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1、INTERNATIONAL STANDARD IS0 17433 Second edition 2003-02-1 5 Space data and information transfer systems - Packet telemetry services Systmes de transfert des informations et donnes spatiales - Services de tlmesure par paquets Reference number IS0 17433:2003(E) 0 IS0 2003 IS0 17433:2003(E) PDF disclai
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4、file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IS0 member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. O IS02003 All rig
5、hts reserved. Unless othetwise 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 IS0 at the address below or ISOs member body in the country of th
6、e requester. IS0 copyright office Case postale 56 CH-I211 Geneva 20 Tel. + 41 22 749 O 1 11 Fax + 41 22 749 O 9 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii O IS0 2003 -All rights reserved IS0 17433:2003(E) Foreword IS0 (the International Organization for Standardization) i
7、s a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represe
8、nted on that committee. International organizations, governmental and non-governmental, in liaison with SO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are dr
9、afted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International S
10、tandard requires approval by at least 75 % of the member 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. IS0 shall not be held responsible for identifying any or all such patent rights. International Standar
11、d IS0 17433 was prepared by the Consultative Committee for Space Data Systems (CCSDS) (as CCSDS 103.0-B-2, June 2001) and was adopted (without modifications except those stated in Clause 2 of this International Standard) by Technical Committee ISOTC 20, Aircraft and space vehicles, Subcommittee SC 1
12、3, Space data and information transfer systems. This second edition cancels and replaces the first edition (IS0 17433:2001), which has been technically revised. O IS0 2003 -All rights reserved iii INTERNATIONAL STANDARD IS0 17433:2003(E) Space data and information transfer systems - Packet telemetry
13、 services 1 Scope This International Standard specifies the requirements for packet telemetry services in space data and information transfer systems. The purpose of this document is to establish common requirements for the services provided between protocol layers of the space to ground link. It do
14、es not define the extension of these services across distributed components of the spacecraft or ground data systems. The scope and field of application are furthermore detailed in subclauses 1.2 and 1.3 of the enclosed CCSDS publication. 2 Requirements Requirements are the technical recommendations
15、 made in the following publication (reproduced on the following pages), which is adopted as an International Standard: CCSDS 103.0-B-2, June 2001, Recommendation for space data system standards - Packet telemetry service specification. For the purposes of international standardization, the modificat
16、ions outlined below shall apply to the specific clauses and paragraphs of publication CCSDS 103.0-B-2. Pages i to v This part is information which is relevant to the CCSDS publication only. Page 1-4: Add the following information to the references indicated: I Document CCSDS 102.0-B-5, November 2000
17、, is equivalent to IS0 1341 9:2003. 2 Document CCSDS 1 01.0-B-5, June 2001, is equivalent to IS0 11754:2003. Page B- 1 Update the following references as indicated: B4 B5 IS0 7498-3: 1989 has been cancelled and replaced by ISO/IEC 7498-3: 1997. ISO/IEC 10731 (1991 DIS) has been published as ISO/IEC
18、10731:1994. O IS0 2003 -All rights reserved 1 IS0 17433:2003(E) 3 Revision of publication CCSDS 103.0-B-2 It has been agreed with the Consultative Committee for Space Data Systems that Subcommittee ISOTC 20/SC 13 will be consulted in the event of any revision or amendment of publication CCSDS 103.0-
19、B-2. To this end, NASA will act as a liaison body between CCSDS and SO. 2 O IS0 2003 -All rights reserved IS0 17433:2003(E) Consultative Committee for Space Data Systems RECOMMENDATION FOR SPACE DATA SYSTEM STANDARDS PACKET TELEMETRY SERVICE S P ECI FI CATI ON CCSDS 103.0-B-2 BLUE BOOK June 2001 O I
20、S0 2003 -All rights reserved 3 IS0 17433:2003(E) (Blank page) 4 O IS0 2003 -All rights reserved IS0 17433:2003(E) CCSDS RECOMMENDATION FOR PACKET TELEMETRY SERVICE SPECIFICATION AUTHORITY Issue: Blue Book, Issue 2 Date: June 2001 Location: Oxfordshire, UJS This document has been approved for publica
