Underwater sorting method and equipment for adult fish

Abstract

The invention discloses an underwater sorting method and device for adult fish, and the method comprises the steps that fish entering a net cage is scanned through a scanning device arranged at an inlet of the net cage so as to determine basic information of the fish, and the basic information comprises the type and the body type; a gate signal is determined according to the basic information, and a fishway gate arranged in the net cage is controlled according to the gate signal, so that fishes enter a fishway corresponding to the gate signal; a stimulation signal is determined, a stimulation device arranged in the net cage is started according to the stimulation signal, and the fishes in the fishway are stimulated through the stimulation device, so that the fishes are separated from the fishway. The basic information of the fishes is rapidly obtained through the scanning device, the types and the body types of the fishes are rapidly judged according to the preset sorting scheme, and efficient sorting is achieved. The device has the advantages of being efficient, flexible, intelligent, environment-friendly, energy-saving, compact in structure and the like, is suitable for adult fish sorting operation of various aquaculture farms, and is beneficial to improving the automation level and the production efficiency of aquaculture.

Description

Technical Field

[0001] The present application relates to the field of aquaculture technology, and in particular to an underwater sorting method and equipment for adult fish. Background Art

[0002] The current underwater fishing method on the market is to fix one side of a whole net to one side of the inside of the cage, and the other side moves along the inside of the cage from the fixed point. This process requires the cooperation of multiple operators, and a small ship needs to be hoisted in the cage for auxiliary operations. As the area surrounded by the vertical net decreases, the various fish in the cage also gather together, and finally surround it to a very small area, and then the staff on the boat use a scoop net to catch them. In this process, the purse seine cannot effectively carry out a completely closed enclosure, resulting in many fish slipping through the net, and multiple enclosures are required, which reduces the fishing efficiency. In addition, multiple enclosures may cause fish injuries or deaths, increase losses, and non-target fish may also be caught by mistake, affecting the breeding benefits. Summary of the invention

[0003] In order to solve the above problems, the present application proposes an underwater sorting method for adult fish, comprising: scanning the fish entering the net cage by a scanning device arranged at the entrance of the net cage to determine the basic information of the fish, the basic information including species and body shape; determining a gate signal according to the basic information, and controlling the fishway gate arranged in the net cage according to the gate signal, so that the fish enters the fishway corresponding to the gate signal; determining a stimulation signal, and activating the stimulation device arranged in the net cage according to the stimulation signal, so as to stimulate the fish in the fishway through the stimulation device, thereby causing the fish to leave the fishway.

[0004] In one example, the method further includes: determining a plurality of pre-set target categories, and determining a sorting scheme for the cage according to the plurality of target categories, the sorting scheme including an import caliber, an export caliber, a category identification, an induction program, a stimulation signal, and a storage scheme.

[0005] In one example, the method further includes: setting an inlet caliber of the net cage according to the sorting scheme so that fish corresponding to the multiple target species enter the net cage, and setting an outlet caliber of the net cage according to the sorting scheme so that the fish leave the fishway.

[0006] In one example, setting the outlet caliber of the net cage according to the sorting scheme specifically includes: determining multiple target body sizes corresponding to the multiple target species, and sorting the multiple target body sizes to determine the maximum target body size, and determining a first outlet caliber according to the maximum target body size, the first outlet caliber being smaller than the inlet caliber; setting a first outlet of the fishway gate according to the first outlet caliber so that fish corresponding to the multiple target species enter the first fishway through the first outlet, and then enter a pre-set fish storage box through the first fishway; determining a second outlet caliber, the second outlet caliber being equal to the inlet caliber; setting a second outlet of the fishway gate according to the second outlet caliber so that fish that do not belong to any of the multiple target species enter the second fishway through the second outlet, and then leave the net cage through the second fishway.

[0007] In one example, determining a gate signal based on the basic information specifically includes: determining whether the species of the fish is a target species based on the basic information; if the species is a non-target species, determining a second gate signal to open the second exit of the gate according to the second gate signal; if the species is a target species, determining the body size of the fish based on the basic information; comparing the body size with the target body size corresponding to the species; if the body size is greater than or equal to the target body size, determining a first gate signal to open the first exit of the gate according to the first gate signal; if the body size is smaller than the target body size, determining a second gate signal to open the second exit of the gate according to the second gate signal.

