• Title, Summary, Keyword: Railway Signalling System

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Expanding Plan Study of KRTCS-2(Korean Radio Train Control System for Conventional & High Speed Railway) (일반 및 고속철도용 한국형열차제어시스템 확대적용 방안 연구)

  • Lee, Kang-Gyoo;Choi, Jong-gwoan;Sung, Dong-Il;Yun, Hak-Sun;Park, Jong-Won;Kim, You-Ho;Lee, Nam-Hyoung;Yoo, Jong-Cheon
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.66 no.3
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    • pp.533-539
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    • 2017
  • ERTMS/ETCS Level 2 is currently planning, making contract, constructing and operating at several lines in European well-developed railway countries different from past ten years ago, and applying extensively for purpose of its intercompatibility and operational efficiency, and economic feasibility. On the other hand, ATP system correspond to ETCS Level 1, which was domestically introduced in early 2000, has introduced, operated, and planned or constructed in national railwaynetwork, but the lines, which its improvement period is come, are being occurred starting Gyeongbu Line. Therefore, we study the consideration and construction plan by stages if LTE-R Korean Radio-based Train Control System for conventional & high-speed railway under domestic development is extensively applied as the third National Railway Network Construction Plan was announced.

Analysis of Safety Assessment Activities for Railway Signalling System (열차제어시스템 안전성 평가 업무 분석)

  • Hwang, Jong-Gyu;Jo, Hyun-Jeong;Yoon, Yong-Ki
    • Proceedings of the KIEE Conference
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    • pp.1197-1198
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    • 2007
  • According to the computerization of railway signalling systems, the safety demonstration and assessment of railway signalling system is very important. For this reason, railway signalling systems reflect the needs of methodology to assessment the safety. Then many studies of safety assessment methodology for railway signalling systems centering on the Europe, have been made continuously, and the requirements for safety acceptance are currently standardized by IEC. To develop and establish the safety assessment technology for railway signalling system in Korea, we are reviews the safety assessment activities for signalling system through the reviews of related std., case study and consulting by experts.

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Formal Method for Operational Regulations to Railway Signalling System (철도신호시스템 운용규정에 Formal Method의 적용)

  • Kim, He-Eung;Lee, Jong-Woo
    • Proceedings of the KSR Conference
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    • pp.856-862
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    • 2006
  • In railway signalling system, there are several kinds of signal system such as signals, signs, marker. The signals allows train to go or not, the signs permit to communicate between railway men, and the marks indicate status of railway lines. In KNR, the application of the signal systems are defined in railway operational regulations, operational related regulation, Operation safety critical system manipulation manual, and so on. In this paper, we extracted regulations for signalling system operation from related regulations, reviewed compatibility and contradiction for signalling system operations. We tried to check logical integrity of informal signalling operation regulation using formal method.

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A Simulation of the Railway Signal System Using Pattern Control Technique to Upgrade the Railway Efficiency (선로효율 향상을 위한 열차 패턴제어방식의 신호보안시스템 시뮬레이션)

  • 강규현;김희식
    • Journal of the Korea Society for Simulation
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    • v.7 no.2
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    • pp.125-136
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    • 1998
  • To upgrade railway traffic density without any change of signal block length between stations on existing railway lines, a new signalling system of train control "the pattern control technique" is suggested. It needs very little change to computerize the cab signal using transponders. A computer simulation system is developed to experiment the new control method. The new signalling system shows much increase of the railway traffic efficiency. The train head-way time by the fixed signalling system and the new pattern control system is analyzed. The pattern control technique shows 35% increasement of trair operation under same condition of railway and trains.nd trains.

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Protocol Design for Bus Network Communication between Onboard Signalling System and MMI (차상신호장치와 MMI간 버스형 네트워크 통신프로토콜 설계)

  • Kim, Seok-Heon;Han, Jae-Mun;Jung, Ji-Chan;Cho, Yong-Gee
    • Proceedings of the KSR Conference
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    • pp.2782-2786
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    • 2011
  • In this paper a protocol design for bus network communication between onboard signalling system and MMI(Man Machine Interface) will be presented and illustrated. Recently, many onboard signailling systems adopt hot standby for safety reasons. Hot standby is a method of redundancy in which the primary and secondary systems run simultaneously. It is convenient to use bus network(bus topology) in a hot standby system for communication between onboard signalling system and MMI. Because bus network is the simplest way to connect multiple clients such as onboard signalling system, MMI and etc. However, there are many problems when two clients want to transmit at the same time on the same bus. A effective protocol is necessary to solve that problems. We will describes protocol design which is useful when onboard signalling systems and MMIs are connected via RS485(Bus Network).

