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Method and device for extracting point cloud data of electric transmission line tower

A transmission line, point cloud data technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of large influence, unreliable point cloud data, and low accuracy of data extraction, so as to improve the accuracy Effect

Active Publication Date: 2017-03-22
BEIJIG YUPONT ELECTRIC POWER TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

This method is greatly affected by the sample. Ideally, most of the data can be extracted, and it is also not suitable for the detection of dangerous points.
[0005] To sum up, the existing point cloud data extraction algorithms suitable for transmission line towers generally have the disadvantages of low accuracy of data extraction, and the extracted point cloud data of towers is not reliable enough.

Method used

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  • Method and device for extracting point cloud data of electric transmission line tower
  • Method and device for extracting point cloud data of electric transmission line tower
  • Method and device for extracting point cloud data of electric transmission line tower

Examples

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no. 1 example

[0028] This embodiment provides a technical solution of a method for extracting point cloud data of transmission line towers. In this technical solution, the point cloud data extraction method of the transmission line tower includes: estimating the tower top position point of the transmission line tower; according to the height of the tower top position point, estimating the tower arm height of the transmission line tower, And according to the estimated height of the tower arm, the transmission line tower is divided into a tower top part and a tower body part; according to the circle fitting method, the point cloud data of the tower top part is extracted; according to the directional bounding box OBB fitting extracting the point cloud data of the tower body part; and merging the point cloud data of the tower top part and the point cloud data of the tower body part to generate the point cloud data of the power transmission line tower.

[0029] see figure 1 , the point cloud da...

no. 2 example

[0046] This embodiment provides a technical solution for the division operation in the method for extracting point cloud data of transmission line poles and towers. In this technical solution, the tower arm height of the transmission line tower is estimated according to the height of the tower top point, and the transmission line tower is divided into a tower top part and a tower body part according to the estimated tower arm height It includes: estimating the height of the tower arm according to the height of the tower top position point and the shape characteristics of the tower arm; and dividing the transmission line tower into tower top part and tower arm according to the height of the tower arm. Tower part.

[0047] see figure 2 , according to the height of the tower top position point, estimate the tower arm height of the transmission line tower, and divide the transmission line tower into a tower top part and a tower body part according to the estimated tower arm heig...

no. 3 example

[0055] This embodiment provides a technical solution for the tower top extraction operation in the point cloud data extraction method of transmission line towers. In this technical solution, according to the way of circle fitting, extracting the point cloud data of the top part of the tower includes: horizontally slicing the point cloud data of the top part of the tower; fitting to extract point cloud data in the horizontal slice; and merging the point cloud data in the horizontal slice to obtain point cloud data at the top of the tower.

[0056] see image 3 , according to the way of circle fitting, extracting the point cloud data of the top part of the tower includes:

[0057] S31. Horizontally slice the point cloud data at the top of the tower.

[0058] Preferably, the point cloud data at the top of the tower is sliced ​​horizontally every certain height span. The point cloud data at the top of the tower forms multiple slices in the vertical direction.

[0059] S32. Per...

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Abstract

The embodiment of the invention discloses a method and a device for extracting the point cloud data of an electric transmission line tower. The method comprises the following steps: estimating the tower top position point of the electric transmission line tower; estimating the tower arm height of the electric transmission line tower according to the height of the tower top position point, and dividing the electric transmission line tower into a tower top part and a tower body part according to the estimated tower arm height; extracting the point cloud data of the tower top part according to a circle fitting manner; and extracting the point cloud data of the tower body part according to a fitting manner towards an oriented bounding box (OBB). According to the method and the device for extracting the point cloud data of the electric transmission line tower provided by the embodiment of the invention, the accuracy of point cloud data extraction of the electric transmission line tower is improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of intelligent inspection of transmission lines, and in particular to a method and device for extracting point cloud data of transmission line poles and towers. Background technique [0002] The contradiction between overhead transmission lines and trees is a serious threat to the safe operation of the power grid. Clearing up tree barriers has become an important and difficult task for operation and maintenance units to ensure the safe operation of power facilities. Trees, bamboo and other tall trees in the transmission line corridors have a great impact on the work of the operation and maintenance unit due to the loss of line tripping events caused by the annual road, the manpower and material resources consumed by clearing tree barriers, and compensation fees. Extracting the coordinates of the tower and separating the tower data from other data such as vegetation provides a data b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/00
Inventor 谭弘武杨鹏黄朝华
Owner BEIJIG YUPONT ELECTRIC POWER TECH
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