基于物联网的智能LED照明集中控制系统

针对传统照明系统不能及时采集照明信息和按需控制照明状态的问题,设计了一套基于物联网的智能LED照明集中控制系统.采用STM32系列芯片作为微控制处理器,搭建了基于ZigBee的无线集中控制网络,采用光电传感器来检测环境的光照度,由明暗度或指令来自动调节LED路灯的照明方式.结果表明,系统数据和指令的传输误码率低于1%,能够在恒流状态下驱动LED路灯,功率调节范围为30%~100%之间,恒流偏差和调节误差均小于1%,远程控制和智能控制的延时分别在0.5和2 s以内.该系统可以实现对LED路灯照明的有效集中控制,具有一定的工程应用价值.

Intelligent LED lighting centralized control system based on Internet of Things

In order to solve the problem that the traditional lighting system can not timely collect the lighting information and control the lighting status according to requirements, a set of intelligent LED lighting centralized control system based on Internet of Things was designed. The STM32 chip was used as the micro control processor, and a wireless centralized control network based on ZigBee was constructed. The photoelectric sensors were used to detect the light intensity of environment, and the lighting mode of LED street lamp was automatically adjusted according to the brightness or instructions. The results show that the transmitted bit error rate of system data and instructions is less than 1%, the LED street lamp can be driven under the constant current condition, and the range of power regulation is between 30% and 100%. The constant current deviation and adjustment error are both less than 1%. Furthermore, the delay of remote control and intelligent control is less than 0.5 s and 2 s, respectively. Hence, the designed system can realize the effective centralized control of LED street lamp, and has better engineering application value.