573results about "Fishing" patented technology

The invention discloses an underwater LED fish gathering lamp control method based on a light field scattering model, and the method comprises the following steps: obtaining water optical characteristic parameters and environmental parameters of a target water area in real time, and building an underwater light field scattering model through employing a radiation transfer equation in combination with a Monte Carlo simulation method; with improvement of target fish school gathering efficiency and reduction of energy consumption as optimization objectives, environment parameters are taken as constraint conditions, illumination effects under different LED parameter combinations are simulated through a light field scattering model, and LED control parameters with optimal comprehensive performance are determined; a control instruction is generated according to the LED control parameters, and the working state of each LED unit is adjusted; meanwhile, fish school gathering data and current change values of water temperature, salinity and turbidity are monitored in real time and fed back to the light field scattering model for parameter correction, and closed-loop control is formed. The underwater LED fish gathering lamp control method solves the technical problems of low light field distribution prediction precision, insufficient fish school visual matching performance, poor environmental adaptability and unbalanced energy consumption optimization in the existing underwater LED fish gathering lamp control method.

The utility model discloses a mandarin fish domestication feeding device which comprises a feeding pipeline and a bait temporary storage tank arranged at the upper end of the feeding pipeline, a feeding hopper is arranged at the upper end of the bait temporary storage tank, and the feeding pipeline comprises a vertical pipe with the upper end in butt joint with the bait temporary storage tank and a horizontal discharging pipe in butt joint with the bottom of the vertical pipe. One end of the horizontal discharge pipe is connected with a high-pressure water source or air source; the vertical pipe is of a multi-section telescopic rod structure. A cathode ring piece and an anode ring piece are arranged at the two ends of the vertical pipe, and the cathode ring piece and the anode ring piece are connected with a pulse generator used for outputting pulse signals and a pulse power amplifier used for controlling output voltage through wires. The fish feeding device can achieve feeding at different depths, can feed live fish, dead fish and feed according to different proportions, is simple and convenient to operate, greatly reduces the workload of manual feeding, and can be widely applied to the field of bait feeding.

The invention relates to the technical field of fishery water conservancy and hydropower engineering, and discloses a floating type fish collecting device for water conservancy and hydropower engineering, which comprises a floating platform, a net cage fixedly connected to the bottom of the floating platform, a support frame fixedly connected with the net cage and arranged on the bottom of the floating platform, and a plurality of groups of fish inlets arranged on the net cage; the fish luring mechanism is arranged on the floating platform, a feeding assembly is arranged on the side, close to the net cage, of the fish luring mechanism, a bait bag is connected to the feeding assembly, and the fish luring mechanism drives the bait bag to evenly rotate in the net cage through the feeding assembly; the inner gear ring is arranged on the outer wall of the floating platform, a linkage mechanism connected with the inner gear ring is arranged on the floating platform, and a fish collecting assembly is arranged on the side, close to the net cage, of the inner gear ring; according to the device, the diffusion effect of bait can be improved, waste of the bait is reduced, meanwhile, the trapping range of fishes is expanded, vigilance of the fishes is reduced, and the fish trapping effect of the device is improved.

The invention discloses a deep-sea lamplight trapping type continuous pumping fishing device and method, and relates to the field of marine fishery fishing, and the deep-sea lamplight trapping type continuous pumping fishing device comprises a sonar detection system, a lamplight trapping system, a negative pressure pumping unit, a flexible conveying system and a control system which are mounted on a ship; the sonar detection system comprises a sonar detector; the lamplight trapping system comprises a plurality of fish luring lamps which are put underwater at a certain depth; the negative pressure pumping unit comprises a fish pump mounted on the ship; the flexible conveying system comprises a winch arranged on the ship, a fish suction hose is wound on the winch, one end of the fish suction hose is connected with the negative pressure pumping unit, and a fish suction protective cover is arranged at one end of the fish suction hose; the control system comprises a lifting frame installed on the ship, a plurality of traction ropes are connected to the lifting frame, and a plurality of lifting winches used for controlling the traction ropes to stretch out and draw back are arranged on the lifting frame. According to the method, target species are caught better and accurately, damage and waste to fishes are reduced, and the integrity of caught fishes is improved.

