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1、基于单片机的温度控制系统硬件设计【摘要】随着国民经济的发展,温度控制系统已经被广泛的应用于社会生活的各个领域,如工农业、医疗、家庭、远程控制、环境测控等都需要用到温控系统。其中多采用功能强、体积小、可靠性高、造价低的89C51系列单片机进行温度控制。本系统是基于MCS-51单片机的空调压缩机的温度控制系统,采用STC89C51作为温控系统的主控芯片,AD590作为温度传感器,外围采用模/数转换器ADC0809,空调压缩机相应电路来完成温控系统的设计。该系统采用多个AD590温度传感器同时对多点温度采样,再将温度信号转换成数字信号送入单片机,最后将得
2、到的温度的平均温度通过LED显示出来。系统实现了空调压缩机的多点温度采样、温度设定、LED显示及温度门限报警的功能。【关键词】温度控制STC89C51AD590ADC0809多点采样LED显示DesignofTemperatureControlSystemBasedonSCM【Abstract】AlongWiththedevelopmentofthenationaleconomy,temperaturecontrolsystemhasbeenwidelyusedinvariousareasofsociallife,suchasagricultura
3、landindustrial,medical,family,remotecontrol,environmentalcontrol,andsoon.Theyareallrequiringtemperaturecontrolsystem.Wheremaketheuseofstrongfunctions,smallsize,highreliability,lowcostof89C51seriesMCUtemperaturecontrol.ThissystemisbasedonMCSair-conditioningcompressorwithtempera
4、turecontrolsystem,usingSTC89C51asatemperaturecontrolsystemforthemasterchip,theAD590asthetemperaturesensor,theperimeterwithdie/numberconverterADC0809,airconditioningcompressorcorrespondingcircuittocompletetemperaturecontrolsystemdesign.ThesystemusesmultipleAD590temperaturesenso
5、rsatthesametime-to-multipointsampletemperature,temperaturesignalsintodigitalsignalsintoasinglechip,withtheaveragetemperatureoftemperaturethroughtheLEDdisplay.Thesystemenablestheairconditioningcompressortemperaturesampling,temperaturesetting,leddisplayandtemperaturethresholdala
6、rmfunctionality.【Keywords】TemperaturecontrolSTC89C51AD590ADC0809multi-samplingLEDdisplay目录1.绪论.............................................................................................................................61.1课题研究的目的和意义............................................
7、........................................61.2温度控制的国内外现状....................................................................................61.3论文研究的主要内容........................................................................................72.设计方案选择.............................
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