A fishing device and method for use in multi-pond aquaculture environments

Abstract

This invention relates to a harvesting device and method for multi-pond aquaculture environments. The device includes a harvesting track and at least one set of track trolleys that can slide on the harvesting track, as well as at least one net with both ends hookable to the track trolleys, corresponding to the number of track trolley sets. The harvesting track includes multiple U-shaped tracks respectively set around the perimeter of multiple ponds; the harvesting track also includes multiple transition tracks, with adjacent U-shaped tracks connected by transition tracks. This invention addresses multi-pond aquaculture environments, enabling intelligent harvesting of any pond by sliding the track trolleys to the ends of the corresponding U-shaped track openings via transition tracks, according to harvesting needs. Specifically, through the design of the U-shaped track, the track trolleys can harvest aquatic products in the pond while sliding on both sides of the U-shaped track, and converge at the closed point of the U-shaped track to complete the harvest.

Description

Technical Field

[0001] This invention belongs to the field of fishing technology, specifically relating to a fishing device and method for use in multi-pond aquaculture environments. Background Technology

[0002] China is the world's largest producer and exporter of aquatic products, holding a vital position in the global aquaculture industry. For 32 consecutive years since 1989, China has ranked first in the world in aquatic product output, making it the world's largest fishing nation. In 2020, my country's aquatic product output reached 65.49 million tons, providing nearly one-third of the high-quality animal protein for urban and rural residents, playing a crucial role in ensuring national food security and improving the nutritional health of the entire population. In recent years, with economic development and the continuous improvement of people's living standards, the demand for aquatic products has been increasing, and pond aquaculture has become the main production method in the aquaculture industry.

[0003] By 2018, the total aquaculture output reached 49,910,590 tons, of which pond aquaculture accounted for 24,576,210 tons, or 49% of the total aquaculture output. Freshwater pond aquaculture output was 15,488,542 tons, accounting for 69.9% of the national freshwater aquaculture output. While the mechanization level of pond aquaculture in my country has steadily improved and the total amount of facilities and equipment has continued to grow, it is still generally in its initial and intermediate stages. There are imbalances and inadequacies in mechanization development across different regions, scales, and production stages. For example, harvesting and other stages still rely heavily on manual labor, and the effective supply of some technical equipment is insufficient.

[0004] Harvesting is a crucial step in aquaculture. In recent years, the development of aquaculture harvesting machinery has been rapid, but it has mainly focused on marine fishing. Currently, pond-farmed fish harvesting primarily relies on manual labor to pull steel wire ropes to retrieve nets, consuming significant labor and time costs, resulting in high labor intensity, low efficiency, and significant risks in the water. Large-volume commercial shrimp such as whiteleg shrimp and freshwater prawns are caught using methods like traps and large seine nets, all done manually. Currently, there is limited development and application of specialized pond harvesting machinery, mainly consisting of net lifting machines and fish suction pumps. Net lifting machines require lengthy preparation and training periods, and fish often cannot concentrate on feeding due to the net lifting from the pond bottom, leading to difficulties in harvesting. Fish suction pumps can cause significant damage to the fish's surface during use, rendering the caught fish unsellable and even causing death. Furthermore, this technology is costly and its application is not yet mature. The current scarcity of specialized pond harvesting machinery and the low level of mechanization, automation, and intelligence in the harvesting process represent a significant weakness in the mechanization of aquaculture.

[0005] In aquaculture, it is often necessary to separate different types of aquatic products into multiple ponds or to separate aquatic products of the same type but different sizes into multiple ponds. For example, Chinese invention patent application number CN202211106014.2 discloses an aquaculture system and aquaculture harvesting method, including a first fishpond, a second fishpond, a third fishpond, a fishing pond, and an intermediate channel. The ponds are arranged in a straight line, and adjacent ponds are connected by the intermediate channel. Fish-transfer devices are installed in the first, second, and third fishponds, and adult fish harvesting devices are installed in the fishing pond. The fishing pond of this invention has the advantages of simple operation and mechanical assistance in harvesting, which greatly saves manpower. Moreover, the fishing pond is connected to the third fishpond, ensuring that the fish entering the fishing pond are basically of adult size, which greatly improves the quality of the catch, reduces the burden of subsequent sorting, and helps to increase the overall aquaculture revenue of the fishpond system. However, this system can only harvest fish in the fishing pond and cannot perform intelligent harvesting in any individual fishpond. Summary of the Invention

[0006] To address the aforementioned problems in the existing technology, the present invention provides a fishing device and method for multi-pond aquaculture environments. The present invention enables intelligent fishing in any pond according to fishing needs in multi-pond aquaculture environments.

