Towards a Time Redundancy Mechanism for Critical Frames in Time-Sensitive Networking

Authors Inés Álvarez Vadillo | Julián Proenza Arenas | Manuel Alejandro Barranco González | Mladen Knezic
In Proceedings of the 22nd IEEE International Conference on Emerging Technologies And Factory Automation (ETFA 2017), Cyprus, 2017.

Time-Sensitive Networking (TSN) is a set of technical standards that is being developed to provide Ethernet with
hard real-time, reliability and flexibility services. In the last years, there has been a growing interest in increasing the connectivity of all kind of devices. This trend has reached industrial environments, where the demanding timing and reliability constrains imposed the use of specialised networks with specific features to support these requirements. Moreover, the industry has shown interest in using Ethernet as the network technology in industrial environments, due to its low cost, high bandwidth and extensive use. The ability of TSN to support both, data-oriented and traditional control traffic over the same network makes it an appealing technology to implement the next generation of industrial networks with high connectivity. Nevertheless, TSN does not cover some reliability aspects important for its deployment in critical systems. In this work we propose the implementation of time redundancy of frames in order to tolerate temporary faults in the channel and, therefore, increase the reliability of the network.


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