The Smart Home System Based On Zigbee Wireless Sensor Network Key Technology Research

With the continuous improvement of living standards,the public demands on the quality of life is not short of promotion.Especially in today's era of rapid development of science and technology,intelligent Home Furnishing entered people's life.At the present stage of intelligent Home Furnishing system are basically in accordance with the wired network model to establish the drawbacks of the model is the biggest wiring is very complex and has great influence on the system's scalability and simplicity.Therefore,the future development direction of the intelligent Home Furnishing system gradually with the development of wireless technology,wireless communication technology,short-range wireless intelligent Home Furnishing system will be widely used.ZigBee technology has the advantages of low power consumption,low cost,flexible networking and other advantages,the application of ZigBee wireless sensor network to a very large role in promoting the development of intelligent system based on Home Furnishing.ZigBee technology in intelligent home system undertakes the system data transmission,receiving and processing of multi task,how to better the will of ZigBee technology and intelligent home system fusion together need further study.Based on ZigBee wireless sensor network of smart home system design of the main task is the combination of the actual demand of,in the ZigBee protocol stack based on,the overall framework of the system research and the overall design scheme.The design of intelligent Home Furnishing function module of the system,but also need according to the specific tasks to perform,especially the sensor and controller model selection according to specific function.To ensure that the system can Home Furnishing intelligent temperature and humidity environment on indoor illuminationintensity for the collection of information timely and accurate,to ensure the implementation of early warning of indoor theft,fire and other dangerous situations.ZigBee wireless sensor network and intelligent Home Furnishing system combined to greatly expand its application range and application of stability and convenience.Based on this,the main content of this paper is divided into the following parts:The first chapter is the introduction,the overview of the research status are introduced,summarizes the intelligent Home Furnishing system at home and abroad;In the second chapter,the application status of ZigBee wireless sensor network is analyzed,and the ZigBee protocol specification and network topology structure are studied,which is the basis for the following chapters;The third chapter is the design of smart home system based on ZigBee technology.The main content of this chapter is the overall framework of the system and the various functional modules;Chapter four smart home system hardware design,the processor and ZigBee wireless chip for analysis and selection,connection method and study the CC2420 and processor design from control module,main control module,data processing module external circuit and secondary circuit module of data processing and research sensor circuit and voltage detection principle;The fifth chapter is the software design of smart home system,the establishment of embedded Web server,the design of Boa server in the CGI program,the study of transplanted CGIC library and embedded database SQLite.