Multi-degree-of-freedom corner reflector for target ship
By designing a multi-degree-of-freedom angle reflector on the target ship and utilizing a combination of a rotating mechanism and an adjustable angle reflector, the problem that radar reflectors cannot fully reflect the target's position was solved, enabling all-around signal monitoring and precise positioning.
Patent Information
- Application Number
- CN202520205400.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-10
AI Technical Summary
The existing radar reflectors on target ships cannot fully and accurately reflect the target's location and characteristics, resulting in blind spots and insufficient accuracy.
Design a multi-degree-of-freedom angle reflector, including a bracket assembly arranged on a target ship. Each bracket assembly is equipped with a rotation mechanism and a fixed frame. Rectangular and pitch-adjustable triangular reflectors are installed on the fixed frames. Through circumferential distribution and angle adjustment, all-round signal monitoring and reflection can be achieved.
It effectively reduces detection blind spots, improves the comprehensiveness and uniformity of signal monitoring, can accurately locate the position of target ships, and enhances the detection and positioning capabilities of the radar system.
Smart Images
Figure CN223897633U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of radar reflector technology, specifically a multi-degree-of-freedom angle reflector for use on target ships. Background Technology
[0002] The target ship is an unmanned experimental vessel at sea. The development and product iteration of the target ship are of great significance to the development of naval equipment technology and the improvement of combat capabilities. The radar scattering array on the target ship is an important component of the radar system. It is responsible for emitting electromagnetic waves and receiving reflected waves from the target, thereby realizing the detection and positioning of the target. However, if only a single reflector unit is used to receive the reflected waves of the target, there are limitations. It may not be able to fully and accurately reflect the position and characteristics of the target, and the accuracy cannot be guaranteed. Utility Model Content
[0003] The present invention aims to solve the above problems, thereby providing a multi-degree-of-freedom angle reflector for target ships that can deal with multiple targets on the same side.
[0004] The technical solution adopted by this utility model to solve the aforementioned problem is:
[0005] A multi-degree-of-freedom angle reflector for a target ship includes several support groups arranged on the target ship. Each support group has a rotating mechanism at its top, and a fixed frame at its top. A rectangular angle reflector is horizontally arranged on the side of the fixed frame. The support groups cooperate with each other to make the rectangular angle reflectors distributed around each other in the horizontal direction. A triangular angle reflector with adjustable pitch angle is arranged at the top of the fixed frame.
[0006] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:
[0007] In normal use, the rectangular corner reflectors distributed around the perimeter efficiently reflect horizontal signals, reducing horizontal detection blind spots. The triangular corner reflectors with adjustable pitch angles can more effectively receive radar electromagnetic waves from different heights or incident angles. In conjunction with the rectangular corner reflectors, they fill the signal reflection gaps in the top area of the rectangular corner reflectors, making the overall signal monitoring and reflection more comprehensive and uniform. When the signal position of a target ship is detected, the rectangular corner reflectors and triangular corner reflectors facing other directions are rotated to face the target direction for effective response and accurate positioning of the target ship.
[0008] As a preferred embodiment, a further technical solution of this utility model is:
[0009] Furthermore, each support assembly includes three columns arranged in a triangular pattern. Support arms are provided on the inner top of the columns in a horizontal direction. A positioning frame is provided between the support arms, and a positioning plate is provided inside the positioning frame. The triangularly distributed columns provide stable support.
[0010] Furthermore, support ribs are provided on both sides of the top of the column and between the bottom of the positioning frame. These support ribs enhance the load-bearing capacity of the positioning frame and prevent deformation.
[0011] Furthermore, a pad is installed at the bottom of the column to prevent damage to the deck.
[0012] Furthermore, the rotating mechanism includes a thrust bearing. A connecting hole is provided in the middle of the positioning plate, and the thrust bearing is installed in the connecting hole. The outer ring of the thrust bearing is located above the positioning plate and has teeth on its outer circumference. A drive motor is fixed on one side of the bottom of the positioning frame. The output end of the drive motor passes through the positioning plate upward and is connected to drive teeth. The drive teeth mesh with the outer ring of the thrust bearing. A support plate is fixed on the top of the outer ring of the thrust bearing. The drive motor drives the outer ring of the thrust bearing to rotate, thereby driving the support plate to rotate, so that the fixed frame rotates accordingly.
