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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


【英文标准名称】:Safetyofmachinery.Evaluationoftheemissionofairbornehazardoussubstances.Part8:Roommethodforthemeasurementofthepollutantconcentrationparameter
【原文标准名称】:机械安全.气载有害物质排放的评估.第8部分:污染物浓度参数测量的室内方法
【标准号】:ISO29042-8-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-01-15
【实施或试行日期】:2011-01-15
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC199
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Air;Aircleaningequipment;Airpurification;Atmosphericpollutants;Closedtestrooms;Concentration;Concentrationvalues;Dangerousstuffs;Definitions;Emission;Emissionvalues;Equipmentsafety;Evaluations;Impurities;Machines;Measurement;Measuringtechniques;Methods;Occupationalsafety;Performanceinservice;Pollutantconcentration;Pollutantemissions;Pollutants;Pollutionoftheair;Ratings;Safety;Safetyengineering;Safetyofmachinery;Testing;Vapours
【摘要】:ThispartofISO29042specifiesaroommethodforthemeasurementofthepollutantconcentrationparameterofagivenairbornehazardoussubstancefrommachines,locatedinatestroomandoperatingthemachinesunderdefinedconditions.ThismethodisapplicableonlytomachineswithalocalexhaustventilationwithanairflowrateW500m3/handmachineswithoutrecirculatedair.Measurementofthepollutantconcentrationparameterofamachinecanserveforthe:a)evaluationoftheperformanceofamachine;b)evaluationoftheimprovementofthemachine;c)comparisonofmachineswithindifferentgroupsofmachineswiththesameintendeduse(suchgroupsbeingdefinedbythefunctionandmaterialsprocessed);d)rankingofmachinesfromthesamegroupaccordingtotheirpollutantconcentrationparameters;e)determinationofthestateoftheartofamachinewithrespecttoitspollutantconcentrationparameter.
【中国标准分类号】:
【国际标准分类号】:13_110
【页数】:10P.;A4
【正文语种】:英语