1、BSI Standards Publication BS ISO/IEC 24770-62:2015 Information technology Real-time locating system (RTLS) device performance test methods Part 62: High rate pulse repetition frequency Ultra Wide Band (UWB) air interfaceBS ISO/IEC 24770-62:2015 BRITISH STANDARD National foreword This British Standar
2、d is the UK implementation of ISO/IEC 24770-62:2015. 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. This publ
3、ication 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 82933 8 ICS 35.040 Compliance with a British Standard cannot confer immuni
4、ty 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 24770-62:2015 Information technology Real- time locating system
5、(RTLS) device performance test methods Part 62: High rate pulse repetition frequency Ultra Wide Band (UWB) air interface Technologies de linformation Mthodes dessai des performances du dispositif des systmes de localisation en temps rel (RTLS) Partie 62: Mthodologie de test de interface arienne ultr
6、a large bande (UWB) impulsions haute frquence de rptition INTERNATIONAL STANDARD ISO/IEC 24770-62 Reference number ISO/IEC 24770-62:2015(E) First edition 2015-10-01 ISO/IEC 2015 BS ISO/IEC 24770-62:2015ii ISO/IEC 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2015, Published in Switze
7、rland All rights 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 req
8、uested from either 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 24770-62:2015(E)BS ISO/IEC 24770-62:20
9、15ISO/IEC 24770-62:2015(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 . 1 4 General 2 4.1 Performance requirements 2 4.1.1 Preface 2 4.1.2 Location accuracy . 2 4.1.3 Tag capacit
10、y 2 4.1.4 Location latency . 2 4.1.5 Tag orientation 2 4.1.6 System range and packet error rates 2 4.2 Default conditions applicable to the test methods 3 4.2.1 Preface 3 4.2.2 Test environment 3 4.2.3 Default tolerance 3 4.2.4 System Logging 3 5 Performance tests for ISO/IEC 24730-62 . 3 5.1 System
11、 locate performance 3 5.1.1 Preface 3 5.1.2 Test objective 3 5.1.3 Test set up 3 5.1.4 Test procedure . 4 5.1.5 Test measurements and requirements . 5 5.1.6 Test report . 6 5.2 Tests for mandatory UWB tag to reader air interface . 7 5.2.1 Test objective 7 5.2.2 Test set up 7 5.2.3 Test procedure . 7
12、 5.2.4 Test measurements and requirements . 7 5.2.5 Test report . 7 5.3 Tests for optional two-way-ranging air interface 8 5.3.1 Preface 8 5.3.2 Test objective 8 5.3.3 Test set up 8 5.3.4 Test procedure . 8 5.3.5 Test measurements and requirements . 8 6 Statistical relevance of results . 9 ISO/IEC 2
13、015 All rights reserved iii Contents PageBS ISO/IEC 24770-62:2015ISO/IEC 24770-62:2015(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 memb
14、ers 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 technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international org
15、anizations, 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 technical committee, ISO/IEC JTC 1. The procedures used to develop this document and those intended for its further mai
16、ntenance are described in the ISO/IEC Directives, Part 1. In particular the different 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). Attenti
17、on 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 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 Introd
18、uction and/or on the ISO list of patent declarations received (see www.iso.org/patents). 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 c
19、onformity assessment, as well as information about ISOs adherence to the WTO principles 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, Autom
20、atic identification and data capture techniques. ISO/IEC 24770 consists of the following parts, under the general title Information technology Real- time locating systems (RTLS) device conformance test methods: Part 61: Low rate pulse repetition frequency Ultra Wide Band (UWB) air interface Part 62:
21、 High rate pulse repetition frequency Ultra Wide Band (UWB) air interface The following part is under preparation: Part 5: Chirp Spread Spectrum (CSS) at 2,4 GHz air interfaceiv ISO/IEC 2015 All rights reservedBS ISO/IEC 24770-62:2015ISO/IEC 24770-62:2015(E) Introduction ISO/IEC 24730-62 defines an
22、air interface for Real Time Locating Systems (RTLS) devices used in asset management applications. This International Standard provides test methods for measuring performance of equipment compliant with ISO/IEC 24730-62. ISO/IEC IS 24769-62 contains all measurements required to be made on a product
23、in order to establish whether it conforms to ISO/IEC 24730-62. ISO/IEC 2015 All rights reserved vBS ISO/IEC 24770-62:2015BS ISO/IEC 24770-62:2015Information technology Real-time locating system (RTLS) device performance test methods Part 62: High rate pulse repetition frequency Ultra Wide Band (UWB)
24、 air interface 1 Scope This International Standard defines the test methods for determining the performance characteristics of Ultra Wide Band (UWB) real time locating system (RTLS) equipment including tags and readers which are applicable to the selection of equipment that conforms to ISO/IEC 24730
25、-62 for specific applications. This International Standard does not apply to the testing in relation to regulatory or similar requirements. The RTLS equipment performance parameters included in this International Standard only include the Ultra Wide Band (UWB) radio frequencies link between tags and
26、 readers. Unless otherwise specified, the tests in this International Standard apply exclusively to RTLS equipment defined in ISO/IEC 24730-62. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application.
