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BS EN 61993-2:2013

$215.11

Maritime navigation and radiocommunication equipment and systems. Automatic Identification Systems (AIS) – Class A shipborne equipment of the automatic identification system (AIS). Operational and performance requirements, methods of test and required test results

Published By Publication Date Number of Pages
BSI 2013 136
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This part of IEC 61993 specifies the minimum operational and performance requirements, methods of testing and required test results conforming to performance standards adopted by the IMO in Resolution MSC.74(69), Annex 3, Shipborne Automatic Identification System. This standard incorporates the applicable technical characteristics of Class A shipborne equipment included in Recommendation ITU-R M.1371-4 and takes into account the ITU Radio Regulations, where applicable. In addition, it takes account of IMO Resolution A.694(17) to which IEC 60945 is associated. When a requirement in this standard is different from IEC 60945, the requirement of this standard takes precedence.

This part of IEC 61993 also specifies the minimum requirements both for the means to input and display data and for the interfaces to other equipment suitable to be used as means of input and display data.

NOTE All text of this standard, that is identical to that in IMO resolution MSC.74(69), Annex 3 or to that in ITU-R Recommendation M.1371-4 is printed in italics and references to the resolution (abbreviated to “A3”) or the recommendation (abbreviated to “M.1371”) and paragraph numbers are indicated in parentheses, for instance (A3/3.3) or (M.1371/A2-3.3) respectively.

