Industrial Hard Real-Time Communication Protocol over Switched Ethernet

摘要

This paper presents a protocol to support hard real-time traffic of end-to-end communication over non real-time LAN technology. The protocol does not need any modifications in the Ethernet hardware and coexists with TCP/IP suites, and then the LAN with the protocol can be connected to any existing Ethernet networks. We have performed some experiments to evaluate the protocol. Compared to some conventional hard real-time network protocols, the proposed one has better real-time performances and meets the requirements of reliability for hard real-time system applications.