阅读说明：本技术 一种偏振成像水下装置与目标探测方法 (Polarization imaging underwater device and target detection method ) 是由 徐国明 夏乐雯 夏朝阳 葛赓 于 2021-08-26 设计创作，主要内容包括：本发明公开了一种偏振成像水下装置与目标探测方法,涉及偏振成像仪技术领域,包括进行装配偏振成像仪和进行装配在偏振成像仪上的探测头,其中偏振成像仪至少包括信息传输至服务端,探测头至少包括装配线偏振片,进行基于集束光源作为水下照明建立非均匀光场,在距离目标场景的同一位置对目标场景进行不同角度的偏振图采集,并完成信息传输。本发明在距离目标场景的同一位置对目标场景进行不同角度的偏振图采集,并完成信息传输,其目标探测图像精准度高,且可适应不同环境下使用需求,此外使用寿命高。(The invention discloses a polarization imaging underwater device and a target detection method, which relate to the technical field of polarization imaging instruments and comprise a polarization imaging instrument and a detection head, wherein the polarization imaging instrument is assembled and the detection head is assembled on the polarization imaging instrument, the polarization imaging instrument at least comprises information transmission to a server side, the detection head at least comprises an assembly line polaroid, a non-uniform light field is established by taking a beam converging light source as underwater illumination, polarization diagrams of different angles are acquired at the same position away from a target scene, and information transmission is completed. The invention collects the polarization diagrams of different angles of the target scene at the same position away from the target scene and completes information transmission, and the target detection image has high precision, can adapt to the use requirements under different environments, and has long service life.)

1. A polarization imaging underwater device comprises a polarization imager (1) and a detecting head (2) arranged on the polarization imager (1), and is characterized in that: the polarization imaging device is characterized by further comprising an upper shell (3) and a lower shell (4) which are connected with each other, wherein the polarization imaging device (1) is arranged between the upper shell (3) and the lower shell (4);

a first arc-shaped groove (5) is formed in the center of the bottom of the left end of the upper shell (3), a first clamping pad (6) is arranged on the inner wall of the first arc-shaped groove (5), a second arc-shaped groove (7) is formed in the center of the top of the left end of the lower shell (4), and a second clamping pad (8) is arranged on the inner wall of the second arc-shaped groove (7);

the top fixed mounting of casing (4) outer wall has lower connecting plate (10) down, the bottom fixed mounting of going up casing (3) outer wall has upper junction plate (11), the top of lower connecting plate (10) is provided with outer sealing gasket (12), the bottom of upper junction plate (11) seted up with seal groove (13) that outer sealing gasket (12) are coupled.

2. A polarized imaging underwater apparatus according to claim 1, characterized in that: the probe (2) is cylindrical, a circular ring is formed between the first clamping pad (6) and the second clamping pad (8), and the inner diameter of the circular ring is coupled with the diameter of the probe (2).

3. A polarized imaging underwater apparatus according to claim 2, characterized in that: the edge of the bottom of the upper shell (3) and the edge of the top of the lower shell (4) are both provided with inner sealing gaskets (9).

4. A polarized imaging underwater apparatus according to claim 3, characterized in that: the height of the outer sealing gasket (12) is greater than the depth of the sealing groove (13);

and side grooves (14) are formed on two sides of the inner top wall of the sealing groove (13).

5. A polarization imaging underwater apparatus according to claim 4, characterized in that: thread groove (15) have evenly been seted up to the inside of lower connecting plate (10), the inner wall threaded connection of thread groove (15) has bolt (16), the bottom of upper junction plate (11) evenly seted up with bolt (16) coupled's spread groove (17), the top of bolt (16) is passed thread groove (15) threaded connection on the inner wall of spread groove (17).

6. A polarization imaging underwater apparatus according to claim 5, characterized in that: the inner top wall of the upper shell (3) and the inner bottom wall of the lower shell (4) are uniformly provided with a fixed cylinder (18), the inside of the fixed cylinder (18) is movably provided with a compression column (19), and the polarization imager (1) is arranged between the upper and lower compression columns (19).

7. The underwater apparatus for polarization imaging according to claim 6, wherein: one end of the compression leg (19) in the fixed cylinder (18) is fixedly provided with a pressure plate (20), and a spring (21) is fixedly connected between the pressure plate (20) and the inner wall of the fixed cylinder (18).

