基于红外对射原理的课堂人数统计系统设计

摘要

针对高校教师利用上课时间进行课堂点名而造成课堂教学时间减少造成的问题,本文设计了一种基于红外对射原理的两道红外门禁系统,通过该系统可以监测学生进出教室情况,并通过485总线实现教室前后门数据的统一,实现对教室当前人数进行实时监测.实验结果表明,该系统节省教师点名时间,提高课堂时效,达到预期设计目标.%On the college cassroom,the conflicts of named necessity and naming spend time lead to the class time reduce, which plagued the teacher for a long time.In this system, design two infrared accesses based on infrared radiation principle , which can monitor students in or out the classroom and make the classroom's front door and backdoor data which students in or out correct. The system can real-time monitoring the classroom students' number and it saves teacher named time and improve the classroom efficiency.