嵌入式系统的网络服务器外文翻译

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1、TheDIL/NetPCsDNP/1110–UsingtheEmbeddedLinuxWebServerforEmbeddedSystemsAfterthe“everybody-in-the-Internet-wave”nowobviouslyfollowsthe“everything-in-the-Internet-wave”.Themostcoffee,vendingandwashingmachinesarestillnotavailableabouttheworldwidenet.HowevertheembeddedInternetintegrationforrem

2、otemaintenanceanddiagnosticaswellastheso-calledM2Mcommunicationisgrowingwithaconsiderablespeedrate.JusttheremotemaintenanceanddiagnosticofcomponentsandsystemsbyWebbrowsersviatheInternet,oralocalIntranethasaveryhighweightformanydevelopmentprojects.Innumerousdevelopmentdepartmentspeoplework

3、oncompletelyWebbasedconfigurationsandservicesforembeddedsystems.TheremainingdaysoftheclassicuserinterfacemadebyasmallLC-displaywithfrontpanelandafewfunctionkeysareover.ThroughfutureevolutionsinthefieldofthemobileInternet,Bluetooth-basedPANs(PersonalAreaNetwork's)andtherapidlygrowingM2Mcom

4、munication(M2M=Machine-to-Machine)afurtherinnovatingadvanceistobeexpected.ThecentralfunctionunittogetaccessonanembeddedsystemviaWebbrowseristheWebserver.SuchWebserversbringthedesiredHTMLpages(HTML=HyperTextMarkupLanguage)andpicturesovertheworldwideInternetoralocalnetworktotheWebbrowser.Th

5、ishappensHTTP-based(HyperTextTransferProtocol).ATCP/IPprotocolstack–thatmeansitisbasedonsophisticatedandestablishedstandards–managestheentirecommunication.Webserver(HTTPserver)andbrowser(HTTPclient)buildTCP/IP-applications.HTTPachievedaphenomenaldistributioninthelastyears.Meanwhilemillion

6、sofuseraroundtheworldsurfHTTP-basedintheWorldWideWeb.Todayalmosteverypersonalcomputeroffersthenecessaryassistanceforthisprotocol.Thisstatusisvalidmoreandmoreforembeddedsystemsalso.TheHTTPspreadsupwithafastratetoo.20TheDIL/NetPCsDNP/1110–UsingtheEmbeddedLinux1.TCP/IP-basedHTTPasCommunicati

7、onPlatformHTTPisasimpleprotocolthatisbasedonaTCP/IPprotocolstack(picture1.A).HTTPusesTCP(TransmissionControlProtocol).TCPisarelativecomplexandhigh-qualityprotocoltotransferdatabythesubordinateIPprotocol.TCPitselfalwaysguaranteesasafeguardedconnectionbetweentwocommun