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방융(Bang Yung),김형훈(Kim Hyung Hoon),엄정규(Um Jung Kyou),조용기(Cho Yong Gi) 한국철도학회 2006 한국철도학회 학술발표대회논문집 Vol.- No.-
A signal system is critical point of transport capacity and train operation in urban rail transit. Today the moving block system by radio is taking place of the fixed block system by track circuit for efficiency and short headway in underground railway and right rail transit. In this study, assuming specification of a train, track and control system, the minimum headway on the moving block system and the fixed block system is researched for the maximum transport capacity.
고속철도 증속에 따른 폐색 표준 속도 수립에 대한 연구
방융(Yung Bang),김현민(Hyun-Min Kim),조신영(Shin-Young Cho),조용기(Yong-Gi Cho) 한국철도학회 2010 한국철도학회 학술발표대회논문집 Vol.2010 No.7
The TVM 430 system manufactured by Ansaldo STS in France is currently used in ground signalling system for Kyungbu HSR. It transmits the speed information to the on-board signalling system in the form of continuous signal via the track, and the rolling stock in Kyungbu HSR runs with 300㎞/h max. operating speed by using the corresponding information. Looking from the recent international trends in HSR, reducing the travelling time and increasing of the line capacity is promoting via the improvement of train speed. In case of TGV Est, they are realizing the normal operation with 320㎞/h max. operating speed by using TVM SEI signalling system, which is similar to TVM 430. Furthermore, in case Honam HSL, which is under construction, is looking over faster speed than the limited one of Kyungbu HSR(i.e. over 300km/h). In this paper, it is assumed that the existing TVM 430 ground signalling system is used and train speed is improved, therefore the number of block section to be increased depending on the increase of train speed and the standard speed to be used in this case is drawn via the simulation of the train model and described the method accordingly.
방융(Bang Yung),김형훈(Kim Hyung Hoon),윤영환(Yoon Yeong Hwan),조신영(Cho Shin Young),조용기(Cho Yong-Gee) 한국철도학회 2009 한국철도학회 세미나자료 Vol.2009 No.5
The railway signaling systems operated in Korea are ATS system, A TP system for the low speed line and ATC system for the high speed line. The integrated onboard signaling system for the next-generation high-speed rail is progressed as the need for reducing a driver's load and controlling a train properly with the automatic translation of the onboard signaling system according to a trackside signaling system. In this paper the configuration of the integrated onboard signaling system and the interfaces of the subsystems is presented.
UML 모델링 도구를 이용한 ATO 차상 소프트웨어의 설계 및 구현
윤영환(Yoon Yeong-hwan),방융(Bang Yung),엄정규(Um Jung-Kyou),조용기(Cho Yong-Gi) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
In this paper, we propose a UML modeling of ATO on-board software. An automatic train operation (ATO) system is a real-time control system, which operates a train without a manual operation by a driver. For the safe and comfortable service, real-time embedded software for ATO on-board equipment should have both of high performance and reliability. UML-based object-oriented modeling technique is introduced and used widely to design software that satisfies this requirement. We used Rhapsody, which is a modeling tool for real-time embedded software, to model the construction and the behavior of ATO on-board equipment. As a result, ATO on-board software which performs the profile calculation and the real-time speed control is designed and implemented. The brief modeling result including behavioral characteristics and the simulation results are presented.
양찬석(Yang Chan-Seok),임재식(Lim Jae-Shik),엄정규(Um Jung-Kyou),한재문(Han Jae-Mun),방융(Bang Yung),김형훈(Kim Hyoung-Hoon) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
Communications Based Train Control(CBTC) is a continuous, automatic train control system utilizing high-resolution, train location determination independent of track circuits; continuous, high capacity, bi-directional train-to-wayside data communications; and trainborne and wayside processors capable of implementing vital functions. In this paper, we present a basic design of CBTC system based on ERTMS/ETCS specifications. The basic design is composed of system requirements analysis, system functional analysis, system architectural design, sub-system requirements analysis, sub-system functional analysis. Each deliverable has been produced according to a development process based on UML/SysML.