Maritime Assisted Volumetric Navigation System (ARIADNA)
Maritime Assisted Volumetric Navigation System
Date du début: 1 nov. 2009,
Date de fin: 30 avr. 2013
"A Volumetric Navigation System (VNS) started with great interest in new traffic navigation solutions considering certain scenarios in which all the vehicles share information in order to be part of a collaborative navigation network. In those scenarios, 3D volume dimensions are used to define the position of an associated volumetric envelope in time. In the maritime navigation the “volume” of the ship is the envelope of the ship after a given time.Horizontal dimensions of this ship’s envelope will consider his current speed and also from his extreme stopping and manoeuvring capabilities from the given speed and load, and correction for the drift due to local measured wind and mapped currents. The vertical dimension in navigation at sea is the water distance below the keel at fore and the aft of the ship and the sea bottom as given by carthography and tide. The display may overlap the Electronic Chart Display and Information System (ECDIS) screen.VNS is a human error avoiding tool for collision avoidance, manouevring and navigation in low separation traffic lines and channels, crossings, port traffic, congested shallow waters. The system key points are:· Every vessel may be represented by a safety volume envelope which geometry will depend on its real shape, navigation and dynamical parameters and the surrounding environment; · The position and course and heading of a vessel may be accurately calculated in real time from its position, speed and drift by GPS and GNSS technologies. Combining position, course, drift and volume, each vessel may be considered as a geo-referenced geometrical volume; · In an scenario with different ship sizes and tonnage and speeds each vessel or boat generates his own volume that is transmitted to the other vessels in the area . The shore, docks river or channel sides and shallow water obstacles generate a warning when the “volume of the vessel” approaches at different levels of risk ."
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