Accurate feeding system for factory aquaculture

Abstract

The invention discloses a precise feeding system for factory aquaculture, which comprises a first fishpond (1), and is characterized in that a channel steel-shaped tray (2) is arranged in the first fishpond (1), the tray (2) can slide up and down along the inner wall of the first fishpond (1), the tray (2) is connected with a lifting bracket (3), the lifting bracket (3) is connected with a hoisting mechanism (4), and when bait needs to be thrown into the first fishpond (1), the hoisting mechanism (4) can hoist the first fishpond (1). The hoisting mechanism (4) lifts the tray (2) through the lifting support (3), so that the upper edge of the tray (2) is close to or emerges from the water surface, and after feeding is finished, the hoisting mechanism (4) puts down the tray (2) through the lifting support (3), so that the tray (2) sinks into the bottom of the first fishpond (1). According to the device, the amount of residual feed can be conveniently and clearly observed, and cultured organisms can be conveniently and more accurately fed.

Description

Technical Field

[0001] This invention relates to the field of intelligent aquaculture technology, and in particular to a precision feeding system for factory-scale aquaculture. Background Technology

[0002] Aquaculture, as a traditional industry, has experienced rapid development in modern times and has demonstrated its important role in society, the economy, and people's lives. In the last 30 years, it has seen the fastest growth in global animal food production, with China contributing the most to aquaculture production, accounting for approximately two-thirds of the world's total. However, the facilities used in China's aquaculture industry, especially in factory farming, are still not perfect, with insufficient mechanization and automation. In particular, automated feeding suffers from drawbacks such as overfeeding or underfeeding.

[0003] In the existing technology, there is a lack of a precision feeding system for aquaculture that makes it easy to observe the amount of uneaten feed during feeding and thus rationally control the amount of feed fed.

[0004] Application No. 202210239204.5, Publication No.: CN 114557308 A; Invention Title: Precision Feeding System and Method for Recirculating Aquaculture, comprising the following: Feeding Step: Obtaining a feeding trial amount and feeding according to the feeding trial amount; Residual Feed Analysis Step: Analyzing the water surface image after feeding in real time and determining whether there is residual feed on the water surface based on the water surface image; Aggregation Analysis Step: When there is no residual feed on the water surface, analyzing the water surface image to generate the aggregation degree of the cultured organisms, and generating the feeding amount based on the aggregation degree; The feeding step also includes: feeding according to the feeding amount; Repeating the residual feed analysis step and the aggregation analysis step.

[0005] The aforementioned patent still has some shortcomings in its use. Not all bait and aquatic organisms will float on the water surface. Some bait will sink to the bottom. When the pond is deep, the bait sinks to the bottom and the aquaculture water is not transparent enough, it is impossible to clearly observe the amount of uneaten bait. This leads to deviations in the accuracy of feeding aquatic organisms, and it is easy to overfeed or underfeed.

[0006] In addition, the amount of feed for aquaculture is also related to the size and weight of the cultured organisms. As the cultured organisms gradually increase in size, the amount of feed will also gradually increase. Reasonable adjustment of feed can shorten the culture cycle.

[0007] Therefore, there is a lack of a precision feeding system for factory-scale aquaculture that allows for clear observation of uneaten feed and more precise feeding of farmed organisms. Summary of the Invention

[0008] In view of at least one deficiency of the prior art, the object of the present invention is to provide a precision feeding system for factory aquaculture, which makes it easy to clearly observe the amount of uneaten feed and facilitates more precise feeding of farmed organisms.

[0009] A precision feeding system for factory-scale aquaculture includes a first fish pond (1), in which a channel steel-shaped tray (2) is installed. The tray (2) can slide up and down along the inner wall of the first fish pond (1). The tray (2) is connected to a lifting bracket (3), and the lifting bracket (3) is connected to a winch mechanism (4). When it is necessary to feed the first fish pond (1), the winch mechanism (4) lifts the tray (2) through the lifting bracket (3), so that the upper edge of the tray (2) approaches or floats above the water surface. After feeding is completed, the winch mechanism (4) lowers the tray (2) through the lifting bracket (3), so that the tray (2) sinks to the bottom of the first fish pond (1).

[0010] The hoisting mechanism (4) is equipped with a motor, which is connected to a controller. The controller controls the operation of the hoisting mechanism (4) via the motor. The controller controls the hoisting mechanism (4) to lift or lower the tray (2).

