Aerial image-based method for detecting insulator deficiency in power transmission line

A technology of power transmission lines and aerial images, applied in the field of remote sensing images, can solve problems such as national property loss, power outages, failure to detect in time, etc.

Active Publication Date: 2017-06-20
TIANJIN UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

There are many transmission lines built in uninhabited areas such as mountains, rivers, lakes and seas, coupled with complex environmental, geographical and climatic conditions, this has a very adverse impact on traditional manual inspections, making staff sometimes fail to The problem can be found in time, which makes the follow-up problem solving encounter great difficulties. Once a short circuit or other problems occur, a large-scale power outage occurs, causing the loss of national property and the inconvenience of people's daily life.

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  • Aerial image-based method for detecting insulator deficiency in power transmission line
  • Aerial image-based method for detecting insulator deficiency in power transmission line
  • Aerial image-based method for detecting insulator deficiency in power transmission line

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Embodiment Construction

[0023] In order to make the technical solution of the present invention more clear, the specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.

[0024] 1. Make a dataset. Collect the pictures with missing insulators taken by line patrol, and divide them into training set, verification set and test set according to a certain ratio. The pictures should be preprocessed, and the size should be uniformly processed as 600×400. After that, the insulator missing parts in the pictures should be processed Annotate, get the xml file, and complete the dataset.

[0025] 2. Perform image enhancement. Considering the small amount of data in aerial images of power transmission lines, in order to improve the robustness and recognition accuracy of the system, we perform image enhancement on the images in the training set and test set.

[0026] (1) Add image noise. An input image f(x,y) is processed to produce a ...

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Abstract

The invention relates to an aerial image-based method for detecting insulator deficiency in a power transmission line. The method comprises the steps of 1, constructing a database; 2, training a detection module, in which a rapid detection network faster-RCNN is employed and comprises a detection network fast-RCNN and a regional generation network RPN; 3, constructing the detection module by cross training and slight adjustment of the network, in which the network is trained again by employing a cross training method, and the detection network fast-RCNN and the regional generation network RPN are combined to be an end-to-end convolutional neural network so as to construct a deficient insulator detection module; and 4, detecting an image to be detected by the detection model to obtain a candidate frame of an insulator target, adjusting a threshold value of the candidate frame, and performing non-maximal suppression on the candidate frame to obtain a final candidate frame.

Description

technical field [0001] The invention belongs to the technical field of remote sensing images, and relates to a method for detecting missing insulators in inspection aerial images. Background technique [0002] Ensuring the reliability and stability of transmission lines is a very important content of smart grid construction. The insulator plays a big role in it. It is a special insulation control that can play an important role in overhead transmission lines, including supporting lines, electrical insulation, etc.; but at the same time it will often fail, dirty, Faults such as cracks and breakages pose a great threat to the safe operation of transmission lines. According to statistics, accidents caused by insulator failures have become the highest proportion of power system failures. Therefore, it is particularly important to monitor and check the condition of insulators and complete fault diagnosis in time. [0003] China has a vast territory, complex terrain and diverse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/02
CPCH02G1/02
Inventor 侯春萍章衡光杨阳管岱郎玥
Owner TIANJIN UNIV
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