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【英文标准名称】:Informationtechnology.Radiofrequencyidenficiationforitemmanagement.Parametersforairinterfacecommunicationsbelow135KHz
【原文标准名称】:信息技术.细则管理用射频识别.135KHz以下空中接口通信用参数
【标准号】:BSISO/IEC18000-2-2004
【标准状态】:作废
【国别】:英国
【发布日期】:2004-12-07
【实施或试行日期】:2004-12-07
【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】:空中接口;自动;频带;字符识别;代码表示;代码;译码;编码(数据转换);通讯;传播过程;变换;数据采集;数据交换;数据格式;数据处理;数据表示;数据传送;定义(术语);描述;编码;货物交换;频率;贸易;高频;高频工程;识别;信息交换;信息技术;交替使用性;条款;贴标签;管理;目的;实体分配管理;协议;射频识别;无线电频率识别;射频;射频信号;RFID;规范;规范(验收);符号
【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】:L71
【国际标准分类号】:35_240_60
【页数】:82P;A4
【正文语种】:英语


Product Code:SAE AMS6395
Title:Steel Sheet, Strip, and Plate, 0.95Cr - 0.20Mo (0.38 - 0.43C) (SAE 4140)
Issuing Committee:Ams E Carbon And Low Alloy Steels Committee
Scope:This specification covers an aircraft-quality, low-alloy steel in the form of sheet, strip, and plate.