An adapter includes a waterproof container, a photoelectric conversion device housed in the waterproof container and connected to an optical cable, and an attachment structure provided at the waterproof container, for use in detachably attaching the adapter to an ROV.

A system for inspecting flexible pipelines comprises a data analyzer, a data collector and an ultrasonic transducer. Further, the ultrasonic transducer is adapted to propagate shear wave into the annulus of the flexible pipeline. The data collector further comprises a data store and a communicator. Further, the system is capable of differentiating flooding and non-flooding condition of the annulus of the flexible pipeline which is subjected to high pressure. Using the system, an indicator of a flooded or non-flooded condition within the flexible pipeline may be calculated using transmitted and detected reflective waves or the lack of detected reflective waves.

Disclosed is a sonobuoy that houses at least one unmanned vehicle that may be launched from the sonobuoy. The sonobuoy may include a canister, a parachute, an unmanned vehicle, and a launch mechanism. The parachute may be disposed within an interior cavity of the canister proximate to a first end of the canister. The unmanned vehicle may be disposed within the interior cavity of the canister proximate to a second end of the canister. The launch mechanism may be disposed within the interior cavity of the canister and operatively coupled to the unmanned vehicle. The launch mechanism may be configured to launch the unmanned vehicle from the canister. The sonobuoy may further include a launch deployment mechanism that may be configured to orient the canister with respect to a surface after the sonobuoy impacts the surface in order to facilitate the launch of the unmanned vehicle.

A field configurable autonomous vehicle includes modular elements and attachable components. The vehicle can be assembled from these modular elements and components to meet desired mission and performance characteristics without the need to purchase specially designed vehicles for each mission. The vehicle can include a mechanisms that magnetically attach and release payloads such as cargo or ballast from the vehicle.

An apparatus for joining elongated elements in a body of water has a frame; a strap feeding device; two arms movable with respect to the frame and configured to guide a strap around the elongated elements; a clamping device, configured to retain an end portion of the strap; a driving device configured to advance and tighten the strap around the elongated elements; a junction device, configured to join two overlapping portions of the strap so as to close the strap around the elongated elements; and a cutting device configured to separate the strap upstream of the joined portion.

An underwater vehicle control system includes at least one controller configured to receive a control input signal indicative of a target virtual position and/or a target virtual orientation of a target virtual underwater vehicle within a virtual environment. The at least one controller is also configured to output a target virtual underwater vehicle signal to a display indicative of instructions to display a visual representation of the target virtual underwater vehicle at the target virtual position and/or the target virtual orientation within the virtual environment. Furthermore, the at least one controller is configured to output a target physical underwater vehicle signal to an underwater vehicle within a physical environment indicative of instructions to move the underwater vehicle to a target physical position and/or a target physical orientation within the physical environment corresponding to the target virtual position and/or the target virtual orientation of the target virtual underwater vehicle.

A charging system includes a charging station having: a base underwater; a pole extending in an upper-lower direction; and a power supplying portion. An AUV includes: an underwater main body; a power receiving portion; a holding device including a pair of guide and holding portions, the pair of guide portions guides the pole to a holding position after the pole contacts the guide portions from a proceeding-direction, the holding portion holds the pole to be rotatable relative to the pole; a thrust generating apparatus generates in a horizontal direction; and a control device controls the thrust generating apparatus. A light emitter at one of the base and the underwater main body, and a light receiver is provided at the other. The control device controls the thrust so the underwater main body reaches a rotational position where the light receiver receives light emitted, the rotational position set relative to the pole.

A sonar system and method enable performing angled-looking sonar (ALS) by emitting sonar waves in a forward and downward direction from sonar transducers located at an underwater vessel. The sonar waves may be received by sonar transducers located al the underwater vessel. Additionally, a variable geometry sonar system and method enable performing side scan sonar (SSS) and ALS by moving al least one sonar transducer to perform both SSS and ALS. The variable geometry sonar system may be used with an underwater vessel to perform mine countermeasure (MCM) missions by using ALS for a homing phase on a target.

A wellbore system includes a tubing hanger positioned within a wellhead and a Christmas tree (XT) coupled to the tubing hanger. The wellbore system also includes an annulus isolation device (AID). The AID includes a manual actuator configured to drive a wedge in a linear direction. The AID also includes a mating wedge arranged within an annulus flow path, the mating wedge configured to receive a force responsive to movement of the wedge. The AID further includes a stab coupled to the mating wedge, the stab configured to move in an axially downward direction responsive to movement of the mating wedge, the stab having a slotted portion moveable into alignment with an annulus passage to permit flow into the annulus flow path.

The invention relates to a method and system for path planning of a wave glider, comprising acquiring historical navigation data of the glider and an underwater vehicle via a shore-based monitoring center; fitting historical navigation data nonlinearly by a deep learning neural network to obtain a trained network; acquiring real-time navigation data of the glider at an off-line end, real-time navigation data and predetermined shipping track data of the vehicle; obtaining the set of off-line optimized path planning schemes of the glider by the above data and the trained network; and determining an optimal path planning scheme of the glider by the deep learning neural network according to real-time data and constraint data of the glider at the on-line end. The invention can reasonably plan the path of the glider and ensure continuous and reliable information interaction between the glider and the vehicle.