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【英文标准名称】:Characterizationofpavementtexturebyuseofsurfaceprofiles-Specificationandclassificationofprofilometers
【原文标准名称】:表面轮廓用铺路材料表面结构的特性描述.轮廓测量仪的规范和分类
【标准号】:BSISO13473-3-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-11-25
【实施或试行日期】:2002-11-25
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:剖面高度;道路上层结构;分类系统;外形;工艺学;车行道(公路);表面性质;声信号;轮廓测定仪;路面(道路);道路磨耗层;表面;噪声降低;声学;组织;测定;试验;轮廓的研究;数据处理;精整
【英文主题词】:Acousticsignals;Acoustics;Carriageways;Classification;Classificationsystems;Dataprocessing;Definition;Definitions;Determination;Finishes;Interpretations;Investigationofprofiles;Measurement;Measuringinstruments;Measuringranges;Methods;Noisereduction;Pavements(roads);Profilheight;Profile;Profilometers;Roadcarpets;Roadsuperstructure;Scanning;Surfaceproperties;Surfaces;Technology;Testing;Texture;Use
【摘要】:ThispartofISO13473specifiesrequirementsforprofilometersusedinpavementengineeringinordertogivemeaningfulandaccuratemeasurementofpavementmicro-,macro-andmegatexturecharacteristicsofpavedroadandairfieldsurfaces.Italsoincludesschemesfortheclassificationofsuchprofilometerswithrespecttotheiruseandoverallaccuracy.Theprofilometersmaybeofanyoperationaltype.ThescopeofthispartofISO13473doesnotincludeprofileanalysisofmachinedsurfaces.Alsoexcludedfromthescopeistheprofileanalysisofroadunevenness.NOTE1Profileanalysisofmachinedsurfacesisdealtwithinotherstandards,forexampleISO3274,ISO4287,ISO4288,ISO5436-1,ISO5436-2andISO12085.NOTE2ProfileanalysisofroadunevennessisdealtwithinISO8608.NOTE3ThroughoutthispartofISO13473,theuseoftheterm"pavement"means"pavedroadorairfieldsurface".
【中国标准分类号】:Q20
【国际标准分类号】:17_140_30;93_080_20
【页数】:22P.;A4
【正文语种】:英语


【英文标准名称】:Industrialcommunicationnetworks.Fieldbusspecifications.Data-linklayerprotocolspecification.Type18elements
【原文标准名称】:工业通讯网络.现场总线规范.数据链路层协议规范.18型元件
【标准号】:BSEN61158-4-18-2008
【标准状态】:作废
【国别】:英国
【发布日期】:2008-05-30
【实施或试行日期】:2008-05-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:总线系统;总线;电路网络;通信;控制设备;控制系统;控制工艺学;数据通信;数据链路层;数据连接系统;数据处理;数据服务;数据传送;数字的;数字数据;数字工程;数字信号;电子数据处理;电气工程;电子仪器;电子系统;现场总线;制导系统;工业的;工业设施;信息交换;信息处理;信息技术;接口(数据处理);链路层;开放系统互连;物理层;过程控制;过程控制工程;过程控制系统;协议规范;协议;信号;规范;规范(验收);传输媒质;传输协议
【英文主题词】:Automaticcontrolsystems;Busnetworks;Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Communicationnetworks;Communicationprocedures;Computernetworks;Controlequipment;Controlsystems;Controltechnology;Datacommunication;Datalinklayer(OSI);Datalinklayers;Datalinksystem;Dataprocessing;Dataservices;Datatransfer;Datatransmission;Definitions;Digital;Digitaldata;Digitalengineering;Digitalsignals;EDP;Electronicinstruments;Electronicsystems;Englishlanguage;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces;Interfaces(dataprocessing);Linklayers;Opensystemsinterconnection;OSI;Processcontrol;Processcontrolengineering;Processcontrolsystems;Protocolspecification;Protocols;Signals;Specification;Specification(approval);Transmissionmedia;Transmissionprotocol
【摘要】:1.1GeneralThedata-linklayerprovidesbasictime-criticalmessagingcommunicationsbetweendevicesinanautomationenvironment.Thisprotocolprovidescommunicationopportunitiestoallparticipatingdata-linkentitiesa)inasynchronously-startingcyclicmanner,accordingtoapre-establishedschedule,andb)inacyclicoracyclicasynchronousmanner,asrequestedeachcyclebyeachofthosedata-linkentities.Thusthisprotocolcanbecharacterizedasonewhichprovidescyclicandacyclicaccessasynchronouslybutwithasynchronousrestartofeachcycle.1.2SpecificationsThispartofIEC61158specifiesa)proceduresforthetimelytransferofdataandcontrolinformationfromonedata-linkuserentitytoapeeruserentity,andamongthedata-linkentitiesformingthedistributeddatalinkserviceprovider;b)proceduresforgivingcommunicationsopportunitiestoallparticipatingDL-entities,sequentiallyandinacyclicmannerfordeterministicandsynchronizedtransferatcyclicintervalsuptoonemillisecond;c)proceduresforgivingcommunicationopportunitiesavailablefortime-criticaldatatransmissiontogetherwithnon-time-criticaldatatransmissionwithoutprejudicetothetime-criticaldatatransmission;d)proceduresforgivingcyclicandacycliccommunicationopportunitiesfortime-criticaldatatransmissionwithprioritizedaccess;e)proceduresforgivingcommunicationopportunitiesbasedonstandardISO/IEC8802-3mediumaccesscontrol,withprovisionsfornodestobeaddedorremovedduringnormaloperation;f)thestructureofthefieldbusDLPDUsusedforthetransferofdataandcontrolinformationbytheprotocolofthisstandard,andtheirrepresentationasphysicalinterfacedataunits.1.3ProceduresTheproceduresaredefinedintermsofa)theinteractionsbetweenpeerDL-entities(DLEs)throughtheexchangeoffieldbusDLPDUs;b)theinteractionsbetweenaDL-service(DLS)providerandaDLS-userinthesamesystemthroughtheexchangeofDLSprimitives;c)theinteractionsbetweenaDLS-providerandaPh-serviceproviderinthesamesystemthroughtheexchangeofPh-serviceprimitives.1.4ApplicabilityTheseproceduresareapplicabletoinstancesofcommunicationbetweensystemswhichsupporttime-criticalcommunicationsserviceswithinthedata-linklayeroftheOSIorfieldbusreferencemodels,andwhichrequiretheabilitytointerconnectinanopensystemsinterconnectionenvironment.Profilesprovideasimplemulti-attributemeansofsummarizinganimplementation’scapabilities,andthusitsapplicabilitytovarioustime-criticalcommunicationsneeds.1.5ConformanceThispartofIEC61158doesnotspecifyindividualimplementationsorproducts,nordotheyconstraintheimplementationsofdata-linkentitieswithinindustrialautomationsystems.Thereisnoconformanceofequipmenttothisdata-linklayerservicedefinitionstandard.Instead,conformanceisachievedthroughimplementationofthecorrespondingdata-linkprotocolthatfulfillstheType18data-linklayerservicesdefinedinthisstandard.
【中国标准分类号】:N17
【国际标准分类号】:25_040_40;35_100_20;35_160;35_240_50
【页数】:40P.;A4
【正文语种】:英语