多通信方式的數(shù)據(jù)收集轉(zhuǎn)發(fā)器的研究.pdf

1、武漢理工大學(xué)碩士學(xué)位論文多通信方式的數(shù)據(jù)收集轉(zhuǎn)發(fā)器的研究姓名：焦付強(qiáng)申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：計(jì)算機(jī)應(yīng)用技術(shù)指導(dǎo)教師：閔聯(lián)營(yíng)20090501AbstractAnAutomaticMeterReadingSystem(AMR)usesmodemcommImicationsaIldcomputertechnologiestoachieverealtimeremotemonitoringofflowmetersandcollectingoper

2、ationdataofthem，improvingoperationalefficiencyanduserusingconvenienceAdatarepeaterinanAMRfacilitatesaccurateaIldstablecommunicationsbetweenserversandflowmetersThediversityofextemaldevicecommunicationinterfacesrequirestha

3、tthedatarepeaterprovidesawiderangeofcommunicationmethodsTheresearchworkpresentedinthisthesisfocusesonthedevelopmentofaMultiCommunicationDataRepeater(MCDR)，includesanalyzingthefunctionalrequirementsofMCDtLselectingtheappr

4、opriatehardwareandsoftwaredevelopmentplatform，designingandimplementingMCDRFirstlythethesisstudiesthemodemcommunicationtechniquessuchasserialportcommunications，GeneralPacketRadioService(GPRS)communicationsandEthemetportco

5、mmunicationsSecondly，thereal—timeoperatingsystempC／OSIIisportedtoLPC2210basedonARM7kerneltosimplifythedevelopmentprocessofembeddedsoftwareThirdlyinodertoenableMCDRtocommunicatewithserverbyEthemetnetworkinterfaceThethesis

6、analyzestheopensourceTCP／IPprotocolstackLwIPstudiesthememorymanagementanddataflowprocessioninLwIPthenLwlPiSportedtoLPC22lO肛C／OSIIplatform，whichprovidesuserswithEthernetnel、釉rkinterfaceFourthlythethesisimplementsdriversof

7、systemperipheralswhichshieldthehardwaredetailsandprovideuserswithsimpleinterfaces，thenthethesisdesignsthecommunicationflamebetweenserverandmeteranddividesthesystemintotasksaccordingtothefunctionalrequirementKeywords：seri