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Sehchan Oh,Yongki Yoon,Kyunghee Kim,Yongkyu Kim 제어로봇시스템학회 2013 제어로봇시스템학회 국제학술대회 논문집 Vol.2013 No.10
Communication based Train Control(CBTC) system, the latest train control technology, has been widely applied throughout the world, because it has a number of advantages such as improved driving headway, reduction of the maintenance cost and so on. The technical core of CBTC is to ensure the safe space between trains through the real-time train tracking. Korean Radio-based Train Control System(KRTCS) has been developed as a Korean CBTC standard since 2010. KRTCS is comprised of Automatic Train Supervision(ATS), wayside/onboard Automatic Train Protection(ATP), onboard Automatic Train Operation(ATO), Electronic Interlocking(EI) and wayside equipment such as transponder tags, precision stop maker, communication network, etc. In the paper, we present system configuration of KRTCS and design and development scheme of Automatic Train Protection(ATP) communication interface for KRTCS. Communication between each component is performed using the protocol defined in the form of variable messages. Messages are divided into periodic or non-periodic messages. This study describes onboard and wayside ATP functional design and communication message and procedure for each function.
Design of Train Integrity Monitoring System for Radio based Train Control System
Sehchan Oh,Yongki Yoon,Kyunghee Kim,Yongkyu Kim 제어로봇시스템학회 2012 제어로봇시스템학회 국제학술대회 논문집 Vol.2012 No.10
Radio based train control system can perform the high density train control due to its real-time traceability of train location and the high amount of information transmission, and it has the merit to reduce costs for equipment invetment and maintenance costs because it does not use the existing track circuit. However, a separate system which can check the train integrity on a real-time basis is required since it does not use the track circuit. This paper proposes a train integrity monitoring system which can check the real-time train integrity in the radio based train control system. For the safe protection of parted train, it is possible to monitor parted situations of train on a real-time basis by using separate onboard equipment. This paper describes system requirements for the design of proposed TIMS, system configuration and the operation algorithm.
ATP Functional Allocation for Korean Radio based Train Control System
Sehchan Oh,Yongki Yoon,Minsoo Kim,Yongkyu Kim 제어로봇시스템학회 2012 제어로봇시스템학회 국제학술대회 논문집 Vol.2012 No.10
Radio based train control system has the effect of increasing a track capacity since it enables the high density train control to be made due to its real-time traceability of train location and the high amount of information transmission, and it has the merit to reduce maintenance costs greatly because it does not use the track circuit. The technical core of automatic train protection (ATP) which is the most vital function in this radio based train control system is to trace the train location on a real-time basis and to secure the safe interval between the preceding train and following tran on the basis of it. This study describes the definition of ATP functions which are being designed in the Korean radio based train control system and the allocation of ATP functions to the onboard and wayside.
이강미(Kangmi Lee),윤용기(Yongki Yoon),김혜윤(Heyyun Kim) 한국철도학회 2013 한국철도학회 학술발표대회논문집 Vol.2013 No.5
열차간격을 최소화 함으로써 선로 용량을 향상시키고 운영비를 절감한다는 장점으로 도시철도, 경량전철 등 국내 신규 건설사업의 시스템으로 무인 자동열차 시스템이 적용되는 추세이다. 하지만 사고발생 시 유인운전보다 즉각적인 현장파악이 어려워 사고에 대한 초기 대처가 늦어지는 문제점이 존재한다. 무인 자동운전에서 발생할 수 있는 사고는 크게 시스템 설비고장으로 인한 사고와 외부 원인으로 인한 사고로 분류 할 수 있다. 사고가 발생할 경우 열차 운영을 정상화 하기 위해 사고의 원인을 정확히 파악하고 원격 명령과 현장투입을 통한 신속한 복구 절차가 필요하다. 본 논문에서는 무인 자동 운전시 발생할 수 있는 사고에 대하여 알아보고 원인에 따른 사고복구 시나리오와 승객의 안전을 보장할 수 있는 시스템에 대하여 설명하고자 한다. With its advantages of increasing line capacity and reducing operational costs by minimizing headways, the driverless automatic train system is applying as an operational system for new national construction projects such as urban railways, light rail, and etc. In case of an accident occurrence, however, the system has a problem of lateness for an early response, because it is more difficult to know situation in the field under the driverless system than under the manned operation system. Possible accidents in the driverless automatic operation can be largely classified into accidents caused by system equipment failure and accidents due to an external cause. When an accident occurs, fast recovery procedures are necessary for normalizing train operation by grasping cause of the accident, giving remote command and deploying staffs on the scene. This paper researches possible accidents during the driverless automatic operation and describes accident recovery scenario depending on the causes of accident and system that can ensure passenger safety.
이진호(Jeanho Lee),이혁(Hyuk Lee),윤용기(Yongki Yoon),최진영(Jinyoung Choi) 한국정보과학회 2010 한국정보과학회 학술발표논문집 Vol.37 No.1B
열차제어 시스템은 안전필수 시스템으로 고신뢰성과 고품질이 요구되고 있다. 열차 제어 시스템 개발과정에서 요구 사항 분석에 따라 결정되는 설계 사항의 경우 여러가지 요소들이 고려된다. 본 논문에서는 정형 요구 명세와 검증을 거쳐 제안된 설계 사항들을 하나의 패턴으로 정의하고, 시스템 개발 주기를 고려한 안전필수 시스템 설계단계에서 활용하는 프레임워크를 제안한다.