[0013] Furthermore, the fixed frame is a regular hexagonal prism frame and fixed on the support plate. The rectangular corner reflectors are fixed on two adjacent side positions of the fixed frame. Two rectangular corner reflectors on each side of the three fixed frames reduce the horizontal detection blind zone.
[0014] Furthermore, the bottom center of the triangular corner reflector is hinged to the top of the side of the fixed frame where the two rectangular corner reflectors are located, respectively. A cylinder is hinged inside the fixed frame, and the output end of the cylinder is hinged to the vertex of the triangular corner reflector. The pitch angle of the triangular corner reflector is adjusted by the cylinder. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the exploded structure of an embodiment of the present utility model;
[0016] Figure 2 This is a schematic diagram of the main structure of an embodiment of the present utility model;
[0017] Figure 3 This is a top view of a single support assembly according to an embodiment of the present invention;
[0018] Figure 4 This is a top view of the structure of the three support groups in an embodiment of the present invention;
[0019] The components in the diagram are labeled as follows: bracket group 1, column 11, support arm 12, positioning frame 13, positioning plate 14, pad 15, fixing frame 2, rectangular corner reflector 3, triangular corner reflector 4, thrust bearing 5, drive motor 6, cylinder 7, and support plate 8. Detailed Implementation
[0020] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.
[0021] A multi-degree-of-freedom angle reflector for a target ship includes several support groups 1 arranged on the target ship. In this embodiment, three support groups 1 are provided. Each support group 1 has a rotating mechanism on its top. The rotating mechanism has a fixed frame 2 on its top. The rotating mechanism drives the fixed frame 2 to rotate. Rectangular angle reflectors 3 are horizontally arranged on the side of the fixed frame 2. The support groups 1 cooperate with each other to make the rectangular angle reflectors 3 distributed around each other in the horizontal direction. The fixed frame 2 has a triangular angle reflector 4 with adjustable pitch angle on its top. Each reflector on each support group 1 is a unit. When the signal position of the target ship is detected, the required number of units are rotated to the target direction by rotating the fixed frame 2.
[0022] Furthermore, each support group 1 includes three columns 11 arranged in a triangular shape. Support arms 12 are arranged horizontally on the inner top of the columns 11. A positioning frame 13 is arranged between the support arms 12. The positioning frame 13 is triangular and a positioning plate 14 is arranged inside the positioning frame 13. The columns 11 are stably supported by the triangular arrangement.
[0023] Furthermore, support ribs are provided on both sides of the top of the column 11 and the bottom of the positioning frame 13 respectively. The support ribs enhance the load-bearing capacity of the positioning frame 13 and prevent deformation.
[0024] Furthermore, a pad 15 is provided at the bottom of the column 11 to prevent damage to the deck.
[0025] Furthermore, the rotating mechanism includes a thrust bearing 5. A connecting hole is provided in the middle of the positioning plate 14, and the thrust bearing 5 is disposed in the connecting hole. The outer ring of the thrust bearing 5 is located above the positioning plate 14 and has teeth on its outer circumference. A drive motor 6 is fixed on one side of the bottom of the positioning frame 13. The output end of the drive motor 6 passes through the positioning plate 14 upward and is connected to drive teeth. The drive teeth mesh with the outer ring of the thrust bearing 5. A support plate 8 is fixed on the top of the outer ring of the thrust bearing 5. The fixed frame 2 is fixed on the support plate 8. The drive motor 6 drives the outer ring of the thrust bearing 5 to rotate, thereby driving the support plate 8 to rotate, so that the fixed frame 2 rotates accordingly.