[0008] In one example, the stimulation device provided in the net cage is activated according to the stimulation signal, specifically including: determining a plurality of corresponding stimulation signals according to a plurality of pre-set target species, and preloading the stimulation device provided in the first fishway according to the plurality of stimulation signals, the plurality of stimulation signals including any one or more of the following: light signals, electrical signals, sound wave signals; determining the species corresponding to the fish passing through the first outlet, and determining the stimulation signal corresponding to the species, and activating the first stimulation device in the first fishway according to the stimulation signal corresponding to the species; determining a pre-set comprehensive stimulation signal, and activating the second stimulation device in the second fishway according to the comprehensive stimulation signal.

[0009] In one example, after scanning the fish entering the cage by a scanning device set at the entrance of the cage, the method also includes: determining the scanning information of the fish, and determining the identification information of the fish according to the scanning information; determining multiple species identifications corresponding to the multiple target species, and comparing the identification information with multiple pre-set species identifications; if the identification information is the same as any one of the multiple species identifications, the fish is the target species, and the body shape of the fish is determined by the scanning information, and the target species and the body shape are recorded as the basic information of the fish; if the identification information is different from any one of the multiple species identifications, the fish is a non-target species, and the non-target species is recorded as the basic information of the fish.

[0010] In one example, the method further includes: determining multiple induction methods according to the multiple target species, the induction methods including any one or more of the following: light induction, sound wave induction, bait induction, pheromone induction, and chemical induction; and starting the induction device arranged at the entrance of the cage according to the multiple induction methods.

[0011] On the other hand, the present application also proposes an underwater sorting device for adult fish, which is applied to the method according to any one of claims 1 to 8, and the device comprises: a net cage, comprising an inlet fishway and an outlet fishway, the outlet fishway comprising a first fishway and a second fishway, a fishway gate is provided at the non-inlet of the inlet fishway, the fishway gate comprises a first outlet and a second outlet, the first outlet is connected to the first fishway, and the second outlet is connected to the second fishway; a fish storage box, comprising an inlet and an opening, the inlet is arranged above the fish storage box, the inlet is connected to the first fishway so that fish passing through the first fishway enter the fish storage box, the outlet is arranged below the fish storage box, the outlet is used for releasing the fish, the outer shell of the fish storage box is made of impermeable material, and water is stored inside the fish storage box.

[0012] In one example, it also includes: an induction device, arranged at the entrance of the import fishway, the induction device is used to induce the fish to enter the import fishway; a scanning device, arranged at the entrance of the import fishway, the scanning device is used to scan the fish to determine the basic information of the fish; the fishway gate is used to judge the fish to determine whether the fish is a target fish, if the fish is a target fish, the first exit is opened, if the fish is a non-target fish, the second exit is opened; a stimulation device, including a first stimulation device and a second stimulation device, the first stimulation device is arranged in the first fishway, and the second stimulation device is arranged in the second fishway.

[0013] The present application uses a scanning device to quickly obtain basic information about fish, and quickly determines the type and size of fish according to a preset sorting scheme to achieve efficient sorting. The precise control of the gate signal and the stimulation signal ensures that the fish are accurately guided to the corresponding fishway and leave. The present application supports the sorting of multiple target species. By adjusting the parameters in the sorting scheme, it can flexibly adapt to fish of different types and sizes, thereby improving the versatility and practicality of the equipment. The equipment of the present application integrates intelligent control, which can automatically record fish information, analyze sorting data, and provide data support for subsequent breeding and management. At the same time, through the preset induction program and stimulation signal, intelligent induction and stimulation of fish are realized. The overall structure of the equipment of the present application is compact, the footprint is small, and it is easy to install and maintain. At the same time, the design of the fish storage box enables the fish to remain in an underwater environment during the sorting process, avoiding discomfort to the fish caused by environmental changes. The present application has the advantages of high efficiency, flexibility, intelligence, environmental protection, energy saving and compact structure, and is suitable for the sorting operation of adult fish in various aquaculture farms, which helps to improve the automation level and production efficiency of aquaculture. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 This is a schematic diagram of a process of an underwater sorting method for adult fish in an embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of an underwater sorting device for adult fish in an embodiment of the present application;

[0017] Among them, 100 are net cages, 101 are fish storage boxes, 102 are import fishways, 103 are the first fishways, 104 are the second fishways, and 105 are fishway gates. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0019] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0020] like Figure 1As shown, in order to solve the above problems, an embodiment of the present application provides an underwater sorting method for adult fish, the method comprising:

[0021] S101. Scanning fish entering the net cage by a scanning device disposed at the entrance of the net cage to determine basic information of the fish, wherein the basic information includes species and body shape.

