Navigation Data Base

The System uses the Central Database (Database of Navigational Situation) for storing all info related to sea traffic monitoring (e.g. tracked target coordinates, speeds and courses, special area coordinates and sailing conditions, etc.). Components of the System get necessary info by sending queries to the Central Database.

The architecture like this automatically ensures consistency of info in all components of the System.

In fact, the Central Database is an aggregation of dedicated sub-databases, such as:

• Radar targets DB
• AIS targets DB

  Separate storage of info about AIS and radar targets makes it possible to replay navigational situation exactly in its original view and distinguish between different targets or integrate identical ones using target integrator

• Logbook
• AIS stations
• Aids to Navigation
• Other relevant databases

Additionally, the Target Integrator utility is installed on the System server, which insures recognition of signals coming from the same target via different channels (e.g. AIS transponder and radar). After the recognition, a query can be sent to the Port Database, which returns new info concerning the ship’s freight, customs formalities, etc. Signals from the same target are combined to yield more accurate estimates of the target movement parameters.

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