基于射频卡式身份识别的智能教室考勤系统

为准确识别学生身份、 统计教室人流量、 防止学生作弊, 设计了一套基于物联网技术、 射频识别技术、 光电检测技术、 无线传输技术相结合的智能教室考勤系统。该系统通过射频识别模块和两对对射式红外传感器进行信息采集, 采集的数据通过串口输出方式传送至嵌入式微处理器进行数据处理, 并显示其结果及作弊蜂鸣提示, 同时通过无线传输装置将数据传至上位机系统进行信息统计与存储。对由51人组成的人流进行系统测试结果表明, 系统能较精确识别学生身份, 检测教室人流量, 特别是对一人持多卡代刷和多人一卡多刷等作弊现象有极好的预防作用, 具有实用性和广泛性。

Intelligent Classroom Attendance System Based on Magnetic Card Identification

In order to accurately identify the student, monitor the visitors flow rate of classroom, prevent students from cheating, we design an intelligentclassroom attendance system based on the Internet of things technology, RFID (Radio Frequency Identification technology), photoelectric detection technology, wireless transmission technology. The system collects information through the RFIDmodule and two alignment type infrared sensors, the data is sent through aserial port to embedded microcontroller, which will show its data processing results and cheating buzzer hints. At last the master controller sends data throughthe wireless devices to PC system which carries out information statistics and storage. Stream of 51 people is used for system testing, and people who come into the classroom include 3 people who hold a card (card of test people 2), 1 person that hold 2 cards (cards of test people 6,7), the other 47 people who hold their own cards. Test results showed that the test people 2,6 and 7 were appeared to cheat, and the total number that comes into the classroom is fifty. Through the test, the system can identify student accurately, monitor the visitors flow rate of the classroom, prevent cheating especially for a person who holds multi-card and many people who hold a card. It is practical and universal.