基于RSSI测距的室内定位技术  

Research on an Indoor Positioning Technology Based on RSSI Ranging

作　　者：王琦[1] 

机构地区：[1]西安电子科技大学电子工程学院,陕西西安710071

出　　处：《电子科技》2012年第6期64-66,78,共4页Electronic Science and Technology

摘　　要：搭建了基于ZigBee技术的室内定位实验平台,以实验室楼道为室内场景进行了接收信号强度(RSSI)测距和定位实验研究。首先对测距实验采集到的数据使用线性回归分析拟合出当前环境的具体测距模型,并对信标和未知节点进行软件开发,实现了基于RSSI的定位算法。经过定位实验精度评估,文中算法的平均定位误差为2.3 m,满足大多室内场景要求。An indoor positioning experimental platform based on ZigBee technology was constructed. In the la- boratory corridor, two experiments including RSSI（ Received Signal Strength Indicator） ranging and positioning were done on the platform. First, linear regression analysis is used on the data collected from the RSSI ranging experi- ment to obtain the specific ranging model in the current environment. Then a positioning algorithm based on RSSI has been implemented by designing software for both beacon and unknown nodes. Positioning accuracy evaluation results show that the algorithm proposed by the paper has its average positioning error of 2.3 m which meets the requirement of most indoor scenes.

关 键 词：室内定位 无线传感器网络 RSSI测距 线性回归分析 

分 类 号：TN92[电子电信—通信与信息系统]