DETECTION AND CLASSIFICATION OF TURNOUTS USING EDDY CURRENT SENSORS

This paper describes how new train operating systems, which allow for a more effective use of track infrastructure depend on a precise train location. Beyond measuring the vehicle velocity, an eddy current sensor system is able to detect events occurring along the track, e.g., the presence of turnouts. By a classification of turnouts combined with a subsequent map matching, the absolute position of the vehicle on a digital route map can be found without any expensive investment in track infrastructure. This paper presents a method used to detect and classify turnouts. Considering the irregularity of the continuous sensor signal, rail clamps and other kinds of events, e.g., turnout components, can be easily distinguished. A characteristic signature is taken from any event, which seems to be a turnout or a turnout component. These signatures are then compared with stored reference data by cross-correlation. Preliminary experiments indicate that a robust detection of an individual type of turnout is possible. Supplemented by the precise distance measurement of the eddy current sensor, the system is suitable for a broad range of railway applications.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1853127159
• Corporate Authors:

  WIT Press

  Ashurst Lodge
  Ashurst, Southampton  United Kingdom  SO40 7AA
• Authors:
  • Geistler, A
  • Bohringer, F
• Conference:
  • Computers in Railways IX
  • Location: Dresden, Germany
  • Date: 2004-5-17 to 2004-5-19
• Publication Date: 2004-5

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 467-476
• Monograph Title: COMPUTERS IN RAILWAYS IX
• Serial:
  • Publication of: WIT Press
  • Publisher: WIT Press
  • ISSN: 1462-608X

Subject/Index Terms

• TRT Terms: Detection and identification systems; Infrastructure; Railroad turnouts; Route surveying; Train operations; Vehicles; Velocity
• Subject Areas: Operations and Traffic Management; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00978623
• Record Type: Publication
• ISBN: 1853127159
• Files: TRIS
• Created Date: Sep 1 2004 12:00AM