Automatic Identification System “Unknown vessel on my starboard bow…..” radio communications like this are a commonplace occurrence for the officer… [630367]

AIS 3410
Automatic Identification System

“Unknown vessel on my starboard bow…..” radio
communications like this are a commonplace occurrence for the officer on watch during night time, especially in coastal waters.
The weak link in the past generations of ARPA
electronics is the inability to identify a single radar target when multiple contacts are being tracked and a visual identification is impossible. To identify a target by the means of VHF contains
a lot of guess work with no guarantee for success. It leads to confusion and is an important factor for many collisions and near-collisions. This uncertainty belongs now to the past. The Automatic Identification System AIS provides now the missing link to the collision avoidance electronics.It supports the officer on watch by providing detailed target and traffic information in real time to be displayed on navigation displays.
SAM Electronics as the leading system integrator
was one of the first companies implementing AIS information in its navigation equipment. Since the first trials in 1997 SAM Electronics has deve-loped not only a fully IMO compliant AIS
transponder but also the full periphery for the display and operation of AIS on versatile
navigation equipment.
In 2009 SAM Electronics introduced the second
generation of AIS class A transponder onto
market. The new AIS 3410 is developed based
on the experience of several thousand installed
AIS transponders in the last 7 years. It is com- pliant with the latest performance standard for Automatic Identification Systems (AIS) IEC 61993 and exchangeable to its predecessor UAIS DEBEG 3400. The smaller dimensions and lower weight of the AIS 3410 transponder lead to a compact
design and simplify the installation of the equip –
ment. Additionally a Low Power Mode with a transmitting power of 1 W for tanker according to TSG (Tanker Safety Guide) and ISGOTT (International Safety Guide for Oil Tankers and Terminal) is implemented.
AIS integrated in Navigation and Command System (NACOS)
AIS 3410
General
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The AIS 3410 is a unique equipment which
supports the officer on watch by providing
detailed target and traffic information. To
optimise the benefits of the AIS the information will be displayed on the main navigation
equipment, the NACOS Platinum, RADARPILOT 1×00 series, the RADARPILOT 9×00 ARPA series and the CHARTPILOT 93xx / 11xx series.
The transponder transmits own ship’s data like
position, course, speed and identification and receives the same information from other AIS transponders within VHF range.
The officer on watch will have not only accurate
course, speed and distance in real time of each vessel around, but also ship’s identification and if available rate of turn.
Functionality and Benefits
User Benefits
The AIS 3410 works fully autonomous and allows the nautical officer to:
n Identify each radar target by its
correlated AIS identification
n Merge AIS target with ARPA target
data (on request)
n Contact other vessels directly via DSC
or VHF by using the call sign or MMSI
number
n Receive an instant overview of the
traffic situation and manoeuvres of
other vessels
n Coordinate actions of collision avoidance
without delay
n Concentrate on navigation and collision
avoidance in coastal waters, because
additional workload due to communi-
cation, VHF messages to the VTS at the
reporting points and other vessels is
done by the AIS automatically
n Get detailed target information even
when no radar contact is available due
to restricted environmental conditions
n Compensate radar problems like
target swopping or inaccurate heading
information
n Reach automatically aids to navigation
for the area where the vessel is
operating
n Get real time ROT-informationAs well as other vessels also VTS stations and aids to navigation like buoys and light vessels can be equipped with a transponder.
Even for shore based stations the AIS 3410 offers
possibilities e.g. for fleet management by
providing an interface to the long range
communication, allowing the transmission of ship’s own data via SATCOM.
AIS 3410 is completely exchangeable to its
predecessor UAIS DEBEG 3400
n Easier to install due to smaller dimensions and
lower weight
n Low Power Mode with 1 W for tanker
according Tanker Safety Guide (TSG) and
International Safety Guide for Oil Tankers
and Terminal (ISGOTT)
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Working Principle
The AIS 3410 operates in the SOTDMA (Self
Organised Time Division Multiple Access) mode,
which means the transponder is organising its transmissions autonomously by means of time slots based on a common reference system.
Using the UTC time signal transmitted by GPS as a
reference a frame of one minute length is divided in 2225 single time slots. The transmission of one AIS data telegram should take normally one time slot. The maximum number of slots to be
occupied for longer telegrams is five.
For initialisation of its VHF transmissions the
AIS transponder is monitoring the time slots
occupied by other transponder and starts
transmitting in a free slot. The process of
selecting the time slot and entering the system is fully automatically with no operator action
necessary.The transponder is operating normally in the
full autonomous broadcast mode, but can be
switched to assigned and polling mode. The latter
two modes will be activated by a competent authority responsible for traffic monitoring.
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Display SystemsAIS 3410
The AIS 3410 is suitable for integration into
bridge systems or for retrofit. Depending on the
installed equipment different options and
features are available. The flexible system
architecture allows it to customise the installation depending on the needs of our customers.
In an Integrated Bridge System the display of the
AIS data and the operation of the transponder takes place at the navigation workplace. This can be the display of the NACOS Platinum RADARPILOT, ECDISPILOT, MULTIPILOT, RADARPILOT 1×00, the RADARPILOT 9×00 ARPA or the CHARTPILOT 93xx / 11xx series. The information will be available on all installed radar and ECDIS displays.
AIS targets will be displayed and treated like
ARPA targets using functions as acquired target and display data. If an AIS target is correlating with an ARPA target, both targets will be merged to avoid clutter on the PPI. All systems offer user friendly and self explaining user interfaces to operate the transponder without additional
workload.
All displays are type approved by BSH as Minimum
Keyboard Display.
System overview AIS 3410RADARPILOT Platinum
ECDISPILOT PlatinumGPS antenna
VHF antenna
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Printed in Germany • Technical alterations reserved • © SAM Electronics GmbH • DS 3.037.08/2013Technical DataAIS 3410
SAM Electronics GmbH
Automation, Navigation, CommunicationBehringstrasse 120
22763 Hamburg . GermanyPhone: +49 (0)40 – 88 25 – 28 41
Fax +49 (0)40 – 88 25 – 41 16
ANC@sam-electronics.de
www.sam-electronics.de307140
Ø7,30Cover not shownca. 700ca. 200
164
184Space required for service124,50
324Area for cable inletGrounding M6
General
n Housing IP22
n Operating temp.: -15…+55°C (DIN EN 60945)
n Humidity: Max. 95% at 40°C
n Voltage (supply): 24 VDC ±20%
-> 19.2 … 28.8 V (DIN EN 60945)
n Current (consump.): Typ. 0,76 A at 24 V,
max. 2.5 A (momentarily during
transmission)GPS Receiver
n Receiver: Single board receiver
n Channels: 16, parallel
n Time to first fix:
– Hot start <3,5 s
– Warm start 33 s
– Cold start 36 s
n Navigation modes: 3-D and 2-D
n Accuracy: position 2,5 m CEPVHF Transceiver
The Transceiver corresponds to EN 61993-2
n Transmitting power: 1/2/12,5 W
n Input sensitivity: -107 dBm
(AIS and DSC)