Design And Implementation For Classroom Entrance Guard System Based On RFID

With the rapid development of radio frequency technology, the radio frequency identification (RFID) system with its high reliability, large storage, environment adaptable and fast recognition gradually replace traditional identification systems, to be the mainstream in applications of entrance guard system. We need a set of effective multi-functiong classroom entrance guard system urgently because of the university population increased, personnel hybrid and the shortage of classroom resource in recent years. Use this system can provide convenience for personnel management and allocate classroom reasonably.The article mainly aims at the design for the entrance guard system of the classroom and on the overall design of the hardware and software about the RFID reader at first. It uses STC11F32XE of the51CPU series as main control chip and the ratio of high MFRC522chip as the main chip of radio frequency module. Software part focuses on the realization of the bottom of the RFID communication driver, and based on this, encapsulate the operation of the card into functions which can be transferred by the customers conveniently. Next, specify the modules of the master control, RF read/write, power, serial port, key, liquid crystal display, relay and buzzer in turn. Because there have been some problems in the board making process, so add some description on the attention of board making and wire arrangement. In the end of the article is the PC interface design and implementation. The interface design on PC completed through VB6.0. The data exchanged between PC and RFID reader by serial interface communication. The design of interface is convenient for teachers and staff members to inquire students’ information. The achievment of the system design and development provides convenient for classroom resource management, and lays the foundation for the realization of campus card.