IEC 62287-1-2017 Maritime navigation and radiocommunication equipment and systems - Class B shipborne equipment of the automatic identification system (AIS) - Part 1 Carrier-sense .pdf

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1、 IEC 62287-1 Edition 3.0 2017-04 INTERNATIONAL STANDARD Maritime navigation and radiocommunication equipment and systems Class B shipborne equipment of the automatic identification system (AIS) Part 1: Carrier-sense time division multiple access (CSTDMA) techniques IEC 62287-1:2017-04(en) colour ins

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11、TIONAL STANDARD Maritime navigation and radiocommunication equipment and systems Class B shipborne equipment of the automatic identification system (AIS) Part 1: Carrier-sense time division multiple access (CSTDMA) techniques INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 47.020.70 ISBN 978-2-8322-41

12、52-3 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. colour inside 2 IEC 62287-1:2017 IEC 2017 CONTENTS FOREWORD . 8 INTRODUCTION . 10 1 Scope 11 2 Normative references 11 3 Terms, definitions

13、 and abbreviated terms 12 3.1 Terms and definitions 12 3.2 Abbreviated terms . 12 4 General requirements 13 4.1 General . 13 4.1.1 Capabilities of the Class B “CS“ AIS 13 4.1.2 Quality assurance 13 4.1.3 Safety of operation 14 4.1.4 Additional features . 14 4.1.5 Modes of operation 14 4.2 Manuals 15

14、 4.3 Marking and identification . 15 5 Environmental, power supply, interference and safety requirements 15 6 Performance requirements. 16 6.1 Composition 16 6.2 Operating frequency channels . 16 6.3 GNSS receiver for position reporting . 16 6.4 Identification . 17 6.5 AIS information . 17 6.5.1 Inf

15、ormation content 17 6.5.2 Information reporting intervals . 18 6.5.3 Permissible initialisation period 18 6.6 Alarms and indications, fall-back arrangements 18 6.6.1 Integrity and protection 18 6.6.2 Transmitter shutdown procedure 19 6.6.3 Position sensor fallback conditions 19 6.6.4 SOG/COG sensor

16、fallback conditions 20 6.7 User interface . 20 6.7.1 Indicators and display 20 6.7.2 Static data input 20 6.7.3 External interfaces . 20 6.8 Protection from invalid control commands . 21 7 Technical requirements . 21 7.1 General . 21 7.2 Physical layer . 22 7.2.1 General . 22 7.2.2 Transceiver chara

17、cteristics 22 7.2.3 Transmitter requirements . 24 7.2.4 Receiver requirements . 24 7.3 Link layer 25 7.3.1 General . 25 IEC 62287-1:2017 IEC 2017 3 7.3.2 Link sublayer 1: Medium access control (MAC) 25 7.3.3 Link sublayer 2: Data Link Service (DLS) . 28 7.3.4 Link sublayer 3: Link management entity

18、(LME) . 33 7.4 Network layer 41 7.4.1 General . 41 7.4.2 Dual channel operation 41 7.4.3 Channel management 42 7.4.4 Distribution of transmission packets . 42 7.4.5 Data link congestion resolution 42 7.5 Transport layer . 42 7.5.1 General . 42 7.5.2 Transmission packets 43 7.5.3 Sequencing of data p

19、ackets . 43 7.6 Digital selective calling (DSC) . 43 8 Test conditions 43 8.1 General . 43 8.2 Normal and extreme test conditions 43 8.2.1 Normal test conditions . 43 8.2.2 Extreme test conditions . 43 8.3 Test signals 43 8.3.1 Standard test signal number 1 . 44 8.3.2 Standard test signal number 2 .

