一．设计目的

1、学习串行通信的原理和应用。

2、了解异步串行通信的特点。

3、提高动手能力和理论联系实际能力。

二、设计任务和要求

设计并制作一个采用红外遥控的电子密码锁，要求如下：

1、能实现遥控开锁，遥控距离8~10m。

2、具有修改密码、加密和较强的抗干扰能力。

扩展功能：

1、密码输入出错能立即报警。

2、能实现本机键盘开锁。

三．系统构成框图-1. Designed one, learn the principles of serial communication and applications. 2, understanding the characteristics of asynchronous serial communication. 3, enhance practical ability and capacity to integrate theory with practice. Second, the design of tasks and requirements to design and produce a infrared remote control using an electronic password lock, requirements are as follows: 1, can realize remote control unlock, remote control distance of 8 ~ 10m. 2, have to change my password, encryption and strong anti-interference ability. Expansion of functions: one, the password input error can be reported to the police. 2, to achieve the local keyboard lock.三. System Components Diagram