A deployment module according to the present application enables both compact stowage of a sensor array and expansion of the sensor array into a three-dimensional volumetric array shape that enables improved directionality of the sensors during operation. The deployment module includes a support shell that is configured to retain a cable of the sensor array separately from sensors of the sensor array and an expandable deployment body formed of a superelastic shape memory alloy that uses superelasticity and stored energy for deployment of the sensor array. During deployment, the deployment body is removed from the support shell and the sensors are subsequently pulled out of the support shell. The deployment body then expands and holds the cable to retain the three-dimensional volumetric shape of the deployed array.

An apparatus comprises a frangible structure coupled or integral to at least a portion of the apparatus and a triggerable mechanism disposed at or proximate the frangible structure. The triggerable mechanism is configured to break the frangible structure in response to a trigger signal. A containment structure is disposed on or over at least a portion of the frangible structure. The containment structure is configured to allow at least the portion of the frangible structure to deform or change shape in response to breaking of the frangible structure while keeping substantially all fragments of at least the portion of the broken frangible structure together.

An autonomous navigation type marine buoy includes: a buoy body consisting of a floating body; an internal sensor; a detection unit that receives a GPS signal and information of the internal sensor; an on-water exploration unit that explores a state on a sea; an underwater exploration unit that explores a state under the sea; a determination unit that creates a navigation plan for the buoy body; a propulsion unit that propels the buoy body; a navigation control unit that performs drive control of the propulsion unit so that the buoy body navigates according to the navigation plan; a power generation unit; a power storage unit; a communication unit that communicates with an outside; an emergency signal unit that receives a distress signal and specifies a transmission position of the distress signal; and an evacuation room that accommodates a victim, in which the autonomous navigation type marine buoy has an autonomous navigation mode of performing autonomous navigation to a set position on the sea, a home position mode of autonomously holding a home position at the set position on the sea, and a rescue mode of performing autonomous navigation to the transmission position of the distress signal on the sea when the distress signal is received.

A distributed acoustic anti-unmanned boat intelligence system (DAAUBS) for detecting unmanned boats (UB) approaching protected sites includes a plurality of airborne defense agents (ADAs) and a base station. Each ADA is equipped with air balloons, tethers, buoys, a directional microphone array, a first computing device, and a transceiver. The first computing device causes at least processor to determine information regarding each approaching UB. The base station includes a control center configured with a wideband communications link configured to communicate with the transceiver of each ADA. The DAAUBS control center includes a second computing device performing an intelligence method. The second processor receives and aggregates the data of each approaching UB and performs adaptive noise cancellation to remove environmental background noise. The second processor uses a deep learning classifier to classify at least one of a type and size of the UB.

An ocean energy collection device is provided. The device includes a first friction assembly, a second friction assembly, and a gravity center adjustment assembly disposed in sequence from outside to inside, and a control and energy storage assembly arranged on the gravity center adjustment assembly. The first friction assembly includes a spherical housing, a first electrode layer, and a first friction layer which are disposed in sequence from outside to inside. The second friction assembly includes a tumbler-shaped shell, a second electrode layer, and a second friction layer which are disposed in sequence from inside to outside. The gravity center adjustment assembly is fixed in the tumbler-shaped shell. The first friction assembly and the second friction assembly can realize electrification by friction. The first electrode layer, the second electrode layer, and the gravity center adjustment assembly are connected with the control and energy storage assembly.

A technique for managing an attachment between first and second portions of a device. The technique includes a retaining component having a first state in which the retaining component maintains the attachment between the first and second portions by virtue of a rigid characteristic and a second state in which the retaining component loses the rigid characteristic and no longer maintains the attachment. The retaining component transitions from the first state to the second state upon exposure to liquid water.

According to an embodiment, a maritime wireless communication system comprises a communication module installed in the at least one buoy, providing sensing information, identification information, and location information for the at least one buoy and a gateway device installed in each of a fishing vessel terminal device and a managing vessel terminal device, performing communication with the at least one buoy and a land control center via a long range (LoRa)-based communication network to provide various types of fishery information, and setting different communication options for a normal condition and the event condition in performing a communication connection function.

According to an embodiment, a fishing tool loss monitoring system comprises at least one buoy providing sensing information and buoy identification information and buoy position information, a fishing vessel terminal device providing fishing vessel information including fishing vessel identification information, fishing vessel position information, the fishing tool identification information, and the buoy position information, and a land control center performing transmitting/receiving information to/from the fishing vessel terminal device or the buoy through a communication network to gather the sensing information including underwater temperature information and overwater temperature information from the buoy during a preset time, measuring a speed of the buoy using the buoy position information when a difference between respective averages of the underwater temperature information and the overwater temperature information falls outside a preset error range.

The generation of electronic notifications relating to ocean waves. Embodiments include frameworks and methodologies configured to enable real-time location-specific determination of recreationally relevant wave characteristic data, including (but not limited to) generation and delivery of location-specific ocean wave notifications. Embodiments include, by way of example, technology for providing real-time location-specific determination of recreationally relevant wave characteristic data, portable and/or wearable devices configured to deliver notifications in respect of approaching waves, wave monitoring devices and frameworks configured to enable generation of alert notifications for surfers, rock fishers and other recreational users, and generation and delivery of location-specific ocean wave data, including visual data for event broadcasts.

The present invention relates to an automatic falling-off device for a self-sinking and floating type profiling float diversion shell and the diversion shell. An automatic falling-off device for a self-sinking and floating type profiling float diversion shell, comprises a locking device and an unhooking device; the locking device comprises a locking hook plate and a locking core plate; the locking hook plate is provided on one half diversion shell, and the locking core plate is fixed on another half diversion shell; a locking hook at a front end of the locking hook plate fits with a locking ring at a front end of the locking core plate for locking; the unhooking device comprises a base and a buoyancy airbag; and the base is provided below the locking hook plate, and the buoyancy airbag is mounted between the base and the locking hook plate.