Simulation sonar echo image generation system under multiple working conditions

Abstract

The invention provides a simulation sonar echo image generation system under multiple working conditions, and relates to the technical field of sonar echo image generation, the simulation sonar echo image generation system comprises an outer cylinder, circular plates are fixed on the top and the bottom of the outer cylinder, splice plates are symmetrically fixed on the circular plate on the top of the outer cylinder, and baffle blocks are symmetrically fixed on the circular plate on the bottom of the outer cylinder; a lifting rope is fixed to the circle center of the top of the circular plate. A machine body is fixed to the middle position in the outer cylinder, sonar transmitting ends are symmetrically fixed to the two ends of the machine body and penetrate out of the outer cylinder, the machine body and the sonar transmitting ends are the same as a circular plate, a splicing plate and a check block in shape, fixing frames are fixed to the top and the bottom of the machine body, and the fixing frames are fixedly connected with the circular plate; the sealing assembly moves along the interior of the outer cylinder, the outer cylinder is separated from the seabed environment, water in the water tank is fed into the outer cylinder, different water temperatures and different water pressures in the outer cylinder are controlled to simulate different working conditions, and data received by the sonar under different working conditions are corrected.

Description

Technical Field

[0001] This disclosure relates to the field of sonar echo image generation technology, and in particular to a simulated sonar echo image generation system under multiple operating conditions. Background Technology

[0002] Imaging sonar is a device that utilizes the properties of sound waves propagating in water to acquire image information of seabed or underwater objects by transmitting and receiving sound wave signals. It plays the following important roles on the seabed: The core of imaging sonar is the underwater propagation and reflection imaging of sound waves: the transmitting transducer emits a narrow beam of sound waves, which reflect off seabed topography and objects to form echoes. The receiving transducer captures these echo signals, and after processing, the time (distance calculation) and intensity (contour revealing) of the echoes are converted into two-dimensional / three-dimensional images, thus visualizing seabed targets.

[0003] Seabed topography mapping and modeling: Image sonar can emit multiple narrow beams to simultaneously acquire dense bathymetry data, accurately capture changes in seabed micro-topography, and create seabed topographic maps. It can also be combined with attitude sensors and sound velocity profile compensation algorithms to generate real-time digital elevation models of the seabed, providing 3D visualization support for channel dredging, safe navigation, and other applications. The development of algorithms for underwater target detection and underwater navigation typically requires large datasets of 2D or 3D sonar images to train and validate models, ensuring the robustness and performance of the algorithms under different scenarios and conditions. While simulations of 2D or 3D sonar images can provide large-scale sonar datasets for training deep learning models or validating algorithms, this process cannot test the impact of different operating conditions on the accuracy of sonar image generation. Summary of the Invention

[0004] This disclosure aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, the purpose of this disclosure is to provide a simulated sonar echo image generation system under multiple operating conditions.

[0006] To achieve the above objectives, this disclosure provides a multi-condition simulated sonar echo image generation system, comprising: an outer cylinder, with circular plates fixed to both the top and bottom of the outer cylinder; a splicing plate symmetrically fixed to the top circular plate of the outer cylinder, and a stop block symmetrically fixed to the bottom circular plate of the outer cylinder; a suspension rope fixed to the center of the top of the circular plates; a fuselage fixed to the middle position inside the outer cylinder, with sonar transmitters symmetrically fixed to both ends of the fuselage, the sonar transmitters extending out of the outer cylinder; the fuselage and sonar transmitters having the same shape as the circular plates, splicing plates, and stop blocks; a fixing frame fixed to the top and bottom of the fuselage, and the fixing frame fixedly connected to the circular plates; and a water tank fixed to the top of the outer cylinder, with a water inlet at the top of the water tank. The water tank has an opening and an electric heating wire installed inside. The middle part of the water tank is fixedly connected to the suspension rope. The sealing assembly includes a top plate, which is located at the upper end of the top circular plate of the outer cylinder. The top plate has upper arc plates fixed on both sides perpendicular to the splicing plate. The upper arc plates, splicing plate, and circular plate form a complete circular plate. The bottom of the upper arc plate has a lower arc plate fixed. The lower arc plate has the same size as the upper arc plate. The top plate is slidably sleeved on the surface of the suspension rope. The top of the upper arc plate has a semi-circular frame fixed, and two high-pressure air pumps are symmetrically fixed inside the semi-circular frame. The bottom of the high-pressure air pumps and the water tank are both fixed with a first connecting pipe. The upper arc plate and the splicing plate have communication openings corresponding to the positions of the first connecting pipes.

