【英文标准名称】:Programmablemeasuringinstruments;interfacesystem(byteserial,bitparallel);part1:functional,electricalandmechanicalspecifications,systemapplicationsandrequirementsforthedesigneranduser
【原文标准名称】:可编程测量仪表接口系统(字节串行、位并行)第1部分:功能规范、电气规范、机械规范、系统应用和对设计者及用户的要求
【标准号】:IEC60625-1-1993
【标准状态】:作废
【国别】:国际
【发布日期】:1993-10
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC65C
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:N17;
【国际标准分类号】:35_200
【页数】:131P;A4
【正文语种】:英语


【英文标准名称】:Informationtechnology-Radiofrequencyidentificationforitemmanagement-Part2:Parametersforairinterfacecommunicationsbelow135kHz
【原文标准名称】:信息技术.项目管理的射频识别.第2部分:135KHz以下的空中接口通信用参数
【标准号】:ISO/IEC18000-2-2004
【标准状态】:作废
【国别】:国际
【发布日期】:2004-09
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1/SC31
【标准类型】:()
【标准水平】:()
【中文主题词】:数据采集;传播方式;项目;代码表示;目的;标签;传播学;管理;射频信号;编码;编码;贸易;空中接口;代码;协议;数据表示;变换;描述;符号;识别;实体分配管理;自动;数据格式;编码(数据转换);交替使用性;数据交换;规范;数据处理;数据传送;高频工程;信息技术;频率;信息交换;无线电频率认证;货物交换;字符识别;规范(验收);射频;频带;高频;定义
【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;Protocols;RadioFrequencyIdentification;Radiofrequencyidentifications;Radiofrequencies;Radio-frequencysignals;RFID;Specification;Specification(approval);Symbols
【摘要】:ThispartofISO/IEC18000definestheairinterfaceforradiofrequencyidentification(RFID)devicesoperatingbelow135kHzusedinitemmanagementapplications.ItspurposeistoprovideacommontechnicalspecificationforRFIDdevicestoallowforcompatibilityandtoencourageinter-operabilityofproductsforthegrowingRFIDmarketintheinternationalmarketplace.Thispartdefinestheforwardandreturnlinkparametersfortechnicalattributesincluding,butnotlimitedto,operatingfrequency,operatingchannelaccuracy,occupiedchannelbandwidth,spuriousemissions,modulation,dutycycle,datacoding,bitrate,bitrateaccuracy,bittransmissionorder.Itfurtherdefinesthecommunicationsprotocolusedintheairinterface.Thispartcontainstwotypes.Thedetailedtechnicaldifferencesbetweenthetypesareshownintheparametertables.ThispartofISO/IEC18000specifies?Thephysicallayerthatisusedforcommunicationbetweentheinterrogatorandthetag.?Theprotocolandthecommands?Themethodtodetectandcommunicatewithonetagamongseveraltags(“anti-collision”)Itspecifiestwotypesoftags:TypeA(FDX)andTypeB(HDX).Thesetwotypesdifferonlybytheirphysicallayer.Bothtypessupportthesameanti-collisionandprotocol.FDXtagsarepermanentlypoweredbytheinterrogator,includingduringthetag-to-interrogatortransmission.Theyoperateat125kHz.HDXtagsarepoweredbytheinterrogator,exceptduringthetag-to-interrogatortransmission.Theyoperateat134,2kHz.AnalternativeoperatingfrequencyisdescribedinAnnexB.Anoptionalanti-collisionmechanismisdescribedinAnnexD.
【中国标准分类号】:M04
【国际标准分类号】:35_040;35_240_60
【页数】:71P;A4
【正文语种】:英语