为了实现对某特定场所的远程监控和智能化管理,提出了一种基于RFID的门禁管理系统。介绍了系统的硬件和软件设计过程,系统以AT89S52单片机作为主控单元,采用MFRC500读写芯片实现近距离读取IC卡的序列号,通过串口通讯发送至服务器,基于SQ...为了实现对某特定场所的远程监控和智能化管理,提出了一种基于RFID的门禁管理系统。介绍了系统的硬件和软件设计过程,系统以AT89S52单片机作为主控单元,采用MFRC500读写芯片实现近距离读取IC卡的序列号,通过串口通讯发送至服务器,基于SQL Server 2000的信息管理子系统实现对IC卡的注册、验证、存储、查询等管理工作。实验表明系统稳定,可对出入人员进行智能化管理,提高了门禁的安全性和监控能力。展开更多
设计了基于RFID(Radio Frequency Identification)技术的打卡器及射频卡。RFID是一种非接触的自动识别技术,其基本原理是利用射频信号和空间耦合(电感或电磁耦合)或雷达反射的传输特性,实现对被识别物体的自动识别。打卡器基于MF-RC500...设计了基于RFID(Radio Frequency Identification)技术的打卡器及射频卡。RFID是一种非接触的自动识别技术,其基本原理是利用射频信号和空间耦合(电感或电磁耦合)或雷达反射的传输特性,实现对被识别物体的自动识别。打卡器基于MF-RC500射频卡读写系统,以STC89C52RC单片机为核心,辅以必要的外围电路,使打卡器能识别射频卡,并对射频卡输出的信号进行采集和输出。该设计的主要创新点是采用STC89C52RC单片机控制,系统稳定性高,价格低廉,编程简单,功耗较低。展开更多
A significant method in the way the MCU EM78P447A manipulates the RF readerIC MF RC530 ' s functions used in RF IC card application is presented. In this paper, RF reader ICMF RC530's SPI compatible interface ...A significant method in the way the MCU EM78P447A manipulates the RF readerIC MF RC530 ' s functions used in RF IC card application is presented. In this paper, RF reader ICMF RC530's SPI compatible interface is introduced. The kernel technologies including SPI connection,software design, register initiation, request-response between the reader 1C and the MCU,authentication and the proper format of the key are explained. Adopting the serial peripheralinterface is the innovation in the paper. TheSPI communication mode proves feasible and precise.Furthermore, in the way we avoid the abuse of parallel interface.展开更多
文摘为了实现对某特定场所的远程监控和智能化管理,提出了一种基于RFID的门禁管理系统。介绍了系统的硬件和软件设计过程,系统以AT89S52单片机作为主控单元,采用MFRC500读写芯片实现近距离读取IC卡的序列号,通过串口通讯发送至服务器,基于SQL Server 2000的信息管理子系统实现对IC卡的注册、验证、存储、查询等管理工作。实验表明系统稳定,可对出入人员进行智能化管理,提高了门禁的安全性和监控能力。
文摘设计了基于RFID(Radio Frequency Identification)技术的打卡器及射频卡。RFID是一种非接触的自动识别技术,其基本原理是利用射频信号和空间耦合(电感或电磁耦合)或雷达反射的传输特性,实现对被识别物体的自动识别。打卡器基于MF-RC500射频卡读写系统,以STC89C52RC单片机为核心,辅以必要的外围电路,使打卡器能识别射频卡,并对射频卡输出的信号进行采集和输出。该设计的主要创新点是采用STC89C52RC单片机控制,系统稳定性高,价格低廉,编程简单,功耗较低。
文摘A significant method in the way the MCU EM78P447A manipulates the RF readerIC MF RC530 ' s functions used in RF IC card application is presented. In this paper, RF reader ICMF RC530's SPI compatible interface is introduced. The kernel technologies including SPI connection,software design, register initiation, request-response between the reader 1C and the MCU,authentication and the proper format of the key are explained. Adopting the serial peripheralinterface is the innovation in the paper. TheSPI communication mode proves feasible and precise.Furthermore, in the way we avoid the abuse of parallel interface.
