Identification method of pointer circuit breaker based on patrol robot

A technology of an inspection robot and an identification method, which is applied in the field of pointer circuit breaker identification based on an inspection robot, can solve the problems of large influence of target illumination, inaccurate detection and identification, large changes in target scale and angle, etc.

Pending Publication Date: 2019-02-15
NANJING UNIV OF SCI & TECH
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Problems solved by technology

[0004] The purpose of the present invention is to propose a pointer-type circuit breaker identification method based on inspection robots, which solves the problems in the existing pointer-type circuit breaker detection an

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  • Identification method of pointer circuit breaker based on patrol robot
  • Identification method of pointer circuit breaker based on patrol robot
  • Identification method of pointer circuit breaker based on patrol robot

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[0159] Example 1

[0160] A pointer type circuit breaker identification method based on an inspection robot includes the following steps:

[0161] Step 1. For each inspection point, select an image of the circuit breaker centered at the inspection point as a template image, such as figure 2 As shown, the SVM multi-classifier is trained by using the pointer-type circuit breaker image data set collected in advance;

[0162] Step 1-1. Prepare the training sample set, specifically:

[0163] (1) Collect 100,000 pictures containing pointer type circuit breakers, take the pictures in the on state as the positive sample set, and the pictures in the off state as the negative sample set;

[0164] (2) Crop the picture and delete the redundant information outside the circle of the pointer type circuit breaker;

[0165] (3) Scale the picture into a rectangle with a length and width of 48 pixels;

[0166] Step 1-2, extract the HOG features of the positive and negative samples, specifically:

[0167] (1...

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Abstract

The invention provides a pointer circuit breaker identification method based on patrol inspection robot. The invention is mainly divided into five steps: (1) training SVM multi-classifier by using image data set; 2) that patrol robot arrives at the designate patrol point to obtain the pictures to be detected; 3) carry out coarse positioning and precise position on that target area, and screening the target candidate area to obtain a pointer circuit breaker; 4) carry out image preprocessing on that acquire pointer circuit breaker, extracting a region with the largest connecte area, and detecting the upper and lower circular regions by using the Hough transform; (5) HOG features of circular region are extracted and sent to SVM multi-classifier to get the final recognition result. The invention utilizes machine learning, can effectively complete the detection and identification task of the pointer circuit breaker under different illumination and posture conditions, improves the automationlevel and the accuracy rate of the image identification under the complex environment, and minimizes the problems of missed detection and false detection.

Description

technical field [0001] The invention relates to target detection technology, in particular to a pointer type circuit breaker recognition method based on a patrol robot. Background technique [0002] The power industry is closely related to people's lives. The pointer circuit breaker in the substation is the most basic device in the power industry, and it is very important to the power supply. In recent years, the detection and identification of pointer circuit breakers are not in place, which leads to the phenomenon that the normal transmission of electricity occurs from time to time, causing huge economic losses to people's lives and industrial production. [0003] At present, there are mainly two types of detection methods for circuit breakers. The first is the manual inspection method. However, because most of the circuit breakers in substations exist in the field, the staff are generally far away, and the phenomenon of improper switching and closing cannot be solved in ...

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Application Information

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IPC IPC(8): G06K9/00G06K9/62
CPCG06V20/10G06V2201/07G06F18/2411G06F18/214
Inventor 郭健王艳琴李胜王天野吴益飞袁佳泉施佳伟朱禹璇危海明黄紫霄
Owner NANJING UNIV OF SCI & TECH
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