NL2031382B1

NL2031382B1 - Vertical automatic prawn culture device and culture method

Info

Publication number: NL2031382B1
Application number: NL2031382A
Authority: NL
Inventors: Zhou Falin; Jiang Song; Huang Zhong; Lin Heizhao; Huang Xiaolin; Jiang Shigui; Li Yundong; Huang Jianhua; Yang Lishi
Original assignee: South China Sea Fisheries Res Inst Chinese Acad Fishery Sciences; Shenzhen Base Of South China Sea Fisheries Res Institute Chinese Academy Of Fishery Sciences
Priority date: 2021-09-29
Filing date: 2022-03-23
Publication date: 2023-01-11
Also published as: CN114097675A; CN114097675B

Abstract

Disclosed is a vertical automatic prawn culture device and a culture method. The device comprises a moving mechanism and a discharging mechanism. The discharging mechanism comprises two groups of symmetrically arranged support brackets; a first chain wheel is arranged at the bottom of each group of the support brackets; a second chain wheel is arranged at the top of the support bracket; the first chain wheel is connected with the second chain wheel through a first chain; and the first chain wheels are connected with each other through a rotating shaft, so that the two groups of support brackets are connected; and a plurality of culture space chambers are arranged on the first chain, and the culture space chambers make circular movement under the action of the first chains. The present invention is provided with a feeding mechanism, and the feeding mechanism can implement an accurate feeding amount, which not only reduces deterioration of a water environment in a culture bucket and ensures health of a prawn culture environment, but also realizes an accurate feeding function according to the quantity of prawns in different growth stages as reference values, thereby ensuring cleanliness of water quality.

Description

VERTICAL AUTOMATIC PRAWN CULTURE DEVICE AND CULTURE METHOD Technical Field The present invention relates to the field of prawn culture, in particular to a vertical automatic prawn culture device and a culture method.

Background In recent years, the aquaculture industry in China has been developing and growing, and the output of aquatic products is also rising rapidly.

On the other hand, with the continuous increase of the aquaculture area, some secondary problems such as water pollution, bacteria and viruses, shortage of water resources, hormones and heavy metals have begun to appear, which has restricted the development of the aquaculture industry and endangered human food safety.

In view of such problems, the traditional aquaculture industry cannot meet the needs of modern aquaculture, while the industrialized circulating water aquaculture technology with the advantages of water saving, land saving, short aquaculture cycle, high yield, easy management, no limitation by seasonal changes, high degree automation and no pollution has begun to draw the attention and recognition of people.

The industrialized circulating water culture technology is a technology which integrates the modern technologies to realize the recycling of aquaculture water, reduce the pollution of aquaculture environment and improve the utilization rate of water.

Inthe process of culture, metabolites, bait residues, biological carcasses and other proteins of cultured objects cannot be decomposed in time, which leads to the rise of harmful substances such as ammonia nitrogen and nitrite nitrogen in the water body, thereby polluting the water quality, causing toxic effects on the cultured products, and then leading to deaths of a large quantity of cultured products.

Therefore, in the process of industrial culture, the biological water purification technology is widely used in water quality treatment, among which the biofilm method is widely used.

This method mainly relies on microorganisms attached to the surface of biological carriers or filter materials to degrade harmful substances such as ammonia nitrogen and nitrite in water, so as to achieve the function of water purification.

However, this kind of method does not solve the problem essentially.

At present, it still depends on the subjective feeling of farmers to determine the feeding amount, and cannot form a standard for feeding.

There may be waste and insufficient feeding of bait.

In addition, the current circular culture system occupies a large space, and cannot realize unified intelligent management, which is not conducive to industrialization.

Summary The present invention overcomes shortcomings of the prior art and provides a vertical automatic prawn culture device and a culture method.

In order to achieve the above purpose, a technical solution adopted by the present invention is as follows: A first aspect of the present invention provides a vertical automatic prawn culture device, which comprises a moving mechanism and a discharging mechanism. The discharging mechanism is arranged on the moving mechanism.

