A smart fish-collecting device and method for using a screw-type fish-collecting system

Abstract

This invention provides an intelligent fish-collecting device and method for screw-lifting fish, including a fish-lifting component, a fish-collecting component, and a camera component. Both the fish-lifting component and the camera component are mounted on the fish-collecting component, and the fish-lifting component is also connected to the fish-collecting component. The fish-collecting component includes a fish-collecting box, belt slides mounted on the top of both sides of the fish-collecting box via mounting bases, and a first stepper motor for driving the belt slides. The first stepper motor is mounted on one of the belt slides, and the output shaft of the first stepper motor is connected to the other belt slide via a first synchronous optical axis. Fish-driving plates that can move within the fish-collecting box are provided on both belt slides. This invention has the following advantages: it maintains the optimal fish density within the fish-collecting box, ensuring efficient screw operation and preventing congestion caused by excessive fish density, thus greatly improving the harvesting efficiency.

Description

Technical Field

[0001] This invention relates to the field of aquaculture technology, and in particular to an intelligent fish collection device and method for using a screw to collect fish. Background Technology

[0002] With the continuous expansion of factory farming, manual harvesting is no longer sufficient to meet industry demands. The task of achieving intelligent harvesting of farmed fish is now urgent. Existing harvesting methods typically involve using seine nets and gillnets to capture fish, which are then manually removed from the water. These methods are mainly used for large-scale farming in ponds and reservoirs. Factory farming ponds are smaller and have higher stocking densities, making bottom-discharge harvesting more efficient. A screw mechanism then lifts the farmed fish from the collection box to the sorting station. As the screw operates, the number of fish in the collection box gradually decreases, reducing its efficiency. Therefore, traditional collection methods lead to an increasingly larger fish-to-water ratio due to the continuous output of the screw, making harvesting difficult. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide an intelligent fish collection device and method for screw-lifting fish, which solves the problem in the prior art that the fish-to-water ratio increases due to the continuous output of the screw, making it difficult to catch fish.

[0004] To achieve the above and other related objectives, the present invention provides the following technical solution:

[0005] A smart fish-collecting device for screw-lifting fish includes a fish-lifting component, a fish-collecting component, and a camera component. The fish-lifting component and the camera component are both mounted on the fish-collecting component, and the fish-lifting component is also connected to the fish-collecting component. The fish-collecting component includes a fish-collecting box, belt slides mounted on the top of both sides of the fish-collecting box via mounting bases, and a first stepper motor for driving the belt slides. The first stepper motor is mounted on one of the belt slides, and the output shaft of the first stepper motor is connected to the other belt slide via a first synchronous optical axis. The two belt slides are provided with fish-driving plates that can move within the fish-collecting box. The fish-driving plates divide the fish-collecting box into an adjustable-volume fish-collecting chamber and a water storage chamber.

[0006] In one embodiment of the present invention, the fish-lifting assembly includes a support frame, a fish-lifting tube mounted on the support frame, a screw passing through the fish-lifting tube, and a second stepper motor mounted on the support frame for driving the screw. The fish-lifting tube has a first fish outlet and a first fish inlet. The fish-lifting tube is connected to the fish collection box through the first fish inlet. This technical solution allows the output shaft of the second stepper motor to rotate, thereby driving the screw to rotate. Under the action of the screw, the fish in the fish collection box can be transferred from the fish collection chamber to the sorting table, so that the fish can be lifted out of the water by the screw.

[0007] In one embodiment of the present invention, the two belt slides are connected to the first stepper motor at their opposite ends via a second synchronous optical axis parallel to the first synchronous optical axis. Couplings are installed on both the first and second synchronous optical axes. Belt sliders connected to a fish-driving board are slidably connected to both belt slides. The fish-driving board is located inside the fish-collecting box and is slidably connected to the fish-collecting box.

[0008] In one embodiment of the present invention, the top side of the fish collection box is provided with an anti-jump cover, the side of the fish collection box facing the fish lifting tube is provided with a second fish outlet communicating with the fish collection chamber, the side of the fish collection box opposite the fish lifting tube is provided with a water outlet communicating with the water storage chamber, and the other two sides of the fish collection box are respectively provided with a second fish inlet and a third fish inlet communicating with the fish collection chamber, and the fish collection box is connected to the fish pond through the second fish inlet and the third fish inlet.

