Transas T214, Technical Manual

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Printing house conventions
Preamble.
15
2.1
COMPLIANCE WITH STANDARDS
AIS Base Station TRANSAS T214 (hereinafter AIS Base Station T214, AIS Base
Station, Base Station) is compliant with the following standards:
•
IEC 62320-1, IEC 61993-2, ITU-1371-1, 2, ITU-R M.825-3, IEC-60945,
IEC 60950, IEC 61162-1,2, ETS 301 489-1;
and the latest IALA Recommendations on Automatic Identification Systems (AIS)
Shore Stations and networking aspects related to the AIS service (Recommendation
A-124, v. 1.2).
2.2
GENERAL DESCRIPTION
2.2.1
AIS Base Station operation
The Automatic Identification System (AIS) is designed for enhancing safety of
navigation in the open sea and coastal waters through the automatic exchange
of navigational, static and voyage information, as well as safety related information
between the ships and coastal VTS stations.
Universal Automatic Identification System (UAIS) is a maritime VHF-based
transponder system that provides high-speed automated ship-to-ship and
ship-to-shore communications, voyage and safety related data.
The AIS Base Station T214 performs the following functions:
•
Automatic identification of ships (IMO number, MMSI, callsign and name);
•
Reception of messages on coordinates, course, speed over the ground,
heading, GNSS antenna position on the ship, ship length, width and draft
via AIS radio data link from other ships, and output of this information to be
presented on the AIS and VTS displays;
•
Reception of data on the rate of turn, ship type, port of destination and time
of arrival in this port, route plan, availability of dangerous cargo (on request);
•
Reception of static, additional dynamic data and binary messages from the ships;
•
Reception and transmission of Safety Related text messages;
•
FATDMA (Fixed Access Time Division Multiple Access) VDL access scheme
according to 14.2.2 of IALA Recommendation A-124;
•
Timeslot reservations for FATDMA access scheme ($--BCF and $--DLM
sentences according to IALA Recommendation A-124);
•
Reception of differential GNSS (GPS) corrections from the GNSS reference
station or radio beacon data link and their transmission via AIS channel;
•
Assigning appropriate operating modes to the ship stations including the
assigning of regions, frequencies, radiating power, slots, reporting intervals,
number of report;
•
Transmitting vessel tracking data from radar tracking system to mobile AIS units
via AIS VHF data links.
The AIS Base Station T214 is a state-of-the-art AIS base station, ideal as
an additional sensor to existing VTS centres or for use in National AIS Networks.