An automobile ADAS calibration target

Abstract

The application provides an automobile ADAS calibration target, belongs to the technical field of target positioning, and comprises a chassis, sliding rails, two mobile target frames and telescopic members, the two ends of the sliding rails are fixedly connected with the side surfaces of the chassis; the first mobile target frame is slidably connected with the sliding rails, a first magnetic control locking mechanism is arranged between the first mobile target frame and the sliding rails, and the side surface of the first mobile target frame is fixedly connected with a first horizontal rod; the second mobile target frame is slidably connected with the sliding rails, a second magnetic control locking mechanism is arranged between the second mobile target frame and the sliding rails, and the side surface of the second mobile target frame is fixedly connected with a second horizontal rod; one end of the telescopic member is fixedly connected with the first horizontal rod, and the other end of the telescopic member is fixedly connected with the second horizontal rod. The application solves the problem that the existing ADAS calibration target can only calibrate one vehicle, cannot meet the demand of general vehicle maintenance factories for receiving multiple vehicles, and is high in cost and occupies a large space if multiple devices are installed.

Description

Technical Field

[0001] This invention relates to the field of calibration target positioning technology, specifically to a calibration target for automotive ADAS. Background Technology

[0002] Advanced Driver Assistance System (ADAS) uses various sensors installed in the vehicle to collect environmental data inside and outside the vehicle in real time. It performs technical processing such as identification, detection and tracking of moving and static objects, so that the driver can detect potential dangers in the shortest possible time, thereby raising awareness and improving safety and active safety technology.

[0003] ADAS systems include multiple devices such as front-facing cameras, radar, and 360-degree panoramic cameras. When equipping a car with an ADAS system, the sensors need to be calibrated to ensure the safety and reliability of the vehicle's autonomous driving.

[0004] ADAS calibration targets are tools used in the ADAS calibration process. Currently used ADAS calibration targets are all mounted on a frame that can be adjusted in three dimensions, such as patent number: 202021848034.3, patent name: a device for positioning ADAS calibration targets. It describes a screw structure composed of a first transmission mechanism, a second transmission mechanism, a third transmission mechanism, and a third motor, which can drive the camera calibration target and radar calibration target to adjust their positions in all directions. This device can only perform ADAS calibration on one vehicle, which cannot meet the needs of general vehicle repair shops that can handle multiple vehicles. Installing multiple devices would be costly and space-consuming. Therefore, this invention provides an automotive ADAS calibration target. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides an automotive ADAS calibration target, which solves the problem that existing ADAS calibration targets can only perform ADAS calibration on one vehicle, failing to meet the needs of general vehicle repair shops that can handle multiple vehicles. Furthermore, installing multiple devices would result in high costs and significant space requirements.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: an automotive ADAS calibration target, comprising a chassis and slide rails, wherein two slide rails are provided, and the two ends of the slide rails are fixedly connected to the sides of the chassis;

[0009] Two movable target frames are provided. The first movable target frame is slidably connected to a slide rail, and a first magnetic locking mechanism is provided between the first movable target frame and the slide rail. A first crossbar is fixedly connected to the side of the first movable target frame. The second movable target frame is slidably connected to the slide rail, and a second magnetic locking mechanism is provided between the second movable target frame and the slide rail. A second crossbar is fixedly connected to the side of the second movable target frame.

[0010] The telescopic component has one end fixedly connected to the first crossbar and the other end fixedly connected to the second crossbar.

[0011] Preferably, the movable target frame includes:

[0012] Two lifting frames, wherein the bottom end of the first lifting frame is slidably connected to one of the slide rails, and the second lifting frame is slidably connected to the other slide rail;

[0013] The beam frame, with its two ends fixedly connected to the top ends of the first lifting frame and the second lifting frame, respectively;

[0014] The first adjustable guide wheel and the second adjustable guide wheel are both threadedly connected to the beam frame. The first adjustable guide wheel faces downward and is close to the first lifting frame, and the second adjustable guide wheel faces downward and is close to the second lifting frame.

[0015] The first fixed guide wheel and the second fixed guide wheel are both fixedly connected to the beam frame. The first fixed guide wheel faces upward and is close to the first lifting frame, and the second fixed guide wheel faces downward and is close to the second lifting frame.

