Synthetic aperture laser imaging radar cross focusing imaging device

Abstract

The embodiment of the utility model provides a cross focusing imaging device for a synthetic aperture laser imaging radar, and relates to the technical field of synthetic aperture laser imaging radar. The cross focusing imaging device of the synthetic aperture laser imaging radar comprises a radar body, a mounting plate is mounted at the upper end of the radar body through bolts, a laser transmitter and a laser receiver are mounted on the mounting plate, an extension plate is fixedly arranged on one side of the mounting plate, and a reflector is inserted in the center of the extension plate. The lens and the reflector are sequentially installed at the front end of the laser transmitter, a laser beam is focused through the lens and is focused to a small point, the energy density and the resolution are improved, the reflector adjusts the direction of the laser beam, the laser beam can scan different target areas, multi-angle imaging is achieved, and the imaging precision is improved. The combination of the reflector and the lens enables the radar body to better adapt to various complex environments, and the front and back positions of the lens and the reflector are adjusted by using the adjusting mechanism, thereby facilitating the imaging adjustment according to the use requirements.

Description

Technical Field

[0001] This utility model relates to the field of synthetic aperture laser imaging radar technology, and in particular to a synthetic aperture laser imaging radar cross-focusing imaging device. Background Technology

[0002] Synthetic Aperture Laser Imaging Radar (SAR) cross-focusing imaging is an advanced remote sensing technology used for high-resolution ground target imaging. This technology combines the advantages of Synthetic Aperture Radar (SAR) and Laser Imaging Radar (LIDR), achieving high-precision, high-resolution imaging through cross-focusing technology.

[0003] In traditional laser imaging radar systems, a single optical element (such as a lens or mirror) is typically used to focus and adjust the direction of the laser beam. While this configuration can meet basic imaging requirements to a certain extent, it presents the following problems in complex environments and applications requiring high precision: a single optical element cannot simultaneously achieve high energy density and high resolution, resulting in limited image quality; and in complex environments, a single optical element cannot adapt to different imaging needs, affecting the overall performance of the system.

[0004] Although some advanced laser imaging radar systems have introduced multi-component designs, the following shortcomings still exist: the lack of an effective adjustment mechanism makes it difficult to quickly adjust the optical components according to actual needs during use; the fixed-position optical components cannot flexibly adjust the direction of the laser beam, limiting the ability to perform multi-angle imaging. Utility Model Content

[0005] The purpose of this invention is to provide a synthetic aperture laser imaging radar cross-focusing imaging device, which can avoid the situation where traditional laser imaging radar systems lack effective adjustment mechanisms, making it difficult to quickly adjust optical components according to actual needs during use, and fixed-position optical components cannot flexibly adjust the direction of the laser beam, thus limiting the ability to perform multi-angle imaging.

[0006] This utility model provides a synthetic aperture laser imaging radar cross-focusing imaging device, including a radar body. A mounting plate is bolted to the upper end of the radar body. A laser transmitter and a receiver are mounted on the mounting plate. An extension plate is fixedly provided on one side of the mounting plate. A reflector is inserted into the center of the extension plate. An adjustment mechanism is rotatably mounted on the upper surface of the extension plate. A lens is mounted on the adjustment mechanism. The adjustment mechanism can adjust the position of the lens.

[0007] Preferably, a positioning cylinder is fixedly provided at the center of the extension plate, and the lower end of the reflector is inserted into the positioning cylinder.

[0008] Preferably, the adjustment mechanism includes a gear ring located on the upper side of the extension plate, a rotating ring provided on the lower side of the gear ring, the rotating ring being rotatably connected to a rotating groove opened on the extension plate, and a driving wheel being rotatably provided on one side of the extension plate, the driving wheel meshing with the gear ring.

[0009] Preferably, a hollow cylinder is rotatably provided at the upper end of the gear ring, and the lower end of the lens is inserted into the hollow cylinder.

[0010] Preferably, a first gear is connected to the outer side of the hollow cylinder, and a second gear is rotatably provided at the upper end of the gear ring. The first gear and the second gear mesh, and the second gear is driven by a motor.

[0011] Preferably, both the lens and the reflector have an insert block at their upper ends.

[0012] Preferably, both sides of the extension plate are provided with slide rails, and a positioning plate is slidably arranged in the slide rails. A lead screw is rotatably arranged in one of the slide rails and is threadedly connected to the positioning plate. A positioning hole is opened at the center of the positioning plate and is inserted into the insertion block at the upper end of the reflector.

[0013] Preferably, the positioning plate has an annular groove near the outer side, and a sliding sleeve is slidably disposed in the annular groove, which is engaged with the insert block at the upper end of the lens.

[0014] Preferably, the insert at the upper end of the lens can rotate within the sliding sleeve.

[0015] Preferably, a slider is provided on one side of the sliding sleeve, and the slider slides in a limiting groove opened in the inner wall of the annular groove.

