BS-ISO-14950-2004.pdf
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1、BRITISH STANDARD AEROSPACE SERIES BS ISO 14950:2004 Space systems Unmanned spacecraft operability ICS 49.140 ? Licensed Copy: London South Bank University, London South Bank University, Tue Jan 30 01:34:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS ISO 14950:2004 This British Standard was publish
2、ed under the authority of the Standards Policy and Strategy Committee on 2 April 2004 BSI 2 April 2004 ISBN 0 580 43607 1 National foreword This British Standard reproduces verbatim ISO 14950:2004 and implements it as the UK national standard. The UK participation in its preparation was entrusted to
3、 Technical Committee ACE/68, Space systems and operations, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this documen
4、t may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Us
5、ers are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for chang
6、e, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to vi, pages 1 to 24, an inside back cover and a back cover. The B
7、SI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University, Tue Jan 30 01:34:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Reference nu
8、mber ISO 14950:2004(E) INTERNATIONAL STANDARD ISO 14950 First edition 2004-02-15 Space systems Unmanned spacecraft operability Systmes spatiaux Oprabilit des satellites non habits BS ISO 14950:2004 Licensed Copy: London South Bank University, London South Bank University, Tue Jan 30 01:34:13 GMT+00:
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14、ank University, London South Bank University, Tue Jan 30 01:34:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI IS:05941 O4002(E) I SO 4002 All irthgs ersedevr iii Contents Page Foreword iv 0 Introduction v 0.1 Spacecraft operation v 0.2 Spacecraft operability.v 0.3 Conventions .vi 0.4 Guidelines for a
15、pplicability.vi 1 Scope 1 2 Normative references . 1 3 Terms and definitions. 1 4 Abbreviated terms. 6 5 Autonomy levels . 7 6 General requirements. 8 6.1 Observability . 8 6.2 Commandability 8 6.3 Compatibility . 8 6.4 Security 8 6.5 Safety 8 6.6 Flexibility 9 6.7 Efficiency . 9 6.8 Testability 9 6
16、.9 Applicability matrix. 10 7 Detailed requirements 10 7.1 Spacecraft observability requirements. 10 7.2 Spacecraft commandability requirements . 12 7.3 Memory management. 14 7.4 On-board processing functions 15 7.5 Equipment/subsystem-specific requirements. 19 Annex A (informative) Mission constant
17、s 23 BS ISO 14950:2004 Licensed Copy: London South Bank University, London South Bank University, Tue Jan 30 01:34:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI IS:05941 O4002(E) iv I SO 4002 All irthgs ersedevr Foreword ISO (the International Organization for Standardization) is a worldwide federat
18、ion 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 in a subject for which a technical committee has been established has the right to be represented on that committe
19、e. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance
20、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 Standard requires app
21、roval 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. ISO shall not be held responsible for identifying any or all such patent rights. ISO 14950 was prepared by Technical Commi
22、ttee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 14, Space systems and operations. BS ISO 14950:2004 Licensed Copy: London South Bank University, London South Bank University, Tue Jan 30 01:34:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI IS:05941 O4002(E) I SO 4002 All irthgs ersedevr v
23、 0 Introduction 0.1 Spacecraft operation The operation of a spacecraft is an activity performed from a mission control centre in order to: a) ensure availability of mission and science products/services or data; b) carry out routine housekeeping operations; c) recover from on-board contingencies; d)
24、 manage on-board resources in order to maximize the provision of products/services and the mission lifetime. 0.2 Spacecraft operability The operability is a feature of the spacecraft itself that enables a specified ground segment comprising hardware, software, personnel, and procedures, to operate t
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