[0011] The lifting bracket (3) is connected to the winch mechanism (4) via the first weighing sensor (5). When it is necessary to weigh the cultured organisms, the winch mechanism (4) lifts the tray (2) via the lifting bracket (3) so that the tray (2) floats completely out of the water. The bottom of the tray (2) is provided with at least one water leakage hole (21) and a filter screen (22) is provided in the water leakage hole (21). The weight of the cultured organisms in the tray (2) is weighed by the first weighing sensor (5).

[0012] A first feeding device (6) is installed above the first fish pond (1). The first feeding device (6) includes a feed hopper (61) for holding feed. A second weighing sensor (62) is installed in the feed hopper (61). A discharge gate valve (63) is installed at the lower end of the feed hopper (61). The first weighing sensor (5), the second weighing sensor (62), and the discharge gate valve (63) are connected to a controller. The controller obtains the weight of the cultured organisms and determines the feeding amount based on the weight of the cultured organisms. The controller opens the discharge gate valve (61) according to the feeding amount and feeding time. The second weighing sensor (7) observes the feed being fed. When the set feeding amount is reached, the controller controls the discharge gate valve (63) to close.

[0013] The tray (2) is provided with at least one partition (7), which divides the tray (2) into at least two feeding spaces. When it is necessary to feed the first fish pond (1), the winch mechanism (4) lifts the tray (2) through the lifting bracket (3) so that the tray (2) is close to the water surface at a distance H. When it is at a distance H from the water surface, the winch mechanism (4) controls the tray (2) to shake up and down, so that the cultured organisms are dispersed to each feeding space. Then the winch mechanism (4) makes the upper edge of the tray (2) float out of the water surface.

[0014] The tray (2) has openings at both the front and rear ends. When the upper edge of the tray (2) floats out of the water, the wall of the first fish pond (1) with the rear opening of the tray (2) facing it is provided with a water inlet hole (11). The water inlet hole (11) is connected to a water inlet valve (13) via a water inlet pipe (12). The wall of the first fish pond (1) with the front opening of the tray (2) facing it is provided with a water outlet hole (14). The water outlet hole (14) is connected to a first water outlet valve (16) via a water outlet pipe (15). A second water outlet valve (17) is also provided at the bottom of the first fish pond (1).

[0015] The inlet valve (13), the first outlet valve (16), and the second outlet valve (17) are connected to the controller, which controls the opening and closing of the inlet valve (13), the first outlet valve (16), and the second outlet valve (17).

[0016] A second fishpond (8) is also provided, and the first fishpond (1) is located in the second fishpond (8). The bottom of the first fishpond (1) is supported on the bottom of the second fishpond (8) by a pillar (18). A transparent sealing cover (81) is provided on the top of the second fishpond (8). The sealing cover (81), the inner wall of the second fishpond (8), and the outer wall of the first fishpond (1) form a deep-water aquaculture area. The deep-water aquaculture area is connected to a pressurization device (82). A pressure sensor (83) is provided on the sealing cover (81). The deep-water aquaculture area is connected to a pressure sensor (83) and a pressure boosting device (82) via a leak pipe (84). The controller obtains the air pressure at the top of the deep-water aquaculture area through the pressure sensor (83). When the air pressure is less than P1, the controller controls the pressure boosting device (82) to replenish the air in the deep-water aquaculture area until the pressure reaches the upper limit P2. The deep-water aquaculture area is ventilated through the leak pipe (84). When the air pressure at the top of the deep-water aquaculture area is less than P1, the controller controls the pressure boosting device (82) to replenish the air in the deep-water aquaculture area, and the cycle continues.

[0017] A second feeding device (85) is provided on the sealing cover plate (81). The second feeding device (85) is provided with a storage pipe (851). The lower end of the storage pipe (851) is connected to the top of the deep-water aquaculture area through a feeding valve (852). A replenishing valve (853) is provided at the upper end of the storage pipe (851). The feeding valve (852) and the replenishing valve (853) are connected by an interlocking structure, or the feeding valve (852) and the replenishing valve (853) are connected by a controller, and the controller is provided with an interlocking structure.

[0018] The bottom of the second fish pond (8) is provided with a cleaning and capture pipe (86), and a cleaning and capture device (87) is provided on the cleaning and capture pipe (86). The cleaning and capture device (87) is used to clean the waste at the bottom of the second fish pond (8) and to capture the cultured organisms in the second fish pond (8).

