摘要
针对传统的单一管道泄漏检测方法,提出基于多传感器信息融合技术的输油管道泄漏检测与定位方法。首先利用小波分析法对压力、流量进行去噪,并检测波形的奇异点;利用相关分析法来对小泄漏量进行检测,通过首末端压力的互相关函数得到时间延迟,进行泄漏点定位;根据Dempster-Shafer证据推理法把得到的数据作为证据,利用D-S法则合成检测数据,以便对泄漏点进行精确定位。
Considering the pipeline leakage detection and basing on the multi-sensor information fusion technology,an oil pipeline leakage detection and location method was proposed to denoise both pressure and flow through wavelet analysis,and to detect small leakage through correlation analysis,and to get the time delay through cross-correlation function of import and export pressure as well as to locate the leakage by making use of Dempster-Shafer evidence reasoning method and D-S combination rule.
出处
《化工自动化及仪表》
CAS
北大核心
2011年第7期789-792,共4页
Control and Instruments in Chemical Industry
