Monitoring mechanism for eel fry breeding

By designing a monitoring device for eel fry farming, the water temperature is monitored in real time and birds are driven away, which solves the problems of low water temperature control accuracy and bird protection in large-scale aquaculture, and improves the survival rate of eel fry and farming efficiency.

CN224034706UActive Publication Date: 2026-03-24CHANGLE JUQUAN FOOD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-19
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

In large-scale eel fry farming, the low precision of water temperature control and the inability to effectively drive away birds when fish congregate during oxygenation lead to significant losses in fry farming.

Method used

Design a monitoring mechanism including a float, a support rod, a controller, a photovoltaic panel, a bird-attracting bracket, a pressure sensing component, and a temperature sensor. By monitoring the water temperature in real time and emitting bird-repelling sound signals, combined with power supply from the photovoltaic panel, it can achieve precise water temperature control and bird deterrence.

Benefits of technology

It improves the precision of water temperature control, reduces predation losses of fish fry by birds, increases the survival rate and farming efficiency of eel fry, and has a reasonable structural design that is both environmentally friendly and energy-saving.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a monitoring mechanism for eel fry culture, which comprises a buoy, a shaping plate arranged at the position of the buoy, a supporting rod arranged above the shaping plate, a controller and a photovoltaic panel arranged on the supporting rod, an elastic bearing piece and a pressure sensing assembly arranged between the supporting rod and the shaping plate, and a bird luring support arranged on the outer side of the photovoltaic panel. The pressure sensing assembly is used for detecting whether birds stop on the young bird support or not, and the controller is provided with a broadcasting module associated with detection signals of the pressure sensing assembly; a connecting rope is arranged in the supporting rod, a temperature sensor used for detecting the water temperature of the threshold depth is arranged on the connecting rope, a balancing weight is connected to the bottom of the connecting rope, and the temperature sensor, the pressure sensing assembly and the photovoltaic panel are electrically connected with the processor. The device is beneficial for solving the problems that the water temperature control precision is low when some eel fries are bred in a large-water-surface fish pond at present, and birds cannot be effectively repelled in a fish school gathering area during oxygenation.
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Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, and in particular to a monitoring device for eel fry farming. Background Technology

[0002] Eel fry are the young eel larvae. Due to the rich nutrition and high aquaculture value of eels, more and more farmers are artificially breeding and raising them as demand increases. In the process of eel fry farming, breeding ponds are mostly used. In order to stabilize the water body, ponds with a large water surface are often selected. Temperature sensing equipment and water exchange equipment are installed in the breeding ponds to make eel fry farming more standardized and improve the survival rate. While larger ponds are beneficial for maintaining stable water quality, they also have some drawbacks. For example, surface water temperature is significantly affected by external environmental factors such as sunlight. The larger water surface increases the difficulty of protecting birds. Water temperature needs to be maintained within a safe range to promote the growth of eel fry. If the temperature is too high, appropriate aeration is required. However, the aeration process using aerators can easily cause fish to gather, leading to birds preying on the fry in large numbers within the aerated area. Currently, the industry often relies on the breeding experience of staff and simple manual near-shore water temperature detection for water temperature control. This method has low temperature control accuracy. Furthermore, due to the difficulty of covering birds with protective nets on large water surfaces, there are no relatively effective means of deterring them, resulting in significant losses in fry farming. Utility Model Content

[0003] This invention provides a monitoring device for eel fry farming, which helps to solve the problems of low water temperature control accuracy and inability to effectively drive away birds when eel fry are farmed in large-scale fish ponds.

