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    BS DD IEC PAS 61162-100-2002 Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Single talker and multiple listeners - Extra requirements to IE.pdf

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    BS DD IEC PAS 61162-100-2002 Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Single talker and multiple listeners - Extra requirements to IE.pdf

    1、DRAFT FOR DEVELOPMENT DD IEC/PAS 61162-100: 2002 Maritime navigation and radiocommunication equipment and systems Digital interfaces Part 100: Single talker and multiple listeners Extra requirements to IEC 61162-1 for the UAIS ICS 47.020.70 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY CO

    2、PYRIGHT LAWDD IEC/PAS 61162-100:2002 This Draft for Development, having been prepared under the direction of the Electrotechnical Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 26 June 2002 BSI 26 June 2002 ISBN 0 580 39868 4

    3、 National foreword This Draft for Development reproduces verbatim IEC/PAS 61162-100:2002. This publication is not to be regarded as a British Standard. It is being issued in the Draft for Development series of publications and is of a provisional nature because this allows new information needed for

    4、 the development of UAIS to be placed in the public domain in a shorter timescale than revising the appropriate international standards. It should be applied on this provisional basis, so that information and experience of its practical application may be obtained. A PAS is a Technical Specification

    5、 not fulfilling the requirements for a standard, but made available to the public and established in an organization operating under a given procedure. Comments arising from the use of this Draft for Development are requested so that UK experience can be reported to the international organization re

    6、sponsible for the Technical Specification. A review of this publication will be initiated not later than 3 years after its publication by the international organization so that a decision can be taken on its status at the end of its 3-year life. Notification of the start of the review period will be

    7、 made in an announcement in the appropriate issue of Update Standards. According to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion into an international Standard, to extend the life of the Technical Specification for

    8、another 3 years or to withdraw it. Comments should be sent in writing to the Secretary of BSI Technical Committee EPL/80, Maritime navigation and radiocommunication equipment and systems, at 389 Chiswick High Road, London W4 4AL, giving the document reference and clause number and proposing, where p

    9、ossible, an appropriate revision of the text. A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a p

    10、eriod of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section enti

    11、tled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. Summary of pages This document comprises a front cover, an inside front cover, the IEC/PAS title page, pages 2 to 35, and a back cover. The BSI copyr

    12、ight date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsMaritime navigation and radiocommunication equipment and systems Digital interfaces Part 100: Single talker and multiple listeners Extra requirements to IEC 611

    13、62-1 for the UAIS PUBLICLY AVAILABLE SPECIFICATION IEC/PAS 61162-100 Edition 1.0 2002-04 INTERNATIONAL ELECTROTECHNICAL COMMISSION Reference numberIEC/PAS 61162-100 DDIEC/PAS61162100:2002CONTENTS FOREWORD 3 INTRODUCTION.4 Clause 1 Scope 5 2 Normative references .5 3 Definitions6 3.1 Parametric sente

    14、nces 6 3.2 Encapsulation sentences .6 4 Data requirements of the AIS7 5 Existing IEC 61162-1 sentences for the AIS 7 6 Additional IEC 61162-1 parametric sentences for the AIS 8 7 New encapsulation sentence structures for the AIS .18 8 Data format protocol errors error detection and handling 21 Annex

    15、 A (normative) Approved encapsulation sentence structure .22 Annex B (normative) Summary of changes to existing IEC 61162-1 clauses which have been modified to include encapsulation sentences 23 B.1 Message .23 B.2 Sequential Message Identifier23 B.3 Multi-sentence Messages 23 B.4 Proprietary Senten

    16、ces .23 B.5 Future additions to Approved sentences.24 B.6 Changes to the Reserved Character List 24 B.7 Changes to Character Symbol Table 24 B.8 Additions to field type summary : .25 Annex C (normative) Six bit binary field conversion 26 Annex D (informative) Example encapsulation sentences29 D.1 Ne

