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무인운전 도시철도차량 및 PSD 인터페이스 기능안전성에 관한 연구
최용은,정기호,오효석,문병민,김재문 한국산학기술학회 2023 한국산학기술학회논문지 Vol.24 No.12
Under the revision of the National Railroad Safety Act, some existing platform safety systems are being changed to platform safety doors (PSDs) and have mandatory installation for new routes. To secure the safety of PSD functions recently introduced in unmanned driving systems, the safety of a vehicle RF device installed in vehicles that are directly linked to a PSD is required. Therefore, this study analyzed safety requirements to secure functional safety of the interface between the PSD and the vehicle door according to the introduction of a new PSD for onboard RF control devices. Functional safety application and functional improvement were implemented for opening and closing signal commands for an urban railway vehicle door. We verified the functional improvement through field-tested functional safety of an urban railway driverless system between a vehicle and a PSD.