摘要
分析了传统以太网通信网络技术,由于介质访问方法和数据通信的不确定性,导致其在列车控制网络的应用中存在问题。借鉴TCN介质访问的控制特点,引入基于时间触发机制的时分复用信道方法,对基于工业以太网的列车网络调度机制进行改进,以提升网络的实时性和确定性。在此基础上进行了实时性分析和计算,并在OPNET仿真平台上建立模型,仿真结果验证了该方法的可行性及有效性。
The traditional Ethernet communication technology is analyzed, because of uncertainty of media access and data communication, there are some problems for traditional Ethernet applied in train control network. Reference to the characteristics of TCN MAC protocol, the time division multiplexing channel method based on time-triggered mechanism was introduced to improve the train network scheduling mechanism and ensure Ethernet＇s real-time and deterministic communication. Then, the real-time analysis and calculation were carried out, and the simulation model was completed on the OPNET simulation platform. The simulation results demonstrated the feasibility and effectiveness of the proposed approach.
作者
严翔
YAN Xiang(Locomotive ＆ Car Research Institute, China Academy of Railway Sciences, Beijing 100081, China)
出处
《机车电传动》
北大核心
2018年第3期41-44,共4页
Electric Drive for Locomotives
关键词
列车控制网络
工业以太网
时间触发
时分复用
train control network
industrial Ethemet
time-triggered
time-multiplexed
作者简介
严翔（1986-），男，博士，助理研究员，现从事轨道交通牵引传动与控制网络方面的研究。