27、For dated 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 te
28、rms relating 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 24730-62, Information technology Real time locating systems (RTLS) Part 62: High rate pulse repetition
29、frequency Ultra Wide Band (UWB) air interface ISO/IEC 24769-62, Information technology Real Time Locating System (RTLS) device conformance test methods Part 62: High rate pulse repetition frequency Ultra Wide Band (UWB) air interface 3 T erms, d efinitions and abbr e viat ed t erms 3.1 T erms and de
30、finiti ons For the purposes of this document, the terms and definitions given in ISO/IEC 19762-1 and ISO/IEC 19762-3 apply. 3.2 A bbr e viat ed t erms PRF pulse repetition frequency RF radio frequency INTERNATIONAL ST ANDARD ISO/IEC 24770-62:2015(E) ISO/IEC 2015 All rights reserved 1BS ISO/IEC 24770
31、-62:2015ISO/IEC 24770-62:2015(E) RFID radio frequency identification RTLS real time locating system TDOA time difference of arrival TOA time-of-arrival UWB ultra wide band 4 General 4.1 Performance requirements 4.1.1 Preface This part of ISO/IEC 24770 specifies a series of tests to determine the per
32、formance characteristics of RTLS equipment relative to the ISO/IEC 24730-62 air interfaces. The results of these tests can be used to determine the suitability of RTLS equipment for applications. 4.1.2 Location accuracy The primary function of RTLS equipment is to locate tags within the area covered
33、 by the readers. Location accuracy determines the primary performance criteria of an RTLS. Location accuracy can be characterized by comparing the systems calculated location for a given set of tags to the actual location of the tags. The system must be able to locate tags to within the applications
34、 allowable error. The location tests specified in this standard are confined to line-of-sight situations. Although this will not be applicable to all applications, the complexity of all the variations of blockage and partial blockage are beyond the scope of this test. 4.1.3 Tag capacity A RTLS must
35、typically locate a large number of tags. The number of tag blinks per second that can be processed and located through the readers can be used to determine a systems tag capacity. The system must be able to provide location information for an applications peak tag blink density. 4.1.4 Location laten
36、cy The latency between when the tag blink is transmitted and when the RTLS equipment can provide accurate location information determines the suitability of the equipment for the application. 4.1.5 Tag orientation The ability of an RTLS to provide real time location information should be independent
37、 of the orientation of the tag. The location reported by the RTLS should not change as the tag is rotated in any orientation relative to the readers. 4.1.6 System range and packet error rates The length of the tag-reader link determines the reader density requirements and also affects system capacit
38、y. The packet error rate will determine how often the equipment can successfully provide accurate location information for the tag. The range determines the usability of the system in meeting the applications requirements.2 ISO/IEC 2015 All rights reservedBS ISO/IEC 24770-62:2015ISO/IEC 24770-62:201
39、5(E) 4.2 Default c onditions applicable t o the t est methods 4.2.1 Preface These conditions apply to all tests. 4.2.2 Test environment Testing shall take place in an environment typical to that of the desired application. Testing can be performed indoors or outdoors with temperature and humidity pr
40、ofiles similar to that expected in the desired application. The RF noise floor at the test location should also represent typical conditions expected within the desired application. 4.2.3 Default tolerance Unless otherwise specified, a default tolerance of 5 % shall be applied to the quantity values
41、 given to specify the characteristics of the test equipment and the test method procedures. 4.2.4 System Logging The RTLS should provide sufficient data logging to allow determination of the number of packets received and sent, but this is not absolutely required. 5 Performance tests for ISO/IEC 247
42、30-62 5.1 System locate performance 5.1.1 Preface Subclause 5.1 includes tests for location performance. 5.1.2 T est objecti v e The objective of this test is to evaluate the system locate performance characteristics of the ISO/IEC 24730-62 equipment. 5.1.3 Test set up The readers shall be connected
43、 to antennas with adequate width of field to cover the test area with 4 readers. It is preferred that the RTLS locate performance characteristics be evaluated with the system installed as it would for the desired application. If that is not possible, then the equipment shall be configured as shown i
44、n Figure 1, with four readers at the corners of a square. The size of this square as defined by diagonal (D) is dependent on the operating mode of the devices. In a TDOA system the separation of the fixed (anchor) reader nodes is dependent on the ability of their receivers to receive the tags transm
45、issions. This is not a direct feature of the air interface protocol but is rather the result of the implementation in the receiver of the physical layer protocol. The size of diagonal then should be chosen to be the range of successful tag-to-anchor communications. For ISO/IEC 24730- 62 compliant ta
46、gs this will depend on data rate and preamble length choices, on operating channel and bandwidth, and on implementation choices in the receiver. As a guideline to choosing diagonal (D) Table 1 gives an example of some typical maximum ranges that might be expected. In testing the performance of a par
47、ticular system the equipment manufacturer should be able to advise the maximum expected operating range for the system operating mode being tested. ISO/IEC 2015 All rights reserved 3BS ISO/IEC 24770-62:2015ISO/IEC 24770-62:2015(E) T a b l e 1 s o m e t y p i c a l o p e r a t i n g r a n g e s Data
48、Rate Typical max ranges 110 kbps 150 m to 250 m 850 kbps 90 m to 150 m 6,81 Mbps 25 m to 55 m In addition to standalone tags, several tags mounted on the applications locatable assets (or items of comparable size and composition) shall be used to evaluate locate performance. Figure 1 Setup of equipm
49、ent for RTLS locate accuracy test 5.1.4 Test procedure The tag shall be configured to transmit at the desired UWB signalling mode as defined in ISO/IEC 24730-62.4 ISO/IEC 2015 All rights reservedBS ISO/IEC 24770-62:2015ISO/IEC 24770-62:2015(E) The test shall include an evaluation of the total blink capacity as a function of blink rate for the test tags within the test area. In order to be greater than the maximum expected capacity, a test tag blink rate
