Automatic Identification System (AIS) is a maritime technical standard system that was developed with the aim of identifying ships, exchanging data between them, providing assistance in tracking vessels and enabling additional information to avoid collisions. AIS, as a rule, although not necessary, is part of the integrated ship system, which consists of various auxiliary devices for navigation, the purpose of which is to help the ship's crew in making decisions at sea and avoiding collisions, as well as in enabling safe navigation. This device is based on the autonomous exchange of data between ships, whereby each ship broadcasts its own data to all other ships that have an AIS system. Such a communication scheme realizes the flow of data that can be forwarded to the ship's integrated system and radar. AIS data can also be saved in the navigation data recording system and can be reproduced and analyzed later. Given that the radar image does not provide a completely detailed and realistic image of objects in terms of their size, position and MMSI, AIS enables exactly the above. At the moment, satellite AIS (S-AIS) is very relevant, which ensures safety at sea, and although it still has certain shortcomings, its faster and better growth and development are expected in the near future. With its use, various economic, but also, most importantly, ecological advantages are realized, which implies maintaining the cleanliness of the sea, and precisely with this goal, further and even better results are expected in the future.