[0016] The annular steel wire rope has four support points consisting of the first adjustable guide wheel, the second adjustable guide wheel, the first fixed guide wheel, and the second fixed guide wheel. The annular steel wire rope is located outside the four support points. A ball joint is provided on the side of the annular steel wire rope between the first fixed guide wheel and the second fixed guide wheel.

[0017] The first motor is fixedly connected to the beam frame. A rotating wheel is fixedly connected to the output end of the first motor. Two notches corresponding to the ball joints are opened on the side of the rotating wheel.

[0018] A calibration target is fixedly connected to a ring-shaped steel wire rope and is located between a first adjustable guide wheel and a second adjustable guide wheel.

[0019] Preferably, the lifting frame includes:

[0020] The support leg frame has a sliding member at its bottom, which is slidably connected to a slide rail, and a cavity at its top.

[0021] The second motor is fixedly connected to the outer side of the outrigger frame, and the output end of the second motor extends through the side wall of the outrigger frame into the cavity and is fixedly connected to the drive gear.

[0022] A lead screw is located inside a cavity, and its bottom end is rotatably connected to a support leg. A driven gear is fixedly connected to the side of the lead screw, and the driving gear meshes with the driven gear for transmission.

[0023] A sliding block is located inside the cavity and slides up and down. The lead screw passes through the sliding block and forms a threaded pair. A bracket is fixedly connected to the top of the sliding block.

[0024] Preferably, the bottom of the slide rail has a slot, the side of the sliding member has an opening, a locking block is slidably connected inside the opening, the locking block is a magnetic block, and a magnetic drive plate is fixedly connected to the outer side of the sliding member, the magnetic drive plate covers the outer port of the opening, the magnetic drive plate is an electromagnetic block.

[0025] Preferred options also include:

[0026] A partition plate is fixedly connected to the base frame and is located between the first movable target frame and the second movable target frame.

[0027] A stabilizing frame, one end of which is fixedly connected to the base frame, and the other end of which is fixedly connected to the side of the partition plate, so that the stabilizing frame, the base frame, and the partition plate form a triangle.

[0028] Preferably, a connecting block is fixedly connected to the side of the base frame, a connecting frame is fixedly connected to the end of the slide rail, the connecting frame and the connecting block are fixedly connected by bolts, and the top of the connecting frame is provided with an inwardly bent portion that bends toward the slide rail.

[0029] Preferably, it further includes: an auxiliary target, wherein a magnetic block is provided on the back of the auxiliary target;

[0030] The separator is a magnetic plate.

[0031] Preferably, the top of both the first and second adjustable guide wheels is provided with a U-shaped opening, and the annular steel wire rope passes through the inside of the U-shaped opening.

[0032] (III) Beneficial Effects

[0033] This invention provides a calibration target for automotive ADAS (Advanced Driver Assistance Systems). It has the following beneficial effects:

[0034] 1. This application proposes a sliding rail with two movable target frames slidably connected on it. The two movable target frames are driven to slide by a telescopic component. According to actual usage requirements, one of the movable target frames is fixed in a fixed state by a magnetic locking mechanism set on the sliding rail. When the telescopic component moves, it can push or pull the other movable target frame to slide. In actual use, this device is placed in the middle, and both ends can be used for automotive ADAS calibration. Using this device can save the space occupied by the equipment, achieve two uses in one machine, save costs, and is suitable for use in medium and large-sized automotive repair shops.

[0035] 2. In this application, the structure of the mobile target frame is further improved by adopting two lifting frames and a ring-shaped steel wire rope that can rotate in a ring to form a planar moving structure. That is, the lifting frames can control the ring-shaped steel wire rope and the calibration target to move up and down, drive the ring-shaped steel wire rope to rotate, and drive the calibration target to move horizontally, thereby realizing free adjustment of the plane. With the help of the slide rail, the three-dimensional position can be adjusted to facilitate ADAS calibration.

