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Building information model generation method and system

A technology of building information model and model, which is applied in the computer field and can solve problems such as high-precision BIM difficulties

Inactive Publication Date: 2020-04-03
GUANGDONG BOZHILIN ROBOT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to extract the structural information of the house from the independent point coordinates, there are certain difficulties in generating high-precision BIM

Method used

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  • Building information model generation method and system
  • Building information model generation method and system
  • Building information model generation method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1, such as figure 1 As shown, a method for generating a building information model in an embodiment of the present invention includes:

[0043] Through normal estimation, normal clustering and point cloud segmentation, distinguish the edge points located in the edge area of ​​the building, the corner points located in the corner area of ​​the building, and the points located in the building's indoor 3D point cloud model. planar points of the planar region of the object; and

[0044] Through edge point analysis, corner point analysis and plane point analysis, distinguish the edge points located at the precise edge of the building in the indoor 3D cloud model, the corner points located at the precise corner of the building, and the walls, ceilings, As well as the data of the plane points on the ground, a building information model of the building is generated.

[0045] S1, normal estimation:

[0046] For each point in the indoor 3D point cloud model (called poi...

Embodiment 2

[0067] Example 2, such as figure 2 As shown, a building information model generation system 100 according to an embodiment of the present invention includes a point cloud segmentation module 102 and a structural analysis module 104, wherein: the point cloud segmentation module 102 is configured to use normal estimation, normal clustering and point The cloud segmentation is to distinguish the edge points located in the edge area of ​​the building, the corner points located in the corner area of ​​the building, and the plane points located in the plane area of ​​the building from the indoor three-dimensional point cloud model of the building. The structural analysis module 104 is configured to: through edge point analysis, corner point analysis and plane point analysis, distinguish the edge point located at the precise edge of the building, the corner point located at the precise wall corner of the building, and the The building information model of the building is generated fr...

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Abstract

The invention provides a building information model generation method and system. The building information model generation method comprises the steps that through normal estimation, normal clusteringand point cloud segmentation, edge points located in an edge area of a building, corner points located in the corner point area of the building and plane points located in the plane area of the building are distinguished from the indoor three-dimensional point cloud model of the building; and through edge point analysis, corner point analysis and plane point analysis, the data of edge points located at the accurate edge of the building, corner points located at the accurate wall corners of the building and plane points located on the wall surface, the ceiling and the ground of the building inthe indoor three-dimensional cloud model are distinguished, and the building information model of the building is generated. According to the building information model generation method and system,the high-precision BIM with the real size information of the building can be generated, so that a high-precision map can be provided for indoor navigation, and accurate multi-machine scheduling of different robots is realized.

Description

technical field [0001] The present invention relates to the field of computers, and more particularly to a method and system for generating a building information model. Background technique [0002] Building Information Modeling (BIM) is a kind of design information before construction of engineering buildings. The core of BIM is to use digital technology to provide complete building information for engineering buildings by establishing three-dimensional models of engineering buildings. BIM is more than just a design style, where information such as house dimensions, wall panels, and door and window positions can be used to guide the entire construction phase of an engineering building. During the construction process, there will inevitably be some discrepancies between BIM and real construction results. During construction, workers had to add additional measurements to correct for discrepancies between the two. With the introduction of intelligent manufacturing, robots ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06F30/13
CPCG06T17/00
Inventor 邓辉
Owner GUANGDONG BOZHILIN ROBOT CO LTD
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