Auxiliary fish proofing device and application method thereof

Abstract

The invention discloses a fish body auxiliary proofing device and an application method thereof. The proofing device comprises a bottom frame (1), a monitoring frame (14), a spraying pipeline (9) and a camera (11), a shadowless light supplementing lamp (2) is arranged in the bottom frame, the spraying pipeline is provided with a spraying pipe opening (10), a fish body measuring hole channel (141) is formed in the monitoring frame, the monitoring frame can do tilting motion, and the camera is arranged above the monitoring frame; a fish body is put into the fish body measurement hole channel from the fish inlet hole, the shadowless light supplement lamp is turned on, the camera shoots an image of the fish body, the fish body analysis host receives the image of the fish body, the length and width data of the fish body in the image are measured and analyzed, and the quality of the fish body is obtained. According to the proofing device and the application method thereof, a large batch of living fish bodies can be rapidly, efficiently and accurately detected.

Description

Technical Field

[0001] The invention relates to an aquaculture auxiliary device, in particular to a fish body auxiliary proofing device and an application method thereof. Background Art

[0002] The length and width of eels need to be measured frequently to determine their body mass. However, due to the large amount of mucus on the surface of eels, it is difficult to accurately measure their body parameters when measuring them.

[0003] The common practice in the prior art is to measure dead fish bodies or freeze the fish bodies before measuring. Such a measurement method is very inconvenient to implement and cannot quickly, efficiently and accurately measure large quantities of live eels. Summary of the invention

[0004] The object of the present invention is to provide a fish body auxiliary proofing device and an application method thereof, wherein the proofing device and the application method thereof can perform rapid, efficient and accurate detection on a large number of living fish bodies.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0006] A fish body auxiliary proofing device, the proofing device comprises a bottom frame, a monitoring frame, a spray pipeline and a camera; a shadowless fill light is arranged in the bottom frame; the spray pipeline is provided with a spray pipe outlet, and the spray pipe outlet is located above the monitoring frame; the spray pipe has a water inlet pipe outlet, and the water inlet pipe outlet is connected to a water supply source; the monitoring frame is made of transparent material, and a fish body measurement channel is arranged in the monitoring frame; the monitoring frame has a fish inlet edge and a fish outlet edge, and the fish body measurement channel in the monitoring frame has an opening at one end located at the fish inlet edge, and an opening at the other end located at the fish outlet edge; the monitoring frame is pivotally connected to the bottom frame, and the monitoring frame can be tilted, the monitoring frame can be tilted to the inner side of the bottom frame, and the monitoring frame can be tilted until its fish inlet edge is upward toward the spray pipe outlet; the camera is arranged above the monitoring frame, and the camera lens of the camera faces the monitoring frame.

[0007] Furthermore, the proofing device includes a driving motor, and the driving motor is used to drive the monitoring frame to perform a tilting action.

[0008] Furthermore, the driving motor is a stepping motor.

[0009] Furthermore, the bottom frame has a fish outlet, and the monitoring frame can be tilted so that the fish outlet edge thereof faces downwardly toward the fish outlet.

[0010] Furthermore, frame covers that can be flipped open and closed are provided at the fish inlet side and the fish outlet side of the monitoring frame.

[0011] Furthermore, the proofing device also includes a fish body analysis host, which is provided with a fish body surface parameter monitoring program; the fish body analysis host is used to receive the fish body image, and then run the fish body surface parameter monitoring program, and after measuring and analyzing the body length and body width data of the fish body in the image, the fish body quality is obtained.

[0012] Furthermore, the proofing device includes a fish body measurement database, which is used to store fish body measurement data.

[0013] Furthermore, the fish body is an eel.

[0014] A method for using a fish body auxiliary proofing device, the proofing device is a proofing device as described above; the proofing device includes a driving motor, the driving motor is used to drive a monitoring frame to perform a tilting action; the bottom frame has a fish outlet, and the monitoring frame can be tilted to the point where its fish outlet edge faces downward toward the fish outlet; the fish inlet edge and the fish outlet edge of the monitoring frame are both provided with frame covers that can be flipped open and closed; the proofing device also includes a fish body analysis host, and the fish body analysis host is provided with a fish body surface parameter monitoring program; the method for using the proofing device includes: closing the frame cover at the fish outlet edge of the monitoring frame, proofing Open the frame cover at the fish inlet edge of the monitoring frame, control the monitoring frame to tilt upward so that the fish inlet edge of the monitoring frame faces the spray pipe outlet, control the water supply source to supply water, and spray the water into the fish body measurement channel through the spray pipe outlet. Put the fish body into the fish body measurement channel from the fish inlet outlet, close the frame cover at the fish inlet edge of the monitoring frame, control the monitoring frame to tilt downward so that the monitoring frame is placed in the bottom frame, turn on the shadowless fill light, and use the camera to capture the image of the fish body. The fish body analysis host receives the fish body image, runs the fish body surface parameter monitoring program, measures and analyzes the body length and body width data of the fish body in the image, and obtains the fish body quality.

