基于北斗定位的铁路现场安全防护系统定位技术研究  

Analysis of Intelligent Safety Protection Positioning Technology for Railway Field Operation

作　　者：侯艳[1] 王安明[1] 李晴 Hou Yan;Wang Anming;Li Qing(Xi'an Railway Vocational and Technical Institute,Xi'an,Shaanxi 710026,China;Xi'an Rail Transit Group Operations,Xi'an,Shaanxi,710018)

机构地区：[1]西安铁路职业技术学院,陕西西安710026 [2]西安市轨道交通集团运营分公司,陕西西安710018

出　　处：《西安轨道交通职业教育研究》2024年第2期29-35,共7页Xi'an Rail Transit Vocational Education Research

基　　金：陕西省教育厅2022年度一般专项科研计划项目,铁路现场作业智能安全防护系统研究(编号:22JK0523)。

摘　　要：为解决传统铁路现场作业人员安全防护系统所暴露出的作业人员及列车位置信息不能及时实时获知,防护状态交互性缺乏等问题,本文提出一种基于北斗卫星定位技术的安全防护方案,通过卫星定位技术实时定位现场作业人员及列车的位置信息,传送给车站管理系统,经系统分析将相关信息传送至现场作业人员手持终端设备,根据实际情况发出列车预警信息,从而实现安全防护的目的。文章聚焦防护系统高精度定位技术,分析了卫星定位原理、分类及高精度卫星定位算法原理,基于STC15W4K56S4单片机搭建了定位数据采集系统,为验证定位算法的精度,借助串口调试工具在上位机对比了两种高精度定位算法一载波相位差分和伪距差分的定位精度,试验结果表明,载波相位差分定位算法具有更高的定位精度,可达厘米级,完全满足铁路现场作业人员安全防护的定位需求。In order to solve the problems that the traditional safety protection system for railway workers on the spot can not know the location information of workers and trains in time and the lack of interaction of the protection status,in this paper,a security protection scheme based on beidou satellite positioning technology is proposed,which uses satellite positioning technology to real-time locate the position information of field workers and trains and transmit it to station management system,through systematic analysis,the relevant information is transmitted to the hand-held terminal equipment of the operators on the spot,and the train early warning information is sent according to the actual situation,thus realizing the goal of safety protection,based on STC15W4K56S4 microcomputer,a positioning data acquisition system is built to verify the accuracy of the positioning algorithm,with the aid of serial port debugging tool,the positioning accuracy of two high precision positioning algorithms-carrier phase difference and pseudo-range difference is compared in the upper computer,it can reach centimeter level,fully meet the positioning requirements of safety protection for railway field workers.

关 键 词：铁路安全 北斗定位 伪距差分 载波相位差分 

分 类 号：U298[交通运输工程—交通运输规划与管理]