222results about "Fishing nets" patented technology

A method of controlling position of a trawl net is provided. The method may comprise: receiving, by a processor, a control input, wherein the control input comprises: (i) a selection of one of a plurality of position control modes, and (ii) a position control setpoint for the trawl net; receiving, by the processor, sensor data indicating a sensed position of the trawl net; generating, by the processor, a first trawl position control output based on the control input and the sensor data; determining, by the processor, a rate of change of bathymetry along a travel path of the trawl net; and in response to the rate of change of bathymetry meeting a threshold condition, generating a second trawl position control output by changing the one of the plurality of position control modes to another of the plurality of position control modes.

The utility model discloses a net trap fishing device, which is characterized in that a net trap assembly is provided with a fish luring assembly used for luring fishes to enter a trapping space and a viewing assembly used for observing the gathering situation of the fishes inside the trapping space and around the trapping space, so that the net trap fishing device abandons a low-efficiency fishing mode of a fishing rod, a fishing line and a fishing hook; according to the utility model, an open net trap is used, a visual fish attracting tool is arranged to attract a fish to enter a net trap channel, the net trap channel is closed visually to trap the fish, the net trap is further lifted to guide the fish to rise to a platform surface along with the net trap channel, and a hand dip net is adopted to dip the fish. Visual fishing and efficient net trap fishing scenes are realized.

A method of controlling position of a trawl net is provided. The method may comprise: receiving, by a processor, a control input, wherein the control input comprises: (i) a selection of one of a plurality of position control modes, and (ii) a position control setpoint for the trawl net; receiving, by the processor, sensor data indicating a sensed position of the trawl net; and generating, by the processor, a trawl position control output based on the control input, the sensor data and predicted trawl net position data. The predicted trawl net position data may be generated by: defining, by the processor, a plurality of parameters; receiving, by the processor, input data comprising vessel speed data, tow line payout data, and a candidate drag coefficient value for the trawl net; and determining, by the processor, a tow angle based on the plurality of parameters and the input data.

The utility model provides a deep sea net cage grouper delivery promoting device which comprises a machine frame, a floating block and a net cage, a moving mechanism is arranged at the bottom of the machine frame, the bottom of the machine frame is connected with a supporting plate, wire winding mechanisms are arranged at the two ends of the supporting plate respectively, the wire winding mechanisms are connected with a fishing net bag through pull ropes, a discharge pipe is arranged on the side face of the bottom of the fishing net bag, and a valve is arranged on the discharge pipe. A fixed supporting frame is arranged on the top surface of the floating block, a guide groove is formed in the top of the fixed supporting frame, a net cover is arranged on the top of the guide groove, a first pressing plate is connected to the inner wall of the fixed supporting frame through a first electric push rod, a horizontal plate is connected to the top of the supporting frame and slidably connected with a movable supporting frame, and a second pressing plate is connected to the inner wall of the movable supporting frame through a second electric push rod. According to the grouper fishing device, the fishing net bag is driven by the line winding mechanism to fish groupers, the working efficiency is improved, the two ends of the groupers are fixed through the first pressing plate and the second pressing plate, the groupers are prevented from jumping in the process of injecting the delivery promoting medicine, the amount of the injected medicine is guaranteed, and the delivery promoting effect is improved.

According to the technical scheme, the fishing net with the adjustable mesh comprises a frame body, sliding grooves are formed in the periphery of the frame body in a penetrating mode, mesh wires are arranged in the sliding grooves in a sliding mode, and two clamping plates rotating along the X axis and the Y axis respectively are rotationally arranged on the two corners of the frame body. Two fixing plates abutting against one sides of the two clamping plates respectively are fixed to other corners of the frame body, telescopic rods are arranged on the fixing plates, pressure springs are wound around the telescopic rods, and limiting plates abutting against the other sides of the clamping plates are arranged at the ends of the telescopic rods. According to the network cable fixing device, the size of a network cable is changed by changing the distance between every two network cables through sliding of the network cables in the sliding grooves, meanwhile, the positioned network cables are gradually pressed and fixed through rotation of the clamping plates, and after all the network cables are pressed and fixed, the telescopic rods drive the limiting plates to move so that one sides of the clamping plates can move to abut against the fixing plates; after the limiting plate is loosened, the limiting plate is driven by resilience force of the pressure spring to abut against the other side of the clamping plate.

