An automobile radar and camera calibration device
By designing limiting and sliding components, the operation process of automotive radar and camera calibration devices is simplified, calibration efficiency and flexibility are improved, and the problem of cumbersome operation in existing technologies is solved.
Patent Information
- Application Number
- CN202511759700.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2045-11-27
AI Technical Summary
The existing vehicle radar and camera calibration devices have cumbersome procedures for installing and removing lane keeping calibration plates, which affects calibration efficiency, especially when the calibration plates are frequently replaced, the efficiency is significantly reduced.
The system employs a limiting component and a sliding component. The limiting component can simultaneously limit the calibration slider and the lane keeping calibration plate, while the sliding component allows the two calibration sliders to slide synchronously, simplifying the operation process and improving adjustment efficiency.
By simplifying the operation process and reducing adjustment steps, calibration efficiency and flexibility are improved, ensuring the accuracy of the relative position of the calibration slider and supporting quick removal and replacement of the lane keeping calibration plate.
Smart Images
Figure CN121208770B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of automotive calibration technology, and in particular to an automotive radar and camera calibration device. Background Technology
[0002] ADAS vehicle calibration mounts are based on sensor calibration technology. Through mathematical modeling and experimental methods, they determine the internal and external parameters of sensors, achieving precise alignment between the sensors and the vehicle coordinate system. This ensures the effective fusion of multi-sensor data in space and time. Static calibration is one of the calibration methods for ADAS calibration mounts. It uses known geometric features such as calibration boards, checkerboards, and reflectors in a fixed and controlled environment to solve for parameters, assisting in the calibration of sensors such as cameras, radar, and lidar. It is suitable for 4S stores and repair shops.
[0003] For example, Chinese patent CN118424744B discloses a vehicle ADAS calibration system, including a base assembly, a column assembly, and a crossbeam assembly. In order to facilitate the installation and removal of the lane keeping calibration plate, the lane keeping calibration plate is set on one side of the crossbeam through an installation mechanism. In order to ensure the stability of the lane keeping calibration plate, positioning mechanisms are symmetrically arranged on both sides of the lane keeping calibration plate.
[0004] In view of the above-mentioned prior art, in order to facilitate the stable installation and removal of the lane keeping calibration plate, an installation mechanism and a positioning mechanism are set on the calibration beam. When using the positioning mechanism, it is necessary to adjust and lock the clamping blocks on both sides of the lane keeping calibration plate in sequence. In actual operation, adjusting and locking the clamping blocks on both sides in sequence is cumbersome and increases the number of steps and time. Especially when it is necessary to frequently change the lane keeping calibration plate for different calibration scenario tests, it will significantly reduce the efficiency of the overall calibration work. Therefore, the present invention provides a vehicle radar and camera calibration device to meet the needs. Summary of the Invention
[0005] The technical problem to be solved by this invention is to provide a vehicle radar and camera calibration device. By setting a limiting component and a sliding component, the limiting component can simultaneously limit the calibration slider and the lane keeping calibration plate, eliminating the need for excessive installation and limiting mechanisms, simplifying the operation process, improving calibration efficiency, and assisting in the quick removal of the lane keeping calibration plate. The sliding component effectively reduces the time and operation steps required to adjust the calibration slider, improving adjustment efficiency. Through the above settings, the problem of cumbersome operation process and long operation time in fixing and removing the lane keeping calibration plate, which affects the calibration efficiency, can be solved.
[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:
[0007] A vehicle radar and camera calibration device includes a movable base, a support frame on top of the movable base, a calibration beam on one side of the support frame, a bracket inserted into one side of the calibration beam, calibration sliders slidably mounted at both ends of the calibration beam, and a lane keeping calibration plate on one side of each calibration slider; a limiting component for simultaneously limiting the calibration sliders and the lane keeping calibration plate, the limiting component being connected to the calibration beam and the calibration sliders respectively; and a sliding component for synchronously sliding the two calibration sliders on the calibration beam, the sliding component being connected to both the calibration beam and the calibration sliders respectively.
[0008] Optionally, the limiting component includes a calibration slider that slides on the calibration beam. The top of the calibration slider has an insertion port, and the bracket is inserted into the insertion port. A limiting plate is hinged to one side of the calibration slider, and the limiting plate is magnetically engaged with the lane keeping calibration plate.
