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Welding operation training simulation method and system based on augmented reality

A technology of augmented reality and simulation method, which is applied in the field of welding manufacturing, can solve the problems of inaccurate capture of the spatial motion trajectory of the simulated welding torch, unsatisfactory visual effect of the welding process, and unrealistic dynamic simulation effect, so as to avoid the complexity of the global calibration process, The dynamic simulation effect is real and the effect of immersion is strong

Active Publication Date: 2014-08-20
WUHAN ONEW TECH CO LTD
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Problems solved by technology

[0006]Using the first two welding simulation methods, when performing AR (AugmentedReality, Augmented Reality) welding torch spatial positioning, it uses the binocular vision measurement method, binocular vision The measurement equipment is limited by the field of view, the measurement range is small, the measurement distance is short, and the applicability to welding training is not strong
[0007] In addition, the above-mentioned welding simulation method proposed by Lincoln Universal Co., Ltd. only displays the simulated welding process on the display device, and does not integrate the virtual picture with the real scene , for the welding operator, the visual effect of the welding process is not ideal enough, and the dynamic simulation effect is not realistic enough
[0008]Finally, using the simulation simulator provided by Zhengzhou Jiean Hi-Tech, the magnetic field positioning technology is used to locate the trajectory of the welding torch, which is easily affected by electromagnetic interference. The capture of the spatial motion trajectory is not accurate enough

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  • Welding operation training simulation method and system based on augmented reality
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  • Welding operation training simulation method and system based on augmented reality

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Embodiment 1

[0029] Embodiment 1. An augmented reality-based welding operation training simulation method. Combine below Figure 1-Figure 7 The method provided by the present invention is described in detail.

[0030] figure 1 Among them, S101, using a monocular vision positioning method to capture the spatial movement trajectory of the AR welding torch.

[0031] Specifically, in a real environment, the welding operator holds the AR welding torch and performs welding operations on the simulated weldment. At this time, the AR welding torch can be spatially positioned so as to capture the spatial movement trajectory of the AR welding torch.

[0032] The spatial positioning system used in this embodiment is an active monocular vision positioning system, which consists of a luminescent ball placed on the surface of the AR welding torch, a camera mounted on a fixed bracket, an accelerometer, a gyroscope and a computer.

[0033] Computer vision simulates the principle of biological vision. Im...

Embodiment 2

[0091] Embodiment 2, a welding operation training simulation system based on augmented reality. Combine below Figure 8 The system provided by the present invention is described in detail.

[0092] Figure 8 Among them, the system provided by the present invention includes a trajectory capture module 801 , a trajectory display module 802 , an establishment module 803 , an augmented reality display module 804 and a specific screen presentation module 805 .

[0093] Among them, the trajectory capture module 801 is mainly used to capture the spatial trajectory of the AR welding torch by adopting the monocular vision positioning method.

[0094] Specifically, the trajectory capture module 801 uses an optical sensor and a camera to determine the three-dimensional space coordinates of the AR welding torch, and uses a gyroscope to determine the posture of the AR welding torch, thereby capturing the spatial movement trajectory of the AR welding torch.

[0095] The trajectory displa...

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Abstract

The invention discloses a welding operation training simulation method and system based on augmented reality. The welding operation training simulation method includes the first step of catching a space motion trail of an AR welding gun in a monocular vision locating method, the second step of displaying the space motion trail of the AR welding gun on a display screen, the third step of establishing temperature fields and simulated weld joints of weldments in a finite difference method and displaying the established weld joints on the display screen, and the fourth step of displaying virtual images on an augmented reality displayer with a vision stereo display function, wherein the virtual images at least comprise the space motion trail of the AR welding gun and the simulated weld joints.

Description

technical field [0001] The invention relates to the technical field of welding manufacturing, in particular to an augmented reality-based welding operation training simulation method and system. Background technique [0002] With the rapid development of virtual reality technology, through the joint efforts of many scholars and practical users, welding training simulator has made great progress. [0003] At present, Xi'an Jiaotong University and CNPC No. 1 Construction have developed a welding simulator for welder training with the support of China National Petroleum Corporation. The CCD (Charge Coupled Device) camera monitors the virtual welding process, and transmits the monitoring images to the computer. The computer processes and synthesizes the monitoring images in three dimensions, simulates the welding process in the virtual environment, and establishes a corresponding evaluation mechanism. You can judge the quality of your operation through the evaluation given by t...

Claims

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Application Information

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IPC IPC(8): G09B9/00
Inventor 周晖余亮
Owner WUHAN ONEW TECH CO LTD
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