The invention is a hose crane for a wellboat, comprising a crane arm (130) rotatable at least in the vertical plane on a rotatable swivel base (100), at least one rail (130) along the crane arm (130) for pulleys (140) distributed along the guide rail (132). The pulleys (140) suspend hose brackets (160) distributed along a suction hose (150). The suction hose (150) is arranged to extend from a wellboat's (105) inlet (107) and out to a suction nozzle (152). The suction hose (150) comprises an elongated, flexible inner hose portion (150i) extending from a crane foundation (102) to an elongated, central hose section (150m) with evenly spaced hose brackets (160) which are held underthe pulleys (140) freely movable in the longitudinal direction of the crane arm (130), and an outer elongated flexible section (150y) with a suction nozzle (152) held in a lifting wire (172) near an outer end of the crane arm (130).

A synthetic rope or cable having a supportive core (1) contained within an internal cavity of a hollow braided synthetic strength member (5), the supportive core (1) shaped to adapt to the internal cavity of the hollow braided synthetic strength member (5), the supportive core (1) sheathed within a flow shield (4); the hollow braided synthetic strength member (5) formed about the combination of the supportive core and the flow shield that sheaths the core; the flow shield formed of the braid strands and being a hollow braided construction; and the hollow synthetic strength member formed of the braided braid strands, characterized in that each braid strand forming a braided flow shield is formed of at least two yarns.

The utility model discloses a novel deepwater net bag which comprises a frame body, the edge of the bottom of the frame body is provided with a net body through a clamping and pressing assembly, one end of the top of the frame body is integrally provided with a connecting sleeve, and the end of the connecting sleeve is connected with a detachable handle through a quick dismounting assembly. Reinforcing ribs are distributed at the joint of the connecting sleeve and the frame body; the circle of clamping groove and the clamping plate matched with the clamping groove are designed on the edge of the bottom of the frame body, the edge of the net opening of the net body is attached to the interior of the clamping groove, the net opening is pressed through the clamping plate, and then the net body is fixed by penetrating the screws through the corresponding screw holes, so that the installation firmness of the net body is improved; a plurality of reinforcing ribs are designed at the joint of the connecting sleeve and the frame body, so that the whole structure is more stable, can be suitable for reciprocating movement in deep water, and is not easy to deform; according to the utility model, the handle which can be quickly assembled and disassembled is designed, so that quick and flexible assembly and disassembly are realized.

The application discloses a fishing device of a complete loading vehicle for an aquaculture pond, and belongs to the technical field of aquaculture equipment, which comprises a net spreading mechanism and a traveling mechanism. The traveling mechanism can move along the edge path of the pond. The net spreading mechanism is composed of a fixed-point component, a transfer component, a fishing net, a net stretching component and a winding component. The fishing net is released or retracted through the rotation of the winding component, and the movement of the traveling mechanism enables the fishing net to be unfolded along the edge of the pond to form a surrounding circle, so that the cultivation of the whole pond range is realized at one time. The lower moving seat in the net stretching component can be lifted along the vertical rail, so that the lower cable of the fishing net is lifted when the net is collected, and the upper cable is cooperated to realize the gathering, and finally the cultivation is gathered to the edge of the pond for easy collection. The device is operated through mechanization and automation, which significantly reduces the labor intensity, improves the fishing efficiency, and provides effective technical support for modern aquaculture.

The utility model discloses and provides an aquaculture pond which comprises a culture pond body, a plurality of sets of shells are fixedly installed on the top section of the culture pond body, the shells are all fixedly installed on the outer surface of the top end of the culture pond body, limiting sliding grooves are formed in the outer surfaces of the shells, and movable mechanisms are arranged on the inner walls of the shells. A movable mechanism is arranged on the base, one end of the movable mechanism is connected with a connecting block, the bottom end of the connecting block is connected with a sliding plate, the bottom end of the sliding plate is connected with a fixing block, one side of the fixing block is connected with a connecting ring, and the connecting ring is used for being connected with a fishing net. During harvesting, the fishing net can be stably and rapidly lifted up through precise driving of the air cylinder, and manpower and time cost are greatly saved.