[0019] The significant effect is that this invention provides a precision feeding system for factory-scale aquaculture, which makes it easy to clearly observe the amount of uneaten feed and facilitates more precise feeding of farmed organisms. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the present invention;

[0021] Figure 2 This is a usage state diagram of the present invention;

[0022] Figure 3 for Figure 2 AA section view;

[0023] Figure 4 This is a structural diagram of the second feeding device;

[0024] Figure 5 This is a circuit module diagram of the present invention;

[0025] Figure 6 This is the circuit diagram of a microcontroller. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1-6As shown, a precision feeding system for factory-scale aquaculture includes a first fish pond (1), in which a channel steel-shaped tray (2) is installed. The tray (2) can slide up and down along the inner wall of the first fish pond (1). The tray (2) is connected to a lifting bracket (3), and the lifting bracket (3) is connected to a winch mechanism (4). When it is necessary to feed the first fish pond (1), the winch mechanism (4) lifts the tray (2) through the lifting bracket (3), so that the upper edge of the tray (2) approaches or floats above the water surface. After feeding is completed, the winch mechanism (4) lowers the tray (2) through the lifting bracket (3), so that the tray (2) sinks to the bottom of the first fish pond (1).

[0028] The hoisting mechanism (4) is equipped with a motor, which is connected to a controller. The controller controls the operation of the hoisting mechanism (4) via the motor. The controller controls the hoisting mechanism (4) to lift or lower the tray (2). The motor is a stepper motor, and the controller is a PLC controller or a microcontroller. The PLC controller or microcontroller drives the motor via a stepper motor drive module.

[0029] When feeding the cultured organisms, the winch mechanism (4) drives the tray (2) to slide upward along the inner wall of the first fishpond (1), causing the cultured organisms at different depths to rise with the tray (2), so that the upper edge of the tray (2) is close to or floats above the water surface. All the cultured organisms are close to the water surface, making it easier to observe the feeding situation and the amount of uneaten food in the tray (2). This makes it easier to determine the feeding amount more accurately. In addition, since the cultured organisms may be distributed at different depths in the first fishpond (1), the above structure can also gather the cultured organisms in the tray (2) for better feeding, so that the cultured organisms at different depths can obtain food in time, which helps to reduce the size difference of the cultured organisms caused by uneven weight of food consumed.

[0030] The outline of the tray (2) is approximately the same as the inner wall outline of the first fish pond (1), and the tray (2) slides into the inner wall of the first fish pond (1). Preferably, there is a gap of less than 1 cm between the left and right side walls of the tray (2) and the inner wall of the first fish pond (1), so that the tray (2) slides up and down more smoothly. The hoisting mechanism (4) is equipped with a stepper motor, which is connected to a controller. The controller drives the hoisting mechanism (4) to work via the stepper motor.

[0031] This patent can be applied to the precision feeding system and method for recirculating aquaculture as described in application number 202210239204.5; including the following: feeding steps: obtaining a feeding trial amount and feeding according to the feeding trial amount; residual feed analysis steps: analyzing the water surface image after feeding in real time and determining whether there is residual feed on the water surface based on the water surface image; aggregation analysis steps: when there is no residual feed on the water surface, analyzing the water surface image to generate the aggregation degree of the cultured organisms, and generating the feeding amount based on the aggregation degree; the feeding steps also include: feeding according to the feeding amount; repeating the residual feed analysis step and the aggregation analysis step.

[0032] like Figures 1-2 As shown, the lifting bracket (3) is connected to the winch mechanism (4) via the first weighing sensor (5). When it is necessary to weigh the cultured organisms, the winch mechanism (4) lifts the tray (2) via the lifting bracket (3) so that the tray (2) floats completely out of the water. The bottom of the tray (2) is provided with at least one water leakage hole (21), and the water leakage hole (21) is provided with a filter screen (22). The weight of the cultured organisms in the tray (2) is weighed by the first weighing sensor (5).

[0033] As the cultured organisms continue to grow, the feeding amount is adjusted according to their different weights. The larger the organism, the greater the feeding amount, which helps to shorten the culture cycle. The feeding amount can be obtained based on experience, such as feeding 5 kg of feed to a 100 kg fish for precise feeding, or it can be obtained through the feeding method described in the background art. The drainage hole (21) allows water in the tray (2) to drain out; the filter screen prevents the cultured organisms and waste on the tray (2) from entering the bottom of the first fish pond (1) below the tray (2).

