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http://dx.doi.org/10.5573/ieie.2016.53.2.010

Delay Compensation Mechanism for a Link Failure in Control Networks of Railway Vehicles  

Hwang, Hwanwoong (Department of Electrical and Information Engineering, Seoul National University of Science and Technology)
Kim, Sanghyun (Department of Electrical and Information Engineering, Seoul National University of Science and Technology)
Yun, Ji-Hoon (Department of Electrical and Information Engineering, Seoul National University of Science and Technology)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.53, no.2, 2016 , pp. 10-16 More about this Journal
Abstract
For higher reliability against a link failure of a control network in railway vehicles, a recovery mechanism is needed. We introduce a problem that, when a link failure occurs in a ring-topology control network, a node may experience a significant increase of transmission delay depending on its relative position within the network. We then propose two mechanisms to solve this problem: (1) differentiating and prioritizing node traffic in forwarding; and (2) switching some nodes to a backup bus-topology network. Our simulation study shows that, while the first mechanism achieves a limited gain by only compensating queuing delay, the second one gets a sufficient gain which is impacted by the number of nodes switched to the bus network.
Keywords
railway vehicles network; link failure; recovery; network topology; distributed control system;
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Times Cited By KSCI : 2  (Citation Analysis)
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