ISO/IEC 18000-6-2010 信息技术.项目管理用射频识别.第6部分:空气接口参数从860MHz至960MHz的通信

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【英文标准名称】:Informationtechnology—Radiofrequencyidentificationforitemmanagement—Part6:Parametersforairinterfacecommunicationsat860MHzto960MHz
【原文标准名称】:信息技术.项目管理用射频识别.第6部分:空气接口参数从860MHz至960MHz的通信
【标准号】:ISO/IEC18000-6-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-12-01
【实施或试行日期】:2010-12-01
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Airinterfaces;Automatic;Bandoffrequencies;Characterrecognition;Codedrepresentation;Codes;Coding;Coding(dataconversion);Communication;Communicationprocesses;Conversion;Dataacquisition;Dataexchange;Dataformats;Dataprocessing;Datarepresentation;Datatransfer;Definitions;Descriptions;Encoding;Exchangeofgoods;Frequencies;Goodtrade;Highfrequencies;High-frequencyengineering;Identification;Informationinterchange;Informationtechnology;Interoperability;Item;Labellings;Management;Objects;Physicaldistributionmanagement;Physicallayers;Protocols;RadioFrequencyIdentification;Radiofrequencies;Radio-frequencysignals;RFID;Specification;Specification(approval);Symbols
【摘要】:ThispartofISO/IEC18000definestheairinterfaceforradiofrequencyidentification(RFID)devicesoperatinginthe860MHzto960MHzIndustrial,Scientific,andMedical(ISM)bandusedinitemmanagementapplications.ItprovidesacommontechnicalspecificationforRFIDdevicesthatcanbeusedbyISOcommitteesdevelopingRFIDapplicationstandards.ThispartofISO/IEC18000isintendedtoallowforcompatibilityandtoencourageinter-operabilityofproductsforthegrowingRFIDmarketintheinternationalmarketplace.Itdefinestheforwardandreturnlinkparametersfortechnicalattributesincluding,butnotlimitedto,operatingfrequency,operatingchannelaccuracy,occupiedchannelbandwidth,maximumeffectiveisotropicradiatedpower(EIRP),spuriousemissions,modulation,dutycycle,datacoding,bitrate,bitrateaccuracy,bittransmissionorder,and,whereappropriate,operatingchannels,frequencyhoprate,hopsequence,spreadingsequence,andchiprate.Itfurtherdefinesthecommunicationsprotocolusedintheairinterface.ThispartofISO/IEC18000specifiesthephysicalandlogicalrequirementsforapassive-backscatter,Interrogator-Talks-First(ITF)ortag-talks-only-after-listening(TOTAL)RFIDsystem.ThesystemcomprisesInterrogators,andtags,alsoknownaslabels.AnInterrogatorreceivesinformationfromatagbytransmittingacontinuous-wave(CW)RFsignaltothetag;thetagrespondsbymodulatingthereflectioncoefficientofitsantenna,therebybackscatteringaninformationsignaltotheInterrogator.ThesystemisITF,meaningthatatagmodulatesitsantennareflectioncoefficientwithaninformationsignalonlyafterbeingdirectedtodosobyanInterrogator,orTOTAL,meaningthatatagmodulatesitsantennareflectioncoefficientwithaninformationsignaluponenteringanInterrogator'sfieldafterfirstlisteningforInterrogatormodulationinordertodetermineifthesystemisITFornot.Indetail,thispartofISO/IEC18000containsonemodewithfourtypes.Thedetailedtechnicaldifferencesbetweenthefourtypesareshownintheassociatedparametertables.TypesA,BandCareITF.TypeAusesPulse-IntervalEncoding(PIE)intheforwardlinkandanadaptiveALOHAcollision-arbitrationalgorithm.TypeBusesManchesterintheforwardlinkandanadaptivebinary-treecollision-arbitrationalgorithm.TypeCusesPIEintheforwardlinkandarandomslottedcollision-arbitrationalgorithm.TypeDisTOTALbasedonPulsePositionEncodingorMillerM=2encodedsubcarrier.ThispartofISO/IEC18000specifies?physicalinteractions(thesignallinglayerofthecommunicationlink)betweenInterrogatorsandtags,?Interrogatorandtagoperatingproceduresandcommands,?thecollisionarbitrationschemeusedtoidentifyaspecifictaginamultiple-tagenvironment.
【中国标准分类号】:
【国际标准分类号】:35_040
【页数】:470P.;A4
【正文语种】:英语


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【英文标准名称】:Methodsoftestforrubberandplasticshosesandhoseassemblies.Determinationofdimensions.Measurementoflengthofhosesandhoseassemblies
【原文标准名称】:橡胶和塑料软管及软管组件的试验方法.第101部分:尺寸的测定.第2节:软管与软管组件长度的测量
【标准号】:BS5173-101.2-1987
【标准状态】:作废
【国别】:英国
【发布日期】:1987-04-30
【实施或试行日期】:1987-04-30
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:尺寸测量;柔性管;管接头;天然橡胶;塑料;长度测量;长度;尺寸;管道配件;合成橡胶;管
【英文主题词】:pipes;naturalrubber;dimensionalmeasurement;pipeconnections;plastics;syntheticrubber;flexiblepipes;length;lengthmeasurement;dimensions;pipefittings
【摘要】:
【中国标准分类号】:G42;G33
【国际标准分类号】:23_040_70
【页数】:6P;A4
【正文语种】:英语


【英文标准名称】:Naturalstonetestmethods-Determinationofwaterabsorptioncoefficientcapillarity;GermanversionEN1925:1999
【原文标准名称】:天然石料检验方法.毛细作用吸水系数测定
【标准号】:DINEN1925-1999
【标准状态】:现行
【国别】:德国
【发布日期】:1999-05
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:符号;试验;测定;方法;吸水率;材料试验;建筑;天然石料;天然石料;试样;准备
【英文主题词】:Bushings;Capillarity;Construction;Determination;Materialstesting;Methods;Naturalstone;Naturalstones;Preparation;Symbols;Testspecimens;Testing;Waterabsorption;Waterabsorptioncoefficient
【摘要】:Thedocumentspecifiesamethodofdeterminingofthewaterabsorptioncoefficientofnaturalstoneduetocapillaryaction.Afterdrytoaconstantmass,thesampleisimmersed3mmofwaterononeofitssides(nevertheworkedside)andtheincreaseinmassismeasured.#,,#
【中国标准分类号】:Q21
【国际标准分类号】:73_020;91_100_15
【页数】:7P;A4
【正文语种】:德语