Underwater camera with space recognition function for river crab culture

By designing a support structure and drive components for the underwater camera, the problems of underwater cameras being attached to debris and collided with by organisms have been solved, enabling automatic cleaning and floating object obstruction, ensuring shooting quality and equipment integrity.

CN121924342APending Publication Date: 2026-04-24JIANGSU AGRI MASCH DEV & APPL CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU AGRI MASCH DEV & APPL CENT
Filing Date
2026-01-29
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing underwater cameras are prone to being attached to debris in the water when left submerged for extended periods, affecting image capture. Fixed cameras are also susceptible to damage from collisions with underwater organisms, and instant deployment is cumbersome and subject to limitations such as weather conditions.

Method used

An underwater camera with spatial recognition function was designed. It adopts a three-pillar structure, combined with a lifting drive component and a rotation drive component. The camera can sink underwater to take pictures when needed, and automatically rise after taking pictures to avoid prolonged static placement. At the same time, the power supply line swings and the agitator stirs the water through the turntable to prevent algae and duckweed from adhering. The float plate and baffle system block floating objects and ensure smooth raising and lowering of the camera.

Benefits of technology

The camera is designed to be unaffected by underwater debris during underwater filming, preventing damage. After filming, it automatically rises to clean itself, preventing algae and duckweed from adhering and ensuring a clear view. The float and baffle system effectively blocks floating objects, ensuring the camera functions normally.

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Abstract

The invention relates to the field of camera shooting equipment, in particular to a river crab culture underwater camera with a space recognition function, which comprises three supporting columns, a mounting plate, a camera and the like, all the supporting columns are jointly and fixedly connected with a mounting plate. The mounting plate is connected with a lifting driving assembly; the lifting driving assembly is connected with a camera. The camera sinks underwater when shooting is needed and leaves the water when shooting is not needed, the situation that shooting is affected due to the fact that the camera stands underwater for a long time and is attached by sundries in water and underwater plants adhere to and grow on the outer surface of the camera is avoided, meanwhile, the situation that the camera is damaged by underwater organisms is avoided, and in the ascending and descending processes of the camera, the camera is driven by the rotary disc, and the camera is driven by the rotary disc to move up and down. The power supply line and the camera swing to stir algae in water so that the algae do not adhere to the camera, and the water in the pond is stirred by means of the stirring blades, so that duckweeds on the water surface are pushed aside and do not adhere to the camera; the camera is effectively cleaned by means of pond water, and the situation that the view of the camera is affected due to adhesion of algae and duckweed is prevented.
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Description

Technical Field

[0001] This invention relates to the field of camera equipment, and more particularly to an underwater camera for crab farming with spatial recognition function. Background Technology

[0002] Crab farming mainly uses the Chinese mitten crab from the Yangtze River system, and it is cultivated through two main models: "intensive pond farming + lake propagation". During the farming process, underwater cameras can help farmers see the real situation in the pond, thereby accurately judging the amount of feed, water quality and the growth stage of the crabs. However, if existing underwater cameras are left underwater for a long time, they are easily attached to debris in the water, and underwater plants attach and grow on the surface of the camera, which will affect the recording. Also, fixed in the water, they are easily damaged by repeated collisions with underwater organisms. On the other hand, the operation of instant-deployable underwater cameras is cumbersome, requiring manual placement for each observation, and it is inconvenient for personnel to operate them outdoors due to weather or other reasons. Summary of the Invention

[0003] To overcome the shortcomings of fixed cameras, which are susceptible to underwater plant growth and obstruction when left submerged for extended periods, and the cumbersome operation and weather-dependent limitations of instant-deployment cameras, this invention provides an underwater camera for crab farming with spatial recognition capabilities.

[0004] Technical solution: An underwater camera for crab farming with spatial recognition function includes three support pillars; it also includes a mounting plate, a camera, a turntable, a lifting drive assembly, and a rotation drive assembly; all support pillars are fixedly connected to the mounting plate; the lifting drive assembly is connected to the mounting plate; the lifting drive assembly is connected to the camera; the lifting drive assembly controls the camera's ascent and descent; a turntable that drives the camera to swing is rotatably connected to the mounting plate; the lifting drive assembly is connected to the rotation drive assembly that drives the turntable to rotate; the lifting drive assembly passes through the turntable and is connected to the camera; a side plate is fixedly connected to the mounting plate; a cover plate is fixedly connected to the top of the side plate.

