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Method for detecting insulator string in three-dimensional laser point cloud data

A technology of insulator strings and point cloud data, applied in image data processing, image analysis, image enhancement, etc., can solve the problems of low extraction speed and precision, and achieve the effect of increasing utilization efficiency, detection speed and accuracy

Active Publication Date: 2021-06-01
GUIZHOU POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are few methods for automatically extracting insulator strings from the point cloud of transmission towers, and the existing methods have low extraction speed and accuracy.

Method used

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  • Method for detecting insulator string in three-dimensional laser point cloud data

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Embodiment Construction

[0029] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0030] Such as figure 1 As shown, a method for detecting insulator strings in three-dimensional laser point cloud data of the present invention comprises the following steps:

[0031] Step S1: Project the tower point cloud T and power line point cloud L in the transmission channel to the XOY plane to form the projected tower point cloud T' and power line point cloud L' respectively. Under the action of no wind, the power line at this time The point cloud L' can be fitted to a straight line;

[0032] Step S2: Extract the overlapping area Z of the tower point cloud T' and the power line point cloud L';

[0033] Step S3: Take the center of the overlapping area Z as the...

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Abstract

The invention discloses a method for detecting an insulator string in three-dimensional laser point cloud data. The method comprises the steps: forming a cuboid region point cloud C including an insulator string point cloud, and enabling the point cloud C to comprise the insulator string point cloud, a part of power line point cloud, and a part of transmission tower point cloud; and detecting the insulator string point cloud in the point cloud C by using an insulator string point cloud detection method based on the hybrid voxel network. Compared with the prior art, the method has the advantages that a better voxel feature encoding method is obtained by mixing the scale voxel feature encoder on the point level, so that the detection speed and precision of the insulator string are improved.

Description

technical field [0001] The invention relates to the technical field of power equipment detection, in particular to a method for detecting insulator strings in three-dimensional laser point cloud data. Background technique [0002] Accurately and automatically extracting the insulator string point cloud from the 3D laser point cloud data of the transmission channel is an important prerequisite for the fault detection of the insulator string. When classifying, the insulator string point cloud will be classified into the transmission tower point cloud. At present, there are few methods for automatically extracting insulator strings from the point cloud of transmission towers, and the existing methods have low extraction speed and accuracy. Contents of the invention [0003] In view of this, one of the purposes of the present invention is to provide a method for detecting insulator strings in 3D laser point cloud data, which can improve the extraction speed and accuracy of in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06K9/46G06K9/62
CPCG06T7/0004G06T2207/10028G06V10/40G06F18/253Y02E60/00
Inventor 徐梁刚时磊杨恒赵建王迪余江顺王时春史洪云
Owner GUIZHOU POWER GRID CO LTD