A vehicle HUD detection device and detection method

Abstract

The present invention provides a vehicle HUD detection device and detection method, belonging to the field of vehicle HUD detection technology. It comprises a detection base, the top of the detection base is fixedly connected to a mounting vertical plate, a HUD placement groove is provided on the side of the top of the detection base away from the mounting vertical plate, a HUD placement structure is provided inside the HUD placement groove, a folding cover is slidably connected to the top of the detection base; and an angle adjustment structure is connected to one side of the mounting vertical plate. The present invention provides a bionic glass plate made of polycarbonate, and uses polycarbonate to replace the front windshield of the vehicle for detection. Since the curvature of polycarbonate is adjustable, by using polycarbonate instead of glass for detection, the curvature of the bionic glass plate can be adjusted during the detection process through the curvature adjustment structure, thereby replacing the front windshield of the vehicle with different curvatures, without the need for replacement during the detection process. At the same time, the manufacturing cost of polycarbonate is lower and the shaping is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle HUD detection technology, and in particular to a vehicle HUD detection device and detection method. Background Art

[0002] Automotive HUD, also known as head-up display, refers to a driver-centric, blind-operated, multi-functional instrument panel. Its function is to project important driving information such as speed and navigation onto the windshield in front of the driver, allowing the driver to see important driving information such as speed and navigation without lowering or turning his head.

[0003] When testing automotive HUDs, it is necessary to test the optical performance, measure the brightness of the HUD under different lighting conditions to ensure clear visibility in various environments, evaluate the contrast between the HUD display content and the background to ensure that the information is clear and easy to read, and test the accuracy of the HUD display color and the absence of distortion.

[0004] In existing HUD detection devices, the vehicle HUD is placed on the actual vehicle for detection, or the front windshield of the vehicle model to be detected is purchased for detection. When other models of vehicles need to be tested, new purchases are required, resulting in a waste of resources and a significant increase in detection costs. Therefore, the present application provides a vehicle HUD detection device and detection method to meet the needs. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a vehicle HUD detection device and detection method to solve the problem in existing HUD detection devices that the vehicle HUD is placed on the actual vehicle for detection, or the front windshield of the vehicle model to be detected is purchased for detection. When other models of vehicles need to be detected, new purchases are needed, resulting in a waste of resources and a significant increase in detection costs.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A vehicle HUD detection device includes a detection base, wherein the top of the detection base is fixedly connected to a mounting riser, a HUD placement groove is formed on a side of the top of the detection base away from the mounting riser, a HUD placement structure is provided inside the HUD placement groove, and a folding cover is slidably connected to the top of the detection base; an angle adjustment structure is connected to one side of the mounting riser, and a bionic glass plate is connected to the angle adjustment structure, wherein the bionic glass plate is made of polycarbonate material and has an anti-reflection coating and a hard coating on the surface; a curvature adjustment structure is located on one side of the bionic glass plate and is connected to the bionic glass plate, and the curvature adjustment structure is used to adjust the curvature of the bionic glass plate.

[0008] Optionally, the angle adjustment structure includes a square frame fixedly connected to one side of the mounting vertical plate, and the second sleeve and the first sleeve are respectively provided on the upper and lower sides of the square frame, and the outer sides of the second sleeve and the first sleeve are respectively fixedly connected to the second pulling rod and the first pulling rod, and the ends of the second pulling rod and the first pulling rod away from the square frame are respectively hinged to the two sides of the bionic glass plate, and a square offset sleeve is rotatably connected at the middle position of one side of the square frame, and the second pulling rod and the first pulling rod are both rotatably connected to a group of offset sliders; the offset slider is a U-shaped structure, and a group of offset sliders are respectively stuck in the two sides of the interior of the square offset sleeve, and the second pulling rod and the first pulling rod are both slidably connected to the square offset sleeve through the offset slider; and it also includes a driving unit for pushing the first sleeve to slide on the square frame.

[0009] Optionally, the driving unit includes a push-pull plate fixedly connected to one side of the first sleeve, the inner side wall of the square frame is fixedly connected to a telescopic rod, and the output end of the telescopic rod is fixedly connected to one side of the push-pull plate.

[0010] Optionally, a plurality of spotlights are evenly arranged on one side of the square frame close to the curvature adjustment structure;

[0011] A circular groove is provided at the position corresponding to the square frame and the spotlight, a universal ball adapted to the circular groove is fixedly connected to the bottom of the spotlight, and the spotlight and the square frame are adapted to be connected via the universal ball and the circular groove.