[0022] Under the action of the fish attracting device inside the equipment, when the fish enters the waterway, the type and size of the fish are detected. If the fish is the target fish and the size reaches the fishing specification, the gate of the exit fishway will be changed to attract the fish to the fish storage space below; if the fish is not the target fish, the fish will return to the breeding cage through the open fishway to continue growing. Determine multiple pre-set target species, and determine the sorting plan of the cage according to the multiple target species. The sorting plan includes the inlet caliber, outlet caliber, species identification, induction program, stimulation signal, and storage plan.

[0023] Using multi-beam high-resolution imaging sonar technology, combined with underwater high-definition camera units, the fish entering the cage are scanned to capture clear images of the fish, and then the species of the fish are determined through image recognition technology. By analyzing and processing the pixels in the image, useful identification information is extracted to achieve recognition of objects in the image. In fish recognition, these identifications may include the shape, color, texture, etc. of the fish. The fish images are preprocessed to improve image quality and recognition rate. This includes steps such as denoising, graying, and scaling to ensure that the image is clear and suitable for subsequent feature extraction. Useful features are extracted from fish images using feature extractors, such as convolutional layers in convolutional neural networks. The extracted features are compared with all pre-set fish species identifications through classifiers, such as support vector machines, neural networks, etc., to determine the identification information of the fish. Convolutional neural networks (CNNs) extract features from images through convolution operations. Each convolutional layer learns more advanced features, such as edges, colors, shapes, textures, etc. The pooling layer follows the convolutional layer to reduce the dimension of the feature map and reduce the amount of calculation. At the same time, the pooling layer also helps to improve the robustness of the model, that is, it is insensitive to small changes in the image. In the last few layers of CNN, a fully connected layer is used to integrate the previously extracted features and output the probability of each category. Through a large amount of training data and back-propagation algorithms, CNN can continuously adjust its parameters to improve the accuracy of recognition.

[0024] Acoustic sensors are used to capture the sound signals generated by fish when they swim. These signals contain information about the fish's body shape, swimming speed, etc., and the length, thickness, width, etc. of the fish are measured. By using machine learning algorithms to analyze these acoustic signals and compare them with samples in the database, the size of the fish can be inferred. Various sensors, such as temperature sensors, pH sensors, dissolved oxygen sensors, etc., are integrated into the scanning device to monitor the water environment parameters in the cage. Although these parameters are not directly used to determine the type and size of fish, they can provide a basis for breeding decisions, thereby indirectly affecting the growth and health of fish.

[0025] In one embodiment, information that can identify the fish is extracted from the scanning information, such as the fish's head identification, scale identification, fin identification, tail identification, shape identification, etc. The identification information is the key to confirming the identity of the fish. The species identifications of multiple target fish are stored in advance. If the identification information of the fish is the same as any target species identification, the fish is determined to be a target species, and the body shape of the fish, such as length, weight, etc., is determined based on the scanning information, and the target species and body shape are recorded as the basic information of the fish. If the identification information of the fish is different from all target species identifications, the fish is determined to be a non-target species. The non-target species is recorded as the basic information of the fish for subsequent processing or analysis.

[0026] In one embodiment, according to the sorting scheme, the inlet caliber of the cage is set to allow multiple target species of fish to enter. The determination of this caliber needs to be based on a comprehensive consideration of factors such as the body shape, swimming habits, etc. of these target species of fish. According to the sorting scheme, it is determined which species of fish are target species. The design of this caliber needs to take into account the average body shape and swimming ability of the target fish, and then adjust the size, shape or other characteristics of the inlet caliber of the cage to ensure that these target species of fish can enter smoothly.

