Resolution
MSC.64(67)
ADOPTION OF NEW AND AMENDED PERFORMANCE STANDARDS.
(adopted on 4 December 1996)
THE
MARITIME SAFETY COMMITTEE,
RECALLING
Article 28(b) of the Convention on the International Maritime Organization
concerning the functions of the Committee,
RECALLING
ALSO resolution A.825(19), by which the Assembly resolved that the functions of
adopting performance standards for radio and navigational equipment, as well as
amendments thereto, shall be performed by the Maritime Safety Committee on behalf
of the Organization,
HAVING
CONSIDERED new performance standards and amendments to existing performance
standards adopted by the Assembly prepared by the forty-second session of the
Sub-Committee on Safety of Navigation,
1.
ADOPTS the following new and recommended performance standards, set out in
Annexes 1 to 2 to the present resolution:
(a)
Recommendation on Performance Standards for Integrated Bridge Systems (IBS)
(Annex 1);
(b)
Recommendation on Performance Standards for Shipborne DGPS and DGLONASS
Maritime Radio Beacon Receiver Equipment (Annex 2);
2.
ALSO ADOPTS the amendments to the following performance standards adopted by
the Assembly, set out in Annexes 3 to 5 to the present resolution:
(a) Resolution
A.342(IX) - Recommendation on Performance Standards for Automatic Pilots (Annex
3);
(b) Resolution
A.447(XII) - Recommendation on Performance Standards for Radar Equipment (Annex
4);
(c) Resolution
A.817(19) - Recommendation on Performance Standards for Electronic Chart
Display and Information Systems (ECDIS) (Annex 5);
3.
RECOMMENDS Member Governments to ensure that:
(a) integrated
bridge systems (IBS), shipborne DGPS and DGLONASS maritime radio beacon
receiver equipment and electronic chart display and information system (ECDIS)
installed on or after 1 January 1999 conform to performance standards not
inferior to those set out in the Annexes 1, 2 and 5 to the present resolution;
(b) heading
control systems and radar equipment installed on or after 1 January 1999
conform respectively to performance standards not inferior to those set out in
Annexes 3 and 4 to the present resolution;
(c) automatic
pilots and radar equipment installed before 1 January 1999 conform at least to
the performance standards set out in resolutions A.342(IX) and A.477(XII),
respectively.
Annex 1.
RECOMMENDATION ON PERFORMANCE STANDARDS FOR INTEGRATED BRIDGE SYSTEMS (IBS).
1.1
An integrated bridge system (IBS) is defined as a combination of systems which
are interconnected in order to allow centralized access to sensor information
or command/control from workstations, with the aim of increasing safe and
efficient ship's management by suitably qualified personnel.
1.2
IBS, in addition to meeting the functional requirements contained in applicable
IMO instruments, the general requirements in resolution A.694(17)*, should
comply with the following performance standards.
______________
The
IBS should support systems performing two or more of the following operations:
.1 passage
execution;
.2
communications;
.3 machinery
control
.4 loading,
discharging and cargo control; and
.5 safety and
security.
3.1.1
The IBS should comply with all applicable IMO requirements and recommendations.
Parts executing multiple operations should meet the requirements specified for
each individual function they control, monitor or perform.
3.1.2
Each "part" of an IBS should
meet the relevant requirements of resolution A.694(17) and their associated
technical testing standards. In consequence, the IBS is in compliance with
these requirements without further environmental testing.
Note:
"part" is meant to be - for example - an individual module, equipment
or subsystem.
3.1.3
A failure of one part should not affect the functionality of other parts except
for those functions directly dependent upon the information from the defective
part.
The
IBS should provide functional integration meeting the following requirements:
.1 The
functionality of the IBS should ensure that its operation is at least as
effective as for stand-alone equipment.
.2 Continuously
displayed information should be reduced to the minimum necessary for safe
operation of the ship. Supplementary information should be readily accessible.
.3 Where
multifunction displays and controls are used to perform functions necessary for
safe operation of the ship they should be duplicated and interchangeable.
.4 It should be
possible to display the complete system configuration, the available
configuration and the configuration in use.
