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1、學士學位論文題目： 溫度數(shù)據(jù)無線傳輸系統(tǒng)學院：專業(yè)：班級：學號：學生姓名：指導教師：起訖日期：溫度數(shù)據(jù)無線傳輸系統(tǒng)摘要人們生產(chǎn)生活需要知道溫度，工業(yè)生產(chǎn)需要知道溫度控制溫度。為了生產(chǎn)生活的需要，我們要有一套及時、方便、有效、快捷的傳輸溫度量的系統(tǒng)。本系統(tǒng)主要有兩個模塊，一個溫度采集發(fā)送模塊和一個溫度數(shù)據(jù)接收模塊。在溫度采集模塊通過溫度傳感器DS18B20采集溫度數(shù)據(jù)，這種傳感器可將模擬的溫度量轉(zhuǎn)換成數(shù)字量通過IIC總線將數(shù)據(jù)傳送到單片機，單片機采用LM3S1138芯片，這個芯片具有很快的處理速度，有單獨的休眠模塊，通過軟件使其進入休眠非常省電。然后將溫度數(shù)據(jù)送到無線發(fā)射模塊，我
2、采用的無線發(fā)射是工業(yè)通用的nRF905無線收發(fā)模塊，將數(shù)據(jù)送到無線發(fā)射模塊中，發(fā)射模塊會自動將數(shù)據(jù)打包，最后將數(shù)據(jù)發(fā)送。數(shù)據(jù)接收模塊中無線接收模塊每隔650us掃描一次，當有同頻率的信號過來時就開始接收數(shù)據(jù)包，將接收到的數(shù)據(jù)包解壓，將數(shù)據(jù)送到單片機，然后單片機將數(shù)據(jù)送到上位機，上位機既可以處理數(shù)據(jù)。該設計可以使溫度數(shù)據(jù)及時的監(jiān)控，通過無線傳輸不用布線。并且可以方便的在上位機處理數(shù)據(jù)。關(guān)鍵詞：DS18B20，LM3S1138，nRF905，溫度采集，無線傳輸。TemperaturedatawirelesstransmissionsystemAbstractPeopleneedtok
3、nowproductionandlifeoftemperature,theindustrialproductionneedtoknowthetemperatureandcontroltemperature.Inordertotheneedsofproductionandlife,wewanttohaveatimely,convenient,efficient,quicktransmissiontemperatureamountofsystem.Systemtherearetwomainmodules,atemperaturegatheringsendmoduleandatempe
4、raturedatareceivingmodule.IntemperatureacquisitionmodulethroughthetemperaturesensorDS18B20collectiontemperaturedata,thesensorcanbesimulatedtemperatureisconvertedintodigitalquantitythroughtheIICtrunktosenddatatoasingle-chipmicrocomputer,thesinglechipmicrocomputerLM3S1138chip,thechiphasquicklyp
5、rocessingspeed,hasaseparatedormancymodule,throughthesoftwaremakeitintothedormancyveryprovinceelectricity.Thenwillthetemperaturedatasenttowirelesstransmittingmodule,IusewirelesslaunchisthenRF905industrialgeneralwirelesstransceivermodule,thedatasenttowirelesstransmittingmodules,launchmoduleauto
6、maticallywilldatapacking,finallywillsenddata.Datareceivingmodulewirelessreceivingmodulesinevery650usscanningtime,whenthefrequencyofthesignalwithcamethroughtoreceivedatapackets,willreceivethepacketdecompression,datatothesinglechipmicrocomputer,andthenthedatasenttothesinglechipmicrocomputeruppe
7、rmachine,PCcanprocessingdata.Thisdesigncanmakethetemperaturedatatimelymonitoring,throughthewirelesstransmissionneednotwiring.Andcanbeconvenientinuppermachineprocessingdata.KEY:DS18B20,LM3S1138,nRF905,Temperaturegathering,Wirelesstransmission目
