铁路站场巡检人员多环节地图匹配定位算法  

Multi-link Map-matching Positioning Algorithm for Inspection Personnel in Railway Station & Yard

作　　者：郏东耀[1] 黄轲[1] 

机构地区：[1]北京交通大学电子信息工程学院,北京100044

出　　处：《铁道学报》2013年第9期52-58,共7页Journal of the China Railway Society

摘　　要：由于铁路站场的特殊性和复杂性,现有的GPS定位算法难于满足站场巡检人员定位精度的要求。本文在分析铁路站场特性的基础上,依据站场的拓扑结构特点设计多环节地图匹配算法。即在无岔区段采用位置点匹配算法,而在有岔区段采用基于曲线拟合的地图匹配算法;在此基础上为进一步提高匹配精度和定位准确度,采用优先定位法进行定位匹配。实验结果表明,采用这种多环节地图匹配算法可使得铁路站场巡检人员定位误差率降低到3.7%,提高了地图匹配的精度和效率,满足了铁路站场巡检人员的定位需要。Because of particularity and complexity of the railway station ＆ yard,the existing GPS positioning algorithms are unable to meet the requirements of positioning accuracy.Analyzing the features of stations and yards,the multi-link map matching positioning algorithm based on the track network topology characteristics was introduced in this paper.The point of position matching algorithm was used for no-switch sections and the curve fitting map matching algorithm for switch section.In order to further improve the matching and positioning accuracy,the priority positioning algorithm was turned to.Experiments show that by use of the multilink map matching positioning algorithm,the positioning error rate in railway stations and yards is reduced to 3.7 ％,the accuracy and efficiency of map matching are raized and positioning requirements for inspection workers are satisfied.

关 键 词：GPS定位 多环节地图匹配算法 优先定位法 定位精度 

分 类 号：F407.67[经济管理—产业经济] U283.5[交通运输工程—交通信息工程及控制]