[0007] Optionally, the sealing assembly further includes: a turntable, a drive motor, a gear, and a gear ring. The turntable is rotatably mounted on the top of the top plate. A gear ring is fixed to the upper end of the turntable. A gear is meshed with one side of the gear ring. The top plate is fixed to the top of the gear, and the output end of the drive motor is fixedly connected to the gear. The drive motor drives the gear to rotate, and the gear meshes with the gear ring. The gear ring switches the connection between the first connecting pipe of the water tank and the high-pressure air pump and the connection port of the splicing plate and the first arc plate.

[0008] Optionally, a first baffle is slidably installed at the bottom of the water tank, and a second baffle is slidably installed at the top of the first arc plate. A limit frame is fixed to the outer edge of the first arc plate and the second baffle slides along the limit frame. The two ends of the first baffle are in contact with the second baffle. Through holes are opened on the first baffle and the second baffle at the positions corresponding to the first connecting pipe of the water tank and the high-pressure air pump. The through holes on the first baffle and the second baffle alternately correspond to the first connecting pipe. When the through hole of the first baffle connects the first connecting pipe and the connecting port, the through hole of the second baffle is misaligned with the first connecting pipe and the connecting port. A solenoid valve is installed inside the connecting port of the splicing plate and the first arc plate.

[0009] Optionally, a vertical frame is fixed to the side of the first baffle facing the turntable. The turntable has an outward-facing storage groove corresponding to the position of the vertical frame. A ball is slidably installed inside the storage groove. A second spring is fixed between the ball and the storage groove. A slot is provided on the vertical frame corresponding to the position where the ball protrudes. During the movement of the top plate along the water tank, the ball is squeezed and stored inside the storage groove. After the top plate moves to the top of the circular plate, the ball protrudes from the storage groove and is engaged in the slot of the vertical frame by the elastic force of the second spring. When the turntable rotates, the vertical frame and the first baffle can rotate synchronously.

[0010] Optionally, an outer plate is fixed to the outer surface of the water tank, and convex strips are symmetrically fixed to the outer surface of the outer plate. The bottom of the semi-circular frame is fixedly connected to the upper arc plate, and the two ends of the semi-circular frame are slidably sleeved on the convex strips. When the upper arc plate moves vertically with the top plate, the semi-circular frame leads the high-pressure air pump to slide along the convex strips.

[0011] Optionally, the water tank and the outer panel have a movable notch at one end facing outwards at the bottom. A connecting frame is provided on the outer surface of the water tank, and the bottom of the connecting frame passes through the movable notch and is fixedly connected to the first baffle. A third baffle is fixed on the top of the connecting frame, and the third baffle blocks the water inlet of the water tank. When the first baffle rotates with the turntable, the connecting frame moves along the movable notch, and the top of the connecting frame leads the third baffle to move along the top of the water tank, opening the water inlet of the water tank.

[0012] Optionally, electric push rods are fixed on both sides of the top of the water tank, and the extended ends of the electric push rods are fixedly connected to the top plate; wherein, the upper arc plate is moved up and down by the electric push rods.

[0013] Optionally, an arc frame is fixed to the bottom of the upper arc plate and the top of the lower arc plate, and the arc frame slides in contact with the inner wall of the outer cylinder, and the inside of the arc frame is hollow; wherein, after the upper arc plate moves upward, the space enclosed by the arc frame and the water tank can prevent seawater from entering the upper arc plate, the lower arc plate and the arc frame; after the upper arc plate moves to a position parallel to the splicing plate, the lower arc plate is used to push the seawater inside the outer cylinder downward, forming a cavity inside the outer cylinder.

[0014] Optionally, the baffle is hollow inside, and insert plates are slidably inserted into both ends of the baffle. The insert plates slide out from the bottom of the baffle, and a base plate is fixed to the two insert plates through the bottom of the baffle. A first spring is fixed to the base plate at an equal distance from the bottom surface of the baffle. The insert plates can slide out from both ends of the baffle to open the hollow part inside the baffle, so that the water inside the water tank can evenly fill the entire outer cylinder.

[0015] Optionally, a protruding plate is fixed to the top of the insert plate, and an extrusion groove is formed on the lower arc plate corresponding to the position of the protruding plate. The protruding plate is slidably inserted into the extrusion groove. When the lower arc plate moves downward, the extrusion groove contacts the protruding plate, pushing the protruding plate and the insert plate downward, thus opening the internal hollow of the stop block.

