【摘要】 针对工业以太网在实时性等方面的缺陷,在传输协议机制上提出改进建议,建立数据业务综合分级调度的实时传输机制,以有效降低端到端传输时延;利用OPNET仿真工具,设计出列车骨干网和编组网的以太网络模型、节点模型和进程模型,并依据业务要求配置仿真参数,验证了综合分级调度算法在端到端时延方面的有效改善。更多还原

【Abstract】 To address the defects of industrial Ethernet in real-time-ness,it is proposed to make improvement on the mechanism of transmission protocol and the mechanism of real-time transmission with integrated graded scheduling for data services is set up to effectively reduce the delay of end-to-end data transmission.The Ethernet model,node model and process model of train backbone network and train set network are designed via OPNET tool.The parameters of the simulation are set according to the requirements of services and it has been verified that the delay of endto-end data transmission can be effectively reduced by using the algorithms of integrated graded scheduling.更多还原