A diagnostic apparatus for diagnosing at least one nautical electronic device on a vessel, from a remote diagnostic center, is provided. The diagnostic apparatus is configured to: receive at least one message from the at least one nautical one nautical electronic device, including identification data for identifying the at least one nautical electronic device and alarm state data indicating a current alarm state of the at least one nautical electronic device; compare the current alarm state of the at least one nautical electronic device with a previous alarm state of the at least one nautical electronic device to detect a failure of the at least one nautical electronic device; and transmit failure detection information to a remote diagnostic center, the failure detection information comprising information associated with the failure of the at least one nautical electronic device and the identification data of the at least one nautical electronic device.

A computer implemented method for providing marine vessel data of a marine vessel with a plurality of sensor devices includes receiving a first sensor data item with first sensor data of a first sensor device of the plurality of sensor devices, associated with a first local timestamp generated based on a local clock; receiving a second sensor data item including second sensor data of a second sensor device of the plurality of sensor devices, associated with a second local timestamp generated based on the local clock and a first universal timestamp generated based on a universal clock; determining time correction value based on the second sensor data item's second local timestamp and the universal timestamp; and generating time information for the first sensor data of the first sensor device using the first local timestamp and the time correction value.

A system assists the driving of a ship and is configured to estimate the structural loads of the ship due to the direct wave excitation, and structural loads of the ship due to the whipping effect caused by the wave slamming. The system includes at least one reference sensor adapted to provide an indication of a motion or stress magnitude at a predetermined point of the ship structure, and is further configured to calculate an estimate of the magnitude at the predetermined point in the ship structure, compare the indication of magnitude with the estimate of the magnitude so as to determine an offset value, and correct the estimates of the structural loads and/or the estimate of the magnitude on the basis of the offset value.

Provided are techniques for monitoring a moving vessel using a detachable drone coupled to the moving vessel. An event is identified that triggers detachment of the detachable drone from the moving vessel. The detachable drone is detached from the moving vessel. The detachable drone is moved to a predetermined location. A beacon based on beacon data is transmitted from the detachable drone. In response to the detachable drone receiving a request for the data, data collected from monitoring the moving vessel is delivered.

A system that controls an impact load resulting from a fluid under an internal/external force is provided. The system senses an impact load, of a fluid under an internal/external force and attenuates the impact load. The present invention includes a floating means arranged horizontally inside an amount of fluid in an open space or in a sealed interior, a position adjustment means is vertically connected to the floating means and positioned inside the fluid, a sensing means disposed inside the fluid, on the floating means, the position adjustment means, or a structure in the periphery senses a measurement object. A controller predicts/monitors and predicts/controls fluid dynamics-related forces, hull stress, six-degree-of-freedom movements, and positions in connection with a transportation means or maritime structure. The floating means, the position adjustment means, and the sensing means are installed thereon, and use the value from the measurement object transmitted from the sensing means.

An autonomous ship bottom inspection method by a ROV(s) based on a ship 3D model in STL format is provided. The ship 3D model is obtained and a surface thereof is spliced by triangular facets. Body 3D coordinate points of the ship 3D model are obtained and then expanded according to a safety distance of ROV and ship to obtain inspection track points of the ROV. The ship 3D model is divided into regions, and the inspection track points in each region are performed with interpolation and smoothing. Smoothed inspection track points of the regions are connected as per a result of the dividing to obtain a ship bottom inspection track, a real-time position of the ROV is obtained, a ship bottom inspection path is generated based on the ship bottom inspection track and the real-time position. The ROV is controlled to move as per the ship bottom inspection path.

An operation assistance system for a small watercraft includes: a position specification unit that specifies an abnormality occurrence position, which is a position where an abnormality has occurred, when the abnormality has occurred in a small watercraft; a transmission unit that transmits information on the abnormality occurrence position specified by the position specification unit; and a processing circuit, in which the processing circuit includes a storage unit that stores information on the abnormality occurrence position transmitted from the transmission unit, and an information provision unit that creates predetermined operation assistance information based on information on the abnormality occurrence position stored in the storage unit and transmits the created operation assistance information.

An operation assistance system for a small watercraft includes: a position specification unit that specifies an abnormality occurrence position, which is a position where an abnormality has occurred, when the abnormality has occurred in a small watercraft; a transmission unit that transmits information on the abnormality occurrence position specified by the position specification unit; and a processing circuit, in which the processing circuit includes a storage unit that stores information on the abnormality occurrence position transmitted from the transmission unit, and an information provision unit that creates predetermined operation assistance information based on information on the abnormality occurrence position stored in the storage unit and transmits the created operation assistance information.

A system for monitoring a physical change of a marine structure includes a complex optical measuring instrument configured to detect a behavior and structural change of the marine structure by using at least one optical sensor by means of optical fiber Bragg grating.

A safety system for an offshore wind turbine supported by a floating foundation provided. The floating foundation being secured to a plurality of anchors at a seabed by a corresponding plurality of mooring lines. The safety system includes a safety controller and at least one conductive wire per mooring line, each conductive wire being configured to extend from the safety controller along a mooring line to the corresponding anchor at the seabed and back to the safety controller. The safety controller is configured to determine whether each of the conductive wires is intact or broken.