Intelligent three-dimensional breeding system for river crabs
The intelligent three-dimensional aquaculture system solves the problems of low yield, frequent fighting, and difficulty in controlling heat damage in traditional crab farming by using an electric lifting platform and intelligent control system, and achieves efficient water utilization and automated management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
- Filing Date
- 2026-03-27
- Publication Date
- 2026-04-28
AI Technical Summary
In the traditional bottom-floor aquaculture model, crabs are susceptible to attacks from other crabs, resulting in low yields, low water resource utilization, a lack of real-time water quality monitoring and control, and difficulty in preventing heat damage during high-temperature periods.
The system employs an intelligent three-dimensional aquaculture system, which includes aquaculture components, an electric lifting platform, and an intelligent control system. By monitoring environmental parameters through sensors, the system controls the electric lifting platform to drive the aquaculture components to rise and fall, achieving automatic risk avoidance, and utilizing agricultural drones for precise feeding.
It increased yield per unit area, reduced fighting among crabs, enabled proactive avoidance of high-temperature heat damage, reduced manual operation costs, and improved the automation level of aquaculture.
Smart Images

Figure CN121926162A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of aquaculture technology, and more specifically to an intelligent three-dimensional aquaculture system for river crabs. Background Technology
[0002] Currently, crab farming in my country mainly uses the traditional bottom-floor pond culture method, which has many problems. First, in traditional farming environments, crabs are easily attacked by other crabs during molting, resulting in significant losses and low yields. Second, traditional farming utilizes the bottom of the pond, leading to low utilization of the vast upper and middle water layers. Stocking density is typically limited to around 1000-1500 crabs per mu (approximately 667 square meters), resulting in limited productivity per unit area. Furthermore, there is a lack of real-time monitoring of water quality and hydrology, making heat stress control particularly difficult in summer. During high-temperature periods, surface water temperatures often exceed 35°C, and insufficient dissolved oxygen at the bottom due to organic matter decomposition easily leads to heat stress-induced mortality or growth stagnation.
[0003] To address the problems inherent in traditional bottom-floor aquaculture, several three-dimensional aquaculture technologies have been proposed in this field, such as a three-dimensional aquaculture method for Chinese mitten crabs (202011331853.5), a three-dimensional aquaculture rack for river crabs (202120868017.4), and a novel three-dimensional aquaculture device for river crabs (202220244633.7). These solutions enable the utilization of water resources in the middle and upper layers and can increase yields to some extent. However, the management models of existing solutions rely on manual experience and lack real-time monitoring and equipment linkage control mechanisms for key indicators such as water temperature and dissolved oxygen. Precision in manual feeding and inspection is difficult, revealing numerous shortcomings in the process of developing towards intelligent systems.
[0004] In summary, there is a need in this field for an intelligent three-dimensional aquaculture solution that can make full use of the vertical space of water bodies, effectively prevent fighting among similar species, and achieve automatic lifting and hazard avoidance through intelligent environmental perception. Summary of the Invention
[0005] In view of this, the purpose of the present invention is to provide an intelligent three-dimensional aquaculture system for river crabs, which adopts aquaculture components that can make full use of vertical aquaculture space, monitors the aquaculture environment through an intelligent control system, and drives the aquaculture components to automatically lift and lower to avoid danger through an electric lifting platform, thereby realizing intelligent aquaculture.
[0006] To achieve the above objectives, the present invention provides an intelligent three-dimensional aquaculture system for river crabs, comprising an aquaculture component, an electric lifting platform, an intelligent control system, and a three-dimensional feeding system. The aquaculture component consists of several net cages, and the electric lifting platform is installed in a pond, with the aquaculture component and the electric lifting platform being connected by a transmission mechanism. The intelligent control system includes an Internet of Things (IoT) control box for controlling the working status of the electric lifting platform and a sensor component installed in conjunction with the aquaculture component. The sensor component monitors environmental parameters in the pond and transmits them to the IoT control box. The IoT control box controls the electric lifting platform to drive the aquaculture component to move up and down based on the environmental parameters. The three-dimensional feeding system feeds the crabs from the top of the pond.
