Broad domain all-optical fiber disturbance sensing network system self-adapting disturbance signal processing recognition device

Abstract

The invention provides a self-adaptive disturbing signal processing recognition device of a wide-domain all-fibre disturbance sensor network system, which is mainly used for the pipeline monitoring of safety detection and monitoring, etc. of pipelines delivering various risky or high-value chemical products. Based on an all-fibre reflection interference distribution type sensor circuit system, a method which adopts wavelet denoising and ICA signal separation and characteristic extraction is provided, with the realization process of two contents: on the one hand, in a data signal register, mixed signals carried with various noises and disturbance information are read out, the signal pre-processing and separation thereof are carried out, the characteristic value is then extracted, a KNN recognition module is entered finally, and the type and property of the input signal are recognized; on the other hand, when the signals to be recognized are processed and recognized, the signals are input into a recognized signal register, after the recognized result analysis of the signals to be input is completed, a main controller decides whether to carry out the manpower interception to the input signals so as to determine the type and property of the input signals further.

Description

technical field

[0001] The wide-area full-fiber disturbance sensing network system is mainly used for pipeline monitoring of various pipelines transporting dangerous or high-value chemical products, as well as wide-area full-fiber wide-area full-fiber for perimeter security monitoring such as monitoring of important warehouses and important terminal warehouses. Disclosed is a disturbance positioning signal processing technology for a disturbance sensing and positioning system, which belongs to the technical field of optical fiber sensing and detection. Background technique

[0002] With the development of science and technology and society, the competition between various countries and regions has become more and more fierce. At the same time, various dangerous and terrorist activities have become more and more intense. Therefore, for some important facilities or areas, a safety monitoring system that meets the needs of modern society is needed to ensure the absolute safety ...

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