Device for automatically acquiring multi-scene multi-turbidity underwater image

Abstract

The invention relates to the technical field of image acquisition, and discloses a device for automatically acquiring multi-scene multi-turbidity underwater images, which comprises a box body for injecting clear water; the titration mechanism is used for dripping a solvent into the clear water in the box body; the stirring mechanism comprises a driving device arranged in the box body and a mounting disc connected with the output end of the driving device, an assembly part is arranged in the mounting disc, a plurality of blades are rotatably arranged on the assembly part at equal intervals in the circumferential direction, and bubble guide grooves are formed in the blades; the turbidity measuring device is arranged at the bottom in the box body; the waterproof electronic screen is arranged at the bottom of the box body; the fixing mechanism is arranged above the waterproof electronic screen, the fixing mechanism is used for being detachably connected with the camera, clear water and a solvent can be rapidly mixed, time consumption is effectively reduced, the problem that the solvent is inaccurately dripped manually is effectively solved, and the turbidity control efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of image acquisition, and in particular to a device for automatically acquiring multi-scene and multi-turbidity underwater images. Background Art

[0002] Underwater image datasets are of great significance for training various underwater vision models due to their large number, diverse scenes and underwater light environment.

[0003] At present, the methods of collecting underwater images are mainly divided into natural environment collection and laboratory environment collection. The images collected in the natural environment have uncontrollable blur and color cast due to the uncontrollable underwater environment. At the same time, the number of available clear underwater images is small due to the difficult collection conditions. Compared with the natural environment, the underwater images collected in the laboratory environment are more controllable and easier to collect, which is convenient for building a large data set for training models.

[0004] However, in existing laboratories, water turbidity is controlled mainly by manually dripping solvents to adjust turbidity into the water, and using turbidity sensors to display the current turbidity in real time. In this method, there is a hysteresis in the change of turbidity. When the solvent is dripped into the water, the turbidity of the water will not change immediately, but it will be a slow change process, and it is necessary to wait for the solvent and the water to be fully mixed before the true turbidity of the water after adding a certain amount of solvent can be measured. However, waiting for the solvent and the water to be fully mixed takes a lot of time, which greatly increases the time cost and reduces work efficiency. Summary of the invention

[0005] The object of the present invention is to provide a device for automatically acquiring multi-scene and multi-turbidity underwater images, aiming to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above object, the present invention provides the following solution: The present invention provides a device for automatically collecting multi-scene and multi-turbidity underwater images, comprising:

[0007] The box body is used to inject clean water;

[0008] A titration mechanism, used for dripping a solvent into the clean water in the box;

[0009] The stirring mechanism comprises a driving device arranged in the box body and a mounting plate connected to the output end of the driving device, wherein an assembly part is arranged in the mounting plate, and a plurality of blades are rotatably arranged at equal intervals in the circumferential direction on the assembly part, and the blades are provided with bubble guiding grooves;

[0010] A turbidity measuring device is arranged at the bottom of the box;

[0011] A waterproof electronic screen is arranged at the bottom of the box;

[0012] The fixing mechanism is arranged above the waterproof electronic screen, and the fixing mechanism is used to be detachably connected to the camera.

[0013] Optionally, the titration mechanism comprises:

[0014] Mounting seat;

[0015] A burette, arranged on the mounting seat, with the liquid outlet end of the burette facing the interior of the box;

[0016] The valve is arranged on the burette.

[0017] Optionally, a liquid level sensor is also provided on the burette.

[0018] Optionally, the fixing mechanism includes:

[0019] A mounting bracket is arranged on the top of the box body, and a plurality of disassembly and assembly positions are arranged on the mounting bracket;

[0020] A rotating clamping claw is arranged on the mounting bracket, and the rotating clamping claw is used to be detachably connected to the camera;

[0021] A light shield is arranged on the mounting bracket, and the light shield covers the camera.

[0022] Optionally, a plurality of fill lights are arranged circumferentially within the box.

[0023] Optionally, a shading film is provided around the side wall of the box body.

[0024] Optionally, a water inlet is provided on the side wall of the box body.

[0025] Optionally, a plurality of bases are provided at the bottom of the box.