[0007] Preferably, multiple net cages are connected laterally to form the aquaculture assembly.
[0008] Preferably, the top of the cage has a cover, the cage has an array of side mesh holes around its perimeter, the cage has an array of bottom mesh holes at its bottom, and the cover has an array of cover mesh holes.
[0009] Preferably, the side mesh and the lid mesh are both 2cm×2cm in diameter, and the bottom mesh is 4mm×4mm in diameter.
[0010] Preferably, one side of the cover is connected to the mesh cage via a hinge, and the other side is connected to the mesh cage via a self-locking buckle.
[0011] Preferably, the cage is made of food-grade polypropylene or polyethylene by injection molding, and the cage frame thickness is ≥3mm.
[0012] Preferably, the electric lifting platform includes a set of bases with their bottoms driven into the bottom of the pond. Electric lifting drive devices are fixedly installed on the bases. The electric lifting drive devices are connected to both ends of a lifting frame via stainless steel ropes. The aquaculture components are installed at the bottom of the lifting frame. The electric lifting drive devices are electrically connected to the Internet of Things (IoT) control box, and the IoT control box controls the working status of the electric lifting drive devices.
[0013] Preferably, the intelligent control system includes a remote terminal, which is communicatively connected to the IoT control box, and the parameters monitored and collected by the sensor components are sent to the remote terminal via the IoT control box.
[0014] Preferably, the sensor assembly includes a temperature sensor and a dissolved oxygen sensor respectively arranged in the surface water and the bottom water of the pond, and the sensor assembly is linked to the aquaculture assembly for lifting or fixed on the base.
[0015] Preferably, the three-dimensional feeding system includes an agricultural drone, which delivers pelleted feed to the entire pond from the top.
[0016] Compared with existing technologies, the advantages of the intelligent three-dimensional aquaculture system and method for river crabs disclosed in this invention are as follows: the intelligent three-dimensional aquaculture system for river crabs can effectively utilize the middle and upper water layers, effectively increasing the yield per unit area; the aquaculture components of the intelligent three-dimensional aquaculture system for river crabs consist of multiple mutually separated net cages, which can effectively prevent fighting and cannibalism during the molting period of river crabs and improve the survival rate; the intelligent three-dimensional aquaculture system for river crabs monitors the aquaculture environment through an intelligent control system and drives the aquaculture components to automatically lift and lower to avoid danger through an electric lifting platform, enabling proactive physical avoidance of high-temperature heat damage; the intelligent three-dimensional aquaculture system for river crabs has a high degree of automation, more precise control, and lower maintenance costs; the intelligent three-dimensional aquaculture system for river crabs does not require underwater operations, saving manpower and making operation more convenient. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] like Figure 1 The diagram shown is a structural schematic of an intelligent three-dimensional aquaculture system for river crabs according to this application.
[0019] like Figure 2 The image shown is a top view of the net cage in the intelligent three-dimensional crab farming system.
[0020] like Figure 3 The image shown is a side view of the net cage in the intelligent three-dimensional crab farming system.
[0021] like Figure 4 The image shown is a bottom view of the net cage in the intelligent three-dimensional crab farming system. Detailed Implementation
[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0023] like Figure 1As shown, this application discloses an intelligent three-dimensional aquaculture system for river crabs, comprising an aquaculture component 1, an electric lifting platform 2, an intelligent control system 3, and a three-dimensional feeding system. The aquaculture component 1 consists of several net cages 10, and the electric lifting platform 2 is installed in a pond 4, with the aquaculture component 1 and the electric lifting platform 2 being connected by a transmission. The intelligent control system 3 includes an Internet of Things (IoT) control box 31 for controlling the working status of the electric lifting platform 2 and a sensor component installed in conjunction with the aquaculture component 1. The sensor component monitors environmental parameters in the pond and transmits them to the IoT control box. The IoT control box 31 controls the electric lifting platform 2 to drive the aquaculture component 1 to move up and down according to the environmental parameters. The three-dimensional feeding system feeds the crabs from the top of the pond 4, with some feed falling into the aquaculture component 1 for the crabs to eat, and some feed sinking to the bottom 40 for the crabs mixed in the pond to eat.
