131 results about "Cage aquaculture" patented technology

The invention discloses a deep and far sea cage culture typhoon disaster prevention and after-disaster rapid recovery method, which comprises the following steps of: carrying a high-definition camera by using an unmanned aerial vehicle to aerially photograph a cage water surface structure before a disaster, acquiring an underwater image by an underwater robot through sonar hierarchical scanning and the camera, and generating structure data and fish school data before the disaster; weak points such as frames, nettings and anchor chains are analyzed through three-dimensional modeling and are repaired and reinforced, the stocking density is optimized in combination with typhoon information, the risk of facility damage and fish loss is reduced, structural data and fish school data are repeated after a disaster, and the pre-disaster standard serves as a reference to compare and evaluate the frame damage degree, the nettings damage degree, the anchor chain breakage degree and the fish school escape or death degree; and generating a graded repair scheme and a disaster relief plan. According to the method, the detection precision and the evaluation efficiency are improved through multi-device cooperation and data fusion, the damaged part is rapidly positioned, the recovery strategy is optimized, and an efficient disaster prevention and reduction and after-disaster rapid recovery solution is provided for deep and far sea cage culture.

The invention discloses a satellite image-based marine ranch culture area distribution information extraction method and system. The method comprises the following steps of S1, making a marine ranch raft type and net cage culture area semantic segmentation data set based on a high-resolution optical satellite image; s2, constructing a bidirectional Fourier convolution long short-term memory network; s3, training a bidirectional Fourier convolution long short-term memory network by adopting the semantic segmentation data set; and S4, carrying out image segmentation on satellite image test data by adopting the trained bidirectional Fourier convolution long-short-term memory network to obtain marine ranch culture area distribution information. Compared with the prior art, the method has the advantages that feature extraction is carried out in the frequency domain and the space domain at the same time, the capturing capacity of the model for marine ranching raft type and cage culture area details and global features is enhanced, and the image segmentation precision and efficiency are remarkably improved.

The invention relates to a lifting type net cage culture structure based on a fan single-pile foundation, and the structure comprises the fan single-pile foundation which is used for being inserted into a seabed; the net cage is arranged on the fan single pile foundation in a lifting and sleeving manner in the height direction; the guide mechanism comprises a guide piece extending in the height direction, the guide piece is fixedly connected to the fan single pile foundation, and the net cage is arranged on the guide piece in a sliding mode. The lifting type net cage culture structure based on the fan single pile foundation has high safety and stability.

The invention relates to the technical field of aquaculture, and particularly discloses paracoccus pantotrophus P.p-O8 and application of the paracoccus pantotrophus P.p-O8, the paracoccus pantotrophus P.p-O8 is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number of the paracoccus pantotrophus P.p-O8 is CGMCC NO.26522. The invention relates to a microbial inoculum prepared from paracoccus pantotrophus P.p-O8. The method has a huge application prospect in improving the quality of aquaculture water and repairing the polluted sediments in the cage culture area, improves the water environment quality and the survival conditions of aquaculture organisms, repairs the eutrophicated polluted ecological environment, and has high environmental protection value and economic benefit.

A cage culture unmanned ship-borne unmanned aerial vehicle integrated inspection device disclosed by the present invention comprises an unmanned ship body, an inspection unmanned aerial vehicle, a docking platform, a battery replacement mechanism, a holding mechanism and a hatch cover component, a docking cabin is arranged in the unmanned ship body, the docking platform and the battery replacement mechanism are both arranged in the docking cabin, and the hatch cover component is arranged above the docking cabin. The battery replacing mechanism is arranged on one side of the docking platform, and the holding mechanisms are arranged on the two sides of the unmanned ship body. The parking platform is used for clamping and releasing the inspection unmanned aerial vehicle, and the battery replacement mechanism is used for implementing battery replacement operation on the inspection unmanned aerial vehicle; the enclasping mechanism is used for enclasping a handrail of the net cage to achieve parking. According to the invention, the water surface moving capability of the unmanned ship and the air flying capability of the inspection unmanned aerial vehicle are combined, all-directional inspection of a net cage culture area can be realized, and detection of environment data inside and outside the net cage is realized.

