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2866 results about "Fishing" patented technology

Fishing is the activity of trying to catch fish. Fish are normally caught in the wild. Techniques for catching fish include hand gathering, spearing, netting, angling and trapping. “Fishing” may include catching aquatic animals other than fish, such as molluscs, cephalopods, crustaceans, and echinoderms. The term is not normally applied to catching farmed fish, or to aquatic mammals, such as whales where the term whaling is more appropriate. In addition to being caught to be eaten, fish are caught as recreational pastimes. Fishing tournaments are held, and caught fish are sometimes kept as preserved or living trophies. When bioblitzes occur, fish are typically caught, identified, and then released.

Ice crystal evaporator and ice crystal water cooling device producing from same

ActiveCN102095290AWon't burstShort flow timeIce productionEvaporators/condensersCooling temperatureEvaporator
The invention relates to an ice crystal evaporator and an ice crystal water cooling device producing from the same, belonging to the technical field of refrigeration. The ice crystal evaporator is characterized in that a liquid inlet channel is formed by an evaporator tube, a liquid inlet and a liquid outlet in a tubular casing; and the outer channel of the evaporator tube of the tubular casing is divided into more than one S-shaped channel forming a water return channel through a water inlet of a water divider and a water outlet of a water collector. The ice crystal water cooling device is characterized in that the return air inlet of the ice crystal evaporator is communicated with a compressor, a condenser, a liquid feeding valve, a dry filter, a liquid feeding electromagnetic valve anda thermostatic expansion valve in sequence, and then is communicated with the liquid inlet of the ice crystal evaporator; a cooling water inlet / outlet of the condenser is connected with a cooling tower in series; and a water inlet / outlet of the ice crystal evaporator is communicated with a water circulating pump and an ice crystal energy storage tank in series. The invention has the advantages ofhigh cooling efficiency, no icing and low cooling temperature and is suitable for production of energy storage central air-conditioning, marine fishing, seafood processing, fruit, vegetable or meat processing, and the like; the cooled medium is municipal water.
Owner:蒋军闽

Visible light and infrared fusion-based river no-fishing ship monitoring method and system

The invention provides a visible light and infrared fusion-based river channel fish banning ship monitoring method and system, and relates to the technical field of computer vision, and the method comprises the steps: firstly obtaining a visible light image sequence and an infrared image sequence of a river channel monitoring region; ship visual feature extraction and thermal feature extraction are carried out on the visible light image sequence and the infrared image sequence respectively to obtain a visible light ship feature set and an infrared ship feature set, and cross-source feature fusion processing is carried out on the two feature sets to generate a cross-source fusion feature set; and calling a pre-trained fish forbidding ship identification model to analyze the cross-source fusion feature set, generating a ship monitoring result including the ship type, the position change track and the suspected fish forbidding behavior identifier, and finally generating fish forbidding early warning information including the real-time position and behavior feature description of the suspected fish forbidding ship based on the ship monitoring result. And measures can be quickly taken to stop the fishing forbidding behavior.
Owner:CHINA TOWER CO LTD

Appearance characteristic-based hippocampus intelligent grading and pond-dividing culture method and system

The invention relates to the technical field of intelligent aquaculture and automatic processing, in particular to an appearance characteristic-based hippocampus intelligent grading and pond-dividing culture method and system, and the method comprises the following steps: S1, collecting sparse visual data and multi-source physiological data of hippocampus; s2, generating a three-dimensional digital twinborn model based on the sparse visual data; calculating a growth state grading index based on the three-dimensional digital twinborn model; s3, calculating a physiological stress index based on the multi-source physiological data; s4, comparing the physiological stress index calculated in real time with a preset safety stress threshold value and a critical stress threshold value, and generating a hierarchical adaptive correction strategy; s5, according to a grading self-adaptive correction strategy, controlling a flexible mechanical arm to execute fishing and pond separation operation; according to the method, the appearance and physiological data of the hippocampus are synchronously collected in a non-contact mode, the technical problems that the real condition of the hippocampus cannot be evaluated and damage is possibly caused due to target stress response caused by traditional physical intervention are solved, and the authenticity and effectiveness of original data are guaranteed.
Owner:FUZHOU UNIV