[0007] The present invention adopts the following technical solution:

[0008] The first aspect of the present invention provides a fishing device for a multi-pond aquaculture environment, including a fishing track and at least one set of track trolleys that can slide on the fishing track, and at least one net that can be hooked to the track trolleys at both ends, corresponding to the number of track trolleys.

[0009] The fishing track includes multiple U-shaped tracks respectively set around the perimeter of multiple ponds;

[0010] The fishing track also includes multiple transition tracks, with adjacent U-shaped tracks connected by transition tracks.

[0011] As a preferred option, the track trolley includes a control platform;

[0012] The control platform is used to control the sliding position and sliding power of the track trolley on the fishing track.

[0013] As a preferred option, the track trolley is equipped with a tension sensor, which is connected to the control platform. The control platforms of the two track trolleys in the same group are connected for communication.

[0014] The control platform is used to control the sliding position of the track trolley on the fishing track according to the input fishing requirements, and to control the sliding power of the track trolley according to the tension detection values ​​of the two tension sensors in the same group of track trolleys.

[0015] As a preferred solution, the rail trolley is further provided with a positioning module connected to the control platform;

[0016] The positioning module is used to position the rail trolley;

[0017] The control platform controls the sliding power of the rail trolley according to the tension detection values of the two tension sensors in the same group of rail trolleys and the positioning information of the two rail trolleys.

[0018] As a preferred solution, it further includes a remote control device connected to the control platform;

[0019] The remote control device is used to send corresponding control instructions to the control platform, and further remotely control the sliding position and sliding power of the rail trolley on the fishing track.

[0020] As a preferred solution, the net opening of the net gradually increases in the corresponding direction.

[0021] As a preferred solution, the rail trolley is provided with a towing shackle connected to the net.

[0022] As a preferred solution, both sides of the net are provided with upper fixed shackles and lower fixed shackles that can be connected to the towing shackle.

[0023] The second aspect of the embodiment of the present invention provides a fishing method for a multi-pond aquaculture environment, based on a fishing device for a multi-pond aquaculture environment provided in the first aspect of the embodiment, including the steps:

[0024] S1. Control at least one group of rail trolleys to slide on the fishing track so that the rail trolley pair slides to both ends of the U-shaped track opening corresponding to the corresponding pond;

[0025] S2. Control the rail trolley pair to slide from the U-shaped track opening to the U-shaped track closing position until the rail trolley pair slides to the middle position of the U-shaped track closing position to complete the fishing of the pond;

[0026] S3. Loop through steps S1 to S2 to complete the fishing of all ponds.

[0027] As a preferred solution, when executing step S2, it is judged in real time whether the tension detected by the tension sensor on the rail trolley exceeds the preset threshold. If it exceeds the threshold, return to step S1 to increase the number of rail trolley pairs sliding to both ends of the U-shaped track opening corresponding to the pond.

[0028] The beneficial effects of the present invention are:

[0029] This invention addresses multi-pond aquaculture environments, enabling intelligent harvesting from any pond by using a transition track to slide a trolley to either end of the corresponding U-shaped track opening. Specifically, by setting up intersecting transition tracks between adjacent ponds, the trolley can be quickly moved after each pond's harvesting operation for subsequent fishing activities. This on-demand, flexible, and time-saving design significantly reduces labor costs. During harvesting, the trolley slides along the U-shaped track, harvesting aquatic life in the pond and converging at the closed end of the U-shaped track to complete the harvest.

[0030] Since adjacent U-shaped tracks are connected by transition tracks, the track trolleys can be slid to the two ends of the corresponding U-shaped track openings in the pond according to the pond's fishing needs. Therefore, it is not necessary to set up a track trolley pair for each pond, which can reduce the number of track trolley pairs and lower the installation cost of the fishing device.