    17、w clause 7 to IEC 61162-1.29 D.2 Background Discussion - encapsulation coding 29 D.3 Decoding the Encapsulated String .31 D.4 Conversion from symbols to binary bits 31 D.5 Organizing the Binary Message Data .32 D.6 Interpreting the Decoded Binary Strings .32 Annex E (informative) Copy of ITU-R M.137

    18、1-1:2000, TABLE 15 35 Figures Figure C-1 - 6-bit binary code converted to valid IEC 61162-1 character 27 Figure C-2 - Valid IEC 61162-1 character converted to 6-bit binary code28 Figure D-1 - Message Data format 30 Figure D-2 - Work sheet for decoding and interpreting encapsulated string 34 DDIEC/PA

    19、S61162100:20022INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MARITIME NAVIGATION AND RADIOCOMMUNICATION EQUIPMENT AND SYSTEMS DIGITAL INTERFACES Part 100: Single talker and multiple listeners Extra requirements to IEC 61162-1 for the UAIS FOREWORD A PAS is a technical specification not fulfilling the

    20、requirements for a standard, but made available to the public. IEC-PAS 61162-100 has been processed by IEC technical committee 80: Maritime navigation and radiocommunication equipment and systems. The text of this PAS is based on the following document: This PAS was approved for publication by the P

    21、-members of the committee concerned as indicated in the following document: Draft PAS Report on voting 80/330/PAS 80/338/RVD Following publication of this PAS, the technical committee or subcommittee concerned will investigate the possibility of transforming the PAS into an International Standard. T

    22、his PAS document relates to International Standard IEC 61162-1. The document has been co- ordinated with the TC 80 Working Group preparing the AIS Standard IEC 61993 Part 2, and the NMEA Standards Committee. 1) The IEC (International Electrotechnical Commission) is a worldwide organization for stand

    23、ardization comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, the IEC publi

    24、shes International Standards. Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in thi

    25、s preparation. The IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an inte

    26、rnational consensus of opinion on the relevant subjects since each technical committee has representation from all interested National Committees. 3) The documents produced have the form of recommendations for international use and are published in the form of standards, technical specifications, te

    27、chnical reports or guides and they are accepted by the National Committees in that sense. 4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. An

    28、y divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter. 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its stan

    29、dards. 6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights. DDIEC/PAS61162100:20023INTRODUCTION This document is issued as a IEC Publ

    30、icly Available Specification according to the IEC/PAS approval process. This agreed process allows the new information needed for the development of UAIS to be placed in the public domain in a shorter timescale than revising the appropriate International standards. This document provides information

    31、 on the necessary interface standards for use with the UAIS, which are not available in the current issue of IEC 61162-1 Ed 2. The information in this PAS supersedes that in annex B (informative) of IEC 61993-2, the Standard for UAIS. This PAS will include the interface standards, which are currentl

    32、y being adopted in the NMEA 0183 standard and alignment will be maintained. This PAS will be replaced at a future date by, or be included within, a revision of the international standard IEC 61162-1. DDIEC/PAS61162100:20024MARITIME NAVIGATION AND RADIOCOMMUNICATION EQUIPMENT AND SYSTEMS DIGITAL INTE

    33、RFACES Part 100: Single talker and multiple listeners Extra requirements to IEC 61162-1 for the UAIS 1 Scope All the requirements to effectively transmit the data of the mobile TDMA based AIS station are included in this PAS. Whilst the established Standard IEC 61162-1 sentences are available for ce

    34、rtain functions a number of new sentences are now required to permit all specified AIS data to be transmitted. The total requirements for the AIS are included in this PAS document but the current Standard IEC 61162-1 should be referred to for the reference data applicable to the existing format. The

    35、 reader should be aware that certain of the new sentences may include new features not currently included in IEC 61162-1. For this reason the PAS has been divided into three sections, namely: - - Existing IEC 61162-1 sentences to be employed in the AIS (and elsewhere) see clause 5 - Additional IEC 6