[0016] The technical solution provided in this disclosure may include the following beneficial effects: 1. In this invention, when the upper arc plate and the splicing plate are combined, the drive motor drives the gear to rotate and mesh with the gear ring. Because the ball is engaged with the slot, the vertical frame and the first baffle rotate synchronously with the turntable. Due to the squeezing contact between the first baffle and the second baffle, the second baffle slides along the limiting frame, aligning the through hole of the first baffle with the first connecting pipe and through hole of the water tank. Water inside the water tank can be sent into the outer cylinder. The water source can be heated by the heating wire inside the water tank. After being sent into the outer cylinder, the influence of different water temperature environments on the generation of sonar echo images can be observed. When the through hole of the second baffle is aligned with the first connecting pipe and connecting port of the high-pressure air pump, the high-pressure air pump pressurizes the water inside the outer cylinder, thus showing the influence of different water pressure environments on the generation of sonar echo images. 2. In this invention, an electric push rod drives the upper arc plate, arc frame, and lower arc plate to move vertically. In the initial stage of sonar generation, the upper arc plate and top plate move closer to the top of the water tank, while the lower arc plate is located at the top of the outer cylinder. At this time, seawater from the outside enters the outer cylinder, keeping the environment of the fuselage the same as the surrounding seawater. When switching between different operating conditions, the electric push rod drives the upper arc plate, arc frame, and lower arc plate downward. The lower arc plate discharges the seawater in the outer cylinder from the bottom. The upper arc plate, together with the splicing plate and the circular plate, seals the top of the outer cylinder, while the lower arc plate, together with the baffle and the circular plate, seals the bottom of the outer cylinder, thus forming a separate sealed environment inside the outer cylinder. 3. The connecting frame of the present invention rotates synchronously with the rotation of the first baffle and leads the third baffle to move along the top of the water tank. When the through hole of the first baffle is misaligned with the first connecting pipe of the water tank, the third baffle opens the water inlet at the top of the water tank, allowing seawater to enter the water tank. The opening of the moving notch can keep the first baffle and the third baffle rotating synchronously without being interfered with by the water tank and the outer plate. 4. In this invention, when the lower arc plate moves downward, it contacts the sonar transmitter and both sides of the baffle, draining the water inside the outer cylinder from the bottom. When it approaches the top of the insert plate, the protruding plate inserts into the squeezing groove. As the lower arc plate continues to move, it pushes the insert plate downward and gradually opens the hollow part of the baffle. Thus, when the lower arc plate seals the bottom of the outer cylinder, water can be added to the outer cylinder through the water tank, and the two sides of the outer cylinder can be connected through the hollow part of the baffle, thereby avoiding uneven distribution of water temperature and pressure on both sides of the outer cylinder. After the lower arc plate moves upward, the bottom plate pushes the insert plates at both ends into the two ends of the baffle by the elastic force of the first spring, sealing the hollow part of the baffle and preventing seawater from entering the interior of the baffle and affecting subsequent drainage.

[0017] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a system control diagram of a multi-condition simulated sonar echo image generation system proposed in one embodiment of the present disclosure; Figure 2 This is a schematic diagram of the overall structure of a simulated sonar echo image generation system under multiple working conditions proposed in an embodiment of this disclosure; Figure 3 This is a schematic diagram of the bottom structure of the outer cylinder in a multi-condition simulated sonar echo image generation system proposed in one embodiment of the present disclosure; Figure 4 This is a schematic diagram of the connection between the turntable and the second baffle in a multi-condition simulated sonar echo image generation system according to an embodiment of this disclosure; Figure 5 This is a schematic diagram of the connection between the first baffle and the second baffle in a multi-condition simulated sonar echo image generation system according to an embodiment of this disclosure; Figure 6 This is a schematic diagram of the turntable and the vertical frame being connected in a multi-condition simulated sonar echo image generation system according to an embodiment of this disclosure; Figure 7 This is a schematic diagram of the top structure of a sealing component in a multi-condition simulated sonar echo image generation system according to an embodiment of this disclosure; Figure 8 This is a schematic diagram of the separation of the sealing component and the outer cylinder in a multi-condition simulated sonar echo image generation system according to an embodiment of this disclosure; Figure 9 This is a schematic diagram of the top and bottom structure of a sonar device in a multi-condition simulated sonar echo image generation system according to an embodiment of this disclosure; Figure 10 This is a schematic diagram of the connection between the upper and lower arc plates in a multi-condition simulated sonar echo image generation system proposed in one embodiment of this disclosure; As shown in the figure: 1. Outer cylinder; 11. Lifting rope; 12. Stop block; 13. Insert plate; 14. Convex plate; 15. Base plate; 16. Circular plate; 17. Splicing plate; 18. First spring; 2. Sealing assembly; 21. Top plate; 22. Upper arc plate; 23. Arc frame; 24. Lower arc plate; 25. Extrusion groove; 26. Turntable; 27. Drive motor; 28. Gear; 29. ​​Gear ring; 210. Limiting frame; 211. First baffle; 212. Through hole; 213. Storage groove; 214. Second spring; 215. Ball; 3. Water tank; 31. Outer panel; 32. Raised strip; 33. Semicircular frame; 34. Connecting frame; 35. Movable notch; 36. Second baffle; 37. First connecting pipe; 38. Vertical frame; 39. Slot; 310. Third baffle; 4. Sonar transmitter; 41. Fuselage; 42. Mounting frame; 5. High-pressure air pump; 6. Electric linear actuator. Detailed Implementation

