地下空间人员定位自适应RSSI多信标点算法研究  

Research on Adaptive RSSI Multi Beacon Nodes Algorithm for Personnel Positioning in Underground Space

作　　者：任建新[1] 齐鸣 于训全 张进华 REN Jianxin;QI Ming;YU Xunquan;ZHANG Jinhua(School of Railway Engineering and Signal,Hunan Railway College of Railway Technology,Zhuzhou,Hunan 412000,China;Central and Southern China Municipal Design and Research Institute Co.,Ltd,Wuhan,Hubei 430010,China;High Speed Railway Safe-Operating Technology Research Institute of Hunan,Zhuzhou,Hunan 412000,China;Hunan Provincial Communications Planning,Survey and Design Institute Co.,Ltd,Changsha,Hunan 41000,China)

机构地区：[1]湖南铁路科技职业技术学院铁道工程与信息学院,湖南株洲市412000 [2]中国市政工程中南设计研究总院有限公司,湖北武汉430010 [3]湖南省高铁运行安全保障工程技术研究中心,湖南株洲市412000 [4]湖南省交通规划勘察设计院有限公司,湖南长沙410000

出　　处：《矿业研究与开发》2020年第10期169-173,共5页Mining Research and Development

基　　金：国家863科技计划资助项目(2013AA050401);国家科技型中小企业创新基金项目(11C26216203816).

摘　　要：考虑到城市地下空间内部环境结构复杂,对信号传播造成的损耗大,易产生反射、折射及多径效应,单纯采用RSSI三边测量定位算法本身定位精度不高,为提高人员精确定位,提升定位系统的智能化水平,基于RSSI的三边测量法(Trilateration)定位算法的原理,提出了自适应RSSI三边测量法,通过采用CC2430芯片,并实际应用于城市地下空间的人员定位中。通过仿真实践发现:自适应RSSI三边测量法定位效果显著提高,定位误差在1.2m以内,完全符合城市地下空间的定位需求;当信标节点(含引进的第三方信标)占总信标节点比例12.5%时定位过程即可趋于稳定。因此,改进算法对提高城市地下空间内人员智能化安全管理水平有着重要的意义。Due to the complex internal environment structure of urban underground space,the loss in signal propagation is large,and the reflection,refraction and multipath effects are easy to occur.The positioning accuracy of the positioning algorithm based on the RSSI trilateration positioning algorithm is not high.In order to improve the accuracy of personnel positioning and to enhance the intelligent level of the positioning system,based on the principle of the Trilateration positioning algorithm of RSSI,the adaptive RSSI trilateral measurement method was applied to the personnel positioning of urban underground space by using CC2430 chip.The simulation results show that,the positioning effect of adaptive RSSI trilateral measurement method is significantly improved,and the positioning error is within 1.2 m,which fully meets the positioning requirements of urban underground space.When the proportion of beacon nodes(including the imported third-party beacon)accounts for 12.5% of the total beacon nodes,the positioning process can be stabilized.Therefore,the improved algorithm is of great significance to improve the intelligent safety management level of personnel in urban underground space.

关 键 词：定位方法 地下空间 信号采集器 RSSI 多信标点算法 

分 类 号：U25[交通运输工程—道路与铁道工程] TM933[电气工程—电力电子与电力传动]