[0005] Furthermore, it is particularly preferred that the lifting drive assembly includes: a take-up roller, a motor, and a power supply line; the take-up roller is mounted on the mounting plate; the motor is mounted on the mounting plate; the motor output shaft is fixedly connected to the take-up roller to drive the take-up roller to rotate; the power supply line is wound on the take-up roller; a cable feed port is provided on the mounting plate; the power supply line passes through the cable feed port, then through the turntable and connects to the camera; the point where the power supply line passes through the turntable does not coincide with the center of the turntable.

[0006] Furthermore, it is particularly preferred that the rotation drive assembly includes: a toothed disc and a toothed ring; the toothed disc is fixedly connected to the take-up roller; the toothed ring is fixedly connected to the turntable; and the toothed disc and the toothed ring engage in transmission.

[0007] In addition, it is particularly preferred that it also includes agitators; the camera is equipped with several agitators for dispersing floating objects.

[0008] Furthermore, it is particularly preferred that the device also includes limit bars, floats, baffles, mounting rings, and rubber rods; two limit bars are fixedly connected to each support; floats and baffles for blocking floating objects are slidably connected between the limit bars arranged opposite each other on adjacent support columns; the baffles are located on the upper side of the floats; limit blocks are provided at the top and bottom of the limit bars; mounting rings are fixedly connected to the power supply line; and at least one rubber rod for moving the floats and baffles is fixedly connected to the mounting ring in a ring.

[0009] Furthermore, it is particularly preferred that the support column consists of a column and a plug threaded to the bottom of the column; the limiting strip is divided into corresponding lengths and fixed to the column and the plug.

[0010] Furthermore, it is particularly preferred that the insertion rod is a round rod with a beveled bottom.

[0011] In addition, it is particularly preferred that the device also includes a support frame, nylon cloth, and counterweights; each baffle has a support frame for supporting crabs fixed to the side facing away from the camera; each support frame has nylon cloth rolled up for the crabs to climb upwards; and each nylon cloth has a counterweight fixed to its end.

[0012] Furthermore, it is particularly preferred that each insertion rod has a slot for fixing the counterweight; the slot engages with the counterweight.

[0013] In addition, it is particularly preferred that the outside of the stake is wrapped with straw rope to facilitate the climbing of crabs.

[0014] The present invention has the following advantages: The present invention enables the camera to be submerged underwater when shooting is needed and to leave the water when not shooting, thus avoiding the camera being left underwater for a long time, which would cause it to be attached to debris or grow on the camera surface, affecting shooting. At the same time, it also avoids underwater organisms from damaging the camera. During the camera's ascent and descent, the turntable causes the power supply line and camera to swing, stirring up algae in the water to prevent them from adhering to the camera. Additionally, the stirring plate agitates the pool water, dispersing duckweed on the surface to prevent it from adhering to the camera. This effectively cleans the camera using the pool water and prevents algae and duckweed from adhering and affecting the camera's field of view. The invention uses floats and baffles to block large floating objects from approaching it, preventing them from affecting the camera's ascent and descent. The floats and baffles also change position with the water level using buoyancy, ensuring that they can completely block the approach of floating objects. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the support column, mounting plate, camera, and lifting drive assembly of the present invention; Figure 3 This is a three-dimensional structural diagram of the mounting plate, camera, lifting drive assembly, and rotation drive assembly of the present invention. Figure 4 This is a front view of the support column, mounting plate, camera, and turntable of the present invention; Figure 5 This is an exploded view of the support pillar of the present invention.

[0016] In the diagram: 1-support column, 101-upright column, 102-insertion rod, 103-slot, 2-mounting plate, 201-side plate, 202-cover plate, 203-feed port, 3-camera, 301-stirring plate, 4-turntable, 5-limiting strip, 61-floating plate, 62-baffle, 7-mounting ring, 701-rubber rod, 8-bearing frame, 9-nylon cloth, 10-counterweight, 21-winding roller, 22-motor, 23-power supply line, 24-gear disc, 25-gear ring. Detailed Implementation

[0017] 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.

