a PWM duty ratio locking key module, a timing setting key module and a timing locking key module; the human-computer interface module 4 sets PWM duty ratio, timing light-off time and display on the parameters of the microcontroller module 1; the PWM duty ratio selection key module command can only generate PWM signals of 1 channel, and also can generate PWM signals of 2 or 3 channels, and the corresponding duty ratios can be the same or different PWM signals; the PWM frequencies of the 3 channels are the same and are fixed frequencies, and the frequencies are selected within the range of 100 Hz-600 Hz; the duty ratio setting range is 0% -100%; after the setting of the PWM duty ratio value and the timing time is determined, the PWM duty ratio locking key module and the timing setting key module can be used for locking respectively; or when no instruction is given to modify the set and determined PWM duty ratio value and the timing time within 5 minutes, the PWM duty ratio value and the timing time are naturally locked and unchanged when 5 minutes come; the timing time is set within 1-24 hours at will; when the timing locking key module is pressed for 2 seconds, the working state of the microcontroller module 1 before timing shutdown can be restored.

As shown in fig. 2, the microcontroller module 1 includes a microcontroller 11, a clock circuit 12, a reset circuit 13, and a power down detection circuit 14; the power failure detection circuit 14 comprises a three-terminal regulator Q1, a diode D10, a resistor R23, a resistor R24, a resistor R25 and a capacitor C4; the negative end of the diode D10 is connected with the 3 rd end of the three-terminal regulator Q1; the positive end of the diode D10 is connected with one end of the resistor R23 and is connected with a power supply positive electrode VCC; a connection point of one end of the resistor R25 and one end of the capacitor C4 is connected with the 8 th ADC1 of the microcontroller 11; the other end of the resistor R23, one end of the resistor R24 and the other end of the resistor R25 are connected.

As shown in fig. 3, the PWM duty ratio display module 2 includes a first channel PWM duty ratio display module 21, a second channel PWM duty ratio display module 22, and a third channel PWM duty ratio display module 23, and displays a PWM duty ratio value of each channel; the first channel PWM duty ratio display module 21 comprises a triode Q2, a resistor R26, a resistor R27 and a display light bar LED1, wherein an emitter of the triode Q2 and one end of the resistor R26 are connected with a power supply anode VCC; the base electrode of the triode Q2, the other end of the resistor R26 and one end of the resistor R27 are connected, the other end of the resistor R27 is connected with the 36 th end DS-1 of the microcontroller 11, and the collector electrode of the triode Q2 is connected with the positive end of the display light bar LED 1; all the negative terminals of the display light bar LED1, LED2 and LED3 are connected to the D1, D2, D3, D4, D5, D6, D7, D8, D9 and D0 terminals through the resistor R2, the resistor R4, the resistor R6, the resistor R8, the resistor R10, the resistor R12, the resistor R14, the resistor R16, the resistor R18 and the resistor R20 included in the microcontroller 11 respectively, and are connected to the 55 th, 56 th, 58 th, 61 st, 62 th, 29 th, 30 th, 33 th, 34 th and 35 th terminals of the microcontroller 11 correspondingly; one end of the resistor R29 included in the second channel PWM duty ratio display module 22 and one end of the resistor R31 included in the third channel PWM duty ratio display module 23 are respectively connected to the 54 th end DS-2 of the microcontroller 11 and the 53 th end DS-3 of the microcontroller 11; the circuit structures of the second channel PWM duty ratio display module 22 and the third channel PWM duty ratio display module 23 are the same as the circuit structure of the first channel PWM duty ratio display module 21.

As shown in fig. 4, the 1 st, 2 nd, 3 rd, 4 th, 5 th, 6 th, 7 th, 8 th, 9 th and 0 th terminals of the positive terminal of the timing display module 3 are respectively connected to the positive terminal VCC of the power supply through the resistor R32, the resistor R33, the resistor R34, the resistor R35, the resistor R36, the resistor R37, the resistor R38, the resistor R39, the resistor R40 and the resistor R41 included in the timing display module 3; the terminals D01, D02, D03, D04, D05, D06, D07, D08, D09 and RD0 of the negative terminal of the timing display module 3 are respectively connected with the

terminals

41, 42, 43, 45, 50, 37, 39, 40, 51 and 52 of the microcontroller 11; after the RD0 terminal of the negative terminal of the timing display module 3 is connected to the terminal 52 of the microcontroller 11, the timing display module can be used as a stroboscopic power indicator and a visual display of the working state of the microcontroller module 1.

