Solar led street lamp intelligent control system of the building and research

Solar LED street lamp system is a stand-alone photovoltaic system, the solar battery, storage battery, LED street lamp, charging circuit, discharge/drive circuit, controller of six parts. And battery in solar LED street lamp system is a hybrid system of important

solar LED street lamp system is a stand-alone photovoltaic system, the solar battery, storage battery, LED street lamp, charging circuit, discharge/drive circuit and the controller. Battery solar led street lamp system is one of an important part of the hybrid system, in the remaining charge capacity has important influence to the stability of the system. Solar led street lamp system controlled by the controller. During the day, the solar cells by light pole manufacturer of the battery charging circuit for buildings, and in the evening, the battery discharge driven led street lamp. Therefore, the design of the controller is very important. Often if the battery overcharge or overcharge, the battery life will be greatly reduced. In order to solve this problem, you can use the multipoint monitoring method to monitor battery charged the remaining capacity ( SOC) Charge/discharge method. In the process of discharge, as well as the controller in the process of charging, multipoint monitoring method can control output at different stages and different width of pulse width modulation signal, thus effectively avoid overdischarge. Finally, designed a solar controller hardware and control software of the system. When using a large number of stand-alone solar led street lamp, need timely and accurate understanding of the running state of every street lamp. To this end, we design a network solution based on CAN bus. Street lamp controller of CAN bus was designed and implemented the hardware interface, and implements the PC monitor.