基于单片机的微波炉控制系统设计

本科毕业设计（论文）题目：基于高性能单片机的微波炉控制系统设计GraduationDesign(Thesis)DesignofMicrowaveOvenControlSystemBasedonHigh-performanceMCUBySupervisedbySchoolofAutomationNanjingInstituteofTechnologyJune,2012南京工程学院自动化学院本科毕业设计（论文）摘要近年来随着计算机在社会领域的渗透和大规模集成电路的发展，单片机的应用正在不断地走向深入，由于它具有功能强，体积小，功耗低，价格便宜，工作可靠，使用方便等特点，因此特别适合于与控制有关的系统，越来越广泛地应用于自动控制，智能化仪器，仪表，数据采集，军工产品以及家用电器等各个领域，单片机往往是作为一个核心部件来使用，再根据具体硬件结构，以及针对具体应用对象特点的软件结合，以作完善。微波炉控制系统设计采以微控制器（MCU）为核心，基于MCU编制软件系统，结合8位数码管（LED）显示以及必要的外围电路，完成微波炉的可编程智能控制。系统由计时控制、火力设定、用户界面、音响发生几大模块组成。能够根据键盘输入完成相应的功能，同时使用LED显示系统状态,并进行响铃提示。关键词：微控制器；微波炉；控制器南京工程学院自动化学院本科毕业设计（论文）ABSTRACTWiththecomputerpenetrationinthesocialsphereinrecentyears,andthedevelopmentoflargescaleintegratedcircuits,microcontrollerapplicationsarecontinuallydevelopingdeeply,becauseofitspowerfulfunction,smallsize,lowpowerconsumption,cheapprice,reliableperformance,easilyusing,etc,itisparticularlysuitableforsystemswithcontrol.Itisusedmoreandmorewidelyinautomaticcontrol,intelligentinstruments,meters,dataacquisition,militaryproductsandhomeappliancesetc,SCMisoftenusedasacorecomponentinaccordingtothespecifichardwarearchitecture,anditisoftencombinedwithapplication-specificfeaturesofthesoftwareobjectstomakeperfect.Microwaveovencontrolsystemdesignusedthemicrocontrollerasthecore,basedonMCUpreparationsoftwaresystem,combinedwitheightdigitaltube(LED)displayandnecessaryperipheralcircuitstocompletethemicrowaveovenprogrammableintelligentcontrol.Systemconsistedofseveralmodulessuchasthetimecontrolling,firesetting,theuserinterface,sounddesign.Itcouldcompletethefunctionunderthekeyboard,meanwhileusedtheLEDtodisplaythestatusofsystem,andpromptedusthrougharinger.Keywords：microcontroller;microwaveoven;controller南京工程学院自动化学院本科毕业设计（论文）目录第一章绪论....................................................................................................................11.1引言........................................................................................................................11.2课题背景................................................................................................................11.3课题研究来源........................................................................................................21.4本文主要研究工作................................................................................................31.5本文结构................................................................................................................3第二章控制系统总述..................................................................................................52.1工作原理................................................................................................................52.1.1系统框图.............................................................................................................52.1.2系统功能实现.....................................................................................................52.2控制电路设计........................................................................................................62.3软件设计................................................................................................................72.4本章小结................................................................................................................8第三章各模块设计方案...........................................................................................103.1档位输出方案..........................................................................................................103.2计时控制方案..........................................................................................................103.3键盘设计方案..........................................................................................................113.4显示设计方案..........................................................................................................113.5火力输出方案..........................................................................................................123.5.1微波炉火力输出原理.......................................................................................123.5.1微波炉火力输出方案.......................................................................................123.5响铃提示方案..........................................................................................................123.6本章小结..................................................................................................................12第四章硬件设计.........................................................................................................144.1系统核心AT89C51介绍........................................................................................144.1.1AT89C51主要性能............................................................................................144.1.2AT89C51的引脚及功能....................................................................................144.1.3AT89C51单片机的内置功能............................................................................164.2时钟电路设计......................................................................................................