[0009] In one embodiment of the present invention, the camera assembly includes a clamp assembly, a telescopic rod mounted on the clamp assembly, and a camera mounted on the telescopic rod. The camera assembly is mounted on a fish collection box via the clamp assembly, and the clamp assembly includes a mounting frame connected to the telescopic rod and a hand-tightening screw threaded through and connected to the mounting frame. A clamping block is provided at the end of the hand-tightening screw facing the telescopic rod. The camera is connected to a microcontroller via a network. In this technical solution, rotating the hand-tightening screw can move the clamping block, causing the clamping block to be tightly clamped onto the fish collection box, thereby enabling the camera assembly to be mounted on the fish collection box, facilitating the installation and removal of the camera assembly.

[0010] A smart fish-collecting method for screw-lifting fish includes the following steps: acquiring a top-view image of the fish swarm in the fish collection box captured by a camera; inputting the top-view image into a fish swarm counting model, and outputting a predicted density map based on the fish swarm counting model; determining the total number of fish based on the predicted density map, and obtaining a pre-set average fish weight and target fish-to-water ratio; and determining the movement amount of the fish-driving board based on the total number of fish, average fish weight, and target fish-to-water ratio.

[0011] A server includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the intelligent fish collection method for screw-lifting fish as described above.

[0012] A computer-readable storage medium storing a computer program that, when executed by a processor, implements the intelligent fish-collecting method for screw-lifting fish as described above.

[0013] In one embodiment of the present invention, before acquiring the top-view image of the fish in the fish collection box captured by the camera, the method includes: acquiring the top-view image of the fish in the fish collection box and forming a dataset; dividing the dataset into three categories: high density, medium density, and low density, and labeling the number of fish; training an initial model using the divided dataset; and obtaining a fish counting model based on the training results. This technical solution achieves the purpose of the fish counting model by training the initial model using the divided dataset and obtaining a fish counting model based on the training results.

[0014] As described above, the intelligent fish-collecting device and method for screw-lifting fish according to the present invention has the following beneficial effects:

[0015] This invention outputs a predicted density map using a fish counting model. A microcontroller then calculates the total number of fish based on this map, and further calculates the movement of the fish-driving board based on the total number of fish, average fish weight, and target fish-to-water ratio. The microcontroller controls the first stepper motor to start working. The rotation of the first stepper motor's output shaft drives the first synchronous optical axis to rotate. Under the action of the first and second synchronous optical axes, the belt in the belt slide rotates, causing the fish-driving board to move within the fish collection box by the amount calculated by the microcontroller. This maintains the optimal fish density within the collection box, ensuring efficient screw operation and preventing congestion caused by excessive fish density that could harm the fish. It solves the problem of the fish-to-water ratio increasing due to continuous screw output, making fish harvesting difficult. Attached Figure Description

[0016] Figure 1 The image shown is a three-dimensional schematic diagram of an intelligent fish-collecting device for screw-lifting fish according to the first embodiment of the present invention.

[0017] Figure 2 The image shown is a top-view perspective of the fish-collecting component in the intelligent fish-collecting device for screw-lifting fish according to the first embodiment of the present invention.

[0018] Figure 3The image shown is a right-side perspective three-dimensional view of the fish-collecting component in the intelligent fish-collecting device for screw-lifting fish according to the first embodiment of the present invention.

[0019] Figure 4 The image shown is a three-dimensional schematic diagram of the camera component in the intelligent fish-collecting device for screw-lifting fish according to the first embodiment of the present invention.

[0020] Figure 5 The flowchart shown is a process diagram of an intelligent fish collection method for screw-lifting fish according to the second embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram showing the overall process of obtaining the movement amount of the fish-driving board in the intelligent fish-collecting method for screw-lifting fish according to the second embodiment of the present invention.

[0022] Figure 7 The diagram shown is an electronic device according to the third embodiment of the present invention.

[0023] Component designation explanation

[0024] 1. Fish lifting assembly; 101. Support frame; 102. Second stepper motor; 103. Fish lifting tube; 104. Screw; 105. First fish outlet; 2. Fish collecting assembly; 201. Fish collecting box; 202. Mounting base; 203. Belt slide; 204. Belt slider; 205. First stepper motor; 206. First synchronous optical axis; 207. Second synchronous optical axis; 208. Coupling; 209. Fish driving plate; 210. Fish collecting chamber; 211. Water storage chamber; 212. Second fish outlet; 213. Second fish inlet; 214. Third fish inlet; 215. Water outlet; 3. Camera assembly; 301. Clamp assembly; 3011. Mounting frame; 3012. Hand screw; 3013. Clamping block; 302. Telescopic rod; 303. Camera; 4. Anti-jump cover. Detailed Implementation

[0025] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. It should be noted that, unless otherwise specified, the following embodiments and features described herein can be combined with each other.

