LKJ无线换装车地数据传输关键技术研究  

Research on Key Technologies of LKJ Remote Reloading Process Between Train and Ground

作　　者：何之煜 李辉 HE Zhiyu;LI Hui

机构地区：[1]中国铁道科学研究院集团有限公司通信信号研究所,北京100081

出　　处：《铁道通信信号》2023年第5期67-71,共5页Railway Signalling & Communication

摘　　要：针对既有LKJ车载数据人工换装方式费时费力、效率低下等问题,研究通过无线通信网络将LKJ车载数据从地面传输至车载。首先,通过对移动公网(4G/5G)、铁路专网(GSM-R)和无线局域网(WLAN)进行综合比较,选择移动公网作为LKJ无线换装车地通信的载体;然后,通过与SSL VPN的对比,确定采用IPSec VPN技术建立车地通信安全传输通道;最后,在实验室搭建LKJ无线换装车地通信测试环境进行算法验证。测试结果表明:换装业务数据以密文形式传输,验证了车地通信是通过安全传输通道进行的。In view of the problems of time-consuming,laborious,and inefficient of the existing manual LKJ on-board data reloading method,a wireless communication network was studied to transmit LKJ on-board data from the ground to the train.Firstly,through a comprehensive comparison of the mobile public network(4G/5G),railway private network(GSM-R)and wireless local area network(WLAN),mobile public network is selected as the carrier for LKJ wireless trainground communication.Then,by comparing with SSL VPN,IPSec VPN technology is adopted to establish a secure transmission channel for train-ground communication.Finally,the LKJ wireless train-ground communication test environment is established to test in the laboratory.The results show that the train-ground communication data is transmitted in the form of cipher text,which verifies that the train-ground communication is carried out through a secure transmission channel.

关 键 词：列车运行监控装置 无线换装 车载数据 无线通信网络 虚拟专用网 加密算法 

分 类 号：U284.48[交通运输工程—交通信息工程及控制]