精选优质文档-倾情为你奉上门禁系统设计【摘要】本文门禁系统采用89S52单片机作为控制核心，外围加蜂鸣器控制电路、开门指示灯电路、电控锁控制电路以及8位数码管显示电路等。利用射频卡完成刷卡进门，按钮出门功能。【关键词】89S52单片机；门禁；电控锁；射频卡；权限The design of access control systemAbstract：In this paper，access control system using89S52 single chip microcomputer as the control core，periphery and a buzzer control circuit，the door indicator light circuit，the electric control lock circuit and the 8 digital tube display circuit.Use of RF card brush card to take the door，door function button.Key wor
