WO2023035735A1

WO2023035735A1 - Control system of three-phase street lamp

Info

Publication number: WO2023035735A1
Application number: PCT/CN2022/102773
Authority: WO
Inventors: 李东声
Original assignee: 天地融科技股份有限公司
Priority date: 2021-09-13
Filing date: 2022-06-30
Publication date: 2023-03-16
Also published as: CN113966045B; CN113966045A

Abstract

A control system of a three-phase street lamp, said system comprising an alternating current (AC) transformer, a direct current (DC) transformer, a control switch, a PLC main control module, a first PLC lamp control module, a second PLC lamp control module, a third PLC lamp control module, a first isolator, a second isolator, and a third isolator. By means of the control system of a three-phase street lamp in the present disclosure, the problems of independent switch control and dimming control for a conventional street lamp are solved, and flexible energy consumption management is achieved. Moreover, the problem that a conventional street lamp cannot supply power to a pole application due to power loss during the day because of safety concerns (potential safety hazards caused by 220V AC power supply) is solved; the problem of secure communication for a pole application of a conventional street lamp is solved; and the problem that a conventional street lamp requires manual inspection is solved.

Description

A three-phase street lamp control system

Cross References to Related Applications

This disclosure is based on a Chinese patent application with application number 202111069673.9 and a filing date of September 13, 2021, and claims the priority of this Chinese patent application. The entire content of this Chinese patent application is hereby incorporated by reference into this disclosure.

technical field

The present disclosure relates to the field of electronic technology, in particular to a control system for a three-phase street lamp.

Background technique

The role of urban street lighting is to create a good viewing environment for pedestrians and drivers of various vehicles, so as to achieve the purpose of ensuring traffic safety, improving transportation efficiency, facilitating people's lives, reducing crime and beautifying the urban environment.

However, the traditional street lighting system uses a dedicated transformer and a dedicated independent line for power supply, which can only be controlled by segmented overall switching, and cannot be switched or dimmed independently. The power is cut off, so it cannot provide power for other pole applications during the day; in addition, traditional street lights require manual inspection and maintenance is inconvenient.

public content

The present disclosure aims to solve the above-mentioned problems.

The main purpose of the present disclosure is to provide a control system for a three-phase street lamp.

In order to achieve the above purpose, the technical solution of the present disclosure is specifically implemented as follows:

