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http://dx.doi.org/10.7782/JKSR.2012.15.6.604

A Train Locating Device Using the Current Phase Difference Upon Magnetic Field Variation  

Choi, Jae Sik (Korail research Instituted, Korea Railroad)
Kim, Baik (Department of Railroad Electrical & Electronics Engineering. Korea National University of Transportation)
Rho, Sung Chan (Department of Railroad Electrical & Electronics Engineering. Korea National University of Transportation)
Publication Information
Journal of the Korean Society for Railway / v.15, no.6, 2012 , pp. 604-608 More about this Journal
Abstract
Traditionally, the track circuits have been used for the purpose of train locating. However, the recent train control systems like a CBTC(Communications Based Train Control) do not utilize the track circuits to minimize the amount of ground signal devices. Therefore, there are increasing concerns over the system that can locate the position of train exactly without using the track circuits. Then, the contactless locating methods are added to ensure safety when the shunting sensitivity of the track circuit becomes low for the existing sections equipped with the track circuits. In this paper, a prototype of train locating device has been designed and tested, which utilizes the current phase difference upon magnetic field variation. The results show improved features of this method over the conventional track circuits method.
Keywords
Contactless train detection; Track circuit;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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