BS EN 62287-2:2013
$215.11
Maritime navigation and radiocommunication equipment and systems. Class B shipborne equipment of the automatic identification system (AIS) – Self-organising time division multiple access (SOTDMA) techniques
| Published By | Publication Date | Number of Pages |
| BSI | 2013 | 92 |
This part of IEC 62287 specifies operational and performance requirements, methods of testing and required test results for Class B “SO” shipborne AIS equipment using Self-organised TDMA (SOTDMA) techniques as described in Recommendation ITU-R M.1371. This standard takes into account other associated IEC International Standards and existing national standards, as applicable.
The main differences between Class B “CS” (IEC 62287-1) and Class B “SO” units are that the Class B “SO”:
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covers all 25 kHz channels listed in Recommendation ITU-R M.1084-5;
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only uses the internal GNSS, no position sensor input is allowed;
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requires use of VDL Message 17 for correction of the internal GNSS;
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has a presentation interface;
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has additional reporting intervals, down to 5 s;
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has two power settings, with a high level of 5 W;
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has the capability to transmit binary messages.
It is applicable for AIS equipment used on craft that are not covered by a mandatory carriage requirement of AIS under SOLAS Chapter V.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | CONTENTS |
| 11 | 1 Scope 2 Normative references |
| 12 | 3 Abbreviations |
| 13 | 4 General requirements 4.1 General 4.1.1 Capabilities of the Class B “SO” AIS 4.1.2 Quality assurance 4.1.3 Safety of operation |
| 14 | 4.1.4 Additional features 4.1.5 Functionality 4.2 Manuals 4.3 Marking and identification 5 Environmental, power supply, interference and safety requirements |
| 15 | 6 Performance requirements 6.1 Internal processes |
| 16 | 6.2 Operating frequency channels 6.3 Internal GNSS receiver for position reporting 6.4 Identification 6.5 AIS Information 6.5.1 Information content |
| 17 | 6.5.2 Information reporting intervals |
| 18 | 6.5.3 Short safety-related messages 6.5.4 Permissible initialisation period 6.6 Alarms and indications, fall-back arrangements 6.6.1 Built-in integrity tests (BIIT) Tables Table 1 – Dynamic information autonomous reporting intervals for Class B “SO” AIS |
| 19 | 6.6.2 Transmitter shutdown procedure Table 2 – BIIT and reaction to malfunctions |
| 20 | 6.6.3 Position sensor fallback conditions 6.7 User interface 6.7.1 Indication and display Table 3 – Position sensor fallback conditions |
| 21 | 6.7.2 Static data input 6.7.3 External interfaces 6.8 Protection from invalid control commands 7 Technical requirements 7.1 General |
| 22 | 7.2 Physical layer 7.2.1 General 7.2.2 Receiver characteristics Figures Figure 1 – OSI layer model |
| 23 | 7.2.3 Other characteristics Table 4 – Required receiver performance Table 5 – Transceiver characteristics |
| 24 | 7.2.4 Transmitter requirements |
| 25 | 7.3 Link layer 7.3.1 General 7.3.2 Link sub-layer 1: Medium Access Control (MAC) Table 6 – Transmitter characteristics |
| 26 | Figure 2 – Power versus time mask |
| 27 | 7.3.3 Link sub-layer 2: Data Link Service (DLS) 7.3.4 Link sub-layer 3: Link Management Entity (LME) Table 7 – Definitions of timing for Figure 2 |
| 30 | Table 8 – Use of VDL Messages by a Class B “SO” AIS |
| 31 | 7.4 Network layer 7.4.1 General 7.4.2 Management of regional operating settings |
| 32 | 7.4.3 Multi-channel operation 7.5 Transport layer |
| 33 | 7.6 Presentation Interface 7.7 DSC receive capability 8 Test conditions 8.1 General 8.2 Normal test conditions 8.2.1 Temperature and humidity 8.2.2 Power supply 8.3 Extreme test conditions 8.4 Test signals 8.4.1 Standard test signal number 1 |
| 34 | 8.4.2 Standard test signal number 2 8.4.3 Standard test signal number 3 8.4.4 Standard test signal number 4 Figure 3 – Format for repeating four-packet cluster Table 9 – Content of first two packets |
| 35 | 8.5 Standard test environment 8.5.1 Test setup 8.5.2 Sensor test input 8.5.3 Synchronisation 8.5.4 Test signals applied to the receiver input Table 10 – Fixed PRS data derived from Recommendation ITU-T O.153 |
