摘要
管道运输安全是国民经济和人民生活的重要保障,管道泄漏监测成为管道运输安全中需要解决的一大难题。本文提出了一种基于分布式光纤振动传感(DVS)系统实现管道泄漏监测的多维空间数据融合算法,将传感光缆固定在管道侧面,通过DVS系统拾取管道泄漏信号,分别根据时间窗和空间分辨率对管道泄漏信号进行时空域平均,设定合适阈值完成管道泄漏监测报警。实验中对单点泄漏以及多点泄漏进行了测试,单点管道泄漏信号信噪比提升了4.5 dB,单点管道泄漏报警率最高提升了19.53%,多点管道泄漏报警率最高提升了2.29%,实现了对加压0.2 MPa管道泄漏的实时监测报警。
Pipeline transportation safety is critical for guaranteeing the national economy and people’s life,and pipeline leakage monitoring is significant for achieving pipeline transportation safety.This paper proposes a multidimensional spatial data fusion algorithm for pipeline leakage monitoring based on a distributed optical fiber vibration sensing(DVS)system.The optical fiber sensing cable was fixed on the side of a pipeline,and the pipeline leakage signals were picked up by the DVS system.These pipeline leakage signals were averaged in the spacetime domain based on the time window and spatial resolution,respectively.Finally,a suitable threshold was set to complete the pipeline leakage monitoring alarm.Singlepoint and multipoint pipeline leakages are tested in the experiment.The signaltonoise ratio of the singlepoint pipeline leakage signal increases by 4.5 dB,maximum singlepoint pipeline leakage alarm rate increases by 19.53%,and maximum multipoint pipeline leakage alarm rate increases by 2.29%.Notably,realtime monitoring and alarms for pipeline leakage under a pressure of 0.2 MPa are achieved.
作者
刘志伟
尚盈
王晨
赵文安
李常
Liu Zhiwei;Shang Ying;Wang Chen;Zhao Wenan;Li Chang(Laser Institute,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250104,Shandong,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2023年第9期394-399,共6页
Laser & Optoelectronics Progress
基金
国家自然科学基金青年基金(62005137)
山东省高等学校青创科技支持计划(2019KJJ004)
山东省自然科学基金(ZR2019QF011)
山东省重点研发计划(重大科技创新工程)(2021CXGC010704)
山东省重大科技创新工程(2019JZZY010113)
济南市高校“20条”资助项目(2020GXRC010)
齐鲁工业大学科教产融合项目(2020KJCGH14&2020KJCZD18)。
关键词
遥感与传感器
分布式振动传感
时空域
管道泄漏
数据融合
remote sensing and sensors
distributed vibration sensing
spacetime domain
pipeline leakage
data fusion
