IEC 61097-14-2010 Global maritime distress and safety system (GMDSS) - Part 14 AIS search and rescue transmitter (AIS-SART) - Operational and performance requir.pdf

1、 IEC 61097-14 Edition 1.0 2010-02 INTERNATIONAL STANDARD Global maritime distress and safety system (GMDSS) Part 14: AIS search and rescue transmitter (AIS-SART) Operational and performance requirements, methods of testing and required test results IEC 61097-14:2010(E) colour inside THIS PUBLICATION

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9、19 02 11 Fax: +41 22 919 03 00 IEC 61097-14 Edition 1.0 2010-02 INTERNATIONAL STANDARD Global maritime distress and safety system (GMDSS) Part 14: AIS search and rescue transmitter (AIS-SART) Operational and performance requirements, methods of testing and required test results INTERNATIONAL ELECTRO

10、TECHNICAL COMMISSION W ICS 47.020.70 PRICE CODE ISBN 2-8318-1078-1 Registered trademark of the International Electrotechnical Commission colour inside 2 61097-14 IEC:2010(E) CONTENTS FOREWORD.5 1 Scope.7 2 Normative references .7 3 Performance requirements .8 3.1 General .8 3.2 Operational .8 3.3 Ba

11、ttery 8 3.3.1 General .9 3.3.2 Battery life and expiry date9 3.3.3 Reverse polarity protection9 3.4 Unique identifier (user ID) .9 3.5 Environment10 3.6 Range performance.10 3.7 Transmission performance 10 3.7.1 Active mode 10 3.7.2 Test Mode .12 3.8 Labelling .12 3.9 Manuals 12 4 Technical requirem

12、ents 13 4.1 Functional block diagram of an AIS-SART .13 4.1.1 General .13 4.1.2 TDMA transmitter (AIS Tx).13 4.1.3 Controller 13 4.1.4 Timing and synchronisation device 13 4.1.5 Battery 14 4.1.6 Electronic position fixing system14 4.1.7 Activator14 4.1.8 Indicator 14 4.2 Physical layer requirement 1

13、5 4.2.1 Transmitter requirements.15 4.3 Link layer requirements .16 4.3.1 General .16 4.3.2 AIS Messages .16 4.3.3 Synchronisation.17 4.3.4 VDL access scheme 17 4.3.5 Link sub-layer 1: Medium Access Control (MAC) .18 4.3.6 Link sub-layer 2: Data Link Service (DLS) .18 4.3.7 Link sub-layer 3: Link Ma

14、nagement Entity (LME) .18 5 General methods of testing.18 5.1 Introduction .18 5.2 General requirements18 5.2.1 General .18 5.2.2 Performance check19 5.2.3 Performance test .19 5.3 Normal test conditions.19 5.4 Extreme test conditions .19 61097-14 IEC:2010(E) 3 5.5 Preparation of AIS-SART for type-a

15、pproval testing19 5.6 Test signals.19 5.6.1 Standard test signal number 1 .19 5.6.2 Standard test signal number 2 .19 5.6.3 Standard test signal number 3 .20 5.7 Artificial antenna (dummy load) .20 5.8 Facilities for access.20 5.9 Modes of operation of the transmitter 20 5.10 Measurement uncertainti

16、es .20 6 Performance tests 21 6.1 Operational tests.21 6.2 Battery 21 6.2.1 Battery capacity test21 6.2.2 Expiry date indication 22 6.2.3 Reverse polarity protection22 6.3 Unique identifier 22 6.4 Environment22 6.5 Range performance.22 6.6 Transmission performance 22 6.7 Labelling .22 6.8 Manuals 23

17、 6.9 Electronic position fixing system23 6.10 Activator23 6.11 Indicator23 7 Physical radio tests 23 7.1 General description .23 7.2 Frequency error.24 7.2.1 Purpose.24 7.2.2 Method of measurement 24 7.2.3 Required results 24 7.3 Conducted power 24 7.3.1 Purpose.24 7.3.2 Method of measurement 24 7.3

18、3 Required result25 7.4 Radiated power .25 7.4.1 Purpose.25 7.4.2 Method of measurement 25 7.4.3 Required results 26 7.5 Modulation spectrum slotted transmission .26 7.5.1 Purpose.26 7.5.2 Method of measurement 26 7.5.3 Required results 26 7.6 Transmitter test sequence and modulation accuracy .27 7

19、6.1 Purpose.27 7.6.2 Method of measurement 27 7.6.3 Required results 28 7.7 Transmitter output power versus time function.28 7.7.1 Definition.28 7.7.2 Method of measurement 29 4 61097-14 IEC:2010(E) 7.7.3 Required results 30 7.8 Spurious emissions from the transmitter30 7.8.1 Purpose.30 7.8.2 Metho