[0016] This utility model provides a synthetic aperture laser imaging radar cross-focusing imaging device, which, compared with the prior art:

[0017] 1. This utility model installs a lens and a reflector sequentially at the front end of a laser transmitter. The laser beam is focused by the lens to a small point, improving energy density and resolution. The reflector adjusts the direction of the laser beam, allowing it to scan different target areas and achieve multi-angle imaging. The combination of the reflector and lens enables the radar body to better adapt to various complex environments. At the same time, the adjustment mechanism adjusts the front and rear positions of the lens and reflector, facilitating imaging adjustment according to usage requirements.

[0018] 2. This utility model uses a positioning plate to position the lens and reflector, improving the stability of their installation and facilitating their assembly and disassembly. It also does not affect the adjustment mechanism's rotation with the lens, thus improving the device's convenience. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram showing the overall structure of an embodiment of the present utility model.

[0022] Figure 3 This is a side view of the laser emitter structure according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the top plate and other structures in an embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram showing the disassembled structure of the lens and extension plate according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the gear ring structure according to an embodiment of the present utility model;

[0026] Figure 7 This is a schematic diagram of the annular groove structure according to an embodiment of the present utility model;

[0027] Figure 8 This is a schematic diagram of the sliding sleeve structure according to an embodiment of the present utility model.

[0028] icon:

[0029] 1. Radar body; 2. Mounting plate; 3. Receiver; 4. Laser emitter; 5. Extension plate; 6. Positioning cylinder; 7. Reflector; 8. Gear ring; 9. Hollow cylinder; 10. Gear 1; 11. Gear 2; 12. Drive wheel; 13. Rotary ring; 14. Lens; 15. Insert block; 16. Slide rail; 17. Lead screw; 18. Positioning plate; 19. Positioning hole; 20. Annular groove; 21. Sliding sleeve; 22. Limiting groove; 23. Slider. Detailed Implementation

[0030] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0031] Please refer to Figures 1 to 8This utility model provides a synthetic aperture laser imaging radar cross-focusing imaging device, including a radar body 1. A mounting plate 2 is bolted to the upper end of the radar body 1. A laser transmitter 4 and a receiver 3 are mounted on the mounting plate 2. The laser transmitter 4 is responsible for generating and emitting high-precision laser pulses, controlling laser parameters, ensuring the effectiveness of long-distance detection and high-resolution imaging. The receiver 3 is responsible for receiving the laser signal reflected from the target, converting it into an electrical signal, performing preliminary processing, extracting useful information, and ensuring the accuracy and integrity of the data.

[0032] An extension plate 5 is fixedly installed on one side of the mounting plate 2. A reflector 7 is inserted into the center of the extension plate 5. A positioning cylinder 6 is fixedly installed at the center of the extension plate 5. The lower end of the reflector 7 is inserted into the positioning cylinder 6, which facilitates the installation and removal of the reflector 7.

[0033] An adjustment mechanism is rotatably mounted on the upper surface of the extension plate 5. A lens 14 is mounted on the adjustment mechanism. The adjustment mechanism can adjust the position of the lens 14 to facilitate imaging adjustment according to usage requirements.

[0034] When lens 14 is placed at the front end of laser emitter 4, it is suitable for applications requiring high energy density and high collimation, providing better focusing and collimation, and is suitable for long-distance and high-precision imaging.

[0035] When the reflector 7 is placed at the front end of the laser emitter 4, it is suitable for applications that require flexible adjustment of the laser beam direction, providing better direction adjustment capabilities and optical path optimization, and is suitable for multi-angle scanning and applications in complex environments.

[0036] Specifically, the adjustment mechanism includes a gear ring 8 located on the upper side of the extension plate 5, a rotating ring 13 located on the lower side of the gear ring 8, the rotating ring 13 being rotatably connected to a rotating groove opened on the extension plate 5, and a drive wheel 12 being rotatably arranged on one side of the extension plate 5. After being driven by a motor, the drive wheel 12 meshes with the gear ring 8.

[0037] Since the upper end of the gear ring 8 is provided with a hollow cylinder 9, and the lower end of the lens 14 is inserted into the hollow cylinder 9, when the gear ring 8 rotates, the lens 14 can be rotated to the front or rear end of the reflector 7, so that the lens 14 is located at the front end of the laser emitter 4 or the reflector 7 is located at the front end of the laser emitter 4.

[0038] Furthermore, a gear 10 is connected to the outside of the hollow cylinder 9, and a gear 21 is rotatably provided at the upper end of the gear ring 8. The gear 211 is driven by a motor to make the gear 10 and the gear 21 mesh, causing the hollow cylinder 9 to rotate with the lens 14, thereby adjusting the front and back of the lens 14.

[0039] To facilitate disassembly and assembly, insert blocks 15 are provided at the upper ends of both lens 14 and reflector 7.

[0040] Both sides of the extension plate 5 are provided with slide rails 16, and a positioning plate 18 is slidably arranged in the slide rails 16. The positioning plate 18 is a circular mechanism. A lead screw 17 is rotatably arranged in one of the slide rails 16. The lead screw 17 is threadedly connected to the positioning plate 18. When the lead screw 17 rotates, the positioning plate 18 moves downward. The positioning hole 19 opened at the center of the positioning plate 18 is inserted and engaged with the insert block 15 at the upper end of the reflector 7. The reflector 7 is fixed by the positioning plate 18.

