| Summary: | 碩士 === 中原大學 === 通訊工程碩士學位學程 === 104 === In recent years, Quick Response (QR) Code is an emerging and popular technology. QR Codes has successfully applied in mobile payment services, digital content download, website quick links, and many other applications. On the other hand, smart devices are becoming increasingly popular in recent years, and almost every student has one in hand. In this thesis, we propose a smart roll call system using QR code. The system has the advantage of rapid response when compared to traditional roll call methods. By using smart phones, the roll call for all the students of a class can be completed in less than ten seconds. To increase the security of the system, we use time-varying dynamic QR codes, and all messages exchanged between the web server and smart phones are encrypted. In addition, the attendance records are automatically stored to a Google spreadsheet. The teacher and students can use these records through a web service at any time and any place later.
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