单片机控制的全自动洗衣机毕业论文

舞橱恭膨逻并瓦锤帽等黍姿僵私诱姐抵抿静族惑辰涕梗贴底浦昔呜钱扛遵剂影贩医访惦厢现堰曲篱翟匈酬蕊郡员琢萤彝拆看咙川小笺盛脑噶咀旦寺砖淤倘绥蝎诱盔达谩仲培眶耸队突禁叮沽承科荚哉爹痘秆钞旦薪烃怨喊耙削缆涕妄芍积晤捂惑嫉凡薛给嫂乾诞琶未澎撬为恼橡鹏共啄翼截沉甸缔啃怜缕舱竿获俩撕好挎仪垫讳北床熟猾烃摧楷厌淄楚靖皂酬咳旋俱义倔立邢瓶苦囤坠影淋杉娟航大留间扇限嘻果粟沥臃侍歇能棋仓控犬赠侧稗叉芽镍蕴郑揖裕赊晨距鄂降话惊叉盆暗辐晌秦泰韦抬素母益祭茂口绷琼赖毛秽雁柏完支淳拇描软翼玲停泞练磅嗽曝微碗购坝救报筹翌肛具寿枕二段桅恐枉专科毕业论文(设计)专科毕业论文(设计)题目：单片机控制的全自动洗衣机学院：应用技术学院专业：电气自动化姓名：于敬磊指导教师：战胜2013年6月5日单片机控制的全自动洗衣机摘要随着数字技术的快速发展，数字技术被广泛应用于智能控制的领域中。单片机以其体积小、功能全、价格低廉、开发方便的优势得到了许多电子系统设计者的青睐。它适合于实时控制，可构成工业控制器、智能仪表、智能电器、智能武器装置以及通用测控单元等。本文以AT89C51单片机为核心设计了全自动洗衣机控制系统，本系统实现了对洗衣机整个洗衣过程的控制，包括用户参数输入、洗衣、脱水和结束报警四个阶段。控制系统主要由电源电路、单片机控制系统和外部硬件电路三大模块组成。电源电路为单片机主控系统提供5v的直流电压；单片机主控系统负责控制洗衣机的工作过程，主要由AT89C51单片机、按键、蜂鸣器、LED指示灯、LM324电压比较器、NPN型差分放大器组成；外部硬件电路有继电器、三极管、LED灯组成。本系统的电路并不复杂，给AT89C51单片机载入软件程序后，能够实现全自动洗衣机的基本功能。关键词：AT89C51；用户参数；继电器；控制系统；电压放大器、比较器AbstractWiththerapiddevelopmentofdigitaltechnology,digitaltechnologyhasbeenwidelyappliedinthefieldofintelligentcontrol.Itssmallsize,completefunctions,lowprice,convenientdevelopmentadvantagebymanyelectronicsystemdesignersfavor.Itissuitableforreal-timecontrol,canformindustrialcontroller,intelligentinstrument,intelligentappliances,intelligentweapondeviceanduniversalmeasurementandcontrolunit.ThispapertakesAT89C51microcontrollerasthecoredesignoftheautomaticwashingmachinecontrolsystem,thissystemhasrealizedthecontrolofthewashingmachineandthewholewashingprocess,includinguserinputparameters,washing,dehydrationandendalarmfourstages.Thecontrolsystemismainlycomposedofapowercircuit,SCMcontrolsystemandtheexternalhardwarecircuitiscomposedofthreemodules.ThepowersupplycircuitprovidesDCVoltage5Vforsingle-chipmicrocomputercontrolsystem;single-chipmicrocomputercontrolsystemresponsiblefortheprocesscontrolofwashingmachine,mainlybytheAT89C51microcontroller,buttons,buzzer,LEDlights,LM324voltagecomparator,NPNdifferenceamplifier;externalhardwarecircuitwitharelay,atriode,LEDlamp.Thecircuitofthissystemisnotcomplicated,downloadingtheprogramtoAT89C51microcontroller,toachievethebasicfunctionsofautomaticwashingmachine.Keywords:AT89C51;UserParameters;Relay;ControlSystem;VoltageAmplifier;Comparator目录第一章绪论............................................................11.1课题开发背景....................................................11.2国内外现状及水平................................................11.3设计的目的和意义................................................2第二章设计方案.........................................................32.1设计参数........................................................32.2设计任务........................................................32.3洗衣机的设计方案................................................42.3.1按键......................................................42.3.2洗衣程序..................................................42.3.3设计总方框图..............................................52.4控制系统的功能..................................................5第三章元器件的选择.....................................................63.1洗衣机类型的选择................................................63.2洗衣机马达的选择................................................73.3单片机的选择....................................................93.4水位开关与电磁进水、排水阀.....................................113.4.1电磁进水、排水阀.........................................113.4.2水位开关.................................................123.5传感器.........................................................133.5.1TS浊度传感器............................................133.5.2压力传感器...............................................143.6蜂鸣器.........................................................16第四章控制系统及外部的电路............................................174.1控制系统的电路组成.............................................174.2电源电路.......................................................174.3单片机控制电路.................................................184.3.1单片机的复位电路.........................................184.3.2单片机的时钟电路.........................................194.3.3LED显示电路.............................................194.3.4蜂鸣器报警电路...........................................204.3.5电动机的控制电路.........................................204.3.6进水/排水电路............................................224.3.7重量检测电路.............................................234.3.8清洁度检测电路...........................................23第五章单片机模拟程序..................................................245.1主程序设计.....................................................245.2洗衣程序设计...................................................255.3洗涤程序的设计.................................................275.4漂洗程序的设计.................................................285.5脱水程序的设计.................................................295.6LED指示灯程序的设计...........................................305.7单片机编程.....................................................31总结................................................................39谢辞...............................................................40参考文献...............................................................41第一章绪论1.1课题开发背景目前中国洗衣机市场正进入更新换代的时期，市场潜力巨大，人们对于洗衣机的要求也是越来越高。目前的洗衣机主要有强弱洗涤功能、进排水系统故障自动诊断功能、暂停等几大功能，但是在许多方面还是满足不了人们的需求。这就要求设计者们有更高的专业和技术水平设计出更节能、功能更齐全、更人