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The Design of Entrance Guard Control System Based on RFID

Author: ZhangJie
Tutor: WangYaFang
School: Hebei University of Science and Technology
Course: Communication and Information System
Keywords: RF card Access Control System Reader AT89C52 MFRC500 Database
CLC: TP273.5
Type: Master's thesis
Year: 2010
Downloads: 731
Quote: 6
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Abstract


RFID technology uses radio frequency signal through space coupling (electromagnetic induction or electromagnetic propagation) way to achieve information pass-contact and exchange of information in order to achieve the object recognition markers. Today, RFID technology has been widely applied to various fields, such as: business flow, logistics, information and funds, etc., and rapid development at an unprecedented rate, causing a lot of national attention. At the same time, the research and development of RFID technology in the access control management system is also mature. The access control system is the use of modern electronic and information technology the control buildings inside and outside the entry / exit into / out of the person (or thing), the implementation of the discharge line, refused an electronic automated system of recording and alarm operation. Door sensor, electronically controlled lock or controller, card readers and other control devices installed access control system through the mouth of the channel of the important parts of the key management areas within the building, and with management personnel in the central control room monitoring, to each channel position of the mouth, the passage of the object and the passage of time, the direction of the control of real-time control or set of procedures in order to achieve the security control of the import / export. The basis of analysis of the basic working principle of the RFID technology and RF card access control systems, the key devices - RF card reader design, and LAN access control system network is convenient method for the analysis of design. Specific work as follows: 1) through research, based on the actual application requirements, presented the main function of the specific design of the access control system and the host machine: electronic key, rights management, records management query operator privileges and attendance management. Managers to take advantage of the access control system settings at any time, to identify the officers permission to directly control the illegal entry of personnel, real-time record of each of the controlled area and out of personnel, time, problems can be found in the historical record, analyze and out of personnel. 2) LAN access control system networking program designed specifically suitable for large-scale enterprises and buildings. Traditional access control based on RS485 communication, the transmission distance and the number of nodes is limited, can not remote control and intelligent management issues, proposed using the TCP / IP-based network access control design, enabling more servers, workstations involved in the management to. 3) the the RF reader's design can be divided into a hardware part and the software part. The hardware part of the modular design concept, to read and write chip MFRC500 core, combined with the master module the AT89C52 RS232 interface circuit design read / card dispenser hardware circuit to achieve interoperability between the RF card control center control machine . System MFRC500 reading and writing processes, lower computer program system development using C language, complete communication between the read / card dispenser with IC card data exchange functions. VB6.0 and SQL2000 development system and using the PC program. Develop a humane, safe system operation procedures.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system > Computer control, computer control system
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