The utility model relates to the technical field of fish culture, in particular to a rapid fishing device which comprises a main body frame and an inserting rod fixedly connected with the surface of the main body frame and further comprises an adjusting assembly. The adjusting assembly comprises a rotating shaft, the rotating shaft is rotatably connected with the inner wall of the main body frame, the surface of the rotating shaft is fixedly connected with a winding drum, the surface of the winding drum is sleeved with an adjusting rope, one end of the adjusting rope is fixedly connected with the surface of the winding drum, and the other end of the adjusting rope is fixedly connected with a fish cage; positioning holes are formed in the surface of the fixing disc, a fixing frame is fixedly connected to the surface of the body frame, positioning rods are slidably connected to the inner wall of the fixing frame, and first screw holes are formed in the surface of the fixing frame. By arranging the adjusting assembly, the distance between the two sets of fish cages can be rapidly adjusted in a labor-saving mode according to the widths of different fish channels, the size and weight of the whole device are small, carrying, moving and placing are convenient, and the convenience of the device is effectively improved.

The invention relates to a depth-adjustable jellyfish sampling device and a sampling method, and solves the problems that an existing fixed jellyfish sampling netting gear cannot effectively collect and correctly reflect the real growth condition of jellyfish when rainfall changes. Comprising a floating box floating on the sea surface, a jellyfish sampling netting gear is hung below the floating box through a movable sling, a rainwater collecting box is arranged above the floating box, an opening is formed in the upper surface of the rainwater collecting box, a plurality of layers of drainage holes are evenly formed in each side face of the rainwater collecting box from bottom to top, and a water level touch switch is further arranged on one side wall of the rainwater collecting box; the water level touch switch controls the depth of the jellyfish sampling netting gear by controlling the rotation angle of the winch. The depth of the jellyfish sampling netting gear is adjusted according to the rainfall condition, so that the jellyfish sampling netting gear is always matched with the main movement depth of jellyfish, the sampling efficiency in jellyfish culture research is improved, and the influence of rainfall factors on jellyfish sampling is eliminated as far as possible.

The utility model discloses a fishing net which comprises a net body, steel wire hoses and pull ropes, the edge of the net body is connected with a plurality of indicators, the indicators show the position of the net body in water, the two steel wire hoses are connected to the two ends of the net body, metal chains are connected into the steel wire hoses, and the pull ropes are connected with the net body. The steel wire hose is connected to the net body, the weight of the steel wire hose can be increased through the metal chain in the steel wire hose, the net body can stably fall to the water bottom, after water enters the steel wire hose, the steel wire hose is not prone to floating up, and the net body is not prone to floating up; whether the net body is fully unfolded or not can be conveniently judged by checking the distance between the two floaters, the floating sleeves can be colored, and the position of the net body can be conveniently seen.

The present invention relates to the technical field of fish survey in tidal creeks. Disclosed are a survey and sampling floating platform and quantitative evaluation method for fish in a tidal creek during flood and ebb tides. The floating platform comprises a floating platform frame and survey and sampling nets, wherein each survey and sampling net comprises a net mouth welded by a galvanized pipe. In the present invention, by means of the provided floating platform, corresponding sampling fishing nets are respectively lowered for collection during flood and ebb tides, and flow meter data is read to calculate tidal water volume flow, such that aquatic organisms and nutrients in the tidal creek during the flood and ebb tides can be comprehensively collected, the deficiency of related data collection during flood tides in existing research is made up for, accurate monitoring and quantitative evaluation of tidal creek organisms and substance transfer are achieved, and the types, quantities and distributions of tidal creek organisms during the flood and ebb tides, and changes in tidal water flow can be comprehensively understood, thereby deeply understanding the situations of tidal creek organisms and substance transfer, and providing important data support and decision-making basis for related research and ecological protection.