[0036] 3. In this application, the magnetic locking mechanism is further improved by using a magnetic drive plate to drive the card block to move up and down, so that it is locked between the card slot and the through-hole, which can prevent the moving target frame from sliding relative to the slide rail, thereby fixing a moving target frame. Attached Figure Description

[0037] Figure 1 This is a perspective view of an automotive ADAS calibration target proposed in this invention;

[0038] Figure 2 This is a front view of an automotive ADAS calibration target proposed in this invention;

[0039] Figure 3 This is a top view of an automotive ADAS calibration target proposed in this invention;

[0040] Figure 4 This is a side view of a movable target frame for automotive ADAS calibration proposed in this invention;

[0041] Figure 5 This is a perspective view of a movable target frame for automotive ADAS calibration proposed in this invention;

[0042] Figure 6 This is a disassembly diagram of a lifting bracket for an automotive ADAS calibration target proposed in this invention;

[0043] Figure 7 This is a schematic diagram of the connection between the lifting bracket and the slide rail of an automotive ADAS calibration target proposed in this invention.

[0044] The components are as follows: 1. Base frame; 2. Connecting block; 3. Slide rail; 4. Connecting frame; 5. Inner fold; 6. Slot; 7. Support leg frame; 8. Through-hole; 9. Locking block; 10. Magnetic drive plate; 11. Divider plate; 12. Stabilizing frame; 13. First moving target frame; 14. Second moving target frame; 15. First crossbar; 16. Second crossbar; 17. Telescopic component; 18. First lifting frame; 19. Second lifting frame; 20. Beam frame; 21. First adjustable guide wheel; 22. Second adjustable guide wheel; 23. First fixed guide wheel; 24. Second fixed guide wheel; 25. Ring steel wire rope; 26. Calibration target; 27. Ball joint; 28. Rotating wheel; 29. ​​First motor; 30. Second motor; 31. Driving gear; 32. Lead screw; 33. Driven gear; 34. Sliding block; 35. Support. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Example 1:

[0047] like Figures 1-7 As shown, an embodiment of the present invention provides an automotive ADAS calibration target, including a base frame 1, a slide rail 3, two movable target frames, and a telescopic component 17.

[0048] There are two slide rails 3, and both ends of the slide rails 3 are fixedly connected to the side of the base frame 1.

[0049] The two movable target frames are a first movable target frame 13 and a second movable target frame 14. The first movable target frame 13 is slidably connected to the slide rail 3, and a first magnetic locking mechanism is provided between the first movable target frame 13 and the slide rail 3. A first crossbar 15 is fixedly connected to the side of the first movable target frame 13. The second movable target frame 14 is slidably connected to the slide rail 3, and a second magnetic locking mechanism is provided between the second movable target frame 14 and the slide rail 3. A second crossbar 16 is fixedly connected to the side of the second movable target frame 14.

[0050] One end of the telescopic member 17 is fixedly connected to the first crossbar 15, and the other end of the telescopic member 17 is fixedly connected to the second crossbar 16. Preferably, both ends of the telescopic member 17 are provided with sliding sleeves, and the two sliding sleeves are respectively fitted onto the first crossbar 15 and the second crossbar 16, and then the two sliding sleeves are fixed onto the first crossbar 15 and the second crossbar 16 by screws.

[0051] In use, the first magnetic locking mechanism on the first movable target frame 13 is activated to fix the first movable target frame 13 to the slide rail 3. At this time, the telescopic component 17 is activated, with one end fixed and the other end extending or retracting, which drives the second movable target frame 14 to slide and adjust its position. Conversely, the second magnetic locking mechanism on the second movable target frame 14 is activated to drive the first movable target frame 13 to slide and adjust its position.

[0052] In another embodiment, refer to the appendix Figures 4-5 The mobile target frame includes: two lifting frames, a beam frame 20, a first adjustable guide wheel 21, a second adjustable guide wheel 22, a first fixed guide wheel 23, a second fixed guide wheel 24, a ring steel wire rope 25, a first motor 29, and a calibration target 26.

[0053] The two lifting frames are a first lifting frame 18 and a second lifting frame 19. The bottom end of the first lifting frame 18 is slidably connected to one of the slide rails 3, and the second lifting frame 19 is slidably connected to the other slide rail 3. The two ends of the beam frame 20 are fixedly connected to the top ends of the first lifting frame 18 and the second lifting frame 19, respectively.

