【正文】 學(xué)生姓名 專業(yè)班級(jí) 學(xué) 號(hào) 所 在 系 指導(dǎo)教師 完成時(shí)間 2021 年 4 月 1 日 智能溫控風(fēng)扇的設(shè)計(jì) II 智能溫控風(fēng)扇的設(shè)計(jì) 摘 要 基于檢測(cè)技術(shù)和單片機(jī)控制技術(shù)，設(shè)計(jì)了一種智能溫控調(diào)速風(fēng)扇?？梢栽O(shè)置所需的溫度，并同時(shí)顯示所設(shè)定的溫度，同時(shí)按加減鍵退出設(shè)定功能。 關(guān)鍵詞 AT89C52/溫度傳感器 /直流電機(jī) /模擬風(fēng)扇 智能溫控風(fēng)扇的設(shè)計(jì) III Esign of intelligent temperature control fan ABSTRACT Based detection and singlechip control technology, the design of a smart temperature control fan speed. Explains smart temperature control fan speed control works, hardware design, software implementation process. System is simple, stable, low cost, has a certain energysaving effect. Controlled by the microcontroller to achieve a fan of our main functions: When you press the key to open the system initialize the default set temperature is 25 degrees, if the outside temperature is above the set temperature for fan operation, if the outside temperature is high below the set temperature in the wind does not turn the page, displaying the outside temperature. You can set the desired temperature, and also shows the set temperature, press the plus or minus key to exit the setting mode. Automatic fan control, so fans of the home appliances bee more intelligent. Unable to overe the ordinary fan speed automatically adjusted according to outside temperature difficult. Smart fan design has important practical significance. KEY WORDS AT89C52, temperature sensor, . electric machine， Simulation of fan. 智能溫控風(fēng)扇的設(shè)計(jì) 目 錄 中文摘要 .......................................................................................................Ⅰ 英文摘要 .......................................................................................................Ⅱ 1 緒論 ......................................................................................................3 引言 ...............................................................................................3 發(fā)展現(xiàn)狀與應(yīng)用領(lǐng)域 ....................................................................3 2 整體方案的設(shè)計(jì) ...................................................................................5 系統(tǒng)整體設(shè)計(jì) ................................................................................5 方案論證 .......................................................................................5 溫度 傳感器的選擇方案 ................................................................5 控制核心的選擇 ............................................................................6 顯示電路的選擇 ............................................................................7 調(diào)速方式的選擇 ............................................................................7 控制執(zhí)行部件的選擇 ....................................................................8 3 主要原件的介紹 ...................................................................................9 溫度傳感器 ....................................................................................9 溫度傳感器的種類和選擇 ........................................................................... 9 DS18B20 的工作原理及其單片機(jī)的接口電路 .......................................... 9 單片機(jī) ......................................................................................... 11 單片機(jī)的種類及選擇 ................................................................................. 11 AT89C52 單片機(jī)簡介 ............................................................................... 13 AT89C52 的性能特點(diǎn)和芯片引腳圖 .......................................................... 15 直流電機(jī) ..................................................................................... 16 4 硬件設(shè)計(jì) ............................................................................................. 19 開關(guān)復(fù)位電路 .............................................................................. 19 數(shù)碼管顯示電路 .......................................................................... 19 溫度采集電路 .............................................................................. 20 風(fēng)扇電機(jī)驅(qū)動(dòng)與調(diào)速電路 .......................................................... 21 5 軟件設(shè)計(jì) ............................................................................................. 23 6 系統(tǒng)調(diào)試 ............................................................................................. 25 系統(tǒng)存在的不足及展望 .............................................................. 25 調(diào)試過程中遇到的故障及 解決方法 ........................................... 25 結(jié)束語 ...................................................................................................... 26 致 謝 ...................................................................................................... 27 智能溫控風(fēng)扇的設(shè)計(jì) 參考文獻(xiàn) .................................................................................................. 28 附 錄 1：電路總圖 ................................................................................ 29 附 錄 2：實(shí)物圖 .................................................................................... 30 附 錄 3：源程序 .................................................................................... 31 附 錄 4：溫控風(fēng)扇清單 ........................................................................ 35 智能溫控風(fēng)扇的設(shè)計(jì) 3 1 緒論 引言 生活中，我們經(jīng)常會(huì)使用一些與溫度有關(guān)的設(shè)備。要使電子 產(chǎn)品保持較低的溫度，必須用大功率、高轉(zhuǎn)速、大風(fēng)量的風(fēng)扇，而風(fēng)扇的噪音與其功率成正比。 發(fā)展現(xiàn)狀與應(yīng)用領(lǐng)域 當(dāng)今社會(huì)已經(jīng)完全進(jìn)入了電子信息化， 溫度 控制器在各行各業(yè)中已經(jīng)得到了充分的利用?，F(xiàn)階段運(yùn)用與國內(nèi)大部分家庭，系統(tǒng)效率越來越高，成本也越來越低。 智能溫控風(fēng)扇的設(shè)計(jì) 5 2 整體方案的設(shè)計(jì) 系統(tǒng)整體設(shè)計(jì) 本設(shè)計(jì)的整體思路是：利用溫度傳感器 DS18B20 檢測(cè)環(huán)境溫度并直接輸出數(shù)字溫度信號(hào)給單片機(jī) AT89C52 進(jìn)行處理，在 LED 數(shù)碼