20、d of measurement 30 7.8.3 Required results 30 8 Link layer tests .30 8.1 Tests for synchronisation accuracy30 8.1.1 Method of measurement 30 8.1.2 Required results 30 8.2 Active mode tests30 8.2.1 Method of measurement 31 8.2.2 Initialisation period Required results.31 8.2.3 Message content of Messa

21、ge 1 Required results 31 8.2.4 Message content of Message 14 Required results 31 8.2.5 Transmission schedule for Message 1 Required results32 8.2.6 Communication state of Message 1 Required results32 8.2.7 Transmission schedule of Message 14 Required results .32 8.2.8 Transmission with lost EPFS Req

22、uired results32 8.3 Test mode tests.33 8.3.1 General .33 8.3.2 Transmission with EPFS data available .33 8.3.3 Transmission without EPFS data available 33 Annex A (informative) Results of trials to verify the range performance of the AIS- SART35 Bibliography39 Figure 1 Functional block diagram of an

23、 AIS-SART13 Figure 2 Burst transmissions in active mode 18 Figure 3 Measurement arrangement 24 Figure 4 Emission mask.27 Figure 5 Measurement arrangement for modulation accuracy 27 Figure 6 Power versus time mask 29 Table 1 Required parameter settings for an AIS-SART.15 Table 2 Required settings of

24、physical layer constants 15 Table 3 Modulation parameters of the physical layer of the AIS-SART .16 Table 4 Minimum required transmitter characteristics.16 Table 5 Maximum values of absolute measurement uncertainties 20 Table 6 Conducted power Required results.25 Table 7 Peak frequency deviation ver

25、sus time .28 Table 8 Definition of timings.29 Table A.1 Test results, AIS-SART to vessel (Oban Bay, Scotland) Distances detected in nautical miles (NM) .37 Table A.2 Test results, AIS-SART to helicopter (Oban Bay, Scotland) Distances detected in nautical miles (NM).37 Table A.3 Test results, AIS-SAR

26、T to aircraft (Key West, Florida) Distances detected in nautical miles (NM) .38 61097-14 IEC:2010(E) 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ GLOBAL MARITIME DISTRESS AND SAFETY SYSTEM (GMDSS) Part 14: AIS search and rescue transmitter (AIS-SART) Operational and performance requirements, method

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38、itime navigation and radiocommunication equipment and systems. The text of this standard is based on the following documents: FDIS Report on voting 80/582/FDIS 80/589/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above tabl

39、e. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. 6 61097-14 IEC:2010(E) A list of all parts of the IEC 61097 series published under the general title Global maritime distress and safety system (GMDSS), can be found on the IEC website. The committee has decided

40、that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or a

41、mended. A bilingual version of this publication may be issued at a later date. IMPORTANT The “colour inside” logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print thi

42、s publication using a colour printer. 61097-14 IEC:2010(E) 7 GLOBAL MARITIME DISTRESS AND SAFETY SYSTEM (GMDSS) Part 14: AIS search and rescue transmitter (AIS-SART) Operational and performance requirements, methods of testing and required test results 1 Scope This part of IEC 61097 specifies the mi

43、nimum performance requirements, technical characteristics and methods of testing, and required test results, for Automatic Identification Systems (AIS) search and rescue transmitters (AIS-SART) which may be carried by ships as a search and rescue locating device as required by Chapters III and IV of

44、 the International Convention for Safety of Life at Sea (SOLAS), as amended. It takes account of IMO resolution A.694(17) and is associated with IEC 60945. When a requirement in this standard is different from IEC 60945, the requirement in this part of IEC 61097 takes precedence. This standard incor

45、porates the applicable parts of the performance standards included in IMO Resolution MSC.246(83) and the applicable technical characteristics included in Recommendation ITU-R M.1371 and is associated with IEC 61993-2 (Class A shipborne AIS). All the text of this standard, whose wording is identical

46、to that of IMO Resolution MSC.246(83), is printed in italics, and the Resolution and associated performance standard paragraph numbers are indicated in brackets. NOTE IEC 61097-1 specifies the requirements for radar transponders for use in search and rescue operations (SART) which may alternatively

47、be carried by ships as a search and rescue locating device. 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 document (i

48、ncluding any amendments) applies. IEC 60945, Maritime navigation and radiocommunication equipment and systems General requirements Methods of testing and required test results IEC 61108 (all parts), Maritime navigation and radiocommunication equipment and systems Global navigation satellite systems

49、GNSS) IMO Resolution MSC.246(83), Performance standards for survival craft AIS search and rescue transmitter (AIS-SART) ITU-R Recommendation M.1371, Technical characteristics for an automatic identification system using time division multiple access in the VHF maritime mobile band ITU-T Recommendation O.153, Basic parameters for the measurement of error performance at bit rates below the primary rate 8 61097-14 IEC:2010(E) 3 Performan