Three-dimensional comprehensive teaching field system and working method thereof

Abstract

The invention belongs to the field of teaching application of information technology, and provides a three-dimensional comprehensive teaching field system and a working method thereof. Depth data of a real teaching space, teacher point cloud data and teaching sound information are collected by means of sensors; basic framework calculation and caching of virtual teaching space data storage, transmission and rendering are realized based on the edge cloud; a spatial index structure of an R tree is adopted, a virtual teaching spatial database model is established, and distributed data storage is achieved; a personalized virtual avatar which is updated in real time is generated by positioning and tracking the action of a user; and the virtual teaching space picture is pushed to a teacher and student display terminal by using a 5G link through coding, uploading, 5G rendering and decoding technologies. According to the invention, the requirements of multiple teaching scenes in remote virtual teaching can be met, and a novel intelligent teaching environment is constructed.

Description

technical field [0001] The invention belongs to the teaching application field of information technology, and more specifically relates to a three-dimensional comprehensive teaching field system and a working method thereof. Background technique [0002] The three-dimensional comprehensive teaching field is a teaching field that integrates physical space and virtual space, and supports situational classroom teaching formed by teachers and students, teaching resources, and virtual and real spaces. Based on a variety of sensors, display terminals, and auxiliary equipment, the real teaching environment, teaching resources, and models, actions, and voice data of teachers and students are collected, combined with technologies such as 3D modeling, virtual reality, holographic imaging, and 5G, to drive virtual avatars and virtual Space, scene and teaching resource interaction. Synchronously simulate the behavior of teachers and students in teaching activities through lip language ...

AI Technical Summary

Problems solved by technology

[0003] At present, there are still the following deficiencies in the construction of a three-dimensional comprehensive teaching field system: (1) Insufficient sense of reality in the virtual teaching space: the current virtual teaching environment modeling involves environmental understanding, spatial positioning, motion capture and other individual technologies. However, it is difficult for virtual avatars to realistically reflect the actions and interactive behaviors of teachers and students in teaching activities, and it is difficult to obtain a good realistic experience

(2) Data transmission delay problem: The real-time fusion of virtual and real teaching spaces needs to realize the real-time transmission and distributed data storage of massive uplink and downlink data between cloud-edge-end, and data delay will have a great impact on the real-time performance of the system , which directly affects the teaching experience of teachers and students on the three-dimensional teaching field system

(3) Lack of content-based teaching interaction support: the three-dimensional teaching field needs to make changes in knowledge explanation, content display, teaching mode, teaching tools and teaching resources to further improve the effect of teaching application

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