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Power line extraction method of electric transmission line based on on-board LiDAR data

A transmission line and extraction method technology, applied in the directions of electromagnetic wave re-radiation, radio wave measurement system, utilization of re-radiation, etc., can solve the problems of difficult line detection, difficult detection and division of power lines, etc.

Active Publication Date: 2013-01-16
GUANGZHOU JIANTONG SURVEYING MAPPING & GEOINFORMATION TECH
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  • Abstract
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Problems solved by technology

For multi-circuit transmission lines on the same tower, because multiple power lines overlap and interfere with each other on the projection surface, it is difficult to detect straight lines, and it is difficult to effectively detect and divide each power line

Method used

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  • Power line extraction method of electric transmission line based on on-board LiDAR data
  • Power line extraction method of electric transmission line based on on-board LiDAR data
  • Power line extraction method of electric transmission line based on on-board LiDAR data

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Embodiment Construction

[0039] For the convenience of the following description, the description of the following nouns is first given:

[0040] LiDAR (Light Detection And Ranging), that is, laser radar;

[0041] GIS (Geographic Information System), geographic information system.

[0042] refer to figure 1 , a power line extraction method for transmission lines based on airborne LiDAR data, comprising:

[0043] S1. Collect point clouds of transmission lines through airborne LiDAR;

[0044] S2. Sampling the cross-sectional point cloud of the transmission line between two adjacent electric towers;

[0045] S3. Clustering the point cloud sampled in each cross-section, and then obtaining the position of the center of each power harness in each cross-section;

[0046] S4, fitting the positions of the centers of the power harnesses in each cross-section to obtain the center line;

[0047] S5. According to the power line splitting method and the line distance, the center line is copied and offset to ob...

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Abstract

The invention discloses a power line extraction method of an electric transmission line based on on-board LiDAR data. The power line extraction method comprises the steps of carrying out point cloud collecting on an electric transmission line through the on-board LiDAR; carrying out point cloud sampling on cross sections of electric transmission lines of two adjacent pylons; clustering the point clouds sampled from each cross section to obtain the position of the center of each power wiring harness at each cross section; fitting the center of each power wiring harness at each cross section to obtain a central line; and copying and shifting the central line to obtain the power wiring harnesses according to a power line splitting method and line intervals. According to the power line extraction method of the electric transmission line based on the on-board LiDAR data, the point cloud classification is unnecessary in advance, the point clouds collected by the on-board LiDAR are directly processed in a three-dimensional space, and the power lines of multi-loop electric transmission lines of the same pylon can be conveniently and quickly detected and extracted. As the power line extraction method of the electric transmission line based on the on-board LiDAR data having excellent performances, the power line extraction method of the electric transmission line based on the on-board LiDAR data can be widely applied to power industries.

Description

technical field [0001] The invention relates to a power line extraction method of a transmission line, in particular to a power line extraction method of a transmission line with multiple loops on the same tower based on airborne LiDAR data. Background technique [0002] The airborne LiDAR measurement system integrates the global navigation satellite system (GNSS), inertial navigation system (INS), laser scanning system and aerial digital photography system. In recent years, it has been widely used in land resources, electric power, transportation, water conservancy and other industries. [0003] The power industry is one of the industries where airborne LiDAR measurement technology is applied earlier and widely. It is mainly used in two aspects. One is the selection of new transmission lines, and the airborne LiDAR measurement technology is used to efficiently obtain the ground level of the proposed line corridor. and attachments (buildings, vegetation) information to real...

Claims

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Application Information

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IPC IPC(8): G01S17/89
Inventor 邱焕斌
Owner GUANGZHOU JIANTONG SURVEYING MAPPING & GEOINFORMATION TECH
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