无线通信技术在高速列车网络控制系统中的应用  

Application of Wireless Communication Technology in High-speed Train Network Control Systems

作　　者：王华伟 高阳 李海龙 张子奇 刘聪[2] 董维金 WANG Huawei;GAO Yang;LI Hailong;ZHANG Ziqi;LIU Cong;DONG Weijin(National Engineering Research Center of Railway Vehicles,CRRC Changchun Railway Vehicles Co.,Ltd.,130062,Changchun,China;College of Communication Engineering,Jilin University,130012,Changchun,China)

机构地区：[1]中车长春轨道客车股份有限公司国家轨道客车工程研究中心,长春130062 [2]吉林大学通信工程学院,长春130012

出　　处：《城市轨道交通研究》2025年第2期140-143,147,共5页Urban Mass Transit

摘　　要：[目的]无线通信技术具有灵活性高、适应性强的特点,能够有效解决有线网络在高速列车运行环境中的诸多问题。但由于高速列车运行环境比较复杂,无线通信技术在该领域的应用仍面临很多挑战,需要对此进行深入研究。[方法]介绍了本次测试的硬件系统,阐述了NDT(网络传输时延测试仪)的构成及待测网桥设备的具体规格。设置了工况1(楼道环境)、工况2(贴近地面)和工况3(有铁门阻挡)3个模拟环境工况,采用测试软件得到了3个工况下信号吞吐量、无线通信单程传输时延的测试数据。对测试数据进行了分析,找出无线信号在3个工况下的传播特性和潜在干扰因素。[结果及结论]3种工况对无线信号传输的信号吞吐量和传输时延均有一定程度的影响,车厢间的金属物质会对无线电波产生显著的屏蔽效应。工况1下无线信号的表现最优,工况2次之,工况3最差。[Objective]Wireless communication technology,known for its high flexibility and strong adaptability,can effectively address many issues associated with wired networks in the high-speed train operational environment.However,due to the complex nature of this environment,the application of wireless communication technology in this field still faces numerous challenges that require in-depth researches.[Method]The hardware system used in the tests is introduced,detailing the composition of the NDT(network delay tester)and the specific specifications of the bridge devices under test.Three simulated environmental conditions are set up:Condition 1(corridor environment),Condition 2(close to the ground),and Condition 3(blocked by an iron door).Testing software is used to obtain data on signal throughput and one-way transmission delay of wireless communication under the three conditions.The tested data are analyzed to identify the propagation characteristics of wireless signals and potential interference factors under the three conditions.[Result&Conclusion]The three conditions all have varying degrees of impact on signal throughput and transmission delay of wireless transmission.Metal substances between train compartments exhibit a significant shielding effect on radio waves.The wireless signal performs best under Condition 1,followed by Condition 2,with Condition 3 showing the worst performance.

关 键 词：高速列车 列车网络控制系统 无线通信 信号吞吐量 传输时延 

分 类 号：U285.2[交通运输工程—交通信息工程及控制]