[0054] The first lifting frame 18, the second lifting frame 19, and the beam frame 20 form a portal frame structure, and the calibration target 26 is located in the inner adjustment position of the portal frame.

[0055] The first adjustable guide wheel 21 and the second adjustable guide wheel 22 are both threadedly connected to the beam frame 20. The first adjustable guide wheel 21 faces downward and is close to the first lifting frame 18, and the second adjustable guide wheel 22 faces downward and is close to the second lifting frame 19. The first fixed guide wheel 23 and the second fixed guide wheel 24 are both fixedly connected to the beam frame 20. The first fixed guide wheel 23 faces upward and is close to the first lifting frame 18, and the second fixed guide wheel 24 faces downward and is close to the second lifting frame 19.

[0056] The first adjustable guide wheel 21, the second adjustable guide wheel 22, the first fixed guide wheel 23, and the second fixed guide wheel 24 form four support points. The annular steel wire rope 25 is located outside the four support points. A ball joint 27 is provided on the side of the annular steel wire rope 25 between the first fixed guide wheel 23 and the second fixed guide wheel 24.

[0057] like Figure 4 As shown, the four support points are located at the four corners of an isosceles trapezoid, so that the loop steel wire rope 25 forms an isosceles trapezoid with an upper horizontal part, a lower horizontal part, and two oblique parts on the left and right.

[0058] The first motor 29 is fixedly connected to the beam frame 20. A rotating wheel 28 is fixedly connected to the output end of the first motor 29. Two notches corresponding to the ball joint 27 are opened on the side of the rotating wheel 28. When the first motor 29 is activated, it drives the rotating wheel 28 to rotate. The two notches on its side correspond to the ball joint 27. When the first motor 29 rotates, it causes the ball joint 27 to move horizontally two positions, driving the annular steel wire rope 25 to rotate in a fixed quantity, thereby driving the calibration target 26 to move horizontally.

[0059] The calibration target 26 is fixedly connected to the annular steel wire rope 25, and the calibration target 26 is located between the first adjustable guide wheel 21 and the second adjustable guide wheel 22.

[0060] The ball joint 27 is located at the horizontal part above the annular wire rope 25, and the calibration target 26 is located at the horizontal part below the annular wire rope 25.

[0061] In another embodiment, refer to the appendix Figure 6 The lifting frame includes: support leg frame 7, second motor 30, lead screw 32, and sliding block 34.

[0062] The bottom of the outrigger 7 is equipped with a sliding member, which is slidably connected to the slide rail 3. The top of the outrigger 7 is equipped with a cavity, the top of which is open. The outrigger 7 and the slide rail 3 can slide horizontally.

[0063] The second motor 30 is fixedly connected to the outer side of the outrigger 7. The output end of the second motor 30 extends through the side wall of the outrigger 7 and into the cavity, where a drive gear 31 is fixedly connected. The lead screw 32 is located in the cavity, and its bottom end is rotatably connected to the outrigger 7. A driven gear 33 is fixedly connected to the side of the lead screw 32, and the drive gear 31 and the driven gear 33 mesh and transmit power. The sliding block 34 slides up and down inside the cavity. The lead screw 32 passes through the sliding block 34, and a threaded pair is formed between them. A bracket 35 is fixedly connected to the top of the sliding block 34.

[0064] When in use, the shaft of the second motor 30 is rotated, which directly drives the drive gear 31 to rotate. The drive gear 31 meshes with the driven gear 33, which drives the driven gear 33 and the lead screw 32 to rotate. The lead screw 32 passes through the sliding block 34 and forms a threaded pair between them, driving the sliding block 34 and the bracket 35 to slide vertically.

[0065] Reference Appendix Figure 6 The shaft of the second motor 30 is perpendicular to the lead screw 32, and the driving gear 31 and the driven gear 33 are driven by bevel gears.