[0026] Optionally, the driving device is a motor.

[0027] Optionally, the box body is made of tempered glass.

[0028] The present invention discloses the following technical effects: a camera is fixed by a fixing mechanism, so that an image on a waterproof electronic screen can be collected by the camera, and a solvent is dripped into clean water by a titration mechanism, and a mounting disk is driven to rotate by a driving device, and the mounting disk drives blades therein to stir the clean water, and at the same time, bubble guide grooves on the blades can ensure that bubbles can be effectively guided and mixed into the liquid during the stirring process, avoiding interference of bubbles on the stirring effect, so that the clean water and the solvent can be quickly mixed, effectively reducing time consumption, and cooperating with a turbidity measuring device to effectively solve the inaccuracy of manually dripping solvents, thereby improving the efficiency of turbidity control. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the structure of the installation disk of the present invention;

[0032] Figure 3 It is a schematic diagram of the fixing mechanism structure of the present invention.

[0033] In the figure: 1. driving device; 2. turbidity measuring device; 3. titration mechanism; 4. fill light; 5. fixing mechanism; 51. mounting bracket; 52. rotating clamp; 53. light shield; 6. base; 7. water inlet; 8. waterproof electronic screen; 9. mounting plate; 10. blades; 11. bubble guide groove. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Reference Figure 1-Figure 3 The present invention provides a device for automatically collecting multi-scene and multi-turbidity underwater images, comprising:

[0037] The box body is used to inject clean water;

[0038] A titration mechanism 3, used for dripping the solvent into the clean water in the box;

[0039] The stirring mechanism comprises a driving device 1 disposed in the box and a mounting plate 9 connected to the output end of the driving device 1, wherein an assembly part is disposed in the mounting plate 9, and a plurality of blades 10 are rotatably and circumferentially evenly spaced on the assembly part, and a bubble guiding groove 11 is disposed on the blade 10;

[0040] A turbidity measuring device 2 is arranged at the bottom of the box;

[0041] The waterproof electronic screen 8 is arranged at the bottom of the box; the waterproof electronic screen 8 has a size of 60cm×60cm and a thickness of 1cm, and is fixed to the bottom of the tank with waterproof glass glue. The waterproof electronic screen 8 is connected to the computer through a waterproof cable and a waterproof data cable. The computer can control the underwater electronic screen to display different images, thereby achieving the purpose of changing the underwater scene, and effectively simplifying the difficulty of adjusting the underwater image.

[0042] The fixing mechanism 5 is arranged above the waterproof electronic screen 8, and the fixing mechanism 5 is used to be detachably connected to the camera.

[0043] By fixing the camera through the fixing mechanism 5, the image on the waterproof electronic screen 8 can be collected through the camera, and the solvent is dripped into the clean water through the titration mechanism 3. The mounting disk 9 is driven to rotate by the driving device 1, and the blades 10 therein are driven by the mounting disk 9 to stir the clean water. At the same time, the bubble guide groove 11 on the blade 10 can ensure that the bubbles can be effectively guided and mixed into the liquid during the stirring process, avoiding the interference of the bubbles on the stirring effect, so that the clean water and the solvent can be quickly mixed, effectively reducing the time consumption, and cooperating with the turbidity measuring device 2 to effectively solve the inaccuracy of manual dripping of the solvent, thereby improving the efficiency of turbidity control.

[0044] Furthermore, the turbidity measuring device 2 uses a DS500 portable multi-parameter water quality meter, a hole is punched at the bottom of the box, and the turbidity measuring device 2 is fixed to the bottom of the box using bolts.

[0045] The turbidity measuring device 2 is always in working state after starting the collection work, obtaining turbidity data every 0.5s and transmitting it to the computer via Bluetooth. The rapid rotation of the motor accelerates the fusion of clean water and solvent. After waiting for the turbidity data to stabilize, the current turbidity value is recorded.

