基于LKJ运行数据的铁路基础设施检测车通用定位自动校正设备研究

Research on general-purpose automatic position rectification equipmentbased on LKJ operation data for railway infrastructure inspection cars

中国铁路成都局集团有限公司(简称:成都局)山区铁路隧道多、枢纽线路复杂,基础设施检测车定位精准度不高,全球定位系统(GPS,Global Positioning System)信号无法全程提供里程校正,人工校正和换线操作繁琐费力。文章提出基于列车运行监控记录装置(LKJ)运行数据的铁路基础设施检测车通用定位自动校正设备的设计,由安装在机车上的前端车载装置、安装在检测车上的LKJ运行数据接收装置和定位数据综合处理软件组成;能够实时获取LKJ运行数据,通过无线通信传输至检测车,自动完成线路转换和里程校正,为检测车提供较为精准的定位校正信息。该设备适用于成都局配属的各专业基础设施检测车,安装简单快捷,与LKJ装置的接口具备完善的电气隔离。目前,该设备已在成都局电务检测车和接触网检测车上开展初步动态测试,基本达到设计要求,提升了基础设施检测车的智能化程度,有助于提高检测作业质量和效率。

China Railway Chengdu Bureau Group Co.,Ltd.(referred to as Chengdu Bureau)has many railway tunnels in mountainous areas and complex lines within the hubs.The infrastructure inspection cars have some common problems such as low positioning accuracy,inability to provide effective mileage rectification with GPS signals throughout the whole inspection process,tedious and laborious operations of manual mileage rectification and line changing.The article proposes a design of a general-purpose automatic position rectification equipment for railway infrastructure inspection cars based on ocomotive LKJ operation data.The equipment consists of a front-end onboard device installed on the locomotive,an LKJ operation data receiving device installed on the inspection car,and a suite of comprehensive positioning data processing software.The equipment can obtain real-time operation data from the locomotive's LKJ equipment,transmit it to the inspection car via wireless communication,complete line changing and mileage correction automatically and provide precise position rectification data for the inspection car.This equipment is suitable for various specialty infrastructure inspection cars assigned by Chengdu Bureau,and easy and fast to install.At present,the equipment has undergone preliminary dynamic testing on one signal and comminications inspection car and one OCS inspection car,basically meeting the design requirements,improving the intelligence level of infrastructure inspection cars,and helping to improve the quality and efficiency of inspection operations.