Abstract:
A drifting ocean buoy is described which utilizes a drag structure which follows the water mass of the ocean as it flows in the form of the ocean current, and which also has an aerodynamically shaped low wind drag mast to minimize wind induced errors in ocean current drift measurements; the drag structure also being stable and resistant to heaving (pitch and roll) so as to maintain a mast carried antenna above the water even at high sea states.
Abstract:
This disclosure is directed to a spar buoy system within which a compressible air bag or container has been installed to stabilize a platform. The compressible bag is positioned with its center at the center of gravity within a fixed area and pressurized such that the bag collapses or expands due to surrounding water pressure. The surrounding water applies a pressure onto the bag such that the pressure within the bag is equal to the pressure outside the bag.
Abstract:
A device for detecting a fall of and for geolocating a container that has gone overboard that includes an electronic box and a means for removably attaching the electronic box to an external part of the container is disclosed. The electronic box includes a means for detecting the container's fall, a control unit controlling the removable attachment means in the event of the detection of the container's fall and disconnecting the electronic box from the external part of the container, a flotation means for floating the electronic box on a stretch of water, a geolocation module, a data communication means, a means for powering the control unit, a link for maintaining a permanent connection between the electronic box and container when the box is disconnected from the container. This allows detection a container falling into the sea and to communicate its geographical position with a view to towing thereof.
Abstract:
An underwater vehicle able to float on the surface of the water comprises a body delimited at least partially by a curved surface, the body defining an enclosure, the underwater vehicle comprising an arm mounted with at least one emitter or at least one receiver of electromagnetic waves, the arm being linked to the body by an articulation joint with a degree of freedom in rotation about an axis of rotation, the articulation joint allowing the arm to pivot reversibly between a retracted position, in which the arm is housed in the enclosure and is flush with the curved surface of the body, and a deployed position in which the arm extends out of the enclosure, the arm comprising a curved outer surface along the length of the arm, being flush with the curved surface of the body when the arm is in its retracted position.
Abstract:
A mooring buoy comprising a buoyant body, an attachment point for attaching the buoy to a marine vessel, a controller, an RF communication device for receiving a vessel ID identifying the marine vessel and a movement sensor, wherein the controller is arranged to determine when the marine vessel is moored to the mooring buoy based on the received vessel ID and the movement sensor.
Abstract:
A marine object able to float on the surface of the water comprising a body delimited at least partially by a curved surface (4) comprising a housing (6) emerging on said curved surface (4), said marine object (1) comprising a deployable emitting/receiving device comprising an arm (8) on which are mounted means for emitting and/or receiving electromagnetic waves, said arm (8) being linked to said body (3) by means of an articulation with a degree of freedom in rotation about an axis of rotation, the articulation allowing the arm (8) to pivot reversibly between a retracted position, in which the arm (8) is housed in the housing and is flush with the curved surface (4), and a deployed position in which the arm (8) extends out of said housing (6), the arm comprising a first surface, called outer surface, the outer surface being curved along the length of the arm (8), said outer surface being flush with said curved surface (4) and following the curve of said curved surface (4) when the arm (8) is in its retracted position.
Abstract:
A method of locating an underwater based system, the method including determining the underwater based system's geo-location, encoding the underwater based system's geo-location for RF transmission, encoding the underwater based system's geo-location for acoustic transmission, and transmitting RF and acoustic signals containing the encoded geo-location to a receiving station. A locator for locating an underwater based system including a buoy, a global positioning system having an antenna and a receiver, an RF transmission system including an antenna and a transmitter, an underwater acoustic transducer, and a locator control unit adapted to determine the underwater based system's geo-location, encode the underwater based system's geo-location for RF transmission, encode the underwater based system's geo-location for acoustic transmission, and transmit RF and underwater acoustic signals containing the encoded geo-location.
Abstract:
A method of locating an underwater based system, the method including determining the underwater based system's geo-location, encoding the underwater based system's geo-location for RF transmission, encoding the underwater based system's geo-location for acoustic transmission, and transmitting RF and acoustic signals containing the encoded geo-location to a receiving station. A locator for locating an underwater based system including a buoy, a global positioning system having an antenna and a receiver, an RF transmission system including an antenna and a transmitter, an underwater acoustic transducer, and a locator control unit adapted to determine the underwater based system's geo-location, encode the underwater based system's geo-location for RF transmission, encode the underwater based system's geo-location for acoustic transmission, and transmit RF and underwater acoustic signals containing the encoded geo-location.