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- 저자 : 고태균(Tae-Kyun Ko) (검색결과 3 건)
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송용수(Yong-Soo Song),백종현(Jong-Hyen Baek),고태균(Tae-Kyun Ko),김용규(Yong-Kyu Kim) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.10
A Consider the dead man's switch installed in each and every locomotive cab which support operational safety on railways around the world. The concept is very simple every 150 to 180 seconds an illuminated push-button demands to be acknowledged so as to know that the Train Driver is alive and active. In the absence of a response over a period of minutes the vigilance control will automatically apply the train brakes and bring the train to a stand. If we multiply the resetting of the vigilance control 60 times per hour by a 10-hour shift it equals 600 presses of the button during the shift that a Train Driver must pay attention to and acknowledge. This adds a fair bit of pressure on the train driver's job particularly when he/she is driving through stations with passengers moving about on platforms in an environment of complex signaling arrangements all the while looking out for restricting signals. From this perspective the Vigilance System's demand to be acknowledged every 150/180 seconds is disturbing and can unnecessarily take a driver's attention away from what is happening outside the confines of the cab. A much more dramatic situation can happen when a train driver is driving hour after hour at night when by Mother's Nature request - people need to sleep. Experience and research shows that the the dead man's switch can be pressed by train driver in a state of deep relaxation and'micro-sleep'. The vigilance control system which is applied to reduce the drive load considering bio-response multiple unit train is proposed.
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하이브리드 궤도회로 개발을 위한 ISA 절차에 대한 고찰
김진철(Jin-Choul Kim),김유호(You-Ho Kim),최경선(Kyoung-Sun Choi),고태균(Tae-Kyun Ko),이인현(In-Hyun Lee) 한국철도학회 2012 한국철도학회 학술발표대회논문집 Vol.2012 No.10
2012년 3월부터 하이브리드궤도회로(Hybrid track Circuit)개발 및 장치에 대한 검증과 안전성평가를 수행하는 연구가 진행되고 있다. 본 연구는 ATO/ATP/ATC용 하이브리드 궤도회로를 개발하여 철도신호에서 사용하는 궤도회로의 새로운 방식을 제시한다. 장치 개발 및 실용화를 위해서는 철도용 신뢰성, 가용성, 유지보수성, 안전성(RAMS)에 대한 규격등을 기본으로 개념설계부터 개발까지 수명주기를 기본으로 관리하며 연구에 참여기업이 산출물 및 시스템을 근거로 독립안전성평가(ISA)를 수행하여 인증을 받게 된다. 본고에서는 위와 같은 시스템 검증 및 실용화를 위하여 사업과 관련된 정량적인 RAMS 목표, 발생 위험도 등 인증에 필요한 ISA절차를 고찰하고자 한다. We have studied on the development of Hybrid Track Circuits, equipment verifications and safety evaluation since March 2012. In this paper we present the new type of track circuits which shall be used in railroad signal resulting from the development of the hybrid track circuits for ATO/ATP/ATC. In order for equipment development and practicalization, it is required to be managed based on the Life Cycle from the establishment of the concept to development on the basis of RAMS (Reliability, Availability, Maintainability and Safety) standards in terms of railways. In the study the participation company shall make the evaluation of ISA (Independent Safety Assessment) on the basis of output and system to obtain the ISA certification. In this paper we study on the ISA procedure required in the certification like quantitative RAMS goals, risk probability, etc related to the project in order for system verification and practicalization as mentioned above.
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