【正文】 的智能豆?jié){機(jī)系統(tǒng)由 MCS51 系列單片機(jī)、溫度傳感器、加熱電路、防溢電路、打漿電路、報(bào)警電路等組成，豆?jié){生產(chǎn)完全自動(dòng)化。 Abstract Thesis: most of the current popular microputer intelligent control of soybean milk, soybean milk as long as the start, beating, boiling syrup fully auto mated of, just ten minutes to automatically make soy milk, hygienic and reliable, and convenient. This article describes the system consists of Intelligent Soymilk MCS51 series microcontroller, temperature sensor, heating circuit, antioverflow circuit, beating circuits, alarm circuits and other ponents, milk production and fully automated. In view of its development process and historical background on DouJiangJi shortings and desirable place a detailed analysis. And from two aspects of hardware and software to analyze and design improvement, and through the proe draw the parts drawing and the whole assembly drawing. The anticipated results have finished Keywords: MCS51， soybean， milk machine， Appearance figure， software， hardwareIV 目錄 摘要 ............................................................................................................... II Abstract ........................................................................................................ III 目錄 .............................................................................................................. IV 1 緒論 ........................................................................................................ 2 豆?jié){機(jī)的歷史和現(xiàn)狀 ......................................................................... 2 豆?jié){機(jī)基本功能 .......................................................................... 5 豆?jié){機(jī)總體設(shè)計(jì)方案 ..................................................................... 6 基本原理 ..................................................................................... 6 總體方案設(shè)計(jì) .................................................................................. 8 3 豆?jié){機(jī)的外形結(jié)構(gòu)設(shè)計(jì) ..................................................................... 11 豆?jié){機(jī)的基本結(jié)構(gòu) ....................................................................... 11 杯體設(shè)計(jì) ....................................................................................... 11 機(jī)頭 ............................................................................................... 11 底座設(shè)計(jì) ....................................................................................... 12 小電機(jī)的選擇電機(jī) ....................................................................... 13 刀片 ............................................................................................... 13 網(wǎng)罩 ............................................................................................... 14 4 豆?jié){機(jī)控制系統(tǒng)的硬件設(shè)計(jì) ............................................................. 15 電源電路設(shè)計(jì) .............................................................................. 15 電源的作用 ............................................................................ 15 電源的組成 ............................................................................ 15 電源工作原理 ........................................................................ 16 橋式整流電路簡介 ................................................................ 17 穩(wěn)壓器的選用 ........................................................................ 18 穩(wěn)壓器簡介 ............................................................................ 19 單片機(jī)全自動(dòng)豆?jié){機(jī)的設(shè)計(jì) 單片機(jī)的選用及簡介 .................................................................. 21 單片機(jī)的選用 ......................................................................... 21 單片機(jī)的簡介 ........................................................................ 21 溫度檢測電路的設(shè)計(jì) .................................................................. 25 NTC 熱敏電阻溫度傳感器簡介 ............................................ 25 ADC0809 簡介 ........................................................................ 29 放大器 LM324 簡介 ............................................................... 33 四分頻電路設(shè)計(jì) .................................................................... 35 NTC 熱敏電阻與單片機(jī) AT89C51 的接口設(shè)計(jì) .................. 36 加熱及打漿電路的設(shè)計(jì) .............................................................. 37 防干燒及防溢出電路的設(shè)計(jì) ....................................................... 39 報(bào)警電路的設(shè)計(jì) .......................................................................... 40 復(fù)位電路的設(shè)計(jì) .......................................................................... 41 時(shí)鐘電路及按鍵設(shè)計(jì) .................................................................. 41 5 豆?jié){機(jī)控制系統(tǒng)的軟件設(shè)計(jì) .............................................................. 43 豆?jié){機(jī)控制系統(tǒng)的流程圖的設(shè)計(jì) .................................................. 43 結(jié)論 ......................................................................................................... 46 致謝 ......................................................................................................... 48 參考文獻(xiàn) ................................................................................................. 49 附錄 A 豆?jié){機(jī)控制系統(tǒng)硬件圖 ............................................................ 52 附錄 B 豆?jié){機(jī)控制系統(tǒng)程序清單 ........................................................ 53 1 前言 豆?jié){是一種老幼皆宜、價(jià)廉質(zhì)優(yōu)的液態(tài)營養(yǎng)品，它所含的鐵元素是牛奶的 6 倍，所含的蛋白質(zhì)雖不如牛奶高，但在人體內(nèi)的吸收率可達(dá)到 85%，因此有人稱豆?jié){為 “植物牛奶 ”。 單片機(jī)全自動(dòng)豆?jié){機(jī)的設(shè)計(jì) 2 1 緒論 1995 年北京電視臺(tái)的電視購物欄目就出現(xiàn)了豆?jié){機(jī)的身影，但由于眾多技術(shù)難題當(dāng)時(shí)沒有被攻克，豆?jié){機(jī)市場并未如愿發(fā)展起來。 ‘盆畝舀奮二奮奮‘二二畝 .‘扁扁 現(xiàn)在，很多家庭使用的全自動(dòng)豆?jié){機(jī)，是用微電腦控制，集水位檢測、粉碎、過濾、防溢、報(bào)警等功能為一體，實(shí)現(xiàn)制漿自動(dòng)化。因此，作為一個(gè)產(chǎn)品的創(chuàng)新，豆?jié){機(jī)市場還有一個(gè)培育和引導(dǎo)發(fā)展的問題。 本課題的來源是九陽電器有限公司，通過分析公司的市場調(diào)查報(bào)告，找出目 前豆?jié){機(jī)產(chǎn)品存在的缺陷，適應(yīng)消費(fèi)者對豆?jié){營養(yǎng)的需求而開發(fā)出新型號(hào) QYYXZ 系列的豆?jié){機(jī)，既全營養(yǎng)旋轉(zhuǎn)系列，希望新產(chǎn)品投入市場，能為公司帶來新的利潤增長點(diǎn)。本文分析了豆?jié){機(jī) 所處的生命周期階段，對豆?jié){機(jī)的粉碎刀、濾網(wǎng)、熬煮方法等進(jìn)行了改進(jìn)，在打磨刀和杯體的創(chuàng)新設(shè)計(jì)過程中，使用的是Pro/E 軟件，該軟件在工程制圖中有著比 AUTOCAD/CAI 等軟件不可替代