One aspect of the present disclosure provides a three-phase street lamp control system, including: AC transformer, DC transformer, control switch, PLC main control module, first PLC light control module, second PLC light control module, third PLC light control module module, a first isolator, a second isolator, and a third isolator; the first output end of the AC transformer is connected to the first input end of the control switch, and the second output end of the AC transformer is connected to the The input end of the DC transformer, the first output end of the AC transformer includes N line, A line, B line and C line, the first input end of the control switch includes: N line, A line, B line and C line line, the second output end of the AC transformer includes: N line, A line, B line and C line, the input end of the DC transformer includes: N line, A line, B line and C line; the DC transformer The output end of the control switch is connected to the second input end of the control switch, the output end of the DC transformer includes an N line and an L line, and the second input end of the control switch includes an N line and an L line; the PLC main control The control end of the module is connected to the control end of the control switch; the signal end of the PLC main control module is connected to the input end of the first PLC light control module, and the signal end of the PLC main control module includes N wire and A line, the input end of the first PLC light control module includes N line and A line; the input end of the first PLC light control module is connected to the output end of the control switch; the output end of the control switch includes : N line, A line, B line and C line, the N line and A line of the input end of the first PLC light control module are respectively connected to the N line and A line of the output end of the control switch; the second PLC The input end of the light control module is connected to the output end of the control switch, the input end of the second PLC light control module includes N line and B line, and the N line and B line of the input end of the second PLC light control module Corresponding to the N line and the B line connected to the output end of the control switch; the input end of the third PLC light control module is connected to the output end of the control switch, and the input end of the third PLC light control module includes N line and C line, the N line and C line of the input end of the third PLC light control module are respectively connected to the N line and C line of the output end of the control switch; the first isolator is arranged on the control switch The A line between the output end and the signal end of the PLC main control module; the second isolator is arranged on the B line between the output end of the control switch and the output end of the first PLC light control module online; the third isolator is set on the C line between the output end of the control switch and the output end of the second PLC light control module; the control switch is used to receive the PLC main control According to the first switching instruction sent by the module, the output end of the AC transformer is connected to the output end of the control switch according to the first switching instruction, and the N line, A line, B line and C line of the AC transformer are respectively Correspondingly connected to the N line, A line, B line and C line of the output end of the control switch; the control switch is also used to receive the second switching instruction sent by the PLC main control module, according to the second switch Instructions are used to connect the output end of the DC transformer to the output end of the control switch, the N wire of the output end of the DC transformer is connected to the N wire of the output end of the control switch, and the L wires of the output end of the DC transformer are respectively Connect the A line, B line and C line of the control switch; the PLC main control module is used to send a control signal through the signal terminal of the PLC main control module, wherein the control signal includes the identification of the component to be controlled and Control instruction; the first PLC light control module is used to receive the control signal, and judge whether the identification of the component to be controlled is a component connected to the first PLC light control module, and if so, according to the control instruction to operate; if not, the control signal is sent to the input end of the second PLC light control module through the output terminal of the first PLC light control module; the second PLC light control module is used for receiving the control signal, judging whether the identification of the component to be controlled is a component connected to the second PLC light control module, if yes, operating according to the control instruction; if not, passing the control signal through The output end of the second PLC light control module is sent to the input end of the third PLC light control module; the third PLC light control module is used to receive the control signal and determine whether the identification of the component to be controlled is It is a component connected to the third PLC light control module, if so, it operates according to the control instruction.

Wherein, the first PLC light control module includes a first control unit, a first light control unit and a first expansion unit, and the first control unit is connected to the first light control unit and the first expansion unit; The first control unit is used to determine whether the control signal is a light control signal or a pole-holding application signal, and if it is a light-control signal, send the control command to the first light-control unit; if it is a pole-holding application signal signal, the control command is sent to the first expansion unit; the first light control unit is connected to the first street lamp component, and is used to perform the light control operation according to the control command; the first expansion unit is connected to the second A pole application component, configured to perform corresponding operations according to the control instructions.

Wherein, the first PLC light control module further includes: a second control unit; the second control unit is configured to send the control signal to the input terminal of the second PLC light control module.

Wherein, the second PLC light control module includes a third control unit, a second light control unit and a second expansion unit, and the third control unit is connected to the second light control unit and the second expansion unit; The third control unit is used to determine whether the control signal is a light control signal or a pole-holding application signal, and if it is a light-control signal, send the control command to the second light-control unit; if it is a pole-holding application signal signal, then send the control signal to the second extension unit; the second light control unit is connected to the second street lamp component, and is used to perform the light control operation according to the control instruction; the second extension unit is connected to the second Two pole application components, configured to perform corresponding operations according to the control instructions.

Wherein, the second PLC light control module further includes: a fourth control unit; the fourth control unit is configured to send the control signal to the input terminal of the third PLC light control module.

Wherein, the third PLC light control module includes a fifth control unit, a third light control unit and a third expansion unit, and the fifth control unit is connected to the third light control unit and the third expansion unit; The fifth control unit is used to determine whether the control signal is a light control signal or a pole-holding application signal, and if it is a light-control signal, send the control command to the third light-control unit; if it is a pole-holding application signal signal, then send the control signal to the third extension unit; the third light control unit is connected to the third street lamp component, and is used to perform the light control operation according to the control instruction; the third extension unit is connected to the third The three-arm application component is configured to perform corresponding operations according to the control instructions.

Wherein, the system also includes: a fourth isolator; the fourth isolator is set on the A line between the output end of the control switch and the output end of the third PLC light control module; the third PLC The light control module further includes: a sixth control unit; the sixth control unit is configured to send the control signal to an input terminal of a subsequent light control module.