[0015] Furthermore, the method for using the proofing device also includes: after all detections are completed, opening the frame cover at the fish outlet edge of the monitoring frame, controlling the tilt of the monitoring frame so that the fish outlet edge of the monitoring frame is downward toward the fish outlet, and the fish body in the monitoring frame leaves the proofing device along the fish outlet.

[0016] Compared with the prior art, the proofing device and the application method of the present invention have the following beneficial effects:

[0017] 1) The proofing device and its application method of the present invention integrate high-precision image acquisition, advanced image processing algorithms and a user-friendly interactive interface, providing an innovative solution for non-contact, automated measurement of fish length;

[0018] 2) The proofing device and its application method of the present invention are designed based on machine vision technology. Users only need to put the fish bodies into the monitoring frame one by one to complete the automatic measurement of the fish body length and width data, and estimate the fish body mass through linear regression without touching the fish body, thereby greatly reducing the degree of damage to the fish body during proofing and improving the efficiency of fish body proofing;

[0019] 3) The proofing device and the application method of the present invention can perform rapid, efficient and accurate testing on large quantities of living fish. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 and Figure 2 It is a structural schematic diagram of the fish body auxiliary proofing device of the present invention, Figure 1 and Figure 2 Two proofing devices from different perspectives are shown.

[0021] exist Figure 1 In the middle, the monitoring frame is in a state of tilting upward and away from the bottom frame.

[0022] exist Figure 2 In the middle, the monitoring frame is in a state of tilting downward and entering the bottom frame;

[0023] Figure 3 The present invention is a flowchart of a fish body surface parameter monitoring program used in the proofing device of the present invention. DETAILED DESCRIPTION

[0024] The present invention will be further described below with specific embodiments:

[0025] This embodiment provides a fish body auxiliary proofing device, which can perform rapid, efficient and accurate detection on large quantities of living fish bodies.

[0026] It should be noted that, in this embodiment, the fish body is an eel.

[0027] See also Figure 1 and Figure 2 The proofing device of this embodiment mainly includes a bottom frame 1, a monitoring frame 14, a vertical frame 3 and a spray pipeline 9.

[0028] A fish outlet 17 is provided at one side of the bottom frame 1 , and the fish outlet 17 is actually an outward-turned guide slide plate formed by folding the side of the bottom frame 1 outward.

[0029] A shadowless fill light 2 is arranged in the bottom frame 1 , and the shadowless fill light 2 is used to illuminate the fish body in the monitoring frame 14 . The irradiated light can show the contour image of the fish body after passing through the fish body.

[0030] The monitoring frame 14 is made of transparent material as a whole, and can be specifically made of acrylic or PC material.

[0031] The monitoring frame 14 is provided with a plurality of straight channels, and for the convenience of description, these channels are defined as fish body measurement channels 141. The fish body measurement channels 141 are straight channels with openings at both ends.

[0032] The fish body measurement channels 141 in the monitoring frame 14 are arranged in a row, and the two ends of the fish body measurement channels 141 reach the two sides of the monitoring frame 14 respectively. For the convenience of description, the two sides are defined as "fish inlet side" (as indicated by arrow A1 in the figure) and "fish outlet side" (as indicated by arrow A2 in the figure). In other words, the monitoring frame 14 has a fish inlet side and a fish outlet side, and the fish body measurement channels 141 in the monitoring frame 14 have one end opening located at the fish inlet side, and the other end opening located at the fish outlet side.

[0033] For the sake of convenience, the opening of the fish body measurement channel 141 located at the fish inlet side of the monitoring frame 14 is defined as "fish inlet opening", and the opening of the fish body measurement channel 141 located at the fish outlet side of the monitoring frame 14 is defined as "fish outlet opening".