[0009] Optionally, the limiting plate includes a deformable part, one end of which abuts against the calibration slider, and the other end of which is connected to a connecting part. The connecting part has a hinge part on the side near the calibration slider, and the hinge part is rotatably connected to the calibration slider. The connecting part has a limiting part on the side away from the deformable part. A notch is formed between the connecting part and the limiting part. A magnetic groove is formed on the side of the connecting part near the notch. The magnetic groove magnetically engages with the lane keeping calibration plate, and the notch engages with the lane keeping calibration plate.
[0010] Optionally, a connecting plate is provided on one side of the lane keeping calibration plate, and a snap-fit post and a magnetic block are provided on one side of the connecting plate. The magnetic block is magnetically attracted to the magnetic groove, and the snap-fit post is snap-fitted to the notch.
[0011] Optionally, a hinge rod is hinged to the side of the limiting plate near the deformed part, and a sliding block is hinged to the end of the hinge rod away from the limiting plate. The sliding block is slidably connected to the calibration slider.
[0012] Optionally, both ends of the calibration beam are provided with connecting rods, a sliding rod is slidably provided inside the connecting rod, a sliding frame is fixed at the end of the sliding rod away from the connecting rod, a sliding groove is provided on one side of the sliding frame, and the sliding block is slidably connected to the sliding groove.
[0013] Optionally, the sliding block includes a sliding part that slides within the slide groove. A connecting part is provided on the side of the sliding part away from the slide groove. The connecting part is hinged to the hinge rod. An abutting part is provided on the side of the connecting part away from the sliding part. The abutting part is slidably connected to the calibration slider.
[0014] Optionally, the calibration slider has a guide opening and a through opening on both sides, the abutting part passes through the guide opening and abuts against one side of the calibration beam, and the limiting part passes through the through opening and abuts against the other side of the calibration beam.
[0015] Optionally, the middle section of the calibration beam is rotatably provided with a connecting shaft, one end of the connecting shaft is connected to a sliding assembly, a rotating cylinder is slidably provided on the surface of the connecting shaft, the end of the rotating cylinder away from the calibration beam is rotatably connected to the sliding frame, a support frame is provided on the side of the sliding frame away from the calibration beam, an adjustment knob is provided on one side of the support frame, and the adjustment knob is connected to the rotating cylinder.
[0016] Optionally, the inner wall of the rotating drum is provided with multiple equidistant limiting grooves, and the surface of the connecting shaft is provided with a limiting button, which engages with one of the limiting grooves.
[0017] Compared with the prior art, the present invention has at least the following beneficial effects:
[0018] In the above solution, by setting a limiting component that moves synchronously with the calibration slider, both the calibration slider and the lane keeping calibration plate can be limited simultaneously. This eliminates the need for excessive installation and limiting mechanisms, simplifying the operation process and improving calibration efficiency. Furthermore, when the lane keeping calibration plate needs to be replaced, the limiting component can assist in the quick disassembly of the lane keeping calibration plate without affecting the stability of the calibration slider. The lane keeping calibration plate can be flexibly replaced according to different needs, further improving the flexibility and efficiency of the calibration work.
[0019] By setting up a sliding component, the two calibration sliders can slide synchronously on the calibration beam, which effectively reduces the time and operation steps required to adjust the calibration sliders, improves adjustment efficiency, and helps to improve calibration efficiency. At the same time, it can ensure the accuracy of the relative position of the two calibration sliders, which helps to improve the accuracy of calibration.
[0020] By setting up a limit plate, sliding block, rotating cylinder, and connecting shaft, it is possible to simultaneously limit the calibration slider and lane keeping calibration plate, eliminating the need for excessive installation and limiting mechanisms. This simplifies the operation process and improves calibration efficiency. When the lane keeping calibration plate needs to be replaced, the rotation and the coordination between the connecting shaft, the limit plate, and the sliding block can assist in the quick disassembly of the lane keeping calibration plate without affecting the stability of the calibration slider. The lane keeping calibration plate can be flexibly replaced according to different needs, further improving the flexibility and efficiency of the calibration work. Attached Figure Description
[0021] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.
