Geometrical information extraction method based on BIM (Building Information Modeling)

An extraction method and technology of geometric information, applied in the field of geometric information extraction based on BIM model, can solve the problems of slow information interaction, excessive investment expenditure, multi-source information cannot be shared, etc.

Active Publication Date: 2018-01-09
QINGDAO TECHNOLOGICAL UNIVERSITY +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Its benefit is that it can effectively solve the problems that existing BIM models cannot be shared with multi-source information such as VR, GIS, 3D printing, and face recognition, slow information interaction, information loss, serious waste of digital resources, and excessive investment expenditures. Can be widely used in the whole life cycle of civil engineering planning, design, construction, operation and maintenance

Method used

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  • Geometrical information extraction method based on BIM (Building Information Modeling)
  • Geometrical information extraction method based on BIM (Building Information Modeling)

Examples

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Embodiment 1

[0021] A method for extracting geometric information based on a BIM model, comprising the steps of:

[0022] S1. Based on the BIM model, the component unit is numbered with the component as the basic unit;

[0023] There are three kinds of numbering signs in the present invention, and the component unit numbering is the first kind of numbering number sign.

[0024] S2. Based on the BIM model, cut the longitudinal central axis plane and transverse control plane (line) of each component;

[0025] First, based on the BIM model, on the XZ plane in the Cartesian coordinate system, the longitudinal central axis plane of the component in the BIM model is cut with the line connecting the longitudinal center point of the component. Secondly, based on the BIM model, in the YZ plane (except lines) in the Cartesian coordinate system, take the lateral outer edge surface (line) of the component as the reference and parallel to the reference plane (line), and determine several lateral contr...

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Abstract

The invention discloses a method for extracting geometric information based on a BIM model. The methods include numbering and identification sorting, node space coordinate positioning, and parameterized presentation of geometric information of components. The method is characterized by high extraction efficiency, less space occupation for parametric presentation, and flexible application. . Its benefit is that it can effectively solve the problems that existing BIM models cannot be shared with multi-source information such as VR, GIS, 3D printing, and face recognition, slow information interaction, information loss, serious waste of digital resources, and excessive investment expenditures. It can be widely used in the whole life cycle of civil engineering planning, design, construction, operation and maintenance.

Description

technical field [0001] The invention relates to the interdisciplinary fields of civil engineering, graphic processing, mathematical modeling, and computer technology, and in particular to a method for extracting geometric information based on a BIM model. Background technique [0002] After entering the 21st century, Building Information Modeling (Building Information Modeling, BIM) began to be applied to the civil construction industry, becoming the key technology of Internet + civil construction information. This technology establishes a virtual building in the computer through digital means. The virtual building will provide a single, complete and logical relationship building information library, which runs through the entire life cycle of planning, design, construction, operation and maintenance of civil buildings. With the deepening of BIM application, BIM and VR, GIS, 3D printing, face recognition and other technical requirements are increasingly urgent. Geometric inf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T7/60G06T17/10
Inventor 刘文锋
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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