    36、1162-1 sentences to cover new AIS requirements, but maintaining the standard format see clause 6 - Proposed new sentence structures to meet specific AIS requirements and which cannot be accommodated in the standard IEC 61162-1 format. These new sentence standards are essentially designed to meet the

    37、 AIS requirements and are not for general use see clause 7 and annex A. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced

    38、 document (including any amendments) applies. The references contained in IEC 61162-1 apply to this PAS. In addition the following apply: IEC Standard 61993 Part 2: Universal Shipborne Automatic Identification System (AIS); Operational and Performance Requirements, Methods of Test and required Test

    39、Results. ITU-R M.1371-1:2001 Technical characteristics for a Universal Shipborne Automatic Identification System (AIS) using TDMA in the VHF maritime mobile band. IMO Recommendation on Performance Standards for a Universal Automatic Identification System (AIS) MSC.74(69) IMO SOLAS Convention, Chapte

    40、r V (2002) IMO HSC Code, Chapter 13 ISO/IEC 10646-1 (1993-05). Unicode Standard DDIEC/PAS61162100:200253 Definitions 3.1 Parametric sentences (See IEC 61162-1 clause 5 Data format protocol) These sentences start with the “$” (HEX 24) delimiter and represent the majority of approved sentences defined

    41、 by IEC 61162-1 and this PAS. This is the preferred method for conveying information. Refer to clauses 5 and 6 for details. The maximum number of characters in a sentence shall be 82, consisting of a maximum of 79 characters between the starting delimiter “$” and the terminating delimiter . The mini

    42、mum number of fields in a sentence is one (1). The first field shall be an address field containing the identity of the talker and the sentence formatter, which specifies the number of data fields in the sentence, the type of data they contain and the order in which the data fields are transmitted.

    43、The remaining portion of the sentence may contain zero or multiple data fields. The maximum number of fields allowed in a single sentence is limited only by the maximum sentence length and shall always be used even if data for that field is unavailable. The basic rules for parametric sentence struct

    44、ures are: - The sentence begins with the “$” delimiter. - Only approved sentence formatters are allowed. Formatters used by special-purpose encapsulation sentences cannot be re-used. (See IEC 61162-1, clause 6.2 (table 5).) - Only valid characters are allowed. (See IEC 61162-1, clause 6.1 (tables 1

    45、and 2).) - Only approved field types are allowed. (See IEC 61162-1, clause 6.2 (table 6).) - Data fields (parameters) are individually delimited, and their content is identified and often described in detail by this standard. - Encapsulated non-delimited data fields are NOT ALLOWED. 3.2 Encapsulatio

    46、n sentences (New definition not currently in IEC 61162-1) These sentences start with the “!” (HEX 21) delimiter. The function of this special-purpose sentence structure is to provide a means to convey information, when the specific data content is unknown or greater information bandwidth is needed.

    47、This is similar to a modem that transfers information without knowing how the information is to be decoded or interpreted. The basic rules for encapsulation sentence structures are: - The sentence begins with the “!” delimiter. - Only approved sentence formatters are allowed. Formatters used by conv

    48、entional parametric sentences can not be re-used. (See clauses 5 and 6, and IEC 61162-1, clause 6.2 (table 5). - Only valid characters are allowed. (See IEC 61162-1, clause 6.1 (tables 1 and 2).) - Only approved field types are allowed. (See annex B.5 and IEC 61162-1, clause 6.2 (table 6).) - Only S

    49、ix bit coding may be used to create encapsulated data fields. (See annex B.5.) - Encapsulated data fields may consist of any number of parameters, and their content is not identified or described by this standard. - The sentence must be defined with one encapsulated data field and any number of parametric data fields separated by the “,” data field delimiter. The encapsulated data DDIEC/PAS61162100:20026field shall always be the second to last data field in the sentence, not counting the checksum field. (See IEC 61162-1,


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