8. A polarization imaging underwater object detection method for an object detection method of a polarization imaging underwater apparatus according to any one of claims 1 to 7, characterized in that: the method comprises the following steps:

assembling a polarization imager and a detecting head assembled on the polarization imager in advance, wherein the polarization imager at least comprises information transmission to a service end, and the detecting head at least comprises an assembly line polaroid;

the upper shell and the lower shell are coupled and connected with each other, wherein the upper shell and the lower shell are provided with an outer sealing pad and a sealing groove which are matched with each other, a fixed cylinder is arranged in the upper shell and the lower shell, and the fixed cylinder at least comprises a spring for buffering;

then, the polarization imager and the detecting head are pressed on the basis of the upper shell and the lower shell, and the assembly of the polarization imager is completed;

and establishing a non-uniform light field by taking the beam-concentrating light source as underwater illumination, acquiring polarization diagrams of different angles on the target scene at the same position away from the target scene, and finishing information transmission.

Technical Field

The invention relates to the technical field of polarization imaging instruments, in particular to a polarization imaging underwater device and a target detection method.

Background

The polarization imaging technology is a novel target detection technology developed in recent ten years, the polarization imaging technology can represent the information of roughness, humidity, material physicochemical characteristics and the like of some natural target objects, and can reduce backscattered light and target reflected light which enter a detector to different degrees when an underwater target is detected, most of the backscattered light is filtered out, and most of the target reflected light can reach the detector, namely the incident proportion of the target reflected light is improved, the image contrast formed on the detector is improved, so the polarization imaging technology can improve the image definition to a great extent, and further the detection distance and the detection depth are increased; therefore, the polarization imaging technology has good development and wide application prospect in the field of underwater imaging.

However, in practical applications, it is found that the conventional polarization imager still has certain disadvantages, for example, the conventional polarization imager has a poor waterproof effect, and a professional waterproof housing needs to be designed when the conventional polarization imager is applied to the field of underwater imaging, but the conventional polarization imager is limited to waterproof performance and cannot be directly applied to underwater detection.

Based on this, we propose a polarization imaging underwater device and a target detection method, and hope to solve the disadvantages in the prior art.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a polarization imaging underwater device and a target detection method, which have the advantage that a polarization imager without a waterproof function can be directly applied to underwater detection.

(II) technical scheme

In order to realize the purpose that the polarization imager without the waterproof function can be directly applied to underwater detection, the invention provides the following technical scheme:

one aspect of the invention:

a polarization imaging underwater device comprises a polarization imager, a detecting head arranged on the polarization imager, an upper shell and a lower shell which are connected with each other, wherein the polarization imager is arranged between the upper shell and the lower shell;

a first arc-shaped groove is formed in the center of the bottom of the left end of the upper shell, a first clamping pad is arranged on the inner wall of the first arc-shaped groove, a second arc-shaped groove is formed in the center of the top of the left end of the lower shell, and a second clamping pad is arranged on the inner wall of the second arc-shaped groove;

the top fixed mounting of lower casing outer wall has the lower connecting plate, the bottom fixed mounting of last casing outer wall has the upper junction plate, the top of lower connecting plate is provided with outer sealing gasket, the bottom of upper junction plate seted up with the seal groove of outer sealing gasket looks coupling.

In a preferred embodiment of the present invention, the probe head is cylindrical, a circular ring is formed between the first and second clamping pads, and the inner diameter of the circular ring is coupled to the diameter of the probe head.

As a preferred technical scheme of the present invention, the edge of the bottom of the upper casing and the edge of the top of the lower casing are both provided with an inner sealing gasket.

As a preferred technical solution of the present invention, the height of the outer seal gasket is greater than the depth of the seal groove; and side grooves are formed on two sides of the inner top wall of the sealing groove.

As a preferred technical scheme of the present invention, threaded grooves are uniformly formed in the lower connecting plate, bolts are threadedly connected to inner walls of the threaded grooves, connecting grooves coupled to the bolts are uniformly formed in the bottom of the upper connecting plate, and top ends of the bolts penetrate through the threaded grooves and are threadedly connected to inner walls of the connecting grooves.

As a preferred technical scheme of the invention, the inner top wall of the upper shell and the inner bottom wall of the lower shell are uniformly provided with fixed cylinders, the insides of the fixed cylinders are movably provided with compression columns, and the polarization imager is arranged between the upper and lower layers of compression columns.

As a preferred technical scheme of the invention, one end of the compression column, which is positioned in the fixed cylinder, is fixedly provided with a compression plate, and a spring is fixedly connected between the compression plate and the inner wall of the fixed cylinder.