Block chain verification method for quality safety tracing of catches

The invention relates to the technical field of catch safety tracing, and discloses a block chain verification method for catch quality safety tracing. The method comprises the following steps: acquiring environmental parameter data of catches in the links of fishing, transportation and storage through a distributed sensor network, and encrypting according to a timestamp sequence to generate a catches environmental data chain; key environment indexes are extracted based on the data chain, an abnormal deviation degree is calculated by using a dynamic weight distribution algorithm, and a catch quality risk score is generated; dividing risk levels according to the risk scores, mapping data of different risk levels to a block chain differentiation storage layer, and constructing a fragment storage structure; performing redundancy verification on the high-risk data through an intelligent contract triggering mechanism, and calling a consensus node to perform cross verification to generate a verification result; and performing association analysis on the verification result and the risk score, updating the risk tag and synchronizing the risk tag to a block chain distributed account book. According to the method, full-link data tracing and verification of the catches are realized, and the data credibility and the quality control accuracy are improved.
Owner:FUJIAN ZHONGKE ZHONGXIN INTELLIGENT TECH CO LTD

Fishing port fishing boat berthing safety monitoring system

The invention relates to the technical field of fishing port safety monitoring, and discloses a fishing port fishing boat berthing safety monitoring system. The system comprises a fishing boat dynamic sensing module which collects dynamic position and attitude data of each fishing boat in a fishing port in real time; the berth state analysis module generates berth occupation state distribution information based on the data; the environmental parameter acquisition module acquires fishing port hydro-meteorological parameters in real time; the safety constraint initialization module outputs an initial safety monitoring constraint including an allowable yaw threshold value and a maximum allowable collision risk value in combination with a berth occupancy state and hydro-meteorological parameters; the parking risk assessment module executes risk quantitative analysis and generates risk level identification data by taking the initial safety monitoring constraint as a condition; a scheduling parameter optimization module optimizes berth resource scheduling according to the risk level identification data to obtain safety scheduling control parameters; and the alarm signal generation module converts an alarm dimension according to the safety scheduling control parameter and the dynamic position data updated in real time, and outputs a multi-stage acoustic alarm signal.
Owner:FUJIAN ZHONGKE ZHONGXIN INTELLIGENT TECH CO LTD

Leading-in structure of fisher

The invention relates to an introduction structure of a fisher, which belongs to the field of oil-gas field development and comprises an expansion drive, a base is arranged at one end of the expansion drive, an expansion guide structure is arranged at the other end of the expansion drive, and a flow guide structure is arranged on the inner side of the expansion drive. The expansion guide structure comprises expansion connecting rods and a plurality of rigid expansion flaps, the end, away from the base, of the expansion drive is connected with the rigid expansion flaps, and the expansion connecting rods are connected between the adjacent rigid expansion flaps. The expansion guiding structure completes expansion and folding actions through expansion driving, the expansion guiding structure enlarges the guiding area through the expansion action and also enlarges the projection area, and the expansion guiding structure pushes a fish in the guiding area through the folding action, so that the fish is correctly guided into the fishing tool. The invention provides an effective guide area in a larger range, and enhances the adaptability of the introduction structure to the fish form, thereby improving the efficiency and success rate of the fishing operation.
Owner:XINJIANG PETROLEUM ADMINISTRATION BUREAU +1

Integrated foldable storage fishing platform

The utility model relates to the field of folding fishing platforms, in particular to an integrated foldable storage fishing platform and fishing platform, which comprises a split type locking sleeve fixedly mounted at the top corner of a platform plate and provided with an insertion cavity for insertion of supporting legs, and the insertion cavity has an insertion direction extending from the top of the split type locking sleeve to the bottom of the split type locking sleeve. The support leg is provided with a first insertion position and a second insertion position along the insertion direction; the rotating piece is rotatably mounted in the split type locking sleeve and provided with a rotating shaft perpendicular to the insertion direction, and a penetrating cavity allowing the supporting foot to penetrate through is formed in the rotating piece; the effect of rotating the supporting legs to the back side of the table plate under the condition that the supporting legs are not completely separated is achieved through the split type locking sleeves internally provided with the rotating pieces, and the technical problems that in the prior art, a fishing table is not convenient enough to store, and the supporting legs are prone to being lost are solved.
Owner:兰山区超扬户外体育用品商行(个体工商户)

