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열차 차축검지 신뢰성 향상을 위한 근접센서 방식 Axle Counter 적용 연구

A Study of the Apply Proximity Sensor for Improved Reliability Axle Detection

  • 박재영 (우송대학교 철도시스템학과) ;
  • 최진우 (우송대학교 철도시스템학과)
  • Park, Jae-Young (Division of Railroad System Engineering, Woosong University) ;
  • Choi, Jin-Woo (Division of Railroad System Engineering, Woosong University)
  • 투고 : 2015.06.29
  • 심사 : 2015.08.06
  • 발행 : 2015.08.31

초록

철도 신호제어시스템에서 열차의 위치 및 점유 유무를 검지하기 위하여 궤도회로 이외에 axle counter적용 사례가 증가하고 있는 추세이다. 이에 본 연구에서는 열차검지 및 차축계수의 신뢰성을 높이기 위해 axle counter의 센서 방식을 지자기 센서 방식과 근접센서 방식을 비교하였으며, 그에 따른 차이점과 결과를 제시하였다. 또한, 정확한 차축검지를 위한 센서부의 취부조건 등을 고려한 설치에 대해 현장 경험을 기반으로 적용된 결과를 제시한다. 본 연구에서는 차축검지의 신뢰성 향상을 위해 센서의 위상차를 판단할 수 있도록 설계 변경한 결과 차축검지 기능뿐만 아니라 다양한 기능까지(열차의 방향검지, 열차속도검지 등) 수행할 수 있는 확장성을 확보하였다. 또한 열차의 종별, 무게 등의 특성에 종속되지 않았으며, 자체적으로 제작한 차축검지를 위한 모의차축 이송장치와 Test Bed를 구축하여 Lab. 테스트를 수행한 결과 350km/h의 속도에서도 차축 검지의 누락이 발생하지 않았음을 확인하였다. 이를 통해 열차의 검지뿐만 아니라 통과하는 열차의 속도와 편성 수, 선로전환기 통과 시 철사쇄정 조건 그리고 건널목 장치에도 적용할 수 있는 기반을 마련하였으며, 향후 철도 신호제어 시스템 전반에 확대 적용하게 되면 열차안전운행에 많은 기여를 할 것으로 판단된다.

This In the railway signaling system, applications of axle counter in addition to track circuit goes on increasing for detecting train position. Consequently, this paper compares sensor methods of axle counter with between geo-magnetism method and proximity sensor method. And it presents differences and results, to improve reliabilities of train detection and axle counting. Also, this article presents an applied result which is based on field experience, with regard to installation, considering attachment condition of sensor part for accurate axle counting. This study acquires expandability that is able to perform not only axle counting function but also various other functions (direction detection of train, speed detection of train, and so on). It was a result of a change of design in order to judge phase difference of sensors, to improve reliability of axle counting. Furthermore, it does not subordinate to characteristics (type, weight of train). And it is confirmed that the omission of axle counting was not occurred in 350km/h. This was the result of Lab test after the construction of transfer equipment of trial axle and Test Bed for axle counting. Both of them are self-productions. Through this, it prepares foundation which is able to apply not only to train detection but also to speed of passing trains, formation number of trains, detector locking condition - when the train passes the section of switch point, and level crossing devices. Furthermore, it would be judged to contribute safety train operation if proximity sensor method applies to the whole railway signaling system from now on.

키워드

참고문헌

  1. Gong Jian, "Application of Electronic Axle Counter Equipment in Engineering, Railway Signalling & Communication, 2011-06
  2. I.C Yeo, S.C Noh, Y.H Kim "Shape optimization of the train wheel detecting sensor according to a magnetic field gradient", The Korean society for Railway, 2014.
  3. JJ Yoo, DH Kim, JH Park "Design and Implementation of Auto-Mobile Detection and Speed Calculation Algorithm using Magnetic Sensor Node" KIISE 2010.
  4. R&D Project, "Developed for extra signal systems to prevent accidents caused by driving the train manually" Final Report,.
  5. SH Son, HS Shin, BH Song, JY Jung "Traffic Flow Modeling using Magnetic Sensor based Vehicle Detection System and R, KIISE 2013.
  6. SY Jo "Biaxial Accelerometer-based Magnetic Compass Module Calibration and Analysis of Azimuth Computational Errors Caused by Accelerometer Errors" Institute of Control, Robotics and Systems 2012. DOI: http://dx.doi.org/10.5302/J.ICROS.2014.13.9008
  7. TY Kim, CJ SO "On-line Magnetic Distortion Calibration Method for a Magnetometer" Institute of Control, Robotics and Systems 2012.
  8. Y.T Kim, "Railway Signalling Control System" Tech Midia, 2003.

피인용 문헌

  1. Performance Evaluation of Wheel Detection Sensor Using an Inductive Proximity Sensor for The High Speed Railway vol.65, pp.5, 2016, https://doi.org/10.5370/KIEE.2016.65.5.895