基于确定时隙调度的列车以太网卡的设计与实现  

Design and Implementation of Train Ethernet Card Based on Deterministic Scheduling

作　　者：郑斌 马可 李洋涛 侯峰 张旭林 ZHENG Bin;MA Ke;LI Yangtao;HOU Feng;ZHANG Xulin(Beijing Zongheng Electro-Mechanical Technology Co.,Ltd.,Beijing 100094,China;Locomotive&Car Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;State Key Laboratory for Traction and Control of EMU and Locomotives,Beijing 100081,China)

机构地区：[1]北京纵横机电科技有限公司,北京100094 [2]中国铁道科学研究院集团有限公司机车车辆研究所,北京100081 [3]动车组和机车牵引与控制国家重点实验室,北京100081

出　　处：《铁道机车车辆》2024年第4期64-70,共7页Railway Locomotive & Car

基　　金：中国铁道科学研究院集团有限公司重点项目(2021YJ246)。

摘　　要：目前基于以太网的列车网络控制系统中的以太网卡普遍采用软件的方式实现通信功能,但在收发列车实时数据协议(TRDP)报文时存在实时性差和不确定性高的问题。文中从报文处理角度详细分析了该缺陷的来源,针对性地提出了一种基于确定时隙调度的列车以太网卡设计,介绍了其硬件和软件设计方案并完成了实现。搭建测试环境进行比对测试,验证了该以太网卡对TRDP通信实时性和确定性的改善。Ethernet card in the Ethernet-based train network control system generally uses software to implement the communication function.This approach is non-ideal because of poor real-time performance and high uncertainty when sending and receiving train realtime data protocol(TRDP)messages.This paper analyzes the source of this defect from the perspective of message processing,and proposes a real-time Ethernet card design for trains based on deterministic scheduling,then introduces its hardware and software design scheme.A test environment was built for comparative testing,which verified the real-time and deterministic improvement of the realtime Ethernet card for TRDP communication.

关 键 词：列车以太网 列车实时数据协议(TRDP) 实时性 时隙调度 

分 类 号：U284.48[交通运输工程—交通信息工程及控制]