21、tion by the Management Council of the Consultative Committee for Space Data Systems (CCSDS) and represents the consensus technical agreement of the participating CCSDS Member Agencies. The procedure for review and authorization of CCSDS Recommendations is detailed in reference Bl, and the record of
22、Agency participation in the authorization of this document can be obtained fi-om the CCSDS Secretariat at the address below. This Recommendation is published and maintained by: CCSDS Secretariat Program Integration Division (Code MT) National Aeronautics and Space Administration Washington, DC 20546
23、, USA CCSDS 103.0-B-2 O IS0 2003 -All rights reserved Page i June 2001 5 IS0 17433:2003(E) CCSDS RECOMMENDATION FOR PACKET TELEMETRY SERVICE SPECIFICATION STATEMENT OF INTENT The Consultative Committee for Space Data Systems (CCSDS) is an organization officially established by the management of memb
24、er space Agencies. The Committee meets periodically to address 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 Recommen
25、dations and are not considered binding on any Agency. This Recommendation is issued by, and represents the consensus of, the CCSDS Plenary body. Agency endorsement of this Recommendation is entirely voluntary. Endorsement, however, indicates the following understandings: o Whenever an Agency establi
26、shes a CCSDS-related standard, this standard will be in accord with the relevant Recommendation. Establishing such a standard does not preclude other provisions which an Agency may develop. o Whenever an Agency establishes a CCSDS-related standard, the Agency will provide other CCSDS member Agencies
27、 with the following information: - The standard itself. - The anticipated date of initial operational capability. - The anticipated duration of operational service. o Specific service arrangements shall be made via memoranda of agreement. Neither this Recommendation nor any ensuing standard is a sub
28、stitute for a memorandum of agreement. No later than five years fi-om its date of issuance, this Recommendation 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 direct
29、ions; or, (3) be retired or canceled. In those instances when a new version of a Recommendation is issued, existing CCSDS- related Agency standards and implementations are not negated or deemed to be non-CCSDS compatible. It is the responsibility of each Agency to determine when such standards or im
30、plementations are to be modified. Each Agency is, however, strongly encouraged to direct planning for its new standards and implementations towards the later version of the Recommendation. CCSDS 103.0-B-2 6 Page ii June 200 1 O IS0 2003 -All rights reserved IS0 17433:2003(E) CCSDS RECOMMENDATION FOR
31、 PACKET TELEMETRY SERVICE SPECIFICATION FOREWORD This document is a technical Recommendation for use in developing packetized telemetry systems and has been prepared by the Consultative Committee for Space Data Systems (CCSDS). The Packet Telemetry Services described herein are intended for spacecra
32、ft-to- ground data communication within missions that are cross-supported between Agencies of the CCSDS. This Recommendation establishes a common framework and provides a common basis for the data services of spacecraft telemetry systems. It allows implementing organizations within each Agency to pr
33、oceed coherently with the development of compatible derived Standards for the flight and ground systems that are within their cognizance. Derived Agency Standards may implement only a subset of the optional features allowed by the Recommendation and may incorporate features not addressed by the Reco
34、mmendation. Through the process of normal evolution, it is expected that expansion, deletion or modification to this document may occur. This Recommendation is therefore subject to CCSDS document management and change control procedures which are defined in reference Bi. CCSDS 103.0-B-2 O IS0 2003 -
35、All rights reserved Page iii June 2001 7 IS0 17433:2003(E) CCSDS RECOMMENDATION FOR PACKET TELEMETRY SERVICE SPECIFICATION At time of publication, the active Member and Observer Agencies of the CCSDS were: Member Agencies - Agenzia Spaziale Italiana (ASI)/Italy. - British National Space Centre (BNSC
