沈阳理工大学应用技术学院毕业设计（论文）题目：基于单片机的电子温度计的设计系别：信息与控制学院专业：电子信息工程学生姓名：崔鸿鹏指导教师：唐朝仁2011年6月15日摘要在我的论文中，是以AT89C51单片机为核心的，对温度的检测与显示进行了简单的设计与阐述。本次设计可以说是软硬结合，又以硬件为主。电子温度计温度采集系统由主控制器、温度采集电路、温度显示电路、报警控制电路及键盘输入控制电路组成。它利用单片机AT89C51做控制及数据处理器、智能温度传感器DS18B20做温度检测器、LED数码显示管做温度显示输出设备。硬件电路比较简单，成本较低，测温范围大，测量精度高，读数显示直观，使用方便。关键词：数字；温度；传感器；单片机；控制AbstractisbasedonAT89C51microcontrollerasthecore,thetemperaturedetectionanddisplayforasimpledesignandelaborate.Thisdesigncanbesaidtocombinesoftandhardon,hehardwarebased.thedigitalmulti-channeltemperaturegatheringsystembythemastercontrolregulator,thetemperaturegatheringelectriccircuit,thetemperaturedisplaycircuit,reportstothepolicethecontrolcircuitandthekeyboardentrycontrolcircuitiscomposed.Itmakesthecontrolandthedataprocessor,intelligenttemperaturesensorDS18B20usingmonolithicintegratedcircuitAT89C51makesthetemperaturedetector,theLEDnumericalcodedisplaytubemakesthetemperaturedemonstrationoutputunit.Thehardwareelectriccircuitquiteissimple,thecostislow,thetemperaturemeasurementscopeisbig,andthemeasuringaccuracyishigh,readingdemonstrationisdirect-viewing,easytooperate.Keywords:numeral;temperature;sensor;monolithicintegratedcircuit;control目录绪论...........................................................................................................................................11一线总线介绍..........................................................................................................................41.1一线总线器件工作原理...............................................................................................41.1.1一线总线技术简介...................................................................................................41.1.2一线总线工作原理...................................................................................................51.2总线协议简介..............................................................................................................52电子式温度采集系统硬件电路设计.....................................................................................82.1方案选择......................................................................................................................82.1.1传感器部分.......................................................................................................82.1.2主控制部分.......................................................................................................92.1.3系统方案...........................................................................................................92.2温度采集电路设计....................................................................................................102.2.1DS18B29简介..............................................................................................................102.2.2温度采集电路结构.....................................................................................................132.3单片机控制电路设计.................................................................................................142.3.1单片...