[0019] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8As shown in the figure, this disclosure proposes a multi-condition simulated sonar echo image generation system, including: an outer cylinder 1, with circular plates 16 fixed at both the top and bottom of the outer cylinder 1; a splicing plate 17 symmetrically fixed to the circular plate 16 at the top of the outer cylinder 1, and a stop block 12 symmetrically fixed to the circular plate 16 at the bottom of the outer cylinder 1; a suspension rope 11 fixed at the center of the top of the circular plate 16; a fuselage 41 fixed in the middle of the inner part of the outer cylinder 1; sonar transmitters 4 symmetrically fixed at both ends of the fuselage 41, with the sonar transmitters 4 extending out of the outer cylinder 1; the fuselage 41 and the sonar transmitters 4 are connected to the circular plates 16, the splicing plates 17, and the... The stop blocks 12 are identical in shape. The top and bottom of the body 41 are fixed with mounting brackets 42, which are fixedly connected to the circular plate 16. A water tank 3 is fixed to the top of the outer cylinder 1. The top of the water tank 3 has a water inlet, and a heating wire is installed inside. The middle part of the water tank 3 is fixedly connected to the suspension rope 11. The sealing assembly 2 includes a top plate 21, located above the circular plate 16 at the top of the outer cylinder 1. Upper arc plates 22 are fixed to both sides of the top plate 21 perpendicular to the splicing plate 17. The upper arc plates 22, the splicing plate 17, and the circular plate 16 form a complete circular plate. The lower arc plate 24 is fixed to the bottom of the upper arc plate 22. The lower arc plate 24 has the same size as the upper arc plate 22. The top plate 21 is slidably sleeved on the surface of the suspension rope 11. A semi-circular frame 33 is fixed to the top of the upper arc plate 22, and two high-pressure air pumps 5 are symmetrically fixed inside the semi-circular frame 33. The bottom of the high-pressure air pumps 5 and the water tank 3 are both fixed with first connecting pipes 37. The upper arc plate 22 and the splicing plate 17 have communication ports corresponding to the positions of the first connecting pipes 37. When using the device, it is deployed into the simulated seabed environment by the suspension rope 11, and the seabed environment is monitored by the sonar transmitter 4. The scanning process utilizes existing technologies such as virtual reality processing software, image processors, vision processors, graphics card chips, and graphics card chips to perform image synthesis, image generative adversarial networks, animation production, and image reconstruction on the data collected by sonar echoes. This technology is the same as that in patent CN118351209A. The sealing component 2 is moved along the inside of the outer cylinder 1 to separate the outer cylinder 1 from the seabed environment. Water from the water tank 3 is sent into the outer cylinder 1, and different water temperatures and pressures inside the outer cylinder 1 are controlled to simulate different working conditions, thereby correcting the sonar data received under different working conditions.

[0021] like Figure 4 , Figure 5 and Figure 6As shown, in some embodiments, the sealing assembly 2 further includes: a turntable 26, a drive motor 27, a gear 28, and a gear ring 29. The turntable 26 is rotatably mounted on the top of the top plate 21. A gear ring 29 is fixed to the upper end of the turntable 26. The gear 28 is meshed with one side of the gear ring 29. The drive motor 27 is fixed to the top of the gear 28 on the top plate 21, and the output end of the drive motor 27 is fixedly connected to the gear 28. The drive motor 27 drives the gear 28 to rotate, and the gear 28 meshes with the gear ring 29. The gear ring 29 switches the water flow. The first connecting pipe 37 of the tank 3 and the high-pressure air pump 5 is connected to the splicing plate 17 and the first arc plate. The bottom of the water tank 3 is slidably installed with a first baffle 211, and the top of the first arc plate is slidably installed with a second baffle 36. The first arc plate is fixed with a limit frame 210 at the outer edge of the second baffle 36, and the second baffle 36 slides along the limit frame 210. The two ends of the first baffle 211 are in contact with the second baffle 36. The first baffle 211 and the second baffle 36 are provided with through holes 212 at the positions of the first connecting pipe 37 of the water tank 3 and the high-pressure air pump 5. In this configuration, the through holes 212 on the first baffle 211 and the second baffle 36 alternately correspond to the first connecting pipe 37. When the through hole 212 of the first baffle 211 connects the first connecting pipe 37 and the connecting port, the through hole 212 of the second baffle 36 is misaligned with the first connecting pipe 37 and the connecting port. A solenoid valve is installed inside the connecting port between the splicing plate 17 and the first arc plate. A vertical frame 38 is fixed on the side of the first baffle 211 facing the turntable 26. The turntable 26 has an outward-facing storage groove 213 corresponding to the position of the vertical frame 38. The inside of the storage groove 213 slides. A sphere 215 is installed, and a second spring 214 is fixed between the sphere 215 and the storage groove 213. The vertical frame 38 has a slot 39 corresponding to the position where the sphere 215 protrudes. During the movement of the top plate 21 along the water tank 3, the sphere 215 is squeezed and stored inside the storage groove 213. After the top plate 21 moves to the top of the circular plate 16, the sphere 215 is pushed out of the storage groove 213 by the elastic force of the second spring 214 and is locked inside the slot 39 of the vertical frame 38. When the turntable 26 rotates, the vertical frame 38 and the first baffle 211 can rotate synchronously.

