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Power line inspection protection screen intelligent identification system construction method

A technology for intelligent recognition and construction methods, applied in character and pattern recognition, instruments, calculations, etc., and can solve problems such as heavy tasks, fatigue, and misoperation

Inactive Publication Date: 2018-01-09
NANJING UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional power inspection process, such as the inspection of the power protection screen, uses the handbook of the inspector to compare the switches in the equipment with the manual information one by one. The task is heavy and monotonous, and it is easy to cause fatigue and misuse and cause Power accidents, in severe cases, may even lead to large-scale power outages

Method used

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  • Power line inspection protection screen intelligent identification system construction method
  • Power line inspection protection screen intelligent identification system construction method
  • Power line inspection protection screen intelligent identification system construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0075] This embodiment includes the following parts:

[0076] Step 1, label identification.

[0077] Use the color information of the label to binarize the original image (as shown in Figure 2), obtain the area of ​​the label, use the tesseract library to identify the label to obtain the protection screen number, and obtain the corresponding device information through the number.

[0078] Step 2, image correction.

[0079] Use the contour information of the label to obtain the minimum circumscribed rectangle of the contour, obtain the four corner points of the rectangle through the corner detection algorithm, select the coordinates of three corner points, and use the original coordinates of the corner points to calculate the affine transformation matrix A, and convert the matrix A function is corrected on the original image.

[0080] The affine transformation matrix A used in the image correction step, affine transformation is a common operation in machine vision, an arbitrary...

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PUM

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Abstract

The invention discloses a power line inspection protection screen intelligent identification system construction method comprising the following steps: 1, loading a gathered protection screen equipment image, and identifying a label area in the image; 2, rectifying image rotation and zooming; 3, preprocessing the image: cutting the image so as to obtain a new image; 4, forming a Gauss distributionrandomized number for a to-be-identified pixel area in the image obtained in step3, classifying sampling test areas, and keeping positive example pixel areas; 5, using a binary image column accumulation histogram to search proper line segmentation points, thus obtaining images segmented by lines; 6, obtaining a thresholding image of a single to-be-identified pressure plate switch; 7, obtaining position information of each part of the pressure plate switch; 8, calculating relative position relations between the parts so as to determine the switch states, and returning the identified state to auser.

Description

technical field [0001] The invention belongs to the field of machine vision and relates to a method for constructing an intelligent identification system for a protective screen in electric power inspection. Background technique [0002] In order to ensure the stable operation of power equipment, power inspection is an essential part of it. Electric power inspection is to regularly inspect and inspect the equipment and the surrounding environment through the inspectors, and then timely discover possible defects in the equipment and potential safety hazards that may arise, so as to ensure the safe operation of the equipment and the stable operation of the entire system. The entire power grid has penetrated into every corner of people, and the importance of electricity to people can even be said to be no less than that of air. With the continuous development of society, the power grid system is becoming more and more complex, and the importance of power inspection tasks is als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/54G06K9/62
Inventor 杨育彬李瑮
Owner NANJING UNIV
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