[0004] This utility model is implemented as follows:

[0005] A monitoring device for eel fry farming includes a float with a central hole in the middle, a shaping plate surrounding the central hole, a horizontal end face on the top of the shaping plate, a vertical support rod above the shaping plate, a controller and a photovoltaic panel on the support rod, an elastic support and a pressure sensing component between the support rod and the shaping plate, and a bird-attracting bracket for birds to perch on the outside of the photovoltaic panel. The pressure sensing component is used to detect whether birds are perched on the bird-attracting bracket. The controller has a broadcast module that is associated with the detection signal of the pressure sensing component, and the broadcast module can emit a bird-repelling sound signal under a threshold condition. A connecting rope passing through the central hole is installed inside the support rod, and a temperature sensor for detecting the water temperature at a threshold depth is installed on the connecting rope. A counterweight is connected to the bottom of the connecting rope. The temperature sensor, pressure sensing component, photovoltaic panel and processor are electrically connected.

[0006] Based on the above technical solution, the float includes an inner plate, and an outer plate is detachably connected to the periphery of the inner plate.

[0007] Based on the above technical solution, the outer disk is composed of several floating parts, and each floating part is detachably connected to simulated grass near the outer edge.

[0008] Based on the above technical solution, the artificial grass is located at least below the bird-attracting bracket.

[0009] Based on the above technical solution, the bottom of the support rod is provided with a base plate, the bottom of the base plate has a horizontal end face structure, and a support spring is abutted between the base plate and the plastic plate. The support spring can extend and retract in the longitudinal direction. The pressure sensing component includes a pressure sensor fixed to the bottom end face of the base plate and a pressure plate fixed to the plastic plate directly below the pressure sensor. When a bird exceeding the threshold weight rests on the bird attractor bracket, it will compress the support spring, and the pressure plate will abut against the pressure sensor.

[0010] Based on the above technical solution, several pressure sensing components are evenly distributed between the base plate and the shaping plate.

[0011] Based on the above technical solution, a universal connector is provided at the connection between the counterweight and the connecting rope.

[0012] Based on the above technical solution, the inner disk is a circular disk structure, the outer disk is composed of several arc plates, and the outer disk and the inner disk are connected by several insert rods.

[0013] Based on the above technical solution, the bird-attracting bracket and the photovoltaic panel are connected by a detachable structure.

[0014] Compared with the prior art, the present invention has at least the following advantages:

[0015] 1. The temperature sensor of this invention can accurately detect the water temperature at a specific depth in the aquaculture pond in real time and transmit the detection signal to the controller. The controller can monitor and regulate the water temperature in real time according to a preset safe water temperature range. When the water temperature exceeds the safe range, the controller can issue an alarm in a timely manner and control relevant equipment, such as aerators, heating equipment, or refrigeration equipment, through external remote communication technology to perform corresponding operations to ensure that the water temperature is always maintained within a suitable range for eel fry growth. Compared with the traditional method of relying on the aquaculture experience of staff and simple manual detection of near-shore water temperature, the water temperature control accuracy of this invention is greatly improved, which can better meet the water temperature requirements for eel fry growth and improve the survival rate of eel fry.

[0016] 2. This invention overcomes the conventional thinking of bird-repelling technology. The bird-attracting bracket can attract birds to perch on it. When birds exceeding a certain weight perch on the bracket, the pressure sensor component detects this and transmits a signal to the controller. The controller then controls the broadcast module to emit bird-repelling sound signals, effectively driving away birds and reducing their predation on fish fry. This method is highly suitable for bird-repelling needs requiring fixed locations and areas, requires no manual intervention, and can work continuously and effectively, greatly reducing losses to fish fry from birds and improving aquaculture efficiency.

[0017] 3. The monitoring mechanism of this utility model has a reasonable overall structural design, with close cooperation between all components. The design of the float ensures the stability of the monitoring mechanism on the water surface; the elastic support component and pressure sensing assembly between the support rod and the plastic plate can accurately detect the resting status of birds; the design of the connecting rope and counterweight ensures the accurate position of the temperature sensor in the water; the photovoltaic panel provides reliable power support for the entire monitoring mechanism. At the same time, the detachable connection structure between the various components facilitates installation, disassembly and maintenance, improving the reliability and service life of the monitoring mechanism.