[0022] It is understandable that when the upper arc plate 22 and the splicing plate 17 are combined, the drive motor 27 drives the gear 28 to rotate and mesh with the gear ring 29. Because the ball 215 is engaged with the slot 39, the vertical frame 38 and the first baffle 211 rotate synchronously with the turntable 26. Due to the squeezing contact between the first baffle 211 and the second baffle 36, the second baffle 36 slides along the limiting frame 210, aligning the through hole 212 of the first baffle 211 with the first connecting pipe 37 and the through hole 212 of the water tank 3. The water inside the water tank 3 can be sent into the outer cylinder 1. The water source can be heated by the heating wire inside the water tank 3. After being sent into the outer cylinder 1, the influence of different water temperature environments on the generation of sonar echo images can be observed. When the through hole 212 of the second baffle 36 is aligned with the first connecting pipe 37 and the connecting port of the high-pressure air pump 5, the high-pressure air pump 5 pressurizes the water inside the outer cylinder 1, thus showing the influence of different water pressure environments on the generation of sonar echo images.

[0023] like Figure 6 , Figure 7 and Figure 8 As shown, in some embodiments, an outer plate 31 is fixed to the outer surface of the water tank 3, and convex strips 32 are symmetrically fixed to the outer surface of the outer plate 31. The bottom of the semi-circular frame 33 is fixedly connected to the upper arc plate 22, and the two ends of the semi-circular frame 33 are slidably sleeved on the convex strips 32. When the upper arc plate 22 moves vertically with the top plate 21, the semi-circular frame 33 leads the high-pressure air pump 5 to slide along the convex strips 32. Electric push rods 6 are fixed on both sides of the top of the water tank 3, and the extended ends of the electric push rods 6 are fixedly connected to the top plate 21. The upper arc plate 22 is moved up and down by the electric push rods 6.

[0024] Understandably, by using the electric push rod 6 to push the upper arc plate 22, the arc frame, and the lower arc plate 24 to move vertically, in the initial stage of sonar generation, the upper arc plate 22 and the top plate 21 move closer to the top of the water tank 3, and the lower arc plate 24 is located at the top of the outer cylinder 1. At this time, seawater from the outside enters the interior of the outer cylinder 1, keeping the environment of the fuselage 41 the same as the surrounding seawater. When switching between different operating conditions, the electric push rod 6 pushes the upper arc plate 22, the arc frame, and the lower arc plate 24 to move downwards. The lower arc plate 24 discharges the seawater in the outer cylinder 1 from the bottom. The upper arc plate 22, together with the splicing plate 17 and the circular plate 16, seals the top of the outer cylinder 1, and the lower arc plate 24, together with the stop block 12 and the circular plate 16, seals the bottom of the outer cylinder 1, thereby forming a separate sealed environment inside the outer cylinder 1.

[0025] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in some embodiments, the water tank 3 and the outer plate 31 have a movable notch 35 at the bottom facing outwards. The outer surface of the water tank 3 is provided with a connecting frame 34, and the bottom of the connecting frame 34 passes through the movable notch 35 and is fixedly connected to the first baffle 211. The top of the connecting frame 34 is fixed with a third baffle 310, which blocks the water inlet of the water tank 3. When the first baffle 211 rotates with the turntable 26, the connecting frame 34 moves along the movable notch 35, and the top of the connecting frame 34 leads the third baffle 310 to move along the top of the water tank 3, opening the water inlet of the water tank 3.

[0026] It should be noted that the connecting frame 34 rotates synchronously with the rotation of the first baffle 211, and leads the third baffle 310 to move along the top of the water tank 3. When the through hole 212 of the first baffle 211 is misaligned with the first connecting pipe 37 of the water tank 3, the third baffle 310 opens the water inlet at the top of the water tank 3, and seawater enters the interior of the water tank 3. The opening of the moving notch 35 can keep the first baffle 211 and the third baffle 310 rotating synchronously without being interfered with by the water tank 3 and the outer plate 31.

