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Intrusion alarm method and system based on vibration optical fiber detection and complete action extraction

An action and complete technology, applied in the field of computer vision fusion, can solve the problems of high false alarm rate and false alarm rate, and achieve the effect of reducing cache and reducing operating costs

Pending Publication Date: 2022-07-12
上海微波技术研究所(中国电子科技集团公司第五十研究所)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the invention does not use the algorithm of energy waterfall diagram, signal time-frequency diagram and classification neural network fusion, resulting in high false alarm rate and false alarm rate

Method used

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  • Intrusion alarm method and system based on vibration optical fiber detection and complete action extraction
  • Intrusion alarm method and system based on vibration optical fiber detection and complete action extraction
  • Intrusion alarm method and system based on vibration optical fiber detection and complete action extraction

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Embodiment 1

[0072] According to an intrusion alarm method based on vibrating optical fiber detection and complete action extraction provided by the present invention, such as Figure 1-Figure 11 shown, including:

[0073] Step S1: solve and save the signal, set the threshold to determine the intrusion action signal and alarm;

[0074] Step S2: obtaining the original vibration signal curve and performing normalization and leveling processing;

[0075] Step S3: perform high-frequency high-pass filtering processing on the flattened signal, perform binarization processing on the image, and perform outer contour extraction to obtain a minimum circumscribed rectangle;

[0076] Step S4: perform low-frequency high-pass filtering on the flattened signal, construct a time-frequency image data set of the classification network, and train the EfficientNet classification network model;

[0077] Step S5: According to the minimum circumscribed rectangle information, combined with the matrix obtained b...

Embodiment 2

[0095] Embodiment 2 is a preferred example of Embodiment 1, in order to describe the present invention in more detail.

[0096] Those skilled in the art can understand an intrusion alarm method based on vibrating optical fiber detection and complete motion extraction provided by the present invention as a specific implementation of an intrusion alarm system based on vibrating optical fiber detection and complete motion extraction, that is, the vibrating optical fiber-based intrusion alarm system The intrusion alarm system of detection and complete motion extraction can be realized by executing the steps of the intrusion alarm method based on vibrating optical fiber detection and complete motion extraction.

[0097] An intrusion alarm system based on vibrating optical fiber detection and complete motion extraction provided according to the present invention, comprising:

[0098]Module M1: solve and save the signal, set the threshold to determine the intrusion action signal and ...

Embodiment 3

[0120] Embodiment 3 is a preferred example of Embodiment 1, in order to describe the present invention in more detail.

[0121] The invention belongs to the fields of optical fiber vibration sensing, time domain signal processing and computer vision fusion, and relates to a perimeter security intrusion alarm algorithm combining energy waterfall diagram, complete time domain action signal extraction technology and EfficientNet classification neural network.

[0122] For the defect in the above-mentioned prior art, the technical problem to be solved by the present invention is embodied in the following points:

[0123] 1) The preprocessing operation is an important part of the signal processing part of the energy waterfall diagram generation algorithm. Reducing a large number of related parameters that need to be manually adjusted by the parameter adaptive algorithm helps to select the optimal parameter value more quickly, so as to better Filter out interference signals from a l...

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Abstract

The invention provides an intrusion alarm method and system based on vibration optical fiber detection and complete action extraction, and the method comprises the steps: S1, solving and storing a signal, and setting a threshold value to judge an intrusion action signal and give an alarm; s2, obtaining an original vibration signal curve and carrying out normalized leveling processing on the original vibration signal curve; s3, performing high-frequency high-pass filtering processing on the leveled signal, performing binarization processing on the image, and performing external contour extraction to obtain a minimum enclosing rectangle; s4, low-frequency high-pass filtering processing is carried out on the signals after leveling processing, a time-frequency image data set of a classification network is constructed, and an EfficientNet classification network model is trained; and S5, according to the information of the minimum enclosing rectangle, in combination with a matrix obtained through an OfficientNet classification network, realizing classified alarm. According to the method, the energy waterfall plot with a relatively good effect can be quickly obtained, so that the position point of the suspicious intrusion signal can be quickly obtained in the spatial dimension, and the coverage time of the suspicious intrusion signal can be accurately obtained in the time dimension.

Description

technical field [0001] The invention relates to the field of computer vision fusion, in particular to an intrusion alarm method and system based on vibration optical fiber detection and complete motion extraction. Background technique [0002] In order to ensure the safety of the perimeter of the site and realize the security objectives of pre-discovering, preventing and reviewing intrusion events in the site, a fence-type fiber-optic perimeter security intrusion alarm system is deployed throughout the site. The location and alarm judgment of intrusion events can solve the intrusion alarm problem of ultra-long-distance perimeter in complex geological and environmental conditions, and through the linkage of front-end video review, the visualization of alarm situation and management automation can be realized. [0003] The positioning type vibrating fiber intrusion detection technology determines the specific location of the vibration event by detecting the emission and return...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/62G06N3/04G06N3/08
CPCG06N3/08G06N3/045G06F2218/18G06F2218/04G06F18/2431G06F18/214Y02D30/70
Inventor 侯泽宇桂小刚彭肃家姜大闯周航王静曹德华徐琪李硕祉
Owner 上海微波技术研究所(中国电子科技集团公司第五十研究所)
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