An unmanned sailing vehicle comprising: a primary hull; a rigid wing rotationally coupled with said primary hull that freely rotates about a rotational axis of said rigid wing; a boom comprising a first end extending from a leading edge of said rigid wing and a second end extending from a trailing edge of said rigid wing, said first end of said boom comprising a counterweight configured to dynamically balance a wing system comprising said rigid wing, said boom, and said tail with respect to said rotational axis of said rigid wing; a tail coupled to said second end of said boom; a control surface element disposed on said tail and configured to aerodynamically control a wing angle of said rigid wing based on a position of said control surface element; and a controller configured to determine a control surface angle and generate a signal to position said control surface element.

An underwater rescue device, including a cabin provided with a hatch is provided, wherein the hatch is capable to open or close the cabin to form a confined space inside the cabin; a salvage device arranged inside the cabin, comprising a rescue platform and a gripper mechanism arranged on the rescue platform, wherein the rescue platform is movable, the rescue platform is capable to rotate relative to the cabin along at least one rotational axis and is capable to lift and lower to remove the cabin, and the gripper mechanism is configured to grab a drowning person and fix the drowning person on the rescue platform; a cardiopulmonary resuscitation device arranged inside the cabin; a drainage device arranged on the cabin; and a power device arranged on an outer side of the cabin. It has a high degree of automation and can provide immediate rescue for drowning personnel.

An underwater rescue device, including a cabin provided with a hatch is provided, wherein the hatch is capable to open or close the cabin to form a confined space inside the cabin; a salvage device arranged inside the cabin, comprising a rescue platform and a gripper mechanism arranged on the rescue platform, wherein the rescue platform is movable, the rescue platform is capable to rotate relative to the cabin along at least one rotational axis and is capable to lift and lower to remove the cabin, and the gripper mechanism is configured to grab a drowning person and fix the drowning person on the rescue platform; a cardiopulmonary resuscitation device arranged inside the cabin; a drainage device arranged on the cabin; and a power device arranged on an outer side of the cabin. It has a high degree of automation and can provide immediate rescue for drowning personnel.

This disclosure describes monitoring and operating subsea well systems, such as to perform operations in the construction and control of targets in a subsea environment. A submersible ROV that performs operations in the construction and control of targets (e.g., well completion components) in a subsea environment, the ROV has one or more imaging devices that capture data that is processed to provide information that assists in the control and operations of the ROV and/or well completion system while the ROV is subsea.

This disclosure describes monitoring and operating subsea well systems, such as to perform operations in the construction and control of targets in a subsea environment. A submersible ROV that performs operations in the construction and control of targets (e.g., well completion components) in a subsea environment, the ROV has one or more imaging devices that capture data that is processed to provide information that assists in the control and operations of the ROV and/or well completion system while the ROV is subsea.

An underwater docking system according to one aspect of the present disclosure includes: an underwater vehicle that sails in water; and an underwater station with which the underwater vehicle docks. One of the underwater vehicle and the underwater station includes: a reference point; and a first fitting located around the reference point as a center. The other of the underwater vehicle and the underwater station includes: a detector that detects the reference point; and a second fitting located around the detector as a center and fitted to the first fitting. One of the first fitting and the second fitting is an annular groove. The other of the first fitting and the second fitting includes at least two protrusions that are inserted into the annular groove.

An underwater docking system according to one aspect of the present disclosure includes: an underwater vehicle that sails in water; and an underwater station with which the underwater vehicle docks. One of the underwater vehicle and the underwater station includes: a reference point; and a first fitting located around the reference point as a center. The other of the underwater vehicle and the underwater station includes: a detector that detects the reference point; and a second fitting located around the detector as a center and fitted to the first fitting. One of the first fitting and the second fitting is an annular groove. The other of the first fitting and the second fitting includes at least two protrusions that are inserted into the annular groove.

The invention relates to an underwater device for capturing images of a seabed, comprising at least one sensor for detecting a sensor value, at least one electrical consumer and an electrical energy source for supplying electrical energy to the electrical consumer. The underwater device is characterised in that, based on the sensor value, it is determined whether a hazardous condition exists for the electrical consumer and an energy distribution unit is provided which disconnects the electrical consumer from the electrical energy source if a hazardous condition exists.

The invention relates to an underwater device for capturing images of a seabed, comprising at least one sensor for detecting a sensor value, at least one electrical consumer and an electrical energy source for supplying electrical energy to the electrical consumer. The underwater device is characterised in that, based on the sensor value, it is determined whether a hazardous condition exists for the electrical consumer and an energy distribution unit is provided which disconnects the electrical consumer from the electrical energy source if a hazardous condition exists.

A method, apparatus, and method for facilitating communications with an underwater platform. A communications system comprises an unmanned aerial vehicle, a radio frequency communications system, a laser communications system, and a controller. The unmanned aerial vehicle comprises a first section and a second section. The first section is moveably connected to the second section. The radio frequency communications system is connected to the first section of the unmanned aerial vehicle. The radio frequency communications system comprises a first parabolic antenna. The laser communications system is connected to the second section of the unmanned aerial vehicle. The laser communications system comprises a second parabolic antenna. The controller is configured to control the laser communications system to transmit incoming information in a transmit laser beam to the underwater platform submerged in a body of water. The incoming information is from a receive radio frequency signal received by the radio frequency communications system.