1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-22780-7 SANS 19762-4:2009Edition 1 ISO/IEC 19762-4:2008Edition 1 SOUTH AFRICAN NATIONAL STANDARD Information technology Automatic identifi
4、cation and data capture (AIDC) techniques Harmonized vocabulary Part 4: General terms relating to radio communications This national standard is the identical implementation of ISO/IEC 19762-4:2008 and is adopted with the permission of the International Organization for Standardization and the Inter
5、national Electrotechnical Commission. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 19762-4:2009 Edition 1 ISO/IEC 19762-4:2008 Edition 1 Table of changes Change No. Date Scope Nation
6、al foreword This South African standard was approved by National Committee SABS SC 71K, Information technology Automatic identification and data capture techniques, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document w
7、as published in June 2009. Reference numberISO/IEC 19762-4:2008(E)ISO/IEC 2008INTERNATIONAL STANDARD ISO/IEC19762-4First edition2008-06-15Information technology Automatic identification and data capture (AIDC) techniques Harmonized vocabulary Part 4: General terms relating to radio communications Te
8、chnologies de linformation Techniques automatiques didentification et de saisie de donnes (AIDC) Vocabulaire harmonis Partie 4: Termes gnraux relatifs aux communications radio SANS 19762-4:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .I
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12、ess given below. COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either
13、 ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO/IEC 2008 All rights reservedSANS 19762-4:2009This
14、 s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO/IEC 19762-4:2008(E) ISO/IEC 2008 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Classification of entries . 1 3 Terms and definitions. 1 4 Abbreviations 22 Bibliog
15、raphy . 24 Index 25 SANS 19762-4:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO/IEC 19762-4:2008(E) iv ISO/IEC 2008 All rights reservedForeword ISO (the International Organization for Standardization) and IEC (the International Elect
16、rotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of techni
17、cal activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technic
18、al committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circ
19、ulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held
20、 responsible for identifying any or all such patent rights. ISO/IEC 19762-4 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 31, Automatic identification and data capture techniques. ISO/IEC 19762 consists of the following parts, under the general titl
21、e Information technology Automatic identification and data capture (AIDC) techniques Harmonized vocabulary: Part 1: General terms relating to AIDC Part 2: Optically readable media (ORM) Part 3: Radio frequency identification (RFID) Part 4: General terms relating to radio communications Part 5: Locat
22、ing systems SANS 19762-4:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO/IEC 19762-4:2008(E) ISO/IEC 2008 All rights reserved vIntroduction ISO/IEC 19762 is intended to facilitate international communication in information technology,
23、 specifically in the area of automatic identification and data capture (AIDC) techniques. It provides a listing of terms and definitions used across multiple AIDC techniques. Abbreviations used within each part of ISO/IEC 19762 and an index of all definitions used within each part of ISO/IEC 19762 a
24、re found at the end of the relevant part. SANS 19762-4:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 19762-4:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .INTERNATIONA
25、L STANDARD ISO/IEC 19762-4:2008(E) ISO/IEC 2008 All rights reserved 1Information technology Automatic identification and data capture (AIDC) techniques Harmonized vocabulary Part 4: General terms relating to radio communications 1 Scope This part of ISO/IEC 19762 provides general terms and definitio
26、ns relating to radio communications in the area of automatic identification and data capture techniques. This glossary of terms enables the communication between non-specialist users and specialists in radio communications through a common understanding of basic and advanced concepts. 2 Classificati
27、on of entries The numbering system employed within ISO/IEC 19762 is in the format nn.nn.nnn, in which the first two numbers (nn.nn.nnn) represent the “Top Level” reflecting whether the term is related to 01 = common to all AIDC techniques, 02 = common to all optically readable media, 03 = linear bar
28、 code symbols, 04 = two-dimensional symbols, 05 = radio frequency identification, 06 = general terms relating to radio, 07 = real time locating systems, and 08 = MIIM. The second two numbers (nn.nn.nnn) represent the “Mid Level” reflecting whether the term is related to 01 = basic concepts/data, 02
29、= technical features, 03 symbology, 04 = hardware, and 05 = applications. The third two or three numbers (nn.nn.nnn) represent the “Fine” reflecting a sequence of terms. The numbering in this part of ISO/IEC 19762 employs “Top Level” numbers (nn.nn.nnn) of 06. 3 Terms and definitions 06.01.01 radio
30、frequency frequency of a periodic radio wave or of the corresponding periodical electrical oscillation NOTE This term and its abbreviation may qualify an electrical device for generating or collecting radiated waves. IEC 60050-713:1998, 713-06-02 NOTE Radio Frequency (RF) (in RID). Radio frequency b
31、etween 30 Hz and 3 GHz. 06.01.02 radio frequency data communication RF/DC system by which remote devices communicate with a host computer via a radio link NOTE 1 Hand-held readers can send the information collected back to a controlling process without the need for fixed wiring for the data cables.