[0022] Figure 1 Schematic diagram of the three-dimensional structure of a car radar and camera calibration device Figure 1 ;
[0023] Figure 2 Schematic diagram of the three-dimensional structure of a car radar and camera calibration device Figure 2 ;
[0024] Figure 3 A schematic diagram of the three-dimensional structure for calibrating the crossbeam, calibration slider, and camera calibration plate;
[0025] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;
[0026] Figure 5 A side-section three-dimensional structural diagram of the calibration slider, sliding block, and limiting plate in conjunction with the calibration crossbeam;
[0027] Figure 6 A side view of the calibration slider, sliding block, and limiting plate in conjunction with the calibration beam;
[0028] Figure 7 A three-dimensional structural diagram of the sliding frame and sliding block in conjunction;
[0029] Figure 8 A three-dimensional structural diagram showing the interaction between the rotating drum, connecting shaft, calibration beam, and sliding frame;
[0030] Figure 9 This is a side sectional view of the rotating drum and connecting shaft assembly.
[0031] Figure 10 A three-dimensional structural diagram showing the cooperation between the sliding frame, sliding rod, calibration frame, and connecting rod;
[0032] Figure 11 A schematic diagram of the three-dimensional structure for calibrating the slider and lane keeping calibration plate;
[0033] Figure 12 A three-dimensional structural diagram showing the coordination between the lane keeping calibration plate, connecting plate, snap-fit post, and limit plate.
[0034] Figure label:
[0035] 1. Movable base; 2. Stand; 3. Calibration beam; 4. Radar reflector; 5. Scale; 6. Laser emitter; 7. Bracket; 8. Camera calibration plate; 9. Calibration slider; 10. Limiting plate; 11. Magnetic groove; 12. Deformation part; 13. Connecting part; 14. Hinge part; 15. Notch; 16. Limiting part; 17. Hinge rod; 18. Sliding block; 19. Sliding part; 20. Connecting part; 21. Abutting part; 22. Guide port; 23. Through port; 24. Insertion port; 25. Sliding frame; 26. Slide groove; 27. Support frame; 28. Adjusting knob; 29. Rotary cylinder; 30. Connecting shaft; 31. Limiting groove; 32. Limiting knob; 33. Connecting rod; 34. Slide rod; 35. Lane keeping calibration plate; 36. Snap-fit post; 37. Magnetic block; 38. Connecting plate.
[0036] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation
[0037] The present invention provides a vehicle radar and camera calibration device in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.
[0038] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.
[0039] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.
[0040] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.
[0041] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.
[0042] like Figures 1 to 12As shown, an embodiment of the present invention provides a vehicle radar and camera calibration device, including a movable base 1, a support frame 2 on the top of the movable base 1, a calibration beam 3 on one side of the support frame 2, a scale 5 and a laser emitter 6 at both ends of the calibration beam 3, a radar reflector 4 in the middle of the calibration beam 3, a bracket 7 inserted into one side of the calibration beam 3, a camera calibration plate 8 on one side of the bracket 7, the bracket 7 supporting the camera calibration plate 8, calibration sliders 9 slidably mounted at both ends of the calibration beam 3, a lane keeping calibration plate 35 on one side of the calibration slider 9; a limiting component, used to simultaneously limit the calibration slider 9 and the lane keeping calibration plate 35, the limiting component being connected to the calibration beam 3 and the calibration slider 9 respectively; and a sliding component, used for... To enable the two calibration sliders 9 to slide synchronously on the calibration beam 3, a sliding assembly is connected to both the calibration beam 3 and the calibration sliders 9. The sliding assembly includes racks that slide relative to each other on one side of the calibration beam 3. Two racks are fixed to the two calibration sliders 9 respectively. A gear rotates on one side of the calibration beam 3, meshing with both racks simultaneously. Rotating the gear drives the two racks to move closer or further apart, thus enabling the two calibration sliders 9 to slide simultaneously on the calibration beam 3. Gear and rack transmission is existing technology and will not be elaborated upon here. It is understood that the bottom of the movable base 1 is equipped with self-locking casters for easy movement of the entire calibration equipment. The movable base 1 also has feet for adjusting its horizontal position. The upright frame 2 provides support and adjusts the height of the calibration beam 3. The height adjustment of the calibration beam 3 can be any of the existing height adjustment methods. Preferably, the upright 2 is provided with a lead screw and a guide rod. A threaded block is threaded on the lead screw, and the threaded block is slidably connected to the guide rod. A handwheel is fixed to one end of the lead screw, and