Design And Implementation Of Cloud Attendance System Based On QR Code Technology

Along with the emergence and development of the Internet, people’s life has entered the information age. In the rapid economic development of China, the information technology play great role.The two-dimensional code technology through information popularization and application for more than20years, and it played a great role in the field of information management. Two-dimensional code has the advantages of low cost, high reliability, strong correcting ability, and anti-counterfeiting ability strong, so it is widely used in all kinds of applications, network card and the logistics management system.The rapid development of cloud database market greatly affects the development direction of database technology, at the same time at home and abroad to provide cloud services giant IT is raising sharply. Living in the cloud has been the fact.Therefore, combining the two-dimensional code technology and database technology is a kind of trend.This paper focuses on the two-dimensional code in the QR code and Sina App Engine platform to database for cloud database was studied, including the code, the QR code image preprocessing of QR codes, QR decoding and Sina App Engine architecture, data model and its extension. On the basis of this study, puts forward the system of two-dimensional bar code technology and cloud database technology combined application that is based on cloud attendance system QR code technology.The system mainly includes the input information module, scanning the card module, attendance analysis module and help module. In order to test the performance of the system, the paper makes the performance test of the system. The results show that, the system can meet the needs of users and has the characteristics of high efficiency, fast, low energy consumption etc. The system provides an important reference for the similar system design method and model.