[0027] like Figure 3 , Figure 9 and Figure 10 As shown, in some embodiments, an arc frame 23 is fixed to the bottom of the upper arc plate 22 and the top of the lower arc plate 24, and the arc frame 23 slides in contact with the inner wall of the outer cylinder 1. The arc frame 23 is hollow inside. After the upper arc plate 22 moves upward, the space enclosed by the arc frame and the water tank 3 can prevent seawater from entering the upper arc plate 22, the lower arc plate 24, and the arc frame 23. After the upper arc plate 22 moves to a position parallel to the splicing plate 17, the lower arc plate 24 pushes the seawater inside the outer cylinder 1 downward, forming a cavity inside the outer cylinder 1. The baffle 12 is hollow inside, and two ends of the baffle 12 are slidably inserted with insert plates 13, which slide out from the bottom of the baffle 12. A base plate 15 is fixed to the bottom of the plate 13 extending through the stop block 12. A first spring 18 is fixed at an equal distance between the base plate 15 and the bottom surface of the stop block 12. The insert plate 13 can slide through both ends of the stop block 12 to open the hollow part inside the stop block 12, so that the water inside the water tank 3 can evenly fill the entire outer cylinder 1. A protruding plate 14 is fixed to the top of the insert plate 13. A pressing groove 25 is opened on the lower arc plate 24 corresponding to the position of the protruding plate 14. The protruding plate 14 slides into the pressing groove 25. When the lower arc plate 24 moves downward, the pressing groove 25 contacts the protruding plate 14, pushing the protruding plate 14 and the insert plate 13 downward, opening the hollow part inside the stop block 12.

[0028] It should be noted that when the lower arc plate 24 moves downward, it contacts the sonar transmitter 4 and both sides of the baffle 12, discharging the water inside the outer cylinder 1 from the bottom. When it approaches the top of the insert plate 13, the protrusion 14 will insert into the squeezing groove 25. As the lower arc plate 24 continues to move, it pushes the insert plate 13 downward and gradually opens the hollow part of the baffle 12. When the lower arc plate 24 seals the bottom of the outer cylinder 1, water can be added to the outer cylinder 1 through the water tank 3, and the two sides of the outer cylinder 1 can be connected through the hollow part of the baffle 12, thereby avoiding uneven distribution of water temperature and pressure on both sides of the outer cylinder 1. After the lower arc plate 24 moves upward, the bottom plate 15 pushes the insert plates 13 at both ends into the two ends of the baffle 12 by the elastic force of the first spring 18, sealing the hollow part of the baffle 12 and preventing seawater from entering the interior of the baffle 12 and affecting subsequent drainage.

[0029] Working principle: When using the device, it is deployed into a simulated seabed environment via a suspension rope 11. The sonar transmitter 4 scans the seabed environment. When the upper arc plate 22 and the splicing plate 17 merge, the drive motor 27 drives the gear 28 to rotate and mesh with the gear ring 29. Because the ball 215 is engaged with the slot 39, the vertical frame 38 and the first baffle 211 rotate synchronously with the turntable 26. Due to the pressing contact between the first baffle 211 and the second baffle 36, the second baffle 36 slides along the limiting frame 210, aligning the through hole 212 of the first baffle 211 with the first connecting pipe 37 and the through hole 212 of the water tank 3. Water inside the water tank 3 can be sent into the outer cylinder 1. The water source can be heated by the heating wire inside the water tank 3. After being sent into the outer cylinder 1, the water can be... The influence of different water temperature environments on the generation of sonar echo images was investigated. When the through hole 212 of the second baffle 36 was aligned with the first connecting pipe 37 and the connecting port of the high-pressure air pump 5, the water inside the outer cylinder 1 was pressurized by the high-pressure air pump 5. The influence of different water pressure environments on the generation of sonar echo images was investigated. The upper arc plate 22, the arc frame, and the lower arc plate 24 were moved vertically by the electric push rod 6. In the initial stage of sonar generation, the upper arc plate 22 and the top plate 21 moved closer to the top of the water tank 3, and the lower arc plate 24 was located at the top of the outer cylinder 1. At this time, seawater from the outside entered the interior of the outer cylinder 1, keeping the environment of the fuselage 41 the same as the surrounding seawater. When switching between different operating conditions, the electric push rod 6 pushed the upper arc plate 22, the arc frame, and the lower arc plate 24 downward. The lower arc plate 24 pushed the outer cylinder downward. Seawater in section 1 is discharged from the bottom. The upper arc plate 22, together with the splicing plate 17 and the circular plate 16, seals the top of the outer cylinder 1. The lower arc plate 24, together with the stop block 12 and the circular plate 16, seals the bottom of the outer cylinder 1, thus forming a separate sealed environment inside the outer cylinder 1. When the lower arc plate 24 moves downward, it contacts the sonar transmitter 4 and both sides of the stop block 12, discharging the water inside the outer cylinder 1 from the bottom. When it approaches the top of the insert plate 13, the protruding plate 14 inserts into the squeezing groove 25. As the lower arc plate 24 continues to move, it pushes the insert plate 13 downward and gradually opens the hollow part of the stop block 12. Thus, when the lower arc plate 24 seals the bottom of the outer cylinder 1, water can be added to the outer cylinder 1 through the water tank 3, and the two sides of the outer cylinder 1 can be connected through the hollow part of the stop block 12, thereby preventing the outer cylinder from being blocked. The water temperature and pressure distribution on both sides is uneven. After the lower arc plate 24 moves upward, the bottom plate 15 pushes the insert plates 13 at both ends into the ends of the baffle 12 through the elastic force of the first spring 18, sealing the hollow part of the baffle 12 and preventing seawater from entering the interior of the baffle 12 and affecting subsequent drainage. The connecting frame 34 rotates synchronously with the rotation of the first baffle 211 and leads the third baffle 310 to move along the top of the water tank 3. When the through hole 212 of the first baffle 211 is misaligned with the first connecting pipe 37 of the water tank 3, the third baffle 310 opens the water inlet at the top of the water tank 3, allowing seawater to enter the interior of the water tank 3. The opening of the moving notch 35 can keep the first baffle 211 and the third baffle 310 rotating synchronously without being interfered with by the water tank 3 and the outer plate 31.By utilizing existing technologies such as virtual reality processing software, image processors, vision processors, graphics card chips, and graphics card chips, the data collected by sonar echoes is processed through image synthesis, image generative adversarial networks, animation production, and image reconstruction. Different water temperatures and pressures inside the outer cylinder 1 are controlled to simulate different working conditions, and the sonar data received under these different conditions is corrected.