the threaded block is fixed to the calibration beam 3 through the mounting bracket. The height of the calibration beam 3 can be adjusted by hand-cranking the handwheel. This part is disclosed as prior art and will not be elaborated further here. A spirit level is provided in the middle of the calibration beam 3 as a reference to keep the calibration beam 3 level. An angle adjustment mechanism for adjusting the angle of the radar reflector 4 is provided on one side of the mounting bracket. The angle adjustment mechanism can be any of the existing technologies. As disclosed as prior art, it will not be specifically limited or elaborated further here. The angle adjustment mechanism can be used to adjust the height of the radar reflector 4. The angle of the radar reflector 4 is adjusted to calibrate the vehicle radar. Following the prompts of the calibration software, and using the scale of the ruler 5 as a reference, the position of the laser emitter 6 is adjusted to correspond with the laser receiver located on the vehicle body or wheel, ensuring that the middle of the calibration beam 3 is aligned with the vehicle's central axis. The method of adjusting the position of the laser emitter 6 and aligning the middle of the calibration beam 3 with the vehicle's central axis is prior art and will not be elaborated upon here. Again, following the prompts of the calibration software, as mentioned earlier, rotating the gear drives the two racks to move closer or further apart simultaneously, thereby allowing the two calibration sliders 9 to slide simultaneously on the calibration beam 3. This effectively reduces the time and steps required to adjust the calibration sliders 9, improving adjustment efficiency and thus enhancing calibration efficiency.Simultaneously, it ensures the accuracy of the relative positions of the two calibration sliders 9, which improves calibration precision. When the two calibration sliders 9 slide simultaneously, the limiting component moves synchronously with the calibration sliders 9. After the positions of the calibration sliders 9 are adjusted, the lane keeping calibration plate 35 is placed on the two calibration sliders 9 in sequence to realize the performance verification and adjustment of the lane keeping function. It can be understood that the lane keeping function identifies lane lines through sensors such as cameras and automatically controls the vehicle's driving direction to keep the vehicle driving stably within the lane. At this time, the limiting component can simultaneously limit the calibration sliders 9 and the lane keeping calibration plate 35, eliminating the need for excessive installation and limiting mechanisms, simplifying the operation process, and improving calibration efficiency. Furthermore, when the lane keeping calibration plate 35 needs to be replaced, the limiting component can assist in the quick removal of the lane keeping calibration plate 35 without affecting the stability of the calibration sliders 9. The lane keeping calibration plate 35 can be flexibly replaced according to different needs, further improving the flexibility and efficiency of the calibration work.
[0043] As one implementation method in this embodiment, such as Figures 1 to 5 As shown, the limiting assembly includes a limiting plate 10 hinged to one side of the calibration slider 9. The limiting plate 10 magnetically engages with the lane keeping calibration plate 35. The top of the calibration slider 9 has an insertion port 24, and the bracket 7 is inserted into the insertion port 24. The limiting plate 10 achieves initial limiting of the lane keeping calibration plate 35 through its magnetic engagement with the lane keeping calibration plate 35. It can be understood that there are two limiting plates 10, symmetrically arranged on one side of the calibration slider 9. The two hinged limiting plates 10 work together to further limit the lane keeping calibration plate 35, thereby ensuring the stability of the lane keeping calibration plate 35 and facilitating the accuracy of the calibration data. When it is necessary to replace or disassemble the lane keeping calibration plate 35, the two hinged limiting plates 10 can also... Without affecting the stability of the calibration slider 9, the auxiliary lane keeping calibration plate 35 can be quickly disassembled, and the lane keeping calibration plate 35 can be flexibly replaced according to different needs, further improving the flexibility and efficiency of the calibration work. The limiting plate 10 limits the position of the calibration slider 9 on the calibration beam 3 while limiting the lane keeping calibration plate 35. When it is necessary to calibrate the parameters of the car camera, the distance between the two calibration sliders 9 can be adjusted to the width of the bracket 7. The bracket 7 is inserted into the socket 24 at the top of the calibration slider 9 to support and limit the bracket 7 and the camera calibration plate 8 on it. There is no need to set up too many installation and limiting mechanisms, which simplifies the operation process and helps to improve calibration efficiency.