[0012] Optionally, there are two groups of curvature adjustment structures, and the two groups of curvature adjustment structures are respectively installed on the upper and lower sides of the bionic glass plate; the curvature adjustment structure includes a driving motor fixedly connected to the back side of the bionic glass plate, the output end of the driving motor passes through the bionic glass plate and extends to the outside of the bionic glass plate and is fixedly connected to a winding disk, and a number of evenly distributed traction shells are symmetrically fixedly connected to the outside of the bionic glass plate near the curvature adjustment structure on both sides, and a traction unit is provided inside the traction shell, and every two adjacent traction units are connected by a traction rope, and a traction unit close to the driving motor is connected to the winding disk by a traction rope.

[0013] Optionally, a hollow groove is provided inside the traction shell, the shape of the hollow groove is adapted to the outer shape of the traction unit, and both ends of the traction shell are provided with through holes communicating with the hollow groove.

[0014] Optionally, the traction unit includes a fitting piece that fits with the inner wall of the hollow groove, one end of the fitting piece is inserted into the offset rod, the outer wall of the offset rod is fixedly connected to a limiting piece, the limiting piece is connected to the fitting piece, the outer wall of the offset rod close to the limiting piece is fixedly connected with a blocking ball, the diameter of the blocking ball is slightly larger than the aperture of the perforation, the end of the blocking ball away from the limiting piece is fixedly connected with a tension sensor, one end of the tension sensor passes through the fitting piece and extends to the outside and is fixedly connected to a traction head, the outer wall of the traction head is provided with a snap groove, the snap groove is connected with an annular snap, the annular snap is a cylindrical structure, and the diameter of the annular snap is larger than the aperture of the perforation.

[0015] Optionally, the fitting sheet is formed by a plurality of first elastic strips in a ring array with the offset rod as the axis, and both ends of the plurality of first elastic strips are fixed by fixing rings; the first elastic strip is formed by a wrapping section and a limiting section fixedly connected in sequence, the limiting section and the wrapping section are both convex structures, several of the limiting sections are distributed in a ring shape to form a semicircular structure adapted to the blocking ball, and several of the wrapping sections are distributed in a ring shape to form a conical structure; the limiting sheet is formed by a plurality of second elastic strips in a ring array with the offset rod as the axis; the limiting sheet is formed by an extrusion section, a first supporting section and a second supporting section, one end of the extrusion section is fixedly connected to the outer wall of the offset rod, and the other end of the extrusion section is fixedly connected to the second supporting section and one end of the first supporting section, the first supporting section is fixedly connected to the outer wall of the offset rod in an inward-turned shape, and the second supporting section is fixedly connected to the inner wall of the wrapping section in an outward-turned shape.

[0016] Optionally, two symmetrical sliding rods are fixedly connected to both sides of the HUD placement slot; the HUD placement structure includes a sliding seat sleeved on the outer wall of the sliding rod, and limiting clips are fixedly connected to both sides of the top of the sliding seat. The top of the limiting clip is an outward-turned structure, and a plurality of teeth are evenly fixedly connected to the bottom of the sliding seat. A plurality of slots adapted to the teeth are provided at the bottom of the HUD placement slot, and the sliding seat is fixed by the teeth and the slots.

[0017] The present application also provides a detection method for a vehicle HUD detection device, comprising the following steps:

[0018] S1. In an initial state, the bionic glass plate is used to simulate the curvature of a car's front windshield, and the rotation angle of the bionic glass plate is adjusted by the angle adjustment structure;

[0019] S2. After the angle adjustment of the bionic glass plate is completed, the vehicle HUD to be tested is installed and projected onto the bionic glass plate after installation;

[0020] S3. Select testers of different heights and vision to conduct a visual test to determine whether the vehicle HUD to be tested can ensure that the driver can see the displayed information clearly and comfortably, thereby testing the projection quality of the vehicle HUD;

[0021] S4. When the projection quality of the automotive HUD on the SUV needs to be tested, the upper and lower sides of the bionic glass plate are stretched and adjusted through the two curvature adjustment structures to achieve the target curvature. The rotation angle of the bionic glass plate is then adjusted, and the automotive HUD to be tested is installed to test the projection quality of the automotive HUD.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] In the above scheme, a bionic glass plate is set up, and the bionic glass plate is made of polycarbonate. Polycarbonate is used to replace the vehicle's front windshield for testing. Since the curvature of polycarbonate is adjustable, by using polycarbonate material instead of glass for testing, the curvature of the bionic glass plate can be adjusted through the curvature adjustment structure during the testing process, thereby replacing the vehicle's front windshield with different curvatures, without the need for replacement during the testing process. At the same time, the manufacturing cost of polycarbonate is lower and the shaping is more convenient.

