Shellfish farming device and method for automatically feeding bait

Abstract

The present invention relates to the technical field of shellfish culture, and discloses a shellfish culture device and method for automatically feeding bait, comprising: a feeding module arranged on a floating plate, for feeding bait regularly; a culture body arranged below the floating plate, for culture shellfish; a feeding net, arranged outside the culture body; during feeding time, the feeding net is in a raised state, then the inner area of ​​the feeding net forms a bait delivery area, and the feeding module performs bait feeding; during non-feeding time, the feeding net is in a lowered state, and the feeding module does not work. The feeding module can be used to regularly deliver bait to shellfish, so as to prevent the algae in the culture sea area from being reduced and causing the shellfish to be in a hungry state; and during feeding, under the obstruction of the feeding net, the bait can be prevented from floating away with the water flow when the shellfish does not have time to eat, thereby reducing the waste of bait and ensuring that the shellfish eats enough.

Description

Technical Field

[0001] The present invention relates to the technical field of shellfish culture, and more specifically, to a shellfish culture device and method for automatically feeding bait. Background Art

[0002] Shellfish are generally herbivorous, mainly feeding on algae and organic debris, etc., with a rich food base; generally, shellfish do not need to be fed in shallow seas, and the sea surface for breeding is vast. However, in the breeding sea areas where shellfish are farmed on a large scale, the original algae and other foods cannot meet the edible needs of shellfish, especially when the environment changes, it is easy to cause the number of related algae in the breeding sea area to decrease. In this way, shellfish are prone to being hungry for a long time, which affects the growth of shellfish. Therefore, it is necessary to propose a shellfish breeding device and method for automatically feeding bait to at least partially solve the problems existing in the prior art. Summary of the invention

[0003] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0004] In order to at least partially solve the above problems, the present invention provides a shellfish culture device for automatically feeding bait, comprising: a feeding module arranged on a floating plate, used for feeding bait at regular intervals; a culture body arranged below the floating plate, used for culture shellfish; a feeding net arranged outside the culture body;

[0005] During feeding time, the feeding net is in a raised state, and the inner area of ​​the feeding net forms a bait delivery area, and the feeding module performs the bait feeding work;

[0006] During non-feeding time, the feeding net is in a lowered state and the feeding module does not work.

[0007] Preferably, the feeding net comprises: a net frame that can be extended and retracted up and down, the bottom of which is connected to the bottom of the breeding body; a net body, which is arranged on the outside of the net frame; and a lifting component, which is connected to the top of the net frame.

[0008] Preferably, the grid comprises: a bottom frame connected to the bottom of the breeding body, a top frame connected to the lifting assembly, and a support frame arranged between the bottom frame and the top frame, and the bottom frame and the support frame, as well as the top frame and the support frame are connected by ropes.

[0009] Preferably, the lifting assembly includes: a spiral tube connected to the top of the grid, the upper end of the spiral tube is an inlet for introducing water or gas, and the lower end is an outlet for discharging water or gas; the spiral tube is provided with a first one-way valve near its inlet, and a second one-way valve near its outlet.

[0010] Preferably, the mesh size of the net body is smaller than the size of a single bait.

[0011] Preferably, it further comprises: an algae detection module for detecting the algae concentration in the seawater, and the feeding module sets the feeding amount of bait according to the detected algae concentration and shellfish growth value.

[0012] Preferably, a shellfish culture method for automatically feeding bait adopts the shellfish culture device for automatically feeding bait of the present invention, comprising:

[0013] Obtain the current algae concentration in the aquaculture area and the current growth value of shellfish;

[0014] According to the current growth value of the shellfish, determine whether the current algae concentration meets the current feeding amount of the shellfish;

[0015] If the conditions are met, there is no need to feed the shellfish; if the conditions are not met, there is a need to feed the shellfish.

[0016] Preferably, when the current algae concentration does not meet the current feeding amount of shellfish, it is necessary to feed the shellfish with bait, including:

[0017] Determine the current feed amount based on the current algae concentration and the current growth value of shellfish;

[0018] During the preparation time before the feeding module releases the bait, the feeding net is controlled to be in a raised state so that the inner area of ​​the feeding net forms a bait release area;

[0019] At the feeding time, the feeding module puts the bait into the bait delivery area according to the determined current bait feeding amount;

[0020] At the end of the feeding time, the feeding net is controlled to be in a descending state.

