Analysis of Track Circuit Failure using Comparison Theoretical Value with Measurement of Tuning Unit
Kim Young Kyu, Baek Jong Hyen · ICEIC : International Conference on Electronics, Informations and Communications · 2010
The ultra high speed train which has researched by KRRI and is under progress of research is based on analyze train control system of Gyeongbu high-speed railroad. In this paper, we present analysis result for track circuit failure of in Gyeongbu-line. The train control system used in Gyeongbu-line is classified in ATC, IXL and CTC. The ATC data related to speed and space control for trains are transmitted from wayside to onboard by way of UM71 AF track circuits and BSP Loop. The information transferred by track circuits is composed of operation data which directly influence to the train operation and the information transferred by BSP Loop is used in the section which requires the additional data transmission about the particular track-side environment such as tunnel, hot box detector or insulated section. In this paper, for the BA type turning unit of the UM71 AF track circuits which is mainly used in the linking section of existing and high-speed lines from the opening of the Gyeongbu line till the present, we not only analyze the characteristics of BA but also compare and analyze baseline values and the measured values. With this analysis, we will be able to propose how to solve the problems about operation and maintenance such as track circuit malfunctions of the relevant sections.