[0034] A first feeding device (6) is installed above the first fish pond (1). The first feeding device (6) includes a feed hopper (61) for holding feed. A second weighing sensor (62) is installed in the feed hopper (61). A discharge gate valve (63) is installed at the lower end of the feed hopper (61). The first weighing sensor (5), the second weighing sensor (62), and the discharge gate valve (63) are connected to a controller. The controller obtains the weight of the cultured organisms and determines the feeding amount based on the weight of the cultured organisms. The controller opens the discharge gate valve (61) according to the feeding amount and feeding time. The second weighing sensor (7) observes the feed being fed. When the set feeding amount is reached, the controller controls the discharge gate valve (63) to close.

[0035] The first feeding device (6) described above can automatically feed the cultured organisms in the tray (2). For example, when the feeding time (6:00 AM) arrives, the controller controls the tray (2) to float completely out of the water surface through the winch mechanism (4), weighs it, and then determines the feeding amount. This set feeding amount is obtained from actual experience, such as 5 kg of feed. Then, the controller controls the tray (2) to sink through the winch mechanism (4), so that its upper edge is close to or floats out of the water surface, for example, the upper edge of the tray (2) is within 10 cm above or below the water surface. The controller opens the feed gate valve (61), and the feed in the hopper (61) enters the tray (2) through the feed gate valve (61). When the feeding amount of 5 kg is reached, the controller controls the feed gate valve (63) to close.

[0036] like Figure 1 As shown, the hopper (61) is connected to the second weighing sensor (62) via a hoisting rope and is hoisted onto the support via the second weighing sensor (62). The hopper (61) is bucket-shaped and is used to hold bait. The lower end is a discharge pipe with a discharge gate valve (61) installed on it.

[0037] like Figure 1 and Figure 2 As shown, at least one partition (7) is provided inside the tray (2). The partition (7) divides the tray (2) into at least two feeding spaces. When it is necessary to feed the first fish pond (1), the winch mechanism (4) lifts the tray (2) through the lifting bracket (3) so that the tray (2) is close to the water surface at a distance H. When it is at a distance H from the water surface, the winch mechanism (4) controls the tray (2) to shake up and down, so that the cultured organisms are dispersed to each feeding space. Then the winch mechanism (4) makes the upper edge of the tray (2) float out of the water surface.

[0038] Cultured organisms usually gather in various corners of the first fishpond (1). When feeding, this can lead to uneven feeding. When the upper edge of the tray (2) is H above the water surface, the winch mechanism (4) controls the tray (2) to shake up and down, causing the cultured organisms to disperse from the corners to various feeding spaces. This makes it easier for the cultured organisms to obtain food more evenly. H is preferably 1 meter to 0.5 meters. Then, the winch mechanism (4) makes the upper edge of the tray (2) float above the water surface. When the upper edge floats within 10 cm above the water surface, the food is placed. The height of the tray (2) is within 1 meter, which makes it easy to observe the feeding situation.

[0039] like Figure 1 , Figure 3As shown, the tray (2) has openings at both the front and rear ends. When the upper edge of the tray (2) floats above the water surface, the wall of the first fish pond (1) directly opposite the rear opening of the tray (2) is provided with a water inlet hole (11). The water inlet hole (11) is connected to a water inlet valve (13) via a water inlet pipe (12). The wall of the first fish pond (1) directly opposite the front opening of the tray (2) is provided with a water outlet hole (14). The water outlet hole (14) is connected to a first water outlet valve (16) via a water outlet pipe (15). A second water outlet valve (17) is also provided at the bottom of the first fish pond (1). A mesh is provided at the water outlet hole (14) to prevent the cultured organisms from escaping through the water outlet hole (14).

[0040] In the prior art, the excrement and uneaten food of farmed organisms usually accumulate at the bottom of the fish pond. If not cleaned regularly, it can easily lead to diseases in the farmed organisms. To clean it, all the water in the pond must be drained. With the structure of this invention, the excrement and uneaten food of farmed organisms accumulate on the tray (2). The inlet valve (13) is connected to pressurized water. After the controller opens the inlet valve (13), pressurized water is sprayed out through the inlet hole (11) to flush the tray (2). The controller opens the first outlet valve (16), and the excrement and uneaten food of farmed organisms are discharged from the tray (2) through the outlet hole (14) and the outlet pipe (15). After cleaning, the controller closes the inlet valve (13) and the first outlet valve (16). With the above structure, the tray (2) can be cleaned frequently without having to drain the first fish pond (1) completely every time. The second outlet valve (17) is used to drain all the water in the first fish pond (1) for thorough cleaning. The inlet valve (13) can also be used to replenish the water in the first fish pond (1).