[0026] Furthermore, the fixed frame 2 is a regular hexagonal prism frame and is fixed on the support plate 8. The rectangular corner reflectors 3 are fixed on two adjacent side positions of the fixed frame 2. Two rectangular corner reflectors 3 on each side of the three fixed frames 2 reduce the detection blind zone in the horizontal direction. In this embodiment, three bracket groups 1 are arranged in a triangular shape. Two rectangular corner reflectors 3 and one triangular corner reflector 4 are set on the fixed frame 2 of each bracket group 1. The projection of the triangular corner reflector 4 in the horizontal direction is consistent with the orientation of the two rectangular corner reflectors 3. The six rectangular corner reflectors 3 are distributed on the surfaces of the three fixed frames 2 at different angles. The three bracket groups 1 cooperate to arrange the reflectors around each other, reducing the detection blind zone.
[0027] Furthermore, the bottom center of the triangular corner reflector 4 is hinged to the top of the side of the fixed frame 2 where the two rectangular corner reflectors 3 are located, respectively. A cylinder 7 is hinged inside the fixed frame 2, and the output end of the cylinder 7 is hinged to the vertex of the triangular corner reflector 4. The pitch angle of the triangular corner reflector 4 is adjusted by the cylinder 7.
[0028] In normal use, the rectangular corner reflectors distributed around the perimeter efficiently reflect horizontal signals, reducing horizontal detection blind spots. The triangular corner reflectors with adjustable pitch angles can more effectively receive radar electromagnetic waves from different heights or incident angles. In conjunction with the rectangular corner reflectors, they fill the signal reflection gaps in the top area of the rectangular corner reflectors, making the overall signal monitoring and reflection more comprehensive and uniform. When the signal position of a target ship is detected, the rectangular corner reflectors and triangular corner reflectors facing other directions are rotated to face the target direction for effective response and accurate positioning of the target ship.
[0029] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.
Claims
1. A multi-degree-of-freedom angular reflector for use on a target ship, characterized in that: It includes several support groups arranged on the target ship. Each support group is equipped with a rotating mechanism at the top, and a fixed frame is set at the top of the rotating mechanism. A rectangular corner reflector is horizontally set on the side of the fixed frame. The support groups cooperate with each other to make the rectangular corner reflectors distributed around each other in the horizontal direction. A triangular corner reflector with adjustable pitch angle is set at the top of the fixed frame.
2. The multi-degree-of-freedom angular reflector for a target ship according to claim 1, characterized in that: Each support group consists of three columns arranged in a triangular pattern. Support arms are installed on the inner top of the columns in a horizontal direction. A positioning frame is installed between the support arms, and a positioning plate is installed inside the positioning frame.
3. The multi-degree-of-freedom angular reflector for a target ship according to claim 2, characterized in that: Support ribs are provided on both sides of the top of the column and between the bottom of the positioning frame.
4. The multi-degree-of-freedom angular reflector for a target ship according to claim 2, characterized in that: A base plate is installed at the bottom of the column.
5. The multi-degree-of-freedom angular reflector for a target ship according to claim 2, characterized in that: The rotating mechanism includes a thrust bearing. A connecting hole is provided in the middle of the positioning plate. The thrust bearing is installed in the connecting hole. The outer ring of the thrust bearing is located above the positioning plate and has teeth on its outer circumference. A drive motor is fixed on one side of the bottom of the positioning frame. The output end of the drive motor passes through the positioning plate upward and is connected to drive teeth. The drive teeth mesh with the outer ring of the thrust bearing. A support plate is fixed on the top of the outer ring of the thrust bearing.
6. The multi-degree-of-freedom angular reflector for a target ship according to claim 5, characterized in that: The fixed frame is a regular hexagonal prism frame and is fixed on the support plate. The rectangular corner reflectors are fixed on two adjacent sides of the fixed frame.
7. The multi-degree-of-freedom angular reflector for a target ship according to claim 6, characterized in that: The bottom center of the triangular corner reflector is hinged to the top of the side of the fixed frame containing the two rectangular corner reflectors on both sides. A cylinder is hinged inside the fixed frame, and the output end of the cylinder is hinged to the vertex of the triangular corner reflector.