基于MCS-51单片机的智能控制开关的设计（终稿）.doc

2010届本科生毕业设计 题目： 基于MCS-51单片机的智能控制开关的设计 作 者 姓 名：：系　（院）： 　　电子与电气工程系 ：：：讲师SuZhou University Year 2010 Bachelor Graduationl ssignment Title: Based on MCS-51 microcontroller design of intelligent control switch Author: Hao Hao Student ID: Department: Electronic and Electronical Engineering Major: Electrical Information Engineering Instructotr: Li Guangyu Professional Title: Lecturer ? Feburary 20th, 2010 摘 要 单片机发展到今天已经是一项很成熟的技术，使用单片机控制能实现长达几小时的定时操作，有较好的市场发展前景和技术应用价值。针对自动测控系统的要求，设计了一种基于MCS-51单片机控制的智能控制开关, 可以满足长时间无人值守的测控系统的要求。设计电路主要由单片机89C51控制电路、掉电存储电路、按键与LCD显示电路以及电源电路组成。系统能实现实时显示和定时控制显示、定时断电保护、准时对开关进行控制等的功能，是一款比较实用的智能开关。 关键词： 智能控制； 开关； 单片机； 定时 ABSTRACT SCM has been developed to a very mature technology, using SCM to achieve up to a few hours of regular operation, there are good prospects for market development and technology application. The requirements for the automatic control system, designed based on MCS-51 MCU intelligent control switch, to meet long unattended measurement and control systems. Circuit design is composed of 89C51 control circuit, power-down memory circuit, buttons and LCD display circuit and power circuit. System that can display real-time display and timing control, timing power-off protection time of the switch control function, is a more practical intelligent switch. Key words: Intelligent Control; Switch; SCM; Timing  目 录 绪论．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 1 1设计要求 1.1 智能控制开关概述．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 2 1.2 本设计任务．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 2 2 智能控制开关硬件设计．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 3 2.1 系统的硬件构成及功能．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 3 2.2 AT89C51单片机及其引脚说明．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 3 2.3 键盘控制和实时显示电路．．．．．．．．．．．....．．．．．．．．．．．．．．．．．．．．．．．． 4 2.4 时间设置掉电存储电路．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．． 5 2.5 电源电路．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．