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发明授权
CN106989282B 管道泄漏虚拟声波检测方法及系统 失效 - 权利终止

管道泄漏虚拟声波检测方法及系统
摘要：
本发明涉及一种管道泄漏虚拟声波检测方法，包括：获取管道上游压力信号和管道下游压力信号。将所述管道上游压力信号和所述管道下游压力信号转换为管道上游虚拟声波信号和管道下游虚拟声波信号。若在所述管道上游虚拟声波信号和所述管道下游虚拟声波信号中都检测到异常信号，则进行泄漏定位和报警。通过建立声波信号变送器的离散化数学模型，以实测压力信号为输入，得到虚拟声波信号。在无需实际安装声波信号变送器的前提下，实现管道泄漏的高灵敏度检测。
摘要（英）：

The invention relates to a virtual sound wave detection method for pipeline leakage. The virtual sound wave detection method comprises: obtaining a pipeline upstream pressure signal and a pipeline downstream pressure signal; converting the pipeline upstream pressure signal and the pipeline downstream pressure signal into a pipeline upstream virtual sound wave signal and a pipeline downstream virtual sound wave signal; and if detecting that both the pipeline upstream virtual sound wave signal and the pipeline downstream virtual sound wave signal are abnormal signals, carrying out leakage positioning and alarming. The virtual sound wave signals are obtained by establishing a discrete mathematics model of a sound wave signal transformer and using the actually measured pressure signals as inputs. The high-sensitivity detection of pipeline leakage is realized without actually mounting the sound wave signal transformer.

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