[0021] Preferably, the current feed amount is determined based on the current algae concentration and the current growth value of the shellfish, including:

[0022] Based on the current algae concentration and the reference algae concentration that meets the current shellfish feeding amount, determine the coefficient of influence of algae concentration on the current feed feeding amount:

[0023]

[0024] Among them, μ is the influence coefficient of the algae concentration on the current bait feeding amount, C is the current algae concentration, and C0 is the reference algae concentration that meets the current feeding amount of shellfish;

[0025] Predict the bait feeding amount currently required by the shellfish based on the current growth value of the shellfish to obtain the predicted feeding amount;

[0026] Obtain the current bait feeding amount based on the predicted feeding amount and the influence coefficient of the algae concentration on the current bait feeding amount:

[0027] W = W y *μ

[0028] Among them, W is the current bait feeding amount, and W y is the predicted feeding amount.

[0029] Preferably, predict the bait feeding amount currently required by the shellfish based on the current growth value of the shellfish to obtain the predicted feeding amount, including:

[0030] Determine the standard growth range of the shellfish corresponding to the current culture time based on the current culture time of the shellfish;

[0031] Among them, the standard growth range of the shellfish is [a, b], a is the minimum growth value of the standard growth range, and b is the maximum growth value of the standard growth range;

[0032] Determine the theoretical feeding amount of the shellfish based on the standard growth range of the shellfish;

[0033] Determine the growth deviation coefficient of the shellfish based on the current growth value of the shellfish and the standard growth range of the shellfish:

[0034] If the current growth value M is within the standard growth range [a, b], that is, a ≤ M ≤ b, then the growth deviation coefficient β is:

[0035] β = 0;

[0036] If the current growth value M is not within the standard growth range [a, b], and M > b, then the growth deviation coefficient β is:

[0037]

[0038] If the current growth value M is not within the standard growth range [a, b], and M < a, then the growth deviation coefficient β is:

[0039]

[0040] Obtain the predicted feeding amount based on the theoretical feeding amount of the shellfish and the growth deviation coefficient of the shellfish:

[0041] W y = W0(1 - β)

[0042] Among them, W0 is the theoretical feeding amount.

[0043] Compared with the prior art, the present invention has at least the following beneficial effects:

[0044] The shellfish farming device for automatically feeding bait described in the present invention can regularly feed bait to shellfish through the feeding module to prevent the shellfish from being hungry due to the reduction of algae in the farming sea area; and when feeding, the feeding net can prevent the bait from floating away with the water flow when the shellfish does not have time to eat, thereby reducing the waste of bait and ensuring that the shellfish eat enough.

[0045] The shellfish farming method with automatic feeding of bait described in the present invention can judge whether it is necessary to feed bait to shellfish according to the original algae concentration in the farming sea area, so as to reduce the waste of bait, ensure the food intake of shellfish, and prevent shellfish from being hungry and affecting their growth.

[0046] The shellfish culture device and method for automatically feeding bait described in the present invention, and other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by technicians in this field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0048] Figure 1 This is a schematic diagram of the overall structure of the shellfish culture device for automatically feeding bait according to the present invention;

[0049] Figure 2 It is a structural schematic diagram of a shellfish culture device for automatically feeding bait according to the present invention when the feeding net is in a raised state;

[0050] Figure 3 This is a schematic diagram of the structure of the net frame in the shellfish culture device for automatically feeding bait according to the present invention;

[0051] Figure 4 It is a structural schematic diagram of a shellfish culture device for automatically feeding bait according to the present invention when the feeding net is in a descending state;

[0052] Figure 5 It is a schematic diagram of the connection between the inlet and the water pump and the air pump in the shellfish culture device for automatically feeding bait according to the present invention;

[0053] Figure 6 It is a flow chart of the shellfish culture method of automatically feeding bait according to the present invention;

[0054] Figure 7 This is a flow chart of step S3 in the shellfish culture method of automatically feeding bait according to the present invention;

[0055] Figure 8 This is a flow chart of step S31 in the shellfish culture method of automatically feeding bait according to the present invention;

[0056] Fig. 9 This is a flow chart of step S312 in the shellfish farming method of automatically feeding bait according to the present invention. DETAILED DESCRIPTION

[0057] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0058] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0059] like Figure 1 As shown, the present invention provides a shellfish culture device for automatically feeding bait, comprising: a feeding module 2 arranged on a floating plate 1, for feeding bait regularly; a culture body 3 arranged below the floating plate 1, for culture shellfish; a feeding net arranged outside the culture body 3;

[0060] During feeding time, the feeding net is in a raised state, and the inner area of ​​the feeding net forms a bait delivery area, and the feeding module 2 performs the bait feeding work;

[0061] During non-feeding time, the feeding net is in a descending state and the feeding module 2 does not work.