[0066] In another embodiment, refer to the appendix Figure 7The first magnetic locking mechanism is the same as the second magnetic locking mechanism, including a slot 6, a through-hole 8, a locking block 9, and a magnetic drive plate 10. The bottom of the slide rail 3 has a slot 6, and the side of the sliding member has a through-hole 8. The locking block 9 is slidably connected inside the through-hole 8. The locking block 9 is a magnetic block. The outer side of the sliding member is fixedly connected to the magnetic drive plate 10, which covers the outer port of the through-hole 8. The magnetic drive plate 10 is an electromagnetic block.

[0067] When in use, the magnetic drive board 10 is powered on, driving the card block 9 to slide upwards, so that its top end is fixed in the card slot 6. At this time, part of the card block 9 is in the card slot 6 and part is in the through port 8, which can hinder the sliding of the moving target frame. When the magnetic drive board 10 is powered by a reverse current, the magnetic field direction of the magnetic drive board 10 changes, attracting the card block 9 to slide downwards, so that it completely enters the through port 8. At this time, the moving target frame can slide normally.

[0068] In another embodiment, refer to the appendix Figure 1 It also includes: a partition plate 11 and a stabilizer 12. The partition plate 11 is fixedly connected to the base frame 1, and the partition plate 11 is located between the first movable target frame 13 and the second movable target frame 14.

[0069] One end of the stabilizer 12 is fixedly connected to the base frame 1, and the other end of the stabilizer 12 is fixedly connected to the side of the partition plate 11, so that the stabilizer 12, the base frame 1, and the partition plate 11 form a triangle.

[0070] The partition 11 is used to separate the working areas of the first movable target frame 13 and the second movable target frame 14, and the stabilizing frame 12 is used to reinforce the connection of the partition 11.

[0071] In another embodiment, refer to the appendix Figure 1 , Figure 7 A connecting block 2 is fixedly connected to the side of the base frame 1, and a connecting frame 4 is fixedly connected to the end of the slide rail 3. The connecting frame 4 and the connecting block 2 are fixedly connected by bolts. The top of the connecting frame 4 is provided with an inwardly bent part 5 that bends toward the slide rail 3.

[0072] The screw connection facilitates installation. The inner fold 5 is designed for end cushioning. When the support leg 7 moves to the end, it will squeeze or impact the inner fold 5. During this process, the inner fold 5 acts as a cushion to avoid damage to the equipment caused by the impact.

[0073] In another embodiment, it further includes: an auxiliary target with a magnetic block on its back; and a magnetic plate 11. Dedicated auxiliary targets such as those for cameras, radar, lasers, and ultrasound can be provided as needed, and these targets can be magnetically attached to the partition plate 11 to facilitate temporary expansion of functionality.

[0074] Both the first adjustable guide wheel 21 and the second adjustable guide wheel 22 have U-shaped openings at their tops, and the annular steel wire rope 25 passes through the inside of the U-shaped openings. The U-shaped openings are designed to allow room for the annular steel wire rope 25 and also to prevent the annular steel wire rope 25 from deflecting to the left or right.

[0075] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A calibration target for automotive ADAS, comprising a chassis (1), characterized in that, Also includes: Two slide rails (3), both ends of which are fixedly connected to the side of the base frame (1); The first movable target frame (13) and the second movable target frame (14) are both slidably connected to the slide rail (3). A first magnetic locking mechanism is provided between the first movable target frame (13) and the slide rail (3), and a second magnetic locking mechanism is provided between the second movable target frame (14) and the slide rail (3). The first movable target frame (13) and the second movable target frame (14) are respectively fixed with a first crossbar (15) and a second crossbar (16). Telescopic component (17), the two ends of which are fixedly connected to the first crossbar (15) and the second crossbar (16) respectively; when the first magnetic locking mechanism locks the first moving target frame (13), the telescopic component (17) drives the second moving target frame (14) to move along the slide rail (3); when the second magnetic locking mechanism locks the second moving target frame (14), the telescopic component (17) drives the first moving target frame (13) to move along the slide rail (3); Each movable target frame includes two lifting frames, a beam frame (20) connected to the top of the two lifting frames, a first adjustable guide wheel (21), a second adjustable guide wheel (22), a first fixed guide wheel (23), a second fixed guide wheel (24) set on the beam frame (20), an annular steel wire rope (25) wound around the outside of the four guide wheels, a first motor (29), and a calibration target (26) fixedly connected to the annular steel wire rope (25). The annular steel wire rope (25) is provided with a ball joint (27). The output end of the first motor (29) is connected to a rotating wheel (28). The side of the rotating wheel (28) is provided with a notch that cooperates with the ball joint (27) so that the ball joint (27) can be moved to drive the calibration target (26) to move in the horizontal direction.

