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0基于ARM的多对象远程抄表系统集中器的设计与实现(6)

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哈尔滨理工人学工学硕十学位论文

updateand

notonlytransplant.Withoutthepresentationofmultitaskcontrolmechanism,atherealizationofapplicationsisbigchallenge,butalsonoassurancetotheapplications’reliability.

First,themulti—objectremotereadingmeter

researched

concentratorsystemtheentirestructurewasininthethethesis.Thesoftwareandhardwareinrealizationofthesystemwereresearchedthesis.Accomplished

microprocessorhasperipherichardwareresource’Sexpansion,¥3C2410

suchasdemandingminimumhardwareresourceexternalstorage,LCD,clock,

communicationreset,powersupply,RS-485communicationmodule,CAN

tomodule.Thereal—timeclockprovidestandardtimethetimingauto—apparatus

whichequippedmulti-objectconcentrator.While

concentratoraswhileavoidthestabilizedpowersupplyoftheconcentratorcomesfromthecircuitpowersupply.Toworkingofthe

moduleWasasensurethestabilizedwatchdogsystemhalted,thedesigned.Themaintaskofthedatastoragehereisstoragingparameters,variants,theparametersofconcentrator,andmanagingthedataoftheintelligence

betweentheapparatus.Wedefinedtheup—linkastheconcentratorandtheupcomputer,ofwhich,the

andcommunicationlinecommunicationmodehereadoptedtheCANfieldbus;while,thedown—linkasthedefinitionisthecommunicationlinebetweentheconcentrator

theRS-485communicationmode.Afterthe

partwastheapparatus,itadoptedintroduceofhardwares,thesoftwareofthedescribed.Focusonthedatastoragefunctionmulti-object

theconcentratorandWffl'eitsserialcommunicationfunction,theprogrammespeciallyremoteapparatusconcentratorwritten.Themulti-objectbasedonARM

technologyhasmuch

makingadvantage,suchashigllperformanceofdataprocessing,theupanddowncommunicationwork,andhighstable,highcostperformance,etc.

KeywordsRemotemeterreading,Multi-object,Concentrator,ARM9

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