Based On Embedded Distributed Solar Lighting System

Intelligence distributed solar lighting system is a key technique in the background that energy-saving, environmental protection are encouraged all over the world. The distributed solar lighting system based on embedded is a cross of embedded technology, sensor and network. With the development of these technologies, stability and adoptability of the system have been greatly increased.In this paper, a distributed solar lighting system is designed, with Contex MO LPC11C14from NXP as core controller and LED lighting wildly used now. The system works with an angle tracking circuit to increase the solar conversion efficiency, the solar energy charging up the battery and provides the power for lighting, PID control algorithm to increase stability. Otherwise, the LED lighting can work even the battery is short of power because of rainy days, with the help of the Mains. A CAN node is designed to receive and transmit data to CAN-Bus and controlled remotely through net.Some new type ICs are used in the system, which make the circuit simple and excellent in performances, and decrease the size, power consumption and cost. The software algorithm is brief but stable.The solar lighting system proposed in the paper combine the theory and practice, the hardware and software, the principle and application. The testing system is stable and reliable, and has met the design requirement.