[0062] In the above technical solution, the feeding module 2 can float on the sea surface through the floating plate 1, and the feeding module 2 can feed bait to the aquaculture body 3 at a set time; during the non-feeding time, the feeding net is in a descending state, that is, the feeding net is located at the bottom of the aquaculture body 3, and the shellfish cultured in the aquaculture body 3 can eat the algae in the aquaculture sea area; during the feeding time, the feeding net is in a raised state, and the aquaculture body 3 is located in the bait delivery area as a whole, and the feeding net is higher than the top of the aquaculture body 3 after being raised, and the feeding module 2 can deliver bait into the bait delivery area;

[0063] Through the above scheme, the feeding module 2 can regularly feed the shellfish with bait to prevent the shellfish from being hungry due to the reduction of algae in the aquaculture area; and when feeding, the feeding net can prevent the bait from floating away with the water flow when the shellfish does not have time to eat, thereby reducing the waste of bait and ensuring that the shellfish eat enough.

[0064] like Figure 1 and Figure 2 As shown, in one embodiment, the feeding net includes: a net frame 4 that can be extended and retracted up and down, and its bottom is connected to the bottom of the breeding body 3; a net body 5, which is surrounded on the outside of the net frame 4; and a lifting component 6, which is connected to the top of the net frame 4.

[0065] The lifting assembly 6 serves as a driving part for driving the feeding net to rise and fall as a whole, and can drive the top of the net frame 4 to rise and fall, while the net body 5 is vertically stretched or contracted to achieve the raising and lowering of the feeding net.

[0066] Furthermore, the mesh size of the net body 5 is smaller than the size of a single bait.

[0067] The net body 5 can be made of a flexible net, the mesh size of which is smaller than the size of a single bait, so as to prevent the bait from floating away with the water flow during feeding, thereby reducing the waste of bait.

[0068] like Figure 1 and Figure 3 Furthermore, the grid 4 includes: a bottom frame 410 connected to the bottom of the breeding body 3, a top frame 420 connected to the lifting assembly 6, and a support frame 430 arranged between the bottom frame 410 and the top frame 420, and the bottom frame 410 and the support frame 430, as well as the top frame 420 and the support frame 430 are connected by ropes 440.

[0069] The bottom frame 410 is connected to the bottom of the breeding body 3, and a mesh plate can also be set on the bottom surface of the bottom frame 410. The outer diameter of the bottom frame 410 is larger than the outer diameter of the lifting assembly 6. When the lifting assembly 6 descends, it can fall onto the bottom frame 410; the bottom frame 410, the top frame 420 and the support frame 430 are all made of rigid materials and are not easily deformed. They can support the net body 5 and improve the stability of the net body 5 in seawater; the rope 440 is a flexible rope body, and the rope 440 and the net body 5 can both be adaptively deformed as the feeding net is raised and lowered.

[0070] like Figure 3 As shown, further, the lifting assembly 6 includes: a spiral tube 610 connected to the top of the frame 4, the upper end of the spiral tube 610 is an inlet 620 for introducing water or gas, and the lower end is an outlet 630 for discharging water or gas; the spiral tube 610 is provided with a first one-way valve 640 near its inlet 620, and a second one-way valve 650 near its outlet 630.

[0071] The inner diameter of the spiral tube 610 is larger than the outer diameter of the floating plate 1, which can ensure that when the spiral tube 610 is raised, the floating plate 1 can be located inside the spiral tube 610, making it easy to put bait into the bait putting area.

[0072] like Figure 2As shown, when the feeding net needs to be raised, gas is introduced into the spiral tube 610 through the inlet 620, and the gas enters the spiral tube 610 after passing through the first one-way valve 640. Then, the water in the spiral tube 610 is discharged from the second one-way valve 650 under the pressure of the introduced gas. As the gas in the spiral tube 610 slowly increases, the water decreases accordingly, and the weight of the spiral tube 610 decreases and rises upward. When the gas filling amount in the spiral tube 610 reaches the first set amount, the feeding net can remain in the raised state to form a bait delivery area.

