【正文】 adopts modular design thought, piled the flowchart of each module. realized to dc motor positive amp。本設(shè)計(jì) 具有靈活方便、適用范圍廣的特點(diǎn)，基本能夠滿足實(shí)踐需求。 本設(shè)計(jì)采用單片機(jī) AT89C51 作為自動(dòng)晾衣架的檢測(cè)及控制核心，采用電阻應(yīng)變片實(shí)現(xiàn)超重檢測(cè)， 通過(guò)手動(dòng)按鍵控制晾衣架的升降，通過(guò)發(fā)光二極管顯示晾衣架的工作狀態(tài)，同時(shí)具有超重聲光報(bào)警作用，該系統(tǒng)還增加了直流電機(jī)的的過(guò)流保護(hù)功能以及電氣隔離功能。自動(dòng)晾衣架控制系統(tǒng)設(shè)計(jì) I 基于 51 單片機(jī) 自動(dòng)晾衣架控制系統(tǒng)設(shè)計(jì) 摘 要 智能自動(dòng)晾衣架能夠?qū)崿F(xiàn)晾衣架的自動(dòng)升降，衣服超重的自動(dòng)檢測(cè)及系統(tǒng)故障保護(hù)等功能。與傳統(tǒng)的手動(dòng)晾衣架相比，自動(dòng)晾衣架具有 升降更省力 ， 升降速度更快 等優(yōu)勢(shì)，隨著技術(shù)的日臻完善，自動(dòng)晾衣架將成為市場(chǎng)的主導(dǎo)產(chǎn)品。 軟件部分采用模塊化設(shè) 計(jì)思想，編制了各個(gè)模塊的流程圖，實(shí)現(xiàn)了對(duì)晾衣架升降控制，狀態(tài)顯示等功能。 自動(dòng)晾衣架控制系統(tǒng)設(shè)計(jì) II AUTOMATIC CLOTHES HANGER CONTROL SYSTEM DESIGN ABSTRACT Intelligent automatic clothes hanger which is able to realize automatic lift the clothes hanger, automatic detection clothes are overweight or not, system39。 reverse control and state display design is agile and convenient, widely use .Basicly can satisfy the practice demands. KEY WORDS clothes hanger singlechip microputer lift control alarm 自動(dòng)晾衣架控制系統(tǒng)設(shè)計(jì) 目 錄 中文摘要 ............................................................................................................................................... I 英文摘要 .............................................................................................................................................. II 1 緒論 ................................................................................................................................................. 1 自動(dòng)晾衣架介紹 .......................................................................................................... 1 晾衣架的歷史及現(xiàn)狀 ................................................................................................ 1 晾衣架行業(yè)的發(fā)展及未來(lái) ..................................................................................... 2 2 整體電路設(shè)計(jì) ............................................................................................................................ 4 自動(dòng)晾衣架整體框圖 ................................................................................................ 4 系統(tǒng)的主要部件方案論證與比較 ..................................................................... 4 處理器的選擇與論證 ........................................................................................... 5 驅(qū)動(dòng)電機(jī)的選擇與論證 ...................................................................................... 5 直流電機(jī)驅(qū)動(dòng)電路的選擇與論證 .................................................................... 5 穩(wěn)壓電源方案選擇與論證 ................................................................................. 6 系統(tǒng)各模塊的最終方案 .......................................................................................... 6 3 基本元器件介紹及各部分電路設(shè)計(jì) ............................................................................ 8 直流電機(jī)的運(yùn)行原理 ................................................................................................ 8 直流電機(jī)的結(jié)構(gòu) .................................................................................................... 8 直流電機(jī)的基本工作原理 ................................................................................. 8 直 流電機(jī)的額定值 ............................................................................................. 10 單片機(jī)原理 ................................................................................................................... 11 單片機(jī)原理概述 .................................................................................................. 11 單片機(jī)的應(yīng)用系統(tǒng) ............................................................................................. 11 AT89C51 簡(jiǎn)介 ....................................................................................................... 13 自動(dòng)晾衣架控制系統(tǒng)設(shè)計(jì) 其它主要器件介紹 ................................................................................................... 17 NE555 介紹 ............................................................................................................ 17 集成運(yùn)放 LM358 介紹 ......................................................................................... 19 繼電器的介紹 ...................................................................................................... 20 光耦介紹 ............................................................................................................... 22 串行下載口介紹 .................................................................................................. 23 各部分電路設(shè)計(jì) ........................................................................................................ 25 電源電路 ............................................................................................................... 25 時(shí)鐘電路 ............................................................................................................... 27 復(fù)位電路 ............................................................................................................... 28 按鍵電路 ............................................................................................................... 29 超重檢測(cè)電路 ...................................................................................................... 29 狀態(tài)指示電路 ...................................................................................................... 30 聲光報(bào)警電路 ...................................................................................................... 31 過(guò)流保護(hù)電路 ...................................................................................................... 32 控制電機(jī)正反轉(zhuǎn)電路 ......................................................................................... 33 串口電路 ............................................................................................................. 34 4 系統(tǒng)的軟件各部分設(shè)計(jì)與實(shí)現(xiàn) .................................................................................... 36 超重檢測(cè)部分 ...........................................................................