PDF Catalog

PDF Pages PDF Title
8 CONTENTS
15 INTRODUCTION
16 1 Scope
2 Normative references
17 3 Abbreviations
18 4 General requirements
4.1 General
4.1.1 Overview
4.1.2 General requirements
19 4.1.3 Capabilities of the AIS
4.1.4 Additional requirements
4.1.5 Transmitter shutdown procedure
4.1.6 Quality assurance
4.2 Modes of operation
4.3 Manuals
20 4.4 Marking and identification
5 Other requirements
5.1 Environmental, power supply, special purpose and safety requirements
5.2 Display of information
6 Performance requirements
6.1 Composition
21 6.2 Time and position
6.2.1 Source for UTC
6.2.2 Source for AIS position reporting
6.3 User interface
22 6.4 Identification
6.5 Information
6.5.1 Information provided by the AIS
23 6.5.2 Information reporting intervals
6.5.3 Ship reporting capacity
Table 1 – Information reporting intervals for autonomous mode
24 6.6 Event log
6.7 Permissible initialization period
6.8 Power supply
6.9 Technical characteristics
6.10 Alarms and indications, fall-back arrangements
6.10.1 Built-in test equipment
25 6.10.2 Alarm messages
26 Table 2 – Integrity alarm conditions signalled using ALR sentence formatter
27 6.10.3 Status messages
Table 3 – Sensor status indications signalled using TXT sentence formatter
28 Table 4 – Position sensor fallback conditions
29 Table 5 – Use of accuracy (PA) flag
30 6.11 Display, input and output
6.11.1 Minimum keyboard and display (MKD)
Table 6 – ROT sensor fallback conditions
31 Table 7 – Message display on MKD
32 6.11.2 Communication test
Table 8 – Position quality
33 6.11.3 Alarms and status information
6.11.4 Data protection
6.11.5 Distance calculation
34 6.12 Protection from invalid controls
7 Technical requirements
7.1 General
7.2 Physical layer
Figures
Figure 1 – OSI layer model
Tables
35 7.2.1 General
7.2.2 Transmitter parameters
Figure 2 – Power versus time characteristics
Table 9 – Transmitter parameters
36 7.2.3 Receiver parameters
7.3 Link layer
7.3.1 General
Table 10 – Power versus time characteristics
Table 11 – Receiver parameters
37 7.3.2 Link sublayer 1: Medium Access Control (MAC)
7.3.3 Link sublayer 2: Data Link Service (DLS)
7.3.4 Link sublayer 3 – Link Management Entity (LME)
Table 12 – Use of VDL messages
39 7.4 Network layer
7.4.1 General
7.4.2 Management of regional operating settings
41 7.5 Transport layer
7.6 Presentation interface
7.6.1 General
Table 13 – Presentation interface access
42 7.6.2 Automatic input of sensor data
7.6.3 High speed input/output ports
Table 14 – IEC 61162-1 sensor sentences
43 Table 15 – AIS High-speed input data and formats
44 Table 16 – AIS high-speed output data and formats
45 7.6.4 Long-range communication ports
46 Table 17 – AIS Long-range communications input data and formats
47 7.6.5 BIIT alarm output
8 Long-range applications
8.1 General
8.2 Long-range application by two-way interface
8.2.1 General
Table 18 – LR output data formats
48 8.2.2 Interrogations and responses
8.2.3 Manual and automatic response
8.2.4 Data formats and contents
8.2.5 Addressing AIS-units
Table 19 – LR data types
49 8.3 Long-range application by broadcast
9 Test conditions
9.1 Normal and extreme test conditions
9.1.1 Normal test conditions
9.1.2 Extreme test conditions
50 9.2 Standard test environment
9.3 Additional test arrangements
9.3.1 Arrangements for test signals applied to the receiver input
9.3.2 Encoder for receiver measurements
9.3.3 Waiver for receivers
51 9.3.4 Impedance
9.3.5 Artificial antenna (dummy load)
9.3.6 Facilities for access
9.3.7 Modes of operation of the transmitter
9.4 Common test conditions for protection from invalid controls
9.5 Measurement uncertainties
52 10 Test signals
10.1 Standard test signal number 1 (DSC)
10.2 Standard test signal number 2 (TDMA)
10.3 Standard test signal number 3 (TDMA)
10.4 Standard test signal number 4 (PRBS)
10.5 Standard test signal number 5 (PRBS)
Figure 3 – Format for repeating four-packet cluster
53 11 Power supply, special purpose and safety tests
12 Environmental tests
Table 20 – Content of first two packets
Table 21 – Fixed PRS data derived from Recommendation ITU-T O.153
54 13 EMC tests
14 Operational tests
14.1 Identification and operating modes
14.1.1 Autonomous mode
55 14.1.2 Assigned mode
14.1.3 Polled mode
56 14.1.4 Addressed operation
14.1.5 Broadcast operation
57 14.1.6 Multiple slot messages
14.2 Information
58 14.2.1 Information provided by the AIS
14.2.2 Reporting intervals
59 14.3 Event log
60 14.3.1 Method of measurement
14.3.2 Required results
14.4 Initialization period
14.4.1 Method of measurement
14.4.2 Required results
14.5 Technical characteristics
14.5.1 Channel selection
61 14.5.2 Transceiver protection
14.5.3 Automatic power setting
14.6 Alarms and indicators, fall-back arrangements
14.6.1 Loss of power supply
14.6.2 Monitoring of functions and integrity
63 14.6.3 Monitoring of sensor data
66 14.7 Display, input and output
14.7.1 Data input/output facilities
14.7.2 Initiate message transmission
67 14.7.3 Communication test
14.7.4 System control
68 14.7.5 Display of received targets
69 14.7.6 Display of position quality
14.7.7 Display of targets if optional filter is implemented
70 14.7.8 Display of received safety related messages
14.7.9 Presentation of navigation information
15 Physical tests
