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http://dx.doi.org/10.5370/KIEE.2013.62.8.1169

IEC 61508 into PES for Train Control Systems  

Kang, Shin-Ju (Dept. of Railway Electric and Signaling Engineering, Graduate School of Railway, Seoul National University of Science and Technology)
Lee, Jongwoo (Dept. of Railway Electric and Signaling Engineering, Graduate School of Railway, Seoul National University of Science and Technology)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.62, no.8, 2013 , pp. 1169-1176 More about this Journal
Abstract
PES have been recently required to implement railway industry for its application flexibility. The PES should be commensurated with railway safety requirements. It achieved its safety through redundant PES. The redundant systems run with voting functions. The successful major voting result becomes the output of the redundant system. The redundant system have to be synchronized to vote each output results. This paper proposed an algorithm for synchronizing and a voter. The proposed algorithm and the voter are verified using simulation.
Keywords
Safety critical PES; IEC 61508; Redundant; Voting;
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