| 36 | 8.5.5 Waiver for receivers 8.5.6 Artificial antenna (dummy load) 8.5.7 Modes of operation of the transmitter 8.5.8 Common test conditions for protection from invalid controls 8.5.9 Measurement uncertainties |
| 37 | 9 Power supply, environmental and EMC tests 9.1 Test summary Table 11 – Test |
| 38 | 9.2 Vibration 9.2.1 Purpose 9.2.2 Method of measurement 9.2.3 Required results 9.3 Shock 9.3.1 Purpose 9.3.2 Method of measurement 9.3.3 Required result 9.4 Performance tests / checks |
| 39 | 9.5 Under voltage test (brown out) 9.5.1 Purpose 9.5.2 Method of test 9.5.3 Required result 9.6 Under voltage test (short term) 9.6.1 Purpose 9.6.2 Method of test 9.6.3 Required result 10 Operational tests 10.1 General 10.1.1 Tests by inspection |
| 40 | 10.1.2 Safety of operation 10.1.3 Additional features 10.2 Modes of operation 10.2.1 Autonomous mode |
| 42 | 10.2.2 Single messages |
| 45 | 10.2.3 Polled mode / Interrogation response |
| 46 | 10.3 Channel selection 10.3.1 Valid channels 10.3.2 Invalid channels 10.4 Internal GNSS receiver |
| 47 | 10.5 AIS information 10.5.1 Information content 10.5.2 Information update intervals |
| 49 | 10.6 Initialisation period 10.6.1 Purpose 10.6.2 Method of measurement 10.6.3 Required results 10.7 Alarms and indications, fall-back arrangements 10.7.1 Built in integrity test |
| 50 | 10.7.2 Transceiver protection 10.7.3 Transmitter shutdown procedure 10.7.4 Position sensor fallback conditions |
| 51 | 10.8 User interface 10.8.1 Status indication 10.8.2 Message display |
| 52 | 10.8.3 Static data input |
| 53 | 11 Physical tests 11.1 TDMA transmitter 11.1.1 Frequency error 11.1.2 Carrier power Figure 4 – Measurement arrangement for carrier power |
| 54 | 11.1.3 Transmission spectrum |
| 56 | 11.1.5 Transmitter output power versus time function Table 12 – Peak frequency deviation versus time |
| 57 | 11.2 TDMA receivers 11.2.1 Sensitivity Figure 7 – Measurement arrangement |
| 58 | 11.2.2 Error behaviour at high input levels 11.2.3 Co-channel rejection |
| 59 | 11.2.4 Adjacent channel selectivity Figure 8 – Measurement arrangement with two generators |
| 60 | 11.2.5 Spurious response rejection |
| 61 | Figure 9 – SINAD or PER/BER measuring equipment |
| 62 | 11.2.6 Intermodulation response rejection |
| 63 | Figure 10 – Measurement arrangement for intermodulation Table 13 – Frequencies for intermodulation test |
| 64 | 11.2.7 Blocking or desensitisation 11.3 Conducted spurious emissions 11.3.1 Spurious emissions from the receiver |
| 65 | 11.3.2 Spurious emissions from the transmitter 12 Specific tests of Link layer |
| 66 | 12.1 TDMA synchronisation 12.1.1 Synchronisation test using UTC direct and indirect 12.1.2 Synchronisation test without UTC, EUT receiving semaphore |
| 67 | 12.2 Time division (frame format) 12.2.1 Purpose 12.2.2 Method of measurement 12.2.3 Required results 12.3 Synchronisation jitter 12.3.1 Definition 12.3.2 Purpose 12.3.3 Method of measurement 12.3.4 Required results 12.4 Data encoding (bit stuffing) 12.4.1 Purpose 12.4.2 Method of measurement |
| 68 | 12.4.3 Required results 12.5 Frame check sequence 12.5.1 Purpose 12.5.2 Method of measurement 12.5.3 Required results 12.6 Slot allocation (Channel access protocols) 12.6.1 Network entry 12.6.2 Autonomous scheduled transmissions (SOTDMA) |
| 69 | 12.6.3 Autonomous scheduled transmissions (ITDMA) 12.6.4 Transmission of Messages 24A and 24B (ITDMA) 12.6.5 Assigned operation |
| 71 | 12.6.6 Group assignment |
| 75 | 12.6.7 Base station reservations |
| 76 | 12.7 Message formats 12.7.1 Received messages 12.7.2 Transmitted messages 13 Specific tests of network layer 13.1 Regional area designation by VDL Message 13.1.1 Purpose 13.1.2 Method of measurement |
| 77 | 13.1.3 Required results Figure 11 – Regional transitional zones Table 14 – Regional area scenario Table 15 – Required channels in use |
| 78 | 13.2 Channel management by addressed Message 22 13.2.1 Purpose 13.2.2 Method of measurement 13.2.3 Required results 13.3 Invalid regional operating areas 13.3.1 Purpose 13.3.2 Method of measurement 13.3.3 Required test results 13.4 Continuation of autonomous mode reporting interval 13.4.1 Purpose |
| 79 | 13.4.2 Method of test 13.4.3 Required result 13.5 Slot reuse and FATDMA reservations 13.5.1 Method of measurement 13.5.2 Required results 13.6 Other features |
| 80 | Annex A (normative)DSC channel management |
| 81 | Table A.1 – DSC monitoring times |
| 88 | Annex B (normative)Calculation of area size Table B.1 – Coordinate points |
| 89 | Bibliography |