[0018] 4. This utility model uses photovoltaic panels to convert solar energy into electrical energy, providing power support for various components in the monitoring mechanism, thus achieving the goal of energy conservation and environmental protection. Compared with the traditional method of using batteries or external power sources, the photovoltaic panel power supply method eliminates the need for frequent battery replacements or external power connections, reducing operating costs and environmental pollution. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a simplified structural diagram of a monitoring device used for eel fry farming.

[0021] Figure 2 for Figure 1 Schematic diagram of the installation location of the bird-attracting bracket;

[0022] Figure 3 for Figure 1 Top view of the structure of the buoy;

[0023] Figure 4 for Figure 1 A partial structural diagram of the connection between the central support rod and the float;

[0024] Figure 5 for Figure 4 Schematic diagram showing the positions of the pressure sensor and the pressure plate;

[0025] Figure 6 for Figure 1 A partial structural diagram of the connection between the connecting rope and the counterweight.

[0026] The diagram is labeled as follows: 100, float; 110, inner plate; 111, central hole; 112, shaping plate; 113, pressure plate; 120, outer plate; 130, insertion rod; 140, slot; 150, artificial grass; 200, support rod; 210, base plate; 211, pressure sensor; 220, supporting spring; 300, processor; 400, photovoltaic panel; 410, bird attractant bracket; 500, connecting rope; 510, temperature sensor; 520, counterweight; 530, universal connector. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0028] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0031] Combination Figures 1 to 6 This embodiment discloses a monitoring device for eel fry farming, aiming to solve the problems of low water temperature control accuracy and ineffective deterrence of birds and fowl in areas where eel fry congregate during aeration when farming in large-scale fish ponds. This monitoring device can monitor the water temperature of the farming pond in real time and accurately, and take corresponding measures based on the water temperature; at the same time, it can effectively deter birds and fowl, reduce predation on the eel fry, and improve the survival rate and farming efficiency of the eel fry.

[0032] like Figure 1 As shown, the monitoring mechanism for eel fry farming in this embodiment mainly includes components such as float 100, support rod 200, controller, photovoltaic panel 400, bird attractant bracket 410, pressure sensing component, temperature sensor 510, connecting rope 500 and counterweight 520.

[0033] Among them, combined Figure 3 As shown, the float 100 has a central hole 111 with a longitudinal through-hole structure in the middle. A shaping plate 112 is located around the central hole 111, and the top of the shaping plate 112 has a horizontal end face structure. The float 100 is specifically made of foam board, and its function is to enable the entire monitoring mechanism to float on the water surface and maintain a stable position. The design of the shaping plate 112 increases the stability and structural strength of the float 100, preventing it from tilting or capsizing in the water.

[0034] Furthermore, the float 100 includes an inner disk 110, to which an outer disk 120 is detachably connected. This detachable connection design facilitates the installation, disassembly, and maintenance of the float 100. When a component is damaged, it can be easily replaced without replacing the entire float 100. The specifications of the float 100 can also be flexibly selected according to the weight of the actual photovoltaic panel 400 and other upper structures to meet buoyancy requirements.

[0035] Furthermore, the outer plate 120 consists of two floating components. Each floating component has a detachable connection to artificial grass 150 near its outer edge. A slot 140 is located near the outer edge of the top of each floating component, used to insert the base of the artificial grass 150, allowing for detachment and facilitating subsequent maintenance and replacement of the artificial grass 150. The artificial grass 150 provides a degree of concealment and aesthetic appeal, while also providing a habitat for small organisms, increasing the biodiversity of the aquaculture pond. Moreover, the artificial grass 150 is positioned at least below the bird-attracting bracket 410, simulating shoreline vegetation in a natural environment, further enhancing the practicality of the bird-attracting bracket 410, attracting more birds to perch on it, and enabling controlled, targeted placement of young birds, thus facilitating subsequent bird deterrence.

