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

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...

AI Technical Summary

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.

Images