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 Title:Intelligent fan speed control based on AT89C51 Design Author:Jian chen Student ID: Department: 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
Electronic and Electronic
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。
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 ..............................................................................................................................................................
1 系统概述 ..............................................................................................................................................1.1 AT89C51单片机简介 ..........................................................................................................1.2 本设计任务和主要内容 .......................................................................................................2 系统原理 ..............................................................................................................................................2.1 系统总体设计 .........................................................................................................................2.2 控制装置原理 .........................................................................................................................3 系统主要硬件电路 ............................................................................................................................3.1 温度检测电路和显示电路 ...................................................................................................3.1.1 DS18B20的温度处理方法 ...................................................................................3.1.2 温度传感器和显示电路组成 ...............................................................................3.2 控制装置原理 .........................................................................................................................3.2.1 电机调速原理 ...........................................................................................................