[0031] Because the distribution of aquatic products or sediment in the water is uneven during the fishing process, the nets are subjected to uneven forces. As a result, the tension on the track trolleys varies during the sliding process. In order to ensure the dynamic balance of the track trolleys on both sides of the U-shaped track during the fishing process and to avoid the nets tilting, which would lead to poor aquatic product fishing results, the track trolleys are equipped with tension sensors. The tension sensors are connected to the control platform. The control platform controls the sliding power of the track trolleys based on the tension detection values ​​of the two tension sensors in the same group of track trolleys.

[0032] The track trolley is also equipped with a positioning module. The control platform controls the sliding power of the track trolley based on the tension detection values ​​of the two tension sensors in the same group of track trolleys and the positioning information of the two track trolleys. This further ensures the dynamic balance of the track trolleys on both sides of the U-shaped track during the fishing process, and avoids the net from tilting, which would result in poor aquatic fishing results.

[0033] If all the openings of the nets are designed to be of a uniform size, then during the fishing process, the nets will naturally droop down, and the closer they are to the bottom of the pond, the smaller the size of the openings will be. This makes it easier to bring in impurities such as mud and sand, which will affect the fishing effect. Therefore, in this invention, the openings of the nets gradually increase in the corresponding directions. Attached Figure Description

[0034] 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.

[0035] Figure 1This is a schematic diagram of a fishing device for use in a multi-pond aquaculture environment according to an embodiment of the present invention.

[0036] Figure 2 This is a schematic diagram of the connection between the net and the track trolley.

[0037] Figure 3 This is a flowchart of a fishing method for a multi-pond aquaculture environment according to an embodiment of the present invention.

[0038] In the diagram: 1. Pond, 2. Net, 2.1. Upper fixed shackle, 2.2. Lower fixed shackle, 3. Track trolley, 4. Control platform, 5. Positioning module, 6. Drag shackle, 7. U-shaped track, 8. Transition track. Detailed Implementation

[0039] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0040] Example 1:

[0041] Reference Figure 1 As shown, this embodiment provides a fishing device for multi-pond aquaculture environments, including a fishing track and at least one set of track trolleys that can slide on the fishing track, and at least one net 2 corresponding to the number of track trolleys, with both ends hookable to the track trolleys. In this embodiment, the net uses a polyethylene diamond-mesh warp-knitted net to reduce abrasion to the fish. (Refer to...) Figure 2 As shown, the track trolley 3 is equipped with a drag shackle 6 that connects to the net 2. Both sides of the net 2 are equipped with an upper fixed shackle 2.1 and a lower fixed shackle 2.2 that can be connected to the drag shackle 6.

[0042] The fishing track includes multiple U-shaped tracks 7 respectively set around multiple ponds 1;

[0043] The fishing track also includes multiple transition tracks 8, with adjacent U-shaped tracks 7 connected by transition tracks 8.

[0044] This embodiment addresses a multi-pond aquaculture environment where, based on harvesting needs, a track trolley can be slid along a transition track 8 to either end of the opening of the corresponding U-shaped track 7 for intelligent harvesting in any pond 1. Specifically, by setting up intersecting transition tracks 8 between adjacent ponds 1, the track trolley 3 can be quickly moved after pond harvesting to facilitate subsequent harvesting operations. This system is readily available, flexible, and saves significant time and labor costs. During harvesting, the track trolley 3, through the design of the U-shaped track 7, harvests aquatic products in the pond while sliding along both sides of the U-shaped track 7, and converges at the closing point of the U-shaped track 7 to complete the harvest.

[0045] Since adjacent U-shaped tracks 7 are connected by transition tracks 8, the track trolleys can be slid to the two ends of the opening of the corresponding U-shaped track 7 according to the fishing needs of the pond. Therefore, it is not necessary to set up a track trolley pair for each pond, which can reduce the number of track trolley pairs and reduce the installation cost of the fishing device.

[0046] It should be noted that if there are nets 2 hooked on the track trolley 7 when changing ponds for fishing, they need to be removed in advance.

