说明：  研究并设计一种基于单片机的红外遥控电子密码锁，介绍了系统软硬件的实现原理及实现方法。系统在不扩 展任何外围芯片的情况下，能够实现密码修改、按键提示、密码错误报警、超次提示、本机开锁、遥控开锁等功能，而且当按键 间隔超时时，有自动复位的特点。系统成本低、可靠性高、使用方便，值得广泛应用
(Research and design a microcontroller based infrared remote electronic locks, introduced the principle and implementation of system hardware and software implementations. The system does not extend to any peripheral chip case, the password change can be achieved, key tips, password error alarm, and Ultra tips, the local lock, remote keyless entry and other functions, and when the key interval times out, with automatic reset feature. System, low cost, high reliability, easy to use, it is widely used)