36、)/United Kingdom. - Canadian Space Agency (CSA)/Canada. - Centre National dEtudes Spatiales (CNES)/France. - Deutsches Zentrum fi Luft- und Raumfahrt e.V. (DLR)/Germany. - European Space Agency (ESA)/Europe. - Instituto Nacional de Pesquisas Espaciais (INPE)/Brazil. - National Aeronautics and Space
37、Administration (NASA)/SA. - National Space Development Agency of Japan (NASDA)/Japan. - Russian Space Agency (RSA)/Russian Federation. Observer Agencies - Austrian Space Agency (ASA)/Austria. - Central Research Institute of Machine Building (TsNIIMash)/Russian Federation. - Centro Tecnico Aeroespaci
38、al (CTA)/Brazil. - Chinese Academy of Space Technology (CAST)/China. - Commonwealth Scientific and Industrial Research Organization (CSIRO)/Australia. - Communications Research Centre (CRC)/Canada. - Communications Research Laboratory (CRL)/Japan. - Danish Space Research Institute (DSRI)/Denmark. -
39、European Organization for the Exploitation of Meteorological Satellites (EUMETS AT)/Europe . - European Telecommunications Satellite Organization (EUTELSAT)/Europe. - Federal Service of Scientific, Technical - section 3 describes the data that is transferred fi-om data sources in space to data sinks
40、 on the ground by the packet Telemetry Services; CCSDS 103.0-B-2 Page 1-1 June 2001 O IS0 2003 -All rights reserved 13 IS0 17433:2003(E) CCSDS RECOMMENDATION FOR PACKET TELEMETRY SERVICE SPECIFICATION - section 4 defines Space Transfer services, which support the transfer of data units (created by a
41、pplications) by means of Virtual Channels; - section 5 defines Virtual Channel Access services, which provide for the transfer of Virtual Channel, and certain application data units, in a single stream of fixed-length Transfer Frames; - section 6 defines Channel Access Coding services, which support
42、 the transfer of a stream of Transfer Frames over a noisy channel; - annex A lists acronyms and abbreviations used in this text along with their definitions; - annex B lists informative references; - annex C provides a brief tutorial on OS1 service terminology. 1.6 CONVENTIONS AND DEFINITIONS 1.6.1
43、DEFINITIONS FROM REFERENCED DOCUMENTS The definitions below were adapted fi-om references B3, B4, and B5. Concepts related to these terms are discussed in section 2 and in annex C of this Recommendation. association: a cooperative relationship among entities in the same layer. blocking: a protocol f
44、unction that maps multiple service-data-units into one protocol-data-unit. multiplexing: a protocol function that uses one association in the layer below to support more than one association for users of the protocol. one-way communication: data communication in one pre-assigned direction. primitive
45、, service primitive: an abstract, atomic, implementation-independent representation of an interaction between a service-user and its service-provider. protocol: communication behavior of layer entities in the performance of communication functions. a set of rules and formats (semantic and syntactic)
46、 which determines the protocol-data-unit (lDU): a unit of data specified in a protocol and consisting of protocol- control-information and possibly user data. segmentation: a protocol function that maps one service-data-unit into multiple PDUs. service: a capability of a layer, and the layers beneat
47、h it (a service-provider), which is provided to service-users at the boundary between the service-provider and the service-users. NOTE - The service defines the external behavior of the service-provider, independent of the mechanisms used to provide that behavior. Layers, layer entities, application
48、- service-elements, etc. are components of a service-provider. CCSDS 103.0-B-2 Page 1-2 June 2001 14 O IS0 2003 -All rights reserved IS0 17433:2003(E) CCSDS RECOMMENDATION FOR PACKET TELEMETRY SERVICE SPECIFICATION service-access-point (SAP): the point at which services are provided by an entity in
49、a layer to an entity in the layer above. service-data-unit (SDU): an amount of information whose identity is preserved when transferred between peer entities in a given layer and which is not interpreted by the supporting entities in that layer. service-provider: an abstract representation of the totality of those entities which provide a service to service-users; i.e., a layer, and the layers beneath it. service-user: an entity in a single system that makes use of a service. NOTE - The service-user makes use of the service through a collection of service prim
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