1、BSI Standards Publication BS ISO/IEC 24769-61:2015 Information Technology Real Time Locating System (RTLS) Device Conformance T e s t M e t h o d s Part 61: Low rate pulse repetition frequency Ultra Wide Band (UWB) air interfaceBS ISO/IEC 24769-61:2015 BRITISH STANDARD National foreword This British
2、 Standard is the UK implementation of ISO/IEC 24769-61:2015. The UK participation in its preparation was entrusted to Technical Committee IST/34, Automatic identification and data capture techniques. A list of organizations represented on this committee can be obtained on request to its secretary. T
3、his publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015 ISBN 978 0 580 82934 5 ICS 35.040 Compliance with a British Standard cannot confe
4、r immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2015. Amendments/corrigenda issued since publication Date T e x t a f f e c t e dBS ISO/IEC 24769-61:2015 Information Technology Real Time Locating
5、System (RTLS) Device Conformance Test Methods Part 61: Low rate pulse repetition frequency Ultra Wide Band (UWB) air interface Technologies de linformation Mthodes dessai de conformit du dispositif des systmes de localisation en temps rel (RTLS) Partie 61: Interface dair ultra large bas taux de band
6、e de frquence de rptition dimpulsion (UWB) INTERNATIONAL STANDARD ISO/IEC 24769-61 Reference number ISO/IEC 24769-61:2015(E) First edition 2015-10-01 ISO/IEC 2015 BS ISO/IEC 24769-61:2015ii ISO/IEC 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2015, Published in Switzerland All right
7、s reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from eit
8、her ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org ISO/IEC 24769-61:2015(E)BS ISO/IEC 24769-61:2015ISO/IEC 24769
9、-61:2015(E)Foreword iv Introduction v 1 Scope . 1 2 Normative references 1 3 T erms, definitions and abbr e viat ed t erms 1 3.1 Terms and definitions . 1 3.2 Abbreviated terms . 2 4 Conformance tests for ISO/IEC 24730-61. 2 4.1 General . 2 4.2 Default conditions applicable to the test methods 2 4.2
10、.1 Test environment 2 4.2.2 Default tolerance 2 4.2.3 Noise floor at test location. 2 4.2.4 Total measurement uncertainty . 3 4.3 Tag UWB RF transmission tests . . 3 4.3.1 General 3 4.3.2 Test Objective 3 4.3.3 Test procedure . 3 4.3.4 Test measurements and requirements . 4 4.3.5 Test report . 4 4.4
11、 Receiver UWB RF tests . 4 4.4.1 General 4 4.4.2 Test objective 5 4.4.3 Test procedure . 5 4.4.4 Test measurements and requirements . 5 4.4.5 Test report . 5 Annex A (normative) RF test measurement site. 6 ISO/IEC 2015 All rights reserved iii Contents PageBS ISO/IEC 24769-61:2015ISO/IEC 24769-61:201
12、5(E) Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical 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 t
13、echnical committees established by the respective organization to deal with particular fields of technical 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
14、 part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different
15、 approval criteria needed for the different types of document should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the
16、subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patent
17、s). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principl
18、es in the Technical Barriers to Trade (TBT), see the following URL: Foreword Supplementary information. The committee responsible for this document is ISO/IEC JTC 1, Information technology, Subcommittee SC 31, Automatic identification and data capture techniques. ISO/IEC 24769 consists of the follow
19、ing parts, under the general title Information technology Real- time locating systems (RTLS) device conformance test methods: Part 2: Test methods for air interface communication at 2,4 GHz Part 5: Test methods for chirp spread spectrum (CSS) at 2,4 GHz air interface Part 61: Low rate pulse repetiti
20、on frequency Ultra Wide Band (UWB) air interface Part 62: High rate pulse repetition frequency Ultra Wide Band (UWB) air interfaceiv ISO/IEC 2015 All rights reservedBS ISO/IEC 24769-61:2015ISO/IEC 24769-61:2015(E) Introduction ISO/IEC 24730-61 defines the air interfaces and an application programmin