The invention relates to a self-cleaning module type gravity type net cage culture system which comprises a floating mat assembly, a floating mat assembly and a gravity type net cage culture system. The cage frame assembly comprises frames and floaters, each frame is arranged on two adjacent floating mat units, the two ends of each frame are connected with the two ends of the two adjacent floating mat units respectively, and the floaters are fixedly arranged below the frames; the plurality of oyster cages are hung on the frame and are used for culturing fresh oysters; the cleaning assembly comprises a mounting frame and cleaning mechanisms, the mounting frame is connected with the floating mat assembly, the mounting frame can swing relative to the floating mat assembly, the multiple cleaning mechanisms are arranged along the mounting frame at intervals, and each cleaning mechanism can make contact with at least two adjacent oyster cages; and / or each oyster cage is in contact with at least one cleaning mechanism. Compared with the prior art, the cleaning assembly cleans the oyster cage under the action of water flow and stormy waves, so that the time interval for cleaning the oyster cage on water is prolonged to 3-6 months.

The invention relates to the technical field of net cage culture, and discloses a culture net cage gauge pile lifting mechanism which comprises a connecting plate and a supporting column, and the supporting column is sleeved with the connecting plate in a sliding mode; a lifting assembly used for driving the connecting plate to climb along the supporting columns is arranged outside the connecting plate. The lifting assembly comprises a first tooth, a second tooth and a third tooth which are arranged on the outer side of the supporting column. And a switching assembly. When the gear cannot move normally due to the fact that the second teeth have problems, the positions of the group where the second teeth having problems are located and the group where the third teeth are located can be replaced, it is guaranteed that the gear can move normally in the follow-up process, it is guaranteed that the net cage can ascend normally, and normal progress of the work progress is guaranteed; and through cooperation of the control assembly, the pump body, the annular pipe and the spraying pipe, the second teeth with the problems can be marked, the second teeth with the problems can be found more quickly in the follow-up process, and therefore maintenance can be conducted more quickly.

The invention discloses a fish school quantity measurement method based on cage culture fish school sonar monitoring image denoising, and the method comprises the steps: obtaining an identified fish coordinate point P (x, y, d) of each identified fish in each single-circle sonar scanning image in one-time overall scanning of a target cage through step 1, step 2, step 3 and step 4 according to Dlt; the identified fish coordinate points are divided into a plurality of point clouds according to the spatial position relation condition of 0, do, all the point clouds are combined into an actual fish coordinate point, noise points, generated due to repeated identification, in the identified fish coordinate points obtained in the third step are filtered, boundary reflection noise points are filtered through the fifth step, and the final fish coordinate point is obtained. The number of fish schools in the target net cage is obtained by counting the coordinate points of the remaining identified fishes in the sixth step; therefore, the accuracy of fish school quantity measurement can be improved.

The invention provides an offshore wind turbine foundation of an integrated aquaculture net cage and a method, relates to the field of wind driven generators, and aims to solve the problem that fishing is inconvenient when the existing offshore wind turbine foundation is integrated with the net cage for aquaculture. The nodes can be driven by the lifting mechanism to ascend and descend relative to the top opening of the net cage, so that the bottom net ascends and descends to change the volume of the net cage, the bottom net descends to increase the volume of the net cage to meet the requirement for the breeding range during breeding, and the bottom net ascends to reduce the volume of the net cage to reduce the activity range of internal bred marine products during fishing. The problem of interference with the foundation frame caused by operation fishing at the deeper position of the net cage is solved, operation fishing is facilitated, and the fishing efficiency is improved.

