基于OPNET的MVB总线仿真研究

MVB Bus Simulation Study Based on OPNET

列车网络控制技术是高速列车发展的一项关键技术。为了评估多功能车辆总线(Multiple Vehicle Bus,MVB)车辆级网络通信系统的性能,优化网络设计,采用Opnet Modeler搭建车辆级通信网络模型,包括车辆的网络拓扑结构模型、链路模型、节点模型和进程模型。利用所搭建的模型,对车辆级通信网络的时延性、吞吐量仿真。通过分析仿真过程中采集的数据,可以预测车辆级通信网路系统存在的问题,为改良、优化高速列车通信网络提供可靠的依据。

Train Network Control Technology is one of the crucial technologies in the development of high-speed trains.To evaluate and optimize the capability of vehicle network communication system,which is based on MVB bus,OPNET network simulation software was used to build the vehicle communication network models,including the topology model,the link layer model and the node layer model.Using the constructed models,the delay and the throughput were simulated.Upon the analysis of the data collected in the simulation process,the potential problem in the vehicle network system could be detected.The simulation provides credible basis to improve and optimize the high speed train network.