[0018] Example 1: As Figures 1-5 As shown, an underwater camera 3 for crab farming with spatial recognition function includes three pillars 1 arranged in a ring. It also includes a mounting plate 2, a camera 3, a turntable 4, a lifting drive assembly, and a rotation drive assembly; all the support columns 1 are fixedly connected to the mounting plate 2; the lifting drive assembly is connected to the mounting plate 2; the lifting drive assembly is connected to the camera 3; the lifting drive assembly controls the camera 3 to rise and fall; the bottom surface of the mounting plate 2 is rotatably connected to the turntable 4; the lifting drive assembly is connected to the rotation drive assembly; the lifting drive assembly passes through the turntable 4 and is connected to the camera 3; a side plate 201 is fixedly connected to the mounting plate 2; a cover plate 202 is fixedly connected to the top of the side plate 201; the side plate 201 and the cover plate 202 provide enclosed protection for the lifting drive assembly and the rotation drive assembly; a handle for lifting and carrying the present invention is installed on the cover plate 202.

[0019] The lifting drive assembly includes: a take-up roller 21, a motor 22, and a power supply line 23; the take-up roller 21 is rotatably connected to the upper surface of the mounting plate 2; the motor 22 is on the upper surface of the mounting plate 2; the output shaft of the motor 22 is fixedly connected to the take-up roller 21, driving the take-up roller 21 to rotate; the power supply line 23 is wound on the take-up roller 21; the mounting plate 2 has a cable feed port 203; the power supply line 23 passes through the cable feed port 203, then through the turntable 4 and connects to the camera 3, supplying power to the camera 3 and driving it to rise or fall; the point where the power supply line 23 passes through the turntable 4 does not coincide with the center of the turntable 4.

[0020] The rotation drive assembly includes: a toothed disc 24 and a toothed ring 25; the toothed disc 24 is fixedly connected to the take-up roller 21; the toothed ring 25 is fixedly connected to the turntable 4; the toothed disc 24 and the toothed ring 25 mesh to drive the turntable 4 to rotate.

[0021] It also includes a stirring plate 301; three stirring plates 301 are installed in a ring on the camera 3.

[0022] It also includes limit strips 5, floats 61, baffles 62, mounting rings 7, and rubber rods 701; two limit strips 5 are fixedly connected to each support column 1; floats 61 and baffles 62 are slidably connected between the limit strips 5 arranged opposite each other on adjacent support columns 1; baffles 62 are located on the upper side of floats 61; floats 61 are foam boards; baffles 62 are transparent acrylic boards; limit blocks are provided at the top and bottom of the limit strips 5 to prevent floats 61 and baffles 62 from falling off; mounting rings 7 are fixedly connected to the power supply line 23 near the camera 3; three rubber rods 701 are fixedly connected to the mounting rings 7 in a ring.

[0023] The support column 1 consists of a column 101 and a rod 102; the column 101 and the rod 102 are connected by threads, and the overall length of the support column 1 can be quickly extended by increasing the number of columns 101; the limiting strip 5 is divided into corresponding lengths and fixed to the column 101 and the rod 102.

[0024] The insertion rod 102 is a round rod with a beveled bottom, which makes it easy to insert the insertion rod 102 into the mud at the bottom of the water.

[0025] The steps for using this invention are as follows: First, power the external power supply of the present invention. The user selects a suitable installation position and grasps the handle on the cover plate 202 to bring the present invention close to the water surface. Then, the motor 22 drives the winding roller 21 to rotate, releasing the power supply line 23, causing the camera 3 to sink into the water. During this process, the spatial recognition function of the camera 3 is activated. In conjunction with the sinking process of the camera 3, the water depth at the current position is calculated. Then, the winding roller 21 is controlled to rewind the power supply line 23, causing the camera 3 to rise and return to its original position. Based on the measured water depth, the corresponding number of columns 101 are selected and screwed together to extend the length of all the columns 1 to match the water depth. The insertion rod 102 is screwed onto the lowest column 101. Then, the column 1 is placed in the water until the insertion rod 102 is inserted into the mud at the bottom of the water, so that the present invention can be stably positioned in the current position without tipping over, and the current raised position of the camera 3 is higher than the water surface, thus completing the installation of the present invention.