[0041] The inlet valve (13), the first outlet valve (16), and the second outlet valve (17) are connected to the controller, and their opening and closing are controlled by the controller.

[0042] like Figure 1As shown, a second fish pond (8) is also provided, and a first fish pond (1) is set in the second fish pond (8). The bottom of the first fish pond (1) is supported on the bottom of the second fish pond (8) by a pillar (18). A transparent sealing cover (81) is provided on the top of the second fish pond (8). The sealing cover (81), the inner wall of the second fish pond (8), and the outer wall of the first fish pond (1) form a deep-water aquaculture area. The deep-water aquaculture area is connected to a pressurization device (82). A pressure sensor (83) and a vent pipe (84) are provided on the sealing cover (81). The pressure sensor (83) and the pressurization device (84) are connected to the vent pipe (82). The device (82) is connected to a controller. The controller obtains the air pressure above the deep-water aquaculture area through a pressure sensor (83). When the air pressure is less than P1, the controller controls the booster device (82) to replenish the air in the deep-water aquaculture area until the pressure reaches the upper limit P2. The deep-water aquaculture area is ventilated through a leak pipe (84). When the air pressure above the deep-water aquaculture area is less than P1 due to leakage, the controller controls the booster device (82) to replenish the air in the deep-water aquaculture area until the pressure reaches the upper limit P2. The booster device (82) stops working, and the leakage pressure of the leak pipe (84) drops again until it reaches P1, and the cycle continues. The booster device (82) is a booster pump.

[0043] When a single aquaculture species is farmed, management is relatively simple. However, monoculture carries commercial risks. If the price of a certain aquaculture species plummets, farmers can easily lose everything. Therefore, diversified aquaculture helps reduce commercial risks. In this invention, the first fishpond (1) can be used to farm common fish, and the second fishpond (8) is used to farm deep-water fish. Setting the first fishpond (1) in the second fishpond (8) helps to increase the area of ​​the deep-water zone of the second fishpond (8) and reduce the area of ​​the shallow-water zone, which helps to reduce the footprint of the plant and save water resources. Deep-water fish, such as ribbonfish, require higher pressure. If the pressure is too low, they are prone to death. The pressure is supplemented by the pressurization device (82) to keep the air pressure above the deep-water aquaculture zone between P1 and P2. Air is leaked through the vent pipe (84). When the air pressure above the deep-water aquaculture zone is less than P1, the controller controls the pressurization device (82) to supplement the air in the deep-water aquaculture zone. The cycle works to achieve the effect of ventilation. The vent pipe (84) here plays the role of ventilation.

[0044] The air leakage pipe (84) is equipped with an air leakage valve (841). The air leakage rate, i.e., the air exchange rate, can be controlled by controlling the opening degree of the air leakage valve (841). Preferably, the sealing cover (81) is removable or partially removable to facilitate cleaning and maintenance of the second fish pond (8).

[0045] In this embodiment, the sealing cover (81) is annular and has a hole through which the top of the first fish pond (1) passes. The shape of the sealing cover (81) can be set according to specific needs.

[0046] like Figure 1 and Figure 4 As shown, a second feeding device (85) is provided on the sealing cover plate (81), and the second feeding device (85) is provided with a storage pipe (851). The lower end of the storage pipe (851) is connected to the top of the deep-water aquaculture area through a feeding valve (852). A replenishing valve (853) is provided at the upper end of the storage pipe (851). The feeding valve (852) and the replenishing valve (853) are connected by an interlocking structure, or the feeding valve (852) and the replenishing valve (853) are connected by a controller, and the controller is provided with an interlocking structure.

[0047] The interlock structure is a control program set within the controller. When it is necessary to add bait to the second fishpond (8), a feeding command is input to the controller. The controller first controls the feeding valve (852) to close, and then controls the replenishing valve (853) to open. At this time, bait can be added to the storage pipe (851). After the feeding is completed, the controller controls the replenishing valve (853) to close, and then controls the feeding valve (852) to open, so that the bait in the storage pipe (851) falls into the second fishpond (8). The interlock structure can also be an interlock control circuit connecting the feeding valve (852) and the replenishing valve (853).