The invention discloses a cage culture underwater netting damage identification method. According to the method, through a netting damage detection module carried by an underwater robot, a semantic segmentation model is utilized to segment a netting image, and a segmentation result is optimized in combination with image post-processing, so that a netting damage area is accurately identified; when it is detected that the netting is damaged, the underwater robot slowly gets close to a normal netting near a netting damage area, and a marker is fixed to the netting through an elastic clamp of the netting damage marking device; a stroboscopic signal lamp is arranged on the marker, so that the diver can be helped to quickly find out the damaged netting. The device has the advantages that the netting damage detection accuracy is high, the marking device is simple in structure and can be recycled for multiple times, the problem that the netting damage is difficult to find quickly when a diver maintains the netting is effectively solved, and the intelligent level of cage culture is improved.

The invention relates to the technical field of aquaculture, in particular to a net cage culture fish ingestion behavior recognition and accurate feeding system and a method thereof.The system comprises a multi-modal data acquisition module arranged around a net cage and used for acquiring video data and biological density information of fish behaviors, a data preprocessing module used for coding and compressing the video data, and a data processing module used for processing the coded and compressed video data; the biological density information is packaged, the 3D space-time attention analysis module receives the processed data, space-time features are extracted through a 3D deep learning model, and fish feeding behaviors are recognized. The multi-modal feature fusion module adaptively fuses the spatial-temporal features of the video data and the biological density information to generate ingestion intensity data, and the feeding control module calculates the vibration frequency according to the ingestion intensity data and controls the opening state of a netting door in a net cage, so that precise feeding is realized. The problem that a single data source is low in recognition accuracy in a complex underwater environment is solved, the recognition accuracy of the system under various water quality conditions is improved, and accurate feeding of fishes is achieved.

The invention relates to the technical field of aquaculture and ecological environment management, and discloses a novel pond ecological circulation culture method which comprises the steps that a pond is divided into four vertical functional areas including an upper-layer floating bed planting area, a middle-layer net cage culture area, a bottom-layer benthic purification area and a microbial conversion area, a water circulation system is arranged in a matched mode, the area needed by pond site selection is 3000-4000 m, and the water depth is 3.0-3.5 m. The water quality is automatically controlled through a sensor containing dissolved oxygen and the like, and the biological monitoring module is automatically controlled through a high-definition camera and an AI to acquire data in real time, trigger oxygenation, move the net cage and the like; mixed feeding of'basal feed and insect protein ', cross-season crop rotation of floating bed crops and batch harvesting of benthic organisms are performed daily, equipment is maintained regularly, and ecological circulating breeding is achieved.

The invention discloses an underwater feeding device based on marine net cage culture, and belongs to the technical field of net cage culture, the underwater feeding device comprises a culture net cage, a feeding mechanism is installed on the culture net cage, and the feeding mechanism is used for feeding fish schools in the culture net cage. The feed pipe is arranged, so that feed can be conveyed into the upper conveying cylinder through the corrugated pipe, seawater can enter the upper conveying cylinder through the water inlet while the feed enters the upper conveying cylinder, and meanwhile, the water pump works to generate suction force through the conveying pipe; seawater and feed can be conveyed into the lower conveying cylinder from the upper conveying cylinder through the middle conveying cylinder by means of suction force of the conveying pipe, and the feed can enter the feeding pipe while being conveyed and is sprayed into the aquaculture net cage through high-pressure gas sprayed out of the air spraying head for feeding. The feed can be conveniently conveyed into the upper part, the middle part and the lower part of the culture net cage.