[0026] When monitoring underwater crabs is required, the winding roller 21 is rotated to release the power supply line 23, and the camera 3 sinks into the water. After the camera 3 detects that it is close to the bottom, it will control the feedback motor 22 to stop working, thereby stopping the winding roller 21 from releasing the power supply line 23. The camera 3 stops sinking and is in a position close to the bottom. The probe of the camera 3 analyzes the current underwater environment, and the spatial recognition function detects living organisms in the vicinity. The probe of the camera 3 automatically rotates to track and shoot to monitor the growth of underwater crabs. When the growth of crabs is successfully captured and recorded, or when no crab activity is detected for more than 1 hour, the camera 3 sends a feedback signal to control the motor 22 to drive the winding roller 21 to wind up the power supply line 23, lifting the camera 3 back to its initial position and leaving the water. If crab activity has been recorded, the camera 3 will be controlled to sink again to shoot after 12 hours. If crab activity has not been recorded before, the camera 3 will be controlled to sink again to shoot after 1 hour.

[0027] When there is a lot of algae and duckweed on the surface of the aquaculture pond, during the sinking of camera 3, motor 22 drives take-up roller 21 to rotate. Take-up roller 21 drives toothed disc 24, toothed disc 24 drives toothed ring 25 and turntable 4 to rotate. Because the power supply line 23 does not coincide with the center of turntable 4 when it passes through turntable 4, the power supply line 23 is driven by the rotating turntable 4 as it is released downwards and passes through turntable 4, causing the power supply line 23 and camera 3 to swing. As camera 3 sinks, it stirs up the algae in the water, preventing them from adhering to camera 3. When camera 3 rises, turntable 4 rotates in the opposite direction, which also causes the power supply line 23 and camera 3 to swing. As camera 3 rises, algae do not adhere to camera 3. When camera 3 is close to the water surface, the swinging camera 3 stirs up the pond water with the help of stirring plate 301, which then pushes away the duckweed on the water surface, preventing it from adhering to camera 3 and obstructing the camera 3's field of vision.

[0028] Furthermore, to prevent large floating objects from approaching the invention after it is installed in the pond and affecting the raising and lowering of the camera 3, a float plate 61 and a baffle 62 are provided between every two adjacent support pillars 1. When the invention is first placed in the water, the buoyancy of the float plate 61 causes the baffle 62 to slide along the limiting strip 5, keeping the float plate 61 and the baffle 62 afloat on the water surface. The baffle 62 surrounds the camera 3 internally, preventing floating objects from approaching. When the camera 3 sinks, the power supply line 23 drives the mounting ring 7, causing the rubber... The rubber rod 701 contacts the upper side of the baffle 62 and presses the baffle 62 downward. After being pressed, the baffle 62 pushes the float 61 to sink into the water along the limiting strip 5. The deeper it sinks, the greater the buoyancy of the pool water on the float 61, which in turn creates resistance on the rubber rod 701 on the baffle 62, forcing the rubber rod 701 to bend and deform upward. Thus, as the camera 3 continues to move downward, the rubber rod 701 passes over the float 61 and the baffle 62, releasing the downward pressure on the baffle 62. Afterward, the float 61 and the baffle 62 float again under the action of buoyancy. Upon reaching the water surface, it prevents floating objects from approaching. As camera 3 moves upward, rubber rod 701 will press against the bottom of float plate 61, lifting float plate 61 and baffle 62 upward, causing float plate 61 and baffle 62 to move upward with camera 3 until baffle 62 moves to the top and is blocked by the limiting block of limiting strip 5, preventing it from moving further upward. Rubber rod 701, obstructed by float plate 61, will bend downward and deform, thus moving upward past float plate 61 and baffle 62. After rubber rod 701 passes baffle 62, float plate 61 loses its bottom support. The float plate 61 and the baffle 62 slide down along the limiting strip 5 together until they return to the water surface and float on the water surface, blocking floating objects from approaching. During the process of the rubber rod 701 lifting the float plate 61 and the baffle 62, the camera 3 will swing continuously as it rises, pushing the pool water away. As a result, when the float plate 61 and the baffle 62 are lifted, the floating objects on the water surface will not approach the camera 3. Until the camera 3 leaves the pool water, the float plate 61 and the baffle 62 will detach from the rubber rod 701 and return to the water surface, blocking the floating objects around them again.

