Product quality information transmission method based on augmented reality

Abstract

The invention discloses a product quality information transmission method based on augmented reality. A three-dimensional CAD model represented by MBD (Model Based Definition) is used as an information input source, and the product quality information based on manufacturing features is extracted; a CAD model image set is generated, and during the generating process, the association relationship between an image and the manufacturing features is built; and finally, a manufacturing field image and a template image are matched, an attitude parameter of a virtual camera corresponding to a templateimage with the highest similarity is used as an initial attitude of an external camera, and superposition of the product quality information in the real manufacturing field scene is realized. The manufacturing feature is used as a basic carrier for the product quality information, and the requirement of only detecting a specific feature by an operator is met; through building the association relationship between an image and the manufacturing feature, the requirement of the operator for visual features of a part from different perspectives can be met; and by using a tracing registration technology and in combination of an external database, the requirement of transmitting the product quality information to the manufacturing field can be realized, and the detection efficiency and the quality are improved.

Description

technical field [0001] The invention relates to a method for transmitting product quality information based on augmented reality, and belongs to the field of manufacturing product detection. Background technique [0002] In recent years, the concept and method of MBD (Model Based Definition) have been widely concerned and favored in the manufacturing industry. MBD directly marks the dimensions, tolerance technical requirements and other information on the 3D model of the product, and uses the 3D model as the only carrier for product design, manufacturing, testing and other information representation, which can effectively avoid frequent 3D models and 2D drawings in the traditional product design and manufacturing process. The disadvantages of data inconsistency, understanding ambiguity, and collaboration inefficiency brought about by switching have significantly improved and supported the collaboration, parallelism, and integration of digital design and manufacturing, and it...

AI Technical Summary

Problems solved by technology

[0007] The present invention proposes a product quality information transmission method based on augmented reality, provides a product quality information transmission framework oriented to the manufacturing site, and effectively solves the existing problem of visualizing product MBD models through two-dimensional drawings or mobile devices. The product quality information is used to guide processing, quality inspection and other work, resulting in frequent switching of attention of operators and low detection efficiency.

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