Assembly guiding method and system

A technology of relationship and coordinate system, applied in the field of optical projection, can solve problems such as inability to fully simulate various objective situations, interactive operation of assembly parts, and lack of realism, so as to improve efficiency, realize automation, and improve efficiency and accuracy.

Pending Publication Date: 2021-05-11
新拓三维技术(深圳)有限公司
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Problems solved by technology

Virtual reality technology has strong immersion, which makes the user completely isolated from the outside real environment during the assembly operation, and does not have a sense of reality; the user cannot interact with the real assembly parts in the virtual guidance environment, and can only Use virtual parts to simulate operations; at the same time, in the virtual environment, it is impossible to completely simulate various objective situations encountered in the real environment

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  • Assembly guiding method and system
  • Assembly guiding method and system

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be emphasized that the following descriptions are only exemplary and not intended to limit the scope of the present invention and its application.

[0038] figure 1 It is a structural block diagram of an assembly guidance system according to an embodiment of the present invention. The system includes:

[0039]Projector: used to project structured light gratings and guiding pictures of workpieces to be guided;

[0040] Binocular camera: Two left and right cameras with high resolution of 2448×2048, used to collect the images of the grating calibration plate with grating stripes and the image of the calibration plate without grating, and capture the workpiece to be guided under the current field of view image;

[0041] Processor: connected to the projector and the binocular camera respectively, for calibratin...

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Abstract

The invention provides an assembly guiding method and system. The method comprises the steps: S1, calibrating a binocular camera and a projector so as to obtain a spatial transformation relation between the binocular camera and the projector; S2, using the calibrated binocular camera to collect a workpiece image of a to-be-guided workpiece in the current field of view, and performing three-dimensional reconstruction to obtain a new point cloud; and S3, calculating a transformation relation between the complete point cloud and the new point cloud according to a corresponding relation between the mark points in the complete point cloud of the to-be-guided workpiece and the mark points in the new point cloud, according to the transformation relationship between the complete point cloud and the new point cloud and the spatial transformation relationship between the binocular camera and the projector obtained in the S1, transforming the complete point cloud to a projector coordinate system, and rasterizing the complete point cloud into a to-be-projected guide picture for projection so as to realize assembly guidance. According to the method and system, real-time scanning reconstruction and guided assembly of the workpiece can be achieved, and the efficiency and precision of the assembly process are improved.

Description

technical field [0001] The invention relates to the field of optical projection technology, in particular to an assembly guidance method and system. Background technique [0002] At this stage, the assembly process in the traditional manufacturing industry still requires workers to consult the installation manual before proceeding. This method usually takes a long time for workers to understand before extracting effective information, which is inefficient and has a high error rate. [0003] In recent years, there are some ways to introduce virtual reality technology into the assembly process of manufacturing industry, such as the simulated assembly of large passenger planes in a virtual reality environment. Virtual assembly mainly uses the assembly action of virtual parts to simulate the assembly process in the real scene, focusing on simulation and verification. Virtual reality technology has strong immersion, which makes the user completely isolated from the outside real ...

Claims

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Application Information

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IPC IPC(8): G06T17/00H04N9/31G09B5/02G09F19/18
CPCG06T17/00G09B5/02G09F19/18H04N9/3179
Inventor 任茂栋张笑楠李磊刚张一弛
Owner 新拓三维技术(深圳)有限公司
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