A water-surface wave-absorbing structure comprises an equipment cabin and an airbag cabin vertically mounted below the equipment cabin; a solar cell module and an energy storage device in the equipment cabin are mounted on an upper surface of the equipment cabin, a signal transceiver is mounted on top portions of the solar cell module and the energy storage device, a central air distributing device is mounted in the equipment cabin, two ends of the central air distributing device are respectively connected to an air compressor and an air storage tank through vent pipelines, and a central controller is arranged in the central air distributing device and sends control instructions to the central air distributing device and the air compressor; and the airbag cabin comprises a plurality of airbag units, each airbag unit is provided with a plurality of mutually independent air chambers.

The present application relates an automatically arranged emergency shipwreck position-indicating buoy, which belongs to the technical field of navigation (ship) aids. The automatically arranged emergency shipwreck position-indicating buoy comprises a gasbag, a rope, a high-pressure gas storage device, and a position-indicating light assembly; a rear end of the rope is wound onto a shaft arranged on the gasbag and a front end of the rope is arranged on a ship; a gas outlet of the high-pressure gas storage device is communicated with a gas inlet of the gasbag, and a sealing device is arranged at the gas outlet of the high-pressure gas storage device, and the sealing device is connected to the rope by a connector so as to be arranged on the ship; the position-indicating light assembly is arranged above the gasbag. The present application can be automatically arranged when a ship sinks, and the position of the position-indicating buoy changes as the position of the shipwreck changes in order to indicate the position of the shipwreck and provide convenience for passing ships and shipwreck operation.

An underwater exploration system enables signal transmission and reception to and from an underwater vehicle through wireless communication, that enables carriage of the underwater vehicle to a survey point and collection of the underwater vehicle, and, further, that enables a quick change of the survey point. The underwater exploration system includes: an underwater exploration unit including: a floating member including a first antenna and configured to support the first antenna above a water surface; and an underwater vehicle connected to the first antenna via a signal line; a communication device including a second antenna configured to transmit and receive a wireless signal to and from the first antenna; and an unmanned aerial vehicle configured to carry the underwater exploration unit and drop the underwater exploration unit to the water surface.

An underwater exploration system enables signal transmission and reception to and from an underwater vehicle through wireless communication, that enables carriage of the underwater vehicle to a survey point and collection of the underwater vehicle, and, further, that enables a quick change of the survey point. The underwater exploration system includes: an underwater exploration unit including: a floating member including a first antenna and configured to support the first antenna above a water surface; and an underwater vehicle connected to the first antenna via a signal line; a communication device including a second antenna configured to transmit and receive a wireless signal to and from the first antenna; and an unmanned aerial vehicle configured to carry the underwater exploration unit and drop the underwater exploration unit to the water surface.

The present application relates an automatically arranged emergency shipwreck position-indicating buoy, which belongs to the technical field of navigation (ship) aids. The automatically arranged emergency shipwreck position-indicating buoy comprises a gasbag, a rope, a high-pressure gas storage device, and a position-indicating light assembly; a rear end of the rope is wound onto a shaft arranged on the gasbag and a front end of the rope is arranged on a ship; a gas outlet of the high-pressure gas storage device is communicated with a gas inlet of the gasbag, and a sealing device is arranged at the gas outlet of the high-pressure gas storage device, and the sealing device is connected to the rope by a connector so as to be arranged on the ship; the position-indicating light assembly is arranged above the gasbag. The present application can be automatically arranged when a ship sinks, and the position of the position-indicating buoy changes as the position of the shipwreck changes in order to indicate the position of the shipwreck and provide convenience for passing ships and shipwreck operation.

Disclosed herein is a floating recovery device for underwater equipment. The device includes a recovery body partitioned into a first compartment, a second compartment, and a third compartment by a partition wall, first and second pressure tanks installed in the first and second compartments, respectively, first and second striking parts fastened to the first and second pressure tanks, respectively, to strike the first and second pressure tanks, first and second actuators wirelessly actuating the first and second striking parts, respectively, and a buoyancy generator installed in the third compartment, and inflated by high-pressure gas introduced from the first and second pressure tanks, thus generating buoyancy. Such a configuration allows the pressure tank to be wirelessly struck for the purpose of supplying high-pressure gas to the buoyancy generator and floating the underwater equipment in the event of the loss of the underwater equipment.

Disclosed herein is a floating recovery device for underwater equipment. The device includes a recovery body partitioned into a first compartment, a second compartment, and a third compartment by a partition wall, first and second pressure tanks installed in the first and second compartments, respectively, first and second striking parts fastened to the first and second pressure tanks, respectively, to strike the first and second pressure tanks, first and second actuators wirelessly actuating the first and second striking parts, respectively, and a buoyancy generator installed in the third compartment, and inflated by high-pressure gas introduced from the first and second pressure tanks, thus generating buoyancy. Such a configuration allows the pressure tank to be wirelessly struck for the purpose of supplying high-pressure gas to the buoyancy generator and floating the underwater equipment in the event of the loss of the underwater equipment.

Disclosed herein is a floating recovery device for underwater equipment. The device includes a recovery body partitioned into a first compartment, a second compartment, and a third compartment by a partition wall, first and second pressure tanks installed in the first and second compartments, respectively, first and second striking parts fastened to the first and second pressure tanks, respectively, to strike the first and second pressure tanks, first and second actuators wirelessly actuating the first and second striking parts, respectively, and a buoyancy generator installed in the third compartment, and inflated by high-pressure gas introduced from the first and second pressure tanks, thus generating buoyancy. Such a configuration allows the pressure tank to be wirelessly struck for the purpose of supplying high-pressure gas to the buoyancy generator and floating the underwater equipment in the event of the loss of the underwater equipment.

A system for retrieval of objects submerged and lost in water is disclosed. The system comprises a gas release cartridge, an activation assembly arranged for activation of the gas release cartridge in response to at least one of: lapse of time, pressure, trigger-wire, indirect water contact, or remote acoustic command or any combination thereof, components of which are all contained in an inflatable bladder. A guide line, one end thereof attached to the bladder and the other end connectable to the object, is housed inside a non-watertight casing together with the inflatable bladder.

A system for retrieval of objects submerged and lost in water is disclosed. The system comprises a gas release cartridge, an activation assembly arranged for activation of the gas release cartridge in response to at least one of: lapse of time, pressure, trigger-wire, indirect water contact, or remote acoustic command or any combination thereof, components of which are all contained in an inflatable bladder. A guide line, one end thereof attached to the bladder and the other end connectable to the object, is housed inside a non-watertight casing together with the inflatable bladder.