[0027] In one embodiment, multiple corresponding induction methods are determined according to multiple pre-set target species. These induction methods may include any one or more of light induction, sound wave induction, bait induction, biological pheromone induction and chemical induction. The selection of the induction method should be based on the behavioral characteristics, preferences and sorting requirements of the target fish. Induction devices are set at the entrance of the net cage, and these devices can emit signals or substances corresponding to the above-mentioned determined induction methods. For example, the light induction device can emit light of a specific frequency or color, the sound wave induction device can emit sound waves of a specific frequency, the bait induction may involve the release of food particles that fish like, the biological pheromone induction uses chemical communication substances between fish, and the chemical induction may involve the use of specific chemicals to attract fish. Once the induction method is determined and the corresponding induction device is configured, these devices can be started according to actual needs. The timing of the start may be determined according to the activity pattern of the fish, the water flow conditions or the sorting plan. In the long-term fishing and sorting process, the induction effect needs to be evaluated regularly. This is achieved by observing the number, type and behavioral response of fish entering the net cage. If the induction effect is not good, it may be necessary to adjust the induction method or device settings, such as changing the intensity, frequency or color of the light, adjusting the frequency or intensity of the sound waves, changing the bait type or concentration, adjusting the type and release amount of biological pheromones or chemicals, etc.

[0028] S102, determining a gate signal according to the basic information, and controlling a fishway gate provided in the cage according to the gate signal, so that the fish enters the fishway corresponding to the gate signal.

[0029] In one embodiment, it is determined whether the species of the fish is a target species based on the previously collected basic information of the fish. If the species of the fish is determined to be a non-target species, a second gate signal will be generated, which will be used to open the second exit of the gate to allow non-target species of fish to pass through. If the species of the fish is determined to be a target species, the body size of the fish will be further determined based on the basic information. The determined body size of the fish is compared with the target body size set in advance for the species, and this target body size may be set based on market demand, biological characteristics or other standards. If the body size of the fish is greater than or equal to the target body size, a first gate signal will be generated to open the first exit of the gate, and the corresponding gate exit will be opened to allow the fish to pass. If the body size of the fish is smaller than the target body size, a second gate signal will be generated to open the second exit of the gate.

[0030] In one embodiment, in order to further refine the sorting process, multiple target body sizes corresponding to these target species are first determined, and these body sizes are sorted. The purpose of sorting is to find the largest target body size, which will be used to determine the size of the subsequent exit caliber. According to the largest target body size, the first exit caliber is determined. This caliber needs to be smaller than the inlet caliber to ensure that only fish with a body size less than or equal to the maximum target body size can pass through, and can effectively prevent the target fish from mistakenly entering the first exit. At the same time, the design of the first exit caliber also needs to take into account the swimming habits of the fish and possible crowding conditions to ensure the accuracy and safety of sorting. According to the first exit caliber, the first exit of the fishway gate is set. In this way, after passing through the net cage, the fish corresponding to multiple target species will be able to enter the first fishway through the first exit, and finally enter the pre-set fish storage box.

[0031] In addition to target fish, non-target fish also enter the cage. Although the inlet caliber limits the size of fish, it cannot effectively limit the species, so non-target fish of the same size as the target fish will enter the cage. For non-target fish, a second outlet caliber needs to be set. This caliber is equal to the inlet caliber to ensure that these fish can leave the cage smoothly without being blocked by a small caliber. According to the second outlet caliber, the second outlet of the fishway gate is set. In this way, after passing through the cage, non-target species of fish will be able to enter the second fishway through the second outlet and finally leave the cage area.

[0032] S103, determining a stimulation signal, and activating a stimulation device disposed in the net cage according to the stimulation signal, so as to stimulate the fish in the fishway through the stimulation device, thereby causing the fish to escape from the fishway.