The utility model relates to the technical field of ecological environment detection, in particular to an underwater plankton sampling device which comprises a main body, a sampling driving component is arranged in the main body, and a control collecting component is fixedly connected in the main body; according to the utility model, the sampling depth can be accurately controlled by utilizing the depth sensor, in order to meet different research requirements, the tube wheel is driven by the motor to wind the sinking tube, and the automatic control driving mechanism can quickly complete sampling and can drive the sampling barrel to move up and down in water to realize sampling at different depths, so that the sampling efficiency is improved. The microprocessor is used for controlling the operation of the depth control mechanism and the driving mechanism, automatic sampling is realized, the inner wall of the sampling barrel is smooth, attachment and damage of plankton in the sampling process are avoided, automatic sampling is realized through the control unit, the operation is simple, and the use is easy; the sample collection container can be used for storing sampled plankton samples, so that the samples are prevented from being polluted.

The invention discloses a sustainable luring ecological floating island system which is characterized in that fish schools in an open type water area are induced to enter a water area where an ecological floating island is located through planned enhancement releasing feeding and going out, and the fish schools in the water area where the ecological floating island is located are captured through a fishing device and put into a besieging space. The method can ensure that the species and number of aquatic organisms in an ecological floating island ecological system are kept relatively stable within a certain time, conforms to the development concept of sustainable fishery, can enable fishing and fishing pleasure and ecological environment protection to cooperatively develop, can ensure that the fishing and fishing pleasure can be continuously and healthily carried out for a long time, and has a wide application prospect. Therefore, a sustainable and stable fishing place is provided for fishing enthusiasts through a sustainable inducing and breeding combined mode, and meanwhile protection and recovery of a water area ecological system are considered; the invention further discloses a sustainable fishing method of the sustainable luring ecological floating island system, and by means of a sustainable luring combination mode of the ecological floating island system, catching and fishing activities can be continuously carried out.

A gateway for use in a scallop tray comprises a passageway 1 having an external opening at one end and an internal opening at an opposing end. A hinge 11 is included adjacent to an upper periphery 9 of the passageway and a gate in which each of a plurality of independently-movable arms 17 are pivotable about the hinge between a closed position (in which the arm extends across the passageway) and a deflected position (in which it is spaced from the lower periphery 3 of the passageway.) To enter the gate, a scallop needs only to push against at least one of the arms, moving it into its deflected position. A scallop trap is provided comprising a chamber and the gateway, as well as a method of retaining scallops within a scallop trap using the gate.

The invention discloses an ROV system carrying a multi-degree-of-freedom mechanical arm and a using method, the ROV system comprises the multi-degree-of-freedom mechanical arm, a collecting net cage, a plurality of underwater cameras, a plurality of LED lamps, a sonar and a plurality of underwater sensors, and by carrying the multi-degree-of-freedom mechanical arm, the flexibility of the mechanical arm is improved; (2) a plurality of underwater cameras are installed on the two sides of an ROV to observe the environment, installed near a mechanical arm joint to observe the grabbing condition and installed on a catching cage to observe the collection condition of marine products; (3) a leakage-proof catching cage is specially designed, so that the caught marine products are prevented from leaking; 4) a biological recognition algorithm is provided, target species and non-target organisms are distinguished based on AI image processing, and the fishing efficiency is improved; (5) a sonar and a near-field sensor are arranged, and ROV underwater obstacle avoidance and terrain adaptation are achieved; and (6) ROV bottom-sitting operation is provided, different from a traditional ROV design that the buoyancy is slightly larger than the weight, the design gravity of the ROV is slightly larger than the buoyancy, so that the ROV can carry out bottom-sitting operation in a free state, and interference of a propeller to the environment is reduced.