21、g interface for Real Time Locating Systems (RTLS) devices used in asset management applications. This International Standard contains all measurements required to be made on a product in order to establish whether it conforms to ISO/IEC 24730-61. Test methods for measuring performance of equipment c
22、ompliant with ISO/IEC 24730-61 are given in ISO/IEC 24770-61 ISO/IEC 2015 All rights reserved vBS ISO/IEC 24769-61:2015BS ISO/IEC 24769-61:2015Information Technology Real Time Locating System (RTLS) Device Conformance Test Methods Part 61: Low rate pulse repetition frequency Ultra Wide Band (UWB) ai
23、r interface 1 Scope This International Standard defines the test methods for determining the conformance of Ultra Wide Band real-time locating system (RTLS) tags with the specifications given in the corresponding parts of ISO/IEC 24730-61, but does not apply to the testing of conformity with regulat
24、ory or similar requirements. The test methods require only that the mandatory functions, and any optional functions which are implemented, be verified. This may in appropriate circumstances, be supplemented by further, application specific functionality criteria that are not available to the general
25、 case. Unless otherwise specified, the tests in this International Standard apply exclusively to RTLS tags defined in ISO/IEC 24730-61. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For date
26、d references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO/IEC 19762-1, Information technology Automatic identification and data capture (AIDC) techniques Harmonized vocabulary Part 1: General terms rela
27、ting to AIDC ISO/IEC 19762-3, Information technology Automatic identification and data capture (AIDC) techniques Harmonized vocabulary Part 3: Radio frequency identification (RFID) ISO/IEC 24730-61:2013, Information technology Real time locating systems (RTLS) Part 61: Low rate pulse repetition freq
28、uency Ultra Wide Band (UWB) air interface 3 T erms, d efinitions and abbr e viat ed t erms For the purposes of this document, the terms and definitions given in ISO/IEC 19762-1, ISO/IEC 19762-3 and the following apply. 3.1 T erms and definiti ons 3.1.1 error vector magnitude EVM difference between t
29、he measured signal and a reference Note 1 to entry: A reference is a perfectly modulated signal. INTERNATIONAL ST ANDARD ISO/IEC 24769-61:2015(E) ISO/IEC 2015 All rights reserved 1BS ISO/IEC 24769-61:2015ISO/IEC 24769-61:2015(E) 3.2 A bbr e viat ed t erms DUT device under test EVM error vector magni
30、tude LEIP location enhancing information postamble PHY physical layer RBW resolution bandwidth RF radio frequency RFID radio frequency identification RTLS real time locating system TML tag management layer TOA time-of-arrival UWB ultra wide band VBW video bandwidth 4 Conformance tests for ISO/IEC 24
31、730-61 4.1 General This International Standard specifies a series of tests to determine the conformance of RTLS tags to the ISO/IEC 24730-61 air interfaces. The results of these tests shall be compared with the values of the parameters specified in ISO/IEC 24730-61 to determine whether the tag under
32、 test conforms. This International Standard also specifies a series of tests to determine the conformance of RTLS RF receivers to the ISO/IEC 24730-61 air interfaces. The results of these tests shall be compared with the values of the parameters specified in ISO/IEC 24730-61 to determine whether the
33、 RF receiver under test conforms. 4.2 Default c onditions applicable t o the t est methods 4.2.1 Test environment Unless otherwise specified, testing shall take place in an environment of temperature 23 C 3 C (73 F 5 F) and of relative humidity 25 % to 75 %. 4.2.2 Default tolerance Unless otherwise
34、specified, a default tolerance of 5 % shall be applied to the quantity values given to specify the characteristics of the test equipment and the test method procedures. 4.2.3 Noise floor at t est location Noise floor at test location shall be measured with the spectrum analyser in the same condition
35、s as the measurement of the DUT, with a span of 10 MHz: RBW, VBW and antenna. The spectrum analyser shall be configured in acquisition mode for at least 1 min.2 ISO/IEC 2015 All rights reservedBS ISO/IEC 24769-61:2015ISO/IEC 24769-61:2015(E) The maximum of the measured amplitude shall be at least 60