The invention relates to the technical field of monopterus albus fry breeding, and discloses a breeding method for improving the survival rate of monopterus albus fries, which comprises the following steps: (1) egg yolk breeding period: placing water hyacinth in a hatching frame, placing an air dispersing stone at the bottom of the frame, keeping a micro-flowing water state, breeding the monopterus albus fries in the hatching frame at 26-28 DEG C for 5-7 days after the monopterus albus fries are hatched out of membranes, after the egg yolk is completely absorbed, the larva fish later-stage cultivation is performed; (2) at the later stage of fry rearing, the fry are fed with zooplankter live bait for 2-3 days in an open mode; feeding the larva fish for domestication feeding for 3-5 days through tubificidae feeding after the larva fish is opened; (3) a cage culture period: firstly replacing the hatching frame with an indoor cage, continuing to feed with tubificidae for 7-10 days, and then transferring the larva fish into an outdoor cage to feed with tubificidae for 3-5 days; (4) a food conversion culture period: performing food conversion on the larva fish by using food conversion baits formed by mixed baits of tubificidae and micro-capsule materials; the feeding rate is 5-10%, and fish diseases are prevented and controlled daily. According to the scheme, the survival rate of ricefield eel fries is effectively increased to 70%, and the economic benefit of breeding is remarkably increased.

The invention relates to the technical field of deep sea culture net cages, in particular to a deep sea culture net cage hovering depth-keeping system which comprises a base, a culture mechanism is mounted on the base and comprises a plurality of stand columns, adjusting mechanisms are mounted on the stand columns respectively, and adsorption mechanisms are mounted on the adjusting mechanisms; through cooperation of the adsorption mechanism and the adjusting mechanism, the net cage is firmly fixed in a culture sea area, through hovering control over the whole net cage, the net cage culture area is within the optimal salmon growth water temperature range all the year round, the marine environment of cold water mass is protected to the maximum extent, and the salmon growth environment is ensured; meanwhile, the net cage has the characteristics of storm resistance and the like, and the problems of summer and overwintering of the salmon bred in the middle latitude are solved more accurately.

The utility model relates to a movable operation and maintenance ship berthing and net cage adding culture system. The method is suitable for the offshore wind power technical field. According to the technical scheme, the device comprises a fan single-pile foundation, a movable rubber ring, a net cage and a concrete frame; the concrete frame is arranged on a seabed around the fan single-pile foundation, the multiple layers of movable rubber rings are arranged at different heights of the fan single-pile foundation in a sleeving mode, and net cages are arranged between the adjacent movable rubber rings and between the movable rubber ring on the lowest layer and the concrete frame respectively. The inner sides of the multiple layers of movable rubber rings are connected through rubber ring inner side supporting beams, the outer sides of the multiple layers of movable rubber rings are connected through rubber ring outer side supporting beams, the net cage is of a flexible telescopic structure, the movable rubber rings, the net cage, the rubber ring outer side supporting beams and the rubber ring inner side supporting beams form a floating system, and the floating system moves up and down along the fan single-pile foundation. And the bottom is fixed on the seabed through a net cage connecting concrete frame.

The artificial breeding method comprises the following steps: parent fish culture: selecting wild cymbidium for cage culture, and feeding culture bait; after the weight of the parent fishes reaches the standard that the weight of the female fishes is larger than 200 g / fish and the weight of the male fishes is larger than 150 g / fish, round fishes which are robust in physique, lively in action, high in stress resistance and free of body surface trauma are selected as the parent fishes, the parent fishes are transferred into the parent fish pond from the net cage, and the proportion of the female parent fishes to the male parent fishes is (2-2.5): 1. According to the method disclosed by the invention, the fortified bait prepared from the iced trash fish, the eel meal, the probiotic, the multivitamins, the fish oil, the vitality-promoting agent and the yeast is used for fortifying the parent fish of the Cymbidium, and a certain dosage of HCG is used for carrying out ripening and spawning induction treatment on the female parent and the male parent, so that the Cymbidium fry can be obtained on a large scale; therefore, the artificial breeding of the cynanchum otophyllum fries is realized, the blank of the artificial breeding technology of the cynanchum otophyllum is filled, a foundation is provided for the large-scale production of the cynanchum otophyllum fries, and the popularization of