The discharging mechanism comprises two groups of symmetrically arranged support brackets; a first chain wheel is arranged at the bottom of each group of the support brackets; a second chain wheel is arranged at the top of the support bracket; the first chain wheel is connected with the second chain wheel through a first chain; the first chain wheels are connected with each other through a rotating shaft, so that the two groups of support brackets are connected; and a plurality of culture space chambers are arranged on the first chain, and the culture space chambers make circular movement under the action of the first chains.

The discharging mechanism comprises a second support frame; a linear guide rail is arranged on the second support frame; the linear guide rail is connected with a support plate; a discharging bin is arranged on the support plate; a blanking channel is arranged on the side of the discharging bin; and the other end of the blanking channel is connected with a feeding bin.

Further, in a preferred embodiment of the present invention, the culture space chamber comprises a first support frame; connecting rods are arranged at both ends of the first support frame; and the connecting rods are fixed on the first chain.

Further, in a preferred embodiment of the present invention, both ends of the first support frame are provided with reinforcing rods, and the reinforcing rods are connected with a placement frame.

Further, in a preferred embodiment of the present invention, a camera is arranged on the first support frame; the camera is used for collecting real-time information during culture; and the real- time information at least includes the culture quantity of prawns in a culture bucket arranged on the placement frame.

Further, in a preferred embodiment of the present invention, the rotating shaft is further provided with a third chain wheel; the third chain wheel is connected with a fourth chain wheel through a second chain; the fourth chain wheel is driven by a driving motor; and the driving motor is arranged on any group of the support brackets.

Further, in a preferred embodiment of the present invention, the second support frame is further provided with a rotating motor, an output end of the rotating motor is connected with a swing shaft, and swing blades distributed in a circumference are arranged on the swing shaft.

Further, in a preferred embodiment of the present invention, a second cylinder is further arranged on the second support frame, the second cylinder drives the support plate, and both ends of the second support frame are fixed on the bottom of the support bracket.

Further, in a preferred embodiment of the present invention, the swing blades swing in the discharging bin.

A second aspect of the present invention provides a culture method of a vertical automatic prawn culture device, which is applied to any one of the above vertical automatic prawn culture devices and comprises the following steps: acquiring an image in a culture bucket on a placement frame; smoothing and filtering the image to eliminate random noise in the image, sharpening the image to strengthen contour edges of prawns in the image, and extracting characteristic contours in the image; counting the quantity of the characteristic contours in the image, and calculating the quantity of the prawns in the culture bucket according to the quantity of the characteristic contours; calculating a required bait amount based on the quantity of the prawns; and transmitting the required bait amount to a discharging mechanism control terminal.

Further, in a preferred embodiment of the present invention, the step of counting the quantity of the characteristic contours in the image, and calculating the quantity of the prawns in the culture bucket according to the quantity of the characteristic contours specifically comprises the following steps: determining growth stages of the prawns in the image according to the characteristic contours, and respectively recording the quantity of the prawns in different growth stages to obtain the quantity of the prawns in each growth stage.

The present invention solves defects existing in the background, and has the following beneficial effects: the vertical prawn culture device provided by the present invention can calculate a feeding amount according to growth conditions in the culture bucket on the placement frame and the quantity of the prawns in the culture bucket, thereby utilizing the discharging mechanism to accurately place bait in the culture bucket. The present invention can be of a vertical culture structure. During use, the present invention has automatic control and high degree of intelligence.

Moreover, the structure can accommodate a plurality of culture systems, occupies a small space and is easy to manage. The present invention is provided with a feeding mechanism. The feeding mechanism can automatically and evenly feed the prawns in the culture system, and also can feed the prawns according to their active environment, so that the timeliness of feeding is ensured, and the technical problem of slow growth of the prawns caused by untimely feeding is avoided.

Moreover, the accurate feeding amount reduces deterioration of a water environment in the culture bucket and ensures health of a prawn culture environment, and also realizes an accurate feeding function according to the number of the prawns in the different growth stages as reference values, thereby ensuring cleanliness of water quality.

Description of Drawings To more clearly describe the technical solutions in the embodiments of the present invention or in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be simply presented below. Obviously, the drawings in the following description are merely some embodiments of the present invention, and for those ordinary skilled in the art, drawings of other embodiments can also be obtained according to the drawings without contributing creative labour.

