12results about "Acoustic vessel signalling" patented technology

The invention provides an offshore marine floating garbage salvage ship, relates to the technical field of marine floating garbage collection, and solves the problems that existing offshore marine floating garbage salvage is low in efficiency, high in cost, poor in environmental protection property, few in informatization equipment and the like. The ship comprises a ship body, a power system, an electric power system, a control system, a navigation system, an alarm system, a drainage system and a garbage collection system, and the power system comprises an angle-adjustable outboard outboard engine installed at the stern of the ship body, a diesel oil cabinet installed at the bottom in a cabin of the ship body and a driving operation system arranged in a cockpit of the ship body; the electric power system comprises a storage battery arranged in a tail peak tank of the ship body, a solar photovoltaic panel installed on the outer top of a cockpit of the ship body and a photovoltaic controller. The device has the beneficial effects that the device is suitable for operation in areas such as near-shore water areas, estuaries and ports, can efficiently collect sea floating garbage, and is flexible to operate, low in cost, good in environmental protection performance, complete in equipment and safer.

The invention discloses a high-voltage shore power safety access system and method for a ship danger area. The system comprises a high-voltage shore power connection cabin located in a dangerous area of a midship of a ship, a high-voltage shore power socket connected with a high-voltage shore power access distribution board is arranged in the high-voltage shore power connection cabin, a first multi-parameter safety assembly is arranged on the inner side of the cabin wall of the high-voltage shore power connection cabin, and a first airtight through piece is arranged on the cabin wall of the high-voltage shore power connection cabin; the positive pressure ventilation unit is located in a ship safety area and connected with the high-voltage shore power connection cabin through a ventilation pipeline so as to guarantee that the interior of the high-voltage shore power connection cabin is the safety area. The emergency warning control assembly is arranged on one side outside a cabin door of the high-voltage shore power connection cabin; the central control monitoring unit is electrically connected with the high-voltage shore power access distribution board, the positive-pressure ventilation unit, the first multi-parameter safety assembly and the emergency warning control assembly. According to the invention, the problems of uncontrollable safety risk, mismatching with the layout of an oil wharf and poor adaptability with different ship type scales when a high-voltage shore power system is arranged in a dangerous area can be solved.

A marine audio attenuation method for use with an audio system installed on a watercraft, the method including the steps of acquiring, determining and reducing. The acquiring step acquires location information of the watercraft. The determining step determines if the watercraft is in a selected location. The reducing step reduces an audio level delivered to speakers attached to the watercraft if the watercraft is in the selected location.

Embodiments of the present specification provide a hull-shaped unmanned submersible rescue robot for underground mines, comprising: a robot body; a sensing module; and a control device; wherein the sensing module is connected to the control device; wherein the control device is located in the robot body and is connected to a drive device of the robot body; wherein the sensing module comprises a pressure sensor and a thermal imaging sensor; wherein the pressure sensor is located at an outer bottom of the robot body, and the thermal imaging sensor is located at an outer sidewall of the robot body; wherein the pressure sensor is configured to sense a draft of the robot body and transmit the draft to the control device; and wherein the thermal imaging sensor is configured to sense a position of each individual around the robot body and transmit the position of each individual to the control device. The hull-shaped unmanned submersible rescue robot for underground mines according to the embodiments of the present disclosure is not limited by communication signals, is capable of automatically responding and searching for and rescuing personnel in the underground mines at the first time after a water inrush occurs in the underground mines, improves water inrush emergency rescue capability, and increases a survival probability of trapped individuals in the underground mines.

The utility model discloses a stern propeller monitoring alarm device which is characterized in that a front sealing element and a rear sealing element are respectively arranged at the tail and the head of a power cabin, a monitoring module which is annularly arranged along a main transmission shaft is arranged in the power cabin, the monitoring module is arranged close to the front sealing element, and an image capturing module and a flow velocity detection module are further arranged in the power cabin. An alarm module is arranged in the function cabin and electrically connected with the monitoring module, the image capturing module and the flow velocity detection module at the same time. According to the utility model, the leakage of the front sealing element possibly caused by accidents is monitored in advance through the monitoring module, the monitoring module can be instantaneously triggered by a large amount of inrush seawater once the leakage occurs, and the triggering is more scientific and accurate through the buzzing of the alarm module and the structural improvement of the triggering part; the annularly arranged monitoring modules are triggered in different regions, so that the leakage position can be quickly known; a flow velocity detection module is additionally arranged to monitor slight leakage; and an influence capture module is additionally arranged, so that the leakage condition is more accurately and intuitively prevented or known.

The utility model discloses an automatic alarm device for calculating a ship safety risk level based on big data, belongs to the technical field of alarm devices, aims to solve the problems that the alarm device cannot be conveniently maintained and replaced and cannot be dried, and comprises a connecting plate, a protective shell and an alarm device main body, the alarm device body is fixedly installed on the connecting plate, a connecting mechanism is arranged between the connecting plate and the protective shell, a connecting bolt is arranged on the connecting plate and connected with the connecting mechanism, a damp-proof mechanism is arranged on the protective shell and used for drying the interior of the protective shell, and the damp-proof mechanism comprises an installation assembly and a limiting assembly. According to the utility model, through the arrangement of the connecting mechanism, the connecting plate and the protective shell can be conveniently connected, and meanwhile, the protective shell can be conveniently detached from the outside of the alarm device main body, so that the protective shell can be conveniently maintained, and the convenience of the device in the using process is improved.