[0026] The first embodiment of the present invention relates to an intelligent fish-collecting device for screw-lifting fish, the structure of which is as follows: Figures 1 to 4As shown: It includes a fish lifting component 1, a fish collecting component 2, and a camera component 3. Both the fish lifting component 1 and the camera component 3 are mounted on the fish collecting component 2, and the fish lifting component 1 is also connected to the fish collecting component 2. The fish lifting component 1 includes a support frame 101, a fish lifting tube 103 mounted on the support frame 101, a screw 104 passing through the fish lifting tube 103, and a second stepper motor 102 mounted on the support frame 101 for driving the screw 104. The fish lifting tube 103 has a first fish outlet 105 and a first fish inlet. The fish lifting tube 103 is connected to the fish collecting box 201 through the first fish inlet. The output shaft of the second stepper motor 102 can drive the screw 104 to rotate. Under the action of the screw 104, the fish in the fish collecting box 201 can be transferred from the fish collecting chamber 210 to the sorting table, so that the fish can be lifted out of the water by the screw 104.

[0027] exist Figure 2 and Figure 3 In this assembly, the fish collecting component 2 includes a fish collecting box 201, belt slides 203 mounted on the top of both sides of the fish collecting box 201 via mounting bases 202, and a first stepper motor 205 for driving the belt slides 203. The first stepper motor 205 is mounted on one of the belt slides 203, and the output shaft of the first stepper motor 205 is connected to the other belt slide 203 via a first synchronous optical shaft 206. The ends of the two belt slides 203 opposite to the first stepper motor 205 are connected via a second synchronous optical shaft 207 parallel to the first synchronous optical shaft 206. Couplings 208 are mounted on both the first and second synchronous optical shafts 206. In the process, a belt is installed inside the belt slide 203. Synchronous pulleys that contact the belt are provided on the output shaft of the first stepper motor 205, the first synchronous optical shaft 206, and the second synchronous optical shaft 207. Fish-driving plates 209 that can move within the fish collection box 201 are provided on the two belt slides 203. The side of the fish-driving plate 209 facing the screw 104 is convex. Belt sliders 204 connected to the fish-driving plates 209 are slidably connected to the two belt slides 203. The fish-driving plates 209 are located inside the fish collection box 201 and are slidably connected to the fish collection box 201. The fish-driving plates 209 divide the fish collection box 201 into a fish collection chamber 210 and a water storage chamber 211 with adjustable volume.

[0028] exist Figures 1 to 3In the fish collection box 201, an anti-jump cover 4 is provided on the top side. The anti-jump cover 4 is made of transparent acrylic and is used to prevent fish from escaping from the fish collection box 201. The side of the fish collection box 201 facing the fish lifting tube 103 has a second fish outlet 212 that communicates with the fish collection chamber 210. The second fish outlet 212 is used to discharge fish from the fish collection box 201. The side of the fish collection box 201 opposite to the fish lifting tube 103 has a water storage chamber 211 that communicates with the water storage chamber 211. The water outlet 215 is connected to the water storage tank 211 for storing excess water, and the water outlet 215 is used to discharge excess water. On the other two sides of the fish collection box 201, there are a second fish inlet 213 and a third fish inlet 214 that are connected to the fish collection tank 210. The fish collection box 201 is connected to the fish pond through the second fish inlet 213 and the third fish inlet 214, which can allow fish from the fish pond to enter the fish collection box 201.

[0029] exist Figure 4 The camera assembly 3 includes a clamp assembly 301, a telescopic rod 302 mounted on the clamp assembly 301, and a camera 303 mounted on the telescopic rod 302. The top-view camera 303 is used to capture top-view images of the fish in the fish collection box 201. The camera assembly 3 is mounted on the fish collection box 201 via the clamp assembly 301. The clamp assembly 301 includes a mounting frame 3011 connected to the telescopic rod 302 and a hand screw 3012 that passes through the mounting frame 3011 and is threadedly connected to the mounting frame 3011. The end of the hand screw 3012 facing the telescopic rod 302 has a clamping block 3013. The camera 303 is connected to a microcontroller via a network. By rotating the hand screw 3012, the clamping block 3013 can be moved, so that the clamping block 3013 is tightly clamped on the fish collection box 201, thereby enabling the camera assembly 3 to be mounted on the fish collection box 201, which facilitates the installation and removal of the camera assembly 3.