This utility model belongs to the technical field of fishing devices, specifically disclosing a fishing device including a lifting net, a biomimetic grass clump, a supporting floating platform, a winch, cables, a fixed anchor, and an operating floating platform. The lifting net consists of an air pipe and a fishing net. Four cables are equidistantly connected to the outer side of the air pipe along its circumference. Four supporting floating platforms are provided, floating around the lifting net. A first pull rope connects the four supporting floating platforms. A triangular support frame is fixedly installed on the top surface of the supporting floating platform. A pulley is rotatably connected to the top of the triangular support frame. One cable is wound around the pulley and connected to the shaft of the winch. The winch is fixed to a boat. The other three cables are wound around the pulley and connected to the fixed anchor. Multiple floats are connected circumferentially to the biomimetic grass clump. A second pull rope connects the operating floating platform to the first pull rope. This utility model has a simple structure, is easy to install, and is convenient and quick to operate. Furthermore, by creating a hiding environment for fish through aquatic plants, it can effectively improve fishing efficiency and catch volume.

The invention discloses a stratified sampling netting gear and a connecting method thereof. The stratified sampling netting gear comprises at least three sampling nets which are sequentially arranged from top to bottom, the upper net wing of the uppermost sampling net is connected with two upper connecting parts which are arranged up and down, and the two upper connecting parts which are arranged up and down are detachably connected through an upper connecting assembly; a lower connecting part connected with the lower net wing of the upper sampling net and an upper connecting part connected with the upper net wing of the lower sampling net in the adjacent sampling nets are detachably connected through a middle connecting assembly; the two upper connecting parts, which are arranged up and down, of the uppermost sampling net are connected to a top cross rod of the frame; the sampling device further comprises at least three longitudinally-arranged sliding rods, the sliding rods are slidably connected with the left side and the right side of the frame, the connecting positions of the adjacent sampling nets are installed on the sliding rods, and the connecting positions of the sliding rods and the adjacent sampling nets are relatively fixed through cohesion limiters. The sampling net can be conveniently and quickly replaced.

The utility model discloses a fish culture tank which comprises a tank body, a tank cover is hinged to the top of the tank body, an auxiliary assembly is arranged in the tank body, an air inflation assembly is arranged in the tank cover, the auxiliary assembly comprises sliding rails, the sliding rails are fixedly installed on the front inner wall and the rear inner wall in the tank body, sliding blocks are slidably connected into the sliding rails, and the sliding blocks are connected with the air inflation assembly. The utility model relates to the technical field of fish culture tanks. According to the fish culture tank, the position of the lower vertical partition plate is adjusted through the position of the sliding plate, the swimming range of internal fishes can be compressed through position adjustment, when the internal fishes are few, the fishes can be conveniently fished, and when the fishes are fished, pull rings on the two sides can be pulled, the pull rings move upwards to drive vertical rods and a lower bottom net plate to move upwards, so that the fishes can be fished conveniently. And the bottom net plate moves up and down, so that the fish inside can be moved into the air from the water, the fish can be moved into the air mesopores, the flexibility of the fish can be reduced, and the convenience of fishing is further improved.

Sun coral may be neutralized and collected using a sun coral neutralization and collecting system (1) of claim 1 by installing and attaching the sun coral neutralization and collecting system (1) proximate to a subsea structure; using the positioner (150) to move the sun coral neutralizer (100) along a surface of the subsea structure from a starting position along the subsea structure; neutralizing sun coral present proximate the surface of the subsea structure by energizing the heater (130) and using thermal energy supplied by the heater (130); and collecting neutralized sun coral using the collector to store the collected neutralized sun coral.

The invention discloses an eel fry fishing gear and a using method thereof, the fishing gear is a double-pile winged single-bag expanding net, the mesh size of a net bag is innovatively limited to be 2.5 mm, and key structure parameters such as the perimeter, the height and the width of a net opening and the length of a netting are optimized. The method comprises four standardized operation steps of piling, net hanging, net hauling and net changing, and special permission and resource monitoring management are fused. According to the method, efficient and selective fishing of eel fry is achieved, the fishing efficiency is remarkably improved, meanwhile, the fishing rate of non-target economic fish larvae is effectively reduced, damage to ecological resources is relieved, and reliable technical support is provided for scientific management and industrial sustainable development of eel fry resources.

