地铁直流智能照明系统的调光应用分析

Dimming Application Analysis of Subway DC Intelligent Lighting System

地铁直流智能照明系统,采用DC220V为灯具供电,同时利用直流供电线路传递信号,其通信方式可以有曼彻斯特编码、降压式、直流电力线载波等,根据地铁照明的需求以及通信方式的差异,曼彻斯特编码通信为最佳的通信方式,利用直流电源柜的调压功能进行指令传输,实现分区调光。同时,通过传感器与直流电源柜的联动实现按需照明、人性化照明。

Subway DC intelligent lighting system uses DC220V to supply power to the lamps and at the same time uses DC power supply lines to transmit signals.Its communication modes can include Manchester coding,Buck dimming,DC power line carrier and other.According to the requirements of subway lighting and the difference of communication modes,Manchester coding communication is the best.Using the voltage regulation function of DC power cabinet to transmit instructions,to achieve partition dimming.At the same time,through the linkage of sensors and DC power cabinet to realize on-demand lighting,humanized lighting.