1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 18424:2013Space data and informationtransfer systems XMLTelemetric and CommandExchange (XTCE)BS ISO 18424:2013 BRITISH STANDARDNational forewordThis British Standard is th
2、e UK implementation of ISO 18424:2013.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/68/-/7, Space systems and operations - Space dataand information transfer systems.A list of organizations represented on this committee can beobtained on request to its secretary.Thi
3、s publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 80289 8ICS 49.140Compliance with a British Standard cannot confer immuni
4、ty fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 June 2013.Amendments issued since publicationDate Text affectedBS ISO 18424:2013Reference numberISO 18424:2013(E)ISO 2013INTERNATIONAL STANDARD ISO18424First edition20
5、13-06-01Space data and information transfer systems XML Telemetric and Command Exchange (XTCE) Systmes de transfert des informations et donnes spatiales change XML des tlmesures et commandes (XTCE) BS ISO 18424:2013ISO 18424:2013(E) COPYRIGHT PROTECTED DOCUMENT ISO 2013 All rights reserved. Unless o
6、therwise 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 addre
7、ss 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 2013 All rights reservedBS ISO 18424:2013ISO 18424:2013(E) ISO 201
8、3 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested i
9、n a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commis
10、sion (IEC) on all matters of electrotechnical standardization. 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 criteria needed for the different types of ISO documents sh
11、ould be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identi
12、fying 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. www.iso.org/patents Any trade name used in this document is information given for the convenience of
13、 users and does not constitute an endorsement. ISO 18424 was prepared by the Consultative Committee for Space Data Systems (CCSDS) (as CCSDS 660.0-B-1, October 2007) and was adopted (without modifications except those stated in Clause 2 of this International Standard) by Technical Committee ISO/TC 2
14、0, Aircraft and space vehicles, Subcommittee SC 13, Space data and information transfer systems. BS ISO 18424:2013BS ISO 18424:2013INTERNATIONAL STANDARD ISO 18424:2013(E) ISO 2013 All rights reserved 1Space data and information transfer systems XML Telemetric and Command Exchange (XTCE) 1 Scope Thi
15、s International Standard addresses the need for a standardized information model capable of supporting Telemetry/Telecommand (TM/TC) definitions across the widest possible range of space domain activities. The goal is to allow TM/TC definitions to be exchanged between different organizations and sys
16、tems, often at the boundaries of mission phases, without the need for customized import/export, re-validation, or even re-implementation of mission databases. The scope of this International Standard is limited to the satellite telemetry and commanding meta-data constructs necessary to perform satel
17、lite and payload data processing. This International Standard includes the meta-data needed to: Define the structure and sequence of both CCSDS packets and TDM frames; Define the data manipulation required for packaging and unpacking of individual data items; Describe command data including command
18、identification, argument specification, and validation criteria; Define parameter and command encoding; Define data properties including including default values, validity criteria, and data dependencies. The scope of this International Standard does not extend to: Data distribution mechanisms or ru
19、les; Command and data protocol specifications; RF or analog stream characterization; Data grouping including aggregation and coherent data sets; Data representation (visualization properties); Scheduling configuration properties; Orbital properties; Displays; Flight Software. This International Stan
20、dard addresses only the definition of TM/TC data, but is not a specification for the transfer of live or historical TM/TC data this is a meta-data specification, not a data specification. 2 Requirements Requirements are the technical recommendations made in the following publication (reproduced on t