[0034] The fish outlet edge of the monitoring frame 14 is pivotally connected to the edge of the bottom frame 1 where the fish outlet 17 is located through a pivot mechanism, and based on the pivot mechanism, the monitoring frame 14 can be tilted. The monitoring frame 14 can be tilted downward to the inside of the bottom frame 1, or the monitoring frame 14 can be tilted upward to the point where the fish outlet edge tilts downward toward the fish outlet 17 (the fish inlet edge tilts upward toward the plurality of spray pipe openings 10).

[0035] The proofing device is further provided with a driving motor 7 for driving the monitoring frame 14 to tilt. In this embodiment, the driving motor 7 is a stepping motor, which is conducive to accurately controlling the tilting angle of the monitoring frame 14.

[0036] Frame covers 13 that can be flipped open and closed are provided at the fish inlet and fish outlet edges of the monitoring frame 14, and a servo 12 is configured for the frame cover 13. The frame cover 13 is assembled at the fish inlet and fish outlet edges of the monitoring frame 14 through the servo 12. By controlling the action of the servo 12, the frame cover 13 can be controlled to "flip upward to open the fish inlet or fish outlet of the fish body measuring channel 141, and flip downward to close the fish inlet or fish outlet of the fish body measuring channel 141".

[0037] It should be noted that the numerous spray nozzles 10 correspond one to one with the fish body measurement holes 141 in the monitoring frame 14, and one spray nozzle 10 corresponds to one fish body measurement hole 141. In this embodiment, the number of fish body measurement holes 141 in the monitoring frame 14 is 16, and the number of spray nozzles 10 is also 16.

[0038] The vertical frame 3 is installed based on the bottom frame 1, and the vertical frame 3 spans the top of the bottom frame 1. A camera 11 is arranged on the top of the vertical frame 3, and the camera lens of the camera 11 faces the monitoring frame 14 below. The camera 11 is used to capture the fish body image in the fish body measurement channel 141 of the monitoring frame 14.

[0039] The spray pipe 9 is installed based on the vertical frame 3. A large number of spray pipe openings 10 are arranged on the spray pipe 9. These spray pipe openings 10 are all located above the monitoring frame 14 and face the monitoring frame 14 below. The spray pipe 9 has a water inlet opening 8, which is connected to a pre-set water supply source. In this way, the water supplied by the water supply source passes through the spray pipe 9 and the spray pipe openings 10 and is sprayed onto the monitoring frame 14.

[0040] It should be noted that the water supply source generally refers to equipment or pipelines that can provide water supply.

[0041] It should be noted that, for the proofing device in this embodiment, a computer terminal is also provided. For the convenience of description, the computer terminal is defined as a "fish body analysis host". In this embodiment, the fish body analysis host adopts the prior art Orange Pie AiPRO.

[0042] All electrical devices in the proofing device are controlled by the fish body analysis host, such as the water supply, the drive motor 7, the steering gear 12, the camera 11, etc., are controlled by the fish body analysis host, and are specifically controlled by the fish body surface parameter monitoring program to be mentioned later.

[0043] The fish body analysis host is provided with a fish body surface parameter monitoring program, which is essentially a machine vision processing program. The function of the fish body surface parameter monitoring program is to control the overall operation of the proofing device and measure the length and width of the fish body to obtain data.

[0044] Specifically, the fish body surface parameter monitoring program includes:

[0045] Receive the fish image captured by the camera 11, measure the length and width of the fish in the image, convert the captured image into a grayscale image, eliminate image noise, filter the image background, and perform contour recognition on the filtered fish to obtain the length and width contour lines of the fish, and calculate and print out the length and width data of the fish according to the calibration parameters.

[0046] See also Figure 3 , more specifically,

[0047] The fish body surface parameter monitoring program is provided with a user interface, and the operator sets parameters in the user interface. The fish body surface parameter monitoring program performs pre-processing steps such as graying, noise filtering and edge detection on the eel body image to enhance the image quality and highlight the target features.

[0048] Subsequently, machine learning or deep learning algorithms are used to accurately detect and segment eels and extract their contour features.

[0049] On this basis, the actual length of the eel is calculated through an accurate pixel-to-actual length conversion algorithm, and the result can be used to obtain the predicted weight of the eel through linear regression.

[0050] The final results are fed back to the operator through the user interface.