[0033] In one embodiment, multiple corresponding stimulation signals are determined according to multiple pre-set target species. These stimulation signals can be any one or more of optical signals, electrical signals, and acoustic signals. The selection of stimulation signals should be based on the response characteristics of fish to different types of stimulation and the sorting requirements. According to the multiple stimulation signals determined, the stimulation device set in the first fishway is preloaded. So that before the fish enters the fishway, the stimulation device is ready to send the corresponding stimulation signal. The preloading process ensures that the stimulation device can respond quickly and send the correct signal, thereby effectively guiding the fish. When the fish enters the first fishway through the first exit, the type of fish needs to be determined. This can be achieved by image recognition, scanning or other technologies. Once the type of fish is determined, the system will match the stimulation signal corresponding to the type. According to the matched stimulation signal, the first stimulation device in the first fishway is activated. This device will send a corresponding optical, electrical or acoustic signal to guide or drive the fish to swim in a predetermined direction. For fish that do not belong to the target species, the system needs to set a comprehensive stimulation signal. This signal is a combined optical, electrical, and acoustic signal designed to guide these fish to swim to the second fishway. According to the preset comprehensive stimulation signal, the second stimulation device in the second fishway is activated, which also sends out corresponding stimulation signals to ensure that the non-target species of fish can smoothly leave the first fishway and enter the second fishway.

[0034] like Figure 2 As shown, the embodiment of the present application also provides an underwater sorting device for adult fish, comprising:

[0035] The net cage 100 includes an inlet fishway 102 and an outlet fishway. The inlet fishway 102 is the main passage for guiding fishes to enter the net cage. The outlet fishway includes a first fishway 103 and a second fishway 104. The outlet fishway is used to guide the sorted fishes to different directions. A fishway gate 105 is provided at the non-inlet of the inlet fishway 102. The fishway gate 105 is used to control the flow direction of the fishes. The fishway gate 105 includes a first outlet and a second outlet. The first outlet is connected to the first fishway 103 to allow fishes that meet the target conditions to pass through; the second outlet is connected to the second fishway 104 to allow fishes that do not meet the target conditions to pass through. The first fishway 103 is connected to the first outlet of the fishway gate for the output of target fishes; the second fishway 104 is connected to the second outlet of the fishway gate for the output of non-target fishes from the net cage.

[0036] The fish storage box 101 includes an inlet and an opening. The inlet is arranged above the fish storage box and is connected to the first fishway 103 so that the fish passing through the first fishway 103 can enter the fish storage box. The outlet is arranged below the fish storage box and is used to release the fish. The opening may be equipped with a control device so as to be opened or closed as needed. The outer shell of the fish storage box is made of a waterproof material to ensure that the water inside the fish storage box will not leak out and protect the fish from interference from the external environment. A certain amount of water is maintained inside the fish storage box to maintain the living environment of the fish. Parameters such as water quality and temperature may need to be adjusted according to the type and needs of the fish.

[0037] The induction device (not shown in the figure) is arranged at the entrance of the inlet fishway 102. The induction device is used to induce, attract and guide the fish to enter the inlet fishway 102. This can be achieved by emitting light, sound, bait and other signals that fish like.

[0038] The scanning device (not shown) is arranged at the entrance of the inlet fishway 102, usually close to the induction device or integrated with it. The scanning device is used to scan the fish to determine the basic information of the fish, such as species, body shape, etc. Such information is crucial for subsequent judgment and sorting.

[0039] The fishway gate 105 is arranged at the non-entrance end of the inlet fishway 102, and is used to judge the fish, so as to control the flow direction of the fish. According to the information provided by the scanning device, it is judged whether the fish is a target fish. If the fish is a target fish, the first exit is opened to guide it into the first fishway 103; if the fish is a non-target fish, the second exit is opened to guide it into the second fishway 104.

[0040] The stimulation device (not shown in the figure) includes a first stimulation device and a second stimulation device. The first stimulation device is arranged in the first fishway 103 to further stimulate and guide the fishes passing through the first exit to ensure that they can smoothly enter the fish storage box or the subsequent processing flow. This stimulation may include light, sound, electricity and other signals, aiming to enhance the swimming willingness or sense of direction of the fishes. The second stimulation device is arranged in the second fishway 104 to guide the fishes passing through the second exit to ensure that they can smoothly leave the cage area.

