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    BS ISO IEC 24770-62-2015 Information technology Real-time locating system (RTLS) device performance test methods High rate pulse repetition frequency Ultra Wide Band (UWB) air inte.pdf

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    BS ISO IEC 24770-62-2015 Information technology Real-time locating system (RTLS) device performance test methods High rate pulse repetition frequency Ultra Wide Band (UWB) air inte.pdf

    1、BSI Standards PublicationBS ISO/IEC 24770-62:2015Information technology Real-time locating system(RTLS) device performance test methodsPart 62: High rate pulse repetitionfrequency Ultra Wide Band (UWB) airinterfaceBS ISO/IEC 24770-62:2015 BRITISH STANDARDNational forewordThis British Standard is the

    2、 UK implementation of ISO/IEC24770-62:2015.The UK participation in its preparation was entrusted to TechnicalCommittee IST/34, Automatic identification and data capturetechniques.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does no

    3、t purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 82933 8ICS 35.040Compliance with a British Standard cannot confer immunity fromlegal obligati

    4、ons.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 October 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO/IEC 24770-62:2015Information technology Real-time locating system (RTLS) device performance te

    5、st methods Part 62: High rate pulse repetition frequency Ultra Wide Band (UWB) air interfaceTechnologies de linformation Mthodes dessai des performances du dispositif des systmes de localisation en temps rel (RTLS) Partie 62: Mthodologie de test de interface arienne ultra large bande (UWB) impulsion

    6、s haute frquence de rptitionINTERNATIONAL STANDARDISO/IEC24770-62Reference numberISO/IEC 24770-62:2015(E)First edition2015-10-01 ISO/IEC 2015BS ISO/IEC 24770-62:2015ii ISO/IEC 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO/IEC 2015, Published in SwitzerlandAll rights reserved. Unless other

    7、wise 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 either ISO at the address b

    8、elow or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgISO/IEC 24770-62:2015(E)BS ISO/IEC 24770-62:2015ISO/IEC 24770-62:2015(E)Foreword ivIntroducti

    9、on v1 Scope . 12 Normative references 13 Terms, definitions and abbreviated terms 13.1 Terms and definitions . 13.2 Abbreviated terms . 14 General 24.1 Performance requirements 24.1.1 Preface 24.1.2 Location accuracy . 24.1.3 Tag capacity 24.1.4 Location latency . 24.1.5 Tag orientation 24.1.6 Syste

    10、m range and packet error rates 24.2 Default conditions applicable to the test methods 34.2.1 Preface 34.2.2 Test environment 34.2.3 Default tolerance 34.2.4 System Logging 35 Performance tests for ISO/IEC 24730-62 . 35.1 System locate performance 35.1.1 Preface 35.1.2 Test objective 35.1.3 Test set

    11、up 35.1.4 Test procedure . 45.1.5 Test measurements and requirements . 55.1.6 Test report . 65.2 Tests for mandatory UWB tag to reader air interface . 75.2.1 Test objective 75.2.2 Test set up 75.2.3 Test procedure . 75.2.4 Test measurements and requirements . 75.2.5 Test report . 75.3 Tests for opti

    12、onal two-way-ranging air interface 85.3.1 Preface 85.3.2 Test objective 85.3.3 Test set up 85.3.4 Test procedure . 85.3.5 Test measurements and requirements . 86 Statistical relevance of results . 9 ISO/IEC 2015 All rights reserved iiiContents PageBS ISO/IEC 24770-62:2015ISO/IEC 24770-62:2015(E)Fore

    13、wordISO (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 technical c

    14、ommittees 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 part in t

    15、he 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 approval c

    16、riteria 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 subject of p

    17、atent 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/patents).Any trade

    18、 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 principles in the Tech

    19、nical 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 24770 consists of the following parts, unde

    20、r 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: High rate pulse repetition frequency Ultra Wide Band (UWB) air interfaceThe following part is under

    21、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)IntroductionISO/IEC 24730-62 defines an air interface for Real Time Locating Systems (RTLS) devices used in asset management applications.This I

    22、nternational 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 in order to establish whether it conforms to ISO/IEC 24730-62. ISO/IEC 2015 All rights reserved vBS ISO/IE

    23、C 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) air interface1 ScopeThis International Standard defines the test methods for determining the performance

    24、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 24730-62 for specific applications. This International Standard does not apply to the testing in relation to regu

    25、latory 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 readers. Unless otherwise specified, the tests in this International Standard apply exclusively to RTLS equi

    26、pment defined in ISO/IEC 24730-62.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referen

    27、ced document (including any amendments) applies.ISO/IEC 19762-1, Information technology Automatic identification and data capture (AIDC) techniques Harmonized vocabulary Part 1: General terms relating to AIDCISO/IEC 19762-3, Information technology Automatic identification and data capture (AIDC) tec