21、he following pages), which is adopted as an International Standard: CCSDS 660.0-B-1, October 2007, XML Telemetric and Command Exchange (XTCE). BS ISO 18424:2013ISO 18424:2013(E) 2 ISO 2013 All rights reservedFor the purposes of international standardization, the modifications outlined below shall ap
22、ply to the specific clauses and paragraphs of publication CCSDS 660.0-B-1. Pages i to iv This part is information which is relevant to the CCSDS publication only. Page 77 Add the following information to the reference indicated: 7 Document CCSDS 301.0-B-2, April 1990, is equivalent to ISO 11104:2011
23、. 3 Revision of publication CCSDS 660.0-B-1 It has been agreed with the Consultative Committee for Space Data Systems that Subcommittee ISO/TC 20/SC 13 will be consulted in the event of any revision or amendment of publication CCSDS 660.0-B-1. To this end, NASA will act as a liaison body between CCS
24、DS and ISO. BS ISO 18424:2013Recommendation for Space Data System Standards XML TELEMETRIC AND COMMAND EXCHANGE (XTCE) Recommended Standard CCSDS 660.0-B-1 Blue Book October 2007 ISO 18424:2013(E)3 ISO 2013 All rights reservedBS ISO 18424:2013CCSDS RECOMMENDED STANDARD FOR XML TELEMETRIC AND COMMAND
25、 EXCHANGE AUTHORITY Issue: Recommended Standard, Issue 1 Date: October 2007 Location: Washington, DC, USA This document has been approved for publication by the Management Council of the Consultative Committee for Space Data Systems (CCSDS) and represents the consensus technical agreement of the par
26、ticipating CCSDS Member Agencies. The procedure for review and authorization of CCSDS Recommendations is detailed in the Procedures Manual for the Consultative Committee for Space Data Systems, and the record of Agency participation in the authorization of this document can be obtained from the CCSD
27、S Secretariat at the address below. This document is published and maintained by: CCSDS Secretariat Space Communications and Navigation Office, 7L70 Space Operations Mission Directorate NASA Headquarters Washington, DC 20546-0001, USA CCSDS 660.0-B-1 Page i October 2007 ISO 18424:2013(E)4 ISO 2013 A
28、ll rights reservedBS ISO 18424:2013CCSDS RECOMMENDED STANDARD FOR XML TELEMETRIC AND COMMAND EXCHANGE STATEMENT OF INTENT The Consultative Committee for Space Data Systems (CCSDS) is an organization officially established by the management of its members. The Committee meets periodically to address
29、data systems problems that are common to all participants, and to formulate sound technical solutions to these problems. Inasmuch as participation in the CCSDS is completely voluntary, the results of Committee actions are termed Recommended Standards and are not considered binding on any Agency. Thi
30、s Recommended Standard is issued by, and represents the consensus of, the CCSDS members. Endorsement of this Recommendation is entirely voluntary. Endorsement, however, indicates the following understandings: o Whenever a member establishes a CCSDS-related standard, this standard will be in accord w
31、ith the relevant Recommended Standard. Establishing such a standard does not preclude other provisions which a member may develop. o Whenever a member establishes a CCSDS-related standard, that member will provide other CCSDS members with the following information: - The standard itself. - The antic
32、ipated date of initial operational capability. - The anticipated duration of operational service. o Specific service arrangements shall be made via memoranda of agreement. Neither this Recommended Standard nor any ensuing standard is a substitute for a memorandum of agreement. No later than five yea
33、rs from its date of issuance, this Recommended Standard will be reviewed by the CCSDS to determine whether it should: (1) remain in effect without change; (2) be changed to reflect the impact of new technologies, new requirements, or new directions; or (3) be retired or canceled. In those instances
34、when a new version of a Recommended Standard is issued, existing CCSDS-related member standards and implementations are not negated or deemed to be non-CCSDS compatible. It is the responsibility of each member to determine when such standards or implementations are to be modified. Each member is, ho
35、wever, strongly encouraged to direct planning for its new standards and implementations towards the later version of the Recommended Standard. CCSDS 660.0-B-1 Page ii October 2007 ISO 18424:2013(E)5 ISO 2013 All rights reservedBS ISO 18424:2013CCSDS RECOMMENDED STANDARD FOR XML TELEMETRIC AND COMMAN
