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

被引：238
|
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
收藏
页码：2055 / 2057
页数：3
相关论文
共 50 条
  • [21] Real-time processing of a phase-sensitive distributed fiber optic perimeter sensor
    Madsen, C. K.
    Snider, T.
    Atkins, R.
    Simcik, J.
    SENSORS, AND COMMAND, CONTROL, COMMUNICATIONS, AND INTELLIGENCE (C3I) TECHNOLOGIES FOR HOMELAND SECURITY AND HOMELAND DEFENSE VII, 2008, 6943
  • [22] Fast Phase Demodulation Method for Heterodyne Phase-Sensitive OTDR
    Liu, Shuaiqi
    Yu, Feihong
    Shao, Liyang
    Vai, Mang I.
    2022 ASIA COMMUNICATIONS AND PHOTONICS CONFERENCE, ACP, 2022, : 157 - 159
  • [23] Instability Compensation of Recording Interferometer in Phase-Sensitive OTDR
    Stepanov, Konstantin V.
    Zhirnov, Andrey A.
    Gritsenko, Tatyana V.
    Khan, Roman I.
    Koshelev, Kirill I.
    Svelto, Cesare
    Pnev, Alexey B.
    SENSORS, 2024, 24 (11)
  • [24] Vibration Monitoring with High Frequency Response Based on Coherent Phase-Sensitive OTDR Method
    Lu, Yuelan
    Zhu, Tao
    Bao, Xiaoyi
    Chen, Liang
    21ST INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS, 2011, 7753
  • [25] Distributed vibration sensor with a lasing phase-sensitive OTDR
    Correia, Marlon M.
    Margulis, Walter
    Gomes, Anderson S. L.
    Von Der Weid, Jean Pierre
    OPTICS EXPRESS, 2022, 30 (22) : 40243 - 40250
  • [26] Phase Noise Effects on Phase-Sensitive OTDR Sensors Using Optical Pulse Compression
    Loayssa, Alayn
    Sagues, Mikel
    Eyal, Avishay
    JOURNAL OF LIGHTWAVE TECHNOLOGY, 2022, 40 (08) : 2561 - 2569
  • [27] On-field validation of real-time phase-OTDR for roller bearing monitoring
    Franciscangelis, Carolina
    Lindblom, Magnus
    Margulis, Walter
    Tow, Kenny H.
    Sjolander, Ola
    Kahlman, Lars
    Bankestrom, Olle
    SEVENTH EUROPEAN WORKSHOP ON OPTICAL FIBRE SENSORS (EWOFS 2019), 2019, 11199
  • [28] Extended range phase-sensitive swept source interferometer for real-time dimensional metrology
    Shen, Yi
    Ding, Zhihua
    Yan, Yangzhi
    Wang, Chuan
    Yang, Yaliang
    Zhang, Yudong
    OPTICS COMMUNICATIONS, 2014, 318 : 88 - 94
  • [29] Water and fat separation in real-time MRI of joint movement with phase-sensitive bSSFP
    Mazzoli, Valentina
    Nederveen, Aart J.
    Oudeman, Jos
    Sprengers, Andre
    Nicolay, Klaas
    Strijkers, Gustav J.
    Verdonschot, Nico
    MAGNETIC RESONANCE IN MEDICINE, 2017, 78 (01) : 58 - 68
  • [30] Separation and Determination of the Disturbing Signals in Phase-Sensitive Optical Time Domain Reflectometry (Φ-OTDR)
    Wu, Huijuan
    Xiao, Shunkun
    Li, Xiaoyu
    Wang, Zinan
    Xu, Jiwei
    Rao, Yunjiang
    JOURNAL OF LIGHTWAVE TECHNOLOGY, 2015, 33 (15) : 3156 - 3162
12345