FBG-based axle counter system

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FBG-based axle counter system

 

Author: Lyu, Yongliang
Title: FBG-based axle counter system
Degree: M.Sc.
Year: 2017
Subject: Railroads -- Signaling.
Hong Kong Polytechnic University -- Dissertations
Department: Faculty of Engineering
Pages: 108 pages : color illustrations
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b2952766
URI: http://theses.lib.polyu.edu.hk/handle/200/8901
Abstract: Railway signaling systems play an important role in railway safety. As one of the signaling systems, axle counter system, which can be fallback mold when CBTC system fails, has its advantages compared with track circuit system. However, there are many deficiencies in traditional electromagnetic counter heads. FBG-axle counter system, a new-style signaling system, is able to make up the shortcomings of the traditional one. This dissertation conceptualizes a FBG-based axle counter system prototype based on redundancy design and fail-safe design. The system prototype is tested by FMECA, ETA and FTA to prove its RAMS. Based on the assumption of each component, the prototype of FBG-based counter system can fulfill the safety requirements according to EN50126 and EN50129.

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