[0041] In the 1990s, improvements to a technology could be clearly distinguished as hardware improvements (for example, improvements to the circuit structure of diodes, transistors, switches, etc.) or software improvements (improvements to the method flow). However, with the development of technology, many improvements to the method flow today can be regarded as direct improvements to the hardware circuit structure. Designers almost always obtain the corresponding hardware circuit structure by programming the improved method flow into the hardware circuit. Therefore, it cannot be said that an improvement in a method flow cannot be implemented using a hardware entity module. For example, a programmable logic device (PLD) (such as a field programmable gate array (FPGA)) is such an integrated circuit whose logical function is determined by the user's programming of the device. Designers can "integrate" a digital system on a PLD by programming it themselves, without having to ask a chip manufacturer to design and produce a dedicated integrated circuit chip. Moreover, nowadays, instead of manually making integrated circuit chips, this kind of programming is mostly implemented by "logic compiler" software, which is similar to the software compiler used when developing and writing programs, and the original code before compilation must also be written in a specific programming language, which is called hardware description language (HDL). There is not only one HDL, but many kinds, such as ABEL (Advanced Boolean Expression Language), AHDL (Altera Hardware Description Language), Confluence, CUPL (Cornell University Programming Language), HDCal, JHDL (Java Hardware Description Language), Lava, Lola, MyHDL, PALASM, RHDL (Ruby Hardware Description Language), etc. The most commonly used ones are VHDL (Very-High-Speed ​​Integrated Circuit Hardware Description Language) and Verilog. Those skilled in the art should also know that it is only necessary to program the method flow slightly in the above-mentioned hardware description languages ​​and program it into the integrated circuit, and then it is easy to obtain the hardware circuit that implements the logic method flow.

[0042] The controller can be implemented in any appropriate manner, for example, the controller can take the form of a microprocessor or processor and a computer-readable medium storing a computer-readable program code (such as software or firmware) that can be executed by the (micro)processor, a logic gate, a switch, an application-specific integrated circuit (ASIC), a programmable logic controller, and an embedded microcontroller. Examples of controllers include, but are not limited to, the following microcontrollers: ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20, and Silicone Labs C8051F320. The memory controller can also be implemented as part of the control logic of the memory. Those skilled in the art also know that in addition to implementing the controller in a purely computer-readable program code manner, the controller can be implemented in the form of a logic gate, a switch, an application-specific integrated circuit, a programmable logic controller, and an embedded microcontroller by logically programming the method steps. Therefore, this controller can be considered as a hardware component, and the devices included therein for implementing various functions can also be regarded as structures within the hardware component. Or even, the devices for implementing various functions can be regarded as both software modules for implementing the method and structures within the hardware component.

[0043] The systems, devices, modules or units described in the above embodiments may be implemented by computer chips or entities, or by products with certain functions. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

[0044] For the convenience of description, the above device is described in various units according to their functions. Of course, when implementing this specification, the functions of each unit can be implemented in the same or multiple software and / or hardware.

[0045] Each embodiment in this application is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device and medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0046] The devices and media provided in the embodiments of the present application correspond one-to-one to the methods. Therefore, the devices and media also have similar beneficial technical effects as the corresponding methods. Since the beneficial technical effects of the methods have been described in detail above, the beneficial technical effects of the devices and media will not be repeated here.

[0047] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0048] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0049] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0050] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0051] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0052] The memory may include non-permanent storage in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0053] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0054] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0055] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. An underwater sorting method for adult fish, characterized in that: include: Scanning the fish entering the net cage by a scanning device arranged at the entrance of the net cage to determine the basic information of the fish, wherein the basic information includes the species and the size; Determine a gate signal according to the basic information, and control a fishway gate provided in the cage according to the gate signal, so that the fish enters the fishway corresponding to the gate signal; A stimulation signal is determined, and a stimulation device disposed in the net cage is activated according to the stimulation signal, so as to stimulate the fish in the fishway through the stimulation device, thereby causing the fish to leave the fishway.

2. The method according to claim 1, characterized in that The method further comprises: Determine a plurality of preset target categories, and determine a sorting scheme for the cage according to the plurality of target categories, wherein the sorting scheme includes an inlet caliber, an outlet caliber, a category identifier, an induction program, a stimulation signal, and a storage scheme.

3. The method according to claim 2, characterized in that The method further comprises: The inlet caliber of the net cage is set according to the sorting scheme so that the fish corresponding to the multiple target species can enter the net cage. The outlet caliber of the net cage is set according to the sorting scheme to allow the fish to escape from the fishway.

