With the worldwide ravaging of the covid-19 epidemic, the traditional face-to-face education systems have been interrupted frequently. It is demanded to develop high-quality online education modalities. The webcasting based online classroom is one of the popular education modalities but suffers from poor teacher-student interactions and and low immersive learning experiences. This thesis aims to improve the online education quality by using the virtual reality (VR) technology. For the purpose of automobile engine education, we develop a VR based engine maintenance learning system. The system includes many teaching and learning components in VR enabled by the Unity engine. Users can immersively experience the complete engine disassembly process through the wearable VR display and interactive devices. The system is designed with an interactive layer, a control layer, and a physical data layer. Such a system architecture effectively separates the specific implementations of different domains and improves the R&D efficiency. Once new object models and process profiles are provided, the proposed system architecture requires no modification of codes for changed learning objects and processes. The efficiency and effictiveness of the proposed method are verfied by various experiments. The developed techniques can be useful for many other applications.

翻译：随着世界范围内对19世纪大流行的破坏,传统的面对面教育制度经常中断,要求发展高质量的在线教育模式。网上网播的在线教室是一种流行的教育模式,但师生互动不善,学习经验不丰富。该论文的目的是利用虚拟现实(VR)技术提高在线教育质量。为了汽车发动机教育的目的,我们开发了一个VR引擎维护学习系统。该系统包括由Unity引擎启用的VR中的许多教学和学习组成部分。用户可以通过可磨损VR显示和互动设备对完整的引擎进行分解处理。该系统的设计带有互动层、控制层和物理数据层。这种系统结构有效地将不同领域的具体实施分开,并提高研发效率。一旦提供了新的对象模型和流程简介,拟议的系统结构就不需要修改改变学习对象和程序的代码。提议方法的效率和准确性可以通过多种实验得到应用。