Radio frequency identification (RFID) technology develops and matures rapidly in recent years. It has been widely used in safety management, object tracking and locating, logistic management, inventory management and many other applications. With the rapid development of automatic identification technology, access control systems are then proposed and develop steadily. As a modern safety management system, access control system integrates automatic identification technology and computer control information technology. However, the access control system based on RFID is proposed not for a long time, and is still immature. It has some shortcomings such as data redundancies and false readings. The main purpose of this paper is to analyze and implement the access control system. An access control system mainly consists of three modules, namely, the certificates management module, the access detection module and the data application module. The paper solves the data redundancy and false reading on RFID reader management. It is organized as follows: It firstly reviews the background and significance of the subject, and then introduces related works on access control system at home and abroad. The development state, applications and technical features of RFID is presented. Next, it analyzes the structure of the access control system, and a design of the access control system is proposed. An access control system is implemented using SQL Server database and MFC framework ultimately. The definition of tag events make RFID data meaningful and then define the behavior. Then the weight method, which weights up and down method, to achieve the identification of tag events. It filters redundancy and false data of the mass RFID data using middleware to improve the data management capabilities and fault-tolerance capabilities. Restricted by time and personal ability, the implement still need further completion, and it would be presented in the last section.
修改评论