[0047] Specifically:

[0048] The track trolley 3 includes a control platform 4;

[0049] The control platform 4 is used to control the sliding position and sliding power of the track trolley 3 on the fishing track.

[0050] Users can input the location or number of the pond they want to fish in into the control platform 4, and the control platform 4 can then control the corresponding track trolley 3 to slide to the opening of the U-shaped track 7 corresponding to that pond.

[0051] Due to uneven distribution of aquatic products or sediment in the water during the fishing process, the net 2 experiences uneven stress. Consequently, the track trolley 3 experiences varying tension during its sliding motion. To ensure dynamic balance of the track trolleys 3 on both sides of the U-shaped track 7 during fishing and to prevent the net 2 from tilting, which would result in poor aquatic product harvesting, the track trolley 3 is equipped with a tension sensor. The tension sensor is connected to the control platform 4, and the control platform 4 is communicatively connected between the two track trolleys 3 in the same group.

[0052] The control platform 4 controls the sliding power of the track trolley 3 based on the tension detection values ​​of the two tension sensors in the same group of track trolleys.

[0053] Furthermore, the track trolley 3 is also equipped with a positioning module 5 connected to the control platform 4. In this embodiment, the positioning module 5 adopts the Beidou positioning system.

[0054] The positioning module 5 is used to position the track trolley 3.

[0055] The control platform 4 controls the sliding power of the track trolley 3 according to the tension detection values of the two tension sensors in the same group of track trolleys and the positioning information of the two track trolleys 3.

[0056] During the actual fishing process, the two track trolleys 3 are evenly stressed, but there is a position difference between the two track trolleys 3. Therefore, the fishing net 2 is still in an inclined state, resulting in poor fishing effect of aquatic products. Therefore, in this embodiment, the control platform 4 combines the tension detection values of the two tension sensors in the same group of track trolleys and the positioning information of the two track trolleys 3 to control the sliding power of the track trolley 3, further ensuring the dynamic balance of the track trolleys 3 on both sides of the U-shaped track 7 during the fishing process.

[0057] It should also be noted here that during the fishing process of the track trolley pair, it can also be judged in real time whether the tension detected by the tension sensor on the track trolley 3 exceeds the preset threshold. If it exceeds the threshold, the track trolley pair sliding to both ends of the opening of the corresponding U-shaped track 7 in the pond is increased. The same pond can be fished by two track trolley pairs at the same time. At this time, the upper fixed shackle 2.1 and the lower fixed shackle 2.2 on the fishing net 2 need to be hooked on the two track trolleys 3 respectively, or a set of shackles is added to both sides of the fishing net 2 for connecting with the track trolley 3. In this case, the control platforms 4 of the four track trolleys 3 can be set to be communicatively connected. The control platform 4 can control the sliding power of the track trolley 3 according to the tension detection values of the four tension sensors and the positioning information of the four track trolleys 3, thereby avoiding damage to the fishing net 2 due to excessive stress. Of course, only ensuring the communication within the same group of track trolley pairs can also basically ensure normal fishing.

[0058] In this embodiment, the two track trolleys 3 in the same group of track trolley pairs can be synchronously controlled through the control platform 4. When operating in ponds of different specifications, the track trolley 3 will perform adaptive adjustment to select an appropriate trawling speed. When operating in some irregular ponds 1, the track trolley 3 will adjust the trawling speed by itself to achieve trawling dynamic balance, thus ensuring the consistency of the trawling progress at both ends. At the same time, the control platform 4 can be connected to a remote control device, such as a mobile communication device, to remotely control the synchronous start and stop of the track trolley 3. The operation is simple and convenient, greatly reducing the number of operators, and making the operators more flexible during operation.

[0059] Furthermore, if the net openings of the fishing net 2 are all designed to be of the same size, during the fishing process, the fishing net naturally hangs down, and the closer it is to the bottom of the pond, the smaller the net opening size presented by the net opening. At this time, it is easy to bring in impurities such as sediment, increasing the trawling resistance of the track trolley 3 and thus affecting the fishing effect. Therefore, in the present invention, the net openings of the fishing net 2 gradually increase in the corresponding direction.

