双重密码电子锁电路的设计与实现

Design and realization of the electronic lock circuit with double password

论文提出了一种电子密码锁的设计方案。针对现有密码锁只有单重密码的不足，本文使用用户名和密码双重保障用户的安全。使用红外传感器作为电源开关，达到节能的目的。用Proteus软件对电路进行仿真，制作了实际电路板，对其进行了硬件验证，系统运行稳定。电路由集成芯片和门电路构成，制作成本低，使用灵活，具有一定的应用价值。

In view of the deficiency of the exisdng password lock with single password, a kind of design scheme of the electronic password lock is gived in this paper. By using the usemame and password, user security is doublely protected. Infrared sensor is used as the power switch, achieves the purpose of ener~, saving. The simulation is carried out with Proteus software. The actual circuit is made. Through test and application, the system is stable and reliable. The circuit is composed of integrated chip and gate circuit. It has low cost, flcxible use and practi- cal application value.