毕业论文设计基于单片机温度控制系统的设计中文摘要随着微机测量和控制技术的迅速发展与广泛应用，以单片机为核心的温度采集与控制系统的研发与应用在很大程度上提高了生产生活中对温度的控制水平。本设计论述了一种以STC89C52单片机为主控制单元，以DS18B20为温度传感器的温度控制系统。该控制系统可以实时存储相关的温度数据并记录当前的时间。系统设计了相关的硬件电路和相关应用程序。硬件电路主要包括STC89C52单片机最小系统，测温电路、实时时钟电路、LCD液晶显示电路以及通讯模块电路等。系统程序主要包括主程序，读出温度子程序，计算温度子程序、按键处理程序、LCD显示程序以及数据存储程序等。[关键词]STC89C52单片机；DS18B20；显示电路第1页共46页毕业论文设计BasedonsinglechipmicrocomputertemperaturecontrolsystemdesignAbstractAlongwiththecomputermeasurementandcontroltechnologyoftherapiddevelopmentandwideapplication,basedonsinglechiptemperaturegatheringandcontrolsystemdevelopmentandapplicationgreatlyimprovetheproductionoftemperatureinlifelevelofcontrol.ThisdesignSTC89C52describesakindofmainlybyMCUcontrolunit,fortemperaturesensorDS18B20temperaturecontrolsystem.Thecontrolsystemcanreal-timestoragetemperaturedataandrecordrelatedtothecurrenttime.Systemdesignrelatedhardwarecircuitandrelatedapplications.STC89C52microcontrollerhardwarecircuitincludetemperaturedetectioncircuitsmallestsystem,andreal-timeclockcircuit,LCDdisplaycircuit,communicationmodulecircuit,etc.Systemprogrammingmainlyincludemainprogram,readtemperaturesubroutine,thecalculationoftemperaturesubroutines,keyprocessingprocedures,LCDdisplayproceduresanddatastorageprocedures,etc.[Keywords]STC89C52microcontroller；DS18B20；displaycircuit第2页共46页毕业论文设计目录一、引言...............................................................................4(一)课题研究的背景.................................................................4(二)课题研究的目的和意义...........................................................5二、硬件电路的设计.....................................................................5(一)系统设计的框架.................................................................5(二)单片机最小系统电路.............................................................6(三)单片机的选型...................................................................61.STC89C52单片机简介...........................................................62.STC89C52单片机时序...........................................................73.STC89C52单片机引脚介绍.......................................................7(四)温度传感器电路.................................................................9(五)系统电源电路的设计............................................................10(六)LCD显示电路...................................................................11(七)串口通讯电路..................................................................12(八)按键接口电路..................................................................13(九)DS1302时钟电路................................................................13(十)存储器接口电路................................................................13三、系统软件设计......................................................................14(一)计算温度子程序................................................................15(二)按键处理子程序................................................................15(三)计算温度子程序.....................................
