【摘要】 基于虚拟仪器技术设计开发了用于“电工电子技术”课堂教学的便携式演示实验箱，并在课程核心知识点的课堂教学中设计引入了演示实验。便携式演示实验箱集成了高清拍摄仪和视频切换模块，基于LabVIEW开发的控制软件可以实现教师操作实验场景的拍摄和测试结果的综合显示，进而投影至线下多媒体教室的大屏幕，便于授课时学生观看和学习。教学实践说明，以便携式演示实验箱开展的演示实验直观、生动，激发了学生的学习热情，提高了理论课教学效果。更多还原

【Abstract】 Based on the virtual instrument technology, a portable demonstration experiment box is designed and developed for the classroom teaching of electrical and electronic technology, and the classroom demonstration experiments are introduced into the classroom teaching of the core knowledge of the course. The demonstration experiment box integrates a high-defnition camera and a video switching module. The control software developed based on LabVIEW can realize the shooting of experimental scenes by teachers and the comprehensive display of test results, which can then be projected onto the large screen of the ofine multimedia classrooms for students to watch and learn. Teaching practice has shown that the demonstration experiments conducted with portable demonstration experiment boxes are intuitive and vivid, inspiring students’ learning enthusiasm and improving the efectiveness of theoretical course teaching.更多还原