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Mathematical Problems in Engineering
Volume 2016 (2016), Article ID 1980867, 10 pages
Research Article

A Dynamic Linear Hashing Method for Redundancy Management in Train Ethernet Consist Network

School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China

Received 8 January 2016; Revised 11 April 2016; Accepted 5 May 2016

Academic Editor: Antonios Tsourdos

Copyright © 2016 Xiaobo Nie et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Massive transportation systems like trains are considered critical systems because they use the communication network to control essential subsystems on board. Critical system requires zero recovery time when a failure occurs in a communication network. The newly published IEC62439-3 defines the high-availability seamless redundancy protocol, which fulfills this requirement and ensures no frame loss in the presence of an error. This paper adopts these for train Ethernet consist network. The challenge is management of the circulating frames, capable of dealing with real-time processing requirements, fast switching times, high throughout, and deterministic behavior. The main contribution of this paper is the in-depth analysis it makes of network parameters imposed by the application of the protocols to train control and monitoring system (TCMS) and the redundant circulating frames discarding method based on a dynamic linear hashing, using the fastest method in order to resolve all the issues that are dealt with.