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Distributed streetlight energy-saving control system

An energy-saving control system and distributed technology, applied in the field of electric lighting, can solve the problems of AC power supply interference, complex system, large investment, etc., and achieve the effect of strong anti-interference ability, small data transmission amount, and long transmission distance.

Inactive Publication Date: 2005-11-09
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned first communication method can only control one line, but cannot control a single pole or a single lamp, and the energy-saving effect is not significant; dedicated line communication is not popular in the industry due to too much investment and troublesome construction; the use of power line carrier and the use of wireless The mixed communication method with power carrier still has the following disadvantages: 1. Due to the serious interference of the AC power supply, it is easy to cause malfunction and poor reliability; 2. Two-way communication, the system is more complicated and the investment is too large. The estimated investment is about 200,000 yuan per kilometer

Method used

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  • Distributed streetlight energy-saving control system
  • Distributed streetlight energy-saving control system
  • Distributed streetlight energy-saving control system

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Embodiment Construction

[0035] Such as figure 1 As shown, the present invention is made up of main frame 1, industrial control computer 2, slave 3 and management software. The system power is input to the host 1, and the management and control of the host are realized through the computer management software. When lighting control is required, the industrial control computer 2 issues a command, and the host 1 outputs power to each slave 3. Since the host 1 does not issue a lighting control command , the slave 3 is disconnected, and the street lamps are not on. When the host 1 issues a lighting control command (the command is sent through the lighting circuit), each slave 3 receives the control command, and each slave 3 turns on the power switch according to the control command to realize lighting control. When the host sends a command, the host first detects the zero-crossing point of the lighting power supply through the voltage comparator set in the host circuit, and then controls the thyristor SC...

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Abstract

This invention discloses a street lamp energy-saving control system including a host, an industrial computer and slave computers characterizing in taking CPU as the core to be matched with a peripheral storage unit, a display terminal, an input terminal, a communication interface, a zero-cross voltage test unit, a voltage phase angle control unit and a current detection unit to compose the host, the slave computer is composed of a CPU, an AC phase angle test unit set on the fracture, a network voltage test unit and a control relay connected on the communication port. The host controls the phase angle after the voltage passing through zero to generate data signals and sends them to the slave to realize the control to the various working states of street lamps.

Description

Technical field: [0001] The invention relates to the technical field of electric lighting, and relates to a circuit control system for general electric light sources, in particular to an energy-saving control system for urban street lamps. Background technique: [0002] Street lights in cities in my country are basically controlled by ordinary switches, and the waste of electric energy is very serious. In order to change this status quo, some cities try computer network and communication technology to carry out centralized control, monitoring and management of street lights. The system structure currently used is basically composed of a central control room and substations, and the communication methods are different, which can be divided into the following categories: 1. Wireless private network; 2. Wireless and electric carrier; 3. Carrier. The wireless private network is a wireless control system composed of a host and several extensions. The hybrid method of wireless a...

Claims

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Application Information

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IPC IPC(8): H05B37/00
CPCY02B20/40
Inventor 刘华王晓刚高星辉
Owner GUANGZHOU UNIVERSITY
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