Intelligent fishing point dynamic prediction system and method based on multi-source marine environment data fusion

The invention discloses an intelligent fishing point dynamic prediction method and system based on multi-source marine environment data fusion. The method comprises the following steps: step 1, access, space-time alignment and pre-screening of multi-source heterogeneous marine environment data; step 2, priori knowledge base construction and suitability modeling based on target fish ecological habits; 3, constructing a fishing point prediction model fusing the multi-time-sequence environmental characteristics and deep learning; step 4, fusing two-channel prediction results under the Bayesian framework and quantifying uncertainty; 5, generating a dynamic mask of a real-time sea condition safety threshold value and fishery regulation space constraint; 6.1, constructing a comprehensive scoring function of the risk perception function. According to the method, multi-source heterogeneous data is constructed, a target fish ecological suitability model and a depth time sequence prediction model are combined, the fishing point posterior probability is generated through a Bayesian fusion mechanism, the prediction uncertainty is quantified, and dynamic fishing point recommendation with risk perception and compliance safety is realized.
Owner:NINGBO YUYAO TECH CO LTD

Transportation device for plastic fishing raft and operation method of transportation device

The invention provides a transporting device for a plastic fishing raft and an operation method of the transporting device. The transporting device comprises a plastic fishing raft body. The rail assembly is fixedly installed on a walkway plate of the plastic fishing raft body through a rail fixing frame, the rail assembly comprises a cross rail and a linear rail which are installed in a crossed mode, and a positioning groove and a climbing block are arranged at the crossed position; the cargo carrying assembly comprises a conveying frame, a handrail and a cargo body, the cargo carrying assembly is movably installed on the rail assembly through a power assembly, the power assembly comprises driving motors symmetrically arranged at the front end and the rear end of the bottom of the conveying frame, and each driving motor drives wheels on a wheel shaft to rotate through a driving gear; the treads of the wheels are matched with the track contact surfaces, and the rims of the wheels are matched with the side edges of the track assembly. The mechanical level of mariculture operation is remarkably improved, and the problems that traditional manual carrying is low in efficiency and poor in safety are solved.
Owner:FISHERIES RESEARCH INSTITURE OF FUJIAN +2

Courtyard water pool floating object automatic salvage system based on image recognition

The invention discloses an automatic courtyard pool floating object salvage system based on image recognition, and relates to the technical field of intelligent robots, and the system comprises an image sequence acquisition module which is used for continuously capturing and transmitting an image sequence; the hydrological state sensing module is used for quantifying the dynamic and morphological characteristics of the water surface to obtain an average drift velocity vector and a water surface gradient field; the visual target positioning module is used for detecting a floating object to obtain an apparent two-dimensional coordinate vector; the trajectory fusion prediction module is used for fusing the average drift velocity vector, the water surface gradient field and the apparent two-dimensional coordinate vector, and calculating predicted physical coordinates; and the salvage operation execution module is used for receiving the predicted physical coordinates and driving the mechanical arm to complete salvage operation. According to the method, hydrological perception and visual positioning are fused, visual errors caused by dynamic disturbance of the water surface are corrected, the floating object track is predicted in combination with system delay, salvage operation is innovated from passive following to active interception, and the success rate and efficiency are remarkably improved.
Owner:ANHUI XINMAI TECH CO LTD

Three-dimensional multi-dimensional ocean swimming animal monitoring method based on artificial intelligence

The invention provides a three-dimensional multi-dimensional oceanic nekton monitoring method based on artificial intelligence, and relates to the technical field of oceanic nekton monitoring, and the method comprises the steps: deploying a temperature-salinity-depth section plotter and an acoustic Doppler flow velocity section plotter, collecting data, configuring an environment parameter data set, obtaining a three-dimensional environment parameter data set, and obtaining a three-dimensional environment parameter data set; and a multi-dimensional environment parameter database is generated. Various ocean fishery resource investigation means are fused, an advanced artificial intelligence method is applied, three-dimensional multi-dimensional dynamic monitoring of the ocean swimming animals is achieved, on one hand, the number composition and space-time distribution of the ocean swimming animals, especially the vertical distribution characteristics can be monitored, the population dynamics of the ocean swimming animals and the relation between the population dynamics and environmental factors can be revealed, and on the other hand, the population dynamics of the ocean swimming animals can be monitored. By monitoring the swimming animals, basic data can be provided for population resource evaluation, and the method serves formulation of fishing quota of ocean economic swimming animals, delimitation of ocean protection areas and the like.
Owner:YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI

