基于51单片机的刷卡门禁系统。我不知道啊 我只想要资料-Based on 51 single-chip card access control system. I do not know ah I just want information

限制人员的进出区域,拒绝不速之客,保护公共财产不受非法侵犯.如果请求进入的人员身份合法即经过控制中心授权,电锁将打开否则电锁不会开启并报警。(Restrict the entry and exit of the personnel, refuse uninvited guests, protect public property from illegal infringement. If the person requested to enter the identity is authoriz