[0030] Furthermore, when removing fish from the fishpond, the fish are first transported to the fish collection box 201 via a bottom discharge method. Then, the output shaft of the second stepper motor 102 rotates, driving the screw 104 to rotate. Under the action of the screw 104, the fish in the fish collection box 201 are transferred from the fish collection bin 210 to the sorting table. At the same time, the microcontroller calculates the movement of the fish-driving board 209 based on the top-view image of the fish in the fish collection box 201 captured by the camera 303, and then sends the control command to the first step. When the first stepper motor 205 receives a control command, its output shaft rotates, causing the first synchronous optical shaft 206 to rotate. Under the action of the rotation of the first synchronous optical shaft 206 and the second synchronous optical shaft 207, the belt in the belt slide 203 can rotate, thereby causing the belt slider 204 to move on the belt slide 203. This allows the fish-driving plate 209 to move within the fish collection box 201 by the amount of movement calculated by the microcontroller, thus maintaining the fish density in the fish collection chamber 210 at the optimal level.

[0031] The second embodiment of the present invention relates to an intelligent fish-collecting method for screw-lifting fish, the process of which is as follows: Figure 5 As shown, the details are as follows:

[0032] Step 101: Collect a top-down view of the fish in the fish collection box 201 and form a dataset. Divide the dataset into three categories: high density, medium density, and low density, and label the number of fish.

[0033] Step 102: Train the initial model using the divided dataset, and obtain the fish counting model based on the training results.

[0034] In practical applications, camera 303 is first used to collect top-down images of the fish in fish collection box 201. Then, the dataset is divided into three categories: high density (greater than 200 kg / m3), medium density (150-30 kg / m3), and low density (less than 30 kg / m3), and the number of fish is labeled. A total of 3600 images are sampled. Gaussian and salt-and-pepper noise are added to improve the image generalization ability and expand the images to 7800. Finally, the samples are divided into training set, validation set, and test set in a 6:2:2 ratio and input into the initial model with VGG16 as the backbone network to obtain the fish counting model with VGG16 as the backbone network.

[0035] Step 103: Obtain a top-down image of the fish in the fish collection box 201 taken by camera 303.

[0036] Step 104: Input the top view image into the fish counting model, and output the predicted density map based on the fish counting model.

[0037] Step 105: Determine the total number of fish based on the predicted density map, and obtain the pre-set average fish weight and target fish-to-water ratio.

[0038] Step 106: Determine the movement of the fish-driving board 209 based on the total number of fish, the average weight of the fish, and the target fish-to-water ratio.

[0039] In practical applications, after training and obtaining the fish counting model, a top-down image of the fish in the fish collection box 201, captured by camera 303, is input into the model. Image feature extraction is then performed to expand the receptive field and restore image resolution, ultimately generating a predicted density map and integrating the total number of fish. The total number of fish serves as a feedback signal for adjusting the fish-to-water ratio. The user sets the average fish weight and a target fish-to-water ratio, which is the total weight of the fish divided by the volume of water. The total number of fish is multiplied by the average fish weight to obtain the total weight of the fish. The microcontroller calculates the convex volume of the fish-driving board 209 (the volume of the fish collection chamber 210) in real time based on the user-set target fish-to-water ratio and total fish weight, and adjusts the movement of the fish-driving board 209. As the fish are continuously lifted out of the collection trough, the fish-driving board 209 continuously adjusts until the fish lifting operation is completed. The overall process can be found in [reference needed]. Figure 6 .

[0040] The third embodiment of the present invention relates to a server; please refer to [link / reference]. Figure 7 ,include:

[0041] At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the above-described intelligent fish collection method for screw-lifting fish.

[0042] The memory and processor are connected via a bus, which can include any number of interconnecting buses and bridges, connecting various circuits of one or more processors and memories. The bus can also connect various other circuits, such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and will not be described further herein. The bus interface provides an interface between the bus and the transceiver. The transceiver can be a single element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by the processor is transmitted over the wireless medium via an antenna, which further receives data and transmits it to the processor.

[0043] The processor manages the bus and general processing, and also provides various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. Memory is used to store data used by the processor during operation.

[0044] The fourth embodiment of the present invention relates to a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method embodiments.

[0045] That is, those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. This program is stored in a storage medium and includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0046] This invention outputs a predicted density map using a fish counting model. The microcontroller then calculates the total number of fish based on the predicted density map, and further calculates the movement of the fish-driving board 209 based on the total number of fish, average fish weight, and target fish-to-water ratio. The microcontroller controls the first stepper motor 205 to start working. The output shaft of the first stepper motor 205 rotates, driving the first synchronous optical shaft 206 to rotate. Under the action of the rotation of the first synchronous optical shaft 206 and the second synchronous optical shaft 207, the belt inside the belt slide 203 rotates, causing the fish-driving board 209 to move within the fish collection box 2. The movement amount calculated by the microcontroller within the 01 movement chamber ensures that the fish density within the fish collection chamber 210 remains optimal. This not only guarantees the efficient operation of the screw 104 but also prevents congestion caused by excessive fish density, which could harm the fish. It solves the problem that the fish-to-water ratio increases due to the continuous output of the screw 104, making it difficult to harvest the fish. Compared with traditional fish collection methods, this invention can achieve a constant fish-to-water ratio, thereby greatly improving harvesting efficiency and has significant promotional value in the harvesting of fish in factory-scale aquaculture.