[0044] In this embodiment, as Figures 3 to 6As shown, the limiting plate 10 includes a deformable part 12, one end of which abuts against the calibration slider 9, and the other end of which is connected to a connecting part 13. A hinge part 14 is provided on the side of the connecting part 13 near the calibration slider 9, and the hinge part 14 is rotatably connected to the calibration slider 9. A limiting part 16 is provided on the side of the connecting part 13 away from the deformable part 12. A notch 15 is provided between the connecting part 13 and the limiting part 16. A magnetic groove 11 is provided on the side of the connecting part 13 near the notch 15. The suction groove 11 magnetically engages with the lane keeping calibration plate 35, and the notch 15 snaps into the lane keeping calibration plate 35. As mentioned earlier, there are two limiting plates 10, and it can be understood that there are also two deformation parts 12, which respectively abut against the top and bottom of the calibration slider 9. The connecting part 13 is used to directly limit the lane keeping calibration plate 35, and the hinge part 14 provides a clear hinge point for the limiting plate 10. When the limiting plate 10 is hinged and rotated, the deformation part 12 provides support and... The calibration slider 9 has a certain reset function. One side of the calibration slider 9 has an opening 23. The limiting part 16 passes through the opening 23 and abuts against the other side of the calibration beam 3. The limiting part 16 limits the position of the calibration slider 9 on the calibration beam 3. The cross-section of the two notches 15 is elliptical. At the same time, they engage with the lane keeping calibration plate 35 to further limit the lane keeping calibration plate 35, thereby ensuring the stability of the lane keeping calibration plate 35 and helping to ensure the accuracy of the calibration data. When it is necessary to replace or remove the lane keeping calibration plate 35, the two limiting plates 10 rotate synchronously along the corresponding hinge part 14, so that the two connecting parts 13 unfold outward, thereby forming a lateral thrust on the side of the lane keeping calibration plate 35. This not only releases the limiting of the lane keeping calibration plate 35 by the notches 15, but also releases the magnetic attraction between the two connecting parts 13 and the lane keeping calibration plate 35, so that the lane keeping calibration plate 35 can be removed stably and quickly, which helps to improve the calibration efficiency.
[0045] In this embodiment, as Figure 11 and Figure 12As shown, one side of the lane keeping calibration plate 35 is provided with a connecting plate 38, and one side of the connecting plate 38 is provided with a snap-fit post 36 and a magnetic block 37. The magnetic block 37 magnetically engages with the magnetic groove 11, and the snap-fit post 36 engages with the notch 15. In use, the operator aligns the side of the lane keeping calibration plate 35 with the connecting plate 38 with the side of the limiting plate 10, aligns the snap-fit post 36 with the notch 15, and aligns the magnetic block 37 with the magnetic groove 11. Under the action of magnetic force, the magnetic block 37 and the magnetic groove 11 are magnetically connected, and at the same time, the snap-fit post 36 is inserted between the two notches 15, realizing the quick and stable fixing of the lane keeping calibration plate 35. When the lane keeping calibration plate 35 needs to be replaced or removed, the two limiting plates 10 rotate synchronously along the corresponding hinge portion 14, causing the two connecting portions 13 to unfold outward, thereby forming a lateral thrust on the side of the lane keeping calibration plate 35. As the two connecting portions 13 unfold, the two notches 15 move away from the locking post 36 at the same time, releasing the notches 15 from limiting the locking post 36. At the same time, the two magnetic blocks 37 move away from the corresponding magnetic grooves 11 at the same time, releasing the magnetic attraction between the two connecting portions 13 and the lane keeping calibration plate 35, so that the lane keeping calibration plate 35 can be disassembled stably and quickly, which is beneficial to improving calibration efficiency.
[0046] In this embodiment, as Figure 5 and Figure 6 As shown, a hinge rod 17 is hinged to the side of the limiting plate 10 near the deformable part 12. A sliding block 18 is hinged to the end of the hinge rod 17 away from the limiting plate 10. The sliding block 18 is slidably connected to the calibration slider 9. In use, the sliding block 18 is pulled to slide away from the calibration slider 9. Under the connection of the hinge rod 17, the limiting plate 10 rotates along the axis of the hinge part 14, and the deformable part 12 deforms accordingly, realizing the expansion or contraction of the two connecting parts 13 and the movement of the limiting part 16 closer to or away from the calibration beam 3. This enables the synchronous limiting of the calibration slider 9 and the lane keeping calibration plate 35 and the stable disassembly of the auxiliary lane keeping calibration plate 35.
