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BS EN 62287-1:2017

BS EN 62287-1:2017

$215.11

Maritime navigation and radiocommunication equipment and systems. Class B shipborne equipment of the automatic identification system (AIS) – Carrier-sense time division multiple access (CSTDMA) techniques

Published By Publication Date Number of Pages
BSI 2017 102
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PDF Catalog

PDF Pages PDF Title
2 National foreword
5 Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
7 CONTENTS
13 FOREWORD
15 INTRODUCTION
16 1 Scope
2 Normative references
17 3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms
18 4 General requirements
4.1 General
4.1.1 Capabilities of the Class B "CS" AIS
4.1.2 Quality assurance
19 4.1.3 Safety of operation
4.1.4 Additional features
4.1.5 Modes of operation
20 4.2 Manuals
4.3 Marking and identification
5 Environmental, power supply, interference and safety requirements
21 6 Performance requirements
6.1 Composition
6.2 Operating frequency channels
6.3 GNSS receiver for position reporting
22 6.4 Identification
6.5 AIS information
6.5.1 Information content
23 6.5.2 Information reporting intervals
6.5.3 Permissible initialisation period
6.6 Alarms and indications, fall-back arrangements
6.6.1 Integrity and protection
24 6.6.2 Transmitter shutdown procedure
6.6.3 Position sensor fallback conditions
Tables
Table 1 – Position sensor fallback conditions
25 6.6.4 SOG/COG sensor fallback conditions
6.7 User interface
6.7.1 Indicators and display
6.7.2 Static data input
6.7.3 External interfaces
Table 2 – Use of accuracy (PA) flag
26 6.8 Protection from invalid control commands
7 Technical requirements
7.1 General
27 7.2 Physical layer
7.2.1 General
7.2.2 Transceiver characteristics
Figures
Figure 1 – OSI layer model
28 Table 3 – Transceiver characteristics
29 7.2.3 Transmitter requirements
7.2.4 Receiver requirements
Table 4 – Transmitter parameters
30 7.3 Link layer
7.3.1 General
7.3.2 Link sublayer 1: Medium access control (MAC)
Table 5 – Receiver parameters
32 Figure 2 – Carrier-sense timing
33 7.3.3 Link sublayer 2: Data Link Service (DLS)
Figure 3 – Power versus time mask
Table 6 – Definition of timings for Figure 3
34 Figure 4 – Transmission packet
35 Figure 5 – Training sequence
Table 7 – Start-buffer
36 Table 8 – Summary of the transmission packet
37 Figure 6 – Transmission timing
Table 9 – Transmission timing
38 7.3.4 Link sublayer 3: Link management entity (LME)
Figure 7 – Example for CSTDMA access
Table 10 – Access parameters
41 Table 11 – Use of VDL messages by a Class B "CS" AIS
42 Table 12 – Number of data bits for use with Message 14
43 Table 13 – Contents of Message 18
44 Table 14 – Message 24 Part A
Table 15 – Message 24 Part B
45 Table 16 – Contents of Message 23
46 7.4 Network layer
7.4.1 General
7.4.2 Dual channel operation
Table 17 – Reporting interval settings for use with Message 23
47 7.4.3 Channel management
7.4.4 Distribution of transmission packets
7.4.5 Data link congestion resolution
7.5 Transport layer
7.5.1 General
Table 18 – Channel management
48 7.5.2 Transmission packets
7.5.3 Sequencing of data packets
7.6 Digital selective calling (DSC)
8 Test conditions
8.1 General
8.2 Normal and extreme test conditions
8.2.1 Normal test conditions
8.2.2 Extreme test conditions
8.3 Test signals
49 8.3.1 Standard test signal number 1
8.3.2 Standard test signal number 2
8.3.3 Standard test signal number 3
8.3.4 Standard test signal number 4
8.3.5 Standard test signal number 5
Figure 8 – Format for repeating four-packet cluster
50 8.4 Test arrangements
8.4.1 Standard test environment
Table 19 – Content of first two packets
Table 20 – Fixed PRS data derived from ITU-T O.153
51 8.4.2 Modes of operation of the transmitter
8.4.3 Common test conditions for protection from invalid controls
8.4.4 Measurement uncertainties
52 9 Power supply, environmental and EMC tests
9.1 Test summary
53 Table 21 – Test summary
54 9.2 Vibration/shock
9.2.1 Vibration
9.2.2 Shock
9.3 Performance tests/checks
55 9.4 Undervoltage test (brown out)
9.4.1 Purpose
9.4.2 Method of test
9.4.3 Required result
10 Operational tests
10.1 General
10.1.1 Quality assurance
10.1.2 Safety of operation
10.1.3 Additional features
56 10.2 Modes of operation
10.2.1 Autonomous mode
57 10.2.2 Assigned mode
58 10.2.3 Polled mode/interrogation response
59 10.3 Messages extending one time period
10.3.1 Method of measurement
10.3.2 Required results
10.4 Channel selection
10.4.1 Valid channels
10.4.2 Invalid channels
10.5 Internal GNSS receiver
60 10.6 AIS information