[0030] In the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0031] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0032] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A multi-condition simulated sonar echo image generation system, characterized in that, include: The outer cylinder (1) and sealing assembly (2) are provided. The top and bottom of the outer cylinder (1) are fixed with circular plates (16). The circular plates (16) at the top of the outer cylinder (1) are symmetrically fixed with splicing plates (17), and the circular plates (16) at the bottom of the outer cylinder (1) are symmetrically fixed with stoppers (12). The center of the top of the circular plates (16) is fixed with a hanging rope (11). The outer cylinder (1) has a fuselage (41) fixed in the middle position inside. Sonar transmitters (4) are symmetrically fixed at both ends of the fuselage (41), and the sonar transmitters (4) protrude from the outer cylinder (1). The fuselage (41) and the sonar transmitters (4) have the same shape as the circular plate (16), the splicing plate (17) and the stop block (12). The top and bottom of the fuselage (41) are fixed with a fixing frame (42), and the fixing frame (42) is fixedly connected to the circular plate (16). A water tank (3) is fixed to the top of the outer cylinder (1). The top of the water tank (3) has a water inlet, and an electric heating wire is installed inside the water tank (3). The middle part of the water tank (3) is fixedly connected to the hanging rope (11). The sealing assembly (2) includes a top plate (21), which is located at the top end of the circular plate (16) of the outer cylinder (1). The top plate (21) is fixed with upper arc plates (22) on both sides perpendicular to the splicing plate (17). The upper arc plates (22), the splicing plate (17) and the circular plate (16) form a complete circular plate. The bottom of the upper arc plate (22) is fixed with a lower arc plate (24). The lower arc plate (24) has the same size as the upper arc plate (22). The top plate (21) is slidably sleeved on the surface of the suspension rope (11). The top of the upper arc plate (22) is fixed with a semi-circular frame (33), and two high-pressure air pumps (5) are symmetrically fixed inside the semi-circular frame (33). The bottom of the high-pressure air pump (5) and the water tank (3) are both fixed with a first connecting pipe (37). The upper arc plate (22) and the splicing plate (17) are provided with a communication port corresponding to the position of the first connecting pipe (37).

2. The simulated sonar echo image generation system under multiple operating conditions according to claim 1, characterized in that, The sealing assembly (2) further includes: Turntable (26), drive motor (27), gear (28), gear ring (29). The turntable (26) is rotatably mounted on the top of the top plate (21). The upper end of the turntable (26) is fixed with a gear ring (29). One side of the gear ring (29) is meshed with a gear (28). The top plate (21) is located on the top of the gear (28) and the drive motor (27) is fixedly mounted on it. The output end of the drive motor (27) is fixedly connected to the gear (28). The drive motor (27) drives the gear (28) to rotate. The gear (28) meshes with the gear ring (29). The gear ring (29) switches the connection between the first connecting pipe (37) of the water tank (3) and the high-pressure air pump (5) and the splicing plate (17) and the first arc plate communication port.

