采用超宽带和远距离无线通信的定位系统设计

Design of Localization System Based on Ultra-Wide Band and Long Range Wireless

针对GPS、北斗等无线定位系统不能实现室内定位的问题,采用超宽带和远距离无线通信技术设计一种室内定位系统。系统采用双边双程测距法、到达时间内三角质心优化算法提高测距和定位精度,采用LoRa技术进行基站间的数据传输。测试分析表明:定位系统在室内环境下工作稳定性好,可实现室内精确定位功能。

Aiming at the problem that GPS,Beidou and other wireless positioning systems can’t achieve indoor positioning,an indoor positioning system is designed by using ultra-wide band and longdistance wireless communication technology.The system uses the triangle centroid optimization algorithm in time of arrival to improve the ranging and positioning accuracy.LoRa technology is used for data transmission between base stations.The test and analysis shows that the positioning system has good stability in indoor environment,and can realize indoor precise positioning function.