Fig. 1 shows a schematic diagram of an overall structure of a vertical automatic prawn culture device; Fig. 2 shows a schematic diagram of a partial structure of a vertical automatic prawn culture device; Fig. 3 shows a schematic diagram of a partial structure of a vertical automatic prawn culture device; Fig. 4 shows a schematic diagram of a partial structure of a vertical automatic prawn culture device; Fig. 5 shows a schematic diagram of a partial structure of a moving mechanism; Fig. 6 shows a schematic diagram of a partial structure of a discharging mechanism; Fig. 7 shows a schematic diagram of a partial structure of a discharging mechanism; Fig. 8 shows a schematic diagram of a partial structure of a discharging mechanism; and Fig. 9 shows a flow chart of a culture method of a vertical automatic prawn culture device.

In the drawings:

1. moving mechanism; 2. discharging mechanism; 1-1. support bracket; 1-2. first chain wheel; 1-3. second chain wheel; 1-4. first chain; 1-5. rotating shaft; 1-6. culture space chamber; 1-7. third chain wheel; 1-8. second chain; 1-9. fourth chain wheel; 1-10. driving motor; 2-1. second support frame; 2-2. linear guide rail, 2-3. support plate; 2-4. discharging bin; 2-5. blanking channel; 2-8. feeding bin; 2-7. rotating motor; 2-8. swing shaft; 2-9. swing blade; 2-10. second cylinder; 3-

1. first support frame; 3-2. connecting rod; 3-3. reinforcing rod; and 3-4. placement frame.

Detailed Description To understand above purposes, features and advantages of the present invention more clearly, the present invention is further detailed below in combination with drawings and specific embodiments. These figures are simplified schematic diagrams, only illustrate the basic structure of the present invention exemplarily, and thus only show the composition relevant to the present invention. It should be explained that if there is no conflict, the embodiments in the present application and the features in the embodiments can be mutually combined.

Many details are elaborated in the following description for convenience of fully understanding the present invention. However, the present invention can also be implemented in other modes different from those described herein. Therefore, a protection scope of the present invention is not limited by specific embodiments disclosed below.

It should be noted in the description of the present application that, unless otherwise specifically regulated and defined, terms such as “installation”, “connected” and “connection” shall be understood in broad sense, and for example, may refer to fixed connection or detachable connection or integral connection, may refer to mechanical connection or electrical connection, and may refer to direct connection or indirect connection through an intermediate medium or inner communication of two elements. For those ordinary skilled in the art, the meanings of the above terms in the present application can be understood through specific conditions.

5 As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a first aspect of the present invention provides a vertical automatic prawn culture device, which comprises a moving mechanism 1 and a discharging mechanism 2. The discharging mechanism 1 is arranged on the moving mechanism

2.

The discharging mechanism 1 comprises two groups of symmetrically arranged support brackets 1-1; a first chain wheel 1-2 is arranged at the bottom of each group of the support brackets 1-1; a second chain wheel 1-3 is arranged at the top of the support bracket 1-1; the first chain wheel 1-2 is connected with the second chain wheel 1-3 through a first chain 1-4; the first chain wheels 1-2 are connected with each other through a rotating shaft 1-5, so that the two groups of support brackets 1-1 are connected; and a plurality of culture space chambers 1-6 are arranged on the first chain 1-3, and the culture space chambers 1-6 make circular movement under the action of the first chains 1-3.

Further, in a preferred embodiment of the present invention, the culture space chamber 1-6 comprises a first support frame 3-1; connecting rods 3-2 are arranged at both ends of the first support frame 3-1; and the connecting rods 3-2 are fixed on the first chain 1-4.

Further, in a preferred embodiment of the present invention, the rotating shaft 1-5 is further provided with a third chain wheel 1-7; the third chain wheel 1-7 is connected with a fourth chain wheel 1-9 through a second chain 1-8; the fourth chain wheel 1-9 is driven by a driving motor 1- 10; and the driving motor 1-10 is arranged on any group of the support brackets 1-1.

