UWB地铁轨道巡检车定位系统设计  

Design of UWB Metro Track Inspection Vehicle Positioning System

作　　者：许勇[1] 邵浩东 XU Yong;SHAO Hao-dong(China Railway Siyuan Survey and Design Group Co.,Ltd.,Hubei Wuhan 430063,China;Wuhan University,Hubei Wuhan 430070,China)

机构地区：[1]中铁第四勘察设计院集团有限公司,湖北武汉430063 [2]武汉大学,湖北武汉430070

出　　处：《机械设计与制造》2023年第5期138-140,145,共4页Machinery Design & Manufacture

基　　金：国家重点研发计划—城市地下基础设施运行综合监测关键技术研究与示范(2018YFB2100900)。

摘　　要：针对地铁轨道环境中,传统定位方法无法满足轨道巡检车实时定位需求的问题,设计了一种基于UWB(Ultra Wide Band)的测距与定位系统。该系统在地铁隧道中布置固定UWB基站,轨道巡检车上布置UWB标签,标签通过双边双向测距法测得与最近两基站之间的距离,对得到的距离解算得出轨道巡检车与最近基站的水平距离,进而实现轨道巡检车相对于基站的定位。最后,进行模拟环境实验,结果表明该系统定位精度可达到20cm,定位速率可达50Hz,能满足中低速轨道巡检车实时定位需求。In the railway environment,railway inspection vehicle with traditional positioning method cannot meet the real-time positioning requirements.In this paper,we design a UWB-based ranging and positioning system.in the system,fixed base stations are arranged in railway tunnel,and UWB tag are arranged on the rail inspection vehicle.The distance between tag and two nearest base stations is measured by bilateral two-way ranging method.Therefore,we can work out the horizontal distance between rail inspection vehicle and the nearest base station,which enables the rail inspection vehicle to be positioned relative to base stations.At last,the test is carried out in simulation environment.The positioning accuracy of the positioning system can reach 20cm and the positioning rate can reach 50Hz,which can meet the real-time positioning requirements of low-and mediumspeed railway inspection vehicles.

关 键 词：UWB定位 方案模型 误差分析 模拟实验 

分 类 号：TH16[机械工程—机械制造及自动化] U239[交通运输工程—道路与铁道工程]