基于时间敏感网络的列车通信网络时间同步与流量整形技术研究  

Time Synchronization and Traffic Shaping Technique of Train Communication Network Based on Time Sensitive Network

作　　者：王欣立 于泽人 周钧 张立斌 WANG Xinli;YU Zeren;ZHOU Jun;ZHANG Libin(CRRC Dalian Electric Traction R&D Co.,Ltd.,116052,Dalian,China)

机构地区：[1]中车大连电力牵引研发中心有限公司,大连116052

出　　处：《城市轨道交通研究》2023年第3期51-55,61,共6页Urban Mass Transit

摘　　要：目前城市轨道交通列车多网融合通信系统无法保证关键性数据传输的确定性。分析了该系统对TSN(时间敏感网络)技术的需求,构建了流量整形网络试验平台,开展了基于TSN技术的时间同步与流量整形的相关测试。试验结果表明:在没有其他外界条件干扰的情况下,可以实现预期的列车通信网络时间同步功能;流量整形技术在网络带宽达到上限的极端情况下,仍可以保证关键性数据传输的确定性。At present,transmission determinacy of critical data in urban rail transit train multi-network integrated communication system cannot be guaranteed.Through analyzing the technical requirements of TSN(time sensitive network)for the system,a traffic shaping network test platform is constructed and associated tests of time synchronization and traffic shaping based on TSN technology are carried out.Test results show that the expected time synchronization function of train communication network can be achieved without the interference of other external conditions,the traffic shaping technique can guarantee the deterministic transmission of critical data even in the extreme case that the network bandwidth reaches the upper limit.

关 键 词：城市轨道交通 列车多网融合通信系统 时间敏感网络 时间同步 流量整形 传输确定性 

分 类 号：U231.7[交通运输工程—道路与铁道工程]