10.6.1 Information content
61 10.6.2 Information update rates
62 10.7 Initialisation period
10.7.1 Method of measurement
10.7.2 Required results
10.8 Alarms and indications, fall-back arrangements
10.8.1 Built-in integrity test
63 10.8.2 Transceiver protection
10.8.3 Transmitter shutdown procedure
10.8.4 Position sensor fallback conditions
64 10.8.5 Speed sensors
10.9 User interface
10.9.1 Display
10.9.2 Message display
65 10.9.3 Static data input
10.9.4 External interfaces
11 Physical tests
11.1 TDMA transmitter
11.1.1 Frequency error
66 11.1.2 Carrier power
11.1.3 Transmission spectrum
Figure 9 – Measurement arrangement for carrier power
67 11.1.4 Modulation accuracy
Figure 10 – Emission mask
68 11.1.5 Transmitter output power versus time function
Figure 11 – Measurement arrangement for modulation accuracy
Table 22 – Peak frequency deviation versus time
69 11.2 TDMA receivers
11.2.1 Sensitivity
Figure 12 – Measurement arrangement
70 11.2.2 Error behaviour at high input levels
11.2.3 Co-channel rejection
71 11.2.4 Adjacent channel selectivity
Figure 13 – Measurement arrangement with two generators
72 11.2.5 Spurious response rejection
73 Figure 14 – SINAD or PER/BER measuring equipment
74 11.2.6 Intermodulation response rejection
75 11.2.7 Blocking or desensitisation
Figure 15 – Measurement arrangement for intermodulation
Table 23 – Frequencies for inter-modulation test
76 11.3 Conducted spurious emissions
11.3.1 Spurious emissions from the receiver
77 11.3.2 Spurious emissions from the transmitter
12 Specific tests of link layer
12.1 TDMA synchronisation
12.1.1 Synchronisation test sync mode 1
78 12.1.2 Synchronisation test sync mode 2
79 12.1.3 Synchronisation test with UTC
12.2 Carrier-sense tests
12.2.1 Threshold level
80 12.2.2 Carrier-sense timing
Figure 16 – Configuration for carrier-sense threshold test
Table 24 – Required threshold test results
81 12.3 VDL state/reservations
12.3.1 Method of measurement
12.3.2 Required results
12.4 Data encoding (bit stuffing)
12.4.1 Method of measurement
12.4.2 Required results
12.5 Frame check sequence
12.5.1 Method of measurement
12.5.2 Required results
Table 25 – Required carrier-sense timing results
82 12.6 Slot allocation (channel access protocol)
12.6.1 Autonomous mode allocation
12.6.2 DSC listening periods
12.7 Assigned operation
12.7.1 Assignment priority
83 12.7.2 Entering rate assignment
12.7.3 Reverting from rate assignment
12.7.4 Reverting from quiet mode
12.7.5 Retry of interrogation response
84 12.8 Message formats
12.8.1 Received messages
12.8.2 Transmitted messages
13 Specific tests of network layer
13.1 Regional area designation by VDL message
13.1.1 Method of measurement
85 13.1.2 Required results
13.2 Regional area designation by serial message or manually
13.2.1 Method of measurement
13.2.2 Required result
13.3 Management of received regional operating settings
13.3.1 Replacement or erasure of dated or remote regional operating settings
Figure 17 – Regional area scenario
Table 26 – Required channels in use
86 13.3.2 Channel management by addressed Message 22
87 13.3.3 Invalid regional operating areas
13.3.4 Continuation of autonomous mode reporting rate
13.3.5 Other conditions
88 Annexes
Annex A (informative) Results of computer simulations and testing of CSTDMA technology
A.1 Computer simulations
Figure A.1 – Effect on Class A AIS messages of Class B messages
89 A.2 Carrier-sense tests
Figure A.2 – Reception of messages by Class A AIS
Figure A.3 – Reception of messages by Class B AIS
90 A.3 Range tests
A.4 Conclusion
Figure A.4 – Range achieved by a Class A AIS from Class B AIS
91 Annex B (informative) Description of the system
92 Annex C (normative) DSC channel management
C.1 DSC functionality
C.2 DSC time sharing
93 C.3 DSC functionality tests
C.3.1 General
C.3.2 Regional area designation
C.3.3 Scheduling
C.3.4 DSC flag in Message 18
C.3.5 DSC monitoring time plan
Table C.1 – DSC monitoring times
94 C.3.6 Replacement or erasure of dated or remote regional operating settings
C.3.7 Test of addressed telecommand
95 C.3.8 Invalid regional operating areas
C.4 DSC receiver tests
C.4.1 General
C.4.2 Maximum sensitivity
96 C.4.3 Error behaviour at high input levels
C.4.4 Co-channel rejection
C.4.5 Adjacent channel selectivity
97 C.4.6 Spurious response rejection
C.4.7 Intermodulation response rejection
98 C.4.8 Blocking or desensitisation
99 Annex D (informative) Channel management regions
Figure D.1 – Channel management regions used for test given in 13.3.1
100 Bibliography

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BS EN 62287-1:2017
$215.11