BIM model lightweight method based on digital-analog separation

A lightweight and model technology, applied in design optimization/simulation, special data processing applications, geometric CAD, etc., which can solve the problems of uncommon format of lightweight models, low compression rate, and lack of model details.

Pending Publication Date: 2021-05-18
CHINA CONSTR EIGHT ENG DIV CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, major construction companies and software manufacturers are researching BIM lightweight technology, but most of the current BIM model lightweight technologies have problems such as low compression rate, missing model details, missing model information, and non-universal lightweight model formats.

Method used

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  • BIM model lightweight method based on digital-analog separation

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] It should be understood that in the description of the present invention, unless otherwise clearly specified and limited, terms such as "center", "upper", "lower", "left", "right", "vertical" and "horizontal" appear , "inner", "outer", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain ...

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Abstract

The invention discloses a BIM (Building Information Modeling) lightweight method based on digital-analog separation, which is characterized by comprising the following steps of: classifying existing components in a BIM according to a given rule and different categories, and endowing each category with different category codes; reading information data according to different information structures of each category of components of the BIM model, and uploading the information data to a database; an entity of the BIM model being converted into a graphic model, all patches of the graphic model being triangularly sliced, and angular point coordinates of the triangular patches being obtained; automatically optimizing the number of the triangular plates of the surface patch according to the angular point coordinates of the triangular plates, and reducing the number of the triangular plates; the category codes and the component IDs serving as set names of triangular plates of all the components and being used for associating the model components with database model information data. By means of the method, the weight of the weight-level BIM model can be reduced, and great technical convenience is provided for building full-life-cycle BIM application.

Description

technical field [0001] The invention relates to a technology for lightweighting a BIM model, in particular to a method for lightweighting a BIM model based on digital-analog separation. Background technique [0002] The Ministry of Housing and Urban-Rural Development has vigorously promoted BIM technology, and enterprises have benefited from the use of BIM technology, which has made the application of BIM technology more and more deep in the entire life cycle of buildings. Good results have been achieved in all stages of design, construction, operation and maintenance. However, the "heavyweight" BIM model brings great resistance to the BIM application in the whole life cycle of the building, which is not conducive to the communication between all parties involved in the project, and also brings the experience brought by the long cache time of the model to the BIM application platform Problems such as poor quality, loss of architectural details, large number of servers and i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/12G06F30/13G06F30/23
CPCG06F30/12G06F30/13G06F30/23
Inventor 冯世永余翔黄联盟卢国辉王含坤陶长青
Owner CHINA CONSTR EIGHT ENG DIV CORP LTD
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