Fishing gear storage box

The utility model discloses a fishing gear storage box which comprises a box body and a turning cover connected to the upper end of the box body in a rotating mode, and a first fishing gear frame and / or a second fishing gear frame are / is detachably installed in the box body. The first fishing gear frame and the second fishing gear frame are arranged in the box body, the first fishing gear frame can be used for neatly placing a plurality of lead head hooks, the second fishing gear frame can be used for neatly placing a plurality of JIG fake baits and other fake baits, and the JIG fake baits and the other fake baits are not prone to falling off.
Owner:武叶华

Fishing gear storage box

The utility model discloses a fishing gear storage box which comprises a storage box body, the storage box body is of a single structure or a multi-layer structure formed by splicing and combining a plurality of storage box bodies, the storage box body comprises a box body and a turning cover rotationally connected to the upper end of the box body, and a first fishing gear frame and / or a second fishing gear frame are / is detachably installed in the box body. The first fishing gear frame is provided with a plurality of clamping grooves with upward openings, the second fishing gear frame is composed of a first containing frame and a second containing frame, the first containing frame is provided with a plurality of partition cavities with upward openings, and the second containing frame is provided with a plurality of notches with upward openings and partition grooves located on the right sides of the notches. The storage box has the advantages of being efficient in storage and carrying, reasonable in partition, capable of avoiding disorder and the like.
Owner:武叶华

Connecting structure of fishing float and fishing float assembly

The utility model provides a connecting structure of a float and a float assembly. The connecting structure comprises an upper float body and a lower float body, the lower float body and the upper float body are arranged independently; the connecting piece comprises a locking sleeve and a connecting base, the locking sleeve and the connecting base are arranged on the upper float body and the lower float body respectively, and the locking sleeve is detachably arranged outside the connecting base in a sleeving mode so that the upper float body and the lower float body can be detachably connected; a double-thread structure is arranged at the connecting position of the locking sleeve and the connecting base. The technical problems that a traditional float is low in assembling and disassembling efficiency and poor in use reliability are solved.
Owner:CHENGDU KONGHOU WUDAO FISHING GEAR CO LTD

Tool, system and method for performing fishing operations

A fishing tool (1) for performing a fishing operation to recover an object (2) in a subterranean well (3), comprising: an outer shell segment (100); an inner shell segment (200); wherein the tool (1) is configured to be moveable between: a scooping configuration wherein the outer shell segment (100) and the inner shell segment (200) are at least partially overlapping and form an open chamber (1200B) for receiving the object (2) into in use; and a closed configuration wherein the outer (100) and inner (200) shell segments form a closed chamber (1200A) for trapping the object (2) therein in use; wherein the tool (1) is configured to scoop the object (2) into the open chamber (1200B) in use by rotation of the outer (100) and / or inner (200) shell segments; and wherein the tool (1) is configured to move between the scooping configuration and the closed configuration by relative rotation of the outer (100) and inner (200) shell segments.
Owner:E HOLSTAD HLDG AS

Cooperative work system of sea cucumber culture fishing underwater robot

The invention provides a sea cucumber culture fishing underwater robot cooperative work system, and the system comprises a fishing boat module which is used as a water surface control center and provides calculation, communication and power support; the plurality of underwater robot modules are used for executing underwater autonomous navigation, target identification, sea cucumber fishing and data acquisition tasks; the umbilical cable collecting and releasing system module is used for collecting, releasing and managing an umbilical cable for connecting the fishing boat and the underwater robot; a cooperative control system module; a balance adjustment system module; according to the invention, through unified task allocation and dynamic path planning of a plurality of underwater robots, by using an improved A * algorithm and a UWB positioning technology, the plurality of robots can efficiently cover an operation area without omission, and the distance is calculated in real time to trigger an obstacle avoidance program, so that the obstacle avoidance efficiency is improved. The problems of low efficiency, repeated fishing, region omission, high collision risk and the like caused by a traditional manual region division or simple wireless communication cooperation mode are solved.
Owner:SHANGHAI TECHN INST OF ELECTRONICS & INFORMATION