Wherein, the street lamp on operation, street lamp off operation, street lamp dimming operation, voltage detection, current detection and fault detection.

Wherein, the system also includes: a street lamp management platform; the street lamp management platform is used to send management instructions to the PLC main control module; the PLC main control module sends through the signal terminal of the PLC main control module in the following manner Control signal: the PLC main control module is specifically configured to receive the management instruction, and send a control signal through the signal terminal of the PLC main control module according to the management instruction.

It can be seen from the above-mentioned technical solutions provided by this disclosure that this disclosure provides a control system for three-phase street lamps, which solves the problems of independent switch control and dimming control of traditional street lamps, and realizes flexible energy consumption management; solves the problem of traditional street lamps due to Safety concerns (potential safety hazards caused by 220V AC power supply) the problem that power failure during the day cannot supply power to the pole application; solve the security communication problem of the traditional street lamp pole application; solve the problem that the traditional street lamp needs manual inspection.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For Those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative work.

Fig. 1 is a schematic structural diagram of a control system for a three-phase street lamp provided by an embodiment of the present disclosure.

Detailed ways

The technical solutions in the embodiments of the present disclosure are clearly and completely described below in combination with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, not all of them. Based on the embodiments of the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present disclosure.

Embodiments of the present disclosure will be further described in detail below in conjunction with the accompanying drawings.

Fig. 1 shows a schematic structural diagram of a control system for a three-phase street lamp provided by an embodiment of the present disclosure. Referring to Fig. 1, the control system for a three-phase street lamp provided by an embodiment of the present disclosure includes:

AC transformer, DC transformer, control switch, PLC main control module, first PLC light control module, second PLC light control module, third PLC light control module, first isolator, second isolator and third isolator;

The first output end of the AC transformer is connected to the first input end of the control switch, the second output end of the AC transformer is connected to the input end of the DC transformer, and the first output end of the AC transformer includes N line, A line, B line and C line. Line, the first input end of the control switch includes: N line, A line, B line and C line, the second output end of the AC transformer includes: N line, A line, B line and C line, and the input end of the DC transformer includes : N line, A line, B line and C line;

The output end of the DC transformer is connected to the second input end of the control switch, the output end of the DC transformer includes an N line and an L line, and the second input end of the control switch includes an N line and an L line;

The control terminal of the PLC main control module is connected to the control terminal of the control switch;

The signal end of the PLC main control module is connected to the input end of the first PLC light control module, the signal end of the PLC main control module includes an N line and an A line, and the input end of the first PLC light control module includes an N line and an A line;

The input end of the first PLC light control module is connected to the output end of the control switch; the output end of the control switch includes: N line, A line, B line and C line, and the N line and A line of the input end of the first PLC light control module Respectively correspond to the N line and A line connected to the output end of the control switch;

The input end of the second PLC light control module is connected to the output end of the control switch, the input end of the second PLC light control module includes N line and B line, and the N line and B line of the input end of the second PLC light control module are connected correspondingly Control the N line and B line of the output end of the switch;

The input end of the third PLC light control module is connected to the output end of the control switch, the input end of the third PLC light control module includes N wire and C wire, and the N wire and C wire of the input end of the third PLC light control module are respectively connected to Control the N line and C line of the output end of the switch;

The first isolator is arranged on the A line between the output end of the control switch and the signal end of the PLC main control module;

The second isolator is arranged on the B line between the output end of the control switch and the output end of the first PLC light control module;

The third isolator is arranged on the C line between the output end of the control switch and the output end of the second PLC light control module;

The control switch is used to receive the first switching instruction sent by the PLC main control module, and connect the output terminal of the AC transformer with the output terminal of the control switch according to the first switching instruction, and the N line, A line, B line and C line of the AC transformer Corresponding to the N line, A line, B line and C line connected to the output terminal of the control switch;

The control switch is also used to receive the second switching instruction sent by the PLC main control module, connect the output end of the DC transformer to the output end of the control switch according to the second switching instruction, and connect the N line of the output end of the DC transformer to the output end of the control switch. The N line and the L line at the output end of the DC transformer are respectively connected to the A line, B line and C line of the control switch;

