单片机电冰箱自动控制系统毕业论文终极

1、本科毕业设计题目家用电冰箱自动控制系统的设计学院工业制造学院专业测控技术与仪器学生姓名学号年级指导教师职称年月日家用电冰箱自动控制系统的设计专业：测控技术与仪器学号：学生：指导老师：摘要：本设计是采用MCS-51系列中的STC89C52单片机作为控制器的核心对电冰箱的工作过程进行控制。该系统的介绍主要分为两部分：系统的硬件结构和软件编程。系统的硬件结构包括：单片机、温度采集电路、除霜电路、键盘/显示电路、执行器、报警器等模块。系统软件包括主程序、中断服务程序和子程序。通过软件程序来控制压缩机及电加热器的通、断，来实现温控目的和自动除霜功能。当电冰箱内温度超限、开门超时等情况出现时，系统自动报警，继电器断开禁止压缩机使用。关键词:电冰箱；单片机；温度采集；除霜；LCD显示温度TheAutomaticControlSystemDesignofHouseholdRefrigeratorSpecialty:MeasurementandControlTechnologyandInstrumentStudentNumber:Student:Supervisor:Abstract:Thisdesi。

2、gnistousetheSTC89C52MCS-51seriessinglechipmicrocomputerasthecoreofthecontrollertocontroltheworkingprocessoftherefrigerator.Introductiontothesystemmainlydividedintotwoparts:thehardwarestructureandsoftwareprogrammingofthesystem.Hardwarestructureofthesysteminclude:singlechipmicrocomputer,temperatureacquisitioncircuit,defrostingcircuit,thekeyboard/displaycircuit,actuators,alarmmodule,etc.Systemsoftwareincludesthemainprogram,interruptserviceprogramandsubroutine.Throughthesoftwareprogramtocontroltheon。

3、compressorandelectricheater,andtorealizethepurposeoftemperaturecontrolandautomaticdefrostfunction.Openedthedoorwhentherefrigeratortemperatureoverrun,timeout,andsoonandsoforth,automaticalarmsystem,therelayisdisconnectedfromthecompressorshallbeforbiddentouse.Keywords:refrigerators;singlechipmicrocomputer;temperatureacquisition;defrost;LCDdisplaytemperature.成都学院学士论文(设计)I目录1绪论....................................................................11.1研究背景.................................................。

4、...........11.2国内外电冰箱控制技术发展现状及趋势..................................11.2.1国内外电冰箱的现状............................................11.2.2国内外电冰箱的发展趋势........................................31.3研究目的与意义......................................................42电冰箱结构及工作原理....................................................52.1电冰箱的分类........................................................52.2电冰箱的型号........................................................52.3电冰箱的结构...............................................。

5、.........62.3.1制冷系统......................................................62.3.2电控系统......................................................62.3.3箱体及附件....................................................72.4电冰箱的工作原理....................................................73总体设计方案............................................................83.1方案对比............................................................83.2总体设计方案........................................................94系统硬件电路设计........................。

6、...............................114.1整机电路...........................................................114.2电源电路...........................................................114.3指示报警电路.......................................................114.4单片机及外围电路...................................................124.4.1温度检测电路.................................................124.4.2DS18B20内部结构与测温原理...................................124.4.3DS18B20操作命令.............................................134.4.4DS18B20的硬件电路.。

7、..........................................134.5键盘电路...........................................................14成都学院学士论文(设计)II4.5.1键盘的工作原理...............................................144.5.2独立键盘.....................................................154.6显示电路...........................................................154.6.1LCD引脚.....................................................154.6.2LCD1602存储的字符...........................................164.6.3LCD1602的控制指令.....................................。

8、......164.7继电器模拟驱动压缩机电路和电热丝除霜电路...........................184.8冷冻室霜厚采集电路.................................................184.8.1霜厚采集电路简介.............................................184.8.2MF53-1简介..................................................194.8.3ADC0832简介.................................................194.8.4LM324简介...................................................214.9过欠压保护电路.....................................................215系统软件设计..................................................。

9、.........235.1系统主程序..........................................................235.2T0中断服务程序.....................................................245.3T1中断服务程序.....................................................245.4INT0中断服务程序...................................................255.5INT1中断服务程序...................................................25结论.....................................................................27附录1整机电路图........................................................28附录2PCB电路图.........。

10、................................................29附录3实物图片..........................................................30附录4程序..............................................................31附录5调试结果..........................................................39参考文献.................................................................40致谢.....................................................................41成都学院学士论文(设计)11绪论1.1研究背景在科技发展如此迅速的今天，人们开始了对家用电冰箱功能的关注，并逐步追求高质量多功能型电器。这促使制冷界的技术开发人员关注起节能减排、节省耗材、制冷系统设计方法现代。