【摘要】 针对目前输油管道泄漏检测准确率低的现状,采用小波奇异性分析的方法,对管道压力信号进行小波分析,检测出信号的奇异点,采用了能够抑制模极大值漂移的改进的ad hoc算法,对奇异点进行定位,对4条管线检测结果表明,该方法可以用于输油管道泄漏监测,并可进行精确的定位。更多还原

【Abstract】 Since the high accuracy of the leak detection can not be achieved at present,singularity analysis based on wavelet transform is adopted to analyze the pressure signals of the oil pipeline and then get the singularity points.To locate the singularity points,an improved ad hoc algorithm,which can restrict the drifting of modulus maximum,is adopted.The detection result of 4 oil pipelines shows that this method can be used to monitor the leakage of the oil pipeline and can accurately locate the leakage points.更多还原