一种EtherCAT与TSN网络互通的实现方法  

A new implementation method of interworking between EtherCAT and TSN network

作　　者：缪京霖 李念军 MIAO Jing-lin;LI Nian-jun(Wuhan Research Institute of Post and Telecommunications,Wuhan 430074,China;Wuhan FiberHome Networks Co.,Ltd.,Wuhan 430205,China)

机构地区：[1]武汉邮电科学研究院,湖北武汉430074 [2]武汉烽火通信科技股份有限公司,湖北武汉430205

出　　处：《电子设计工程》2020年第3期84-88,共5页Electronic Design Engineering

摘　　要：目前工业互联网迅速发展,EtherCAT是应用最为广泛的多种的实时工业以太网协议之一,其实时性和确定性都有很强的保证。但在互操作性和带宽成本等方面略有不足。本文基于EtherCAT现场总线网络和TSN时间敏感网络之间的互联互通的目的,设计时间同步与流量调度实验,得到时间精度在50ns浮动的数据并且流量调度实验结论也符合预期。因此,文章提出的互通方法支持TSN协议中的时间同步与流量调度特性,且实现了EtherCAT/TSN网络的融合以简化了网络的部署和管理。At present,the industrial Internet is developing rapidly. EtherCAT is one of the most widely used real-time industrial Ethernet protocols,and its real-time and certainty are guaranteed. However,there are some shortcomings in terms of interoperability and bandwidth costs. Based on the purpose of interconnection between EtherCAT fieldbus network and TSN time-sensitive network,this paper designs time synchronization and traffic scheduling experiments,and obtains data with time precision of 50 ns floating. The flow scheduling experiment conclusion is also in line with expectations. Therefore,the interworking method proposed in this paper supports the time synchronization and traffic scheduling features in the TSN protocol,and realizes the convergence of EtherCAT/TSN networks to simplify network deployment and management.

关 键 词：工业互联网 时间敏感网络 时间同步 网络互通 

分 类 号：TN0[电子电信—物理电子学]