基于增强现实的工程图学实践教学系统开发

Development of Practical Teaching System for Engineering Graphics Based on Augmented Reality

摘要: 工程图学课程作为工科专业尤其是机械类专业的基础课，旨在培养学生的识图和读图能力，为学生打下工程基础。与此同时，随着科学技术的进步与发展，以VR、AR、MR为主的虚拟技术成为当今教育教学的一大发展方向。利用AR开发引擎Vuforia和虚拟开发平台Unity，将增强现实技术与课程教学实践相结合，开发一套应用于工程图学课程的虚实结合的教学仿真系统，通过课堂实物并结合图样扫描，实现屏幕实时三维模型呈现并进行结构分析和交互操作，辅助教师完成学生读图能力训练，可以有效促进虚拟技术与理论教学融合，激发学生兴趣，提高课程质量及教学的生动性。

Abstract: As a basic course for engineering majors, especially mechanical majors, the course of “Engineering Graphics” aims to cultivate students’ ability to read and read drawings, and lay an engineering foundation for students. At the same time, with the progress and development of science and technology, virtual technology based on VR, AR and MR has become a major development direction of education and teaching today. Using the AR development engine Vuforia and the virtual development platform Unity, the augmented reality technology is combined with the teaching practice of the course, and a set of teaching simulation system combining virtual and real is developed for the “Engineering Graphics” course, through the classroom physical object and combined with the pattern scanning, the real-time three-dimensional model of the screen is presented and the structural analysis and interactive operation are carried out, and the teacher is assisted to complete the student’s reading ability training, which can effectively promote the integration of virtual technology and theoretical teaching, stimulate students’ interest, improve the quality of the course and the vividness of teaching.