Automatic
Identification System
AIS Technology
The Automatic Identification System is designed for autonomous information
exchange between ship&ship and ship&shore-based station. This information
includes ships’ name, location, speed and course over ground. Transas’
transponders also have a function which allows operator to send binary and
text messages from ship to ship, from ship to shore and v.v. The exchange of
information is realized through two VHF channels.
The transponders are working in broadcast mode on shared channels, thus all
transponder equipped vessels can see each other. This exchange of
information is performed fully autonomously (without any involvement from a
controlling station). The broadcast data is received both by transponder’
equipped vessels and shore based transponders.
STDMA Datalink
AIS Technology
The transponders offered by Transas Marine include functionality in
accordance with the Technical Characteristics for a Universal Shipborne
Automatic Identification System, approved by ITU (ITU-R M.1371). This
means communication over two parallel VHF channels, operation at the
designated AIS 1 and AIS 2 channels and radio transceiver approval in
accordance with I-ETS 300 113.
On Board Transponder
By installing a Universal AIS transponder on a ship together with
ECS or ECDIS system and other sensors, surrounding ships equipped
with a similar Universal AIS transponder can be monitored in real
time.
The following information is
available for automatic display in
the VTS and on vessels ECS:
Position
Name
Call sign
Length and beam
Type of ship
Location of GPS antenna
Speed over ground
Course over ground
Heading
Rate of turn
The available voyage
related information
includes:
Destination
Estimated Time of Arrival
Ship’s draught
Type of cargo
Navi-Harbour AIS Display
Base Station Transponder
(SBT1000 Transponder)
The base station transponder is a standard 19” rack
module that includes a standard mobile transponder,
power
supply
converter
and
DGPS
reference
station/beacon receiver. With an installed reference
station/beacon receiver the base station transponder can
broadcast different corrections to transponders operating
within VHF range. This transponder is designed for land
installations, both for stand-alone units and network
configurations.
LAN
CONTROL CENTRE
Advantages Of Using AIS
-
cost-effective solution;
suitable for small ports;
IMO compliant;
easy to install;
compact design;
could be expanded up to full range VTMS;
easy to upgrade;