智能开关系统

目录

摘要 (2)

Abstract (3)

1前言 (4)

1、开关的介绍 (4)

2、课题的意义 (4)

3、国内外研究现状及发展趋势 (5)

2智能控制开关的设计 (5)

2.1 智能控制开关概述 (6)

2.2本设计任务 (6)

3 智能控制开关硬件设计 (6)

3.1 系统的硬件构成及功能 (6)

3.2 AT89C51单片机及其引脚说明 (7)

3.3 键盘控制和实时显示电路 (10)

3.4 时间掉电存储电路 (11)

3.5 电源电路 (12)

3.6开关控制电路 (12)

4统的软件设计 (13)

4.1 系统设计要求 (13)

4.2 系统程序流程 (13)

5 系统调试与测试结果分析 (13)

5.1 使用的仪器仪表 (13)

5.2 系统调试 (14)

5.3软件调试 (14)

5.4系统仿真 (14)

5.5 仿真结果 (15)

15 图5-5 仿真原理图 (15)

5.6 附实物图 (16)

注释 (17)

参考文献 (18)

7

摘要

随着科技的发展，单片机凭借着微小的体积和较低的成本，可广泛地嵌入到如玩具、家用电器、仪器仪表、工业控制单元、办公自动化设备，成为现代电子系统中最重要的智能化工具。而其在家居智能化中的应用，更是成为当今科技发展的又一主流，伴随着生活水平的提高、社会节奏的加快，能够拥有一个安全，方便，舒适的生活环境，已经成为现阶段人们的迫切要求，各种智能开关就是在这样的环境下开始出现的。

在自动测控系统中，特别是长时间无人值守的测控系统中，经常需要进行长达几小时的定时操作。若采用专门的计时芯片设计，一方面控制复杂，占用硬件资源，另一方面也不经济，一般的时钟芯片价格都比较贵。由于单片机内部有定时器，因此，可以基于单片机设计一款智能控制开关。

智能开关在人们的生活中扮演着重要的角色，给人们的生活带来极大的便利。主要使用在提醒，计划或者规律化生活、工作上。智能开关的历史十分悠久，用途也很广泛。

此智能控制开关是由单片机89C51控制电路、按键与LCD显示电路和掉电存储电路以及电源电路组成，电路十分的简单，主要由51芯片编程实现，功能十分的强大，时间精度非常高，是一款比较实用的智能开关，同时也是一件有欣赏价值的工艺艺术品。

关键词：定时；智能开关；单片机；继电器开关；89C51; LCD;

Abstract

With the development of science and technology, Microcontroller With tiny size and low cost, can be embedded in broader, such as toys, household appliances, instrumentation, industrial control units, office automation equipment, electronic systems become the most important intelligent tools. And its application in intelligent home, but also become the mainstream of scientific and technological development of another, accompanied by improvement of living standards, social pace, to have a safe, convenient and comfortable living environment, people have become at this stage the urgent requirements of a variety of intelligent switch is in such an environment began to emerge.

In the automatic control system, especially in a long time unattended monitoring and control systems, often require long hours of regular operation. The use of a specialized chip design time, on the one hand control of complex hardware resources occupied, on the other hand is not economic, the clock chip prices are generally more expensive. As the MCU internal timer, so you can design a microcontroller-based intelligent control switch.

Intelligent switch in people's lives play an important role in people's lives bring great convenience. Mainly used to remind, plan or rules of life and work. Long history of intelligent switch, use is also very wide.

This intelligent control switch is controlled by the 89C51 microcontroller circuit, buttons and LCD display circuit and power-down memory circuit and power circuit, the circuit is very simple, mainly by the 51-chip programming, function is very powerful, very high time resolution is a More practical models of intelligent switches, but also one has to appreciate the value of the process of art.

Keywords: Timing;Switch ;MCU;relay switch; 89C51; LCD;

7