Real-Time Position and Speed Monitoring of Trains Using Phase-Sensitive OTDR

被引：243

作者：

Peng, Fei ^{[1
]}

Duan, Ning ^{[1
]}

Rao, Yun-Jiang ^{[1
]}

Li, Jin ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Key Lab Opt Fiber Sensing & Commun, Chengdu 610051, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2014年 / 26卷 / 20期

基金：

中国国家自然科学基金;

关键词：

Optical fiber sensor; optical time-domain reflectometry (OTDR); railway safety; vibration measurement;

D O I：

10.1109/LPT.2014.2346760

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

It is essential to carry out real-time position and speed monitoring of trains to ensure the safety of railway operation. In this letter, the phase-sensitive optical-time-domain reflectometry (Phi-OTDR) is demonstrated to overcome the drawbacks of the track circuit, which is widely used and has the risk to be damaged by lightening, for the first time. A long sensing cable, buried nearby to two parallel railways, is used to detect the vibration signals generated by trains with Phi-OTDR and the real-time vibration signals of the trains are extracted/quantified by wavelet denoising. With the edge detection by normalized sliding variance, the operation status of two nearby trains, including their relative position and speed, are obtained over a 10.2-km measurement length in real time. This letter offers a new passive way for safety monitoring of railway operation.

引用

页码：2055 / 2057

页数：3

共 48 条

[41] Low cost portable 3-D printed optical fiber sensor for real-time monitoring of lower back bending [J].

Kam, Wern ;

O'Sullivan, Kieran ;

O'Keeffe, Mary ;

O'Keeffe, Sinead ;

Mohammed, Waleed S. ;

Lewis, Elfed .

SENSORS AND ACTUATORS A-PHYSICAL, 2017, 265 :193-201

[42] Real-time biodetection using a smartphone-based dual-color surface plasmon resonance sensor [J].

Liu, Qiang ;

Yuan, Huizhen ;

Liu, Yun ;

Wang, Jiabin ;

Jing, Zhenguo ;

Peng, Wei .

JOURNAL OF BIOMEDICAL OPTICS, 2018, 23 (04)

[43] Real-time distortion measurement in a slab structure using hetero-core fiber optic embedded sensors [J].

Nishiyama, M ;

Sasaki, H ;

Watanabe, K .

17th International Conference on Optical Fibre Sensors, Pts 1 and 2, 2005, 5855 :791-794

[44] A calibration-free fiber sensor based on CdZnSe/ZnSe/ZnS quantum dots for real-time monitoring of human thermal activities [J].

Xu, Weijiang ;

Qu, Jian ;

Liu, Yi ;

Bai, Jinke ;

Li, Yan ;

Qu, Shiliang .

MEASUREMENT, 2023, 206

[45] An In-situ Real-Time Optical Fiber Sensor Based on Surface Plasmon Resonance for Monitoring the Growth of TiO2 Thin Films [J].

Tsao, Yu-Chia ;

Tsai, Woo-Hu ;

Shih, Wen-Ching ;

Wu, Mu-Shiang .

SENSORS, 2013, 13 (07) :9513-9521

[46] Implementation of High Precision Laser Interferometry Algorithm for Real-time Displacement Sensing using Multi-core Architecture [J].

Hussain, Tassadaq ;

Amin, Saqib ;

Zabit, Usman .

PROCEEDINGS OF 2017 INTERNATIONAL CONFERENCE ON COMMUNICATION, COMPUTING AND DIGITAL SYSTEMS (C-CODE), 2017, :369-373

[47] Real-time monitoring of the interelectrode gap during electrochemical machining processes using a smart machine tool equipped with an optical fiber Fabry-Pe<acute accent>rot interferometer: Principle and application [J].

Zhou, Fengfeng ;

Chen, Siying ;

Fu, Xingyu ;

Jun, Martin B. G. .

MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2024, 211

[48] Real-time fiber Bragg grating measurement system using temperature-controlled Fourier domain mode locking laser [J].

Yamaguchi, Tatsuya ;

Shinoda, Yukitaka .

OPTICAL ENGINEERING, 2017, 56 (06)

← 1 2 3 4 5 →