4. The method according to claim 2, characterized in that: The outlet caliber of the net box is set according to the sorting scheme, specifically including: Determine a plurality of target sizes corresponding to the plurality of target types, and sort the plurality of target sizes to determine a maximum target size, and determine a first outlet caliber according to the maximum target size, wherein the first outlet caliber is smaller than the inlet caliber; The first outlet of the fishway gate is set according to the first outlet caliber, so that the fish corresponding to the plurality of target species enter the first fishway through the first outlet, and then enter the pre-set fish storage box through the first fishway; Determine a second outlet caliber, wherein the second outlet caliber is equal to the inlet caliber; The second outlet of the fishway gate is set according to the second outlet caliber so that fish that do not belong to any of the multiple target species enter the second fishway through the second outlet and then leave the net cage through the second fishway.

5. The method according to claim 4, characterized in that Determining the gate signal according to the basic information specifically includes: Determining whether the fish species is a target species according to the basic information; If the category is a non-target category, determining a second gate signal to open the second exit of the gate according to the second gate signal; If the species is the target species, determining the body size of the fish according to the basic information; comparing the body size with a target body size corresponding to the species; If the body size is greater than or equal to the target body size, determining a first gate signal to open the first exit of the gate according to the first gate signal; If the body size is smaller than the target body size, a second gate signal is determined to open the second exit of the gate according to the second gate signal.

6. The method according to claim 4, characterized in that The stimulation device provided in the cage is activated according to the stimulation signal, specifically comprising: Determine a plurality of corresponding stimulation signals according to a plurality of preset target types, and preload a stimulation device arranged in the first fishway according to the plurality of stimulation signals, wherein the plurality of stimulation signals include any one or more of the following: light signals, electrical signals, and sound wave signals; Determining the species corresponding to the fish passing through the first exit, determining a stimulation signal corresponding to the species, and activating a first stimulation device in the first fishway according to the stimulation signal corresponding to the species; A preset comprehensive stimulation signal is determined, and a second stimulation device in the second fishway is activated according to the comprehensive stimulation signal.

7. The method according to claim 2, characterized in that After scanning the fish entering the net cage by a scanning device arranged at the entrance of the net cage, the method further comprises: Determine the scanning information of the fish, and determine the identification information of the fish according to the scanning information; Determine a plurality of category identifiers corresponding to the plurality of target categories, and compare the identifier information with a plurality of preset category identifiers; If the identification information is the same as any one of the multiple species identifications, the fish is a target species, and the body shape of the fish is determined by the scanning information, and the target species and the body shape are recorded as basic information of the fish; If the identification information is different from any of the multiple species identifications, the fish is a non-target species, and the non-target species is recorded as the basic information of the fish.

8. The method according to claim 2, characterized in that: The method further comprises: Determine multiple induction methods according to the multiple target species, wherein the induction methods include any one or more of the following: light induction, sound wave induction, bait induction, biological pheromone induction, and chemical induction; The induction device arranged at the inlet of the net cage is started according to the multiple induction modes.

9. An underwater sorting device for adult fish, characterized in that: The method as claimed in any one of claims 1 to 8, wherein the device comprises: A net cage, comprising an inlet fishway and an outlet fishway, wherein the outlet fishway comprises a first fishway and a second fishway, a fishway gate is provided at a non-inlet portion of the inlet fishway, the fishway gate comprises a first outlet and a second outlet, the first outlet is connected to the first fishway, and the second outlet is connected to the second fishway; The fish storage box comprises an inlet and an opening, wherein the inlet is arranged above the fish storage box and connected to the first fishway so that fish passing through the first fishway enter the fish storage box, and the outlet is arranged below the fish storage box and is used for releasing the fish, the outer shell of the fish storage box is made of a watertight material, and water is stored inside the fish storage box.

10. The device according to claim 9, characterized in that Also includes: an induction device, arranged at the entrance of the inlet fishway, and used for inducing the fish to enter the inlet fishway; A scanning device, disposed at the entrance of the inlet fishway, and used to scan the fish to determine basic information of the fish; The fishway gate is used to judge the fish to determine whether the fish is a target fish, and if the fish is a target fish, the first exit is opened; if the fish is a non-target fish, the second exit is opened; The stimulation device comprises a first stimulation device and a second stimulation device, wherein the first stimulation device is arranged in the first fishway and the second stimulation device is arranged in the second fishway.

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