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【英文标准名称】:Precisionclocksynchronizationprotocolfornetworkedmeasurementandcontrolsystems
【原文标准名称】:网络测量和控制系统用精密时钟同步协议
【标准号】:IEEE1588-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国电气电子工程师学会(US-IEEE)
【起草单位】:IEEE
【标准类型】:()
【标准水平】:()
【中文主题词】:时钟频率;钟点;控制系统;数据元;数据交换;数据处理;定义;分配系统;电气工程;信息交换;信息技术;主时钟;测量技术;网络;网络测量;精密度;协议;实时的;同步;术语;时间;计时开关;时钟脉冲;传输协议;表
【英文主题词】:Clockfrequencies;Clocktime;Controlsystems;Dataelements;Dataexchange;Dataprocessing;Definitions;Distributingsystems;Electricalengineering;Informationinterchange;Informationtechnology;Masterclock;Measuringtechniques;Network;Networkmeasurement;Precision;Protocols;Real-time;Synchronization;Terms;Time;Timeswitches;Time-pulse;Transmissionprotocol;Watches
【摘要】:Thisstandarddefinesaprotocolenablingprecisesynchronizationofclocksinmeasurementandcontrolsystemsimplementedwithtechnologiessuchasnetworkcommunication,localcomputing,anddistributedobjects.Theprotocolisapplicabletosystemscommunicatingbylocalareanetworkssupportingmulticastmessagingincluding,butnotlimitedto,Ethernet.Theprotocolenablesheterogeneoussystemsthatincludeclocksofvariousinherentprecision,resolution,andstabilitytosynchronizetoagrandmasterclock.Theprotocolsupportssystem-widesynchronizationaccuracyinthesub-microsecondrangewithminimalnetworkandlocalclockcomputingresources.Thedefaultbehavioroftheprotocolallowssimplesystemstobeinstalledandoperatedwithoutrequiringtheadministrativeattentionofusers.ThestandardincludesmappingstoUserDatagramProtocol(UDP)/InternetProtocol(IP),DeviceNet,andalayer-2Ethernetimplementation.Itincludesformalmechanismsformessageextensions,highersamplingrates,correctionforasymmetry,aclocktypetoreduceerroraccumulationinlargetopologies,andspecificationsonhowtoincorporatetheresultingadditionaldataintothesynchronizationprotocol.Thestandardpermitssynchronizationaccuraciesbetterthan1ns.Theprotocolhasfeaturestoaddressapplicationswhereredundancyandsecurityarearequirement.Thestandarddefinesconformanceandmanagementcapability.Thereisprovisiontosupportunicastaswellasmulticastmessaging.Thestandardincludesanannexonrecommendedpractices.Annexesdefiningcommunication-medium-specificimplementationdetailsforadditionalnetworkimplementationsareexpectedtobeprovidedinfutureversionsofthisstandard.
【中国标准分类号】:M11
【国际标准分类号】:
【页数】:289P;A4
【正文语种】:英语