基于GPRS接口的双模式RFID门禁读卡器设计

Dual Mode RFID Entrance Guard Card Design Based on GPRS Interface

为了实现某特定场所的远程监控和智能化管理,设计了一种GPRS接口的双模式RFID门禁读卡器。通过读取来自外接天线接收的无源标签卡射频信号,经过处理后输出给单片机,单片机处理信息后得出标签卡的身份信息,通过GPRS接口输出给连接在Internet上的计算机。系统以AT89S52单片机作为主控单元,射频信号的产生、发送和电子标签卡信息的读写与处理以芯片RC531为主,电子标签数据的GPRS接口输出以芯片SIM900为主,并支持TypeA和TypeB两种模式。应用结果表明,该门禁读卡器设计具有一定的实用性和推广价值。

ln order to realize remote monitoring and intel igent management for specify location.The dual mode RFlD access card reader design based on GPRS interface is introduced.Which reads RF signal from the external antenna and outputs to MCU after processing,MCU obtains the tag identification information and outputs to the computer what connected with internet through GPRS interface.The main control module is AT89S52,generates and sends radio frequency signal,reads and writes and processes tag card information based on RC531 chip,electronic tag data outputs through GPRS interface based on SlM900 chip,and supports two modes of TypeA and TypeB.The results of application show that,the entrance guard card design has a certain practicality and popularization value.