A seabed object detection system is provided. The system can include a receiver array including streamers. The system can include a plurality of receivers coupled with the streamers. The system can include a receiver array cross-cable to couple with the first streamer and to couple with the second streamer. The receiver array cross-cable can be disposed at a first depth of a body of water. The system can include a first diverter and a second diverter coupled with the receiver array cross-cable. The system can include a source array including a first source and a second source. The source array can be coplanar to the receiver array. The system can include a source array cross-cable to couple with the first source and to couple with the second source, the source array cross-cable disposed at a second depth of the body of water.

The present invention provides an operating method and an operating system of a multiple underwater vehicles 30, wherein exploration missions and exploration depths of the multiple underwater vehicles 30 are differently set in the underwater vehicles 30 for exploring a water bottom, the multiple underwater vehicles 30 are submerged to the respective set exploration depths, the multiple underwater vehicles 30 are made to cruise at the respective set exploration depths to execute the exploration missions, and execution results of the exploration missions are recorded and/or transmitted. According to this, it is possible to deploy and operate the multiple underwater vehicles and safely and efficiently explore the water bottom.

A sensor suspension system for use in an underwater environment comprises a sensor (e.g., vector sensor) and a framework comprising a plurality of support structures, and a plurality of compliant devices that suspend the sensor within an inner volume of the framework. The plurality of compliant devices facilitate a symmetrical sensing response of the sensor in three degrees of freedom when deployed in the underwater environment. The framework is moveable from a collapsed position to an expanded position. A plurality of sensor suspension systems can be tethered together into a sensor array by a deployment control system operable to release a buoyant device, tethered to the sensor suspension systems, that vertically positions the plurality of sensor suspension systems into the sensor array. The buoyant device can cause each framework to expand via pulling force through the tethers upon release of the buoyant device.

A sensor suspension system for use in an underwater environment comprises a sensor (e.g., vector sensor) and a framework comprising a plurality of support structures, and a plurality of compliant devices that suspend the sensor within an inner volume of the framework. The plurality of compliant devices facilitate a symmetrical sensing response of the sensor in three degrees of freedom when deployed in the underwater environment. The framework is moveable from a collapsed position to an expanded position. A plurality of sensor suspension systems can be tethered together into a sensor array by a deployment control system operable to release a buoyant device, tethered to the sensor suspension systems, that vertically positions the plurality of sensor suspension systems into the sensor array. The buoyant device can cause each framework to expand via pulling force through the tethers upon release of the buoyant device.

Disclosed is an underwater drop type position guiding apparatus, the apparatus including an underwater drop type body having a lower end part in a shape of a cone pointing downward. The underwater drop type body is provided with a GPS module, an underwater communication transmitter, a controller, and a battery. After being installed on the sea floor by being dropped to the water from above the surface of the water, the apparatus guides underwater coordinates to various underwater vehicles using GPS location information having received from above the surface of the water.

An underwater positioning system comprises a plurality of underwater beacons. A beacon, in response to a signal sent by an underwater vehicle, responds with a signal comprising one or more characteristics to identify the beacon. Components of an access algorithm are provided to the underwater vehicle. The access algorithm determines a location of the beacon based on the beacon's identity. A position of the vehicle is determined based at least in part on the location of the beacon.

An underwater positioning system comprises a plurality of underwater beacons. A beacon, in response to a signal sent by an underwater vehicle, responds with a signal comprising one or more characteristics to identify the beacon. Components of an access algorithm are provided to the underwater vehicle. The access algorithm determines a location of the beacon based on the beacon's identity. A position of the vehicle is determined based at least in part on the location of the beacon.

Disclosed is an ROV propeller tailhood comprising a body a control circuit board, a heat block, a thermal silica gel and long rod screws. The heat sink is fixed to the bottom of the control circuit board and disposed between the control circuit board and the body. The heat sink and the body are provided respectively with apertures that are matching with the long rod screws for fixing the heat sink to the body. The cooling silica gel is provided between the control circuit board and the heat sink.

Disclosed is an ROV propeller tailhood comprising a body a control circuit board, a heat block, a thermal silica gel and long rod screws. The heat sink is fixed to the bottom of the control circuit board and disposed between the control circuit board and the body. The heat sink and the body are provided respectively with apertures that are matching with the long rod screws for fixing the heat sink to the body. The cooling silica gel is provided between the control circuit board and the heat sink.

An embodiment can include a vessel-towed system that includes a first towing/communication interface system, e.g., a first tow cable with a fiber optic system, and spaced apart buoys for supporting the first tow cable. A first mobile structure including a first control system and first type of emitter, e.g., an attraction system, is connected to the first tow cable. A second mobile structure is provided that can include an underwater towed emitter such as an audio emulation system. The first and second emitters can be configured emit a first and second plurality of emissions for inducing a receiving entity response. The second mobile structure is coupled with the first mobile structure with a second tow cable that comprises another fiber optic cable. An automated response or manual control systems can be provided on the towing vessel and the first mobile structure adapted to operate the first and second emitters.