[0073] like Figure 4 As shown, when the feeding net needs to be lowered, water is introduced into the spiral tube 610 through the inlet 620, and the water enters the spiral tube 610 after passing through the first one-way valve 640. Then, the gas in the spiral tube 610 is discharged from the second one-way valve 650 under the pressure of the introduced water. As the water in the spiral tube 610 slowly increases, the gas decreases accordingly, and the weight of the spiral tube 610 increases and moves downward. When the amount of water filled in the spiral tube 610 reaches the second set amount, the top of the feeding net can be lowered to the position of the base frame 410, and the feeding net remains in a lowered state.

[0074] like Figure 5 As shown, further, the inlet 620 is connected to the water pump 8 and the air pump 9 respectively through the control valve 7;

[0075] When the feeding net needs to be raised, the air pump 9 is connected to the inlet 620 through the control valve 7 to fill the spiral tube 610 with gas; when the feeding net needs to be lowered, the water pump 8 is connected to the inlet 620 through the control valve 7 to fill the spiral tube 610 with water.

[0076] The lifting assembly 6 can be used to lift and lower the entire feeding net, and when filling water or gas, it can be filled slowly, so that the spiral tube 610 is stressed more evenly, ensuring the stability of the feeding net when it is lifted and lowered.

[0077] In one embodiment, it further includes: an algae detection module 10 for detecting the algae concentration in the seawater, and the feeding module 2 sets the feeding amount of bait according to the detected algae concentration and shellfish growth value.

[0078] Among them, the shellfish growth value can represent the growth data of the shellfish feeding amount, such as the size of the shellfish or the weight of the shellfish.

[0079] The specific detection method of algae concentration can be any detection method in the prior art to determine the amount of algae in the aquaculture area.

[0080] The algae detection module 10 can be set on the floating plate 1 or at a certain place in the aquaculture sea area. The algae detection module 10 is communicatively connected with the feeding module 2; the algae detection module 10 can detect the algae concentration in the aquaculture sea area. The higher the algae concentration, the more algae there are, and the amount of bait fed to the shellfish can be reduced, thereby preventing bait waste; the lower the algae concentration, the less algae there are, and the amount of bait fed to the shellfish needs to be increased to ensure the shellfish's food intake.

[0081] like Figure 6 As shown, a shellfish cultivation method for automatically feeding bait, using the shellfish cultivation device for automatically feeding bait of the present invention, comprises:

[0082] S1. Obtain the current algae concentration in the aquaculture area and the current growth value of shellfish;

[0083] S2. judging whether the current algae concentration meets the current feeding amount of the shellfish according to the current growth value of the shellfish;

[0084] S3. If the conditions are met, there is no need to feed the shellfish; if the conditions are not met, there is a need to feed the shellfish.

[0085] The current algae concentration in the aquaculture sea area is obtained by the algae detection module 10, and the current growth value of the shellfish can be obtained by obtaining the size of the shellfish by image detection, or by obtaining the weight of the shellfish by weighing;

[0086] The feeding amount of the shellfish corresponding to the size or weight of the shellfish and the reference algae concentration corresponding to the feeding amount of the shellfish (the algae concentration that satisfies the feeding amount of the shellfish) can be determined based on historical data;

[0087] After obtaining the current algae concentration, compare the current algae concentration with the reference algae concentration. If the current algae concentration is greater than or equal to the reference algae concentration, the current algae concentration meets the current food intake of the shellfish and there is no need to feed the shellfish. If the current algae concentration is less than the reference algae concentration, the current algae concentration does not meet the current food intake of the shellfish and it is necessary to feed the shellfish to ensure the food intake of the shellfish.

[0088] Through the above method, it is possible to judge whether it is necessary to feed shellfish based on the original algae concentration in the aquaculture area, so as to reduce the waste of bait, ensure the food intake of shellfish, and prevent shellfish from becoming hungry and affecting their growth.

[0089] like Figure 7 As shown, in one embodiment, when the current algae concentration does not meet the current feeding amount of shellfish, it is necessary to feed the shellfish with bait, including:

[0090] S31, determining the current feed feeding amount according to the current algae concentration and the current growth value of the shellfish;

[0091] S32, in the preparation time before the feeding module 2 releases the bait, the feeding net is controlled to be in a raised state so that the inner area of ​​the feeding net forms a bait release area;

[0092] S33, at the feeding time, the feeding module 2 puts bait into the bait delivery area according to the determined current bait feeding amount;

[0093] S34. When the feeding time is over, the feeding net is controlled to be in a descending state.