The invention relates to the field of aquaculture net cages, in particular to a fry deep-sea aquaculture net cage which comprises a traction machine and a diving support, a barrel-shaped net cage is fixedly arranged at the bottom of the diving support, a cage cover is arranged at the top end of the barrel-shaped net cage, multiple sets of pull ropes are connected to the bottom of the traction machine, and balancing weights are fixedly arranged at the bottoms of the pull ropes. A plurality of positioning assemblies are arranged in the diving support, each pull rope penetrates through the corresponding positioning assembly, a driving motor is fixedly arranged at the top of the box cover, a storage bin is arranged at the bottom of the box cover, the output end of the driving motor is connected with a center shaft, and the bottom end of the center shaft is rotationally matched with the bottom in the cylindrical net cage. A sliding rail for the diving support to adjust the culture depth is formed through the pull rope, the barrel-shaped net cage can be kept stable, meanwhile, the pull rope is locked through the positioning assembly, and adjustment and control over the culture depth of the barrel-shaped net cage are achieved.

The application discloses a marine net cage breeding system and a use method thereof, which comprises a net cage main body, lifting units are arranged on the two sides of the net cage main body, a sinking auxiliary unit is arranged at the bottom of the net cage main body, a breeding dome is further arranged at the top of the net cage main body, a breeding cavity is arranged in the breeding dome, and a monitoring unit is arranged in the breeding cavity; a bait feeding pipe and an air pipe which are communicated with the breeding cavity are connected to the top of the breeding dome, a breeding opening which is directed to the bottom of the net cage main body is formed in the bottom of the breeding dome, the breeding cavity and the inside of the net cage main body are communicated through the breeding opening, a bait frame which is matched with the breeding opening is further arranged in the inside of the net cage main body, and the bait frame is hung on one side of the breeding dome through a bait rope.

The invention relates to the technical field of aquaculture equipment, and discloses an aquaculture cage culture device which comprises a floating ring, a first sliding groove is formed in the bottom of the floating ring, a second sliding groove is formed in the top of the floating ring, and a transverse moving machine is slidably connected to the inner wall of the second sliding groove. A sliding mechanism and a cleaning mechanism are arranged in the equipment, when the outer wall of the breeding net needs to be cleaned, a power source of a transverse moving machine and a motor is switched on, the transverse moving machine slowly slides along the inner wall of a second sliding groove at the moment, and in addition, the motor drives a first gear to rotate through a driving rod; a first gear drives a square column, a sliding ring and a second cylinder to rotate reversely through a second gear, at the moment, the first cylinder and the second cylinder clamp and roll the culture net, most of larvae on the culture net are physically rolled, and attachment of barnacle marine organisms to the culture net is reduced.

The invention discloses a fish and shellfish symbiosis seaborne net cage culture system and method, and relates to the technical field of aquaculture, and the method comprises the following steps: arranging a culture net cage in an offshore sea area; fish fries are put into a surrounding net, bivalve shellfishes are put into a shellfish culture piece cage, and the shellfish culture piece cage is hung in the culture net cage; feeding bait irregularly, checking the integrity of the shellfish culture cage and the covering condition of attachments regularly, and making a treatment means according to the covering rate; in the later period of culture, the adult fishes with the body length exceeding a preset value are caught irregularly in a fishing mode, and after the culture period is finished, the remaining adult fishes are caught in a concentrated mode by increasing the height of the purse seine; the shellfish culture piece cage is lifted out of the water surface to collect adult shellfish. The culture system disclosed by the invention comprises a culture net cage and shellfish culture piece cages, wherein the shellfish culture piece cages are hung in a purse seine. According to the method, mutualism of marine fishes and bivalve shellfish can be achieved, the resource utilization rate and the culture benefits are improved, and diversified fishery development can be achieved.