In another aspect of the invention:

a polarization imaging underwater target detection method is used for a target detection method of a polarization imaging underwater device, and comprises the following steps:

step S1, assembling a polarization imager and a detecting head assembled on the polarization imager in advance, wherein the polarization imager at least comprises information transmission to a service end, and the detecting head at least comprises an assembly line polaroid;

step S2, coupling the upper shell and the lower shell which are connected with each other, wherein the upper shell and the lower shell are provided with an outer sealing pad and a sealing groove which are matched with each other, and a fixed cylinder is arranged in the upper shell and the lower shell and at least comprises a spring for buffering;

step S3, pressing the polarization imager and the probe based on the upper shell and the lower shell to complete the assembly of the polarization imager;

and step S4, establishing a non-uniform light field by taking the beam-concentrating light source as underwater illumination, acquiring polarization diagrams of different angles from the target scene at the same position away from the target scene, and completing information transmission.

(III) advantageous effects

Compared with the prior art, the invention provides a polarization imaging underwater device and a target detection method, which have the following beneficial effects:

1. in the polarization imaging underwater device, a polarization imager is positioned inside an upper shell and a lower shell, the upper shell and the lower shell are connected through a bolt, and the bolt is screwed to gradually screw into a connecting groove so as to stably connect the upper shell and the lower shell;

when the bolt is screwed to enable the bolt to be gradually screwed into the connecting groove, the first clamping pad and the second clamping pad can gradually clamp the detecting head of the polarization imager, so that the detecting head is sealed and water is prevented from entering;

when the bolt is screwed to gradually screw into the connecting groove, the inner sealing gasket at the bottom edge of the upper shell and the inner sealing gasket at the top edge of the lower shell are tightly attached to each other, so that the sealing effect is achieved, and water is prevented from entering;

when the bolt is screwed to gradually screw into the connecting groove, the outer sealing pad at the top of the lower connecting plate is gradually clamped into the sealing groove, so that a gap between the upper shell and the lower shell can be further sealed; when the lower connecting plate is completely attached to the upper connecting plate, the outer sealing gasket is higher than the sealing groove in depth, so that the outer sealing gasket deforms in the sealing groove due to extrusion, the generated deformation fills the side groove, and the sealing groove and the side groove are completely filled with the deformation, so that an excellent waterproof effect is achieved.

2. This polarization formation of image is device under water, the interior roof of going up the casing all is provided with the solid fixed cylinder with the interior diapire of casing down, polarization imager places between two-layer solid fixed cylinder, when screwing the bolt and making the bolt screw in the spread groove gradually, two-layer solid fixed cylinder is close to each other towards polarization imager and can inwards extrude the compression leg, the compression leg is pressed and is moved and can compress spring through the clamp plate, thereby produce the top tension, the top tension that utilizes the spring to produce can make the compression leg tightly withstand polarization imager, the position of the fixed polarization imager of both being convenient for, can also play buffer protection's effect when falling.

3. A polarization imaging underwater target detection method comprises the steps of assembling a polarization imager and a detection head assembled on the polarization imager in advance, transmitting construction information of the polarization imager to a server side, constructing an assembly line polaroid by the detection head, coupling an upper shell and a lower shell which are connected with each other, assembling an outer sealing gasket and a sealing groove which are matched with each other by the upper shell and the lower shell, arranging a fixed cylinder in the upper shell and the lower shell, buffering by assembling a spring in the fixed cylinder, laminating the polarization imager and the detection head based on the upper shell and the lower shell to finish the assembly of the polarization imager, establishing a non-uniform light field by using a beam concentration light source as underwater illumination, acquiring polarization diagrams of different angles on a target scene at the same position from the target scene, finishing information transmission, and having high target detection image accuracy, the device can meet the use requirements in different environments, and has a long service life.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the lower web and upper web portions of the present invention;

FIG. 3 is a top view of the lower housing portion of the present invention;

FIG. 4 is a cross-sectional view of a stationary barrel portion of the present invention;

FIG. 5 is a schematic flow chart of the method for detecting underwater targets by polarization imaging according to the present invention.

