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열차 제어 시스템을 위한 자동 진단 및 실시간 모니터링 소프트웨어
서동진(Dong-Jin Suh),박재근(Jaegeun Park),원유창(Yuchang Won),은용순(Yongsoon Eun) 제어로봇시스템학회 2021 제어·로봇·시스템학회 논문지 Vol.27 No.3
Train control systems consist of supervisory controller, network, and multiple trains. Actual trains are controlled and supervised by computer based signals, which put this system in the paradigm of CPS (Cyber-Physical Systems). Recent trends in train control systems are adopting wireless communication protocols to improve operational efficiency. While efficiency is improved by overcoming legacy fixed block based operation, wireless communication channels open new surfaces for external attack and malfunction. Actual attacks on CPS indeed have been materialized in trains, and as a result, attention from academia and industry for resiliency for train control systems are increasing. This manuscript overviews the trend and latest effort to this regard and introduces status of train control software that enhances the aspect of automatic diagnosis and real-time monitoring features.