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Analysis on Software Static Testing Results of Railway Signaling System (열차제어시스템 소프트웨어 정적 테스팅 적용시험 결과 분석)

  • Hwang, Jong-Gyu;Jo, Hyun-Jeong;Jeong, Rak-Gyo
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.62 no.1
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    • pp.30-35
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    • 2013
  • Many function of railway signalling system which is in charge of most core function in a railway system are being operated by the software according to the development of computer technology. Accordingly, the source code testing to verify the safety of the railway signalling system software becomes to be more important, and related international standards highly recommend verifications on the source code also. For this reason, several related studies on vital source code verification were executed from several years ago in Korea. This paper performed tests through the application to railway signalling system being applied to the existing actual domestic railway sites through automated testing tools for coding rules of signalling system software and another signaling system software under development in Korea recently, and analyzed their results.

A study on the railway signal system for high density traffic (열차의 고밀도운전을 위한 신호보안 시스템에 관한 연구)

  • 강규현;김희식
    • 제어로봇시스템학회:학술대회논문집
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    • pp.163-166
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    • 1997
  • In order to shorten head-way time on existing railway lines without any change of signal block length between stations, it is a realistic optional way to change the control method of train signal, i.e. to modernize the cab signal using transponder. A new signalling system of operation pattern control technique is suggested as new model to increase the railway traffic efficiency. Through the computer simulation of this model, the train head-way time by the fixed signalling system and the new pattern control system is analyzed.

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Signalling System Modelling for Train Operation Simulation (열차운용 시뮬레이션을 위한 신호시스템 모델링)

  • 최규형;구세완
    • Proceedings of the KSR Conference
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    • pp.202-209
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    • 1998
  • This paper presents a modelling of railway facilities and signalling system based on object-oriented software development technique to simulate multi-train movements on the complex railway network. Block and interlocking functions of signalling system is modelled using Node-Link model of railway network and signal control logic, which can be used to set the train routes and control the train movement. A brief explanation of class design about these model is provided.

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Safety Characteristics Analysis of Korean Standard Communication Protocol for Railway Signalling (열차제어용 표준 통신 프로토콜의 안전 특성 분석 및 평가)

  • Hwang, Jong-Gyu;Jo, Hyun-Jeong;Lee, Jae-Ho
    • Journal of the Korean Society for Railway
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    • v.10 no.3
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    • pp.365-371
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    • 2007
  • The communication protocol for interface among railway signalling systems is designed and established as national standard in Korean from a few years ago. So the communication link for information transmission among railway signalling system can be a good example of application of this standard. Communication protocol which is standardized among Korean railway signalling is considered to apply information transmission. And we confirmed there is no the states of deadlock of livelock in std. protocol which is applied formal verification which is one of the analytic method for inspection of safety characteristics in the design course of protocol. But the safety of protocol has to necessarily accomplish this normal analysis approach about satisfying requirement matters with such this analytic approach. In this paper we analyzed the safety characteristics of standard protocol for Korean Railway signalling through the requirement matters for safety transmission of railway transmission system which is required in international standard. So through this study we confirm whether it satisfies safety requirement matters of the level which require in international standard and tried to confirm whether standard protocol has enough safety character in the real railway field.

Supervisory Monitoring of Railway Signalling Devices by Spying Technique (스파잉 기법에 의한 철도신호제어설비 집중감시기법)

  • Kim, Byung-Chun;Choi, Kyu-Hyoung
    • Proceedings of the KIEE Conference
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    • pp.1592-1594
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    • 2005
  • This paper presents a method to construct a supervisory monitoring system for railway signaling devices which can provide the real-time operation information of signalling devices to several maintenance depots. Spying technique has been applied to acquire the real-time data transmitted among railway signaling devices without interfering the railway signalling system function.

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