基于AT89C51的智能电风扇调速器的设计2

2010届本科生毕业设计

题目： 基于AT89C51电风扇智能调速器的设计

作 者 姓 名：

学 号：

系 (院)：

专 业：

指导教师姓名：

指导教师职称：

Su Zhou University

Year 2010 Bachelor Graduation Design

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宿州学院毕业论文 基于AT89C51电风扇智能调速器的设计

Title:Intelligent fan speed control based on AT89C51 Design Author:Jian chen Student ID:2006080168

Department: Electronic and Electronic Engineering Major: Electronic Engineering and Automation Instructor: Li guang yu Professional Title: Lecturer

January 15th, 2010

摘 要

本文介绍了一种基于AT89C51单片机的电风扇智能调速器的设计，该设计以AT89C51控制器为核心，巧妙利用温度传感器电路，及时而准确的采集环境温度，利用双向晶闸管对电机进行无级调速，把智能控制技术用于家用电器的控制中，用人体周围的环境温度对风扇进行温控。

关键词：单片机；红外遥控；温度传感器；智能控制。

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宿州学院毕业论文 基于AT89C51电风扇智能调速器的设计

ABSTRACT

This paper presents an intelligent speed regulator based on AT89C51 single-chip microcomputer.It uses surrounding temperature to regulate the speed of an electric fan.A bi-directional thyristor is used for the stepless speed.

Key words:Single-chip microcomputer;temperature sensor;infrared remote control;intelligent control.

目 录

绪论 ................................................................................................................................................................ 5 1 系统概述 ................................................................................................................................................ 6

1.1 AT89C51单片机简介 ............................................................................................................ 6 1.2 本设计任务和主要内容 ......................................................................................................... 6

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宿州学院毕业论文 基于AT89C51电风扇智能调速器的设计

2 系统原理 ................................................................................................................................................ 7

2.1 系统总体设计 ........................................................................................................................... 7 2.2 控制装置原理 ........................................................................................................................... 7 3 系统主要硬件电路 ............................................................................................................................. 8

3.1 温度检测电路和显示电路 .................................................................................................... 8

3.1.1 DS18B20的温度处理方法 ..................................................................................... 8 3.1.2 温度传感器和显示电路组成 ................................................................................. 9 3.2 控制装置原理 ......................................................................................................................... 10

3.2.1 电机调速原理 .......................................................................................................... 10 3.2.2 电机控制模块设计 ................................................................................................. 11 3.3 遥控电路 .................................................................................................................................. 12

3.3.1 发射电路.................................................................................................................... 12 3.3.2 接收电路和控制电路 ............................................................................................. 13 3.4 控制键电路 .............................................................................................................................. 13 4 系统软件设计 ..................................................................................................................................... 15

4.1 主程序 ....................................................................................................................................... 15 4.2 数字温度传感器模块和显示子模块 ................................................................................ 16 4.3 电机调速与控制子模块 ............................................................................................................. 17 结束语 ......................................................................................................................................................... 19 参考文献 .................................................................................................................................................... 20 附录一 ......................................................................................................................................................... 21 附录二 ......................................................................................................................................................... 25

绪 论

近些年来，随着空调行业的迅速发展，空调价格的大幅度“跳水”，电风扇行业曾被普遍认为是“夕阳产业”。其实并非如此，市场人士称，家用电风扇并没有随着空调的普及而淡出市场，近两年反而出现了市场销 …… 此处隐藏：3291字，全部文档内容请下载后查看。喜欢就下载吧 ……