光学与光电技术, 2017, 15 (4): 21, 网络出版: 2017-11-21
基于光纤光栅振动传感的石油管道安全监测系统研究
Research on Oil Pipeline Safety Monitoring System Based on FBG Vibration Sensing
光纤传感 FBG振动传感器 管道监测 信号识别 偏最小二乘判别分析法 optical fiber sensing FBG vibration sensor pipeline monitoring signal recognition PLSDA
摘要
针对目前管道泄漏监测与安全预警技术的不足,提出了光纤布拉格光栅(FBG)振动传感的方法,搭建了管道振动信号实时监测系统,并在石油管道上进行了现场实验。通过对实验得到的时域信号进行初步分析,以及采用基于偏最小二乘判别分析法(PLSDA)的模式识别方法,可以对管道上的噪声、铁锹敲击、铁锤敲击、电钻钻孔信号进行有效区分,且信号识别正确率达到96%,得出FBG加速度振动传感器系统检测管道振动信号具有可行性的结论,为石油管道运输中存在的打孔盗油等破坏性行为的监测提供了可行方案,从而实现管道上振动信号的实时在线监测与科学管理。
Abstract
In view of the shortages of pipeline leakage monitoring and safety warning technology at present, a method of vibration sensing of fiber Bragg grating (FBG) is proposed. The real-time monitoring system of pipeline vibration signals is established, and the field experiments are carried out on an oil pipeline.Through the preliminary analysis of the time domain signals obtained from the experiment and the method of pattern recognition based on the partial least squares discriminant analysis (PLSDA), we can make the noise, hammer, spade and drill signals to distinguish, and the rate of correct recognition reaches 96%. It is concluded that the FBG sensor system can monitor the vibration signals of pipeline. A feasible scheme for the monitoring of the destructive behavior of the pipeline transportation is provided in this paper, so as to realize the on-line monitoring and scientific management of the vibration signals on the pipeline.
徐胜明, 杨爽, 高岗, 孙苗, 汤玉泉, 刘旭安, 李俊. 基于光纤光栅振动传感的石油管道安全监测系统研究[J]. 光学与光电技术, 2017, 15(4): 21. XU Sheng-ming, YANG Shuang, GAO Gang, SUN Miao, TANG Yu-quan, LIU Xu-an, LI Jun. Research on Oil Pipeline Safety Monitoring System Based on FBG Vibration Sensing[J]. OPTICS & OPTOELECTRONIC TECHNOLOGY, 2017, 15(4): 21.