[0047] In this embodiment, as Figure 7 and Figure 10 As shown, both ends of the calibration beam 3 are provided with connecting rods 33, and a sliding rod 34 is slidably provided in the connecting rod 33. A sliding frame 25 is fixed at the end of the sliding rod 34 away from the connecting rod 33. A sliding groove 26 is opened on one side of the sliding frame 25. The sliding block 18 is slidably connected to the sliding groove 26. The sliding rod 34 slides in the connecting rod 33 and is connected to the sliding frame 25. The sliding rod 34 serves to connect the calibration beam 3 and the sliding frame 25. The connecting rod 33 provides stable guidance and support for the sliding of the sliding frame 25, so that the sliding frame 25 always maintains a horizontal state synchronized with the calibration beam 3. The sliding block 18 slides in the sliding groove 26 in the sliding frame 25, and together with the calibration beam 3 itself, it plays a further guiding role in the sliding of the calibration slider 9, thereby ensuring the stability of the sliding of the calibration slider 9.
[0048] In this embodiment, as Figures 5 to 7 As shown, the sliding block 18 includes a sliding part 19, which slides within a groove 26. A connecting part 20 is provided on the side of the sliding part 19 away from the groove 26, and the connecting part 20 is hinged to a hinge rod 17. An abutment part 21 is provided on the side of the connecting part 20 away from the sliding part 19, and the abutment part 21 is slidably connected to the calibration slider 9. The sliding part 19, sliding within the groove 26, works in conjunction with the calibration beam 3 to guide the sliding of the calibration slider 9, ensuring the stability of the sliding of the calibration slider 9. The connecting part 20 is hinged to a limiting plate 10 via the hinge rod 17. A guide opening 22 is also provided on the side of the calibration slider 9 away from the opening 23. The abutment part 21 passes through the guide opening 22 and abuts against one side of the calibration beam 3, further limiting the position of the calibration slider 9 on the calibration beam 3. In use, pulling the sliding frame 25 causes the sliding part 19 to slide away from the calibration beam 3 under the guidance of the guide port 22, along with the connecting part 20 and the abutting part 21. Under the connection of the hinge rod 17, the limiting plate 10 rotates along the axis of the hinge part 14, and the deformable part 12 deforms accordingly, realizing the unfolding of the two connecting parts 13 and the movement of the limiting part 16 away from the calibration beam 3. At this time, the limiting of the calibration slider 9 on the calibration beam 3 is released. Through the transmission of the gear rack, the two calibration sliders 9 can be quickly adjusted. After the adjustment is completed, the sliding frame 25 is pushed in the opposite direction to make the abutting part 21 and the limiting part 16 move closer to the sides of the calibration beam 3, thereby realizing the synchronous limiting of the calibration slider 9 and the lane keeping calibration plate 35 and the stable disassembly of the auxiliary lane keeping calibration plate 35.
[0049] In this embodiment, as Figure 8 and Figure 9As shown, a connecting shaft 30 is rotatably provided in the middle section of the calibration beam 3. One end of the connecting shaft 30 is fixedly connected to the central shaft of the gear in the sliding assembly. A rotating cylinder 29 is slidably provided on the surface of the connecting shaft 30. The end of the rotating cylinder 29 away from the calibration beam 3 is rotatably connected to the sliding frame 25. A support frame 27 is provided on the side of the sliding frame 25 away from the calibration beam 3. A locking assembly is provided on one side of the support frame 27. The locking assembly is a ratchet and pawl mechanism in the prior art. Its working principle is disclosed as prior art and will not be elaborated here. The locking assembly is fixed to the rotating cylinder 29. It can be understood that the ratchet is fixed to the rotating cylinder 29. Through the cooperation of the ratchet and pawl mechanism, the rotating cylinder can be locked. The locking of the rotation position of 29 further locks the rotation position of the connecting shaft 30 and the gear, and further limits the position of the calibration slider 9. An adjustment knob 28 is provided on one side of the support frame 27. The adjustment knob 28 is connected to the locking component. It can be understood that the adjustment knob 28 is fixed to the ratchet in the ratchet and pawl mechanism. By rotating the adjustment knob 28, the ratchet, the rotating cylinder 29 and the connecting shaft 30 can be driven to rotate, thereby driving the gear to rotate and realizing the position adjustment of the calibration slider 9. The support frame 27 supports the ratchet and pawl mechanism and the adjustment knob 28, and can also be used as a handle to pull the sliding frame 25, which helps to improve the convenience of sliding the sliding frame 25.
