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A virtual pre-assembly algorithm based on vb plug-in and its application

A pre-assembled and plug-in technology, applied in the research and development and application of virtual reality technology, can solve problems such as low degree of automation, difficulty in achieving project-level applications, lack of operability-related processes and guidance documents, etc., to improve accuracy and efficiency , low cost, and optimized construction schedule

Active Publication Date: 2018-02-06
ZHEJIANG JINGGONG STEEL BUILDING GRP
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve a series of problems such as the low degree of automation of the traditional virtual pre-assembly technology at this stage, the difficulty in achieving project-level applications, and the lack of operability-related processes and guidance documents.

Method used

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  • A virtual pre-assembly algorithm based on vb plug-in and its application

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Embodiment Construction

[0028] Below in conjunction with accompanying drawing and embodiment example the present invention is further described:

[0029] A virtual pre-assembly algorithm based on a VB plug-in, including the following core command algorithm steps:

[0030] Step 1, determine the axis: automatically determine the respective centers of each point obtained by the total station through an algorithm, and form an axis;

[0031] Step 2, AL command initial positioning: Call the AL command of CAD itself to align the components to be assembled from any position along the central axis to the target central axis;

[0032] Step 3: Rotate fine-tuning around the central axis: By rotating around the central axis, various rotation angles are obtained, and the minimum total distance is taken to minimize the average distance of the feature point pairs of each component;

[0033] Step 4, Rotation fine-tuning: Around the center point M, the assembled components are fine-tuned, so that the distance between...

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Abstract

The invention belongs to the field of research, development and application of virtual and realistic techniques, and particularly relates to a virtual pre-assembly algorithm based on a VB (visual basic) plug-in and an application. The application comprises the following steps of 1, performing acceptance on a steel element until the steel element is qualified; 2, enabling a total station to position a key point of a joint, and obtaining the local space coordinate of the center point of the cross section by an algorithm; 3, sequentially arranging the steel element into a whole coordinate system from exterior to interior according to the center point of the corresponding cross section to complete the primary position of the steel element; 4, trimming the position of the variable steel element by the virtual pre-assembly algorithm based on the VB plug-in, and finding the optimum space position of the to-be-spliced variable element; 5, eliminating the accumulation error of the to-be-checked steel element, and rechecking. The application solves the problems of low automation degree, difficulty in project-level application, lack of operable processes and instruction documents and the like of the traditional virtual pre-assembly technique in the existing phase.

Description

technical field [0001] The invention belongs to the field of research and development and application of virtual reality technology, and in particular relates to a virtual pre-assembly algorithm and application based on a VB plug-in. Background technique [0002] Virtual pre-assembly technology, which combines 3D measurement technology and 3D building information model, compares the scanned model of the actual processed factory components with the theoretical deepening model in specific software according to a specific method, and performs virtual assembly, that is In the virtual environment, check the possible assembly problems of the actual components to be assembled on site and the interface conditions of adjacent components, so that these manufacturing problems can be quickly corrected in real time in the factory, and finally the overall virtual assembly is completed. [0003] Algorithm (Algorithm) refers to the accurate and complete description of the problem-solving sc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/44
Inventor 徐立丰刘中华杜兆宇傅建尧余国华何敏杰李磊王强强
Owner ZHEJIANG JINGGONG STEEL BUILDING GRP
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