[0029] Based on the above steps, we can see that the present invention has the following effects: When filming is needed, camera 3 is submerged underwater. When not filming, camera 3 is removed from the water to prevent camera 3 from being left underwater for a long time, which could cause it to be attached to debris or grow on its surface, affecting filming. At the same time, it can also prevent underwater creatures from damaging camera 3.

[0030] During the ascent and descent of camera 3, the turntable 4 causes the power supply line 23 and camera 3 to swing, stirring up the algae in the water so that they do not adhere to camera 3. The stirring plate 301 also stirs up the pool water, thus removing the duckweed on the surface of the water so that it does not adhere to camera 3. This effectively cleans camera 3 with the pool water and prevents algae and duckweed from adhering and affecting the field of view of camera 3.

[0031] The float plate 61 and the baffle plate 62 prevent large floating objects from approaching the invention, thus preventing them from affecting the rising and falling of the camera 3. The float plate 61 and the baffle plate 62 change position with the water level by means of the buoyancy of the water, ensuring that they can completely block the approach of floating objects.

[0032] Example 2: Based on Example 1, as follows Figure 1 As shown, it also includes a support frame 8, nylon cloth 9 and counterweight 10; each baffle 62 has a support frame 8 fixedly attached to the side facing away from the camera 3; each support frame 8 has a nylon cloth 9 wound up on one side by a torsion spring roller; and each nylon cloth 9 has a counterweight 10 fixedly attached to the end.

[0033] The operation steps for using this embodiment are as follows: Before placing the invention in water, the counterweight 10 is placed on the support frame 8. After placing the invention in water and fixing the insertion rod 102 into the bottom mud, the counterweight 10 is lifted and sank into the water along the adjacent support column 1. During the sinking of the counterweight 10, the nylon cloth 9 is pulled out from the torsion spring roller simultaneously. After the counterweight 10 sinks to the bottom, the nylon cloth 9 is pulled out into place. At this time, the nylon cloth 9 forms a channel between the bottom and the support frame 8, allowing crabs at the bottom to crawl upwards along the surface of the nylon cloth 9 (the surface of the nylon cloth 9 is rough, allowing the crabs' hook-like legs to climb). The crabs can eventually climb up the nylon cloth 9 to the upper surface of the support frame 8. Since the support frame 8 is connected to the baffle 62, it moves with the baffle 62. When the baffle 62 floats on the water surface under the buoyancy of the float 61, the crabs that have climbed onto the support frame 8 are out of the water. This allows the crabs to breathe air on the water surface when the oxygen content in the water is low on rainy days. At the same time, the crabs are out of the water and on the support frame 8, without the influence of underwater aquatic plants, turbid water quality and other factors. After the camera 3 is raised and lifted out of the water, the crabs on the support frame 8 can be directly observed to better understand the current growth of the crabs.

[0034] Example 3: Based on Examples 1 and 2, as follows Figure 1 and Figure 5 As shown, each insertion rod 102 has a slot 103 on its outer surface; the slot 103 engages with the counterweight 10.

[0035] The outer surface of the pole 102 is wrapped with straw rope, which allows the crab to climb up the pole 102 and move onto the nylon cloth 9 to continue climbing.

[0036] The operation steps for using this embodiment are as follows: Before placing the invention in water, the user grasps the counterweight 10 to pull out the nylon cloth 9, and then inserts the counterweight 10 into the slot 103 to fix the counterweight 10, thereby limiting the length and position of the nylon cloth 9. After placing the invention in water and fixing the insertion rod 102 into the bottom mud, the bottom of the nylon cloth 9 and the counterweight 10 follow and sink into the mud, making the nylon cloth 9 contact with the bottom mud. This facilitates the crabs to climb up the nylon cloth 9 onto the support frame 8 and leave the water for observation by the camera 3. At the same time, the counterweight 10, locked in the slot 103, restricts the nylon cloth 9, preventing the lower side of the nylon cloth 9 from being carried by the water flow and entangled in the support column 1 or underwater debris, thus hindering the crabs' crawling.

