1. Automatic Identification System

2. 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

3. 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

4. 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

5. Navi-Harbour AIS Display

6. 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.

7. LAN
CONTROL CENTRE

8. 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;