›› 2012, Vol. 25 ›› Issue (6): 64-.

• 论文 • 上一篇    下一篇

基于RSSI测距的室内定位技术

王琦   

  1. (西安电子科技大学 电子工程学院,陕西 西安 710071)
  • 出版日期:2012-06-15 发布日期:2012-08-23
  • 作者简介:王琦(1986—),男,硕士研究生。研究方向:物联网,无线传感器网络。

Research on an Indoor Positioning Technology Based on RSSI Ranging

 WANG Qi   

  1. (School of Electronic Engineering,Xidian University,Xi'an 710071,China)
  • Online:2012-06-15 Published:2012-08-23

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。

关键词: 室内定位, 无线传感器网络, RSSI测距, 线性回归分析

Abstract:

An indoor positioning experimental platform based on ZigBee technology was constructed.In the laboratory 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 experiment 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.

Key words: indoor positioning;WSN;RSSI ranging;linear regression analysis

中图分类号: 

  • TN92