[0036] like Figure 3 As shown, the inner disc 110 has a circular structure, and the outer disc 120 consists of two arc-shaped plates. The outer disc 120 is connected to the inner disc 110 via several insert rods 130. This connection method is simple and reliable, ensuring the overall stability of the float 100.

[0037] The support rod 200, positioned above the shaped plate 112, is a vertical hollow tubular structure. A controller and a photovoltaic panel 400 are mounted on the support rod 200. The controller serves as the control center of the entire monitoring mechanism, responsible for receiving and processing signals from various sensors and controlling the operation of corresponding equipment according to a preset program. The photovoltaic panel 400 converts solar energy into electrical energy, providing power to various components within the monitoring mechanism and achieving energy conservation and environmental protection.

[0038] An elastic support and a pressure sensing component are provided between the support rod 200 and the molded plate 112. The elastic support serves as a buffer and support, ensuring the stability of the support rod 200. The pressure sensing component is used to detect whether birds are perched on the bird attractant bracket 410.

[0039] Specifically, in combination Figure 4 and Figure 5 As shown, the support rod 200 has a base plate 210 at its bottom, which has a horizontal end face structure. A support spring 220 abuts between the base plate 210 and the shaping plate 112, and the support spring 220 can extend and retract longitudinally. The pressure sensing assembly includes a pressure sensor 211 fixed to the bottom end face of the base plate 210, and a pressure plate 113 fixed to the shaping plate 112 directly below the pressure sensor 211. When a bird exceeding a threshold weight rests on the bird attractor bracket 410, the bird's weight is transferred to the base plate 210 through the support rod 200, thereby compressing the support spring 220 and causing the pressure plate 113 to abut against the trigger pressure sensor 211. In this way, the bird's resting status can be accurately detected.

[0040] Furthermore, several pressure sensing components are evenly distributed between the base plate 210 and the molding plate 112. This evenly distributed design can improve the accuracy and reliability of detection and avoid detection errors caused by the failure of a single pressure sensing component.

[0041] Combination Figure 2 As shown, a bird-attracting bracket 410 is provided on the outer side of the photovoltaic panel 400 for birds to perch on. The function of the bird-attracting bracket 410 is to attract birds to perch, thereby providing a detection target for the pressure sensing component. At the same time, the bird-attracting bracket 410 and the photovoltaic panel 400 are connected by a detachable structure (achieved through a threaded connection structure or a pin-and-buckle connection structure), which facilitates its installation, disassembly, and replacement.

[0042] In this embodiment, the controller specifically adopts a PLC controller and has a broadcast module that is associated with the pressure sensing component to detect signals. When the pressure sensing component detects that birds are perched on the bird-attracting bracket 410 and the weight exceeds a threshold, the controller will control the broadcast module to emit a bird-repelling sound signal. This sound signal can be a simulated raptor call, alarm sound, etc., which can effectively drive away birds and reduce birds' predation on fish fry.

[0043] Additionally, a connecting rope 500 passing through the central hole 111 is installed inside the support rod 200. A temperature sensor 510 for detecting water temperature at a threshold depth is mounted on the connecting rope 500. The temperature sensor 510 can be fixed at a specific depth position via the connecting rope 500, enabling the detection of water temperature at different depths. The temperature sensor 510 can detect the water temperature in real time and accurately, and transmit the detection signal to the controller.

[0044] A counterweight 520 is connected to the bottom of the connecting rope 500. The function of the counterweight 520 is to ensure that the connecting rope 500 and the temperature sensor 510 remain vertical in the water, so as to prevent the position of the temperature sensor 510 from shifting due to factors such as water flow, which would affect the accuracy of the detection results.

[0045] Furthermore, a universal connector 530 is provided at the connection between the counterweight 520 and the connecting rope 500. The universal connector 530 allows the connecting rope 500 to rotate freely within a certain range, reducing damage to the connecting rope 500 and temperature sensor 510 caused by factors such as water flow impact, and improving the reliability and service life of the monitoring mechanism.

