BP network based pipeline security identifying method for optical fiber pipeline leakage monitoring device

Abstract

The invention relates to an identification method for the pipeline safety based on BP network and used in a monitoring device for the fiber pipeline leakage, belonging to the pipeline monitoring technique. The method comprises the following steps: the voltage signal is acquired after the photoelectric conversion of two channels of interference light in the monitoring device for the interference typed distributed optical fiber pipeline by utilizing a synchronous data acquisition card with at least double channels; the eigenvector of the detection signal obtained by calculation is decomposed by the wavelet; a plurality of acquisition samples are selected for each intrusive event in order to train and test a BP neural network; after the model training is completed, the system can acquire the real-time testing signal, extract signal characteristics, import into the well trained model for the online identification of the types of the abnormal events occurring along the pipeline and locate the abnormal events. The invention has the advantages of simple and convenient method, small occupied resource of the system, good real-time quality, which can be realized by a plurality of forms.

Description

technical field [0001] The invention relates to a pipeline safety identification method for an optical fiber pipeline leakage monitoring device based on a BP network, which belongs to the pipeline monitoring technology. Background technique [0002] As one of the important ways of oil and gas transportation, pipeline transportation has played an increasingly important role in national economic construction due to its own advantages. Oil and gas pipelines may pass through various environments along the way, and many factors such as surrounding construction, man-made sabotage (such as drilling oil and stealing oil, etc.), and natural disasters (such as earthquakes, floods, mudslides, and landslides, etc.) may affect the safety of pipelines , And lead to pipeline leakage, once an accident occurs, it will cause huge loss of life and property and environmental pollution. [0003] At present, there are many pipeline leakage detection technologies and methods at home and abroad, b...

AI Technical Summary

Problems solved by technology

This type of method is affected by factors such as the characteristics of the transported material and transporting conditions, and the detection sensitivity is not high

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