[0048] like Figure 1 As shown, a cleaning and capture pipe (86) is provided at the bottom of the second fish pond (8), and a cleaning and capture device (87) is provided on the cleaning and capture pipe (86). The cleaning and capture device (87) is used to clean the waste at the bottom of the second fish pond (8) and to capture the cultured organisms in the second fish pond (8).

[0049] like Figure 1 As shown, the cleaning and capture device (87) includes a mesh valve (871) and a gate valve (872) disposed on the cleaning and capture pipe (86). The mesh valve (871) is provided with mesh openings (8711) that allow waste to pass through and prevent aquaculture organisms from passing through. The mesh valve (871) is disposed above the gate valve (872), and the mesh valve (871) and the gate valve (872) are connected to a controller. When the mesh valve (871) and the gate valve (872) are closed together, the second fish pond (8) is closed to the cleaning and capture pipe (86); when the gate valve (872) is open and the mesh valve (871) is closed, waste and wastewater at the bottom of the second fish pond (8) can pass through the mesh openings (8711) and then through the gate valve (872) to flow out from the other end of the cleaning and capture pipe (86). When the gate valve (872) and the net valve (871) are opened together, the cultured organisms flow out from the other end of the cleaning and capture pipe (86) through the net valve (871) and the gate valve (872). The cleaning and capture device (87) also includes a fishing net set at the other end of the cleaning and capture pipe (86). The cultured organisms can be captured by setting the fishing net at the other end of the cleaning and capture pipe (86).

[0050] Preferably, both the first fishpond (1) and the second fishpond (8) are equipped with water depth sensors to control the water depth; the second fishpond (8) is also equipped with a pressurized water supply pipe for water supply; the water depth sensor is connected to the controller for detecting the water depth; the structural diagram is omitted.

[0051] The controller is a PLC controller or a microcontroller, such as Figure 5 and Figure 6 As shown, the controller of this invention uses an STM32F103 microcontroller, the first weighing sensor (5) and the second weighing sensor (62) are Lijing C420 column-type weighing sensors, and the pressure sensor (83) is a PCM350 diffused silicon 0.5-grade industrial-grade pressure transmitter. Figure 5 The diagram shown is a circuit module diagram of the present invention. The clock module adopts the S-35390A clock module to provide clock signals to the controller. The circuit diagram is omitted. Figure 6 The control circuit diagram of the microcontroller is shown. The control circuits of the feeding valve (852), the replenishing valve (853), the mesh valve (871), and the gate valve (872) are the same as the control circuit of the discharge gate valve (63). The diagram is omitted.

[0052] Finally, it should be noted that the above are only specific embodiments of the present invention. Those skilled in the art can make modifications and variations to the present invention. If such modifications and variations fall within the scope of the claims of the present invention and their equivalents, they should be considered as being within the protection scope of the present invention.

Claims

1. A precision feeding system for factory-scale aquaculture, comprising a first fishpond (1), characterized in that: The first fish pond (1) is equipped with a channel steel tray (2). The tray (2) can slide up and down along the inner wall of the first fish pond (1). The tray (2) is connected to a lifting bracket (3). The lifting bracket (3) is connected to a winch mechanism (4). When it is necessary to feed the first fish pond (1), the winch mechanism (4) lifts the tray (2) through the lifting bracket (3) so that the upper edge of the tray (2) is close to or floats above the water surface. After feeding, the winch mechanism (4) lowers the tray (2) through the lifting bracket (3) so that the tray (2) sinks to the bottom of the first fish pond (1).

2. The precision feeding system for factory-scale aquaculture according to claim 1, characterized in that: The hoisting mechanism (4) is equipped with a motor, which is connected to a controller. The controller controls the operation of the hoisting mechanism (4) via the motor.

3. The precision feeding system for factory-scale aquaculture according to claim 1, characterized in that: The lifting bracket (3) is connected to the winch mechanism (4) via the first weighing sensor (5). When it is necessary to weigh the cultured organisms, the winch mechanism (4) lifts the tray (2) via the lifting bracket (3) so that the tray (2) floats completely out of the water. The bottom of the tray (2) is provided with at least one water leakage hole (21) and a filter screen (22) is provided in the water leakage hole (21). The weight of the cultured organisms in the tray (2) is weighed by the first weighing sensor (5).

