Rssi Wireless Location-based Data Processing And Realization

With the rapid development of wireless communication technology, Wireless location technology has been concerned. GPS has many features, Such as navigation, surveying, timing, etc. But, GPS technology can only be used outdoors, To develop a suitable indoor wireless positioning system is another hot spot of the current study.On the basis of the RSSI-based wireless location, This paper cites the classic model of the indoor electromagnetic wave transmission and analysis of several indoor positioning algorithms. Based on SQL Server2000and Visual Basic6.0and Matlab platform, This paper has developed a wireless positioning data processing system.In a particular environment, ZigBee wireless sensor network system has been tested and Positioning algorithm precision test was carried out in a particular environment.This article is divided into five chapters, in accordance with the order of chapters, the following describe:The first chapter introduces the positioning of knowledge and applications and Basic knowledge of Wireless Sensor Networks. It also presents a wireless signal transmission and their advantages and disadvantages. Finally, We introduced the significance of the topic of the paper.The second chapter introduces ray model of the electromagnetic wave transmission in free space and describes multilateral algorithm based on Ranging and the centroid algorithm based on non-ranging.It analysis realization of the localization algorithm. It also analysis several positioning algorithms and way of realization and get the optimal algorithm in the special environment.The third chapter introduces positioning algorithm and implementation of indoor wireless transmission model and describes two classic model of the wireless electromagnetic transmission in indoor environment. It also Analysis Several positioning algorithms and Way of realization and get the optimal algorithm in the special environment. The fourth chapter describes the software development and implementation. At the same time, It also describes Connection between the software. Based on SQL Server2000and Visual Basic6.0and Matlab platform, This paper has developed a wireless positioning data processing system. In a particular environment, Zigbee wireless sensor network system has been tested.In conclusion, The fifth chapter summarizes all the work of this thesis and also point out that will do the work in the next period of time.