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In order to protect the safe operation of pipelines from actions of damage, pre-monitoring and positioning is an important technological means. Theoretical and experimental analysis showed the hitting sound signals propagate in the form of transverse wave and longitudinal wave at different speed along the pipeline. In accordance with their arrival time difference and acoustic velocity difference coefficient,...
In order to protect pipeline transportation and prevent from leakage incident caused by manmade damage or natural factors, it is very important to carry out such researches as active protecting and accurate positioning. Designed the pipeline prevention monitoring and leak detecting system based on calculating sound LPCC (linear prediction cepstrum coefficient) and recognizing damage or leak signals...
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