It should be noted that, a culture user may place a culture system in the culture space chamber 1-6. When bait is fed into the culture system, the fourth chain wheel 1-2 may be driven by the driving motor 1-10, thereby driving the third chain wheel 1-7 under the action of the second chain 1-8. Further, the two symmetrically arranged first chain wheels 1-2 are activated under the action of the rotating shaft 1-5, so that the first chain 1-3 makes circular movement and then the culture space chambers 1-6 make circular movement under the action of the first chain 1-3. When the culture space chambers move to the bottom of the support bracket 1-1, the bait can be fed into the culture system in the culture space chamber 1-6, so that the bait can be fed into the culture system in sequence through the circular movement, and the culture system can be monitored and fed regularly and quantitatively by machines instead of manpower, thereby improving the feeding efficiency.

As shown in Fig. 5, further, in a preferred embodiment of the present invention, both ends of the first support frame 3-1 are provided with reinforcing rods 3-3, and the reinforcing rods 3-3 are connected with a placement frame 3-4.

Further, in a preferred embodiment of the present invention, a camera is arranged on the first support frame 3-1; the camera is used for collecting real-time information during culture; and the real-time information at least includes the culture quantity of prawns in a culture bucket arranged on the placement frame.

It should be noted that, there are prawns in different growth stages in the culture bucket, while the feeding amount of the prawns in different growth stages is inconsistent, so that the image in the culture bucket can be obtained by the camera, thereby filtering the image in the culture bucket, obtaining body shape contours of the prawns, and analyzing the quantity and growth stages of the prawns in culture according to the body shape contours. In this way, a feeding amount to be fed is accurately calculated according to the quantity of the prawns in different growth stages in the culture bucket. The feeding amount calculated by the method is more accurate, and an accurate feeding function is realized.

It should be noted that, the first support frame 3-1 is provided with a temperature sensor. The temperature sensor can detect a temperature value of the culture system (culture bucket). On the one hand, the temperature value will affect a food intake of the prawns in the culture system, so the feeding amount of the feeding mechanism is further adjusted according to the change of temperature, so that the feeding mechanism is more accurate during bait feeding. On the other hand, the camera is arranged on the first support frame 3-1. The camera can be arranged at multiple angles and orientations to collect images in the culture bucket. The real-time information atleast includes the culture density of prawns per unit volume and the quantity of the prawns per unit volume in the culture bucket. Then, a required feeding amount is calculated according to the culture density of the prawns per unit volume and the quantity of the prawns per unit volume; and then the culture bucket is fed by using the feeding mechanism. In addition, growth conditions of the prawns in the culture system can be monitored in real time through the camera. For example, when the culture density per unit volume is higher than a certain value, the culture user may be reminded to fish the prawns properly, so as to maintain the best culture density of the prawns in the culture bucket, thereby shortening the period from growth to maturity of the prawns and maximizing economic benefits. Further, the camera can monitor the growth conditions of the prawns in the culture bucket in real time. If the camera shoots dead individuals in the culture bucket, the camera can feed back the information to the culture user in real time. Then, the culture user can clean up the dead individuals in time, and prevent the dead individuals that remain in the culture bucket from polluting water quality in the culture bucket.

As shown in Fig. 6, Fig. 7 and Fig. 8, the discharging mechanism 2 comprises a second support frame 2-1; a linear guide rail 2-2 is arranged on the second support frame 2-1; the linear guide rail 2-2 is connected with a support plate 2-3; a discharging bin 2-4 is arranged on the support plate 2-3; a blanking channel 2-5 is arranged on the side of the discharging bin 2-4; and the other end of the blanking channel 2-5 is connected with a feeding bin 2-6.

Further, in a preferred embodiment of the present invention, the second support frame 2-1 is further provided with a rotating motor 2-7; an output end of the rotating motor 2-7 is connected with a swing shaft 2-8; and swing blades 2-9 distributed in a circumference are arranged on the swing shaft 2-8.

Further, in a preferred embodiment of the present invention, a second cylinder 2-10 is further arranged on the second support frame 2-1; the second cylinder 2-10 drives the support plate 2- 3; and both ends of the second support frame 2-1 are fixed on the bottom of the support bracket 1-1.

Further, in a preferred embodiment of the present invention, the swing blades 2-9 swing in the discharging bin 2-4.

