基于单片机的数字温度计设计毕业论

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1、基于单片机的数字温度计设计摘要本设计是一种基于AT89C51单片机的温度测量及报警系统,该系统采用DS18B20作为温度采集、监测元件，将采集到的信号送到单片机进行处理，判断是否报警，再将数据送到数码管显示出来，该设计可以设置温度报警上下限。文中介绍了集成温度传感器DS18B20的原理，AT89C51单片机的功能和应用，着重给出了软硬件系统的各部分电路。该系统具有功能强大、结构简单和体积小等优点。关键词：单片机、温度计、DS18B20、AT89C51IAbstractThisdesignisbasedontheAT89C51single-chi

2、ptemperaturemeasurementandalarmsystem,thesystemusesDS18B20asthetemperatureacquisition,monitoringdevice,thecollectedsignalissenttothesinglechipprocessor,judgingwhetheranalarm,andthenthedataissenttothedigitaltubedisplay,thisdesigncanbearbitrarilysettemperaturealarmlimits.Thisp

3、aperintroducestheprincipleofDS18B20integratedtemperaturesensor,AT89C51MCUfunctionandapplication,especiallygiventhehardwareandsoftwaresystemofeachpartofcircuit.Thesystemhastheadvantagesofnovel,powerful,simplestructureandsmallvolumeetc..Keywords：Singlechipmicrocomputer,thermom

4、eter,DS18B20,AT89C51II目录第1章绪论....................................................................................................11.1研究意义及背景.......................................................................................11.2设计目的........................................

5、...........................................................11.3主要工作...................................................................................................1第2章系统概述..............................................................................................22.1系统方

6、案...................................................................................................22.2系统组成...................................................................................................2第3章系统硬件设计..........................................................

7、............................33.1AT89C51单片机的介绍...........................................................................33.2数码管显示...............................................................................................43.3DS18B20介绍......................................

8、.....................................................43.4系统工作原理............