[0041] Furthermore, an annular groove 20 is provided near the outer side of the positioning plate 18. A sliding sleeve 21 is slidably disposed in the annular groove 20. The sliding sleeve 21 is inserted into the upper end of the lens 14. At the same time, the upper end of the lens 14 can rotate within the sliding sleeve 21. The size of the sliding sleeve 21 is larger than the size of the insert 15. The size of the hollow cylinder 9 matches the size of the lower end of the lens 14, which can satisfy the requirement that the rotation of the hollow cylinder 9 causes the lens 14 to rotate and the insert 15 to rotate within the sliding sleeve 21. Alternatively, fasteners can be provided inside the hollow cylinder 9 to fix the lens 14, so that when the hollow cylinder 9 rotates, it drives the lens 14 to rotate within the sliding sleeve 21. When the gear ring 8 rotates, the lens 14 drives the sliding sleeve 21 to slide within the annular groove 20.

[0042] In addition, a slider 23 is provided on one side of the sliding sleeve 21. The slider 23 slides in the limiting groove 22 opened in the inner wall of the annular groove 20 to prevent the sliding sleeve 21 from separating from the annular groove 20.

[0043] In summary, the working principle of the synthetic aperture laser imaging radar cross-focusing imaging device of this utility model embodiment is as follows: the gear ring 8 rotates the lens 14 to the front end of the reflector 7 by meshing the drive wheel 12 with the gear ring 8, and then the hollow cylinder 9 rotates the lens 14 by meshing the gear 10 and the gear 11, adjusting the front and rear of the lens 14. At the same time, the positioning plate 18 is used to position the lens 14 and the reflector 7, improving their stability and making them easy to disassemble and assemble.

[0044] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A synthetic aperture laser imaging radar cross-focusing imaging device, comprising a radar body (1), characterized in that: The upper end of the radar body (1) is bolted with a mounting plate (2). A laser transmitter (4) and a receiver (3) are mounted on the mounting plate (2). An extension plate (5) is fixedly installed on one side of the mounting plate (2). A reflector (7) is inserted into the center of the extension plate (5). An adjustment mechanism is rotatably mounted on the upper surface of the extension plate (5). A lens (14) is mounted on the adjustment mechanism. The adjustment mechanism can adjust the position of the lens (14).

2. The synthetic aperture laser imaging radar cross-focusing imaging device according to claim 1, characterized in that: A positioning cylinder (6) is fixedly installed at the center of the extension plate (5), and the lower end of the reflector (7) is inserted into the positioning cylinder (6).

3. The synthetic aperture laser imaging radar cross-focusing imaging device according to claim 1, characterized in that: The adjustment mechanism includes a gear ring (8) located on the upper side of the extension plate (5), a rotating ring (13) is provided on the lower side of the gear ring (8), the rotating ring (13) is rotatably connected to the rotating groove opened on the extension plate (5), and a driving wheel (12) is rotatably provided on one side of the extension plate (5), the driving wheel (12) meshes with the gear ring (8).

4. The synthetic aperture laser imaging radar cross-focusing imaging device according to claim 3, characterized in that: The upper end of the gear ring (8) is rotatably provided with a hollow cylinder (9), and the lower end of the lens (14) is inserted into the hollow cylinder (9).

5. The synthetic aperture laser imaging radar cross-focusing imaging device according to claim 4, characterized in that: Gear 1 (10) is connected to the outside of the hollow cylinder (9), and gear 2 (11) is rotatably provided at the upper end of the gear ring (8). Gear 1 (10) and gear 2 (11) mesh, and gear 2 (11) is driven by a motor.

6. The synthetic aperture laser imaging radar cross-focusing imaging device according to claim 5, characterized in that: Both the lens (14) and the reflector (7) are provided with inserts (15) at their upper ends.

7. The synthetic aperture laser imaging radar cross-focusing imaging device according to claim 6, characterized in that: The extension plate (5) is provided with slide rails (16) on both sides. A positioning plate (18) is slidably provided in the slide rail (16). A lead screw (17) is rotatably provided in one of the slide rails (16). The lead screw (17) is threadedly connected to the positioning plate (18). A positioning hole (19) is provided at the center of the positioning plate (18). The positioning hole (19) is inserted into the upper end of the reflector (7) and engages with the insert block (15).

8. The synthetic aperture laser imaging radar cross-focusing imaging device according to claim 7, characterized in that: The positioning plate (18) has an annular groove (20) near the outer side, and a sliding sleeve (21) is slidably disposed in the annular groove (20). The sliding sleeve (21) is inserted into the insert block (15) at the upper end of the lens (14).

9. The synthetic aperture laser imaging radar cross-focusing imaging device according to claim 8, characterized in that: The insert (15) at the upper end of the lens (14) can rotate within the sliding sleeve (21).

10. The synthetic aperture laser imaging radar cross-focusing imaging device according to claim 9, characterized in that: A slider (23) is provided on one side of the sliding sleeve (21), and the slider (23) slides in the limiting groove (22) opened in the inner wall of the annular groove (20).

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