In the figure: 1. a polarization imager; 2. a probe head; 3. an upper housing; 4. a lower housing; 5. a first arc-shaped slot; 6. a first card pad; 7. a second arc-shaped slot; 8. a second card pad; 9. an inner seal; 10. a lower connecting plate; 11. an upper connecting plate; 12. an outer seal gasket; 13. a sealing groove; 14. a side groove; 15. a thread groove; 16. a bolt; 17. connecting grooves; 18. a fixed cylinder; 19. pressing the column; 20. pressing a plate; 21. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-3, a polarization imaging underwater device comprises a polarization imager 1, a probe 2 arranged on the polarization imager 1, and an upper shell 3 and a lower shell 4 which are connected with each other, wherein the polarization imager 1 is arranged between the upper shell 3 and the lower shell 4, and the upper shell 3 and the lower shell 4 play a waterproof role in wrapping the polarization imager 1, so that the polarization imager 1 without a waterproof function can be applied to the field of underwater detection without designing a professional waterproof shell, thereby saving the cost;

the top of the outer wall of the lower shell 4 is fixedly provided with a lower connecting plate 10, the bottom of the outer wall of the upper shell 3 is fixedly provided with an upper connecting plate 11, the inside of the lower connecting plate 10 is uniformly provided with a thread groove 15, the inner wall of the thread groove 15 is in threaded connection with a bolt 16, the bottom of the upper connecting plate 11 is uniformly provided with a connecting groove 17 coupled with the bolt 16, the top end of the bolt 16 penetrates through the thread groove 15 and is in threaded connection with the inner wall of the connecting groove 17, the upper shell 3 is connected with the lower shell 4 through the bolt 16, the bolt 16 is screwed to gradually screw the bolt 16 into the connecting groove 17, and the upper shell 3 and the lower shell 4 can be stably connected;

the center of the bottom of the left end of the upper shell 3 is provided with a first arc-shaped groove 5, the inner wall of the first arc-shaped groove 5 is provided with a first clamping pad 6, the center of the top of the left end of the lower shell 4 is provided with a second arc-shaped groove 7, the inner wall of the second arc-shaped groove 7 is provided with a second clamping pad 8, the detecting head 2 is cylindrical, a circular ring is formed between the first clamping pad 6 and the second clamping pad 8, the inner diameter of the circular ring is coupled with the diameter of the detecting head 2, when the bolt 16 is screwed to enable the bolt 16 to be gradually screwed into the connecting groove 17, the first clamping pad 6 and the second clamping pad 8 can gradually clamp the detecting head 2 of the polarization imager 1, so that the position of the detecting head 2 is sealed, and water is prevented from entering;

the edge of the bottom of the upper shell 3 and the edge of the top of the lower shell 4 are both provided with the inner sealing gaskets 9, when the bolt 16 is screwed to enable the bolt 16 to be gradually screwed into the connecting groove 17, the inner sealing gaskets 9 at the edge of the bottom of the upper shell 3 and the inner sealing gaskets 9 at the edge of the top of the lower shell 4 are tightly attached to each other, so that the sealing effect is achieved, and water is prevented from entering;

the top of the lower connecting plate 10 is provided with an outer sealing gasket 12, the bottom of the upper connecting plate 11 is provided with a sealing groove 13 coupled with the outer sealing gasket 12, and when the bolt 16 is screwed to gradually screw the bolt 16 into the connecting groove 17, the outer sealing gasket 12 at the top of the lower connecting plate 10 is gradually clamped into the sealing groove 13, so that a gap between the upper shell 3 and the lower shell 4 can be further sealed;

the height of outer sealing pad 12 is greater than the degree of depth of seal groove 13, and the both sides of roof are formed with side channel 14 in seal groove 13, and when laminating completely between lower connecting plate 10 and the upper junction plate 11, because outer sealing pad 12 highly is greater than the degree of depth of seal groove 13, so outer sealing pad 12 can produce deformation because of the extrusion in seal groove 13, and the side channel 14 is filled in to the deformation that produces, fills up seal groove 13 and side channel 14 completely to reach excellent water-proof effects.

Example two:

referring to fig. 4, on the basis of the first embodiment, the inner top wall of the upper housing 3 and the inner bottom wall of the lower housing 4 are uniformly provided with the fixed cylinders 18, the fixed cylinders 18 are movably provided with the compression columns 19 inside, the polarization imager 1 is arranged between the upper and lower compression columns 19, one ends of the compression columns 19, which are located in the fixed cylinders 18, are fixedly provided with the pressing plates 20, and the springs 21 are fixedly connected between the pressing plates 20 and the inner walls of the fixed cylinders 18;

go up the interior roof of casing 3 and the interior diapire of casing 4 down and all be provided with solid fixed cylinder 18, polarization imaging appearance 1 is placed between two-layer solid fixed cylinder 18, when screwing bolt 16 and making during bolt 16 precession spread groove 17 gradually, two-layer solid fixed cylinder 18 is close to each other towards polarization imaging appearance 1 and can inwards extrude compression leg 19, compression leg 19 is pressed and is moved and can compress spring 21 through clamp plate 20, thereby produce the top tension, the top tension that utilizes spring 21 to produce can make compression leg 19 tightly withstand polarization imaging appearance 1, the position of polarization imaging appearance 1 of both being convenient for, can also play the effect of buffer protection when falling.

