Communication Networking And Control In Intelligent Streetlight Segment

According to domestic and foreign research present situation,development trend of street lamps and the development of the development of the national "wisdom city" plan,in view of the existing in the traditional street lamp system adjusting control ability is insufficient,backward way open to turn off the lights,lamps and lanterns does not have lack of real-time condition monitoring and insufficient energy saving scheme,etc.This paper studies a solution of intelligent street light control system based on electric power carrier communication.In order to achieve the purpose of street lamp energy saving and convenient management,the system adopts the following methods:(1)Set up an intelligent street lamp networking control system with GPRS wireless communication technology as the primary network and low-voltage power carrier communication as the secondary network;(2)Define a unique address for each street lamp terminal controller,and realize the dimming control and data collection of the upper computer on the single/multiple lamp controller;(3)Using PWM technology to realize the terminal for street lamp brightness adjustment,according to user commands to adjust the brightness of the lamp,so as to achieve "secondary energy saving " effect.The system consists of four parts: cloud server,centralized control terminal,single/multiple lights controller and client.Through this system,users can conveniently carry out remote control,status monitoring,brightness adjustment and data collection for each road section and single street light,improving the control mode of traditional street light and improving the energy saving efficiency of street light.This paper firstly introduced the street lamp control system and its networking mode from the research significance and current situation home and abroad.And then analyzes and summarizes the requirements of the system is presented,and the key technologies involved in the system,such as power carrier,PWM dimming and address setting,are discussed,and the feasibility of the scheme is analyzed and studied.Again the framework and principle of the hardware parts of the system and the software design process are introduced,and analyzed the system used in the Modbus protocol.Finally,the system dimming control,data acquisition,precision communication and other functions were tested.The system has stable function,good experience and reached the design requirements,has a broad social and commercial prospects.