[0024] By setting a curvature adjustment structure, the curvature of the bionic glass plate is adjusted through the curvature adjustment structure. After calculation, the upper and lower sides of the bionic glass plate are stretched through the curvature adjustment structure to achieve the target curvature, thereby testing the projection quality of the automotive HUD.

[0025] By setting up a traction unit, a tension sensor is installed in the traction unit. The tension sensor monitors the tension data in real time, and the offset rod will drive the limit plate to deform during the displacement process, ensuring that the offset rod is always located in the axial direction of the bonding plate, thereby ensuring that the tension sensor will not have directional deviation, ensuring the accuracy of the tension sensor data detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0027] Figure 1 This is a schematic diagram of the first-person perspective stereoscopic structure of a vehicle HUD detection device;

[0028] Figure 2 This is a schematic diagram of the second-view stereoscopic structure of the vehicle HUD detection device;

[0029] Figure 3Schematic diagram of the first-person perspective stereoscopic structure for assembling the angle adjustment structure and the bionic glass plate;

[0030] Figure 4 Schematic diagram of the second perspective stereoscopic structure assembled with the angle adjustment structure and the bionic glass plate;

[0031] Figure 5 Schematic diagram of the three-dimensional structure for assembling the bionic glass plate and the curvature adjustment structure;

[0032] Figure 6 Schematic diagram of the three-dimensional structure of the curvature adjustment structure;

[0033] Figure 7 This is a schematic diagram of the partially cutaway assembly of the traction housing and traction unit;

[0034] Figure 8 It is a schematic diagram of the three-dimensional structure of the traction unit;

[0035] Figure 9 This is a schematic diagram of the exploded three-dimensional structure of the traction unit;

[0036] Figure 10 It is a schematic diagram of the cutaway three-dimensional structure of the traction unit;

[0037] Figure 11 Schematic diagram of the three-dimensional structure cut open for testing the base;

[0038] Figure 12 for Figure 11 Schematic diagram of the three-dimensional structure at point A in the middle.

[0039] Reference numerals:

[0040] 1. Detection base; 11. Mounting riser; 12. HUD placement slot; 121. Sliding rod; 122. Card slot; 2. HUD placement structure; 21. Sliding seat; 22. Limiting clip strip; 23. Clip teeth; 3. Folding cover; 4. Curvature adjustment structure; 41. Drive motor; 42. Traction rope; 43. Traction shell; 431. Perforation; 44. Traction unit; 441. Laminating sheet; 4411. Wrapping section; 4412. Limiting section; 442. Ring buckle; 443. Traction head; 443 1. Snap groove; 444. Offset rod; 4441. Blocking ball; 445. Limiting plate; 4451. Extrusion section; 4452. First support section; 4453. Second support section; 446. Tension sensor; 5. Bionic glass plate; 6. Angle adjustment structure; 61. Square frame; 611. Spotlight; 62. Telescopic rod; 63. Push-pull plate; 64. First sleeve; 65. First pull rod; 66. Square offset sleeve; 67. Offset slider; 68. Second sleeve; 69. Second pull rod.