2. The automotive ADAS calibration target according to claim 1, characterized in that, The four support points formed by the first adjustable guide wheel (21), the second adjustable guide wheel (22), the first fixed guide wheel (23), and the second fixed guide wheel (24) are located at the four corners of the isosceles trapezoid, so that the annular wire rope (25) forms an upper horizontal part, a lower horizontal part, and two inclined parts; the ball joint (27) is located in the upper horizontal part and between the first fixed guide wheel (23) and the second fixed guide wheel (24), the calibration target (26) is located in the lower horizontal part and between the first adjustable guide wheel (21) and the second adjustable guide wheel (22), and the rotating wheel (28) has two notches on its side corresponding to the ball joint (27).

3. The automotive ADAS calibration target according to claim 2, characterized in that, The lifting frame includes: The support leg (7) has a sliding member at its bottom, which is slidably connected to the slide rail (3), and a cavity at its top. The second motor (30) is fixedly connected to the outer side of the support leg (7). The output end of the second motor (30) extends through the side wall of the support leg (7) and is fixedly connected to the inside of the cavity with a drive gear (31). The lead screw (32) is located in the cavity, and the bottom end of the lead screw (32) is rotatably connected to the support leg (7). A driven gear (33) is fixedly connected to the side of the lead screw (32), and the driving gear (31) meshes with the driven gear (33) for transmission. The sliding block (34) slides up and down inside the cavity. The lead screw (32) passes through the sliding block (34) and forms a threaded pair with the sliding block (34). The top of the sliding block (34) is fixedly connected to a bracket (35).

4. The automotive ADAS calibration target according to claim 3, characterized in that: The bottom of the slide rail (3) is provided with a slot (6), and the side of the sliding member is provided with a through-hole (8). A locking block (9) is slidably connected inside the through-hole (8). The locking block (9) is a magnetic block. A magnetic drive plate (10) is fixedly connected to the outer side of the sliding member. The magnetic drive plate (10) covers the outer port of the through-hole (8). The magnetic drive plate (10) is an electromagnetic block. When the magnetic drive plate (10) is energized, it drives the locking block (9) into the slot (6), so that part of the locking block (9) is located in the slot (6) and the other part is located in the through-hole (8) to lock the corresponding moving target frame. When the magnetic drive plate (10) is supplied with reverse current, it attracts the locking block (9) back into the through-hole (8) to release the lock on the corresponding moving target frame.

5. The automotive ADAS calibration target according to claim 4, characterized in that, Also includes: A partition plate (11) is fixedly connected to the base frame (1), and the partition plate (11) is located between the first movable target frame (13) and the second movable target frame (14); The stabilizer (12) is fixedly connected at one end to the base frame (1) and at the other end to the side of the partition plate (11), so that the stabilizer (12), the base frame (1) and the partition plate (11) form a triangle.

6. The automotive ADAS calibration target according to claim 1, characterized in that: The base frame (1) is fixedly connected to the side of the connecting block (2), and the end of the slide rail (3) is fixedly connected to the connecting frame (4). The connecting frame (4) and the connecting block (2) are fixedly connected by bolts. The top of the connecting frame (4) is provided with an inwardly bent part (5) that bends toward the slide rail (3).

7. The automotive ADAS calibration target according to claim 5, characterized in that, Also includes: An auxiliary target, wherein a magnetic block is provided on the back side of the auxiliary target; The partition plate (11) is a magnetic plate.

8. The automotive ADAS calibration target according to claim 5, characterized in that: The top of the first adjustable guide wheel (21) and the second adjustable guide wheel (22) are both provided with U-shaped openings, and the annular steel wire rope (25) passes through the inside of the U-shaped openings.

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