Abstract
A maritime collision avoidance system built on a database is being developed. Different information important for navigation, like electronic charts, bathymetric data, sea current and forecast weather conditions, etc., as well as knowledge about weather and load-dependent maneuvering capabilities of the involved vessels, are entered into the database tables. When using the system in real-time, the targeted data must be found very quickly in the database. In parallel, for the prediction of ship courses and for the calculation of evasive courses, the system must be capable of solving very many calculations in the shortest possible time, and these calculations often use database tables. Fast communication for updating database tables with the latest data is equally important in such a system. This article briefly presents the hardware developed for the project. We designed such data models for the efficient application of the Postgres database, capable of real-time calculation.
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