Method for point cloud data processing and crossover object obtaining of transmission line

A technology of 3D point cloud and transmission line, which is applied in the direction of electrical digital data processing, image data processing, special data processing applications, etc., can solve the problems of no 3D point cloud data processing and intersecting object acquisition methods, etc., and achieve comprehensive data information Rich, precise and practical effects

Inactive Publication Date: 2017-03-15
山东东电电气工程技术有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] To sum up, there is currently no method for 3D point cloud data processing and cross-span acquisition suitable for transmission lines.

Method used

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  • Method for point cloud data processing and crossover object obtaining of transmission line

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Embodiment 1

[0031] A method for processing three-dimensional point cloud data of a power transmission line and acquiring cross-span objects, characterized in that the method includes the following steps:

[0032] 1) according to the information of ground objects in the three-dimensional point cloud data, the topographical object information database is established, wherein the ground object information includes the spatial position, shape, type, and size of the ground object;

[0033] 2) Using 3D laser scanning to obtain the original 3D point cloud data;

[0034]3) Obtaining ground features: adding the ground feature information to the 3D point cloud data by automatically identifying the spatial position, shape, type or size of the terrain features; or adding the ground feature attributes to the 3D coordinates manually The form is added to the 3D point cloud data.

Embodiment 2

[0036] A transmission line three-dimensional point cloud data processing method and a method for acquiring cross-span objects as described in Embodiment 1, the difference is that the terrain and object information database includes tree models, building models, three-line models, road models, and railway models , river model, pipeline model, greenhouse model and nursery model.

Embodiment 3

[0038] A method for processing three-dimensional point cloud data of a power transmission line and acquiring cross-span objects as described in Embodiment 1, the difference is that, in the step 3), first, the ground object information is automatically identified by the spatial position, shape, The matching method of type or size is added to the three-dimensional point cloud data; and then the ground object information is added to the three-dimensional point cloud information map for proofreading by manually assigning three-dimensional coordinates.

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Abstract

Provided is a method for point cloud data processing and crossover object obtaining of a transmission line. A terrain and ground object information database is established according to actual information of terrain and ground objects in three-dimensional point cloud data; original three-dimensional point cloud data is obtained by utilizing three-dimensional laser scanning; and the ground objects are obtained. On the original basis of not changing the original point cloud data, no modeling rendering processing is performed, spatial information at any point is not changed, he point cloud data of the various ground objects is obtained accurately; and according to concrete requirements of design disciplines, a topographic map suitable for three-dimensional design of a high-voltage transmission line is formed, which is achieved internationally for the first time and is a breakthrough in the technical field of track design.

Description

technical field [0001] The invention relates to a method for processing three-dimensional point cloud data of a power transmission line and acquiring cross-span objects, and belongs to the technical field of the electric power industry. Background technique [0002] Three-dimensional laser scanning technology is a high-tech that began to appear in the mid-1990s, and it is another new breakthrough in surveying and mapping technology after the GPS space positioning system. It can truly achieve rapid reverse 3D data acquisition and model reconstruction directly from the real object, that is, the reconstruction of panoramic 3D measured data from 3D to 3D. It uses the method of high-speed laser scanning measurement to quickly obtain the three-dimensional coordinate data of the surface of the measured object with a large area and high resolution. It can quickly and massively collect spatial point information, and can directly reflect the real-time, changing, and real morphologica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06T15/00
CPCG06F16/29G06T15/00G06T2215/16
Inventor 金付芹金丽勇
Owner 山东东电电气工程技术有限公司
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