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1、附录AEmbeddedLinux-basedacquisitionsystemWiththerapiddevelopmentofinformationtechnology,peopleneedtoaccurate,fastandconvenientaccesstolargeamountsofdataandbeabletoquicklyextractusefulinformation.EmbeddedSystemsistheITnetworktechnologyandanewdirectionoftec
2、hnologydevelopment.AmericanfuturistTimorpredictedduringhisvisittoChinain1999:4~5yearsafterthetoolwillbeembeddedPCandtheInternetisthesecondgreatestinventionafter.20thcentury90's,theapplicationofembeddedtechnologyinfullswing,hasbecomethecommunicationsandc
3、onsumertechnologyproducts,themainplatform.Inthefieldofautomaticcontrol,notonlycanbeusedinATMmachines,vendingmachines,industrialcontrolandotherspecialequipmentandmobilecommunicationsequipment,GPS,acombinationofentertainment,embeddedsystemsplayahugerolein
4、thesame.Thedevelopmentofembeddedtechnologymakesiteasytodevelopembeddedsystems,reducingdevelopmentcosts,genericproductsincreasedtoreplacement.Combinationofthetraditionalembeddedsystemsaresmall,energy-less,anti-interferenceability,stablecharacteristics,th
5、edevelopmentofembeddeddataacquisitionsystemproducts,whetherasastand-aloneproduct,orafunctionofasystemofmodules,allItisverymeaningful.DataAcquisitionSystemisacomputer,communicationsandelectronictechnology,industrialcontrolforanintegrateddetectionsystem.T
6、hispaperintroducesembeddedLinux-baseddataacquisitionsystemhardwarearchitectureandsoftwaredesign.Toenhancethesystemtorespondtothereal-timeperformanceandmulti-taskprocessingcapabilityofhardwareusedintheARM9microprocessortechnology,atthesametimeLinuxoperat
7、ingsystemmigration,systemreliabilityandscalabilitycanbeimproved.DesignedtomakefulluseofthecharacteristicsofembeddedLinux.Systemsoftwaremoduleshaveadataacquisitionmodule,dataprocessingmodule,datamodulesanddatacommunicationsdiagnosticmodule.EmbeddedLinuxo
8、peratingsystemwillintroduceadataacquisitionsystemdesignandacceleratethedevelopmentofthesystemtofacilitatethefunctionsofthefutureexpansionoftheobservationaldatatoimprovethetimelinessandaccuracyofobservationtoachievetheautomation.E