As shown in fig. 5, the PWM open-drain output module 5 includes a first channel PWM open-drain output 51, a second channel PWM open-drain output 52, and a third channel PWM open-drain output 53; the first channel PWM open-drain output 51 comprises a transistor Q5, a transistor Q6, and a resistor R42; the base electrodes of the transistor Q5 and the transistor Q6 are connected with one end of the resistor R42, and the other end of the resistor R42 is connected with the 44 th end PWM1 of the microcontroller 11; the first channel PWM open-drain output 51 further comprises a field effect transistor Q6, a resistor R43, a resistor R44 and a coaxial cable connector BNC; the drain electrode of the field effect transistor Q6 is directly connected with the coaxial cable connector BNC to form a PWM open-drain output mode; the circuit structures of the second channel PWM open-drain output 52 and the third channel PWM open-drain output 53 are the same as the circuit structure of the first channel PWM open-drain output 51 and are respectively connected to the 38 th end PWM2 of the microcontroller 11 and the 59 th end PWM3 of the microcontroller 11.

As shown in fig. 6, the PWM optical coupler receiving module 6 includes a multi-path splitter 61, a plurality of terminal controllers 62, a plurality of LED driving power supplies 63, and a plurality of LED lamps; the multi-way splitter 61 comprises a coaxial cable connector BNC, an optoelectronic coupler U1, a resistor R47, a three-terminal regulator Q10, a three-terminal regulator Q11, a triode Q8, a triode Q9, a resistor R46 and a resistor R45; the coaxial cable connector BNC is connected with the 2 nd end of the photoelectric coupler U1 in series; the 1 st end of the photoelectric coupler U1 is connected with one end of the resistor R47 in series; the other end of the resistor R47 is connected in series with a power supply anode VCC of the 1 st end of the three-terminal regulator Q11; the 6 th end of the photoelectric coupler U1 is connected with a power supply anode VCC of the 1 st end of the three-terminal regulator Q10; the demultiplexer 61 further includes a resistor R48, a resistor R49, a resistor R50, and a diode D11; one end of the resistor R48 and one end of the resistor R50 are connected with the positive end of the diode D11; the other end of the resistor R48 is connected with the 6 th end of the photoelectric coupler U1; one end of the resistor R49 and the negative terminal of the diode D11 are connected with the 5 th terminal of the photoelectric coupler U1 and one end of the resistor R46; the base electrodes of the transistor Q8 and the transistor Q9 are connected with the other end of the resistor R46, and the emitter electrodes of the transistor Q8 and the transistor Q9 are connected with one end of the resistor R45; the other end of the resistor R45 is connected to the 1 st end Dim + of the LED driving power supply 63; the 2 nd power supply positive terminal VCC of the LED driving power supply 63 is connected with the 3 rd terminal of the three-terminal regulator Q10 and the 3 rd terminal of the three-terminal regulator Q11; the multi-way splitter 61 further comprises a field effect transistor Q14 and a field effect transistor Q17; the drain of the fet Q14 and the drain of the fet Q17 are connected in series via a plurality of coaxial cable connectors BNC, respectively, and a coaxial cable is used to connect with the coaxial cable connectors BNC of the terminal controllers 62; the 2 nd end of the opto-electric coupler U1 is connected to the coaxial cable connector BNC, and the coaxial cable is connected in series to the coaxial cable connector BNC in the PWM open-drain output module 6.

The circuit structure of the PWM optical coupler receiving module 7 and the circuit structure of the PWM optical coupler receiving module 8 are the same as the circuit structure of the PWM optical coupler receiving module 6.

A constant current output circuit which is provided for a plurality of LED lamps is arranged in a plurality of LED driving power supplies 63 contained in the PWM optocoupler receiving module 6; the other is a voltage stabilizing circuit which is provided for the operation of the multi-path branching device 61 or a plurality of terminal controllers 62; the LED lamp is also provided with a PWM and 0-10V dimming circuit and a circuit capable of cutting off constant current output; the power adapter 9 is a working power supply for the microcontroller module 1, the PWM duty ratio display module 2, the timing display module 3, the human-computer interface module 4, and the PWM open-and-leak output module 5.

The multipath splitter 61 and the plurality of terminal controllers 62 included in the PWM optocoupler receiving module 6 are respectively provided with an optocoupler TLP 2355; the microcontroller 11 is a circuit of the microcontroller module 1 formed by an STM32F103RC singlechip.