36、 dB below the expected value of the amplitude of the measured tag DSSS transmission at 0 dBm power with the tag placed at 1 m from the measurement antenna. Special attention has to be given to spurious emissions, e.g. insufficiently shielded computer monitors. The electromagnetic test conditions of
37、the measurements shall be checked by performing the measurements with and without a tag in the field. 4.2.4 Total measurement uncertainty The test equipment will introduce a level of measurement uncertainty. For example, the frequency accuracy of the local oscillator used in RF down-converter will a
38、dd uncertainty to the calculated frequency accuracy of the measured RF. The specifications of the test equipment used shall be included in the report. 4.3 Tag UWB RF transmission tests 4.3.1 General The DUT shall be an RTLS tag. The measurement equipment shall consist of an anechoic chamber as descr
39、ibed in Annex A, a calibrated measuring antenna, a spectrum analyser such as an Agilent E4407B 1) , and a suitable receiver consisting of an RF amplifier, demodulator capable of 1 ns resolution, and digital circuitry. Figure 1 shows the required test equipment setup. Figure 1 Setup of equipment for
40、UWB RF test 4.3.2 T est Objecti v e The objective of this test is to verify that the RTLS tag provides the appropriate UWB modulation waveform required for proper system performance. 4.3.3 Test procedure The tag shall be configured to transmit the maximum length UWB blink that it is intended to be s
41、ent when deployed. The post processing software shall produce metrics for the following parameters to verify compliance of the tag. 1) The Agilent E4407B is an example of a suitable product available commercially. This information is given for the convenience of users of this Technical Report and do
42、es not constitute an endorsement by ISO of this product. ISO/IEC 2015 All rights reserved 3BS ISO/IEC 24769-61:2015ISO/IEC 24769-61:2015(E) 4.3.4 Test measurements and requirements 4.3.4.1 Spectral mask The spectral mask shall be in accordance with ISO/IEC 24730-61:2013, 5.4.8.3, for the channel or
43、channels in which the tag operates. The channels are 0, 1, or 2 as described in ISO/IEC 24730-61:2013, 5.3. 4.3.4.2 Transmit power The transmitted power shall be calculated based on the power received at the measurement antenna. The calculated power shall be within 2.0 dB of the DUT specified transm
44、it power. Transmit power and spectral density mask shall conform to regulatory constraints for the intended operating region, as discussed in ISO/IEC 24730-61:2013, 5.2. 4.3.4.3 Chip rate The chip rate of the tag shall be in accordance with the mode of tag operation. There are 3 modes, Basic Extende
45、d and Long range. Those modes are described in ISO/IEC 24730-61:2013, 5.2. Accuracy of the chip rate shall be compliant with the requirement that less than 11 ns of drift shall occur over a 128 symbol period as specified in ISO/IEC 24730-61:2013, 5.4.8.2. 4.3.4.4 Message content and structure The po
46、st processing software shall verify the selected message format including PHY, payload, and postamble containing location enhancing information if applicable are in compliance with the format specified in ISO/IEC 24730-61. The PHY format as well as the optional LEIP are specified in ISO/IEC 24730-61
47、:2013, Clause 5, and it is dependent on the mode selected. The Payload format is specified in ISO/IEC 24730-61:2013, Clause 6, and is independent of the mode selected. 4.3.5 Test report The test report shall contain the tag distance to the measurement antenna and all of the measured data. A brief na
48、rrative of the post processing software used to evaluate the captured signal shall also be included as an annex to the data. As mentioned before (in 4.2.4), the report shall also contain the uncertainties of the measurement equipment. 4.4 Receiver UWB RF tests 4.4.1 General The DUT shall be an RTLS
49、RF receiver operating in one or more of the Channels defined in ISO/IEC 24730- 61:2013, 5.3. Example measurement equipment could consist of a tag generator capable of producing the UWB signal in one or more channels frequencies, and capable of generating the PHY, payload and LEIP signals in all 3 modes of operation as shown in Figure 2.4 ISO/IEC 2015 All rights reservedBS ISO/IEC 24769-61:2015ISO/IEC 24769-61:2015(E) Figure 2 Setup of equipment