[0050] In this embodiment, as Figure 8 and Figure 9 As shown, the inner wall of the rotating drum 29 is provided with multiple equidistant limiting grooves 31, and the surface of the connecting shaft 30 is provided with a limiting button 32. The limiting button 32 and a limiting groove 31 are engaged in a locking fit. The locking fit between the limiting button 32 and the limiting groove 31 can limit the sliding position of the rotating drum 29 on the surface of the connecting shaft 30. As mentioned above, when the operator pulls the sliding frame 25, it will cause the sliding block 18 to slide away from the calibration beam 3, thereby releasing the limiting of the calibration slider 9 by the sliding block 18 and the limiting plate 10. Conversely, it can limit the calibration slider 9 and the lane keeping calibration plate 35. It can be understood that the limiting grooves 31 located at both ends of the inner wall of the rotating drum 29 are standard points for limiting or releasing the limiting. It should be noted that both the abutting part 21 on the sliding block 18 and the limiting part 16 on the limiting plate 10 are elastic. Therefore, when the limiting groove 31 located in the middle section of the rotating cylinder 29 engages with the limiting button 32, the sliding block 18 can be slightly away from the calibration beam 3, but the abutting part 21 and the limiting part 16 still maintain the limiting of the calibration slider 9. However, the connecting part 13 on the limiting plate 10 can be extended outward to disengage from the lane keeping calibration plate 35 that is magnetically engaged with it. This allows for quick disassembly of the lane keeping calibration plate 35 without affecting the stability of the calibration slider 9. The lane keeping calibration plate 35 can be flexibly replaced according to different needs, further improving the flexibility and efficiency of the calibration work.
[0051] It should be noted that the snap-fit between the limiting groove 31 and the limiting button 32 serves as a standard point for achieving or releasing the limit, and does not play an absolute limiting role. Therefore, it will not cause resistance to the sliding of the rotating tube 29 that affects normal use. For the specific principle, please refer to the sliding mechanism at the umbrella handle, which will not be elaborated on here.
[0052] The working principle of the technical solution provided by this invention is as follows:
[0053] In use, the operator moves the calibration equipment to the front of the vehicle to be calibrated using the movable base 1. Following the prompts from the calibration software, and using the scale 5 as a reference, the operator adjusts the position of the laser emitter 6 to align with the laser receiver plate located on the vehicle body or wheels, ensuring that the middle of the calibration beam 3 is aligned with the vehicle's centerline. Again, following the prompts from the calibration software, the operator adjusts the angle of the radar reflector 4 to calibrate the vehicle radar. Then, following the prompts from the calibration software, the operator pulls the support frame 27 to move the sliding frame 25. At this time, the rotating cylinder 29 slides synchronously on the surface of the connecting shaft 30. When the sliding frame 25 slides to the point where the limit button 32 engages with the limit groove 31 inside the rotating cylinder 29 near the calibration beam 3,... Under the connection of the hinge rod 17, the sliding block 18 slides away from the calibration beam 3 under the guidance of the guide port 22. At the same time, the limiting plate 10 rotates along the axis of the hinge part 14 and moves away from the calibration beam 3. At this time, the limiting position of the calibration slider 9 on the calibration beam 3 is released. The operator turns the adjustment knob 28, which drives the connecting shaft 30 to rotate the gear. Through the transmission of the gear and rack, the two calibration sliders 9 are quickly adjusted. After the adjustment is completed, the support frame 27 is pushed in the opposite direction to drive the sliding frame 25 to slide, so that the abutment part 21 and the limiting part 16 move closer to the two sides of the calibration beam 3 to abut against each other and limit the calibration slider 9. At the same time, the operator limits the lane keeping calibration plate 35 on the side with the connecting plate 38. On one side of plate 10, align the snap-fit post 36 with the notch 15 and the magnetic block 37 with the magnetic suction groove 11. Under the action of magnetic force, the magnetic block 37 and the magnetic suction groove 11 are magnetically connected. At the same time, the snap-fit post 36 is inserted between the two notches 15, realizing the quick and stable fixation of the lane keeping calibration plate 35. This allows for smooth performance verification and adjustment of the lane keeping function. When it is necessary to replace or remove the lane keeping calibration plate 35, the operator pulls the sliding bracket 25 to make the limiting groove 31 located in the middle section of the rotating cylinder 29 engage with the limiting button 32. At this time, the sliding block 18 can move slightly away from the calibration crossbeam 3, but the abutment part 21 and the limiting part 16 still maintain the limiting of the calibration slider 9. However, the latch on the limiting plate 10 can be made to... The connecting part 13 extends outward until it detaches from the lane keeping calibration plate 35 that magnetically engages with it. This allows for quick disassembly of the lane keeping calibration plate 35 without affecting the stability of the calibration slider 9. The lane keeping calibration plate 35 can be flexibly replaced according to different needs, further improving the flexibility and efficiency of the calibration work. When it is necessary to calibrate the parameters of the car camera, the distance between the two calibration sliders 9 is adjusted to the width of the bracket 7, referring to the above steps. The bracket 7 is then inserted into the socket 24 at the top of the calibration slider 9, which supports and limits the bracket 7 and the camera calibration plate 8 on it. This eliminates the need for too many installation and limiting mechanisms, simplifies the operation process, and helps to improve calibration efficiency.