4. The precision feeding system for factory-scale aquaculture according to claim 3, characterized in that: A first feeding device (6) is installed above the first fish pond (1). The first feeding device (6) includes a feed hopper (61) for holding feed. A second weighing sensor (62) is installed in the feed hopper (61). A discharge gate valve (63) is installed at the lower end of the feed hopper (61). The first weighing sensor (5), the second weighing sensor (62), and the discharge gate valve (63) are connected to a controller. The controller obtains the weight of the cultured organisms and determines the feeding amount based on the weight of the cultured organisms. The controller opens the discharge gate valve (61) according to the feeding amount and feeding time. The second weighing sensor (7) observes the feed being fed. When the set feeding amount is reached, the controller controls the discharge gate valve (63) to close.

5. The precision feeding system for factory-scale aquaculture according to claim 1, characterized in that: The tray (2) is provided with at least one partition (7), which divides the tray (2) into at least two feeding spaces. When it is necessary to feed the first fish pond (1), the winch mechanism (4) lifts the tray (2) through the lifting bracket (3) so that the tray (2) is close to the water surface at a distance H. When it is at a distance H from the water surface, the winch mechanism (4) controls the tray (2) to shake up and down, so that the cultured organisms are dispersed to each feeding space. Then the winch mechanism (4) makes the upper edge of the tray (2) float out of the water surface.

6. The precision feeding system for factory-scale aquaculture according to claim 1, characterized in that: The tray (2) has openings at both the front and rear ends. When the upper edge of the tray (2) floats out of the water, the wall of the first fish pond (1) with the rear opening of the tray (2) facing it is provided with a water inlet hole (11). The water inlet hole (11) is connected to a water inlet valve (13) via a water inlet pipe (12). The wall of the first fish pond (1) with the front opening of the tray (2) facing it is provided with a water outlet hole (14). The water outlet hole (14) is connected to a first water outlet valve (16) via a water outlet pipe (15). A second water outlet valve (17) is also provided at the bottom of the first fish pond (1).

7. The precision feeding system for factory-scale aquaculture according to claim 6, characterized in that: The inlet valve (13), the first outlet valve (16), and the second outlet valve (17) are connected to the controller, which controls the opening and closing of the inlet valve (13), the first outlet valve (16), and the second outlet valve (17).

8. The precision feeding system for factory-scale aquaculture according to claim 1, characterized in that: A second fishpond (8) is also provided, and the first fishpond (1) is located in the second fishpond (8). The bottom of the first fishpond (1) is supported on the bottom of the second fishpond (8) by a pillar (18). A transparent sealing cover (81) is provided on the top of the second fishpond (8). The sealing cover (81), the inner wall of the second fishpond (8), and the outer wall of the first fishpond (1) form a deep-water aquaculture area. The deep-water aquaculture area is connected to a pressurization device (82). A pressure sensor (83) is provided on the sealing cover (81). The deep-water aquaculture area is connected to a pressure sensor (83) and a pressure boosting device (82) via a leak pipe (84). The controller obtains the air pressure at the top of the deep-water aquaculture area through the pressure sensor (83). When the air pressure is less than P1, the controller controls the pressure boosting device (82) to replenish the air in the deep-water aquaculture area until the pressure reaches the upper limit P2. The deep-water aquaculture area is ventilated through the leak pipe (84). When the air pressure at the top of the deep-water aquaculture area is less than P1, the controller controls the pressure boosting device (82) to replenish the air in the deep-water aquaculture area, and the cycle continues.

9. The precision feeding system for factory-scale aquaculture according to claim 8, characterized in that: A second feeding device (85) is provided on the sealing cover plate (81). The second feeding device (85) is provided with a storage pipe (851). The lower end of the storage pipe (851) is connected to the top of the deep-water aquaculture area through a feeding valve (852). A replenishing valve (853) is provided at the upper end of the storage pipe (851). The feeding valve (852) and the replenishing valve (853) are connected by an interlocking structure, or the feeding valve (852) and the replenishing valve (853) are connected by a controller, and the controller is provided with an interlocking structure.

10. The precision feeding system for factory-scale aquaculture according to claim 9, characterized in that: The bottom of the second fish pond (8) is provided with a cleaning and capture pipe (86), and a cleaning and capture device (87) is provided on the cleaning and capture pipe (86). The cleaning and capture device (87) is used to clean the waste at the bottom of the second fish pond (8) and to capture the cultured organisms in the second fish pond (8).

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