GRE隧道在地铁车地无线通信传输中的应用

为实现地铁工程车智能安全监控(ISM)系统对工程车冒进信号、异物侵限、挤岔脱轨、冲撞车挡、列车冲突等情况的智能化防护,系统信息、轨旁联锁信息、施工作业单信息和人员等信息的车地无线通信传输至关重要。文章通过介绍ISM系统对车地无线通信传输的需求,对比分析多种车地无线通信传输方式,进而提出物联网卡搭配通用路由封装(GRE)隧道方案,实现ISM系统数据和视频数据的车地无线通信传输,以满足安全防护和监控要求。该方案不仅适用于ISM系统,也适用于任意对数据安全有要求的车辆和设备。

Application of GRE tunnel in metro train-ground wireless communication transmission

AIn order to realize the goal that intelligent safety monitor(ISM)system intelligently protects metro engineering vehicles from entering signals,foreign objects beyond limit,switch split fault and derailment,bumper collisions,train conflicts,etc.,the train-ground wireless communication transmission of system information,way-side interlocking information,and construction order information and personnel information is very important.This paper introduces the requirements of the ISM system for train-ground wireless communication transmission,compares and analyzes various train-ground wireless communication transmission modes,and then puts forward a scheme of IoT network cards combined with general routing encapsulation(GRE)tunnels to realize a train-ground wireless communication transmission of ISM system data and video data,so as to meet the requirements of safety protection and monitoring.The scheme is not only applicable to the ISM system,but also applicable to any vehicle and equipment requiring data security.