The present invention discloses a method for measuring the number of fish schools in deep-sea cage culture, comprising: using an omnidirectional sonar to perform an overall scan of a target cage to convert it into a single cage scanning video; training to obtain a fish school recognition model; obtaining the spatial three-dimensional coordinates of each identified fish in each frame of the sonar scanning image of the target single cage scanning video through the overall scan and the fish school recognition model; setting multiple water layers; performing density clustering processing on the spatial three-dimensional coordinates of each water layer to obtain the water layer clustering estimated fish quantity of each water layer; obtaining a sufficient number of neural network training data; training to obtain a cage total fish quantity fitting model; at the target time, through steps three to five and the cage total fish quantity fitting model, outputting the cage total fish quantity measurement value of the target cage. The present invention can use the omnidirectional sonar to achieve the measurement of the cage total fish quantity in the target cage in a relatively simple and fast data acquisition method, with a high measurement accuracy.

The present invention relates to a cement pool cage culture device for cultivating crayfish broodstock, comprising at least four fixed rods, each of which is equipped with a bottom bracket, a receiving rod, the receiving rod being detachably mounted on the bottom bracket, a cage being mounted on the inner side of the receiving rod, the cage being fixed to the receiving rod via a line segment, and a protective structure, the protective structure being mounted on one side of the receiving rod and being used to prevent natural enemies from causing harm to the crayfish. In a large-scale breeding scenario, a single person can feed the crayfish in the entire pond at the same time, or when the feed stored inside the supply structure is sufficient, the crayfish can be automatically fed without human assistance. The device has a very high degree of automation, requires simple materials, has a particularly low manufacturing cost, and is very practical.

This invention discloses an unmanned cage aquaculture monitoring system, belonging to the field of aquaculture monitoring technology. It addresses the problems of existing nearshore cage aquaculture equipment, such as limited functionality, poor coordination, high reliance on manual labor, and insufficient environmental adaptability during cage deployment. The system includes cage deployment, feeding, storage, a mother machine basic frame, iris feeding, opening and closing doors, undulation, daughter machine retrieval, and daughter machine devices. The mother machine has a circular, layered compartment structure, connected to feed feeding mechanisms at the top and daughter machine operation and retrieval mechanisms at the bottom. The daughter machine devices have an eight-axis drive structure, equipped with environmental monitoring sensors, mechanical claws, and a rotary flushing device, forming a collaborative operation system with the mother machine. This system can achieve automated cage deployment, precise and uniform feed delivery, real-time underwater environmental monitoring, thorough cage cleaning, and underwater waste recovery. It is adaptable to medium and high sea states, has a high degree of intelligence and automation, significantly reduces labor costs, and effectively improves the overall operational efficiency and benefits of nearshore cage aquaculture.

The present invention relates to an ecological cage aquaculture method. The method proposes a cage-based relay aquaculture model for sea cucumbers, sea urchins, and fish, wherein sea cucumbers and sea urchins are mixed in cages during the wintering period, and are combined with green pufferfish aquaculture in the summer. This achieves the comprehensive utilization of cage aquaculture, effectively avoids the risks of aquaculture of sea cucumbers and sea urchins during the high temperature period in summer, saves feeding bait, and, based on the biological characteristics of green pufferfish that feed on mollusks, removes cage attachments in a targeted manner, achieving a biological cycle and biocontrol of pollutants in marine aquaculture, reducing the labor intensity of subsequent cleaning of cage-fouling organisms. The method adopts a "well"-shaped HDPE grid cage to greatly improve the utilization efficiency of the aquaculture device. The method is equipped with an automatic feeding system to solve the problem of difficult and dangerous feeding in large cages. The method feeds bait in a scientific and standardized manner, saving feeding time and manpower input, reducing labor intensity, and greatly improving labor output efficiency.