3. The simulated sonar echo image generation system under multiple operating conditions according to claim 2, characterized in that, A first baffle (211) is slidably installed at the bottom of the water tank (3), and a second baffle (36) is slidably installed at the top of the first arc plate. A limit frame (210) is fixed at the outer edge of the first arc plate and the second baffle (36) slides along the limit frame (210). The two ends of the first baffle (211) are pressed and contacted with the second baffle (36). The first baffle (211) and the second baffle (36) are provided with through holes (212) at the positions of the first connecting pipe (37) of the water tank (3) and the high-pressure air pump (5). Among them, the through holes (212) on the first baffle (211) and the second baffle (36) are alternately corresponding to the first connecting pipe (37). When the through hole (212) of the first baffle (211) connects the first connecting pipe (37) and the connecting port, the through hole (212) of the second baffle (36) is misaligned with the first connecting pipe (37) and the connecting port. A solenoid valve is installed inside the connecting port of the splicing plate (17) and the first arc plate.

4. The simulated sonar echo image generation system under multiple operating conditions according to claim 3, characterized in that, A vertical frame (38) is fixed on the side of the first baffle (211) facing the turntable (26). The turntable (26) has an outward-facing storage groove (213) at the position corresponding to the vertical frame (38). A ball (215) is slidably installed inside the storage groove (213). A second spring (214) is fixed between the ball (215) and the storage groove (213). A slot (39) is opened on the vertical frame (38) at the position where the ball (215) passes through. During the movement of the top plate (21) along the water tank (3), the sphere (215) is squeezed and stored inside the storage groove (213). After the top plate (21) moves to the top of the circular plate (16), the sphere (215) is pushed out of the storage groove (213) by the elastic force of the second spring (214) and is locked inside the slot (39) of the vertical frame (38). When the turntable (26) rotates, the vertical frame (38) and the first baffle (211) can rotate synchronously.

5. The simulated sonar echo image generation system under multiple operating conditions according to claim 4, characterized in that, The outer surface of the water tank (3) is fixed with an outer plate (31), and the outer surface of the outer plate (31) is symmetrically fixed with protrusions (32). The bottom of the semicircular frame (33) is fixedly connected to the upper arc plate (22), and the two ends of the semicircular frame (33) are slidably sleeved on the protrusions (32). When the upper arc plate (22) moves vertically along the top plate (21), the semi-circular frame (33) leads the high-pressure air pump (5) to slide along the convex strip (32).

6. The simulated sonar echo image generation system under multiple operating conditions according to claim 5, characterized in that, The water tank (3) and the outer plate (31) have a movable notch (35) at the bottom facing outward. A connecting frame (34) is provided on the outer surface of the water tank (3), and the bottom of the connecting frame (34) passes through the movable notch (35) and is fixedly connected to the first baffle (211). A third baffle (310) is fixed on the top of the connecting frame (34), and the third baffle (310) blocks the water inlet of the water tank (3). When the first baffle (211) rotates with the turntable (26), the connecting frame (34) moves along the moving notch (35), and the top of the connecting frame (34) leads the third baffle (310) to move along the top of the water tank (3), opening the water inlet of the water tank (3).

7. The simulated sonar echo image generation system under multiple operating conditions according to claim 6, characterized in that, Electric push rods (6) are fixed on both sides of the top of the water tank (3), and the extended ends of the electric push rods (6) are fixedly connected to the top plate (21). The upper arc plate (22) is moved up and down by the electric push rod (6).

8. The simulated sonar echo image generation system under multiple operating conditions according to claim 7, characterized in that, The bottom of the upper arc plate (22) and the top of the lower arc plate (24) are fixed with an arc frame (23), and the arc frame (23) slides in contact with the inner wall of the outer cylinder (1). The arc frame (23) is hollow inside. Among them, after the upper arc plate (22) moves upward, the space enclosed by the arc frame (23) and the water tank (3) can prevent seawater from entering the upper arc plate (22), the lower arc plate (24) and the arc frame (23). After the upper arc plate (22) moves to a position parallel to the splicing plate (17), the lower arc plate (24) pushes the seawater inside the outer cylinder (1) downward to form a cavity inside the outer cylinder (1).

9. The simulated sonar echo image generation system under multiple operating conditions according to claim 8, characterized in that, The block (12) is hollow inside. Insert plates (13) are slidably inserted into both ends of the block (12), and the insert plates (13) slide out from the bottom of the block (12). A base plate (15) is fixed to the bottom of the block (12) through the two insert plates (13). A first spring (18) is fixed at an equal distance between the base plate (15) and the bottom surface of the block (12). The insert plate (13) can slide out from both ends of the stop block (12) to open the hollow part inside the stop block (12), so that the water inside the water tank (3) can evenly fill the entire outer cylinder (1).

10. The simulated sonar echo image generation system under multiple operating conditions according to claim 9, characterized in that: The top of the insert plate (13) is fixed with a protruding plate (14), and the lower arc plate (24) is provided with an extrusion groove (25) corresponding to the position of the protruding plate (14). The protruding plate (14) slides into the extrusion groove (25). When the lower arc plate (24) moves downward, the extrusion groove (25) contacts the protruding plate (14), pushing the protruding plate (14) and the insert plate (13) downward, thus opening the internal hollow of the stop block (12).

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