Relaying data directly from AIS requires an internet connection. For non-IMO-regulated boats and leisure crafts, the boat owner sets that connection. However, on commercial vessels that comply with IMO regulations, where the Captain is not the owner, the ship’s IT department must coordinate the internet connection setup.
Below are various scenarios for sending data to the Marine Traffic server.
1. Interfacing AIS serial signal to a computer
AIS serial output must be interfaced using RS-422/RS-485 to a USB converter. The computer receives the data, and the software installed on the computer relays it to Marine Traffic’s server.
RS-422/RS-485 to a USB converter - plenty of such converters are available on the market. RS-422 and RS-485 standards can interface with the AIS serial output, so it does not matter which one you acquire. However, it is advised to use the converters with screw-in terminals; connecting the wires is more convenient.
Relay data using computer software - After ensuring the computer receives the AIS data, you can use the following software to relay that data:
OpenCPN Guide - displays the AIS data on the map on your computer and relays the data.
AIS Dispatcher Guide - only relays the data.