It should be noted that, during feeding, the bait enters the blanking channel 2-5 from the feeding bin 2-6, thereby entering the discharging bin 2-4. A metering sensor is arranged in the blanking channel 2-5, and the feeding amount transmitted by a feeding control terminal (such as a feeding amount metering program) can be received through the metering sensor. A control valve is arranged in the blanking channel 2-5. When the feeding amount reaches the feeding amount of the feeding control terminal, the control valve is closed to realize quantitative feeding. In addition, during the process of feeding, after the rotating motor 2-7 drives the swing shaft 2-8, the swing shaft 2-8 drives the swing blades 2-9. Because the swing blades 2-9 are distributed on the swing shaft 2-8 in a circumference, the bait can be more evenly put into the culture bucket, and feeding at only a certain position is avoided. In the process of feeding, the second cylinder 2- 10 is used to push the support plate 2-3, so that the discharging bin 2-6 faces the position of the culture bucket, and feeding is more accurate. In the process, alignment sensors arranged in the placement frame 3-4 and the support plate 2-3 can mainly be used, so that discharging bin can be moved to the position every time during feeding, and accurate feeding can be realized.

To sum up, the vertical prawn culture device provided by the present invention can calculate the feeding amount according to growth conditions in the culture bucket on the placement frame and the quantity of the prawns in the culture bucket, thereby utilizing the discharging mechanism to accurately place the bait in the culture bucket. The present invention can be of a vertical culture structure. During use, the present invention has automatic control and high degree of intelligence.

Moreover, the structure can accommodate a plurality of culture systems, occupies a small space and is easy to manage. The present invention is provided with the feeding mechanism. The feeding mechanism can automatically and evenly feed the prawns in the culture system, and also can feed the prawns according to their active environment, so that the timeliness of feeding is ensured, and the technical problem of slow growth of the prawns caused by untimely feeding is avoided. Moreover, the accurate feeding amount reduces deterioration of a water environment in the culture bucket and ensures health of a prawn culture environment, and also realizes an accurate feeding function according to the number of the prawns in different growth stages as reference values, thereby ensuring cleanliness of water quality.

A second aspect of the present invention provides a culture method of a vertical automatic prawn culture device, which is applied to any one of the above vertical automatic prawn culture devices and comprises the following steps: S102: acquiring an image in a culture bucket on a placement frame; S104: smoothing and filtering the image to eliminate random noise in the image, sharpening the image to strengthen contour edges of prawns in the image, and extracting characteristic contours in the image; S106: counting the quantity of characteristic contours in the image, and calculating the quantity of the prawns in the culture bucket according to the quantity of the characteristic contours; S108: calculating a required bait amount based on the quantity of the prawns; S110: transmitting the required bait amount to a discharging mechanism control terminal.

It should be noted that in the process of smoothing and filtering, a canny algorithm is used to calculate the gradient amplitude and the direction of the smoothed image, and then determine body shape feature contours, wherein the gradient amplitude satisfies the following relation: H(i, j) = [PZG + p3G, DI The direction of the gradient amplitude of the image can be expressed as: F(i,j) = tan"! =, where H(i, j) denotes the gradient amplitude, P. (i,j) is the gradient amplitude in the x direction and P, (i, j) is the gradient amplitude in the y direction. When the value of the amplitude array (i,j) is larger, the image gradient value of the corresponding image is larger. When the gradient amplitude H(i, J) is less than a interpolation results in the two gradient directions, the edge corresponding to H(i, j) is assigned to 0, which means that the edge of the point in the image is a false edge; and when the contour end point is reached, that is, the contour point or contour line is a real edge, contour edges that can be connected can be found from the position in the domain, and the adjacent contour edges are connected. The obtained contour is a contour of the prawn.

F(i,j) is the direction of the gradient amplitude. When the adjacent contour edges are connected, the direction of gradient amplitude is used for in-series connection so as to form the body shape contours of prawns.

It should be noted that, through the contour obtained by the body shape contour, growth stages of prawns in the culture bucket are determined, and the quantity of the prawns in the culture bucket is counted, so as to obtain the quantity of the prawns in each growth stage, and then calculate a feeding amount according to the quantity of the prawns in each growth stage in the culture bucket, thereby realizing accurate feeding and avoiding an error caused by manual feeding. Meanwhile, manpower is liberated and an intelligent feeding strategy is formed.