The invention discloses an unmanned boat-net cage locking device, and relates to the technical field of net cage culture, the unmanned boat-net cage locking device comprises a net cage, an unmanned boat device and a base station, the unmanned boat device comprises a double-body unmanned boat, the upper end of the double-body unmanned boat is provided with a rotating groove, the rotating groove is internally provided with a rotating table, the upper end of the rotating table is rotatably provided with a suspension arm, and the suspension arm is connected with the base station. The front end of the suspension arm is provided with an extendable moving seat, the moving seat is provided with a water quality detection mechanism, and the upper end of the rotary table is provided with a feed feeding mechanism connected with the suspension arm. Through integration of an autonomous sensor, a depth-adjustable water quality detection pod and a suspension arm type feeding mechanism, multi-point three-dimensional water quality detection and fixed-point feed feeding can be realized for a plurality of traditional net cages in an open water area by virtue of a laser radar point cloud precise positioning technology; the stability and high efficiency of operation inside and outside the net cage are guaranteed through the lifting arm depth control and pose calibration function, and the aquaculture management efficiency is greatly improved.

The present application relates to a self-cleaning modular gravity net cage culture system, comprising: a floating assembly comprising a plurality of floating units arranged in a rectangular array; a cage assembly comprising a frame and a float, each frame being arranged on two adjacent floating units, the two ends of the frame being connected to the two ends of the two adjacent floating units, and a plurality of floats being fixedly arranged below the frame; a plurality of oyster cages being hung on the frame for oyster culture; and a cleaning assembly comprising a mounting frame and a cleaning mechanism, the mounting frame being connected to the floating assembly, the mounting frame being capable of swinging relative to the floating assembly, a plurality of the cleaning mechanisms being arranged at intervals along the mounting frame, each cleaning mechanism being capable of contacting at least two adjacent oyster cages, and / or each oyster cage being capable of contacting at least one cleaning mechanism. Compared with the prior art, the cleaning assembly of the present application can clean the oyster cages under the action of water flow and wind waves, thereby extending the time interval for cleaning the oyster cages on water to 3-6 months.

The application discloses a method for typhoon disaster prevention and rapid recovery after disaster in deep-sea net cage culture, which comprises the following steps: before the disaster, an unmanned aerial vehicle is used to take aerial photos of the water surface structure of the net cage by carrying a high-definition camera, and an underwater robot is used to collect underwater images by layer scanning through a sonar, so that structure data and fish school data before the disaster are generated; weak points such as framework, netting and anchor chain are analyzed and repaired and reinforced through three-dimensional modeling, the stocking density is optimized in combination with typhoon information, the risk of facility damage and fish loss is reduced, and after the disaster, the structure data and fish school data are repeated, the degree of framework damage, netting damage, anchor chain breakage and fish escape or death is compared and evaluated by taking the data before the disaster as a reference, and a grading repair scheme and disaster relief plan are generated. Through the cooperation of multiple devices and data fusion, the detection accuracy and evaluation efficiency are improved, the damaged parts are quickly located, and the recovery strategy is optimized, so that an efficient disaster prevention and reduction and rapid recovery solution after disaster is provided for the deep-sea net cage culture.

The present invention discloses a ship-shaped cage system for marine aquaculture, specifically a stepped ship-shaped cage system. A bow system is attached to the flow-facing side of a square frame system, and the two are arranged in a straight line and fixed to each other. The bow system is equipped with a structure that blocks the flow of water passing through the bow system. The square frame system is divided into multiple square frame units. The net system corresponding to each square frame unit encloses an independent square cage aquaculture area, and the depth of all square cage aquaculture areas decreases stepwise from the proximal end to the distal end of the bow system. This invention solves the technical problem of "improving the aquaculture efficiency of ship-shaped cage systems." The system design of the present invention fully considers the turbulence generated by varying flow rates and the fact that the diffusion range of turbulence is proportional to distance. The depth of the square cage aquaculture area is designed to be smaller the farther away from the bow system (where turbulence occurs), thereby minimizing the impact of turbulence diffusion on cage aquaculture.