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Design and Development of Structural Health Monitoring System for Smart Railroad-Gauge-Facility Using FBG Sensors

机译：基于FBG传感器的智能铁路设施结构健康监测系统的设计与开发。

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摘要

A gauge-changeable system in railways can be a better solution for the fast and safe railway transportation between two countries with different gauges than transshipment or bogie-changing at the border of each country. Especially in South Korea, it is very essential for connecting the trans-Korean railway with the transcontinental railway effectively. So far, conventional type sensors like gap sensors or strain gauges have been used for the monitoring system during gauge change processes. Because they are also based on electric type sensors, they could not be free from electromagnetic interference (EMI) under high-voltage electric power feeding system in modern railways. In this paper, a novel and simple real-time monitoring system in the gauge change facilities is developed by using fiber optic sensors, especially FBG (Fiber Bragg Grating) sensors, and a graphic user interface (GUI) software. The system shows the whole gauge change process successfully in real-time including its malfunction to the operator. The performance of this system, based on fiber Bragg grating (FBG) sensor technology, is successfully verified through a 1/6 subscale model test.
机译：与在每个国家的边界​​进行转运或转向架转换相比，铁路中的轨距可变系统是更好的解决方案，可在轨距不同的两个国家之间实现快速安全的铁路运输。特别是在韩国，有效连接跨韩铁路与跨大陆铁路至关重要。迄今为止，在量规更换过程中，常规类型的传感器（如间隙传感器或应变仪）已用于监视系统。由于它们也是基于电气类型的传感器，因此在现代铁路的高压供电系统中，它们无法摆脱电磁干扰（EMI）。在本文中，通过使用光纤传感器（尤其是FBG（光纤布拉格光栅）传感器）和图形用户界面（GUI）软件，开发了一种新颖，简单的仪表更换设施实时监控系统。该系统可实时成功显示整个仪表更换过程，包括向操作员显示故障。该系统基于光纤布拉格光栅（FBG）传感器技术的性能已通过1/6子比例模型测试成功验证。

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