基于ds18b20的智能温度检测系统

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1、电子系统综合设计电子系统综合设计题目基于DS18B20的智能温度检测系统学号姓名所属系机械工程学院专业电子信息工程班级10级电信本一班指导教师摘要-28-电子系统综合设计DS18B20是一种可组网的高精度数字式温度传感器，由于其具有单总线的独特优点，可以使用户轻松地组建起传感器网络，并可使多点温度测量电路变得简单、可靠。本文结合实际使用经验，介绍了DS18B20数字温度传感器在单片机下的硬件连接及软件编程，并给出了软件流程图。在此次设计中，我们采用LED显示温度，实现并焊接制作一个具有多种I/O接口

2、的综合性功能电路，温度的测量值要精确到小数点的后1位，并采用单片机编程的方式使其使用方便、精度高。另外还通过protues软件对设计的数字钟进行了有效的仿真，使得设计的电子产品更具有实用性，该系统可应用于仓库测温、楼宇空调控制和生产过程监控等领域。关键字：温度测量；LED；数字温度传感器；单片机Abstract   Asakindofhigh-accuracydigitalnettemperaturesensor，DS18B20canbeusedbuildingasensorneteasily.It

3、canalsomakethenetsimpleandreliablewithit'sspecial1-wireinterface.ThispaperintroducestheapplicationofDS18B20withsinglechipprocessor.-28-电子系统综合设计Thesystemisconstitutedbytwopartsthetemperaturemeasuredpartanddisplayedpart.ThetemperaturemeasuredparthasaRS23

4、2interface.ItusedAT89C51ofATMELcompanyandDS18B20ofDALLAScompany.ThedisplayedpartusesPC.Thissystemisappliedinsuchdomainsaswarehousedetectingtemperature；air-conditionercontrollingsysteminbuildingandsupervisoryproductiveprocessetc.Keywords：temperaturemeas

5、ure；LED；digitalthermometer；singlechipprocessor目录摘要·········································································2Abstract····································································3-28-电子系统综合设计1绪论····································

6、···································52整体方案设计···························································52.1STC89C51单片机基础·········································52.2DS18B20的基本性质··········································63智能温度检测系统的硬件设计···················

7、······················83.1LED电路·····························································83.2STC89C51单片机电路···············································93.3DS18B20电路·······················································124智能温度检测系统的软件设计············

8、·····························154.1系统软件设计流程图··················································154.2智能温度检测系统的源程序代码·····································17-28-电子系统综合设计4.3只能温度检测系统的原理图··········································245系统硬件仿真·······