Designd And Implementation Of Embedded Access Control And Attendance System

In today's world, science and technology is developing rapidly, and people's consciousness of security is also increasing continuously. Therefore, the access control system is created and widely applied in modern work and people's life. At present, many small and medium-sized enterprises have urgent need of Safety Management, but they don't have enough money to bring in the luxurious access control system. In order to solve this problem, a set of software for embedded access control and attendance system is being designed and implemented in this thesis.By analyzing and studying the characteristics and technology of the existing access control systems, and by analyzing the actual needs of enterprises, a design scheme of software for embedded access control and attendance system is being put forward. Firstly, this thesis presents a brief introduction to the components of the access control system and its system platform, elaborates the software design scheme in whole, and designs the format of the data communication system and the database system. And then, it discusses the key technologies for implementing the system software. Base on that, detailed design and implementation of the access control system software is brought in, and the implementation of the access controller's function module is emphatically introduced. Moreover, integrated test and analysis is given to this system. At last, some improved and optimized ideas about this system are put forward.In the embedded access control and attendance system designed and carried out in this thesis, Radio Frequency Identification Card, which checks the attendance according to the attendance records, is used to bring access control into effect. This system can efficiently carry out the management of access control and attendance. For example, it can set the time of access control, and the times of access control and attendance for festivals or the overtime work. The result of the test shows that the embedded access control and attendance system can control the access of the region effectively, and realize the network and intelligent management.