基于RSSI的煤矿井下定位技术

Positioning Technology Based on RSSI in Coal Mine

摘要: 研究了基于无线局域网架构的无线信号强度煤矿井下定位技术。首先分析了无线信号在地面和煤矿井下传输信道模型的差异,然后介绍了经验与估计数据库相结合的信号地图构建方法,最后引入了加权定位算法,实验结果证明此种方法可以有效改善定位精度,以便更好地满足煤矿生产需求。
- 无线局域网 /
- 信号强度 /
- 定位技术 /
- 加权算法
Abstract: This paper describes wireless signal strength based on WLAN positioning technology in coal mine.Firstly,it analyzes the difference of radio channel mode between transmitted in coal mine and transmitted on the ground.After that,it introduces an establishment method of radio signal map which is combined experiences database with estimations database.Finally,it turned out that the positioning accuracy is improved efficiently by introducing into weighting algorithm,which can satisfy production request in coal mine.
- WLAN /
- signal strength /
- positioning technology /
- weighting algorithm

[1]	张明华,张申生,曹健.无线局域网中基于信号强度的室内定位[J].计算机科,2007,34(6):68-71,75.
[2]	魏洪兴,王晓晖,王田苗.基于信号强度的无线局域网匹配定位算法[J].计算机工程,2008,34(19):107-108,132.
[3]	KARL H,WILLING A.Protocols and architectures forwireless sensor networks[M].邱天爽,唐洪,李婷,等译.北京:电子工业出版社,2007.
[4]	董梅,杨曾,张健,等.基于信号强度的无线局域网定位技术[J].计算机应用,2004,24(12):49-52.
[5]	杨志明.算方法及其MATLAB实现[M].西安:西安电子科技大学出版社,2009.