[0041] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0042] The following describes in detail a vehicle HUD detection device and method provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0043] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0044] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0045] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0046] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0047] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a vehicle HUD detection device, including a detection base 1, a mounting vertical plate 11 is fixedly connected to the top of the detection base 1, the mounting vertical plate 11 is used to provide a mounting position for the angle adjustment structure 6, and at the same time cooperate with the folding cover 3 to adjust the brightness of the inner side of the bionic glass plate 5, a HUD placement groove 12 is opened on the side of the top of the detection base 1 away from the mounting vertical plate 11, and a HUD placement structure 2 is provided inside the HUD placement groove 12. By mounting the vehicle HUD to be detected on the HUD placement structure 2, and then adjusting the position of the HUD placement structure 2 in the HUD placement groove 12, it is accurately projected on the bionic glass plate 5 to detect the vehicle HUD, the top of the detection base 1 is slidably connected to the folding cover 3, the folding cover 3 is the existing technology, and the brightness of the inner side of the bionic glass plate 5 can be changed by pulling the folding cover 3, so as to detect the vehicle HUD projection quality under different external brightness conditions; one side of the mounting vertical plate 11 is connected to the angle adjustment structure 6, and the bionic glass plate 5 is connected to the angle adjustment structure 6, and the angle adjustment structure 6 is used to adjust the installation of the bionic glass plate 5 The installation angle is used to simulate the different installation angles of the front windshields on different vehicles. The bionic glass plate 5 is made of polycarbonate material, and the surface is coated with an anti-reflective coating and a hard coating. Polycarbonate is used to replace the front windshield of the vehicle for testing. Since the curvature of polycarbonate is adjustable, by using polycarbonate material instead of glass for testing, the curvature of the bionic glass plate 5 can be adjusted through the curvature adjustment structure during the testing process, thereby replacing the front windshield of vehicles with different curvatures, without the need to replace it during the testing process. At the same time, the manufacturing cost of polycarbonate is lower, and Shaping is more convenient. By coating the polycarbonate surface with an anti-reflective coating, its light transmittance is increased to a level close to that of glass, and by adding a silicone hard coating, the surface hardness is increased to Mohs 4-5. The curvature adjustment structure 4 is located on one side of the bionic glass plate 5, and the curvature adjustment structure 4 is connected to the bionic glass plate 5. The curvature adjustment structure 4 is used to adjust the bending curvature of the bionic glass plate 5. After calculation, the upper and lower sides of the bionic glass plate 5 are stretched through the curvature adjustment structure 4 to achieve the target curvature, thereby testing the projection quality of the automotive HUD.

[0048] like Figures 2 to 4As shown, the angle adjustment structure 6 includes a square frame 61 fixedly connected to one side of the mounting vertical plate 11, and the upper and lower sides of the square frame 61 are respectively provided with a second sleeve 68 and a first sleeve 64, and the outer sides of the second sleeve 68 and the first sleeve 64 are respectively fixedly connected with a second pulling rod 69 and a first pulling rod 65, and the ends of the second pulling rod 69 and the first pulling rod 65 away from the square frame 61 are respectively hinged to the top and bottom surfaces of the bionic glass plate 5, and a square offset sleeve 66 is rotatably connected at the middle position of one side of the square frame 61, and the second pulling rod 69 and the first pulling rod 65 are both rotatably connected to a group of offset sliders 67; the offset slider 67 is a U-shaped structure, and a group of offset sliders 67 are respectively stuck in the two sides of the inside of the square offset sleeve 66, and the second pulling rod 69 and the first pulling rod 65 are both slidably connected to the square offset sleeve 66 through the offset slider 67; it also includes A driving unit is used to push the first sleeve 64 to slide on the square frame 61. The driving unit includes a push-pull plate 63 fixedly connected to one side of the first sleeve 64. A telescopic rod 62 is fixedly connected to the inner wall of the square frame 61. The output end of the telescopic rod 62 is fixedly connected to one side of the push-pull plate 63. Several spotlights 611 are evenly arranged on the side of the square frame 61 close to the curvature adjustment structure 4; a circular groove is provided at the corresponding position of the square frame 61 and the spotlight 611, and a universal ball adapted to the circular groove is fixedly connected to the bottom of the spotlight 611. The spotlight 611 is adapted to be connected to the square frame 61 through the universal ball and the circular groove. Through the mutual cooperation of the universal ball and the circular groove, the spotlight 611 can adjust the illumination angle. Several vertically distributed spotlights 611 are used to simulate light at different heights and directions at night to detect the projection quality of the automotive HUD in a complex environment.

[0049] When the angle of the bionic glass plate 5 needs to be adjusted, the telescopic rod 62 pushes or pulls back the push-pull plate 63, so that the first sleeve 64 fixed to the push-pull plate 63 slides on the square frame 61. When the first sleeve 64 slides, it will drive the first pulling rod 65 fixed thereto to move, thereby pushing or pulling back the bionic glass plate 5 hinged thereto to move. At the same time, when the first pulling rod 65 moves, the offset slider 67 on the first pulling rod 65 will slide on the square offset sleeve 66, thereby driving the bottom end of the square offset sleeve 66 to move. Since the square offset sleeve 66 is rotatably connected to the square frame 61, when the bottom end of the square offset sleeve 66 moves, the top end of the square offset sleeve 66 will move in the opposite direction, thereby driving the second pulling rod 69 slidably connected thereto to move, and then pulling the top end of the bionic glass plate 5, thereby achieving the angle adjustment of the bionic glass plate 5.