The PLC main control module is used to send a control signal through the signal terminal of the PLC main control module, wherein the control signal includes the identification of the component to be controlled and a control instruction;

The first PLC light control module is used to receive the control signal, and judge whether the component to be controlled is identified as a component connected to the first PLC light control module. If yes, operate according to the control instruction; if not, pass the control signal through the first PLC light control module. The output end of the first PLC light control module is sent to the input end of the second PLC light control module;

The second PLC light control module is used to receive the control signal, and judge whether the component to be controlled is identified as a component connected to the second PLC light control module. If yes, operate according to the control instruction; if not, pass the control signal through the second PLC light control module. The output end of the second PLC light control module is sent to the input end of the third PLC light control module;

The third PLC light control module is used to receive the control signal, judge whether the component to be controlled is identified as a component connected to the third PLC light control module, and if so, operate according to the control instruction.

The street light system of the present disclosure adopts three-phase lines for power transmission and control. It includes an AC/AC transformer, an AC/DC converter, a control switch, a PLC main control module, and at least three PLC light control modules.

in:

AC/AC transformer, used to transform the high-voltage AC point to three-phase AC 220V or 380V AC, and supply the power supply unit for the street lighting system;

AC/DC converter, used to convert three-phase AC 220V or 380V to low-voltage DC, such as 36V;

The control switch is used to realize the switching and switching of the main circuit of the street lamp 220V/380V AC and 36V DC;

PLC main control module, used to control the control switch of the main line of the route, individually or in batches to control the components connected to the PLC light control module, such as the switch and dimming of street lights, check the status of each PLC light control module, and provide safety data aisle;

PLC light control module: Receive and execute the control commands of the PLC main control module, control the components connected to the PLC light control module, report its own status information, and provide a secure data channel.

As an optional implementation of the embodiment of the present disclosure, the first PLC light control module includes a first control unit, a first light control unit and a first expansion unit, and the first control unit is connected to the first light control unit and the first expansion unit ; The first control unit is used to determine whether the control signal is a light control signal or a pole-holding application signal, and if it is a light-control signal, then send the control command to the first light-control unit; if it is a pole-holding application signal, send the control command Send to the first expansion unit; the first light control unit is connected to the first street lamp component, and is used to perform light control operations according to the control instructions; the first expansion unit is connected to the first pole application component, and is used to perform corresponding operations according to the control instructions.

As an optional implementation of the embodiment of the present disclosure, the second PLC light control module includes a third control unit, a second light control unit and a second expansion unit, and the third control unit is connected to the second light control unit and the second expansion unit ; The third control unit is used to determine whether the control signal is a light control signal or a pole-holding application signal, and if it is a light-control signal, then send the control command to the second light-control unit; if it is a pole-holding application signal, send the control signal to Send to the second expansion unit; the second light control unit is connected to the second street lamp component, and is used to perform light control operations according to the control instructions; the second expansion unit is connected to the second pole application component, and is used to perform corresponding operations according to the control instructions.

As an optional implementation of the embodiment of the present disclosure, the third PLC light control module includes a fifth control unit, a third light control unit and a third expansion unit, and the fifth control unit is connected to the third light control unit and the third expansion unit ; The fifth control unit is used to determine whether the control signal is a light control signal or a pole-holding application signal, and if it is a light-control signal, send the control command to the third light-control unit; if it is a pole-holding application signal, send the control signal to Send to the third expansion unit; the third light control unit is connected to the third street lamp component, and is used to perform light control operation according to the control instruction; the third expansion unit is connected to the third pole application component, and is used to perform corresponding operation according to the control instruction.

As an optional implementation manner of the embodiment of the present disclosure, the light control operation includes but not limited to: street light on operation, street light off operation, street light dimming operation, voltage detection, current detection and fault detection. Thus, the switch control, dimming control, multi-level energy consumption management, energy consumption statistics, fault reporting, etc. of street lamps can be realized individually or in batches.