[0060] Embodiment 2:

[0061] Refer to Figure 3 As shown, this embodiment provides a fishing method for a multi-pond aquaculture environment. Based on the fishing device for a multi-pond aquaculture environment described in Embodiment 1, it includes the following steps:

[0062] S1. Control at least one set of rail trolleys to slide on the fishing rail so that the rail trolley pair slides to both ends of the opening of the U-shaped rail 7 corresponding to Pond 1.

[0063] S2. Control the rail trolley pair to slide from the opening of the U-shaped rail 7 towards the closed end of the U-shaped rail 7 until the rail trolley pair slides to the middle position at the closed end of the U-shaped rail 7 to complete the fishing of this Pond 1.

[0064] S3. Repeat steps S1 to S2 to complete the fishing of all Ponds 1.

[0065] Specifically:

[0066] When performing step S2, continuously judge whether the pulling force detected by the pulling force sensor on the rail trolley 3 exceeds the preset threshold. If it exceeds the threshold, return to step S1 to increase the number of rail trolley pairs sliding to both ends of the opening of the U-shaped rail 7 corresponding to this Pond 1.

[0067] It should be noted that the fishing method for a multi-pond aquaculture environment provided in this embodiment is similar to that in Embodiment 1 and will not be elaborated here.

[0068] The above-described embodiments are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope of the present invention.

Claims

1. A fishing device for use in multi-pond aquaculture environments, characterized in that, It includes a fishing rail and at least one set of rail trolleys that can slide on the fishing rail, and at least one net that can be hooked to the rail trolleys at both ends, corresponding to the number of sets of rail trolleys. The fishing track includes multiple U-shaped tracks respectively set around the perimeter of multiple ponds; The fishing track also includes multiple transition tracks, with adjacent U-shaped tracks connected by transition tracks; The track-mounted trolley includes a control platform; The control platform is used to control the sliding position and sliding power of the track trolley on the fishing track; The track trolley is equipped with a tension sensor, which is connected to the control platform. The control platforms of the two track trolleys in the same group are connected for communication. The control platform is used to control the sliding position of the track trolley on the fishing track according to the input fishing requirements, and to control the sliding power of the track trolley according to the tension detection values ​​of the two tension sensors in the same group of track trolleys. The track trolley is also equipped with a positioning module that connects to the control platform; The positioning module is used to locate the position of the track trolley; The control platform controls the sliding power of the track cars based on the tension detection values ​​of the two tension sensors in the same group of track cars and the positioning information of the two track cars.

2. A fishing device for use in a multi-pond aquaculture environment according to claim 1, characterized in that, It also includes remote control devices connected to the control platform; Remote control equipment is used to send corresponding control commands to the control platform, thereby remotely controlling the sliding position and sliding power of the track trolley on the fishing track.

3. The fishing device for multi-pond aquaculture environments according to claim 1, characterized in that, The mesh openings of the net gradually increase in the corresponding direction.

4. The fishing device for multi-pond aquaculture environments according to claim 1, characterized in that, The track trolley is equipped with a drag shackle that connects to the net.

5. A fishing device for use in a multi-pond aquaculture environment according to claim 4, characterized in that, Both sides of the net are equipped with upper and lower fixed shackles that can be connected to the drag shackles.

6. A method for harvesting in a multi-pond aquaculture environment, based on a harvesting device for a multi-pond aquaculture environment as described in any one of claims 1-5, characterized in that, Including the following steps: S1. Control at least one set of track trolleys to slide on the fishing track so that the track trolleys slide to both ends of the U-shaped track opening corresponding to the pond. S2. Control the track trolley to slide from the opening of the U-shaped track to the closing point of the U-shaped track until the track trolley slides to the middle position of the closing point of the U-shaped track to complete the harvesting in the pond; S3. Repeat steps S1 to S2 to complete the harvesting of all ponds.

7. A harvesting method for multi-pond aquaculture environments according to claim 6, characterized in that, When performing step S2, it is determined in real time whether the tension detected by the tension sensor on the track trolley exceeds the preset threshold. If it exceeds the threshold, the process returns to step S1 to increase the number of track trolley pairs that slide to both ends of the opening of the corresponding U-shaped track in the pond.

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