32、NOTE 2 One common use for RF/DC is on forklift trucks. SANS 19762-4:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO/IEC 19762-4:2008(E) 2 ISO/IEC 2008 All rights reserved06.01.03 electromagnetic field field characterizing the electric
33、 and magnetic conditions of a material medium or of vacuum, defined by the following set of four vector quantities: E: electric field (vector) D: electric flux density (vector) H: magnetic field (vector) B: magnetic flux density (vector) NOTE Adapted from IEC 50 (705):1995, 705-01-07. Figure 1 Elect
34、romagnetic field 06.01.04 air interface conductor-free medium, usually air, between a transmitter and the receiver through which communication, e.g. data and telemetry, is achieved by means of a modulated inductive or propagated electromagnetic field IEC 60050-702, 702-06-17 06.01.05 electromagnetic
35、 spectrum range or continuum of electromagnetic radiation, characterized in terms of frequency or wavelength 06.01.06 electromagnetic wave wave characterized by the propagation of a time-varying electromagnetic field NOTE An electromagnetic wave is produced by variations of electric charges or elect
36、ric currents. IEC 50 (705):1995, 705-01-09 SANS 19762-4:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO/IEC 19762-4:2008(E) ISO/IEC 2008 All rights reserved 306.01.07 electric field constituent of an electromagnetic field which is cha
37、racterized by the electric field strength E together with the electric flux density D NOTE In French, the term “champ lectrique” is also used for the quantity electric field strength. IEC 60050-121, 121-11-67 06.01.08 far field region region of an electromagnetic field of an antenna wherein the pred
38、ominant components of the field are those which represent a propagation of energy and wherein the angular field distribution is essentially independent of the distance from the antenna IEC 50 (712):1992, 712-02-02 NOTE 1 In the far field region, field distribution is unaffected by the antenna struct
39、ure and the wave propagates as a plane wave. cf. radiating near field 06.01.09 magnetic field constituent of an electromagnetic field which is characterized by the magnetic field strength H together with the magnetic flux density B 221-01-01 MOD NOTE In French, the term “champ magntique” is also use
40、d for the quantity magnetic field strength. IEC 60050-121, 121-11-69 06.01.10 inductive coupling process of transferring modulated data or energy from one system component to another, reader to transponder for example, by means of a varying magnetic field NOTE An inductive coupled tag uses a coil to
41、 transfer data or power from the magnetic field output by an interrogator. 06.01.11 electromagnetic coupling coupling through a magnetic field NOTE Also referred to as inductive coupling or an electric field. 06.01.12 field strength transmitter field intensity (deprecated) magnitude of the electroma
42、gnetic field created at a given point by a radio transmitting system operating at a specified characteristic frequency with specified installation and modulation conditions IEC 50 (705):1995, 705-08-31 SANS 19762-4:2009This s tandard may only be used and printed by approved subscription and freemail
43、ing clients of the SABS .ISO/IEC 19762-4:2008(E) 4 ISO/IEC 2008 All rights reserved06.01.13 equivalent isotropically radiated power EIRP product of the net radiated RF power of a transmitter and the gain of an antenna system in one direction relative to an isotropic source NOTE 1 The maximum power g
44、ain of a transmitting antenna in any direction multiplied by the net power accepted by the antenna from the connected transmitter. EXAMPLE 36 dBm EIRP equals 4 W transmitted into an isotropic antenna, or 1 W transmitted into a 6 dB antenna. NOTE 2 Also referred to as Effective Isotropically Radiated
45、 Power, Equivalent Isotropical Radiated Power, and Effective Isotropical Radiated Power. 06.01.14 effective radiated power ERP amount of power actually radiated by a transmitter and antenna combination (the applied power multiplied by the efficiency of the antenna) cf. EIRP NOTE To convert between E
46、RP and EIRP, add 2,15 dB, as a dipole antenna has a gain of 2,15 dBi. For example, to convert the European Power output of 2 W ERP (which is +33 dBm) to EIRP, add 2,15 dB to get +35,15 dBm, which is very close to the FCC limit of 4 W EIRP (+36 dBm). 06.01.15 frequency number of cycles a periodic sig
47、nal executes in unit time NOTE Usually expressed in hertz (cycles per second) or appropriate weighted units such as kilohertz (kHz), megahertz (MHz) and gigahertz (GHz). 06.01.16 frequency band continuous set of frequencies lying between two specified limiting frequencies NOTE 1 A frequency band is
48、characterized by two values which define its position in the frequency spectrum, for instance its lower and upper limiting frequencies, as opposed to the bandwidth which is characterized by one value. NOTE 2 The nomenclature of the frequency and wavelength bands used in RFID are given in Table 1. NO
49、TE 3 Certain frequency ranges are sometimes designated by letter symbols consisting of capital letters which may be accompanied by a small letter as subscript. NOTE 4 Adapted from IEC 60050-713. SANS 19762-4:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO/IEC 19762-4:2008(E) ISO/IEC 2008 All rights reserved 5Table 1 Nomenclature of frequency and wavelength bands BAND NUMBER (NOTE 1) ABBRE-VIATION FREQUENCY RAN