Specifically, each PLC light control module can be connected to street lamps, and can also be connected to the pole-holding application to receive and execute the control commands of the PLC main control module, control the switching and dimming of street lamps, report its own status information, and control the power of the pole-holding application Provision and provide secure data channels.

As an optional implementation of the embodiment of the present disclosure, the street lamp management platform; the street lamp management platform is used to send management instructions to the PLC main control module; the PLC main control module sends control signals through the signal terminal of the PLC main control module in the following manner : PLC main control module, specifically used for receiving management instructions, and sending control signals through the signal terminal of the PLC main control module according to the management instructions.

Among them, the street lamp management platform is used for switching control of street lamps, dimming control, multi-level energy consumption management, energy consumption statistics, fault reporting, power control and energy management of third-party pole applications, and third-party pole application Data communication management. Specifically, the street lamp management platform can be a remote platform, which can realize the switching and switching of 220/380V AC and 36V DC on the main line of the street lamp through the PLC main control module, and at the same time communicate with the PLC lamp control module based on the power line carrier to realize the control of the street lamp. Lighting and dimming; the main circuit of the street lamp realizes uninterrupted power supply throughout the day, and the PLC light control module provides power and data communication services for various pole applications; thus, flexible street lamp energy efficiency management, status self-inspection, and provision for pole applications can be realized. Uninterruptible power supply and data channel, while the entire communication system adopts security encryption technology. At this time, the PLC main control module is used to receive and execute the control instructions of the street light management platform, control the control switch of the main line of the route, control the switch and dimming of street lights individually or in batches, check the status of each PLC light control module and report The street light management platform controls the power supply of the pole application and provides a secure data channel.

When working, after the first PLC light control module receives the control signal sent by the PLC main control module, it is judged whether the identification of the component to be controlled in the control signal is a component connected to the first PLC light control module, and if so, according to the control If not, the control signal is sent to the input terminal of the second PLC light control module through the output terminal of the first PLC light control module; so that the second PLC light control module receives the control signal and judges the control signal. Whether the identification of the component to be controlled is a component connected to the second PLC light control module, if yes, operate according to the control instruction; if not, send the control signal to the third PLC light through the output terminal of the second PLC light control module The input terminal of the control module; thus the third PLC light control module receives the control signal, and judges whether the component to be controlled in the control signal is a component connected to the third PLC light control module, and if so, operates according to the control instruction. At this time, the first PLC light control module further includes: a second control unit; the second control unit is configured to send a control signal to the input terminal of the second PLC light control module. The second PLC light control module further includes: a fourth control unit; the fourth control unit is configured to send a control signal to the input terminal of the third PLC light control module.

Specifically, the present disclosure transmits the control signal in this way, and the control signal can be sequentially transmitted from the PLC main control module to each PLC light control module, and the signal is relayed through each PLC light control module to ensure the stability of the signal performance, so as to achieve long-distance transmission and control.

Wherein, the function of the first isolator is to ensure that the PLC communication between the PLC main control module and the first control unit of the first PLC light control module is not disturbed by external signals, and the synchronization does not interfere with external communication. Similarly, the function of the second isolator is to ensure that the PLC communication of the third control unit of the second PLC light control module is not interfered by external signals, and the synchronization does not interfere with external communication. Similarly, the function of the third isolator is to ensure that the PLC communication of the fifth control unit of the third PLC light control module is not interfered by external signals, and the synchronization does not interfere with external communication.

Of course, in order to ensure the stable transmission of signals, if there are other PLC light control modules after the third PLC light control module, as an optional implementation of the embodiment of the present disclosure, the fourth isolator; the fourth isolator is set On the A line between the output end of the control switch and the output end of the third PLC light control module; the third PLC light control module also includes: a sixth control unit; the sixth control unit is used to send the control signal to the subsequent The input terminal of the light control module. Wherein, the function of the fourth isolator is to ensure that the PLC communication of the PLC light control module after the third PLC light control module is not disturbed by external signals, and the synchronization does not interfere with external communication.

