基于嵌入式Linux的EPA通信協(xié)議開(kāi)發(fā)與應(yīng)用——EPA應(yīng)用層的開(kāi)發(fā)及應(yīng)用.pdf

1、X分類號(hào)TP393密級(jí)重慶郵電大學(xué)碩士學(xué)位論文論文題目基于嵌入式Linux的EPA通信協(xié)議開(kāi)發(fā)與應(yīng)用英文題目theDevelopmentandApplicationofEPAProtocol—basedonEmbeddedLinuxtheDevelopmentandApplicationofEPAstacksApplicationlayer碩士研究生王曉蕊指導(dǎo)教師至塾撞。接昱論文提交日期蘭璺：』：蘭論文答辯日期腳占6論文評(píng)閱人奎壟速杰i

2、!魚(yú)壘庭亟堡童隗壟竺竺庭!重壘鏖業(yè)魚(yú)!童答辯委員會(huì)主席鑫壁盎惑接曼魚(yú)叁蘭年月日蓬痰酆電大學(xué)鞭士論文摘要AbstractEPA(EthemetforPlantAutomation)standardshavebeenListedasthe14裊typeofinternationalfieldbusinIEC61158，theresearchofvariousconvertoLactuatorsignalacquiremodulesbased

3、onEPAisgreatlyboostedThen，thekeyproblemistodevelopprotocolsoftware、墑mhighefficiencyreliabilityandportabilityInthisthesis，fromtheviewofsoftwaredesign，thedesignandimplementationdetmlofEPAprotocolbasedonembeddedLinuxareanNy

4、zedandthedevelopingprocessofEPA8021lbwirelesstemperatureconvertorisintroducedAfterintroducingtheimportantmodulesofEPAprotocolandkeyelementsofembeddedsoftware’sdevelopment，intheviewofresonrce—limitedofembeddedsystemanalyz

5、ethekeypointsOfEpIAprotocol’sdesignandimplementationunderLinux，whichadoptedtechniquesincludingpartitioningmulti—task，assigningtask’sprioritydesigningcommunications，avoidingmemoryfragmentandbIock／wakeupsynchronization。The

6、ntheworkingprincipleandthetemperaturecollectingapplication’sdesignofEPA8021lbwirelessdetector氌atauthorcontributestoisintroduc醴indetail。ThisdeviceisaitapplicationofEPAprotocolandoneofthekeydevicesinwirelessmonitoringandco

7、ntrolsystemTheauthorhasaccomplishedtasksincludingdevelopingtheapplicationsoftware，transplantingEPAprotocol，cuttingLinuxkernelmudeditconfigurationfileTheEPAprotocoldevelopedbyauthorhaspassedtheEPAprotocol’sconsistencytest

8、，includingservicetestobjecttestandstatustestThetestresultprovedthevalidityofauthorsEPAprotocol；thetimeusedforprocessingEPAserviceisalsoprovided。TheresultofOPCsupervisorycontrolsoftwareshowthattheEPA8021tb輔irelesstemperat