Further, in a preferred embodiment of the present invention, the step of counting the quantity of the characteristic contours in the image, and calculating the quantity of the prawns in the culture bucket according to the quantity of the characteristic contours specifically comprises the following steps: determining growth stages of the prawns in the image according to the characteristic contours, and respectively recording the quantity of the prawns in different growth stages to obtain the quantity of prawns in each growth stage.

In addition, it shall be understood that although the description is explained in accordance with the embodiments, not every embodiment only includes one independent technical solution. This narration mode of the description is only for clarity. Those skilled in the art shall regard the description as a whole, and the technical solution in each embodiment can also be appropriately combined to form other embodiments understandable for those skilled in the art. The above ideal embodiments according to the present invention are enlightenments. Through the above description, those skilled in the art can completely make various changes and modifications without deviating from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the contents of the description, and the technology must be determined according to the scope of the claims.

Claims

CONCLUSIONS

A device for automatic vertical farming of shrimp, the device comprising a moving mechanism and a dispensing mechanism, the dispensing mechanism being disposed on the moving mechanism, wherein - the dispensing mechanism comprises two groups of symmetrically arranged carrying handles, - a first sprocket below placed on each group of the carrying handles; - a second sprocket is placed at the top of the carrying handle, - the first sprocket is connected to the second sprocket by means of a first chain, - the first sprockets are connected to each other by a rotating shaft, so that the two groups of brackets are connected to each other, and - a plurality of grow room chambers placed on the first chain, the grow room chambers making a circular movement by the action of the first chains; - the dispensing mechanism comprises a second support frame; wherein — a linear guide rail is placed on the second support frame; - the linear guide rail is connected to a support plate, - a dispensing tray is placed on the support plate, - a closable channel is placed on the side of the dispensing tray; and - the other end of the closable channel is connected to a feeding trough.

The apparatus for automatic shrimp vertical farming according to claim 1, wherein - the breeding room chambers include a first support frame, with connecting bars placed at both ends of the first support frame; and — the connecting bars are attached to the first chain.

The apparatus for automatic shrimp vertical farming according to claim 2, wherein - both ends of the first support frame are provided with stiffening bars, and - the stiffening bars are connected to a placement frame. A4 The apparatus for automatic shrimp vertical farming according to claim 2, wherein - a camera is mounted on the first support frame;

— the camera is used to collect real-time information during cultivation; and - the real-time information includes at least the rearing amount of shrimp in a rearing bucket placed on the placement frame.

The apparatus for automatic vertical shrimp farming according to claim 1, wherein - the rotating shaft further comprises a third sprocket wheel; - the third sprocket is connected to a fourth sprocket by means of a second chain, - the fourth sprocket is driven by a drive motor, and - the drive motor is placed on any group of the support brackets.

The apparatus for automatic vertical shrimp farming according to claim 1, wherein - the second support frame is further provided with a rotary motor, - a delivery end of the rotary motor is connected to a rocker shaft, and - rocker vanes are arranged around the periphery of the shrimp. the rocker shaft are installed.

The apparatus for automatic shrimp vertical farming according to claim 1, wherein - further, a second cylinder is placed on the second support frame, - the second cylinder drives the support plate, and - both ends of the second support frame are fixed at the bottom of the support bracket .

The apparatus for automatic shrimp vertical farming according to claim 6, wherein the rocker blades tumble in the dispensing tray.

A breeding method with an automatic shrimp vertical farming device, which method is performed with an automatic shrimp vertical farming device according to any one of claims 1 to 8, and the method comprises the following steps: acquiring an image in a breeding tank on a placement frame; — smoothing and filtering the image to eliminate random noise in the image, sharpening the image to enhance the contour edges of shrimps in the image, and extracting characteristic contours in the image;

— counting the number of characteristic contours in the image, and calculating the number of shrimps in the breeding tank from the amount of characteristic contours; — calculating the required amount of bait based on the number of shrimps; and — transferring the required amount of bait to a control terminal with a dispensing mechanism.

10. The breeding method of shrimp automatic vertical breeding device, which includes the step of counting the amount of characteristic contours in the picture, and calculating the amount of shrimp in the breeding tank based on the number of the characteristic contours includes the following steps: — determining the growth stages of the shrimps in the image from the characteristic contours, and respectively recording the number of shrimps at different growth stages to determine the number of shrimps in each growth stage.