基于单片机的智能门禁系统的设计

Design of Intelligent Door Control System Based on Single Chip Microcomputer

以STC89C51单片机为主体核心,设计一个以IC卡识别为主的智能门禁系统。LM7805与LM1117构成的供电电路,RFID-RC522传感器构成的射频卡检测电路,辅以按键模块、红外接收电路、LCD显示电路、报警模块实现了显示、处理、分析、报警等功能。经实际验证,该系统运行状态良好,可在正常工作条件下在0.5s内正确识别并开启门禁。该系统设计具有较强的通用性,稍加修改便可应用至其他实际现场环境中,具有一定的实用性及参考性。

With STC89C51 as the core, an intelligent access control system based on IC card recognition is designed. The power supply circuit composed of lm7805 and lm1117, the RF card detection circuit composed of rfid-rc522 sensor, supported by key module, infrared receiving circuit,LCD display circuit and alarm module, has realized the functions of display, processing, analysis and alarm. Through practical verification, the system is in good condition and can correctly identify and open the access control within 0.5s under normal working conditions. The design of the system has strong generality, and can be applied to other actual field environment with a little modification, which has certain practicability and reference.