[0051] The measurement results are not only displayed in real time through an intuitive user interface, but also stored in a database for subsequent analysis. That is, a database is also configured for the proofing device, and the database is defined as a fish body measurement database, which is used to store eel body measurement data, such as body length, body width, weight, etc.

[0052] In addition, the fish body surface parameter monitoring program also provides user interaction functions such as parameter setting, manual correction and report generation to meet the needs of different application scenarios.

[0053] The proofing device of this embodiment uses machine vision technology to extract the contour curve of the eel body, obtain the total length of the eel, and then use regression analysis to obtain the weight of the eel. The user only needs to put the eel head into the monitoring frame 14. Due to the water spray lubrication of the spray nozzle 10 and the tilting effect of the monitoring frame 14, the eel will automatically enter the fish body measurement channel 141 of the monitoring frame 14, and then close the frame cover 13, place the monitoring frame 14 in the bottom frame 1, and put it in a horizontal state. The shadowless fill light 2 at the bottom of the bottom frame 1 provides sufficient lighting, so that the machine vision can achieve a better image processing effect. The proofing device of this embodiment can efficiently complete the eel proofing work, reduce the damage to the eel during operation, and solve the pain point of measuring the length of the living eel.

[0054] In view of the above-mentioned proofing device, this embodiment also provides a method for using the fish body auxiliary proofing device, which is as follows:

[0055] When sampling eels,

[0056] First, close the frame cover 13 at the fish outlet side of the monitoring frame 14, and open the frame cover 13 at the fish inlet side of the monitoring frame 14;

[0057] The monitoring frame 14 is controlled by the driving motor 7 to tilt upward, so that the fish inlet edge of the monitoring frame 14 faces the plurality of spray pipe openings 10 above, and the fish inlet openings of the plurality of fish body measurement channels 141 at the fish inlet edge are aligned one by one with each spray pipe opening 10 (such as Figure 1 shown);

[0058] Then the water supply source is controlled to supply water, and the water is sprayed into the fish body measurement channel 141 through the spray nozzle 10, thereby playing a role of lubrication;

[0059] For each fish body measuring channel 141, put the eel into the fish body measuring channel 141 from the fish inlet port. One eel is put into one fish body measuring channel 141, and 16 eels can be put in one time.

[0060] Then close the frame cover 13 at the fish inlet edge of the monitoring frame 14;

[0061] The monitoring frame 14 is again controlled by the driving motor 7 to tilt downward, so that the monitoring frame 14 is placed in the bottom frame 1 and close to the shadowless fill light 2 (such as Figure 2 shown);

[0062] Then, the shadowless fill light 2 is turned on, and the camera 11 can capture the transparent image of the eel through the monitoring frame 14. The fish body analysis host receives the eel image and then runs the fish body surface parameter monitoring program. After measuring and analyzing the body length and body width data of the fish in the image, the fish body quality result is finally obtained;

[0063] After all the tests are completed, the frame cover 13 at the fish outlet edge of the monitoring frame 14 is opened, and the monitoring frame 14 is controlled to tilt upward again, so that the fish outlet edge of the monitoring frame 14 tilts downward toward the fish outlet 17, and the fish body in the monitoring frame 14 leaves the proofing device along the fish outlet 17.

[0064] The proofing device and the application method of this embodiment have the following advantages:

[0065] The proofing device and its application method of this embodiment integrate high-precision image acquisition, advanced image processing algorithms and a user-friendly interactive interface, providing an innovative solution for the non-contact, automated measurement of eel length.

[0066] The proofing device and its application method of this embodiment are designed based on machine vision technology and are a semi-automatic non-contact auxiliary proofing device for eels. Users only need to put eels one by one into the monitoring frame 14 to complete the automatic measurement of the eel's body length and body width data, and estimate the eel's body mass through linear regression, thereby greatly reducing the degree of damage to the eel during proofing and improving the efficiency of eel proofing.

[0067] The proofing device and the application method of the present embodiment can perform rapid, efficient and accurate testing on large quantities of living fish.

[0068] It should be noted that, based on the basic concept of the proofing device and the application method thereof of the present embodiment, the proofing device and the application method thereof of the present invention can also be used for proofing other long fish, such as eels, loaches, etc.

