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A fiber Bragg grating sensor system for train axle counting

机译:用于列车车轴计数的光纤布拉格光栅传感器系统

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摘要

Railway signaling facilitates two main functions,udnamely, train detection and train control, in order to maintainudsafe separations among the trains. Track circuits are the mostudcommonly used train detection means with the simple open/closeudcircuit principles; and subsequent adoption of axle counters furtherudallows the detection of trains under adverse track conditions.udHowever, with electrification and power electronics traction driveudsystems, aggravated by the electromagnetic interference in theudvicinity of the signaling system, railway engineers often find unstableudor even faulty operations of track circuits and axle countingudsystems, which inevitably jeopardizes the safe operation of trains.udA new means of train detection, which is completely free fromudelectromagnetic interference, is therefore required for the modernudrailway signaling system. This paper presents a novel optical fiberudsensor signaling system. The sensor operation, field setup, axleuddetection solution set, and test results of an installation in a trialudsystem on a busy suburban railway line are given.
机译:铁路信令具有两个主要功能,即火车检测和火车控制,以保持火车之间的安全间隔。具有简单的开/关/断路原理,轨道电路是最常用的列车检测工具。后来又采用了计轴器,这进一步使在不利的轨道条件下检测火车成为可能。 ud然而,在电气化和电力电子牵引驱动系统中,由于信号系统的附近电磁干扰加剧,铁路工程师经常发现不稳定甚至是轨道电路和轴计数系统的错误操作,都不可避免地危及火车的安全运行。现代设计中,需要一种完全不受电磁干扰的新型列车检测手段。本文提出了一种新型的光纤传感器信号系统。给出了在繁忙的郊区铁路线上的试验/ udsystem中的传感器操作,现场设置,车轴 uddetect解决方案集以及测试结果。

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