71 15.1.3 Slotted transmission spectrum
Figure 6 – Emission mask for slotted transmission
74 15.2 TDMA receivers
15.2.1 Sensitivity
Figure 8 – Measurement arrangement
75 15.2.2 Error behaviour at high input levels
15.2.3 Co-channel rejection
Figure 9 – Measurement arrangement with two generators
76 15.2.4 Adjacent channel selectivity
15.2.5 Spurious response rejection
78 Figure 10 – SINAD or PER/BER measuring equipment
79 15.2.6 Intermodulation response rejection and blocking
Figure 11 – Test set-up
80 15.2.7 Transmit to receive switching time
Figure 12 – Transmit to receive switching time measurement setup
Table 23 – Tests to be performed
81 15.2.8 Immunity to out-of-band energy
15.3 Conducted spurious emissions
15.3.1 Spurious emissions from the transmitter
82 15.3.2 Spurious emissions from the receiver
16 Specific tests of link layer
16.1 TDMA synchronisation
16.1.1 Synchronisation test using UTC
83 16.1.2 Synchronisation test using UTC with repeated messages
16.1.3 Synchronisation test without UTC, semaphore
84 16.1.4 Synchronisation test without UTC
16.1.5 Reception of un-synchronised messages
16.2 Time division (frame format)
16.2.1 Method of measurement
16.2.2 Required results
85 16.3 Synchronisation and jitter accuracy
16.3.1 Definition
16.3.2 Method of measurement
16.3.3 Required results
16.4 Data encoding (bit stuffing)
16.4.1 Method of measurement
16.4.2 Required results
16.5 Frame check sequence
16.5.1 Method of measurement
16.5.2 Required results
86 16.6 Slot allocation (channel access protocols)
16.6.1 Network entry
16.6.2 Autonomous scheduled transmissions (SOTDMA)
16.6.3 Autonomous scheduled transmissions (ITDMA)
87 16.6.4 Safety related/binary message transmission
16.6.5 Transmission of Message 5 (ITDMA)
16.6.6 Assigned operation
88 16.6.7 Group assignment
92 16.6.8 Fixed allocated transmissions (FATDMA)
16.6.9 Randomisation of message transmissions
16.7 Message formats
16.7.1 Received messages
93 16.7.2 Transmitted messages
17 Specific tests of network layer
17.1 Dual channel operation – Alternate transmissions
17.1.1 Method of measurement
17.1.2 Required results
17.2 Regional area designation by VDL message
17.2.1 Method of measurement
94 17.2.2 Required results
17.3 Regional area designation by serial message
Figure 13 – Regional area scenario
Table 24 – Primary channels for each region
95 17.4 Regional area designation with lost position
17.4.1 Method of measurement
17.4.2 Required results
17.5 Power setting
17.5.1 Method of measurement
17.5.2 Required results
17.6 Message priority handling
17.6.1 Method of measurement
17.6.2 Required results
17.7 Slot reuse and FATDMA reservations
17.7.1 Method of measurement
96 17.7.2 Required results
17.8 Management of received regional operating settings
17.8.1 Test for replacement or erasure of dated or remote regional operating settings
97 17.8.2 Test of correct input via presentation interface or MKD
98 17.8.3 Test of addressed telecommand
17.8.4 Test for invalid regional operating areas
99 17.9 Continuation of autonomous mode reporting interval
17.9.1 Method of test
17.9.2 Required results
18 Specific tests of transport layer
18.1 Addressed messages
18.1.1 Transmission
18.1.2 Acknowledgement
18.1.3 Transmission retry
100 18.1.4 Acknowledgement of addressed safety related messages
18.1.5 Behaviour of NavStatus 14 reception
18.2 Interrogation responses
18.2.1 Method of measurement
18.2.2 Required results
101 19 Specific presentation interface tests
19.1 General
19.2 Checking manufacturer’s documentation
19.3 Electrical test
19.3.1 Method of test
19.3.2 Required results
19.4 Test of input sensor interface performance
19.4.1 Method of measurement
102 19.4.2 Required results
19.5 Test of sensor input
19.5.1 Test of GNS input
19.5.2 Test of RMC input
103 19.5.3 Test of DTM input
19.5.4 Test of GBS input
104 19.5.5 Test of VBW input
19.5.6 Test of VTG input
105 19.5.7 Test of HDT/THS input
19.5.8 Test of ROT input
106 19.5.9 Test of different inputs
19.5.10 Test of multiple inputs
107 19.6 Test of high speed output
19.6.1 Method of measurement
19.6.2 Required results
19.7 High speed output interface performance
19.7.1 Method of measurement
19.7.2 Required results
19.8 Output of undefined VDL messages
19.8.1 Method of measurement
19.8.2 Required results
19.9 Test of high speed input
19.9.1 Method of measurement
108 19.9.2 Required results
20 Long-range functionality tests
20.1 Long-range application by two-way interface
20.1.1 LR interrogation
20.1.2 LR “all ships” interrogation
109 20.1.3 Consecutive LR “all ships” interrogations
20.2 Long-range application by broadcast
20.2.1 Long-range broadcast
110 20.2.2 Multiple assignment operation
112 Annex A (informative) Block diagram of AIS
113 Annex B (normative) AIS interface overview (see Table 13)
114 Annex C (informative) Block diagram of standard test environment
115 Annex D (normative) DSC functionality
118 Figure D.1 – Measurement arrangement for inter-modulation
121 Annex E (informative) Optional PI port sentences
122 Table E.1 – Property identifier
125 Annex F (informative) Alarm handling
126 Annex G (normative) Calculation of area size and distance
Table G.1 – Coordinate points
129 Annex H (normative) Transmission of binary Messages 25 and 26
133 Bibliography
BS EN 61993-2:2013
$215.11