20、 44 8.3.3 Standard test signal number 3 . 44 8.3.4 Standard test signal number 4 . 44 8.3.5 Standard test signal number 5 . 44 8.4 Test arrangements 45 8.4.1 Standard test environment . 45 8.4.2 Modes of operation of the transmitter. 46 8.4.3 Common test conditions for protection from invalid contro

21、ls . 46 8.4.4 Measurement uncertainties 46 9 Power supply, environmental and EMC tests . 47 9.1 Test summary . 47 9.2 Vibration/shock . 49 9.2.1 Vibration 49 9.2.2 Shock 49 9.3 Performance tests/checks . 49 9.4 Undervoltage test (brown out) . 50 9.4.1 Purpose . 50 9.4.2 Method of test 50 9.4.3 Requi

22、red result 50 10 Operational tests . 50 10.1 General . 50 10.1.1 Quality assurance 50 10.1.2 Safety of operation 50 10.1.3 Additional features . 50 10.2 Modes of operation . 51 10.2.1 Autonomous mode . 51 10.2.2 Assigned mode 52 10.2.3 Polled mode/interrogation response . 53 4 IEC 62287-1:2017 IEC 2

23、017 10.3 Messages extending one time period 54 10.3.1 Method of measurement 54 10.3.2 Required results 54 10.4 Channel selection . 54 10.4.1 Valid channels . 54 10.4.2 Invalid channels . 54 10.5 Internal GNSS receiver . 54 10.6 AIS information . 55 10.6.1 Information content 55 10.6.2 Information up

24、date rates 56 10.7 Initialisation period 57 10.7.1 Method of measurement 57 10.7.2 Required results 57 10.8 Alarms and indications, fall-back arrangements 57 10.8.1 Built-in integrity test . 57 10.8.2 Transceiver protection . 58 10.8.3 Transmitter shutdown procedure 58 10.8.4 Position sensor fallbac

25、k conditions 58 10.8.5 Speed sensors . 59 10.9 User interface . 59 10.9.1 Display 59 10.9.2 Message display 59 10.9.3 Static data input 60 10.9.4 External interfaces . 60 11 Physical tests 60 11.1 TDMA transmitter 60 11.1.1 Frequency error . 60 11.1.2 Carrier power . 61 11.1.3 Transmission spectrum

26、61 11.1.4 Modulation accuracy 62 11.1.5 Transmitter output power versus time function . 63 11.2 TDMA receivers 64 11.2.1 Sensitivity 64 11.2.2 Error behaviour at high input levels 65 11.2.3 Co-channel rejection 65 11.2.4 Adjacent channel selectivity . 66 11.2.5 Spurious response rejection 67 11.2.6

27、Intermodulation response rejection 69 11.2.7 Blocking or desensitisation 70 11.3 Conducted spurious emissions 71 11.3.1 Spurious emissions from the receiver 71 11.3.2 Spurious emissions from the transmitter 72 12 Specific tests of link layer 72 12.1 TDMA synchronisation 72 12.1.1 Synchronisation tes

28、t sync mode 1 72 12.1.2 Synchronisation test sync mode 2 73 12.1.3 Synchronisation test with UTC . 74 12.2 Carrier-sense tests . 74 12.2.1 Threshold level 74 IEC 62287-1:2017 IEC 2017 5 12.2.2 Carrier-sense timing 75 12.3 VDL state/reservations 76 12.3.1 Method of measurement 76 12.3.2 Required resu

29、lts 76 12.4 Data encoding (bit stuffing) . 76 12.4.1 Method of measurement 76 12.4.2 Required results 76 12.5 Frame check sequence . 76 12.5.1 Method of measurement 76 12.5.2 Required results 76 12.6 Slot allocation (channel access protocol) 77 12.6.1 Autonomous mode allocation . 77 12.6.2 DSC liste

30、ning periods 77 12.7 Assigned operation . 77 12.7.1 Assignment priority 77 12.7.2 Entering rate assignment . 78 12.7.3 Reverting from rate assignment . 78 12.7.4 Reverting from quiet mode . 78 12.7.5 Retry of interrogation response 78 12.8 Message formats 79 12.8.1 Received messages . 79 12.8.2 Tran

31、smitted messages . 79 13 Specific tests of network layer . 79 13.1 Regional area designation by VDL message . 79 13.1.1 Method of measurement 79 13.1.2 Required results 80 13.2 Regional area designation by serial message or manually 80 13.2.1 Method of measurement 80 13.2.2 Required result 80 13.3 M

32、anagement of received regional operating settings . 80 13.3.1 Replacement or erasure of dated or remote regional operating settings . 80 13.3.2 Channel management by addressed Message 22 81 13.3.3 Invalid regional operating areas . 82 13.3.4 Continuation of autonomous mode reporting rate . 82 13.3.5