[0054] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0055] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A vehicle radar and camera calibration device, comprising a movable base, characterized in that, The mobile seat is equipped with a stand on top, a calibration beam on one side of the stand, a bracket inserted on one side of the calibration beam, calibration sliders sliding at both ends of the calibration beam, and a lane keeping calibration plate on one side of the calibration slider. A limiting component is provided, which is used to simultaneously limit the calibration slider and the lane keeping calibration plate. The limiting component is connected to the calibration beam and the calibration slider, respectively. A sliding assembly is provided to enable two calibration sliders to slide synchronously on a calibration beam. The sliding assembly is connected to the calibration beam and the calibration sliders respectively. The limiting component includes a limiting plate hinged to one side of the calibration slider. The limiting plate is magnetically engaged with the lane keeping calibration plate. The top of the calibration slider has an insertion port, and the bracket is inserted into the insertion port. The limiting plate includes a deformable part, one end of which abuts against the calibration slider, and the other end of which is connected to a connecting part. The connecting part has a hinge part on the side near the calibration slider, and the hinge part is rotatably connected to the calibration slider. The connecting part has a limiting part on the side away from the deformable part, and a notch is provided between the connecting part and the limiting part. A magnetic groove is provided on the side of the connecting part near the notch, and the magnetic groove is magnetically attracted to the lane keeping calibration plate. The notch is snapped into place with the lane keeping calibration plate. One side of the lane keeping calibration plate is provided with a connecting plate, and one side of the connecting plate is provided with a snap-fit post and a magnetic block. The magnetic block is magnetically attracted to the magnetic groove, and the snap-fit post is snap-fitted to the notch.
2. The vehicle radar and camera calibration device according to claim 1, characterized in that, A hinge rod is hinged to the side of the limiting plate near the deformed part, and a sliding block is hinged to the end of the hinge rod away from the limiting plate. The sliding block is slidably connected to the calibration slider.
3. The vehicle radar and camera calibration device according to claim 2, characterized in that, Both ends of the calibration beam are provided with connecting rods, and a sliding rod is slidably provided inside the connecting rod. A sliding frame is fixed at the end of the sliding rod away from the connecting rod, and a sliding groove is provided on one side of the sliding frame. The sliding block is slidably connected to the sliding groove.
4. The vehicle radar and camera calibration device according to claim 3, characterized in that, The sliding block includes a sliding part that slides within the slide groove. A connecting part is provided on the side of the sliding part away from the slide groove. The connecting part is hinged to the hinge rod. An abutting part is provided on the side of the connecting part away from the sliding part. The abutting part is slidably connected to the calibration slider.
5. The vehicle radar and camera calibration device according to claim 4, characterized in that, The calibration slider has a guide opening and a through opening on both sides respectively. The abutting part passes through the guide opening and abuts against one side of the calibration beam, and the limiting part passes through the through opening and abuts against the other side of the calibration beam.
6. The vehicle radar and camera calibration device according to claim 3, characterized in that, The middle section of the calibration beam is rotatably provided with a connecting shaft. One end of the connecting shaft is connected to a sliding assembly. A rotating cylinder is slidably provided on the surface of the connecting shaft. The end of the rotating cylinder away from the calibration beam is rotatably connected to the sliding frame. A support frame is provided on the side of the sliding frame away from the calibration beam. An adjustment knob is provided on one side of the support frame. The adjustment knob is connected to the rotating cylinder.
7. The vehicle radar and camera calibration device according to claim 6, characterized in that, The inner wall of the rotating drum is provided with multiple equidistant limiting grooves, and the surface of the connecting shaft is provided with a limiting button, which is engaged with one of the limiting grooves.
Citation Information
Patent Citations
Vehicle ADAS Calibration System
CN118424744B
Calibration device of vehicle-mounted radar
CN108318870A
Radar remote angle calibration system
CN218455121U