This invention relates to the field of deck fencing technology and discloses a combined structure of a deck fencing and equipment support. The structure includes an antenna mast, reinforcing rods, crossbars, a searchlight bracket, and a horn bracket. The antenna mast and reinforcing rods are fixed to the deck surface, and the crossbars connect the antenna mast and reinforcing rods to form a fencing along the edge of the deck surface. The upper end of the antenna mast is used to fix the antenna, and the searchlight bracket and horn bracket are respectively installed on the outer side of the crossbars. The searchlight bracket includes a first base plate, a rotating shaft, and a fan-shaped transmission structure. The rotating shaft is rotatably mounted on the crossbar, and the first base plate is fixedly connected to the rotating shaft. The fan-shaped transmission structure is anti-rotatingly connected to the rotating shaft, and its center is concentric with the central axis of the rotating shaft. The fan-shaped transmission structure is also connected to a driver to drive the first base plate and the searchlight to adjust their pitch angle. The horn bracket includes a second base plate and a reinforcing plate. The reinforcing plate is fixed between the second base plate and the reinforcing rod, and the second base plate is used to fix the horn.

The utility model discloses a marine alarm bell, and specifically relates to the technical field of marine alarm bells, the marine alarm bell comprises an external impact type electric bell assembly, the bottom end of the external impact type electric bell assembly is provided with a cast iron assembly, the cast iron assembly comprises knocking cast iron, and the center of the front surface of the knocking cast iron is rotatably inserted with a rotating shaft; the marine alarm bell can regularly clean a shell knocking cast iron by controlling the sleeving scraper to rotate, so that a rust layer is prevented from being formed on the outer surface of the knocking cast iron in a humid and salt mist environment on the sea, the situation that the outer surface of the knocking cast iron is corroded is further avoided, and when the knocking hammer strikes the knocking cast iron, the sound made by the knocking hammer is always clear, and the service life of the knocking hammer is prolonged. And meanwhile, when the sleeving scraping plate rotates, the conveying pipe and the atomization spray head can be driven to rotate, the atomization spray head is opened, the atomization spray head can spray an anti-rust agent to the outer surface of the knocking face of the cast iron assembly in an all-around mode when rotating, and knocking cast iron can adapt to the high-humidity and high-salt-mist environment.

The utility model discloses a water surface floating type drainage platform which comprises an overwater structure, an underwater structure and a pool bottom, and the overwater structure comprises a platform, two buoys and a warning alarm and control device; the underwater structure comprises a pump bin for placing a water pump and a probe rod; the buoys are two steel cylindrical sealed buoys, are parallel and are fixedly welded at the bottom of the platform at a certain interval to provide buoyancy for the platform, so that the platform floats on the water surface; the platform is arranged between the two buoys and is provided with an opening parallel to one axial side of the buoys to be manufactured into a C-shaped platform. The water surface floating device not only overcomes the influence of much sediment in a temporary reservoir of a stope on the water pump by additionally arranging a grounding prevention circuit break protection device and a water level alarm device, so that the water pump is convenient to hoist, but also can automatically disconnect a water pump circuit and trigger alarm when the probe rod touches the ground or the water level is ultra-low, so that the water pump is prevented from being damaged and equipment pipelines are prevented from being abraded by the sediment; the working principle and the structure are simple and reliable, the working intensity of operators is reduced, and meanwhile the reservoir dredging cost of enterprises is reduced.

This technology provides automatic navigation using the location of a school of fish detected by sonar as the target point. [Solution] An information processing device relating to one aspect of the present disclosure includes a control unit. The control unit is configured to acquire a search result for a school of fish obtained by the ship's sonar, which indicates the position of the school of fish relative to the ship; to set the position of the school of fish indicated by the acquired search result as a target point and activate the ship's automatic navigation; and to stop the automatic navigation when the ship reaches the position of the school of fish.

A marine seismic data acquisition system and method of conducting a marine seismic survey are disclosed. The system incorporates one or more surface vessels, and a plurality of autonomous nodes for acquiring seismic data at one or more seabed locations. Each node comprises a USBL, SSBL or SBL transducer and USBL, SSBL or SBL acoustic modem. A first acoustic positioning system is operable between one of the surface vessels and the nodes, the first acoustic positioning system being a USBL, SSBL or SBL system. Each node of the plurality of autonomous nodes has a USBL, SSBL or SBL beacon address, with respective groups of nodes having the same beacon address. The nodes are configured such that no two nodes with the same beacon address can actively communicate over an associated USBL, SSBL or SBL modem at the same time.

The utility model discloses a ship docking anti-collision alarm system, which is characterized in that detection units are arranged on two sides of a ship from a bow to a stern, the detection units are connected with a controller and output induction signals to the controller, and the controller is connected with an interaction unit and outputs collected signals to the interaction unit. The detection unit is provided with a fixing groove fixed to a ship side guardrail, the fixing groove is a T-shaped groove, the fixing groove is provided with a T-shaped rod in clearance fit with the fixing groove in shape, the T-shaped rod is composed of a transverse rod and a vertical rod, one end of the vertical rod is fixedly connected to the middle of the transverse rod, and the outer end of the vertical rod extends out of the fixing groove and extends out of the ship guardrail. A sensor used for sensing distance information is fixed to the outer end of the vertical rod. According to the system, the infrared sensors are installed on the two sides of the bow and the stern, the distance between the ship and a wharf or other obstacles is detected in real time, sailors are reminded through the buzzer alarm, and therefore the collision risk when the ship is in shore is effectively reduced.