Journal of the Korean Society for Nondestructive Testing (비파괴검사학회지)

The Korean Society for Nondestructive Testing (한국비파괴검사학회)
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Data Analysis of Inertial Sensors for Train Positioning Detection System

열차위치검지 시스템을 위한 관성센서 데이터 분석 연구

  • 김성진 (한국철도기술연구원 광역도시교통연구본부) ;
  • 박성수 (한국철도기술연구원 광역도시교통연구본부) ;
  • 이재호 (한국철도기술연구원 광역도시교통연구본부) ;
  • 강동훈 (한국철도기술연구원 신교통연구본부)
  • Received : 2014.09.23
  • Accepted : 2014.10.29
  • Published : 2015.02.28
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Abstract

Train positioning detection information is fundamental for high-speed railroad inspection, making it possible to simultaneously determine the status and evaluate the integrity of railroad equipment. This paper presents the results of measurements and an analysis of an inertial measurement unit (IMU) used as a positioning detection sensors. Acceleration and angular rate measurements from the IMU were analyzed in the amplitude and frequency domains, with a discussion on vibration and train motions. Using these results and GPS information, the positioning detection of a Korean tilting train express was performed from Naju station to Illo station on the Honam-line. The results of a synchronized analysis of sensor measurements and train motion can help in the design of a train location detection system and improve the positioning detection performance.

철도 시설물의 상태를 종합적으로 동시에 검측하고 건전성 평가가 가능한 고속 종합검측시스템을 위해 열차의 위치검지 정보는 필수불가결하다. 본 논문에서는 위치검지를 위한 위치 기술중 관성센서의 측정과 분석에 대해 다룬다. 관성센서의 가속도 정보와 각속도 정보에 대해 진폭과 주파수 관점에서 분석하였고, 진동 및 열차 동역학에 대한 검토도 이루어졌다. 이러한 검토 결과와 GPS 정보를 이용하여 호남선 나주역부터 일로역까지 한국형 틸팅열차의 위치검지를 수행하였다. 이와 같은 센서 측정치와 열차의 거동에 대한 동기화된 분석은 열차위치검지 시스템의 설계와 성능 향상에 도움을 줄 수 있다.

Keywords

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