    28、hniques 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 frequency Ultra Wide Band (UWB) air interfaceISO/IEC 24769-62, Information technology Real Time Locating System (R

    29、TLS) device conformance test methods Part 62: High rate pulse repetition frequency Ultra Wide Band (UWB) air interface3 Terms, definitions and abbreviated terms3.1 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO/IEC 19762-1 and ISO/IEC 19762-3 apply.3.2

    30、 Abbreviated termsPRF pulse repetition frequencyRF radio frequencyINTERNATIONAL STANDARD ISO/IEC 24770-62:2015(E) ISO/IEC 2015 All rights reserved 1BS ISO/IEC 24770-62:2015ISO/IEC 24770-62:2015(E)RFID radio frequency identificationRTLS real time locating systemTDOA time difference of arrivalTOA time

    31、-of-arrivalUWB ultra wide band4 General4.1 Performance requirements4.1.1 PrefaceThis part of ISO/IEC 24770 specifies a series of tests to determine the performance characteristics of RTLS equipment relative to the ISO/IEC 24730-62 air interfaces. The results of these tests can be used to determine t

    32、he suitability of RTLS equipment for applications.4.1.2 Location accuracyThe primary function of RTLS equipment is to locate tags within the area covered by the readers. Location accuracy determines the primary performance criteria of an RTLS. Location accuracy can be characterized by comparing the

    33、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 allowable error. The location tests specified in this standard are confined to line-of-sight situations. Although this will not be applicable to a

    34、ll applications, the complexity of all the variations of blockage and partial blockage are beyond the scope of this test.4.1.3 Tag capacityA RTLS must 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 det

    35、ermine a systems tag capacity. The system must be able to provide location information for an applications peak tag blink density.4.1.4 Location latencyThe latency between when the tag blink is transmitted and when the RTLS equipment can provide accurate location information determines the suitabili

    36、ty of the equipment for the application.4.1.5 Tag orientationThe ability of an RTLS to provide real time location information should be independent 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.

    37、6 System range and packet error ratesThe length of the tag-reader link determines the reader density requirements and also affects system capacity. The packet error rate will determine how often the equipment can successfully provide accurate location information for the tag.The range determines the

    38、 usability of the system in meeting the applications requirements.2 ISO/IEC 2015 All rights reservedBS ISO/IEC 24770-62:2015ISO/IEC 24770-62:2015(E)4.2 Default conditions applicable to the test methods4.2.1 PrefaceThese conditions apply to all tests.4.2.2 Test environmentTesting shall take place in

    39、an environment typical to that of the desired application. Testing can be performed indoors or outdoors with temperature and humidity profiles similar to that expected in the desired application. The RF noise floor at the test location should also represent typical conditions expected within the des

    40、ired application.4.2.3 Default toleranceUnless otherwise 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.4.2.4 System LoggingThe RTLS should provide sufficient data logging to allo

    41、w determination of the number of packets received and sent, but this is not absolutely required.5 Performance tests for ISO/IEC 24730-625.1 System locate performance5.1.1 PrefaceSubclause 5.1 includes tests for location performance.5.1.2 Test objectiveThe objective of this test is to evaluate the sy

    42、stem locate performance characteristics of the ISO/IEC 24730-62 equipment.5.1.3 Test set upThe readers shall be connected 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 inst

    43、alled as it would for the desired application. If that is not possible, then the equipment shall be configured as shown in 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

    44、 separation of the fixed (anchor) reader nodes is dependent on the ability of their receivers to receive the tags transmissions. 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 diago

    45、nal then should be chosen to be the range of successful tag-to-anchor communications. For ISO/IEC 24730-62 compliant tags 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

    46、(D) Table 1 gives an example of some typical maximum ranges that might be expected. In testing the performance of a particular 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

    47、3BS ISO/IEC 24770-62:2015ISO/IEC 24770-62:2015(E)Table 1 some typical operating rangesData Rate Typical max ranges110 kbps 150 m to 250 m850 kbps 90 m to 150 m6,81 Mbps 25 m to 55 mIn addition to standalone tags, several tags mounted on the applications locatable assets (or items of comparable size

    48、and composition) shall be used to evaluate locate performance.Figure 1 Setup of equipment for RTLS locate accuracy test5.1.4 Test procedureThe 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 24770-62:2

    49、015ISO/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 should be computed. This blink rate is given by the formula:tbrtattmabr= 15,wheretbr is the test tag blink rate;ta is the total tags to be in the equivalent application area;tt is the total tags in the test area;mabr is maximum blink rate expected in the applicatio


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