[0047] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. All equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this invention should still be covered by the claims of this invention.

Claims

1. An intelligent fish-collecting device for screw-lifting fish, characterized in that: It includes a fish-lifting component (1), a fish-collecting component (2), and a camera component (3). The fish-lifting component (1) and the camera component (3) are both installed on the fish-collecting component (2), and the fish-lifting component (1) is also connected to the fish-collecting component (2). The fish collection assembly (2) includes a fish collection box (201), belt slides (203) mounted on the top of both sides of the fish collection box (201) via mounting bases (202), and a first stepper motor (205) for driving the belt slides (203). The first stepper motor (205) is mounted on one of the belt slides (203), and the output shaft of the first stepper motor (205) is connected to the other belt slide (203) via a first synchronous optical axis (206). The two belt slides (203) are provided with fish-driving plates (209) that can move inside the fish collection box (201). The fish-driving plates (209) divide the fish collection box (201) into a fish collection chamber (210) and a water storage chamber (211) with adjustable volume. The camera component (3) acquires a top-view image of the fish in the fish collection box (201); the top-view image is input into the fish counting model, and a predicted density map is output according to the fish counting model; the total number of fish is determined according to the predicted density map, and the pre-set average fish weight and target fish-to-water ratio are obtained; the movement of the fish-driving board (209) is determined according to the total number of fish, average fish weight and target fish-to-water ratio.

2. The intelligent fish-collecting device for screw-lifting fish according to claim 1, characterized in that: The fish-lifting assembly (1) includes a support frame (101), a fish-lifting tube (103) mounted on the support frame (101), a screw (104) passing through the fish-lifting tube (103), and a second stepper motor (102) mounted on the support frame (101) for driving the screw (104). The fish-lifting tube (103) has a first fish outlet (105) and a first fish inlet. The fish-lifting tube (103) is connected to the fish collection box (201) through the first fish inlet.

3. The intelligent fish-collecting device for screw-lifting fish according to claim 1, characterized in that: The two belt slides (203) are connected to the first step motor (205) at their opposite ends via a second synchronous optical axis (207) parallel to the first synchronous optical axis (206). Couplings (208) are installed on both the first and second synchronous optical axes (207). Belt slides (204) connected to a fish-driving board (209) are slidably connected to both belt slides (203). The fish-driving board (209) is located inside the fish collection box (201) and is slidably connected to the fish collection box (201).

4. The intelligent fish-collecting device for screw-lifting fish according to claim 2, characterized in that: The top side of the fish collection box (201) is provided with an anti-jump cover plate (4). The side of the fish collection box (201) facing the fish lifting tube (103) is provided with a second fish outlet (212) connected to the fish collection chamber (210). The side of the fish collection box (201) opposite to the fish lifting tube (103) is provided with a water outlet (215) connected to the water storage chamber (211). The other two sides of the fish collection box (201) are respectively provided with a second fish inlet (213) and a third fish inlet (214) connected to the fish collection chamber (210). The fish collection box (201) is connected to the fish pond through the second fish inlet (213) and the third fish inlet (214).

5. The intelligent fish-collecting device for screw-lifting fish according to claim 1, characterized in that: The camera assembly (3) includes a clamp assembly (301), a telescopic rod (302) mounted on the clamp assembly (301), and a camera (303) mounted on the telescopic rod (302). The camera assembly (3) is mounted on the fish collection box (201) via the clamp assembly (301). The clamp assembly (301) includes a mounting frame (3011) connected to the telescopic rod (302) and a hand screw (3012) threaded through the mounting frame (3011) and connected to the mounting frame (3011). The end of the hand screw (3012) facing the telescopic rod (302) is provided with a clamping block (3013). The camera (303) is connected to the microcontroller via a network.

6. The intelligent fish-collecting device for screw-lifting fish according to claim 1, characterized in that: Before acquiring a top-view image of the fish in the fish collection box (201) via the camera assembly (3), the method further includes: A top-view image of the fish in the fish collection box (201) was collected and a dataset was constructed. The dataset was divided into three categories: high density, medium density and low density, and the number of fish was labeled. The initial model is trained using the pre-divided dataset, and the fish counting model is obtained based on the training results.

Images