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IEC 61924-2
Edition 2.0 2021-02
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Maritime navigation and radiocommunication equipment and systems –
Integrated navigation systems (INS) –
Part 2: Modular structure for INS – Operational and performance requirements,
methods of testing and required test results
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IEC 61924-2
Edition 2.0 2021-02
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Maritime navigation and radiocommunication equipment and systems –
Integrated navigation systems (INS) –
Part 2: Modular structure for INS – Operational and performance requirements,
methods of testing and required test results
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 47.020.70 ISBN 978-2-8322-9441-3
– 2 – IEC 61924-2:2021 RLV © IEC 2021
CONTENTS
FOREWORD . 8
1 Scope . 10
2 Normative references . 10
3 Terms, definitions and abbreviated terms . 11
3.1 Terms and definitions . 11
3.2 Abbreviated terms . 20
4 MSC IMO resolutions . 21
4.1 General . 21
4.2 Purpose of integrated navigation systems . 22
4.3 Application . 23
5 Test requirements and results . 25
5.1 General . 25
5.2 Exceptions for tests previously performed . 25
5.3 Test site . 26
5.4 Methods of test . 26
6 Module A – Requirements for integration of navigational information . 26
6.1 Interfacing and data exchange . 26
6.1.1 Combination, processing and evaluation of data . 26
6.1.2 Availability, validity and integrity . 26
6.1.3 Failure of data exchange . 27
6.1.4 Interfaces in general . 27
6.1.5 Interface to alert management . 27
6.2 Accuracy . 27
6.2.1 Requirement . 27
6.2.2 Methods of test and required results . 28
6.3 Validity, plausibility, latency . 28
6.3.1 Validity . 28
6.3.2 Plausibility . 29
6.3.3 Latency. 30
6.4 Consistent common reference system (CCRS) . 30
6.4.1 Consistency of data . 30
6.4.2 Consistent common reference point (CCRP) . 31
6.4.3 Consistency of thresholds . 32
6.5 Integrity monitoring . 33
6.5.1 Requirement . 33
6.5.2 Methods of test and required results . 34
6.6 Marking of data . 35
6.6.1 Requirement . 35
6.6.2 Methods of tests and required results . 36
6.7 Selection of sensors and sources . 36
6.7.1 Requirement . 36
6.7.2 Methods of test and required results . 37
7 Module B – Task related requirements for integrated navigation systems . 37
7.1 Description . 37
7.2 Task and functional requirements for an INS . 37
7.2.1 General . 37
7.2.2 Task "Route planning" . 38
7.2.3 Task "Route monitoring" . 40
7.2.4 Task "Collision avoidance" . 44
7.2.5 Task "Navigation control data" . 48
7.2.6 Task "Alert management" . 50
7.2.7 Task "Status and data display" . 50
7.3 Functional requirements for INS task stations . 52
7.3.1 Number of task stations . 52
7.3.2 Track control . 53
7.3.3 Automatic control functions . 54
7.4 Functional requirements for displays of INS . 55
7.4.1 General . 55
7.4.2 Default display configurations and operational modes . 58
7.4.3 Mode and status awareness . 59
7.4.4 Information display . 60
7.5 Human machine interface . 61
7.5.1 General . 61
7.5.2 System Equipmen design . 62
7.5.3 Display . 62
7.5.4 Input . 62
7.6 INS back-up requirements and redundancies . 63
7.6.1 General . 63
7.6.2 Hardware redundancies (back-up) . 65
7.7 System failures and fallback arrangement . 65
7.7.1 General description . 65
7.7.2 Restored operation . 65
7.7.3 Failure or change of sensor for automatic control function . 66
7.7.4 Failure of sensor . 66
7.7.5 Storage of system related parameters . 67
7.7.6 Safe response to malfunction. 67
7.7.7 Alert management . 68
7.7.8 Fallback for navigational information failure . 69
7.8 Technical requirements . 70
7.8.1 General . 70
7.8.2 Hardware and/or processors . 71
7.8.3 Power supply . 71
7.8.4 Power interruptions and shutdown . 72
7.8.5 Data communication interface and protocols . 73
7.8.6 Installation . 73
8 Module C – Alert management . 74
8.1 Description .
8.1.1 Purpose of alert management .
8.1.2 Scope of alert management .
8.1.3 Application of alert management .
8.2 General requirements .
8.2.1 Provisions .
8.2.2 Number of alerts for one situation .
– 4 – IEC 61924-2:2021 RLV © IEC 2021
8.2.3 Alerts to be handled by the alert management .
8.2.4 Logical architecture of the alert management .
...