36、D EXCHANGE FOREWORD Through the process of normal evolution, it is expected that expansion, deletion, or modification of this document may occur. This Recommended Standard is therefore subject to CCSDS document management and change control procedures, which are defined in the Procedures Manual for
37、the Consultative Committee for Space Data Systems. Current versions of CCSDS documents are maintained at the CCSDS Web site: http:/www.ccsds.org/ Questions relating to the contents or status of this document should be addressed to the CCSDS Secretariat at the address indicated on page i. CCSDS 660.0
38、-B-1 Page iii October 2007 ISO 18424:2013(E)6 ISO 2013 All rights reservedBS ISO 18424:2013CCSDS RECOMMENDED STANDARD FOR XML TELEMETRIC AND COMMAND EXCHANGE At time of publication, the active Member and Observer Agencies of the CCSDS were: Member Agencies Agenzia Spaziale Italiana (ASI)/Italy. Brit
39、ish National Space Centre (BNSC)/United Kingdom. Canadian Space Agency (CSA)/Canada. Centre National dEtudes Spatiales (CNES)/France. Deutsches Zentrum fr Luft- und Raumfahrt e.V. (DLR)/Germany. European Space Agency (ESA)/Europe. Federal Space Agency (FSA)/Russian Federation. Instituto Nacional de
40、Pesquisas Espaciais (INPE)/Brazil. Japan Aerospace Exploration Agency (JAXA)/Japan. National Aeronautics and Space Administration (NASA)/USA. Observer Agencies Austrian Space Agency (ASA)/Austria. Belgian Federal Science Policy Office (BFSPO)/Belgium. Central Research Institute of Machine Building (
41、TsNIIMash)/Russian Federation. Centro Tecnico Aeroespacial (CTA)/Brazil. Chinese Academy of Sciences (CAS)/China. Chinese Academy of Space Technology (CAST)/China. Commonwealth Scientific and Industrial Research Organization (CSIRO)/Australia. Danish National Space Center (DNSC)/Denmark. European Or
42、ganization for the Exploitation of Meteorological Satellites (EUMETSAT)/Europe. European Telecommunications Satellite Organization (EUTELSAT)/Europe. Hellenic National Space Committee (HNSC)/Greece. Indian Space Research Organization (ISRO)/India. Institute of Space Research (IKI)/Russian Federation
43、. KFKI Research Institute for Particle terms like minor frame, major frame, or packet are nowhere in this specification other than in examples. Furthermore, the XTCE specification does not itself use any existing Packet or TDM standards (such as CCSDS packet formats, or IRIG-106 minor frame dxestand
44、ards), but it does provide a mechanism to use XTCE to build libraries of available containers that represent these standards. XTCE Version 1.1 Page 6 of 77 CCSDS RECOMMENDED STANDARD FOR XML TELEMETRIC AND COMMAND EXCHANGECCSDS 660.0-B-1 Page 6 October 2007ISO 18424:2013(E)15 ISO 2013 All rights res
45、ervedBS ISO 18424:2013SatelliteorGround EquipmentStream Processing- decryption- convolutional decode- fixed frame sync- variable frame sync w/ bit extraction- PCM conversionParameter Processing- de-randomization- decommutation- de-packetization- bus format conversion- calibration- custom processing-
46、 string conversionStream Processing- encryption- convolutional encode- fixed frame creation- variable frame creation w/ bit insertion- PCM conversion- ternary conversionCommand Processing- randomization- formatting- bus format conversion- constraint checking- authentication- verificationTelemetry Us
47、erTelemetry UserTelemetry UserCommand SourceCommand SourceCommand SourceTlmStream1TlmStreamNSettings forParameterProcessingParametersused for verification,formatting, andconstraint checkingCmdStream1CmdStreamNEmbeddedStreamsFrames CommandsProcessedTelemetryTextCommandsFigure 1 - Telemetric and Comma
48、nd Processing Meta Data Encapsulated in XTCE XML XTCE Version 1.1 Page 7 of 77 CCSDS RECOMMENDED STANDARD FOR XML TELEMETRIC AND COMMAND EXCHANGECCSDS 660.0-B-1 Page 7 October 2007ISO 18424:2013(E)16 ISO 2013 All rights reservedBS ISO 18424:20131 Scope This specification addresses the need for a sta
49、ndardized information model capable of supporting Telemetry/Telecommand (TM/TC) definitions across the widest possible range of space domain activities. The goal is to allow TM/TC definitions to be exchanged between different organizations and systems, often at the boundaries of mission phases, without the need for customized import/export, re-validation, or even re-implementation of mission databases. The scope of this specification is limite
