| With the rapid development of modern technology,the number of city street lamps is increasing,and the power consumption of the city street lamp system is also increasing.The traditional street lamp control is mainly settled in time control mode,the control room of the street lamp can only realize the time switch of the daily street lamp,and its control mode can not adjust the lighting time and brightness of the street lamp,and it also can not reflect the working state of the lighting facilities in time,so that the maintenance work is very passive.Therefore,it is of great significance to study the new street lamp management mode and to realize the timely and overall control of the lighting facilities and to obtain the status information of the system equipment at any free time.In order to solve the problems of traditional street lamps management,control and resource waste,and so on,a system that has the function of intelligent and real-time monitoring has been proposed in this design.This design uses ZigBee to realize the information transmission,and the PC Labview control interface can not only real-time monitor the work of street lights,but also issue the remote control commands to control the work of street lamps.The whole system consists of the following three parts: the high efficiency LED power driver module,the upper computer real-time monitoring interface and the wireless communication network module.Among them,motherboard is the Boost-LLC two drive circuits,and the key parameters are optimized to meet the full range dimming;the host computer is responsible for the real-time monitoring of road conditions,a corresponding control instruction is issued according to different working conditions of street lamp demand;the Zigbee network module send and receive the control commands,then the corresponding lamp dimming changes the output signal of the PWM,the Zigbee terminal module is equipped with sensors to collect the street lamp work information and display the data feedback from the host computer through the wireless communication network and the serial port.Finally,in the laboratory,a LED street lamp monitoring system with a power of 120 W is designed,in view of the actual road conditions,the related simulation experiments are carried out.The entire system is stable,no flicker,small noise,in addition,the whole circuit has the function of fault detection.Its high efficiency,environmental protection,intelligent control features also meets the development requirements of the future smart city. |