MVB-ECN异构网络的过程数据传输及仿真分析  

Transmission of Process Data in MVB-ECN Heterogeneous Network and Simulation Analysis

作　　者：李柱培 钱存元 LI Zhu-pei;QIAN Cun-yuan(Institute of Rail Transit,Tongji University,Shanghai 201804,China)

机构地区：[1]同济大学铁道与城市轨道交通研究院,上海201804

出　　处：《计算机仿真》2024年第9期90-95,共6页Computer Simulation

摘　　要：多功能车辆总线(Multifunction Vehicle Bus,MVB)是目前车载网络控制系统中应用最成熟、最广泛的总线,但其传输速率较低,难以满足大容量数据的传输需求。基于以太网的列车通信网络是实现列车控制与大容量信息服务一体化的新型宽带网络系统,是列车通信网络重要的发展方向。新兴的以太网编组网(Ethernet Consist Network,ECN)和传统的多功能车辆总线互连通信首先要保证面向列车控制的过程数据传输的实时性和可靠性。为此,首先分析了MVB及ECN的通信协议及传输模式,提出了过程数据在MVB-ECN异构网络中的互联传输的方案,并从理论上分析了过程数据的传输时延;然后基于OPNET搭建MVB-ECN异构网络仿真模型,对过程数据传输的实时性进行仿真验证,解析所提方案的优缺点,为MVB-ECN网关的设计提供一定的理论参考。Multifunction Vehicle Bus(MVB) is currently the most widely used bus in the train communication network and train control system,but with its limited transmission rate,it no longer meets the needs for transmission of large data.Ethernet-based train communication network is a new wideband network system that integrates train control and services for large-amount information,and is becoming an important tendency of the train communication network.The interconnection and communication between the relatively new Ethernet Consist Network(ECN) and traditional MVB must first ensure the real-time and reliable process data transmission used for train control.Therefore,this paper first analyzes the communication protocol and transmission mode of MVB and ECN,proposes a scheme for interconnection and transmission of process data in the MVB-ECN heterogeneous network,and theoretically analyzes the transmission delay of process data.Then,based on the OPNET software,an MVB-ECN heterogeneous network simulation model is built to simulate and verify the real-time performance of process data transmission,and by analyzing the advantages and disadvantages of the proposed scheme,this paper aims to provide a theoretical reference for the design of MVB-ECN gateway.

关 键 词：多功能车辆总线 以太网编组网 过程数据 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]