WIT Press


Detection And Classification Of Turnouts Using Eddy Current Sensors

Price

Free (open access)

Paper DOI

10.2495/CR040481

Volume

74

Pages

10

Published

2004

Size

386 kb

Author(s)

A. Geistler & F. Bohringer

Abstract

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 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 distinguished easily. A characteristic signature is taken from any event, which seems to be a turnout or a turnout component. These signatures are the

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