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Method and system for establishing mapping between BIM model and three-dimensional cloud model

A mapping method and cloud model technology, applied in the field of mapping, can solve problems such as single means, low efficiency, and lack of practicability.

Inactive Publication Date: 2020-03-27
GUANGDONG BOZHILIN ROBOT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the limitation of technical level, in the past implementation projects, the BIM model is usually out of touch with the actual situation on site, and the size of the BIM model often deviates from the actual building, thus lacking practicality
Moreover, the current data collection, collation and analysis often have single means and low efficiency, making it difficult to provide necessary on-site data information for actual engineering construction

Method used

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  • Method and system for establishing mapping between BIM model and three-dimensional cloud model
  • Method and system for establishing mapping between BIM model and three-dimensional cloud model

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Embodiment 1

[0077] Embodiment 1, a method for establishing a mapping between a BIM model and a three-dimensional cloud model of the present invention solves the overall alignment problem of the BIM model and the three-dimensional architectural scan model in terms of scale, rotation and translation. After semantic segmentation, find the surface corresponding to the BIM model to realize the mapping between the surface of the BIM model and the 3D scanning model. After establishing the surface relationship between the BIM model and the 3D scanning model, go one step further and establish the relationship between the rooms in the two models. Correspondence.

[0078] Such as figure 1 As shown, the method for establishing a mapping between a BIM model and a three-dimensional cloud model according to an embodiment of the present invention specifically includes:

[0079] Step 1. Analyze the BIM model M BIM Analyze and export the BIM model M at the same time BIM Structural and semantic information betw...

Embodiment 2

[0108] Embodiment 2, a mapping system between a BIM model and a three-dimensional cloud model according to the present invention, such as Figure 4 Shown include: model analysis module, coordinate transformation module and surface mapping module.

[0109] Model analysis module is used to analyze BIM model M BIM Analyze and export the BIM model M at the same time BIM Structural and semantic information between models in the middle. Among them, the structure and semantic information may include, for example, BIM model M BIM The starting and ending corners of each surface in the, and the position information of the model cross section.

[0110] Coordinate transformation module is used to build BIM model M BIM With scan model M scan The coordinate transformation between and the realization of BIM model M BIM And scan model M scan Rotation, translation and scale transformation between the two to realize the BIM model M BIM And scan model M scan Alignment on the whole. Specifically, t...

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Abstract

The invention provides a method for establishing mapping between a BIM model and a three-dimensional cloud model, which comprises the following steps: step 1, analyzing a three-dimensional structure in the BIM model, and analyzing and exporting structure and semantic information between models in the BIM model at the same time; 2, coordinate transformation between the BIM model and the scanning model is established, rotation, translation and scale transformation between the BIM model and the scanning model are achieved, and alignment of the BIM model and the scanning model on the whole is achieved. The invention further provides a system for establishing the mapping between the BIM model and the three-dimensional cloud model. According to the method, the problem of overall alignment of theBIM model and the three-dimensional building scanning model in scale, rotation and translation can be solved, the BIM model corresponds to the scanning model, and guidance is provided for building high-precision measurement and guiding operation of other indoor robots.

Description

Technical field [0001] The invention relates to a mapping method and system, in particular to a method and system for establishing a mapping between a BIM model and a three-dimensional cloud model. Background technique [0002] With the continuous improvement of engineering informatization, BIM (Building Information Models) technology has been widely promoted and implemented in the construction field. Due to the limitation of the technical level, in the past implementation projects, the BIM model is usually out of touch with the actual situation on site, and the size of the BIM model often deviates from the actual building, thus lacking practicality. In addition, the current data collection, sorting and analysis methods are often single and inefficient, making it difficult to provide necessary field data information for actual project construction. [0003] After real-time modeling of the on-site building with a high-precision 3D scanner, the connection between the actual on-site ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13G06T17/00G06T19/00
CPCG06T17/00G06T19/003
Inventor 袁青
Owner GUANGDONG BOZHILIN ROBOT CO LTD
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