This invention discloses a fishway illumination-based fish-attracting experimental device, belonging to the field of fish-attracting experimental technology. It includes: an experimental water tank, positioned above a reservoir, divided into an upstream, midstream, and downstream section, with an adaptation zone in the downstream section; a support frame erected above the midstream section, covered with a black cloth; and an illumination mechanism located on the upper wall of the midstream section, comprising LED lights and connecting components. Through the structural design of the connecting components, this invention allows for multi-dimensional flexible adjustment of the LED lights' horizontal position, illumination angle, and vertical height, breaking the limitations of fixed illumination modes in traditional experimental devices. The position and angle of the illumination can be adjusted according to experimental needs, and the adjustment operation is simple and convenient. It enables multi-parameter illumination research, allowing for quantitative study of the impact of different illumination conditions on fish migration behavior, meeting the needs of different experimental scenarios, and providing support for personalized fish-attracting research.

The invention discloses a soft-shell crab molting state monitoring and automatic capturing device, and particularly relates to the technical field of soft-shell crab molting state monitoring and automatic capturing, and the soft-shell crab molting state monitoring and automatic capturing device comprises a monitoring module, an environment self-adaption module, a capturing module, a control module and a remote monitoring module. According to the soft-shell crab molting state monitoring and automatic capturing device, through cooperative application of multi-sensor data fusion and a deep learning algorithm, full-process intelligent monitoring and automatic capturing of the soft-shell crab molting state are achieved; by combining technical means such as environment self-adaptive adjustment, wireless low-power-consumption communication, large-scale multi-pond linkage and night weak light optimization, efficient, stable and safe operation of the system in various breeding scenes is guaranteed, and meanwhile, modular software and hardware design and a distributed cloud edge collaborative architecture have a good application prospect. The device has excellent expansibility, maintenance convenience and intelligent operation and maintenance capability, and the automation degree and production benefits of soft-shell crab culture are greatly improved.

The utility model relates to a water fry conveying system which comprises a conveying device, a breeding device and a connecting assembly, the conveying device comprises a fish suction pump and a fish outlet, a fish suction pump pipeline is connected to the fish outlet, the conveying device is used for conveying fries, the fish suction pump is used for extracting the fries located in the conveying device, and the breeding device comprises a fish inlet. The breeding device is used for breeding fish fries, the connecting assembly comprises a conveying part and flexible joints, the two opposite ends of the conveying part are connected to the fish inlet and the fish outlet through the flexible joints correspondingly, and the conveying part is used for conveying the fish fries to the breeding device from the conveying device through the connecting assembly. The technical scheme provided by the utility model can be suitable for severe environments such as overwater stormy waves, the environmental adaptability is better, compared with a traditional fry putting mode, the putting time can be saved, damage to fries can be reduced, and the use reliability and safety are higher.

A flow generation device (100; 200; 300; 400; 500) for flowing liquid and biomass (101), the flow generation device comprises a first rotor (103; 303; 403; 503) having an axis of rotation (A) and an outer radius (R), a housing (104; 304; 404; 504) encompassing the first rotor and forming a closed liquid volume with an inlet (105) and an outlet (106) for liquid and biomass, the first rotor adapted to provide a circulating motive liquid flow (107; 507) within the housing, a liquid and biomass channel (109; 209; 309; 409; 509) separate from the housing and extending within the housing from the inlet to the outlet, the liquid and biomass channel comprising openings (111; 211; 511) for the circulating motive liquid flow to flow the liquid and biomass inside the liquid and biomass channel from the inlet to the outlet.

The invention discloses a fish collecting device based on negative pressure non-contact fish suction, a main body is a hollow fish collecting tank body, and the fish collecting device is provided with functional pipelines such as a fish suction pipeline, a fish discharge pipeline, a vent valve, an oxygen valve, a high-low drain pipe and the like, and pressure and liquid level sensors. The base is made of stainless steel, a transparent window is arranged in the middle of the base, and an access hole is formed in the top of the base. The control host is connected with the valves, the water pump and the sensor to achieve automatic control. During working, water is pumped into the tank body firstly, then part of water is pumped out to form negative pressure, fish is sucked through the negative pressure, inlet and outlet flow is kept consistent during fish suction so as to maintain constant pressure in the tank, and temporary rearing or fish discharging can be achieved. The device avoids mechanical damage to fish bodies, and is relatively simple in structure, low in cost and suitable for catching and conveying fishes in large-scale facility culture in deep and far sea.

A system for underwater hunting contains a plurality of components which allow for customization of the speargun based on the user's needs and the conditions where a user is hunting. By allowing rapid additions or removals of certain components, the invention allow the user to easily modify the firing characteristics of the speargun, and thus target a wider range of prey across a wider range of environmental conditions than those designs currently available in the prior art.

Provided are a sea condition prediction device, a sea condition prediction system and a program with which it is possible to more effectively and more accurately display sea conditions in a high resolution on board a ship.　This sea condition prediction device (10) comprises: a sea condition data acquisition unit (101a) which acquires first predicted sea condition data for a predetermined area; an observation information acquisition unit (101b) which acquires seawater observation information from a detection unit (20) installed on a ship; and a sea condition data calculation unit (101c) which, on the basis of the first predicted sea condition data and the observation information, calculates second predicted sea condition data having a higher spatial resolution than the first predicted sea condition data.

The utility model discloses an octopus trapping and recycling device, which belongs to the technical field of octopus trapping and comprises a trapping device and a recycling device, the trapping device comprises a plurality of trapping tanks, a trapping rope and fish-shaped octopus hooks, the trapping tanks are arranged on the trapping rope, the trapping tanks are made of transparent materials, and the recycling device is made of transparent materials. The fish-shaped octopus hook is dragged at the bottom end of the interior of the trapping tank, a plurality of water leakage openings are formed in the bottom of the trapping tank, the recycling device is installed on a boat side of a fishing boat, and the trapping rope recycles the trapping tank through the recycling device and takes out octopus from the trapping tank. Octopus is attracted into the trapping tank through the fish-shaped Octopus hook, and the soft hook on the fish-shaped Octopus hook prevents the Octopus from escaping from the trapping tank; during recovery, the trapping rope is pulled, the trapping rope enables the main pipe to rotate on the supporting shaft, and pulling is easier; the tank opening of the trapping tank is clamped between the two round rods, and the octopus is dug out in time; the octopus trapping and recycling device improves the efficiency of trapping and recycling octopus.

The invention provides an intelligent fishing method, device and system and a storage medium. The method comprises the following steps: acquiring a target image sequence of an underwater environment in a to-be-detected water area containing fishes; performing feature extraction and feature classification processing in sequence based on the target image sequence, and determining a target recognition result of the target fish; determining carrier pose data of the intelligent fishing system according to a target pixel coordinate and a target image sequence corresponding to the target recognition result, and obtaining a historical position sequence and a target motion feature of the target fish and inertial measurement unit data of the intelligent fishing system; carrying out filtering processing based on the carrier pose data, the inertial measurement unit data, the historical position sequence and the target motion characteristics, and determining a target positioning result and a target prediction trajectory result of the target fish; and based on the target identification result, the target positioning result and the target prediction trajectory result, a harpoon launching device is controlled to release a harpoon for fishing operation, so that the fishing accuracy is improved.

The utility model relates to an artificial fish reef stichopus japonicus proliferation catching technology, in particular to a stichopus japonicus trapping device for an artificial fish reef area. The device adopts a net cage structure, a net cage frame is made of corrosion-resistant metal profiles or PE profiles, soft nylon nettings are fixed on the net cage frame to form the bottom of the net cage and the periphery of the cage body, and movable doors which are movably connected and can be opened and closed are arranged on the periphery of the cage body of the net cage, so that the stichopus japonicus in an artificial fish reef area can enter the cage body. According to the arrangement form and scale of an artificial fish reef area, fixed-point pile arrangement and throwing of the stichopus japonicus catching device are carried out, the stichopus japonicus catching device can be independently used and can be arranged in rows for use, arrangement is convenient, use is flexible, and the stichopus japonicus catching device is suitable for being used in various different artificial fish reef construction sea areas.

The invention relates to the technical field of breeding industry, in particular to an isolation purse seine device for temporary breeding of seafood products, which comprises a floating frame, an octagonal hole is formed in the middle of the floating frame, a protective fence is arranged on the outer side of the top of the floating frame, and pull ropes are arranged at the bottom of the floating frame at intervals. The inner side of the top of the floating frame is provided with a winding assembly provided with a surrounding net. A rollable blocking net is arranged, and the whole blocking net is hung downwards under the water surface in a net bag mode and is stabilized by hanging a gravity block. When seafood capturing operation needs to be carried out, the octagonal rotating rollers are installed on the inner side of the upper edge of the surrounding net and connected through the elastic universal joints, the octagonal fixing frame can be clamped and fixed through the guide wheels, control is carried out through the top winding wheel, and therefore the surrounding net can be lifted and folded in a winding mode.

The invention belongs to the technical field of illumination, and particularly relates to an air-cooled fish gathering lamp and a fan replacement method of the air-cooled fish gathering lamp. The air-cooled fish gathering lamp comprises a substrate, an air-cooled fish gathering lamp body and a lamp cover, a light emitting unit mounted on the substrate; the heat dissipation piece comprises an installation part and a heat dissipation structure, the substrate is installed on the installation part, and the heat dissipation structure is located on the side, back on to the substrate, of the installation part; the middle plate is connected with the heat dissipation piece, a mounting wall is arranged on the middle plate, a mounting cavity is defined by the mounting wall, and a clamping structure is arranged on the mounting wall; the fan assembly comprises a shell and fan blades, the fan blades are mounted in the shell, and the shell comprises a first mounting plate; when the first mounting plate is located in the mounting cavity and located at the first angular position, the first mounting plate is located outside the clamping structure; when the first mounting plate is located in the mounting cavity and located at the second angular position, the first mounting plate is connected with the clamping structure in a clamped mode. According to the invention, the fan of the fish gathering lamp can be replaced by hands.

The invention discloses a fish repelling method and system based on multi-frequency sound wave cooperation and dynamic environment perception. The method comprises the steps that water area environment parameters are acquired, and the types and the density of fishes in the water area are recognized through sonar, water velocity and water quality parameters; matching an auditory sensitive frequency band set according to the fish species, and constructing a multi-frequency-band sound wave emission parameter set in combination with the water area environment parameters; according to the sound wave emission parameter set, the transducer array is controlled to emit a multi-band composite sound wave signal, and a sound field with a coverage angle of at least 180 degrees is formed; and monitoring the driving effect in real time, and dynamically adjusting the multi-band sound wave emission parameter set according to the density change of the fish school. According to the method, the fish repelling efficiency can be remarkably improved, the influence on non-target species is reduced, and an innovative solution is provided for ecological protection of water conservancy projects.

The utility model relates to the field of freshwater snail capturing, in particular to a pomacea canaliculata trapping device. The device comprises a water-permeable basket body with a top cover, and one or more side walls of the basket body are provided with oval funnel channels or round funnel channels. According to the device, LED lamp luring commonly used in previous food luring tests is changed, holes are formed in the side face of the basket body, natural water flow is utilized to enable smell of luring food to be transmitted to water, and the ampullaria gigas is luring into the basket body; height differences exist between the elliptical holes and the round holes and the bottom of the basket body, so that the pomacea canaliculata cannot escape; the pomacea canaliculata gathered through food attraction can be conveniently treated in a centralized manner; according to the device, the attractant can be taken out and added at any time in the test process, the problem that the attractant effect in the later test period is reduced due to degradation of the attractant is solved, the device is simple in manufacturing method, materials are easy to obtain, cost is low, pesticide use is avoided, and the device is economical, practical and environmentally friendly.

Spear fishing devices with handstraps are provided. In some embodiments, articles are provided that comprise handstraps extending up to a front end of a shaft handle, allowing users to pinch the shaft. Further, in some embodiments, a handstrap extending over a front end of a shaft is provided, offering users firm control and comfortable grabbing of a shaft. Further, in some embodiments, a spear fishing device comprises a detachable shooter, which will remain on users'hands after launching a projectile toward targets. The detachable shooter feature increases the projectile's traveling distance and aiming accuracy.

The utility model discloses a fish culture net cage device and system, and relates to the technical field of fishery breeding, the device comprises a floating frame, the floating frame floats on the water surface, and the side face of the floating frame is surrounded by a flexible retaining wall; the box body part is hung at the bottom of the floating frame, and a water passing device communicated with an external water body is arranged on the side surface of the box body part; the pollution discharge module is arranged at the bottom end of the box body part and can discharge fish manure into an external solid-liquid separation device; the neck bush fishing box body is placed in the box body part, the inner space of the neck bush fishing box body forms a fish culture space, and the neck bush fishing box body can be lifted upwards from the interior of the box body part. According to a fish culture net cage system formed by a plurality of fish culture net cage devices, fish in the fish culture net cage system can be conveniently caught by lifting the neck bush catching box body upwards, and catching operation can be achieved without pumping out water in a pond.

The invention relates to a bionic rotifer preying wheel disc type composite underwater target collection device and method, the collection device comprises an underwater robot and a bionic collection head, and the underwater robot is provided with a high-definition camera, a foresight sonar, an adjustable highlight LED underwater lighting lamp and a seabed in-situ metal measurement sensor; the bionic collecting head is provided with a bionic roller wheel and a conveying pipeline; the conveying pipeline is of a Venturi tube type conveying structure, and bionic protruding structures are arranged on the surfaces of the bionic roller wheels. The bionic roller wheels are coaxially connected with rotating output shafts of the waterproof driving motors correspondingly, and the waterproof driving motors drive the bionic roller wheels on the two sides of the conveying pipeline to rotate and vibrate relatively. Disturbance on a seabed sedimentary layer and influence on a seabed ecological environment can be reduced, so that collecting mechanical parts are not easy to damage in operation, the service life is prolonged, and the safety and the accuracy are improved; seabed ocean current disturbance is reduced, and an acquisition path is accurately controlled; energy consumption is reduced, jamming is avoided, sampling efficiency is improved, and the application range is widened.

The invention discloses a marine economic fish capturable quantity evaluation method and system based on an acoustic technology. The method comprises the following steps: dividing an offshore target area into a plurality of monitoring areas; sound wave data are collected through an acoustic detection device, and initial fish school density and range are obtained through LMS filtering processing in combination with fish sound wave characteristics; screening a core area and generating a detection route; initial data are corrected through underwater image detection; analyzing fish school migration distribution based on path probability and an improved A-star algorithm; and checking the capturable quantity in combination with a resource limitation standard. The system is provided with a plurality of data dynamic processing flows corresponding to the method, the problems that an existing method is low in monitoring precision, inaccurate in migration analysis and unscientific in capturing amount checking are solved, the accuracy and scientificity of capturing amount evaluation are improved through differentiated region division, dynamic data correction and intelligent migration analysis, and the capturing amount evaluation efficiency is improved. And a technical support is provided for sustainable development of fishery.

The speargun for underwater fishing comprises a metal spear provided with one or more engagement heels, a hand grip having a retaining mechanism for retaining the spear and provided with trigger for releasing the spear, a barrel having an upper longitudinal guide that slidingly supports the spear, a terminal head for engaging at least one rubber band for the propulsive thrust of the spear, the head having a front recess where at least one permanent magnet for attracting said spear is positioned.

To acquire a group level of an aquatic organism.SOLUTION: An underwater monitoring system 1 comprises an underwater photographing system 15 for photographing underwater and a server device 40 capable of communication with the underwater photographing system. The underwater photographing system transmits image data of the underwater photographing to the server device. The server device comprises: a communication unit which receives the image data from the underwater photographing system; and image discrimination means which discriminates the type and the group level of an aquatic organism projected in the image data received from the underwater photographing system.SELECTED DRAWING: Figure 2

A composable insert system for converting a standard container, such as a storage tote, into a Do-It-Yourself (DIY) live trap. The system includes three modular components: a main flange body with an external thread and receiving slots, a plurality of individual thorny spike elements with bases that snap into the slots, and a lock nut. When assembled through an aperture cut into a container, the flange body is secured by the lock nut, and the attached spikes form a conical, one-way passage into the container's interior. The modular design allows for cost-effective manufacturing via simple molds and provides a versatile, scalable solution for users to create customized traps of various sizes for pests like rodents and fish. For aquatic use, the resulting trap can be made buoyant with foam or weighted to sink.