基于PLC的智能路灯系统设计

Design of intelligent street lighting system based on PLC

为了降低城市照明系统夜晚工作中能源的浪费,提出了一种无线通信网络和电力载波相结合的改造方案。该系统架构分三层,后台服务器通过核心网控制集中控制器;每台集中控制器通过接入网控制路灯;路灯节点作为物联网的终端接入点,直接控制路灯亮灭和亮度。系统融合了无线通信、电力载波、LED电路恒流驱动、PWM调光等技术,并提出了控制系统的Web软件设计方案。应用结果表明,该系统节能效果明显、运行可靠稳定。

In order to reduce energy waste in the city lighting system at night, a modifilication scheme which combines the wireless communication network with power line carrier is put forward in this paper. The system framework is divided into three layers： the background server controls the centralized controllers through the core network, each centralized controller controls the lamps through the access network, and street lamp nodes work as the terminal access points of IOT to control the on-off and brightness of lamps directly. The system combines the technologies of wireless communication, power line carrier, LED circuit constant current drive and PWM dimming. A Web software design program of control system is proposed also in this paper. The application results show that the system can reduce the electric energy consumption obviously, and runs stably and reliably.