Radar detection calibration device

Abstract

The utility model provides a radar detection calibration device which comprises a first fixing ring, a fixing frame is fixedly arranged on the outer wall of one side of the first fixing ring, and a vertical plate is arranged on one side of the fixing frame through an adjusting mechanism. Electric heating wires are installed in the fixing columns and the bottom plate, so that the corner reflector can be heated in the snowy weather, accumulated snow on the corner reflector is melted, the accuracy of angle radar detection and calibration in the snowy weather is guaranteed, the practicability is high, the stability of the corner reflector can be improved through a cross rod and a base plate, and the practicability is high. The pitch angle of the corner reflector can be adjusted through adjusting mechanisms such as a screw rod, an adjusting plate and a triangular plate; the device is conveniently fixed to a column through the first fixing ring and the second fixing ring, so that the device is conveniently installed, friction between the first fixing ring and the column and friction between the second fixing ring and the column are increased through the rubber pads, the stability of the device is improved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of radar detection and calibration, and specifically relates to a radar detection and calibration device. Background Technique

[0002] Radar detection and calibration refers to the process of aligning the point cloud data returned by a radar with the actual scene by determining the internal and external parameters of the radar sensor. Correct detection and calibration can improve the accuracy and stability of the radar.

[0003] The Chinese invention patent with the publication number of CN112505645A discloses an angular radar calibration device for road test detection, which includes a reflection cone, a fixed bracket, a vertical angle adjustment device, a horizontal angle adjustment device, and a column; the reflection cone is installed on the fixed bracket, the fixed bracket is connected to the vertical angle adjustment device, the vertical angle adjustment device is fixed on the horizontal angle adjustment device, and the horizontal angle adjustment device is fixed on the column. The angular radar calibration device is installed on the side of the calibration runway through the column.

[0004] The above device can effectively avoid the influence caused by snow accumulation through an adjustable installation method, improve the robustness of the system, and ensure the success rate in extreme weather. However, the above device does not have a device for melting snow. When the reflection cone is covered with snow, it will affect the monitoring and calibration accuracy of the angular radar, reducing its success rate in extreme weather.

[0005] Therefore, the utility model provides a radar detection and calibration device. Content of the Utility Model

[0006] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a radar detection and calibration device to solve the problems proposed in the above background technology. The utility model can heat the corner reflector in snowy weather by installing electric heating wires inside the fixed column and the bottom plate, thereby melting the snow on the corner reflector, ensuring the accuracy of angular radar detection and calibration in snowy weather, and having high practicability.

[0007] To achieve the above purpose, the utility model is realized through the following technical solutions: a radar detection and calibration device, including a first fixing ring, a fixing frame is fixedly arranged on the outer wall of one side of the first fixing ring, a vertical plate is arranged on one side of the fixing frame through an adjusting mechanism, a chassis and a cross bar are respectively fixedly arranged on one side of the top end and the bottom end of the vertical plate, a corner reflector is fixedly arranged between the chassis and the cross bar, the corner reflector includes a fixed column, a bottom plate is fixedly arranged at the bottom of the fixed column, and electric heating wires are fixedly arranged inside both the bottom plate and the fixed column.

[0008] Further, the adjusting mechanism includes a screw rod and an adjusting plate. A fixing block is fixedly arranged at the middle position inside the fixed frame, and the screw rod is rotationally installed inside the fixing block in a limited manner.

[0009] Further, the screw rod is rotatably arranged inside the fixed frame, and a knob is fixedly arranged at the top end of the screw rod. The knob is arranged above the fixed frame.

[0010] Further, the adjusting plate is slidably installed inside the top end and the bottom end of the fixed frame in a limited manner, and the adjusting plate is screwed to the top end and the bottom end of the screw rod through screw holes.

[0011] Further, the fixing block is movably connected to the middle position of one side of the vertical plate through a pivot. Triangular plates are symmetrically and fixedly arranged on the side walls of the vertical plate above and below the pivot, and one end of the adjusting plate is in movable contact with one hypotenuse of the triangular plate.

[0012] Further, fixing plates are fixedly arranged between the four sides of the fixed column and the bottom plate. Adjacent fixing plates are perpendicular to each other, and the fixing plates and the bottom plate are perpendicular to each other.

[0013] Further, one end of the first fixing ring is movably installed with a second fixing ring through a hinge. The shapes of the first fixing ring and the second fixing ring are both semi-circular.

[0014] Further, rubber pads are fixedly arranged on the inner walls of the first fixing ring and the second fixing ring. Convex edges are fixedly arranged at the other ends of the first fixing ring and the second fixing ring. Mounting holes are formed inside the convex edges, and a column is installed inside the first fixing ring and the second fixing ring.