.5 Each part to
be integrated should provide details of its operational status and the latency
and validity of essential information. Means should be provided within the IBS
to make use of this information.
.6 An
alternative means of operation should be provided for essential functions.
.7 An
alternative source of essential information should be provided. The IBS should
identify loss of either source.
.8 The source of
information (sensor, result of calculation or manual input) should be displayed
continuously or upon request.
3.3.1
Interfacing to an IBS should comply with the relevant international marine
interface standards.*
____________
3.3.2
Data exchange should be consistent with safe operation of the ship.
3.3.3
The integrity of data flowing on the network should be ensured.
3.3.4
A failure in the connectivity should not affect independent functionality.
3.4.1
A failure analysis should be performed, documented and be acceptable.
4.1.1
The IBS should be capable of being operated by personnel holding appropriate
certificates.
4.1.2
The Man Machine Interface (MMI) should be designed to be easily understood and
in a consistent style for all integrated functions.
4.1.3
Where multifunction displays are used, they should be in colour, and
continuously displayed information and functional areas, e.g. menus should be
presented in a consistent manner.
4.1.4
F actions which may cause unintended results, the IBS should request
confirmation from the operator.
4.2.1
It should always be clear, from where essential functions may be performed .
4.2.2
The system management should ensure, that one user only has the focus of an
input or function at the same time. If so, all other users should be informed
about that by the IBS.
In
order to ensure an adequate system functionality the sensors employed should
ensure communication compatibility in accordance with the relevant
international marine interface standard*; and
provide information about their operational status and about the latency and
validity of essential information.
_____________
5.2.1
The IBS alarm management, as a minimum, should comply with the requirements of
the Code on Alarms and Indicators, 1995 (resolution A.830(19)).
5.2.2
Appropriate alarm management on priority and functional groups should be
provided within the IBS.
5.2.3
The number of alarm types and their release should be kept as low as possible
by providing indications for information of lower importance.
5.2.4
Alarms should be displayed so that the alarm reason and the resulting
functional restrictions can be easily understood. Indications should be
self-explanatory.
5.3 Power interruptions and
shut-down
5.3.1
If subjected to an orderly shut-down, the IBS should, upon turn-on, come to an
initial default state.
5.3.2
After a power interruption full functionality of the IBS should be available
after recovery 000 of all subsystems. The IBS should not increase the recovery
time of individual subsystem functions after power restoration.
5.3.3
If subjected to a power interruption the IBS should, upon restoration of power,
maintain the configuration in use and continue automated operation, as far as
practicable. Safety related automatic functions should only be restored upon
confirmation by the operator.
5.4.1
Power supply requirements applying to parts of the IBS as a result of other IMO
requirements should remain applicable.
5.4.2
The IBS should be supplied:
.1 from the main
and emergency sources of electrical power with automated changeover through a
local distribution board with provision to preclude inadvertent shut-down;
.2 from a
transitional source of electrical power for a duration of not less than 1 min;
and
.3 where
required, parts of the IBS should also be supplied from a reserve source of
electrical power.
Annex 2.
RECOMMENDATION ON PERFORMANCE STANDARDS FOR SHIPBORNE DGPS AND DGLONASS
MARITIME RADIO BEACON RECEIVER EQUIPMENT
1.1
Differential services broadcast information for augmenting the Global
Positioning System (GPS) and the Global Navigation Satellite System (GLONASS)
to provide the accuracy and integrity required for entrances and harbour
approaches and other waters in which the freedom to manoeuvre is limited.
Various service providers are broadcasting differential information applicable
to localized areas. Different services provide information for augmenting GPS,
GLONASS, or both.
1.2
Receiver equipment for the reception and proper decoding of differential GPS
and GLONASS maritime radio beacon broadcasts (fully compliant with ITU-R M.823)
intended for navigational purposes on ships with maximum speeds not exceeding
50 kts shall, in addition to the general requirements contained in resolution
A.694(17)*, comply with the following minimum
performance requirements.
_____________
*Refer
to IEC 945 Publication.
1.3
This standard covers the basic requirements of maritime radio beacon receiver
equipment providing augmentation information to position-fixing equipment. It
does not cover other computational facilities which may be in the equipment.
