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1、本科毕业生外文文献翻译学生姓名:李玄彤指导教师:赵肖宇所在学院:信息技术学院专业:通信工程中国·大庆2011年5月6[原文]IndustrialEthernetandIntelligentBuilding1IndustrialEthernetthebackground1.1Unifiedfieldbusstandardsdashed,thetemptationremainsIn1984theUnitedStatesproceedtodevelopinternationalstandardsfieldbus,afewyears,themajorcompaniesforcommercial
2、interests,Fieldbusstandardscannotalwaysuniform.Throughmultiplevoting,consultation,inJanuary2000announcedthatthefieldbusinternationalstandardsIEC61158willbeeightbus(Prefabs,Interfuse,P-NET,World,etc.)atthesametimeasinternationalstandards(currentlyhas10kinds),formedTheoutcomeofacompromise.Atthesam
3、etime,majorforeigncompanieshavealsolauncheditsownstandards,suchasLONWORKS,CAN,Japan'sMitsubishi,FranceSchneider,thecurrentnumberofbusstandardsatthesametimethesituationstillexists,theysaytheopennessandinteroperabilityonlyAtthesamecanbeachievedunderabusstandard,differentstandardsbetweenthebusissti
4、lllimited.Theinterconnectionbetweendifferentbusandcannotbeguaranteed,sopeopleintheireffortstoseekaunifiedstandardfieldbus,somepeoplehaveproposedtheuseofTCP/IPprotocolEthernet.1.2Thedemandforsystemintegration(1)industrialautomationcontrolintegratedenterpriseinformationisChina'snationalpolicytocre
5、ateautomationandinformationtechnologyasanexample:Intheneedtochangethebusinessprocessesofthesametime,managementinformationsystemsande-commerce,decentralizednetworkofmanufacturerstobeintegrated,theexistingenterpriseresourceERPtransformedintoWEB-basedapplications.Thecurrentsinglefromtheautomationof
6、industrialautomation,factoryautomation,tothedevelopmentofautomationsystems,theunderlyingmessageshouldbeintegratedintotheupperinformationonlineinordertoachievetheintegrationofcontrolasshowninanintegratedsystem.Modernproductionsystemforamulti-storeyindustrialcontrolsystems,generallyfallintothreeti
7、ers:6•Equipment-testingequipmentandconnectivityimplementingagencies;•Controlofthedataobtainedfromthesceneequipment,completethevariouscontrol,monitoringoperatingparameters,alarmandhistoricaltrendanalysis;•Informationlayerwill