The utility model discloses it is reliable stable to have the remote transmission of PWM signal, not disturbed, and lamps and lanterns coverage is wide, and multichannel is adjusted luminance and is turn off the lamp turn-offed control system and adjust luminance through the digital control mode of intelligence, can satisfy and be fit for industry or commercial intelligent energy-conserving lighting needs.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. The utility model provides a wired long-range multichannel intelligence dimming control system of LED industry illumination which characterized in that:

the system comprises a microcontroller module, a PWM duty ratio display module, a timing display module, a man-machine interface module, a PWM leakage output module, a PWM optocoupler receiving module and a power adapter;

the microcontroller module comprises a microcontroller, a clock circuit, a reset circuit and a power failure detection circuit; the power failure detection circuit comprises a three-terminal voltage regulator Q1, a diode D10, a resistor R23, a resistor R24, a resistor R25 and a capacitor C4; the negative end of the diode D10 is connected with the 3 rd end of the three-terminal regulator Q1; the positive end of the diode D10 is connected with one end of the resistor R23 and is connected with a power supply positive electrode VCC; the connection point of one end of the resistor R25 and one end of the capacitor C4 is connected with the 8 th ADC1 of the microcontroller; the other end of the resistor R23, one end of the resistor R24 and the other end of the resistor R25 are connected.

2. The wired remote multi-channel intelligent dimming control system for LED industrial lighting according to claim 1, wherein: the man-machine interface module comprises a PWM duty ratio selection key module, a PWM duty ratio locking key module, a timing setting key module and a timing locking key module.

3. The wired remote multi-channel intelligent dimming control system for LED industrial lighting according to claim 1, wherein: the PWM duty ratio display module comprises a first channel PWM duty ratio display module, a second channel PWM duty ratio display module and a third channel PWM duty ratio display module, and displays the PWM duty ratio value of each channel; the first channel PWM duty ratio display module comprises a triode Q2, a resistor R26, a resistor R27 and a display light bar LED1, wherein an emitting electrode of the triode Q2 and one end of the resistor R26 are connected with a power supply positive electrode VCC; the base electrode of the triode Q2, the other end of the resistor R26 and one end of the resistor R27 are connected, the other end of the resistor R27 is connected with the 36 th end DS-1 of the microcontroller, and the collector electrode of the triode Q2 is connected with the positive end of the display light bar LED 1; all the negative terminals of the display light bar LED1, LED2 and LED3 are connected to the D1, D2, D3, D4, D5, D6, D7, D8, D9 and D0 terminals through the resistor R2, the resistor R4, the resistor R6, the resistor R8, the resistor R10, the resistor R12, the resistor R14, the resistor R16, the resistor R18 and the resistor R20 included in the microcontroller, respectively, and are connected to the 55 th, 56 th, 58 th, 61 st, 62 th, 29 th, 30 th, 33 th, 34 th and 35 th terminals of the corresponding microcontroller; one end of a resistor R29 contained in the second channel PWM duty ratio display module and one end of a resistor R31 contained in the third channel PWM duty ratio display module are respectively connected with a 54 th end DS-2 of the microcontroller and a 53 th end DS-3 of the microcontroller; the circuit structures of the second channel PWM duty ratio display module and the third channel PWM duty ratio display module are the same as the circuit structure of the first channel PWM duty ratio display module.

4. The wired remote multi-channel intelligent dimming control system for LED industrial lighting according to claim 1, wherein: the 1 st end, the 2 nd end, the 3 rd end, the 4 th end, the 5 th end, the 6 th end, the 7 th end, the 8 th end, the 9 th end and the 0 th end of the positive electrode end of the timing display module are respectively connected with a VCC of a power supply positive electrode end through a resistor R32, a resistor R33, a resistor R34, a resistor R35, a resistor R36, a resistor R37, a resistor R38, a resistor R39, a resistor R40 and a resistor R41 which are included in the timing display module; the D01, D02, D03, D04, D05, D06, D07, D08, D09 and RD0 terminals of the negative terminal of the timing display module are respectively connected with the 41 st, 42 th, 43 th, 45 th, 50 th, 37 th, 39 th, 40 th, 51 th and 52 th terminals of the microcontroller; the RD0 terminal of the negative terminal of the timing display module is connected into the rear of the 52 terminal of the microcontroller.