[0094] The current feed amount determined takes into full account the current algae concentration in the aquaculture area and the current growth value of shellfish, which can improve the accuracy of the current feed amount, reduce feed waste, and ensure the food intake of shellfish;

[0095] Controlling the feeding net to be raised during the preparation time can ensure that the bait is in the bait delivery area during feeding, preventing it from drifting away with the water flow, thus preventing bait waste and ensuring effective feeding of shellfish;

[0096] After the feeding time is over, the feeding net is in a lowered state, and the aquaculture body 3 can fully exchange with the seawater.

[0097] Through the above method, the amount of bait fed can be adaptively adjusted to ensure the accuracy of the amount of bait fed, prevent waste of bait, and ensure effective feeding of shellfish.

[0098] like Figure 8 As shown, in one embodiment, the current feed amount is determined based on the current algae concentration and the current growth value of the shellfish, including:

[0099] S311. Determine the influence coefficient of the algae concentration on the current feed amount based on the current algae concentration and the reference algae concentration that satisfies the current shellfish feeding amount:

[0100]

[0101] Among them, μ is the influence coefficient of algae concentration on the current bait feeding amount, C is the current algae concentration, and C0 is the reference algae concentration that meets the current shellfish feeding amount;

[0102] S312, predicting the amount of feed currently required for the shellfish based on the current growth value of the shellfish, and obtaining the predicted feeding amount;

[0103] S313, according to the influence coefficient of the predicted feeding amount and the algae concentration on the current feed feeding amount, the current feed feeding amount is obtained:

[0104] W=W y *μ

[0105] Among them, W is the current feed feeding amount, Wy For predicting the feeding amount.

[0106] In the above method, the current bait feeding amount is not directly predicted. This is because the change in the concentration of algae in seawater is irregular, and it is impossible to accurately predict the concentration of algae. Therefore, when predicting the current bait feeding amount required by shellfish, the algae concentration is not considered. Instead, the influence coefficient of the algae concentration on the current bait feeding amount is obtained based on the current algae concentration, and then the current bait feeding amount is obtained based on the influence coefficient and the predicted feeding amount, improving the accuracy of obtaining the bait feeding amount.

[0107] Such as Fig. 9 As shown, further, based on the current growth value of the shellfish, the current bait feeding amount required by the shellfish is predicted to obtain the predicted feeding amount, including:

[0108] S3121. Determine the standard growth range of the shellfish corresponding to the current breeding time according to the current breeding time of the shellfish;

[0109] Among them, the standard growth range of the shellfish is [a, b], where a is the minimum growth value of the standard growth range and b is the maximum growth value of the standard growth range; for example, when the growth value of the shellfish is the shellfish size, the standard growth range of the shellfish is the standard size range of the shellfish corresponding to the current breeding time;

[0110] S3122. Determine the theoretical feeding amount of the shellfish according to the standard growth range of the shellfish;

[0111] The theoretical feeding amount of the shellfish can be obtained based on empirical data or historical data;

[0112] S3123. Determine the growth deviation coefficient β of the shellfish according to the current growth value of the shellfish and the standard growth range of the shellfish:

[0113] If the current growth value M is within the standard growth range [a, b] of the shellfish, that is, a ≤ M ≤ b, then the growth deviation coefficient is:

[0114] β = 0;

[0115] If the current growth value M is not within the standard growth range [a, b] of the shellfish and M > b, then the growth deviation coefficient is:

[0116]

[0117] If the current growth value M is not within the standard growth range [a, b] of the shellfish and M < a, then the growth deviation coefficient is:

[0118]

[0119] S3124. Obtain the predicted feeding amount according to the theoretical feeding amount of the shellfish and the growth deviation coefficient of the shellfish:

[0120] W y =W0(1-β)

[0121] Among them, W0 is the theoretical feeding amount.

[0122] The cultivation cycle of shellfish (from seedling to maturity) can be divided into multiple cultivation times (time periods); the current growth value of shellfish can be obtained: the growth values ​​(sizes) of multiple shellfish in the cultivation body 3 can be obtained first, and the average value obtained is used as the current growth value (single shellfish); or, the total weight of all shellfish in the cultivation body 3 is obtained, and then divided by the number of all shellfish, and the average weight of a single shellfish is obtained as the current growth value; the theoretical feeding amount of shellfish is the sum of the feeding amounts of all shellfish in the cultivation body 3, that is, the feeding amount of a single shellfish can be obtained according to the standard growth range of shellfish, and then the feeding amount of a single shellfish is multiplied by the number of all shellfish in the cultivation body 3 to obtain the theoretical feeding amount of shellfish;

[0123] Since shellfish are affected by the environment or feeding during their growth process, their growth values ​​will deviate. Deviations in growth values ​​will affect the amount of food consumed by shellfish. Therefore, it is necessary to compare the current growth value with the standard growth range of shellfish to determine the growth deviation coefficient. The predicted feeding amount can be obtained based on the growth deviation coefficient and the theoretical feeding amount to improve the accuracy of the predicted feeding amount.