[0024] The intelligent three-dimensional aquaculture system for river crabs can effectively utilize the middle and upper layers of water in pond 4, effectively increasing the yield per unit area. The aquaculture component 1 consists of multiple separated net cages 10, which can effectively prevent fighting and cannibalism among river crabs during molting, thus improving the survival rate. The intelligent control system 3 monitors the aquaculture environment and drives the aquaculture component 1 to automatically lift and lower to avoid danger via the electric lifting platform 2, enabling proactive physical avoidance of high-temperature heat damage. The intelligent three-dimensional aquaculture system for river crabs does not require underwater operations, saving manpower and making operation more convenient.
[0025] Specifically, the electric lifting platform 2 includes a set of bases 20 with their bottoms driven into the pond bottom 40. Electric lifting drive devices 21 are fixedly installed on the bases 20. Each electric lifting drive device 21 is connected to both ends of a lifting frame 22 via stainless steel ropes 211. The aquaculture component 1 is installed at the bottom of the lifting frame 22. The electric lifting drive device 21 is electrically connected to an IoT control box 31, which controls the operating status of the electric lifting drive device 21.
[0026] The base 20 is made of galvanized steel pipe or cement pile to provide stable support.
[0027] The electric lifting drive device 21 is preferably an electric rotary rod drive device, which winds or releases the stainless steel rope 211 during rotation to drive the lifting frame 22 to rise or fall. The electric lifting drive device 21 has a power-off self-locking function to prevent the aquaculture component 1 from falling due to accidental power failure.
[0028] Furthermore, the base 20 has a guide structure on the side facing the lifting frame 22, and both ends of the lifting frame 22 are respectively connected to the guide structure. The base 20 forms the lifting track of the lifting frame 22, which restricts the horizontal displacement of the lifting frame 22 in the water flow and waves, prevents the aquaculture component 1 from shaking or overturning significantly, and ensures the stability of aquaculture.
[0029] The net cages 10 are fixedly connected by corrosion-resistant nylon ropes or special connecting buckles, and multiple net cages 10 are connected laterally to form an aquaculture component 1.
[0030] See Figures 2 to 4 The net cage 10 is a rectangular box with a lid 101 on top, an array of side mesh holes 1001 around its perimeter, an array of bottom mesh holes 1002 on its bottom, and an array of lid mesh holes 1011 on its lid. The side mesh holes 1001 and lid mesh holes 1011 are both 2cm x 2cm in diameter, ensuring efficient water exchange and allowing feed to fall into the net cage 10. The bottom mesh holes 1002 are 4mm x 4mm in diameter, ensuring that pelleted feed with a diameter of 5mm or more remains firmly attached to the mesh surface.
[0031] One side of the cover 101 is connected to the net cage 10 via a hinge 103, and the other side is connected to the net cage 10 via a self-locking buckle 102 to prevent the crabs from bumping into it and to facilitate manual lifting of the cover for releasing, catching and cleaning dead crabs.
[0032] The preferred wire mesh cage 10 is a rectangular cage with dimensions of approximately 30cm × 30cm × 20cm. The cage 10 is injection molded from low-cost, corrosion-resistant, and aging-resistant food-grade polypropylene (PP) or polyethylene (PE), balancing strength and cost. The frame thickness of the cage 10 is ≥3mm to prevent impact deformation.
[0033] The intelligent control system 3 also includes a remote terminal 32, which is communicatively connected to the IoT control box 31. Parameters monitored and collected by the sensor components are sent to the remote terminal 32 via the IoT control box 31, facilitating real-time monitoring and timely adjustments by management personnel. The IoT control box 31 can be set with temperature and dissolved oxygen ranges, and controls the raising and lowering of the aquaculture component 1 through data feedback. For example, when the sensor components detect a surface water temperature greater than 34℃, the electric lifting drive device 21 is automatically instructed to lower the aquaculture component 1 to the middle and lower water layers. When the surface water temperature drops to a suitable range, such as below 30℃ or when the set feeding time is reached, the aquaculture component 1 is controlled to float to 10cm-20cm below the water surface or be completely exposed above the water surface.
