虚实融合的机械制图实验教学系统设计与实现

Design and Realization of the Experimental Teaching System of Mechanical Graphics Based on Combining Virtual and Reality

摘要: 增强现实技术凭借其交互性、沉浸性将人与虚拟环境无缝融合，在高校各专业的实践教学环节中应用越来越广泛。利用增强现实开发引擎Vuforia和虚拟技术开发平台Unity3D，以工程图学典型图例为基础开发了一套应用于工程图学的实践教学辅助系统。使用者通过智能手机扫描二维图样，在屏幕上实时呈现三维模型并进行结构分析和交互式操作，辅助教师完成学生读图能力的强化，促进虚拟技术与工程图学教学的深度融合，激发学生学习兴趣，提高课程质量和教学的生动性。

Abstract: Augmented reality technology, by virtue of its interaction and immersion, seamlessly integrates human and virtual environment, and has been applied more and more widely in practical teaching of various majors in colleges and universities. Using Vuforia, an augmented reality development engine, and Unity3D, a virtual technology development platform, a set of practical teaching assistant system applied to engineering graphics was developed based on typical illustrations of engineering graphics. Users can scan 2D patterns to present 3D models in real time on the mobile phone screen, and complete structural analysis and interactive operations. This system can assist teachers to strengthen students’ ability about reading graphic, accelerate the fusion about virtual technology and engineering graphics teaching, stimulate interest in learning and develop the quality and vitality of education.