33、 Other conditions 82 Annex A (informative) Results of computer simulations and testing of CSTDMA technology 83 A.1 Computer simulations . 83 A.2 Carrier-sense tests . 84 A.3 Range tests 85 A.4 Conclusion 85 Annex B (informative) Description of the system 86 Annex C (normative) DSC channel management

34、 87 C.1 DSC functionality 87 C.2 DSC time sharing 87 C.3 DSC functionality tests 88 C.3.1 General . 88 C.3.2 Regional area designation . 88 C.3.3 Scheduling 88 6 IEC 62287-1:2017 IEC 2017 C.3.4 DSC flag in Message 18 88 C.3.5 DSC monitoring time plan 88 C.3.6 Replacement or erasure of dated or remot

35、e regional operating settings . 89 C.3.7 Test of addressed telecommand 89 C.3.8 Invalid regional operating areas . 90 C.4 DSC receiver tests 90 C.4.1 General . 90 C.4.2 Maximum sensitivity. 90 C.4.3 Error behaviour at high input levels 91 C.4.4 Co-channel rejection 91 C.4.5 Adjacent channel selectiv

36、ity . 91 C.4.6 Spurious response rejection 92 C.4.7 Intermodulation response rejection 92 C.4.8 Blocking or desensitisation 93 Annex D (informative) Channel management regions . 94 Bibliography 95 Figure 1 OSI layer model . 22 Figure 2 Carrier-sense timing . 27 Figure 3 Power versus time mask 28 Fig

37、ure 4 Transmission packet 29 Figure 5 Training sequence 30 Figure 6 Transmission timing . 32 Figure 7 Example for CSTDMA access. 33 Figure 8 Format for repeating four-packet cluster . 44 Figure 9 Measurement arrangement for carrier power 61 Figure 10 Emission mask . 62 Figure 11 Measurement arrangem

38、ent for modulation accuracy . 63 Figure 12 Measurement arrangement . 64 Figure 13 Measurement arrangement with two generators . 66 Figure 14 SINAD or PER/BER measuring equipment . 68 Figure 15 Measurement arrangement for intermodulation . 70 Figure 16 Configuration for carrier-sense threshold test .

39、 75 Figure 17 Regional area scenario 80 Figure A.1 Effect on Class A AIS messages of Class B messages . 83 Figure A.2 Reception of messages by Class A AIS 84 Figure A.3 Reception of messages by Class B AIS 84 Figure A.4 Range achieved by a Class A AIS from Class B AIS . 85 Figure D.1 Channel managem

40、ent regions used for test given in 13.3.1 94 Table 1 Position sensor fallback conditions 19 Table 2 Use of accuracy (PA) flag 20 Table 3 Transceiver characteristics 23 Table 4 Transmitter parameters . 24 Table 5 Receiver parameters . 25 IEC 62287-1:2017 IEC 2017 7 Table 6 Definition of timings for F

41、igure 3 28 Table 7 Start-buffer 30 Table 8 Summary of the transmission packet . 31 Table 9 Transmission timing 32 Table 10 Access parameters 33 Table 11 Use of VDL messages by a Class B “CS“ AIS 36 Table 12 Number of data bits for use with Message 14 37 Table 13 Contents of Message 18 38 Table 14 Me

42、ssage 24 Part A 39 Table 15 Message 24 Part B 39 Table 16 Contents of Message 23 40 Table 17 Reporting interval settings for use with Message 23 41 Table 18 Channel management 42 Table 19 Content of first two packets . 45 Table 20 Fixed PRS data derived from ITU-T O.153. 45 Table 21 Test summary 48

43、Table 22 Peak frequency deviation versus time 63 Table 23 Frequencies for inter-modulation test 70 Table 24 Required threshold test results 75 Table 25 Required carrier-sense timing results 76 Table 26 Required channels in use 80 Table C.1 DSC monitoring times 88 8 IEC 62287-1:2017 IEC 2017 INTERNAT

44、IONAL ELECTROTECHNICAL COMMISSION _ MARITIME NAVIGATION AND RADIOCOMMUNICATION EQUIPMENT AND SYSTEMS CLASS B SHIPBORNE EQUIPMENT OF THE AUTOMATIC IDENTIFICATION SYSTEM (AIS) Part 1: Carrier-sense time division multiple access (CSTDMA) techniques FOREWORD 1) The International Electrotechnical Commiss

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