基于RFID应用的通用型控制器设计

文章以门禁控制为例,介绍一款基于RFID应用的通用型控制器的设计原理,并给出了利用Proteus软件进行仿真调试的方法。该控制器由RFID卡、天线、读卡模块、单片机、LCD1602显示器等组成,采用AT89SXX系列单片机作为控制芯片,采用EEPROM保存卡号,不怕掉电。采用125kHz射频读卡模块,读卡模块工作方式为主动方式,当RFID卡靠近读卡模块时,卡号连续以串行方式输出,经串口送入单片机或PC机进行处理。可用于公共场所的门禁管理,具有成本低、性能可靠、通用性好、用途广泛等优点,在此电路基础上进行简单应用功能扩展,便能满足各种场合用户的需求。

Design of General-purpose Controller Based on RFID Application

Taking access control as the example,this paper introduces the design principle of an RFID-based general-purpose controller design principles,and gives out the simulation debugging method of using Proteus software.The controller is composed of RFID card,antenna,reader modules,microcontroller,and LCD1602 display,etc.,it adopts AT89SXX series microcontroller as the control chip,EEPROM to save the card number,is not afraid of power-down.Furthermore,the controller uses 125kHz RF card reader module which takes active working manner,when the RFID card is near the reader module,card number is continuously output in a serial manner,and sent into microcontroller or PC through the serial port for processing.The controller can be used as the access control in public place entrances,it features low-cost,reliable performance,versatility,wide application range,moreover on the basis of simple function extension it will be able to meet the needs of users from a variety of applications.