基于以太网的城轨列车网络系统设计

Network System Design Based on Ethernet of Urban Rail Transit

针对当前城轨列车中大数据量信息传输、智能诊断、旅客娱乐信息服务一体化的多服务高性能综合业务需求,文中设计了一种基于以太网总线的列车网络系统。通过阐述基于梯形拓扑的列车网络结构以及组网交换机中环协议和VLAN的配置方法,实现了网络系统、PIS系统、火警系统和维护网的多网融合列车网络设计,并进一步研究基于TRDP的通信接口在新一代智能化列车网络系统中的实际应用,验证了列车网络系统的数据传输和控制功能。

In this paper, a train network control system based on Ethernet is proposed to meet the demand of multi-service and high performance integrated services including big data information transmission, intelligent diagnosis and passenger information service for urban rail transit. Through expounding the train network structure based on ladder topology and the configuration method of ring protocol and VLAN for the switches, the multi-network integrated train network design of network system, PIS system, fire alarm system and maintenance network is realized. The practical application of communication interface based on TRDP in the new generation intelligent train network system is further studied, and the data transmission and control functions of the train network system are verified.