【正文】 I 畢業(yè)設(shè)計（論文） 全自動洗衣機的設(shè)計 學(xué)生姓名： 學(xué)號 ： 聯(lián)系電話： 專 業(yè)： 機電一體化 專業(yè)年級： 10機電（ 1）班 指導(dǎo)教師： 填寫時間： 20211024 II 摘 要 隨著數(shù)字技術(shù)的快速發(fā)展，數(shù)字技術(shù)被廣泛應(yīng)用于智能控制的領(lǐng)域中。單片機以體積 小、功能全、價格低廉、開發(fā)方便的優(yōu)勢得到了許多電子系統(tǒng)設(shè)計者的青睞。它適合于實時控制，可構(gòu)成工業(yè)控制器、智能儀表、智能接口、智能武器裝置以及通用測控單元等。 本文以 AT89S51 單片機為核心設(shè)計了全自動洗衣機控制系統(tǒng)，本系統(tǒng)實現(xiàn)了對洗衣機整個洗衣過程的控制，包括用戶參數(shù)輸入、洗衣、脫水和結(jié)束報警四個階段?？刂葡到y(tǒng)主要由電源電路、單片機控制系統(tǒng)和外部硬件電路三大模塊組成。電源電路為單片機主控系統(tǒng)提供 5v 的直流電壓；單片機主控系統(tǒng)負(fù)責(zé)控制洗衣機的工作過程，主要由 AT89S51 單片機、數(shù)碼管、按鍵、蜂鳴器、 LED 指示燈組成；外部硬件電路有繼電器、三極管、 LED 燈組成。 本系統(tǒng)的電路并不復(fù)雜，給 AT89S51 單片機載入軟件程序后，能夠?qū)崿F(xiàn)全自動洗衣機的基本功能。雖然不能與電器市場上的洗衣機控制系統(tǒng)媲美，但也具有一定的實用性。 關(guān)鍵詞 ： AT89S51；用戶參數(shù)；繼電器；控制系統(tǒng)； LED III Abstract With its rapid development, digital technology is widely used in the field of control system. Single chip microcontroller is favored by many electronic system designers for its smallness, full function, low price and easy application. Its pretty fit for realtime control as a core in industrial controller, intelligent apparatus, intelligent interface, intelligent weapon device, universal measure control unit, etc. This article designs a fullautomatic washing machine control system with AT89S51 as core. This system realizes whole working course of fullautomatic washing machine, including four parts: user parameter input, wash, dehydrate and ending music play. Hardware system is made up of three modules: power supply circuit, digital control circuit and machine control circuit. Power supply circuit provides steady DC 5V voltage for digital control circuit and AC 220V for motor. Digital control circuit takes charge of controlling the working course. It consists of AT89S51, doublefigured moncathoded numeral display, buttons, buzzer, LED. Machine control circuit realizes the functions of water level detect, motor driven, water import and export, it consists of water level detector, motor, transmission system ponents and penstocks. After downloading the program to AT89S51, this circuit can realize basic functions of fullautomatic washing machine. It seems hard for this control system to pare with perfect ones in the electrical appliance market, but it has certain practicability. Keywords: AT89S51 。 User parameter input 。water level detector 。 Control system 。LED 目 錄 摘 要 ................................................................................................................................ I Abstract ................................................................................................................................III 引 言 ............................................................................................................................... 1 第 1 章 緒 論 ................................................................................................................... 2 課題開發(fā)背景 ........................................................................................................... 2 設(shè)計的目的和意義 ................................................................................................... 2 國內(nèi)外 現(xiàn)狀及水平 ................................................................................................... 2 第 2 章 設(shè)計方案 .............................................................................................................. 5 設(shè)計任務(wù) ................................................................................................................... 5 洗衣機的設(shè)計方案 ................................................................................................... 5 按鍵 ................................................................................................................. 5 洗衣程序 ......................................................................................................... 5 設(shè)計總方框圖 ................................................................................................. 6 控制系統(tǒng)的功能 ....................................................................................................... 6 第 3 章 硬件設(shè)計 .............................................................................................................. 7 控制系統(tǒng)的電路組成 ................................................................................................ 7 電源電路 ................................................................................................................... 7 單片機控制電路 ....................................................................................................... 8 AT89S51 單片機主控系統(tǒng) ............................................................................. 8 單片機的復(fù)位電路 ........................................................................................ 11 單片機的時鐘電路 ........................................................................................12 顯示電路 ........................................................................................................13 蜂鳴器報警電路 ............................................................................................15 電動機的控制電路 ........................................................................................16 進(jìn)水 /排水電路 ..............................................................................................16 帶傳動系統(tǒng) ..............................................................................................................16 波輪式全自動洗衣機基本參數(shù) ....................................................................16 V 帶輪傳動設(shè)計 .............................................................................................16 帶傳動設(shè)計計算 ............................................................................................16 第 4 章 軟件設(shè)計 ...........................................................................................................