As an optional implementation of the embodiment of the present disclosure, when data transmission is performed between the pole holding application and the PLC main control module, a secure channel can be established based on the PLC communication channel provided by the present disclosure to ensure the security of data transmission, for example, The session key is negotiated between the pole holding application and the PLC main control module or the street lamp management platform, and when transmitting data, the session key is encrypted for transmission.

It can be seen that the single-phase street lamp control system provided by the embodiment of the present disclosure adopts PLC as a wired communication method without additional wiring; at the same time, it supports 220V AC and 36V DC power as a communication carrier, and the system can use 220V AC power supply at night, and the system can use 220V AC power supply during the day. Uninterruptible power supply, using 36V DC power supply; can realize independent switch and independent dimming control of street lamps, and realize flexible energy management, such as 12 o'clock in the evening to 6 o'clock in the morning, street lamps run with low power consumption; in addition, it can also be used for pole-holding applications Provide 36V DC/220V AC power supply; at the same time, it can provide data communication channels for pole applications. Furthermore, the single-phase street lamp control system provided by the embodiments of the present disclosure can realize a self-inspection function and report the abnormal state of the street lamp, instead of manual inspection.

Therefore, the single-phase street lamp control system provided by the embodiment of the present disclosure solves the independent switch control and dimming control problems of traditional street lamps, realizes flexible energy consumption management; Hidden danger) The problem that power failure during the day cannot supply power to the pole application; solves the security communication problem of the traditional street lamp pole application; solves the problem that the traditional street lamp needs manual inspection.

Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present disclosure. Variations, modifications, substitutions, and modifications to the above-described embodiments are possible within the scope of the present disclosure. The scope of the present disclosure is defined by the appended claims and their equivalents.

Claims

A control system for a three-phase street lamp, comprising: an AC transformer, a DC transformer, a control switch, a PLC main control module, a first PLC light control module, a second PLC light control module, a third PLC light control module, and a first isolator , the second isolator and the third isolator;

The first output end of the AC transformer is connected to the first input end of the control switch, the second output end of the AC transformer is connected to the input end of the DC transformer, and the first output end of the AC transformer includes N line, A line, B line and C line, the first input end of the control switch includes: N line, A line, B line and C line, and the second output end of the AC transformer includes: N line, A line line, B line and C line, the input end of the DC transformer includes: N line, A line, B line and C line;

The output end of the DC transformer is connected to the second input end of the control switch, the output end of the DC transformer includes an N line and an L line, and the second input end of the control switch includes an N line and an L line;

The control end of the PLC main control module is connected to the control end of the control switch;

The signal end of the PLC main control module is connected to the input end of the first PLC light control module, the signal end of the PLC main control module includes an N line and an A line, and the input end of the first PLC light control module Including N line and A line;

The input end of the first PLC light control module is connected to the output end of the control switch; the output end of the control switch includes: N line, A line, B line and C line, and the first PLC light control module The N line and the A line of the input terminal are respectively connected to the N line and the A line of the output end of the control switch;

The input end of the second PLC light control module is connected to the output end of the control switch, the input end of the second PLC light control module includes N line and B line, and the input end of the second PLC light control module The N line and the B line respectively correspond to the N line and the B line connected to the output end of the control switch;

The input end of the third PLC light control module is connected to the output end of the control switch, the input end of the third PLC light control module includes N wire and C wire, and the input end of the third PLC light control module The N line and the C line respectively correspond to the N line and the C line connected to the output end of the control switch;

The first isolator is arranged on the A line between the output terminal of the control switch and the signal terminal of the PLC main control module;

The second isolator is arranged on the B line between the output end of the control switch and the output end of the first PLC light control module;

The third isolator is arranged on the C line between the output end of the control switch and the output end of the second PLC light control module;

The control switch is configured to receive a first switching instruction sent by the PLC main control module, and connect the output end of the AC transformer to the output end of the control switch according to the first switching instruction, and the AC transformer The N line, A line, B line and C line corresponding to the N line, A line, B line and C line connected to the output end of the control switch;