The present invention relates to a composite elongated body (3), comprising high performance polyethylene HPPE filaments (2) having a tenacity of at least 0.6 N / tex and a polymeric composition throughout (10) the composite elongated body, wherein the polymeric composition comprises a thermoplastic ethylene copolymer and a lubricant; and wherein the thermoplastic ethylene copolymer is a copolymer of ethylene and wherein said polymeric composition has a peak melting temperature in the range from 40 to 140°C, measured in accordance with ASTM E794-06. The present invention further relates to a lengthy body, an article and a crane comprising the composite elongated body; a method of manufacturing a composite elongated body; a method of manufacturing a lengthy body; and use of a polymeric composition.

The utility model provides a wear-resistant nylon fishing net, which relates to the field of fishing nets and comprises a plurality of buckled fishing nets and a protective structure. The protective structure comprises two shells which can be combined or separated, one shell is provided with a containing space, and the containing space is used for buckling the frame sleeve after the two shells are combined. According to the utility model, the second shell and the first shell are combined, and the buckle knots are framed and sleeved, so that the problem of abrasion caused by frequent friction of the buckle knots during normal operation is solved.

A movable marine fishing device comprises a support, a fixed ring plate, a movable ring plate and a lifting table, a solar cell panel is arranged above the support, an air bag is connected to the outer side of the support, a circle of supporting ring is arranged on the outer side of the air bag, and the lower end of the solar cell panel is perpendicularly connected with the supporting ring through a stand column; the lower end face of the supporting ring is perpendicularly connected with an opening and closing ring plate, a lifting fishing table is arranged in the opening and closing ring plate, a bottom net is arranged at the bottom of the opening and closing ring plate in a surrounding mode, and a lifting system is arranged on the support and connected with the lifting fishing table. The device can be arranged in the ocean, fish resources are obtained regularly in an automatic fishing mode, fishermen only need to take the fish resources regularly, manpower and material resources are saved, and the benefits of the fishermen are increased.

This invention discloses a smart trapping cage for use in various spatial environments such as water, land, trees, or air. It comprises a columnar body, a movable frame module, a drive module, a sensing module, and a bait device. The columnar body consists of a first net cover, a second net cover, and multiple support columns, forming a containment space for trapping organisms. The movable frame module includes a sliding frame and a folding net, which can slide along the support columns to form a closed trapping space. The drive module controls the sliding of the movable frame, driving the folding net during trapping and resetting. The bait device is placed within the containment space, using bait and sound and light to lure target organisms into it. The sensing module captures images of the target organism and information about the surrounding environment, transmitting the data to the control module for processing, analysis, and identification to determine whether to trap. The drive module then acts according to instructions, either activating the movable frame module to form a closed net or restoring an open net area, or not activating it at all. This smart trapping cage is intelligently operated and effective for various trapping scenarios.

The present invention provides methods and apparatus for efficiently removing fish from gill nets and consistently initiating the bleeding process by providing electronic units having a flat outer surface with a sensor thereon, and a piston-actuated blade mounted behind an opening in the surface adjacent to the sensor. Electronics are provided to receive signals from the sensor and to operate the piston. In operation, a fish entangled in a gill net is brought near the sensor along the flat surface such that the fish gill is near the blade opening. Upon sensing the fish, the piston is actuated causing the blade to briefly extend through the opening in the surface in order to simultaneously cut the net and also punch into the gill of the fish, and then quickly retract. This action cuts the fish free from the net with minimal damage to the net, and also initiates the bleeding process.

We provide a fisheries support system that improves safety and the probability of detecting fish schools. [Solution] The fishing support system 10 comprises a fishing boat 12, an aircraft 13, an imaging device 14, a communication means 15, and a display unit 16. The aircraft 13 is configured to take off from and land on the fishing boat 12. The imaging device 14 is attached to the aircraft 13 and is configured to obtain image data 17 by photographing the ocean 11 from the air. The communication means 15 includes a fishing boat-side communication means 151 installed on the fishing boat 12 and an aircraft-side communication means 152 installed on the aircraft 13. The display unit 16 is configured to display an image 18 based on the image data 17 on the fishing boat 12. The image data 17 is transmitted to the display unit 16 via the aircraft-side communication means 152 and the fishing boat-side communication means 151.