[0046] Furthermore, the surface of the blade 10 is specially treated with a low friction coefficient polytetrafluoroethylene (PTFE) coating to reduce the friction between the blade 10 and the liquid, and improve energy efficiency and durability. The blade 10 is a curved blade, and its leading edge and trailing edge are both progressive curves, and have appropriate angles and curvatures to reduce the resistance of the fluid and increase the disturbance effect of the fluid. 10 to 12 blades 10 can be placed according to the size of the mounting plate 9, the amount of liquid and the stirring rate, and the blade spacing is 8% to 10% of the inner diameter of the mounting plate 9 to ensure that the fluid is fully circulated during the stirring process. The leading edge angle of the blade 10 can be adjusted between 15° and 30° to ensure the best fluid disturbance effect at different stirring speeds.

[0047] Furthermore, data of adding different volumes of water to the cylinder, adding different volumes of solutions to the water, and different rotation times and rotation speeds of the blade 10 are collected in advance, and the above collected data are used as input, and the turbidity value of the water in the glass cylinder after the turbidity is stabilized is used as output to train the neural network model. In the subsequent actual sampling process, the pre-trained model can be used to control the titration device to drip the required amount, and at the same time, the motor drives the blade 10 to rotate for a corresponding time and speed to achieve the target turbidity value.

[0048] In one embodiment of the present invention, the titration mechanism 3 comprises:

[0049] Mounting seat;

[0050] The burette is arranged on the mounting seat, the liquid outlet end of the burette faces the inside of the box, and the burette is a polytetrafluoroethylene acid-base universal burette;

[0051] The valve is arranged on the burette and is an electric rotary regulating device.

[0052] The solvent output from the burette is controlled by a valve.

[0053] In one embodiment of the present invention, a liquid level sensor is also provided on the burette.

[0054] The liquid level sensor monitors the liquid level in the burette in real time.

[0055] In one embodiment of the present invention, the fixing mechanism 5 comprises:

[0056] The mounting bracket 51 is arranged on the top of the box body, and a plurality of disassembly and assembly positions are arranged on the mounting bracket. The mounting bracket 51 adopts a four-piece fixing plate design, and a plurality of disassembly and assembly positions are arranged on the fixing plate. By adjusting the fixing positions of the four fixing plates at the same time, the depth of the camera can be flexibly adjusted;

[0057] The rotating jaw 52 is disposed on the mounting bracket 51. The rotating jaw 52 is used to be detachably connected to the camera. The rotating jaw 52 changes the size of the clamping area by rotating the gear, thereby adapting to most models of underwater cameras, effectively improving the utilization rate of the fixing mechanism 5 and reducing the acquisition cost;

[0058] The light shield 53 is disposed on the mounting bracket 51 , and covers the camera.

[0059] In one embodiment of the present invention, a plurality of fill lights 4 are arranged circumferentially in the box. Specifically, there are four fill lights 4, which are LED strip lighting lamps and are installed on four sides of the box that are perpendicular to the box for sampling fill light.

[0060] Furthermore, in order to ensure uniform illumination, the light-emitting housings of the four fill-in lights 4 are covered with diffusers with diffuse reflection function to diffuse the light and reduce the light spots. At the same time, the color and light intensity of the fill-in lights 4 can be controlled by a computer to achieve different underwater light environments and construct underwater image data sets of multiple light environments.

[0061] In one embodiment of the present invention, a shading film is provided around the side wall of the box to eliminate interference from external light. Therefore, there is no need to install an underwater illuminance meter. It is only necessary to set the color and light intensity of the fill light 4 to fixed values ​​to ensure the consistency of the light environment when collecting underwater images.

[0062] In one embodiment of the present invention, a water inlet 7 is provided on the side wall of the box body, the diameter of the water inlet 7 is 4 cm, the center of the water inlet 7 is 10 cm away from the bottom of the cylinder, and the outside of the water inlet 7 is sealed with a thread and a screw cover.

[0063] In one embodiment of the present invention, a plurality of bases 6 are provided at the bottom of the box, and the bases 6 are made of stainless steel. Each base 6 is welded by a round stainless steel with a diameter of 40 mm and a height of 30 mm and a round stainless steel with a diameter of 60 mm and a height of 15 mm. Glass glue is used to fix the four stainless steel bases 6 at the four corners of the bottom of the box.

[0064] In one embodiment of the present invention, the driving device 1 is a motor, which is fixed to the side wall of the box body using 8 to 12 bolts, and the center of the motor is 35 cm away from the bottom of the glass cylinder.