[0050] like Figure 2 and Figures 5 to 7As shown, the curvature adjustment structure 4 is provided with two groups, and the two groups of curvature adjustment structures 4 are respectively installed on the upper and lower sides of the bionic glass plate 5; the curvature adjustment structure 4 includes a driving motor 41 fixedly connected to the back side of the bionic glass plate 5, and the output end of the driving motor 41 passes through the bionic glass plate 5 and extends to the outside of the bionic glass plate 5 and is fixedly connected to a winding disk. The driving motor 41 is used to provide traction to pull the traction unit 44, thereby cooperating with the traction shell 43 to stretch the surface of the bionic glass plate 5, thereby changing the curvature of the bionic glass plate 5. The outer side of the bionic glass plate 5 is symmetrically fixedly connected to a number of evenly distributed traction shells 43 on both sides near the curvature adjustment structure 4. The traction shells 43 are symmetrically and evenly distributed to ensure that the traction shells 43 on both sides receive the same traction force during the stretching process of the driving motor 41. , to avoid uneven force on the traction points, resulting in inconsistent local curvature, the bionic glass plate 5 forms a wavy or S-shaped bend, and affects the detection accuracy of the vehicle HUD, a traction unit 44 is provided inside the traction shell 43, and every two adjacent traction units 44 are connected by a traction rope 42, and a traction unit 44 close to the drive motor 41 is connected to the reel through the traction rope 42, and a hollow groove is provided inside the traction shell 43, and the shape of the hollow groove is adapted to the outer shape of the traction unit 44, and both ends of the traction shell 43 are provided with a through hole 431 connected to the hollow groove. When the curvature is adjusted, the traction unit 44 monitors the traction force in real time during traction and stretching, observes whether the tension at each traction point is uniform, and ensures the accuracy of the data of the tension sensor 446 during the stretching process.

[0051] like Figures 7 to 10 As shown, the traction unit 44 includes a fitting piece 441 that fits with the inner wall of the hollow groove. When the fitting piece 441 is in the initial state, it fits tightly with the hollow groove inside the traction shell 43, thereby ensuring the stability of the traction unit 44 in the non-working state. One end of the fitting piece 441 is inserted into the offset rod 444, and the outer wall of the offset rod 444 is fixedly connected to the limiting piece 445. The limiting piece 445 is connected to the fitting piece 441, and the outer wall of the offset rod 444 is fixedly connected to the side of the limiting piece 445. A blocking ball is fixedly connected 4441, the diameter of the blocking ball 4441 is slightly larger than the aperture of the through-hole 431, and the end of the blocking ball 4441 away from the limiting plate 445 is fixedly connected to the tension sensor 446, and one end of the tension sensor 446 passes through the fitting plate 441 and extends to the outside and is fixedly connected to the traction head 443. The outer wall of the traction head 443 is provided with a snap groove 4431, and the snap groove 4431 is connected to the annular snap 442. The annular snap 442 is a cylindrical structure, and the diameter of the annular snap 442 is larger than the aperture of the through-hole 431.

[0052] When the curvature of the bionic glass plate 5 needs to be adjusted, the traction rope 42 pulls the traction head 443 fixed to it. After the traction head 443 is pulled, the tension sensor 446 connected to it is displaced, and the tension sensor 446 then drives the offset rod 444 to displace inside the bonding piece 441 until the blocking ball 4441 on the offset rod 444 squeezes the bonding piece 441 and is stuck in one end of the traction shell 43 and is limited. Therefore, under the continuous tension of the traction rope 42, the traction shell 43 is pulled, driving the bionic glass plate 5 at the position where the traction shell 43 is connected to be offset. At the same time, the tension sensor 446 monitors the tension data in real time, and the offset rod 444 will drive the limiting piece 445 to deform during the displacement process, ensuring that the offset rod 444 is always located in the axial direction of the bonding piece 441, thereby ensuring that the tension sensor 446 will not have a directional offset, thereby ensuring the accuracy of the data detection of the tension sensor 446.

