• Title, Summary, Keyword: 차상제어장치

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Analysis of Operational Issues for ICT-based On-Board Train Control System (ICT 기반 차상제어시스템 개발에 따른 운영 이슈 분석)

  • Kim, Young-Hoon;Choi, Won-Suk
    • Journal of the Korean Society for Railway
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    • v.14 no.6
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    • pp.575-583
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    • 2011
  • In order to minimize the maintenance cost at local lines, Information & Communication Technology based onboard train control system is being developed. Unlike the central traffic control based fixed block system, this system use a moving block method and railway driver direct control switch and railway crossing. The purpose of this paper is to analyze the concerned main operational issues are as follows: the preparation of train operation, drivability, the role of driver and controller, block system and cost. We defined the role of driver and driver's input data for train service, and we designed the business process of driver using UML tool. We considered the aspect of drivability, DMI is needed to support the braking moment for the driver and driver training simulator. We designed the driver business process for control of switch and railway crossing. We analyzed the fixed block system and moving block system to confirm the difference with the existing operational method. The cost analysis structure is also needed for the operation cost comparison.

Field Test and Performance Verification of On-board Oriented Train Control System (차상중심 열차제어시스템의 현장시험을 통한 성능검증)

  • Baek, Jong-Hyen
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.8
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    • pp.5513-5521
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    • 2015
  • There is an operational efficiency problem about wayside equipment applied to the domestic low-density branch as the equipment has been installed and operated similarly in the mainline. On-board oriented train control system, which has been developed for train safety and operation efficiency, ensures safe train operation without expensive ground control signal devices. Such system consists of on-board control system, wayside control system, and local control system. In this paper, the details of tests such as suitability test, communication test, and interface test are described by installing the on-board control system and wayside control system in field. Installation tests include checking power, voltage, cable connection, LED status, etc. Field applicability of the developed system is also verified through the dynamic operation tests with diverse scenarios, which are performed on the virtual line similar to the real environment including switch machine and level crossing gate. Dynamic operation tests were conducted for total 7 scenarios, and several tests were repeated for each scenario. The elapsed time for each operation was computed by analyzing main process log, and we could check that each operation was accomplished within several seconds. Furthermore, the developed system was verified through field test with an accredited institute, and testing certificates were issued.

Analysis of EMU Installation and Yard Test for Communication Based Train Control On-board Equipment (무선통신기반 차상제어장치의 전동차 시험 분석)

  • Baek, Jong-Hyen;Kim, Yong-Kyu;Lee, Chang-Goo;Park, Jae-Young
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.10 no.5
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    • pp.935-941
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    • 2009
  • In this paper, we study the communication based train control technology which has been improved for the railroad operation efficiency. All the signalling systems currently used in Korea are track circuit based train control systems, which train mobility and safety are considered on. When it comes to the recent abroad trend, development for communication based train control system, which arises new paradigm in the field of high density train separation, have been promoted. Considering the urgent necessity to develop the above mentioned technology, we would like to propose the research and development of communication based train control system and the present domestic and foreign statuses of on-board equipment development. In this paper, therefore, we had been developed localization on-board equipment of communication based train control system, which is the key construction of train control systems. For its verification, we accomplished installation and yard test on-board equipment of communication based train control system on Bundang-line's EMU(Electrical Multiple Unit).

Preliminary Field Trial of Improved Train Control System Using on-board Control (선로변 시설물 차상 제어를 위한 차상중심 열차제어시스템 예비 현장시험)

  • Park, Chul Hong;Choi, Hyeon Yeong;Baek, Jong-Hyen
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.39C no.3
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    • pp.298-306
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    • 2014
  • The railway signalling system for safe train operation regulates the train speed to ensure the safety distance between consecutive trains by using wayside facilities such as track circuits and interlocking systems. In addition, this signalling system controls the trackside equipment such as a railway point along the train line. This ground-equipment-based train control systems require high CAPEX and OPEX. To deal with these problems, the train control system using the on-board controller has been recently proposed and its related technologies have been widely studied. The on-board-controller-based train control system is that the on-board controller can directly control the trackside equipment on the train line. In addition, if this system is used, the wayside facilities can be simplified, and as a result, the efficient and cost-effective train control system can be realized. To this end, we have developed the prototypes of the on-board controller and wayside object control units which control the point and crossing gate and performed the integrated operation simulation in a testbed. In this paper, before the field test of the on-board-controller-based train control system, we perform the preliminary field trial including the installation test, wireless access test, interface test with other on-board devices, and normal operation test.

Feasibility Study of Improved Train Control System Using On-board Controller for Intelligent Control of Trackside Facilities (선로변 시설물의 지능적 제어를 위한 차상중심 열차제어시스템 시뮬레이션 기반 성능 평가)

  • Baek, Jong-Hyen;Jo, Hyun-Jeong;Chae, Eun-Kyung;Choi, Hyun-Young;Kim, Yong-Gyu
    • Journal of the Korean Society for Railway
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    • v.16 no.6
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    • pp.528-533
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    • 2013
  • To improve the efficiency and safety of railway systems, the train control system has considerably evolved from the ground-equipment-based control system (e.g. track circuit, interlocking system, etc.) into the on-board-equipment-based control system. In addition, this train control system enables the rolling stock to intelligently control the trackside facilities by introducing information and communication technologies (ICT). Accordingly, since the ICT-based train control system simplifies the railway system (i.e. the heavy ground-equipment can be removed), an efficient and cost-effective railway system can be realized. In this paper, we perform a feasibility test of the ICT-based train control system using a simulation. To this end, we implement a test-bed consisting of prototype machines of on-board/ground equipment and introduce an integrated operation scenario for the train control. The simulation results satisfy all the requirements of train operation according to the scenario and show the effectiveness of the proposed train control system.