[0034] An aerator can also be installed in pond 4. The aerator is connected to the Internet of Things control box 31. When the sensor components detect that the dissolved oxygen is too low or the ammonia nitrogen exceeds the standard, the Internet of Things control box 31 will automatically alarm and control the aerator to start.
[0035] The sensor assembly includes a temperature sensor and a dissolved oxygen sensor respectively arranged in the surface water and bottom water of the pond 4. The sensor assembly is linked to the aquaculture assembly 1 and is raised or lowered or fixed on the base 20 to monitor the ambient temperature of the surface water and the bottom water.
[0036] The three-dimensional feeding system includes agricultural drones, which deliver pelleted feed to the entire pond from the top of pond 4, enabling intelligent and precise delivery.
[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A smart three-dimensional aquaculture system for river crabs, characterized in that, The system includes aquaculture components, an electric lifting platform, an intelligent control system, and a three-dimensional feeding system. The aquaculture components consist of several net cages. The electric lifting platform is installed in the pond, and the aquaculture components are connected to the electric lifting platform via a transmission mechanism. The intelligent control system includes an IoT control box that controls the working status of the electric lifting platform and a sensor assembly installed in conjunction with the aquaculture components. The sensor assembly monitors environmental parameters in the pond and transmits them to the IoT control box. The IoT control box controls the electric lifting platform to drive the aquaculture components to move up and down based on the environmental parameters. The three-dimensional feeding system feeds the aquaculture components from the top of the pond.
2. The intelligent three-dimensional aquaculture system for river crabs as described in claim 1, characterized in that, Multiple net cages are connected laterally to form the aquaculture assembly.
3. The intelligent three-dimensional aquaculture system for river crabs as described in claim 1, characterized in that, The cage has a lid on top, an array of side mesh holes around its perimeter, an array of bottom mesh holes at the bottom, and an array of lid mesh holes on the lid.
4. The intelligent three-dimensional aquaculture system for river crabs as described in claim 3, characterized in that, The side mesh and the lid mesh are both 2cm×2cm in diameter, and the bottom mesh is 4mm×4mm in diameter.
5. The intelligent three-dimensional aquaculture system for river crabs as described in claim 3, characterized in that, One side of the cover is connected to the net cage via a hinge, and the other side is connected to the net cage via a self-locking buckle.
6. The intelligent three-dimensional aquaculture system for river crabs as described in claim 3, characterized in that, The cage is made of food-grade polypropylene or polyethylene injection molding, and the cage frame thickness is ≥3mm.
7. The intelligent three-dimensional aquaculture system for river crabs as described in claim 1, characterized in that, The electric lifting platform includes a set of bases with their bottoms driven into the bottom of the pond. Electric lifting drive devices are fixedly installed on the bases. The electric lifting drive devices are connected to both ends of a lifting frame via stainless steel ropes. The aquaculture components are installed at the bottom of the lifting frame. The electric lifting drive devices are electrically connected to the Internet of Things (IoT) control box, which controls the working status of the electric lifting drive devices.
8. The intelligent three-dimensional aquaculture system for river crabs as described in claim 1, characterized in that, The intelligent control system includes a remote terminal, which is communicatively connected to the IoT control box. The parameters monitored and collected by the sensor components are sent to the remote terminal via the IoT control box.
9. The intelligent three-dimensional aquaculture system for river crabs as described in claim 7, characterized in that, The sensor assembly includes a temperature sensor and a dissolved oxygen sensor respectively arranged in the surface water and the bottom water of the pond. The sensor assembly is linked to the aquaculture assembly and is raised or lowered or fixed on the base.
10. The intelligent three-dimensional aquaculture system for river crabs as described in claim 1, characterized in that, The three-dimensional feeding system includes an agricultural drone, which delivers pelleted feed to the entire pond from the top.
Citation Information
Patent Citations
Hairy crab three-dimensional breeding method
CN112273302A
Three-dimensional breeding frame for river crabs
CN214677196U
Novel three-dimensional river crab breeding device
CN216650983U