5. The wired remote multi-channel intelligent dimming control system for LED industrial lighting according to claim 1, wherein: the PWM open-drain output module comprises a first channel PWM open-drain output, a second channel PWM open-drain output and a third channel PWM open-drain output; the first channel PWM open-drain output comprises a triode Q5, a triode Q6 and a resistor R42; the base electrodes of the transistor Q5 and the transistor Q6 are connected with one end of the resistor R42, and the other end of the resistor R42 is connected with the 44 th end PWM1 of the microcontroller; the first channel PWM open-drain output further comprises a field effect transistor Q6, a resistor R43, a resistor R44 and a coaxial cable connector BNC; the drain electrode of the field effect transistor Q6 is directly connected with the coaxial cable connector BNC to form a PWM open-drain output mode; the circuit structures of the second channel PWM open-drain output and the third channel PWM open-drain output are the same as the circuit structure of the first channel PWM open-drain output and are respectively connected with the 38 th end PWM2 of the microcontroller and the 59 th end PWM3 of the microcontroller.

6. The wired remote multi-channel intelligent dimming control system for LED industrial lighting according to claim 1, wherein: the PWM optocoupler receiving module comprises a multi-path splitter, a plurality of terminal controllers, a plurality of LED driving power supplies and a plurality of LED lamps which are connected in sequence; the multi-way splitter comprises a coaxial cable connector BNC, an optoelectronic coupler U1, a resistor R47, a three-terminal regulator Q10, a three-terminal regulator Q11, a triode Q8, a triode Q9, a resistor R46 and a resistor R45; the coaxial cable connector BNC is connected with the 2 nd end of the photoelectric coupler U1 in series; the 1 st end of the photoelectric coupler U1 is connected with one end of the resistor R47 in series; the other end of the resistor R47 is connected in series with a power supply anode VCC of the 1 st end of the three-terminal regulator Q11; the 6 th end of the photoelectric coupler U1 is connected with a power supply anode VCC of the 1 st end of the three-terminal regulator Q10; the demultiplexer further comprises a resistor R48, a resistor R49, a resistor R50 and a diode D11; one end of the resistor R48 and one end of the resistor R50 are connected with the positive end of the diode D11; the other end of the resistor R48 is connected with the 6 th end of the photoelectric coupler U1; one end of the resistor R49 and the negative terminal of the diode D11 are connected with the 5 th terminal of the photoelectric coupler U1 and one end of the resistor R46; the base electrodes of the transistor Q8 and the transistor Q9 are connected with the other end of the resistor R46, and the emitter electrodes of the transistor Q8 and the transistor Q9 are connected with one end of the resistor R45; the other end of the resistor R45 is connected with a 1 st end Dim + of the LED driving power supply; the 2 nd power supply positive terminal VCC of the LED driving power supply is connected with the 3 rd terminal of the three-terminal regulator Q10 and the 3 rd terminal of the three-terminal regulator Q11; the multi-way splitter further comprises a field effect tube Q14 and a field effect tube Q17; the drain of the field effect transistor Q14 and the drain of the field effect transistor Q17 are respectively connected in series by a plurality of coaxial cable connectors BNC and coaxial cables applied to the coaxial cable connectors BNC of the terminal controllers; the 2 nd end of the opto-electric coupler U1 is connected to the coaxial cable connector BNC, and the coaxial cable is connected in series to the coaxial cable connector BNC in the PWM open-drain output module.

7. The wired remote multi-channel intelligent dimming control system for LED industrial lighting according to claim 1, wherein: a constant current output circuit which is provided for a plurality of LED lamps is arranged in a plurality of LED driving power supplies which are contained in the PWM optocoupler receiving module; the other is a voltage stabilizing circuit which is provided for the operation of a multi-path splitter or a plurality of terminal controllers; the LED lamp is also provided with a PWM and 0-10V dimming circuit and a circuit capable of cutting off constant current output; the power adapter is a working power supply for the microcontroller module, the PWM duty ratio display module, the timing display module, the human-computer interface module and the PWM open-drain output module.

8. The wired remote multi-channel intelligent dimming control system for LED industrial lighting according to claim 1, wherein: photoelectric couplers TLP2355 are respectively arranged in the multipath splitter and the plurality of terminal controllers contained in the PWM optical coupler receiving module; the microcontroller is a microcontroller module circuit formed by an STM32F103RC single chip microcomputer.