Research On Intelligent Lighting System Based On LED Light Source

With the rapid development of society and the improvement of human’s living standards,the demand of convenience, intelligence, energy conservation of home using has becomemore and more strong. Under the above circumstance, the Intelligent Home Furnishing, whichcan bring the greatest degree of convenience, comfort and safety, has come into being. As apart of Intelligent Home Furnishing, the Intelligent Lighting System is usually composed oftwo kinds of bus system, field bus system and power line carrier system. As for theshortcoming of high load requirement, complicated wire placing and poor energy-savingeffect, they can not meet the national requirement for energy saving and emission reduction.Therefore, the research of Intelligent Lighting System on the basis of connection of wirelesscommunication network and new lighting source will lead to a good practical significance anda broad development prospect.Zigbee technology, the new booming near-distance two-way wireless communicationtechnology, has many advantages such as simple circuit, configured work mode, low energyconsumption and price and it is often used in the application of automatic control. Meanwhile,with the improvement of LED production techniques, the advantages of no pollution onworking, long continuous working hours, high photoelectric conversion efficiency arebecoming increasingly obvious, which saves quantity of energy and helps to ease the currentenergy shortage and environmental crisisThis thesis focuses on the research of Intelligent Lighting System based on the Zigbeetechnology and white lighting source, consists the introduction of background knowledge, thehardware implementation, the software implementation, the system integration debugging andperformance test, etc. Background knowledge introduces the main features of the currentdevelopment of intelligent lighting, ZigBee technology and LED; the hardware system iscomposed of SZ05series wireless data communication module, the STC microprocessor, theLED driver chip A910and infrared remote data transceiver, etc. The schematic design andPCB layout of circuit are also completed. The software system implements the design ofautomatic adjustment of LED lights, the data receiving and transmitting of Zigbee module andthe infrared data decoding program on conditions of background lights etc. The systemfunctions are tested and verified by experiments. The results show that it has goodperformance and achieves the design specifications.