Information Fusion Research In Pipeline Network Fault System Leak Diagnosis

In order to realize the economic security of the long oil pipeline transport, preventingloss and environmental protection, long oil pipeline safety monitoring is still an importanttask. In overall monitoring of the pipe system, leakage detection and localizationespecially occupy an important position. So in-depth study long pipeline leak of intelligentdiagnosis and positioning method, not only has important theoretical significance, but alsohas the very important economic and social value. At present, the pipeline leak detectionpositioning technology has caused wide public concern, has become a pipeline safetymonitoring field of one of the hot research topic.The paper systematically studies the fluid pipelines intelligent diagnosis method andthe position of the leakage, the main research works are as follows:1)Use the high-speed data acquisition card research the pipeline leak fault diagnosisexperiment device and the position of the realization of the experimental data high-speeddata acquisition; And based on Matlab algorithm Labview and design, realizationexperimental data storage, analysis, decision output reach leakage diagnosis and theposition of the request.2)Research the fault diagnosis mechanism of the pipeline leak mechanism, this paperhas prior knowledge of general nonlinear system, this paper introduces a new kind ofnonlinear observer based on the continuous wavelet transform fault detection methods.3)Improve the accuracy of the long distance pipeline leak positioning，it has beenlong distance pipeline safety monitoring field of hot research topic. Therefore, this articleis based on multi-sensor information fusion theory put forward a kind of multisensor fuzzydecision pipe leakage detection and localization strategy, so as to realize the rapid andaccurate detection and localization method.4)Finally, this paper points out that the long distance pipeline leakage diagnosis andpositioning theory method study some existing problems and the direction of development,and cautious were also put forward.This paper is just some theoretical knowledge of basic research and the algorithmanalysis, setting up the experiment device also need to constantly testing and perfect, canapplied in practical system in fault diagnosis.