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논문 기본 정보

자료유형
학술대회자료
저자정보
고영환 (서울메트로) 이명철 (유경제어) 김민석 (서울과학기술대학교) 이종우 (서울과학기술대학교)
저널정보
한국철도학회 한국철도학회 학술발표대회논문집 한국철도학회 2010년도 정기총회 및 추계학술대회
발행연도
2010.10
수록면
793 - 804 (12page)

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초록· 키워드

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Objectives of track circuit systems are to control location and speed of trains. Closed-loop is formed by shaft in the track circuit systems. So, the track is occupied because current flows to relay device. Also, track circuit systems are divided by using frequency and isolated electrically. Considering structure of depot, it is impossible to install the track circuit systems due to iron-beam. Because rails and earth are connected by the iron-beam, there is much leakage current. So, it is hard to apply the track circuit systems. Thus, when trains go to the depot, sign which indicates existence of trains is used manually. In case of wrong sign, accidents occur such as train crash, derailment etc. Currently, location of trains has been found by using optical sensor in the depot to prevent the accidents. However, it costs a great deal to install and maintain the optical sensor. Therefore, this method is hardly used in train operation institutes.
In this paper, virtual track circuit systems are introduced by using software program in the depot. Also, algorithm of the virtual track circuit systems is proposed. In case that signal is handled to the depot which is occupied by the train, safety is ensured by indicating sign which means existence of trains and stop signal. Also, proper fault tolerance techniques are proposed to the software program by analyzing reliabilityand availability.

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UCI(KEPA) : I410-ECN-0101-2012-326-003879472