[0124] Through the above method, the relationship between the current growth value of shellfish and the standard growth range of shellfish corresponding to the current breeding time is fully considered to predict the feeding amount of shellfish and improve the accuracy of the predicted feeding amount.

[0125] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0126] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0127] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A shellfish culture device for automatically feeding bait, characterized in that: include: A feeding module (2) arranged on the floating plate (1) is used for feeding bait at regular intervals; a breeding body (3) arranged below the floating plate (1) is used for breeding shellfish; a feeding net is arranged outside the breeding body (3); During feeding time, the feeding net is in a raised state, and the inner area of ​​the feeding net forms a bait delivery area, and the feeding module (2) performs the bait feeding operation; During non-feeding time, the feeding net is in a lowered state and the feeding module (2) does not work; The feeding net comprises: a net frame (4) that can be extended and retracted upward and downward, the bottom of which is connected to the bottom of the breeding body (3); a net body (5) arranged outside the net frame (4); and a lifting component (6) connected to the top of the net frame (4); The net frame (4) comprises: a bottom frame (410) connected to the bottom of the breeding body (3), a top frame (420) connected to the lifting assembly (6), and a support frame (430) arranged between the bottom frame (410) and the top frame (420), wherein the bottom frame (410) and the support frame (430) as well as the top frame (420) and the support frame (430) are connected via wire ropes (440); The lifting assembly (6) comprises: a spiral tube (610) connected to the top of the grid (4); the upper end of the spiral tube (610) is an inlet (620) for introducing water or gas, and the lower end is an outlet (630) for discharging water or gas; the spiral tube (610) is provided with a first one-way valve (640) near its inlet (620), and a second one-way valve (650) near its outlet (630); It also includes: an algae detection module (10) for detecting the algae concentration in the seawater, and the feeding module (2) sets the feeding amount of bait according to the detected algae concentration and the shellfish growth value.

2. The shellfish culture device for automatically feeding bait according to claim 1, characterized in that: The mesh size of the net body (5) is smaller than the size of a single bait.

3. A shellfish culture method with automatic feeding of bait, using the shellfish culture device with automatic feeding of bait as claimed in any one of claims 1 to 2, characterized in that: include: Obtain the current algae concentration in the aquaculture area and the current growth value of shellfish; According to the current growth value of the shellfish, determine whether the current algae concentration meets the current feeding amount of the shellfish; If the conditions are met, there is no need to feed the shellfish; if the conditions are not met, then there is a need to feed the shellfish.

4. The shellfish culture method of automatically feeding bait according to claim 3, characterized in that: If the current algae concentration does not meet the current shellfish feeding amount, it is necessary to feed the shellfish with bait, including: Determine the current feed amount based on the current algae concentration and the current growth value of shellfish; During the preparation time before the feeding module (2) releases the bait, the feeding net is controlled to be in a raised state so that the inner area of ​​the feeding net forms a bait release area; At the feeding time, the feeding module (2) puts the bait into the bait putting area according to the determined current bait feeding amount; At the end of the feeding time, the feeding net is controlled to be in a descending state.

5. The shellfish culture method with automatic feeding of bait according to claim 4, characterized in that: The current amount of feed to be fed is determined based on the current algae concentration and the current growth value of the shellfish, including: According to the current algae concentration and the reference algae concentration that meets the current shellfish feeding amount, determine the influence coefficient of the algae concentration on the current bait feeding amount; According to the current growth value of the shellfish, the current required feeding amount of the shellfish is predicted to obtain the predicted feeding amount; The current feed amount is obtained based on the predicted feed amount and the influence coefficient of algae concentration on the current feed amount.

6. The shellfish culture method with automatic feeding of bait according to claim 5, characterized in that: According to the current growth value of shellfish, the current required feeding amount of shellfish is predicted to obtain the predicted feeding amount, including: Determine the standard growth range of shellfish corresponding to the current culture time based on the current culture time of shellfish; Determine the theoretical feeding amount for shellfish based on the standard growth range of shellfish; Determine the growth deviation coefficient of shellfish based on the current growth value of shellfish and the standard growth range of shellfish; The predicted feeding amount is obtained based on the theoretical feeding amount of shellfish and the growth deviation coefficient of shellfish.

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