基于实时Linux的端设备TRDP与TSN在列车通信网络的融合技术研究

Research on fusion technology of terminal device TRDP and TSN based on real-time Linux intrain communication network

随着轨道交通列车网络系统的智能化水平提高,针对列车通信网络端到端的实时性与确定性需求日益增强,提出了一种实时Linux的端设备TRDP与时间敏感网络(TSN)融合的架构,为了验证合理性,设计测试平台对TSN-TRDP融合架构进行测试,结果验证了2个网络节点端到端的时间同步误差可以达到ns级,延时为μs级,满足实时Linux的TRDP与TSN融合应用需求。

With the improvement of the intelligence level of rail transit train network system,a fusion architecture of terminal device TRDP and time sensitive network(TSN)based on real-time Linux is proposed to meet the increasing real-time and deterministic requirements of the train communication network end-toend.To verify its rationality,a testing platform has been designed to test the TSN-TRDP fusion architecture.The results show that the end-to-end time synchronization error of the two network nodes can reach ns-level,with a delay ofμs-level,meeting the real-time Linux TRDP and TSN fusion application requirements.