一种基于多传感器融合的LED灯具智能调光系统

摘要

This paper researched an LED intelligent dimming system based on multi-sensor fusion technology . This system firstly calculated the weighted average value of measurements of multiple photosensitive sensors , then compared it with the setting value , so that the PWM control signal could be adjusted to implement intelligent LED light dimming .Meanwhile , infrared sensor was applied to detect whether there are people in the current environment or not , in order to control the LED lamps shutting off or turning on automatically .This system could mainly be applied in the place where there are lots of lamps and longtime lighting is needed such as classrooms and offices .Secondary energy saving of LED lamps was implemented in this system .%研究基于多传感器融合的LED灯具智能调光系统，将多传感器融合的测量结果进行加权融合作为检测输入值，与给定比较后调节PWM信号实现智能调光，使控制更加精确；同时，红外传感器的应用使得在室内无人时控制灯具的关断，并可在关断状态下检测到人时打开照明灯具。所研究的LED灯具智能调光系统主要应用于灯具数量众多和照明时间长的教室和办公场所等地，实现在LED灯具应用上的“二次节能”。