Virtual and real combination display system and method for photoelectric effect experiment

Abstract

The invention relates to a virtual and real combination display system and method for a photoelectric effect experiment. The system is composed of a real scene capture module, a virtual reality fusionmodule and an interaction operation module. A pre-processed natural image card in a real scene is captured through a mobile device or a regular self-contained camera of a computer, the spatial position and the direction of the card are calculated and mapped to a three-dimensional model generated in real time of a virtual photocell or a virtual electrical component, the spatial position and the direction of the card are synthesized with a captured real scene to obtain a virtual reality fusion scene, an experimenter can directly click a virtual button preset on the natural image card through ahand, interaction with the virtual reality fusion scene is carried out to observe the photoelectric effect electron motion state that is invisible in real life, and experimental rules are explored. The system and the method are advantaged in that the system and the method are applied to physics experiment teaching, the equipment is simple, cost is low, interaction behaviors are natural, learners can adjust parameters of optical frequency, light intensity and the voltage on both sides of the photocell at any time, the photoelectric effect phenomenon is observed, and the good teaching effect isachieved.

Description

technical field [0001] The present invention belongs to the field of physics teaching experiment, specifically, it is a virtual reality combination display system and method for photoelectric effect experiment. Middle school physics classroom teaching or students' independent experiments. Background technique [0002] Augmented reality (AR) is a technology that combines the real environment and the virtual scene. It integrates computer graphics, computer vision, image processing, photoelectric imaging, fusion display, multi-sensor and many other disciplines. ) technology (Cai Su, Wang Peiwen, Yang Yang, Liu Enrui. A review of the educational application of augmented reality (AR) technology [J]. Journal of Distance Education, 2016,34(05):27-40) . The difference between augmented reality and virtual reality is that it is completely immersed in a virtual environment: it emphasizes the fusion of virtual and reality, and combines virtual objects into the real environment. The ...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: to overcome the shortcomings of the current physical experiment equipment, which are complex, costly, and unable to display the microscopic world, and the virtual experiment has a weak sense of presence and weak expressiveness, and provides a computer or mobile device. The photoelectric effect optical experiment combined virtual reality display system and method, the experimental process is simple, green and environmentally friendly, the required equipment is not complicated, the operation is natural and convenient, the data of the experimental process and the phenomenon of the micro world are superimposed and displayed on the real scene presented on the screen in real time , suitable for teachers to show the experimental process to students, and also suitable for students to conduct independent inquiry experiments to explore or verify the law of photoelectric effect

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