[0015] The beneficial effects of the present utility model: In a radar detection and calibration device of the present utility model, by installing electric heating wires inside the fixed column and the bottom plate, the corner reflector can be heated in snowy weather, thereby melting the snow on the corner reflector, ensuring the accuracy of radar detection and calibration in snowy weather, and having high practicability. The stability of the corner reflector can be improved through the cross bar and the chassis. The pitching angle of the corner reflector can be adjusted through adjusting mechanisms such as the screw rod, the adjusting plate, and the triangular plate; it is convenient to fix the device on the column through the first fixing ring and the second fixing ring, thereby facilitating the installation of the device. The friction between the first fixing ring, the second fixing ring and the column is increased through the rubber pads, thereby improving the stability of the device, and having high practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural diagram of a radar detection and calibration device of the present utility model;

[0017] Figure 2The front view sectional view of a radar detection and calibration device of the present utility model;

[0018] Figure 3 The structural diagram of the adjustment state of a radar detection and calibration device of the present utility model;

[0019] Figure 4 The structural diagram of the adjustment mechanism of a radar detection and calibration device of the present utility model;

[0020] In the figure: 1. The first fixing ring; 2. The second fixing ring; 3. The rubber pad; 4. The fixing frame; 5. The adjustment mechanism; 6. The vertical plate; 7. The cross bar; 8. The corner reflector; 9. The chassis; 10. The column; 11. The fixing block; 12. The screw; 13. The adjustment plate; 14. The triangular plate; 15. The fixing column; 16. The fixing plate; 17. The bottom plate; 18. The electric heating wire. Specific implementation manners

[0021] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0022] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: a radar detection and calibration device, including a first fixing ring 1, a fixing frame 4 is fixedly arranged on the outer wall of one side of the first fixing ring 1, a vertical plate 6 is arranged on one side of the fixing frame 4 through an adjustment mechanism 5, a chassis 9 and a cross bar 7 are respectively fixedly arranged at the top and one side of the bottom end of the vertical plate 6, a corner reflector 8 is fixedly arranged between the chassis 9 and the cross bar 7, the corner reflector 8 includes a fixing column 15, a bottom plate 17 is fixedly arranged at the bottom of the fixing column 15, and electric heating wires 18 are fixedly arranged inside both the bottom plate 17 and the fixing column 15. By arranging the electric heating wires 18 inside the bottom plate 17 and the fixing column 15, it is convenient to heat the corner reflector 8, thereby heating and melting the snow on the corner reflector 8, avoiding the influence of snow on the recognition of the corner radar, with high practicability and improving the accuracy of the corner radar.

[0023] In this embodiment, the adjusting mechanism 5 includes a screw rod 12 and an adjusting plate 13. A fixing block 11 is fixedly arranged at the middle position inside the fixing frame 4. The screw rod 12 is rotationally installed in the fixing block 11 in a limited manner. The screw rod 12 is rotatably arranged inside the fixing frame 4. The top end of the screw rod 12 is fixedly provided with a knob, and the knob is arranged above the fixing frame 4. The adjusting plate 13 is slidably installed in the top and bottom parts of the fixing frame 4 in a limited manner. The adjusting plate 13 is screwed to the top and bottom ends of the screw rod 12 through screw holes. The fixing block 11 is movably connected to the middle position of one side of the vertical plate 6 through a pivot. Triangular plates 14 are symmetrically and fixedly arranged on the side walls of the vertical plate 6 corresponding to the upper and lower sides of the pivot. One end of the adjusting plate 13 is in movable contact with one hypotenuse of the triangular plate 14. By driving the screw rod 12 to rotate through the knob, the screw rod 12 drives the adjusting plates 13 at the top and bottom to lift synchronously, facilitating the rotational adjustment of the vertical plate 6 through the action of the adjusting plate 13 and the triangular plate 14, thereby adjusting the angle of the corner reflector 8 and facilitating the use in different scenarios and different corner radars.

[0024] In this embodiment, fixing plates 16 are fixedly arranged between the four sides of the fixing column 15 and the bottom plate 17. Adjacent fixing plates 16 are perpendicular to each other, and the fixing plates 16 and the bottom plate 17 are perpendicular to each other. The fixing plates 16 are made of metal and can conduct heat, facilitating the acceleration of snow melting and improving the snow melting efficiency.

[0025] In this embodiment, one end of the first fixing ring 1 is movably installed with a second fixing ring 2 through a hinge. The first fixing ring 1 and the second fixing ring 2 are both semi-circular in shape. Rubber pads 3 are fixedly arranged on the inner walls of the first fixing ring 1 and the second fixing ring 2. The other ends of the first fixing ring 1 and the second fixing ring 2 are fixedly provided with convex edges, and mounting holes are formed inside the convex edges. A column 10 is installed inside the first fixing ring 1 and the second fixing ring 2. The rubber pads 3 can increase the friction between the first fixing ring 1, the second fixing ring 2 and the column 10. The convex edges and the mounting holes facilitate the fixation between the first fixing ring 1 and the second fixing ring 2, facilitating the installation of the device and thus improving the stability of the device.