Marine ecological management-oriented habitat suitability prediction method and system

ActiveCN120952285AEnsemble learningForecastingFishmonger'sTraditional knowledge
The invention relates to the technical field of marine ecological informatics, and discloses a habitat suitability prediction method and system for marine ecological management.The habitat suitability prediction method for marine ecological management.The habitat suitability prediction method for marine ecological management.The habitat suitability prediction method for marine ecological managementincludes the steps that traditional knowledge data of fishermen is obtained, and audio data is transcribed into a text format through a natural language processing technology; generating a traditional knowledge graph containing the corresponding relationship between the observation characteristics and the fishing results; carrying out canonical correlation analysis on surface observation characteristics and vortex physical parameters in the traditional knowledge graph, and converting traditional knowledge into quantitative expression of a vortex parameter space based on a mapping matrix; and adopting a random forest to integrate multi-source prediction results, taking a traditional knowledge prediction rule and a physical model calculation result as input features, and outputting a middle-layer fish habitat probability distribution diagram. The technical problem that traditional knowledge and a vortex physical model are difficult to effectively integrate for middle-layer fish habitat prediction is solved.
Owner:ZHUHAI OCEAN CENTER OF THE MINISTRY OF NATURAL RESOURCES (ZHUHAI OCEAN FORECAST STATION OF THE MINISTRY OF NATURAL RESOURCES)

Main body of fishing reel

ActiveCN309589391SZoologyFishing
1. The name of the design product: the main body of a fishing reel. 2. The use of the design product: the whole of the design product is used as a fishing reel, and the part of the design product is used as the main body of a fishing reel. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: Fig. 1. 5. Other circumstances that need to be explained: the design relates to partial design, and the part covered by red in each figure is not required to be protected.
Owner:DAIWA SEIKO CORPORATION

Octopus trapping and recycling device

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.
Owner:LUDONG UNIVERSITY +2

Bohai sea temperature prediction model based on fusion model

The invention provides a Bohai sea temperature prediction model based on a fusion model, the previous research mainly carries out prediction through single models, and the single models have corresponding limitations more or less. In order to solve the problem, a Bohai sea temperature prediction model based on a fusion model is provided. According to the method, through fusion of an Informer model and an LSTM model, and through feature optimization and XGBoost correction, the model obtains better prediction performance. According to the model, the prediction precision of the sea surface temperature of the semi-closed sea area is improved, and high-reliability data support is provided for ocean decisions such as storm surge early warning, fishing ground scheduling and ecological management.
Owner:JIANGSU OCEAN UNIV +1

Bimodal-based breeding operation fishing boat target detection device and method in long-distance complex scene

The invention discloses a bimodal-based breeding operation fishing boat target detection device and method in a long-distance complex scene, belongs to the field of image target detection, and is used for solving the problems that in the long-distance complex scene, a fishing boat in long-distance fishing operation is not obvious in feature and is easily confused with seeing a sea house target and a reef target. The first backbone network is used for inputting a visible light modal image and comprises a first feature extraction layer, and the output of the first feature extraction layer comprises visible light features; the second backbone network is used for inputting an optical flow modal image, the second backbone network comprises a first feature extraction layer, and the output of the first feature extraction layer comprises optical flow features; and the fusion module is arranged between the first feature extraction layer of the first backbone network and the first feature extraction layer of the second backbone network, inputs visible light features and optical flow features, and outputs fusion features including channel attention features and space attention features.
Owner:DALIAN OCEAN UNIV

Multifunctional intelligent control fishing reel

The utility model discloses a multifunctional intelligent control fishing reel, and belongs to the technical field of electronic fishing reels. The line wheel comprises a line wheel body, the line wheel body is connected with a line cup and a brake system, the line wheel body is connected with an electric control assembly and an intelligent assembly, the electric control assembly is connected with the intelligent assembly, the electric control assembly is provided with a control unit, an electric control board and a power source, and the intelligent assembly is provided with a voice control system and a key control system. The key control system is electrically connected with the braking system and used for controlling the braking system through key operation. The electronic fishing reel is intelligent, accurate in control and multifunctional, not only has basic functions of a traditional fishing reel, but also expands the function of intelligent control by integrating the intelligent assembly and the electronic control assembly, can adapt to requirements of different environments and fishing skills, meets requirements of fishing enthusiasts for multifunctional fishing gears, and is suitable for popularization and application. And more convenient, efficient and pleasant fishing experience is provided for fishing enthusiasts.
Owner:威海恒力户外用品有限公司

