Synthetic Analysis and Research of Pipeline Optical Cable Signal in Different Terrain

CAO Wen-chen; ZHANG Tao; ZHENG Yu-heng; SHEN Chen; SUN Xiao; FENG Lan-ting; GAO Jian-zhang; YANG Xin; LIU Chen

doi:10.13756/j.gtxyj.2022.02.008

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Synthetic Analysis and Research of Pipeline Optical Cable Signal in Different Terrain

更新时间：2022-06-15

- Synthetic Analysis and Research of Pipeline Optical Cable Signal in Different Terrain
- Study on Optical Communications Issue 2, Pages: 35-39,68(2022)
- 作者机构：
  
  国家管网集团　西南管道有限责任公司，成都　610000
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2022.02.008
  CLC： TN253
- Published：10 April 2022，
  
  Received：30 August 2021，
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CAO Wen-chen, ZHANG Tao, ZHENG Yu-heng, et al. Synthetic Analysis and Research of Pipeline Optical Cable Signal in Different Terrain. [J]. Study on Optical Communications (2):35-39,68(2022)
DOI：

CAO Wen-chen, ZHANG Tao, ZHENG Yu-heng, et al. Synthetic Analysis and Research of Pipeline Optical Cable Signal in Different Terrain. [J]. Study on Optical Communications (2):35-39,68(2022) DOI： 10.13756/j.gtxyj.2022.02.008.

摘要

西南山区管道光缆穿越许多复杂区域(山地、河流、隧道和农田等)，地质变形和人为破坏等常导致光纤断芯发生，严重影响了管道的安全生产运输。基于光的瑞利散射原理，检测散射光返回时间，判断故障点位置，同时可以采集分析光缆周围的振动信号特征。不同区域由于表层结构差异和背景噪声不同等因素影响，采集到的信号各不相同。文章对不同地形光缆信号进行处理分析后，归纳总结了不同区域下光缆接收到的外界信号特征，有助于感知复杂环境下的管道光缆线路状态，为管道安全运行提供了决策支持，达到了预警的目的，利于后续管道安全预警系统的搭建。

Abstract

Pipeline cable in southwest mountainous areas goes through many complex areas (mountains

rivers

tunnels

farmland

etc.). By geological deformation

man-made damage often leads to fiber core broken

and seriously affects the safety of pipeline production and transportation. Based on the Rayleigh scattering principle of light

the return time of scattered light can be detected

and the position of fault points can be judged. Finally

the vibration signal characteristics around the cable can be collected and analyzed. Due to the difference of surface structure and background noise in different areas

the collected signals are different. In this paper

after processing and analyzing the optical cable signals with different terrain

the external signal characteristics received by the optical cable in different regions are summarized

which helps to perceive the status of the pipeline optical cable line in a complex environment. The results in this paper can provide decision support for the safe operation of the pipeline

and achieve the purpose of early warning

which facilitates the construction of the pipeline safety early warning system in the future.

关键词

光纤传感长输管道信号分析

Keywords

optical fiber sensinglong-distance pipelinesignal analyses

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