The control switch is also used to receive a second switching instruction sent by the PLC main control module, and connect the output end of the DC transformer to the output end of the control switch according to the second switching instruction, and the DC The N line at the output end of the transformer is connected to the N line at the output end of the control switch, and the L line at the output end of the DC transformer is respectively connected to the A line, B line and C line of the control switch;

The PLC main control module is configured to send a control signal through a signal terminal of the PLC main control module, wherein the control signal includes an identification of a component to be controlled and a control instruction;

The first PLC light control module is used to receive the control signal, determine whether the component to be controlled is identified as a component connected to the first PLC light control module, and if so, operate according to the control instruction ; If not, sending the control signal to the input end of the second PLC light control module through the output end of the first PLC light control module;

The second PLC light control module is used to receive the control signal, determine whether the component to be controlled is identified as a component connected to the second PLC light control module, and if so, operate according to the control instruction ; If not, sending the control signal to the input end of the third PLC light control module through the output end of the second PLC light control module;

The third PLC light control module is used to receive the control signal, determine whether the component to be controlled is identified as a component connected to the third PLC light control module, and if so, operate according to the control instruction .
The system according to claim 1, wherein the first PLC light control module includes a first control unit, a first light control unit and a first expansion unit, and the first control unit is connected to the first light control unit and said first extension unit;

The first control unit is used to determine whether the control signal is a light control signal or a pole holding application signal, and if it is a light control signal, send the control command to the first light control unit; if it is a pole holding applying a signal, sending the control command to the first expansion unit;

The first light control unit is connected to the first street lamp component, and is used to perform a light control operation according to the control instruction;

The first extension unit is connected to the first pole application component, and is used for performing corresponding operations according to the control instructions.
The system according to claim 2, wherein the first PLC light control module further comprises: a second control unit;

The second control unit is configured to send the control signal to the input terminal of the second PLC light control module.
The system according to any one of claims 1 to 3, wherein the second PLC light control module includes a third control unit, a second light control unit and a second expansion unit, and the third control unit is connected to the a second light control unit and the second extension unit;

The third control unit is used to determine whether the control signal is a light control signal or a pole holding application signal, and if it is a light control signal, send the control command to the second light control unit; if it is a pole holding applying a signal, sending the control signal to the second extension unit;

The second light control unit is connected to a second street lamp component, and is used to perform a light control operation according to the control instruction;

The second expansion unit is connected to the second pole application component, and is used for performing corresponding operations according to the control instructions.
The system according to claim 4, wherein the second PLC light control module further comprises: a fourth control unit;

The fourth control unit is configured to send the control signal to the input terminal of the third PLC light control module.
The system according to any one of claims 1 to 5, wherein the third PLC light control module includes a fifth control unit, a third light control unit and a third extension unit, and the fifth control unit is connected to the a third light control unit and the third extension unit;

The fifth control unit is used to determine whether the control signal is a light control signal or a pole holding application signal, and if it is a light control signal, send the control command to the third light control unit; if it is a pole holding applying a signal, sending the control signal to the third extension unit;

The third light control unit is connected to a third street lamp component, and is used to perform a light control operation according to the control instruction;

The third extension unit is connected to a third pole application component, and is configured to perform corresponding operations according to the control instructions.
The system according to claim 6, further comprising: a fourth isolator;

The fourth isolator is arranged on the A line between the output end of the control switch and the output end of the third PLC light control module;

The third PLC light control module further includes: a sixth control unit;

The sixth control unit is configured to send the control signal to an input terminal of a subsequent light control module.
The system according to any one of claims 2 to 7, wherein the street light on operation, street light off operation, street light dimming operation, voltage detection, current detection and fault detection.
The system according to any one of claims 1 to 8, further comprising: a street lamp management platform;

The street lamp management platform is used to send management instructions to the PLC main control module;

The PLC main control module sends a control signal through the signal end of the PLC main control module in the following manner:

The PLC main control module is specifically configured to receive the management instruction, and send a control signal through the signal terminal of the PLC main control module according to the management instruction.