Apparatus for restraining fishing rods

An apparatus for restraining fishing rods that includes a base member and a pair of plate members. The apparatus also includes a plurality of clamps arranged for restraining a plurality of fishing poles wherein the clamps are mounted to the plate members. The apparatus includes a first ball and a second ball with a mounting member that extends outwardly from the bottom surface of the base member. A main housing member with an upper portion and a lower portion is operable to restrain movement of the main housing about the first ball. A second ball also with a mounting member is rotatably restrained within the lower portion of the main housing member. Finally, a lever arm extends outwardly from the housing member. The lever arm is operable to threadedly increase or decrease compression upon both balls as well as manually rotate the housing member, base member, and pair of plate members to a desired orientation.
Owner:STAINES CHRISTOPHER JAY +1

Holding ball of fishing reel

PendingCN121444893AReelsZoologyFishing
The invention provides a holding ball of a fishing reel, which can prevent seawater from permeating into the holding ball. A grip ball (20) is provided with: a fulcrum shaft (23) having an outer peripheral portion and fixed to a handle arm; bearings (24, 26) provided on the outer peripheral portion; a cylindrical member (112) rotatably provided on the fulcrum shaft via a bearing; a handle grip (100) having formed therein an insertion hole (110) through which the cylindrical member (112) is inserted from one end, the handle grip (100) having a fixed end (114) fixed to one end of the cylindrical member (112) so as to rotate integrally with the cylindrical member (112) inserted through the insertion hole (110), and an open end (116) supported by the other end of the cylindrical member; and a waterproof plug (120) for waterproofing the open end. The waterproof plug (120) is configured from an insertion part (122) that is inserted from the insertion hole (110) toward the open end (116), and a waterproof part (124) that is disposed on the outer peripheral edge of the insertion part and that comes into contact with the inner periphery of the insertion hole.
Owner:SHIMANO INC

Universal fishing tool and method of removing a fish from a wellbore

A method of removing a fish from a wellbore comprises attaching a fishing tool to a distal end of a conveyor, the fishing tool comprising a housing and a self-solidifying material disposed within a cavity of the housing and configured to transition from a relatively soft state to a relatively hard state; inserting the fishing tool attached to the conveyor into the wellbore; lowering the fishing tool over the fish in the wellbore to immerse at least a portion of the fish within the self-solidifying material; allowing the self-solidifying material to transition from the relatively soft state to the relatively hard state, thereby securing the fish to the fishing tool; and retracting the fishing tool attached to the conveyor from the wellbore to remove the fish from the wellbore.
Owner:SAUDI ARABIAN OIL CO

Apparatus for spear fishing

InactiveUS20260076349A1FishingZoologyFishing
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.
Owner:ALVAREZ CHRISTOPHER

Main body of fishing reel

ActiveCN309589390SZoologyFishing
1. The name of the design product: the main body of a fishing reel. 2. The use of the design product: the whole of the design product is used as a fishing reel, and the part of the design product is used as the main body of a fishing reel. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: Fig. 1. 5. Other circumstances that need to be explained: the design relates to partial design, and the part covered by red in each figure is not required to be protected.
Owner:DAIWA SEIKO CORPORATION

Speargun for underwater fishing

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.
Owner:CRESSI SUB

Fish body detecting and counting method for passage behind fish pump of fishing boat

The invention relates to a fish body detection counting method for a channel behind a fish pump of a fishing boat, and provides an NMS-free fish body detection model MGI-RTDETR based on an improved RT-DETR for small targets, rapid movement, strong blur, highlight shielding and limited shipborne computing power. The model integrates multi-scale grouping interaction, dynamic context mixing, detail fidelity fusion, deployment period re-parameterization and back projection up-sampling, and real-time detection of one fish and one frame is achieved. And in combination with lightweight multi-target tracking, outputting paragraph counting by adopting a one-way cross-line combined de-duplication strategy. According to the method, missing detection and time delay can be remarkably reduced, edge deployment is facilitated, and the method is suitable for near-real-time fishing estimation, operation monitoring and resource evaluation.
Owner:EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI +1