Wide field full optical fibre destabilization sensing network system limit type disturbance signal processing recognition device

Abstract

The invention provides a specified disturbing signal processing identification device for a wide-domain all-fiber disturbance sensor network system, which is mainly used for pipeline inspection of safety monitoring control, etc. of various pipelines transporting hazardous or high-value chemicals, wherein a data reader (302), a spectral subtraction denoising module (303), a wavelet denoising module(304), an ICA signal separation module (305) and a feature extraction module (306) are connected with a data signal buffer (301) in the front end in series, wherein two output ends of the feature extraction module are respectively connected with an input end of an eigenvalue memory (307) for a signal to be identified and an input end of a QDA recognizer (308); an input end of a category-feature database (309) and an input end of an identified result memory (310) are respectively connected with output ends of the QDA recognizer; an audio player (312), a manual sound monitor (313) and the eigenvalue memory for a signal to be identified are serially connected with the output end of a memory for a signal to be identified in sequence; and the output end of the eigenvalue memory for a signal tobe identified is connected with an output end of the category-feature database.

Description

Technical field [0001] The wide-area all-fiber disturbance sensor network system is mainly used for pipeline monitoring such as pipeline safety monitoring and monitoring for various transportation dangerous or high-value chemical products, and belongs to the technical field of optical fiber sensing detection. Background technique [0002] With the development of technology and society, the competition between countries and regions has become more and more fierce. At the same time, various dangerous terrorist activities have become more and more intense. Therefore, for some important facilities or areas, such as military restricted areas, high-risk restricted areas, airports, nuclear power plants, etc., a security monitoring system that meets the needs of modern society is required to ensure the absolute safety of these facilities or areas. This system must be efficient, real-time, accurate, and intelligent. At present, the technologies used for building perimeter security inspec...

AI Technical Summary

Problems solved by technology

At present, the technologies used for perimeter security inspection of buildings include infrared, microwave, and traditional barbed wire grid technologies, but they all have their own fatal shortcomings, and it is difficult to accurately and complexly process signals. Trespassing efficiency is very low

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