Measurement of the wheel-rail relative displacement for the active wheelsets steering system using the image processing algorithm

  • Authors:

  • Min-Soo Kim

  • Affiliations:

  • Metropolitan Railroad System Research Center, Korea Railroad Research Institute, Uiwang-si, Gyeonggi-do, Korea

  • Venue:
  • MACMESE'11 Proceedings of the 13th WSEAS international conference on Mathematical and computational methods in science and engineering
  • Year:
  • 2011

Quantified Score

Hi-index 0.00

Visualization

Abstract

The central problem of the active wheelsets steering systems of the railway vehicles is the measurement of the lateral movements of wheelsets with the noncontact manner. This paper describes the development of a real-time vision system for active steering of a railway vehicle to detect a lateral displacement between wheel and rail in various dynamic environments. An active steering system has proven its ability to reconcile the contradicting requirements of running stability and track friendliness on curve sections and it consists of one actuator, a controller, and sensors. As one of the sensor system for detecting the wheel/rail relative displacement in active steering bogie, the image processing techniques were investigated with the aid of the vision based image processing algorithm. Running test results show that our proposed lateral displacement measurement method is accurate in each sampling rate, and make it a sensor to be placed in the active steering control systems.