[0065] In one embodiment of the present invention, the box body is made of tempered glass.

[0066] Furthermore, a metal cover is provided above the box body. The metal cover is made of a 60cm×60cm, 1cm thick stainless steel plate. An escape hole for escaping the burette is provided on the metal cover, and the mounting bracket 51 is detachably connected to the metal cover.

[0067] Directions:

[0068] Connect the device to the computer, and pour clean water into the box until the water level is 5 to 5 cm above the fixing mechanism. Fix the camera on the fixing mechanism 5, and adjust the camera fixing depth by installing the bracket 51.

[0069] Download the public data set, and control the waterproof electronic screen 8 to display an image through the computer. Set the illumination intensity of the underwater fill light 4 to a fixed value, and set the color to a fixed color. Use the camera to collect images at a speed of 24 frames per second, and the collection time is 2s. The waterproof electronic screen 8 changes an image every 2s until every image in the downloaded public data set is displayed once, and then the camera stops sampling. At this time, all clear underwater images are collected.

[0070] Adjust the light intensity and color of the fill light 4 to simulate different underwater light environments.

[0071] According to actual needs, the target turbidity is set, and the trained LSTM model is used to control the titration mechanism 3 and the motor.

[0072] After the turbidity value stabilizes at the target turbidity, repeat the above steps again until the turbidity of the water in the tank increases to the point where the underwater image is completely blurred and cannot be seen.

[0073] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0074] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for automatically collecting multi-scene and multi-turbidity underwater images, characterized in that: include: The box body is used to inject clean water; A titration mechanism (3) for dripping a solvent into the clean water in the box; The stirring mechanism comprises a driving device (1) arranged in the box and a mounting plate (9) connected to the output end of the driving device (1), wherein an assembly part is arranged in the mounting plate (9), and a plurality of blades (10) are rotatably arranged at equal intervals in the circumferential direction on the assembly part, and the blades (10) are provided with bubble guide grooves (11); A turbidity measuring device (2) is arranged at the bottom of the box; A waterproof electronic screen (8) is arranged at the bottom of the box; A fixing mechanism (5) is arranged above the waterproof electronic screen (8), and the fixing mechanism (5) is used to be detachably connected to the camera.

2. The device for automatic acquisition of multi-scene and multi-turbidity underwater images according to claim 1, characterized in that: The titration mechanism (3) comprises: Mounting seat; A burette, arranged on the mounting seat, with the liquid outlet end of the burette facing the interior of the box; The valve is arranged on the burette.

3. The device for automatic acquisition of multi-scene and multi-turbidity underwater images according to claim 2, characterized in that: The burette is also provided with a liquid level sensor.

4. The device for automatic acquisition of multi-scene and multi-turbidity underwater images according to claim 1, characterized in that: The fixing mechanism (5) comprises: A mounting bracket (51) is arranged on the top of the box body, and a plurality of disassembly and assembly positions are arranged on the mounting bracket; A rotating clamp (52) is arranged on the mounting bracket (51), and the rotating clamp (52) is used to be detachably connected to the camera; A light shield (53) is arranged on the mounting bracket (51), and the light shield (53) covers the camera.

5. The device for automatic acquisition of multi-scene and multi-turbidity underwater images according to claim 1, characterized in that: A plurality of fill-in lights (4) are arranged in the circumferential direction of the box.

6. The device for automatic acquisition of multi-scene and multi-turbidity underwater images according to claim 1, characterized in that: A light-shielding film is arranged circumferentially on the side wall of the box body.

7. The device for automatic acquisition of multi-scene and multi-turbidity underwater images according to claim 1, characterized in that: The side wall of the box body is provided with a water injection port (7).

8. The device for automatic acquisition of multi-scene and multi-turbidity underwater images according to claim 1, characterized in that: A plurality of bases (6) are arranged at the bottom of the box.

9. The device for automatic acquisition of multi-scene and multi-turbidity underwater images according to claim 1, characterized in that: The driving device (1) is a motor.

10. The device for automatic acquisition of multi-scene and multi-turbidity underwater images according to claim 1, characterized in that: The box body is made of tempered glass.

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