The utility model discloses a fishing net position instrument buoy which comprises a buoy body, an electric energy control part and an extension pipe, and a fishing net connecting ring is arranged at the bottom of the buoy body. The electric energy control component comprises a shell, a netsonde and a power supply, the shell is mounted at the top of the buoy body, the netsonde and the power supply are arranged in the shell, and the netsonde is connected with the power supply; the extension tube is a hollow tube, one end of the extension tube is connected with the shell, the other end of the extension tube is provided with a signal lamp, the signal lamp is connected with an electric wire, and the electric wire penetrates through the extension tube to be connected with a power source. The signal lamp and the netsonde are arranged on the buoy body, fishermen can quickly recognize the position of a fishing net, the signal lamp is arranged at the top of the extension pipe, the height of the signal lamp is increased, the signal lamp is prevented from being blocked by sea waves, and the fishermen can see the signal lamp conveniently.

This application provides a battery control method, controller, and storage medium for a smart fishing rod system. The battery control method for a smart fishing rod system is applied to a controller for the smart fishing rod system. The smart fishing rod system further includes a fishing rod, a sensor module, a rod holder, and an energy storage battery. The sensor module is configured to sense environmental parameters, the rod holder is configured to stabilize the fishing rod, and the energy storage battery is configured to supply power to the sensor module and the controller. The method includes: acquiring environmental parameters transmitted by the sensor module; and controlling the energy storage battery based on the environmental parameters if a hit signal transmitted by the sensor module is not received; controlling the energy storage battery to supply power to the rod holder if a hit signal transmitted by the sensor module is received; and acquiring pulling force parameters transmitted by the sensor module, which are obtained by the sensor module sensing the fishing rod controlled by the rod holder; and controlling the energy storage battery based on the environmental parameters and the pulling force parameters. This method can solve problems such as fishing rod shaking, improve fishing efficiency, and simultaneously reduce energy consumption of the system.

The invention provides a marine organism adhesion prevention material with a fluff structure on the surface as well as a preparation method and application of the marine organism adhesion prevention material, a strand formed by combining or twisting polyolefin monofilaments, high-strength PE (polyethylene) film-split fibers or ultra-high molecular weight polyethylene multifilament fibers is taken as a main body, and good strength and mechanical support are provided. The yarn with the fluff on the surface serves as the functional fiber yarn, and cohesive force and friction force between fibers in the yarn strand and between the yarn strand and the yarn can be increased after the functional fiber yarn is twisted with the main body yarn strand, so that the plied yarn or the multi-twisted yarn is not prone to fracture and loosen when bearing pulling force. Meanwhile, the fluff structure can be gathered on the surface of the plied yarn or the multi-twisted yarn, attachment of fouling organisms is remarkably inhibited by means of physical blocking and surface energy reduction, and the structure can remarkably inhibit attachment of large fouling organisms by increasing contact resistance, reducing attachment area and destroying ways of adhesion media secreted by organisms, so that the service life of the structure is prolonged, and the service life of the structure is prolonged. The non-toxic and environment-friendly antifouling effect is realized.

A control system for a towed object (1, 6; 20; 30; 50) in or on a body of water comprise one or more towing members (3) extending between the object (1) and a towing vessel (2). One or more ballast members (4) are movably connected to a respective one of said one or more towing members (3) and controllably movable at least a distance along its respective towing member. The towed object (1) may be controlled by moving one or more ballast members (4) on a towing member (3) in order to control the catenary (c) of a towing member (3). Individual ballast members (4) may be manipulated individually in order to correct, preserve or otherwise change the geometry of a trawl.

The utility model discloses a low-abrasion leisure trawl net for cleaning seabed. The low-abrasion leisure trawl net comprises a hard object collecting unit and a fish collecting unit which are sequentially arranged from bottom to top. The hard object collecting unit and the fish collecting unit are connected through a connecting assembly. The hard object collecting unit comprises a hard object collecting net, a net opening supporting piece and a plurality of blocking strips. The net opening supporting piece is fixed to a net opening of the hard object collecting net. The blocking strips are sequentially arranged at the net opening of the hard object collecting net at intervals to form a blocking curtain. The fish collecting net and the hard object collecting net which are independent of each other are designed, and the two collecting nets are connected through the connecting assembly, so that in the dragging process of the two collecting nets, fishes can be physically separated from seabed hard objects, physiological injuries of fish bodies are reduced, and the fishes can be conveniently collected through the hard object collecting net. And cleaning of the seabed is realized to a certain extent.