[0026] When using this radar detection and calibration device, according to different angular radars, the first fixing ring 1 and the second fixing ring 2 are rotated and opened through hinges, and the first fixing ring 1 and the second fixing ring 2 are installed on the outside of the column 10. Rotate the first fixing ring 1 and the second fixing ring 2 in the reverse direction, bring the ends of the first fixing ring 1 and the second fixing ring 2 provided with convex edges closer, and install bolts inside the mounting holes to conveniently fix the first fixing ring 1 and the second fixing ring 2 at an appropriate height on the column 10. The rubber pads 3 provided can increase the friction between the first fixing ring 1, the second fixing ring 2 and the column 10, thereby improving the stability of the device. According to needs, rotate the knob, and the knob drives the adjusting plate 13 to slide up and down in a limited manner inside the fixed frame 4 through the screw rod 12. One end of the adjusting plate 13 squeezes the triangular plate 14, causing the vertical plate 6 to rotate on the fixed block 11 through the pivot. The vertical plate 6 drives the corner reflector 8 to tilt through the cross bar 7 and the chassis 9, thereby adjusting the angle of the corner reflector 8. By installing the electric heating wire 18 inside the fixed column 15 and the bottom plate 17, the corner reflector 8 can be heated in snowy weather, thereby melting the snow on the corner reflector 8 and ensuring the accuracy of the angular radar detection and calibration in snowy weather, with high practicality. The stability of the corner reflector 8 can be improved through the cross bar 7 and the chassis 9; the angular radar installed on the vehicle emits electromagnetic waves. When the electromagnetic waves scan three mutually perpendicular surfaces on the corner reflector 8, the electromagnetic waves will be refracted and amplified on the metal corner, thereby generating a very strong echo signal, and then aligning and calibrating it with the actual scene.

[0027] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A radar detection calibration device, comprising a first fixing ring (1), characterized in that: A fixing frame (4) is fixedly arranged on an outer wall of one side of the first fixing ring (1); a vertical plate (6) is arranged on one side of the fixing frame (4) through an adjusting mechanism (5); a chassis (9) and a cross bar (7) are fixedly arranged on one side of the top and bottom ends of the vertical plate (6), respectively; a corner reflector (8) is fixedly arranged between the chassis (9) and the cross bar (7); the corner reflector (8) comprises a fixing column (15); a bottom plate (17) is fixedly arranged at the bottom of the fixing column (15); and electric heating wires (18) are fixedly arranged inside the bottom plate (17) and the fixing column (15).

2. A radar detection calibration device according to claim 1, characterized in that: The adjustment mechanism (5) comprises a screw rod (12) and an adjustment plate (13); a fixing block (11) is fixedly arranged at a middle position inside the fixing frame (4); and the screw rod (12) is rotationally mounted inside the fixing block (11) in a limited manner.

3. A radar detection calibration device according to claim 2, characterized in that: The screw rod (12) is rotatably arranged inside the fixed frame (4), and a knob is fixedly arranged at the top end of the screw rod (12), and the knob is arranged above the fixed frame (4).

4. A radar detection calibration device according to claim 3, characterized in that: The adjusting plate (13) is installed in a limited sliding manner inside the top end and the bottom end of the fixing frame (4), and the adjusting plate (13) is screwed to the top end and the bottom end of the screw rod (12) through screw holes.

5. A radar detection calibration device according to claim 4, characterized in that: The fixed block (11) is movably connected to the middle position of one side of the vertical plate (6) via a pivot, and triangular plates (14) are symmetrically fixedly arranged on the side walls of the corresponding vertical plates (6) above and below the pivot, and one end of the adjustment plate (13) is in movably contact with a hypotenuse of the triangular plate (14).

6. A radar detection calibration device according to claim 1, characterized in that: Fixed plates (16) are fixedly arranged between the four sides of the fixed column (15) and the bottom plate (17), and adjacent fixed plates (16) are arranged perpendicular to each other, and the fixed plates (16) and the bottom plate (17) are arranged perpendicular to each other.

7. A radar detection and calibration device according to claim 1, characterized in that: A second fixing ring (2) is movably mounted on one end of the first fixing ring (1) via a hinge, and the first fixing ring (1) and the second fixing ring (2) are both semicircular in shape.

8. A radar detection calibration device according to claim 7, characterized in that: A rubber pad (3) is fixedly provided on the inner wall of the first fixing ring (1) and the second fixing ring (2); a convex edge is fixedly provided on the other end of the first fixing ring (1) and the second fixing ring (2); a mounting hole is provided inside the convex edge; and a column (10) is installed inside the first fixing ring (1) and the second fixing ring (2).

Images