2. DGPS and dglonass maritime radio beacon receiver
equipment
The
words "DGPS and DGLONASS maritime radio beacon receiver equipment" as
used in this performance standard includes all the components and units
necessary for the system to properly perform its intended functions. The
equipment should include the following minimum facilities:
.1 antenna
capable of receiving DGPS or DGLONASS maritime radio beacon signals;
.2 DGPS and
DGLONASS maritime radio beacon receiver and processor;
.3 receiver
control interface; and
.4 data output
interface.
The
DGPS and DGLONASS maritime radio beacon receiver equipment should:
.1 operate in
the band of 283.5 to 315 kHz in Region 1 and 285 to 325 kHz in Regions 2 and 3
in accordance with ITU-R M.823;
.2 provide means
of automatically and manually selecting the frequency, but operator
acknowledgement will be required for each frequency change when in automatic
mode;
.3 make the data
available for use with a delay not exceeding 100 ms after its reception;
.4 be capable of
acquiring a signal in less than 45 seconds in the presence of electrical
storms;
.5 have at least
one serial data output that conforms to the relevant international marine
interface standard*; and
.6 have an
omni-directional antenna in the horizontal plane.
____________
*Refer
to IEC 1162 Publication.
Precautions
should be taken to ensure that no permanent damage can result from an
accidental short circuit or grounding of the antenna or any of its input or
output connections or any of the DGPS and DGLONASS maritime radio beacon
receiver equipment inputs or outputs for a duration of five minutes.
The
DGPS and DGLONASS maritime radio beacon receiver equipment should give an alarm
if no DGPS or DGLONASS message is received.
Annex 3.
AMENDMENT TO RESOLUTION A.342(IX) ON PERFORMANCE STANDARDS FOR AUTOMATIC PILOTS
Replace
the Annex by:
"Annex.
RECOMMENDATION ON PERFORMANCE STANDARDS FOR HEADING CONTROL SYSTEMS*
_____________
*Previously "Recommendation on Performance Standards
for Autopilots".
In addition to the general requirements contained in resolution
A.694(17)**, heading control systems should comply with the following minimum
performance requirements.
______________
**IEC
945 Publication.
2.1 Within limits related to the ships's manoeuvrability the
heading control system, in conjunction with its source of heading information,
should enable a ship to keep a preset heading with minimum operation of the
ship's steering gear.
2.2 A heading control system may work together with a track
control system adjusting its heading for drift.
2.3 A turn rate control for performing turns may be provided.
3.1 Adaption to
steering characteristics and environmental conditions
The heading control system should be capable of adapting manually
or automatically to different steering characteristics of the ship under
various speed, weather and loading conditions, and provide reliable operation
under prevailing environment and normal operational conditions.
The heading control system should be able to perform turns,
within the turning capability of the ship, based either on a preset turning
radius or a preset rate of turn.
Means should be incorporated in the equipment to enable rudder
angle limitation in the automatic mode. Means should also be available to
indicate when the angle of limitation has been commanded or reached. When other
means of directional control are used the requirements of this section should
appropriately apply.
Means should be incorporated to prevent unnecessary activation of
the rudder due to normal yaw motion.
Any alteration of the preset heading should not be possible
without intended action of the ship's personnel.
The heading control system should change to a preset heading
without significant overshoot.
4.
Change-over from automatic to manual steering and vice versa
4.1 Change-over from automatic to manual steering and vice-versa
should be possible at any position of the rudder and should be effected by one
manual control within 3 seconds.
4.2 Change-over from automatic to manual steering should be
possible under any conditions including any failure in the automatic control
system.
4.3 When changing over from manual to automatic steering the
heading control system shall take over the actual heading as the preset
heading.
4.4 There should be a single change-over control which should be
located in such a position that it is easily accessible to the officer of the
watch.
4.5 Adequate indication should be provided to show which method
of steering is in operation.
5.
Change-over from track control to heading control
5.1 If the heading control system works as part of a track
control system, then when switching from track control to heading control, the
actual heading should be taken as the preset heading.