[0037] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. An underwater camera for crab farming with spatial recognition function, comprising three pillars (1); characterized in that, It also includes a mounting plate (2), a camera (3), a turntable (4), a lifting drive assembly and a rotation drive assembly; all the pillars (1) are fixedly connected to the mounting plate (2); the lifting drive assembly is connected to the mounting plate (2); the lifting drive assembly is connected to the camera (3); the lifting drive assembly controls the camera (3) to rise and fall; the turntable (4) that drives the camera (3) to swing is rotatably connected to the mounting plate (2); the lifting drive assembly is connected to the rotation drive assembly that drives the turntable (4) to rotate; the lifting drive assembly passes through the turntable (4) and is connected to the camera (3); a side plate (201) is fixedly connected to the mounting plate (2); a cover plate (202) is fixedly connected to the top of the side plate (201).

2. The underwater camera for crab farming with spatial recognition function according to claim 1, characterized in that, The lifting drive assembly includes: a take-up roller (21), a motor (22), and a power supply line (23); the take-up roller (21) is mounted on the mounting plate (2); the motor (22) is mounted on the mounting plate (2); the output shaft of the motor (22) is fixedly connected to the take-up roller (21) and drives the take-up roller (21) to rotate; the power supply line (23) is wound on the take-up roller (21); the mounting plate (2) has a cable feed port (203); the power supply line (23) passes through the cable feed port (203), then passes through the turntable (4) and connects to the camera (3); the point where the power supply line (23) passes through the turntable (4) does not coincide with the center of the turntable (4).

3. An underwater camera for crab farming with spatial recognition function according to claim 1, characterized in that, The rotation drive assembly includes: a toothed disc (24) and a toothed ring (25); the toothed disc (24) is fixedly attached to the take-up roller (21); the toothed ring (25) is fixedly attached to the turntable (4); the toothed disc (24) and the toothed ring (25) mesh and drive each other.

4. An underwater camera for crab farming with spatial recognition function according to claim 3, characterized in that, It also includes a stirring plate (301); the camera (3) is equipped with several stirring plates (301) for dispersing floating objects.

5. An underwater camera for crab farming with spatial recognition function according to claim 4, characterized in that, It also includes limit strips (5), floats (61), baffles (62), mounting rings (7) and rubber rods (701); two limit strips (5) are fixedly connected to each support (1); floats (61) and baffles (62) for blocking floating objects are slidably connected between the limit strips (5) arranged opposite to each other on adjacent support (1); the baffles (62) are located on the upper side of the floats (61); limit blocks are provided at the top and bottom of the limit strips (5); mounting rings (7) are fixedly connected to the power supply line (23); at least rubber rods (701) for driving the floats (61) and baffles (62) to move are fixedly connected in a ring on the mounting rings (7).

6. An underwater camera for crab farming with spatial recognition function according to claim 5, characterized in that, The support column (1) consists of a column (101) and a plug rod (102) threaded to the bottom of the column (101); the limiting strip (5) is divided into corresponding lengths and fixed to the column (101) and the plug rod (102).

7. An underwater camera for crab farming with spatial recognition function according to claim 6, characterized in that, The insert (102) is a round rod with a beveled surface at the bottom.

8. An underwater camera for crab farming with spatial recognition function according to claim 6, characterized in that, It also includes a support frame (8), nylon cloth (9) and a counterweight (10); each baffle (62) has a support frame (8) for carrying crabs fixed to the side facing away from the camera (3); each support frame (8) has a nylon cloth (9) rolled up for the crabs to climb up; each nylon cloth (9) has a counterweight (10) fixed to the end.

9. An underwater camera for crab farming with spatial recognition function according to claim 8, characterized in that, Each insertion rod (102) has a slot (103) for fixing the counterweight (10); the slot (103) engages with the counterweight (10).

10. An underwater camera for crab farming with spatial recognition function according to any one of claims 6-9, characterized in that, The outside of the pole (102) is wrapped with grass ropes to facilitate the climbing of crabs.