[0046] Temperature sensor 510, pressure sensing component, photovoltaic panel 400, and processor 300 (processing unit in the controller) are electrically connected. Temperature sensor 510 and pressure sensing component transmit detected signals to processor 300. Processor 300 processes and analyzes these signals according to a preset program and controls the operation of the corresponding equipment. Photovoltaic panel 400 provides power to the entire monitoring mechanism, ensuring the normal operation of all components. It should be noted that temperature sensor 510, pressure sensing component, photovoltaic panel 400, and processor 300 are existing technologies; their specific structures and working principles will not be detailed here. Those skilled in the art can select and implement them from existing technologies based on actual operating conditions.

[0047] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A monitoring device for eel fry farming, characterized in that, The system includes a float (100), a central hole (111) with a longitudinal through-hole structure in the middle of the float (100), a shaping plate (112) surrounding the central hole (111) on the float (100), the top of the shaping plate (112) having a horizontal end face structure, a vertical support rod (200) above the shaping plate (112), a controller and a photovoltaic panel (400) on the support rod (200), an elastic support and a pressure sensing component between the support rod (200) and the shaping plate (112), and a bird-attracting bracket (410) for birds to stand and perch on the outside of the photovoltaic panel (400). The pressure sensing component is used to detect whether birds are perched on the chick support. The controller has a broadcast module that is associated with the detection signal of the pressure sensing component. The broadcast module can emit a bird-repelling sound signal under threshold conditions. The support rod (200) is provided with a connecting rope (500) passing through the central hole (111). The connecting rope (500) is provided with a temperature sensor (510) for detecting the water temperature at the threshold depth. The bottom of the connecting rope (500) is connected to a counterweight (520). The temperature sensor (510), the pressure sensing component, the photovoltaic panel (400) and the processor (300) are electrically connected.

2. The monitoring device for eel fry farming according to claim 1, characterized in that, The float (100) includes an inner plate (110) and an outer plate (120) is detachably connected to the outer periphery of the inner plate (110).

3. A monitoring device for eel fry farming according to claim 2, characterized in that, The outer disk (120) is composed of several floating parts, and each floating part is detachably connected to artificial grass (150) near the outer edge of its top.

4. A monitoring device for eel fry farming according to claim 3, characterized in that, The artificial grass (150) is located at least below the bird-attracting bracket (410).

5. A monitoring device for eel fry farming according to claim 1, characterized in that, The bottom of the support rod (200) is provided with a base plate (210), the bottom of the base plate (210) is a horizontal end face structure, and a support spring (220) abuts between the base plate (210) and the plastic plate (112). The support spring (220) can extend and retract in the longitudinal direction. The pressure sensing component includes a pressure sensor (211) fixed on the bottom end face of the base plate (210) and a pressure plate (113) fixed on the plastic plate (112) directly below the pressure sensor (211). When a bird exceeding the threshold weight rests on the bird attractor bracket (410), it will compress the support spring (220), and the pressure plate (113) will abut against the trigger pressure sensor (211).

6. A monitoring device for eel fry farming according to claim 5, characterized in that, Several pressure sensing components are evenly distributed between the base plate (210) and the shaping plate (112).

7. A monitoring device for eel fry farming according to claim 1, characterized in that, A universal connector (530) is provided at the connection between the counterweight (520) and the connecting rope (500).

8. A monitoring device for eel fry farming according to claim 2, characterized in that, The inner disk (110) has a circular structure, and the outer disk (120) is composed of several arc-shaped plates. The outer disk (120) and the inner disk (110) are connected by several insert rods (130).

9. A monitoring device for eel fry farming according to claim 1, characterized in that, The bird-attracting bracket (410) and the photovoltaic panel (400) are connected by a detachable structure.