Pipeline air tightness monitoring method, equipment and system based on intelligent chip

Abstract

The invention relates to the technical field of intelligent sensors, in particular to a pipeline air tightness monitoring method, device and system based on an intelligent chip, and the method comprises the steps: air leakage interference feature recognition: analyzing the difference between each frequency component of a vibration parameter collected by an intelligent sensor at each position on a pipeline and the corresponding vibration parameter, determining a modal effective index of each frequency component, and screening each frequency component; gas leakage vibration high-frequency deviation analysis: obtaining a power spectrum deviation coefficient of each screened frequency component; gas leakage vibration distribution evaluation: determining a leakage vibration high-frequency concentration coefficient of the collected vibration parameters; and comprehensive air tightness evaluation: analyzing the leakage vibration high-frequency concentration coefficient of each position and other positions on the pipeline and the difference of the vibration parameters, determining the leakage characteristic significance of the pipeline, and judging whether the air tightness of the pipeline reaches the standard or not. Therefore, the accuracy of pipeline airtightness monitoring is improved.

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