利用射频卡代替传统的钥匙，给每个有权进入的人发一张射频卡，通过卡中的信息进行身份认证。读卡器与单片机实时相连，对 ID 号码进行采集，对信息进行处理判断，然后上传给 PC 机实施信息判断记录，开门记录及控制开关门的相关操作、语音提示操作。 同时应该考虑到人们没有带卡的情况，系统应配有认证密码输入装置，通过单片机或 PC 机对个人密码进行核实从而进行开门与 否的操作。PC 机应具有错误计次输入锁死判断，并把判断信息实时传给显示装置，防止陌生人进行穷举攻击。-Using rf CARDS instead of traditional keys, to give each shall have the right to enter a person a piece of rf card, through the information identification card. Reader and single-chip microcomputer real-time connected to ID number, collection, processes the information, and then pass judgment on PC in implementing the information judgment record, open the door record and control to open and close the relevant operation, voice prompt operations. Should also consider people with no card, system should be equipped with the authentication password input device, through the SCM or PC for personal password verifying and open the door and no operation. PC should have a wrong judgment, and 20-the input locked the judgment to display device, real-time information to prevent strangers exhaustively attack.