物流专业英语教程（第4版） 课件 Unit 20-A The Internet of Things.pptx

物流专业英语教程

（第4版）;PassageA;;DefinitionofIOT;DefinitionofIOT;“InternetofThings”iscomposedoftwoterms.Thefirstoneaimstopromoteanetwork-orientedvisionofIoT,whilethesecondonemovesthefocusongeneric“objects”tobeintegratedintoacommonframework.

Thewords“Internet”and“Things”,whenputtogether,assumeameaningwhichintroducesadisruptivelevelofinnovationintotoday’sworld.

Theobjectuniqueaddressingandtherepresentationandstoringoftheexchangedinformationbecomethemostchallengingissues,bringingdirectlytoathird,“semanticoriented”,perspectiveofIoT.;OneParadigm,ManyVisions;EnablingTechnologies;EnablingTechnologies;1.Thebasicideaofthisconceptisthepervasivepresencearoundusofavarietyofthingsorobjects—suchasRadio-FrequencyIDentification(RFID)tags,sensors,actuators,mobilephones,etc.—which,throughuniqueaddressingschemes,areabletointeractwitheachotherandcooperatewiththeirneighborstoreachcommongoals.;2.Bybrowsingtheliterature,aninterestedreadermightexperiencearealdifficultyinunderstandingwhatIoTreallymeans,whichbasicideasstandbehindthisconcept,andwhichsocial,economicalandtechnicalimplicationsthefulldeploymentofIoTwillhave.;3.SensingRFIDsystemswillallowtobuildRFIDsensornetworks,whichconsistofsmall,RFID-basedsensingandcomputingdevices,andRFIDreaders,whicharethesinksofthedatageneratedbythesensingRFIDtagsandprovidethepowerforthenetworkoperation.;4.Itsfeatureofhidingthedetailsofdifferenttechnologiesisfundamentaltoexempttheprogrammerfromissuesthatarenotdirectlypertinenttoher/hisfocus,whichisthedevelopmentofthespecificapplicationenabledbytheIoTinfrastructures.;5.Accordingly,unlessadeviceoffersdiscoverablewebservicesonanIPnetwork,thereistheneedtointroduceawrappinglayer,consistingoftwomainsub-layers:theinterfaceandthecomm