[0069] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fish body auxiliary proofing device, characterized in that: The proofing device comprises a bottom frame (1), a monitoring frame (14), a spray pipeline (9) and a camera (11); A shadowless fill light (2) is arranged in the bottom frame (1); The spray pipeline (9) is provided with a spray pipe opening (10), and the spray pipe opening (10) is located above the monitoring frame (14); the spray pipeline (9) has a water inlet pipe opening (8), and the water inlet pipe opening (8) is connected to a water supply source; The monitoring frame (14) is made of a transparent material, and a fish body measurement channel (141) is provided in the monitoring frame (14); The monitoring frame (14) has a fish inlet edge and a fish outlet edge, and a fish body measurement channel (141) in the monitoring frame (14) has one end opening located at the fish inlet edge and the other end opening located at the fish outlet edge; The monitoring frame (14) is pivotally connected to the bottom frame (1), and the monitoring frame (14) can be tilted. The monitoring frame (14) can be tilted to the inner side of the bottom frame (1), and the monitoring frame (14) can be tilted to the fish inlet side facing upward toward the spray pipe opening (10); The camera (11) is arranged above the monitoring frame (14), and the camera lens of the camera (11) faces the monitoring frame (14).

2. The fish body auxiliary proofing device according to claim 1, characterized in that: The proofing device comprises a driving motor (7), and the driving motor (7) is used to drive the monitoring frame (14) to perform a tilting action.

3. The fish body auxiliary proofing device according to claim 2, characterized in that: The driving motor (7) is a stepping motor.

4. The fish body auxiliary proofing device according to claim 1, characterized in that: The bottom frame (1) has a fish outlet (17), and the monitoring frame (14) can be tilted so that its fish outlet edge faces downward toward the fish outlet (17).

5. The fish body auxiliary proofing device according to claim 1, characterized in that: The monitoring frame (14) is provided with a frame cover (13) that can be flipped open and closed at the fish inlet side and the fish outlet side.

6. The fish body auxiliary proofing device according to claim 1, characterized in that: The proofing device also includes a fish body analysis host, in which a fish body surface parameter monitoring program is provided; The fish body analysis host is used to receive fish body images and then run a fish body surface parameter monitoring program to obtain the fish body quality after measuring and analyzing the body length and body width data of the fish body in the image.

7. The fish body auxiliary proofing device according to claim 6, characterized in that: The proofing device comprises a fish body measurement database, which is used to store fish body measurement data.

8. The fish body auxiliary proofing device according to claim 1, characterized in that: The fish body is an eel.

9. A method for using a fish body auxiliary proofing device, wherein the proofing device is the proofing device according to claim 1; The proofing device comprises a driving motor (7), and the driving motor (7) is used to drive the monitoring frame (14) to perform a tilting action; The bottom frame (1) has a fish outlet (17), and the monitoring frame (14) can be tilted so that its fish outlet edge is downwardly facing the fish outlet (17); The monitoring frame (14) is provided with a frame cover (13) capable of being flipped open and closed at both the fish inlet side and the fish outlet side; The proofing device also includes a fish body analysis host, in which a fish body surface parameter monitoring program is provided; Features: The method for using the proofing device comprises: The frame cover (13) at the fish outlet side of the monitoring frame (14) is closed, and the frame cover (13) at the fish inlet side of the monitoring frame (14) is opened. The monitoring frame (14) is controlled to tilt upward so that the fish inlet edge of the monitoring frame (14) faces the spray pipe opening (10). The water supply source is controlled to supply water, and the water is sprayed into the fish body measurement channel (141) through the spray pipe opening (10). Put the fish body into the fish body measuring channel (141) through the fish inlet. Close the frame cover (13) at the fish inlet edge of the monitoring frame (14), The monitoring frame (14) is controlled to tilt downward so that the monitoring frame (14) is placed inside the bottom frame (1). The shadowless fill light (2) is turned on, and the camera (11) captures an image of the fish body. The fish body analysis host receives the fish body image, runs a fish body surface parameter monitoring program, measures and analyzes the body length and body width data of the fish body in the image, and obtains the fish body quality.

10. The method for using the fish body auxiliary proofing device according to claim 9, characterized in that: The method for using the proofing device also includes: After all the detections are completed, the frame cover (13) at the fish outlet edge of the monitoring frame (14) is opened, and the monitoring frame (14) is controlled to tilt so that the fish outlet edge of the monitoring frame (14) is downwardly directed toward the fish outlet (17), and the fish body in the monitoring frame (14) leaves the proofing device along the fish outlet (17).

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