资源描述:
《温度传感器毕业设计(论文).doc》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、摘要单片机技术已经普及到我们生活,工作,科研,各个领域,已经成为一种比较成熟的技术,本文将介绍一种基于单片机控制的数字温度器,本温度计属于多功能温度计,可以设置上下报警温度,当温度不在设置范围内时,可以报警。随着现代工农业技术的发展及人们对生活环境要求的提高,人们也迫切需要检测与控制温度。本文通过采用蜂鸣器作为电声元件的温度报警器的设计,阐明了该装置进行设计与制作的具体过程及方法。这种温度报警器结构简单,可操作性强,应用广泛。工作时,温度测量范围为5—38ºC。当前环境温度若超过设定的高温临界温度,由单片机发出
2、报警信号,从而防止带来的不必要的损失。造成高温火灾有:电气线路短路、过载、接触电阻过大等引发高温或火灾;静电产生高温或或火灾;雷电等强电侵入导致高温或火灾;最主要是机房内电脑、空调等用电设备长时间工作,导致设备老化,空调发生故障,而不能降温;因此机房内所属的电子产品发热快,在短时间内机房温度升高超出设备正常温度,导致系统瘫痪或产生火灾,这时温度报警系统就会发挥应有的功能。关键词:STC89C51单片机,数字控制,温度计,DS18B20,AT24C02共页第页ABSTRACTSinglechiptechnolog
3、yhasspreadtowelive,work,scientificresearch,eachdomain,hasbecomeamaturetechnology,thispaperintroducesakindofbasedonsinglechipmicrocomputercontroldigitaltemperaturedevice,thethermometerbelongstothemulti-functionthermometer,cansetupanddownthetemperaturealarm,wh
4、enthetemperatureisnotsetrange,youcancallthepolice.Withmodernindustrialandagriculturaltechnologyandthedevelopmentofpeopletotheimprovementofthelivingenvironmentrequirements,andpeopleurgentlyneedtotestandcontrolthetemperature.Throughtheuseofcomponentsofthebuzze
5、rasacoustictemperaturealarmdesign,itisexpoundedthatthedeviceforthedesignandproductionofthespecificprocessesandmethods.Thetemperaturealarmsimplestructure,themaneuverabilityisstrong,wideapplication.Work,temperaturemeasurementrangefor5-38ºC.Thecurrentenvironmen
6、ttemperatureifmorethanthehightemperatureofsettingthecriticaltemperature,issuedawarningsignalbysingle-chipmicrocomputer,thuspreventingbringunnecessarylosses.Hightemperaturecausedbyfireare:electricshortcircuit,overload,contactresistancebytoohightemperatureorfi
7、re;Electrostaticgenerationhightemperatureororfire;Lightningandleadtohightemperaturesorhighvoltageintothefire;Themainroomisinairconditioningequipmentsuchascomputer,electricityworklonghours,causeofoldequipment,airconditioningfault,andcan'tcooling;Sothetelecomr
8、oombelongstoelectronicproductsfeverfast,inashorttime,computerroomtemperaturebeyondnormaltemperatureequipment,causethesystemtoproduceparalysisorfire,whentemperaturealarmsystemwillplayitsfunction.