The working principle and the using process of the invention are as follows:

the polarization imager 1 is positioned inside the upper shell 3 and the lower shell 4, the upper shell 3 is connected with the lower shell 4 through a bolt 16, the bolt 16 is screwed to gradually screw the bolt 16 into a connecting groove 17, and the upper shell 3 and the lower shell 4 can be stably connected;

when the bolt 16 is screwed to enable the bolt 16 to be gradually screwed into the connecting groove 17, the first clamping pad 6 and the second clamping pad 8 can gradually clamp the detecting head 2 of the polarization imager 1, so that the position of the detecting head 2 is sealed and water is prevented from entering;

when the bolt 16 is screwed to enable the bolt 16 to be gradually screwed into the connecting groove 17, the inner sealing gasket 9 at the edge of the bottom of the upper shell 3 and the inner sealing gasket 9 at the edge of the top of the lower shell 4 are tightly attached to each other, so that the sealing effect is achieved, and water is prevented from entering;

when the bolt 16 is screwed to gradually screw the bolt 16 into the connecting groove 17, the outer sealing gasket 12 on the top of the lower connecting plate 10 is gradually clamped into the sealing groove 13, so that the gap between the upper shell 3 and the lower shell 4 can be further sealed;

when the lower connecting plate 10 and the upper connecting plate 11 are completely attached, the height of the outer sealing gasket 12 is greater than the depth of the sealing groove 13, so that the outer sealing gasket 12 deforms in the sealing groove 13 due to extrusion, the generated deformation fills the side groove 14, and the sealing groove 13 and the side groove 14 are completely filled with the deformation, so that an excellent waterproof effect is achieved;

go up the interior roof of casing 3 and the interior diapire of casing 4 down and all be provided with solid fixed cylinder 18, polarization imaging appearance 1 is placed between two-layer solid fixed cylinder 18, when screwing bolt 16 and making during bolt 16 precession spread groove 17 gradually, two-layer solid fixed cylinder 18 is close to each other towards polarization imaging appearance 1 and can inwards extrude compression leg 19, compression leg 19 is pressed and is moved and can compress spring 21 through clamp plate 20, thereby produce the top tension, the top tension that utilizes spring 21 to produce can make compression leg 19 tightly withstand polarization imaging appearance 1, the position of polarization imaging appearance 1 of both being convenient for, can also play the effect of buffer protection when falling.

Example three:

referring to fig. 5, a method for detecting an underwater target by polarization imaging, which is used for a target detection method of an underwater device by polarization imaging, includes the following steps:

step S1, assembling a polarization imager and a detecting head assembled on the polarization imager in advance, wherein the polarization imager at least comprises information transmission to a service end, and the detecting head at least comprises an assembly line polaroid;

step S2, coupling the upper shell and the lower shell which are connected with each other, wherein the upper shell and the lower shell are provided with an outer sealing pad and a sealing groove which are matched with each other, and a fixed cylinder is arranged in the upper shell and the lower shell and at least comprises a spring for buffering;

step S3, pressing the polarization imager and the probe based on the upper shell and the lower shell to complete the assembly of the polarization imager;

and step S4, establishing a non-uniform light field by taking the beam-concentrating light source as underwater illumination, acquiring polarization diagrams of different angles from the target scene at the same position away from the target scene, and completing information transmission.

Specifically, the polarization imager is assembled in advance, a detection head is assembled on the polarization imager, construction information of the polarization imager is transmitted to a server side, the detection head constructs an assembly line polaroid, an upper shell and a lower shell which are connected with each other in a coupling mode are coupled, the upper shell and the lower shell are assembled with an outer sealing gasket and a sealing groove which are matched with each other, fixing cylinders are arranged in the upper shell and the lower shell, springs are assembled in the fixing cylinders for buffering, then the polarization imager and the detection head are pressed on the basis of the upper shell and the lower shell, the polarization imager is assembled, an uneven light field is established by taking a beam concentrating light source as underwater illumination, polarization diagrams at different angles are collected on a target scene at the same position from the target scene, information transmission is completed, the target detection image accuracy is high, and the use requirements under different environments can be met, in addition, the service life is long.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.