[0053] The fitting sheet 441 is formed by a plurality of first elastic strips in a ring array with the offset rod 444 as the axis, and both ends of the plurality of first elastic strips are fixed by a fixing ring, which passes through one end of the first elastic strip in turn to fix it to the outer wall of the fixing ring; the first elastic strip is formed by a wrapping section 4411 and a limiting section 4412 which are fixedly connected in turn, and both the limiting section 4412 and the wrapping section 4411 are convex structures, and a plurality of limiting sections 4412 are distributed in a ring to form a semicircular structure adapted to the blocking ball 4441, and a plurality of wrapping sections 4411 are distributed in a ring to form a conical structure; the limiting section 4412 is provided in a circle and is provided with a plurality of The positioning plate 445 is composed of a plurality of second elastic strips in a ring array with the offset rod 444 as the axis; the limiting plate 445 is connected by an extrusion section 4451, a first support section 4452 and a second support section 4453. One end of the extrusion section 4451 is fixedly connected to the outer wall of the offset rod 444, and the other end of the extrusion section 4451 is fixedly connected to the second support section 4453 and one end of the first support section 4452. The first support section 4452 is fixedly connected to the outer wall of the offset rod 444 in an inward-turned shape, and the second support section 4453 is fixedly connected to the inner wall of the wrapping section 4411 in an outward-turned shape.

[0054] The first elastic strip and the second elastic strip are both integrally formed elastic structures. When the offset rod 444 offsets, it will drive the extrusion section 4451 fixed to it to offset. When the extrusion section 4451 offsets, it will squeeze the second support section 4453 and the first support section 4452 at the same time, so that as the deformation occurs, it is ensured that during the offset process, the offset rod 444 is always subjected to the extrusion force of the second support section 4453 and the first support section 4452, so that the offset direction remains unchanged.

[0055] like Figure 11 and Figure 12As shown, two symmetrical sliding rods 121 are fixedly connected to both sides of the HUD placement slot 12; the HUD placement structure 2 includes a sliding seat 21 sleeved on the outer wall of the sliding rod 121, and the top two sides of the sliding seat 21 are fixedly connected to limit clips 22, the top of the limit clips 22 is an outward-turned structure, and the bottom of the sliding seat 21 is evenly fixedly connected with a plurality of teeth 23. The bottom of the HUD placement slot 12 is provided with a plurality of slots 122 adapted to the teeth 23, and the sliding seat 21 is fixed by the teeth 23 and the slots 122.

[0056] When installing the vehicle HUD to be tested, squeeze the limiting strips 22 on both sides of the vehicle HUD until the bottom of the vehicle HUD to be tested is in contact with the top of the sliding seat 21. At the same time, the top two ends of the vehicle HUD to be tested are squeezed and limited by the limiting strips 22. The limiting strips 22 facilitate the installation and removal of the vehicle HUD. After installing the vehicle HUD, push the sliding seat 21 to the target position. At the same time, the locking teeth 23 at the bottom of the sliding seat 21 will be locked into the matching slots 122, thereby limiting the sliding seat 21 to prevent the position of the vehicle HUD to be tested from shifting during the testing process.

[0057] The present application also provides a detection method for a vehicle HUD detection device, comprising the following steps:

[0058] S1. In the initial state, the bionic glass plate 5 is used to simulate the curvature of the front windshield of the car, and the rotation angle of the bionic glass plate is adjusted by the angle adjustment structure 6;

[0059] S2. After the angle adjustment of the bionic glass plate 5 is completed, the vehicle HUD to be tested is installed and projected onto the bionic glass plate 5 after installation;

[0060] S3. Select testers of different heights and vision to conduct a visual test to determine whether the vehicle HUD to be tested can ensure that the driver can see the displayed information clearly and comfortably, thereby testing the projection quality of the vehicle HUD;

[0061] S4. When the projection quality of the vehicle HUD on the SUV needs to be tested, the upper and lower sides of the bionic glass plate 5 are stretched and adjusted by the two curvature adjustment structures 4 to achieve the target curvature. The rotation angle of the bionic glass plate 5 is then adjusted, and the vehicle HUD to be tested is installed to test the projection quality of the vehicle HUD.

[0062] The working principle of the technical solution provided by the present invention is as follows: in the initial state, the curvature of the bionic glass plate 5 is 2000R, which is used to simulate the curvature of the front windshield of a car. When adjusting the rotation angle of the bionic glass plate 5, the telescopic rod 62 is used to push or pull back the push-pull plate 63, so that the first sleeve 64 fixed to the push-pull plate 63 slides on the square frame 61. When the first sleeve 64 slides, it drives the first pulling rod 65 fixed to it to move, thereby pushing or pulling back the bionic glass hinged to it. The plate 5 is displaced, and at the same time, when the first pulling rod 65 is displaced, the offset slider 67 on the first pulling rod 65 will slide on the square offset sleeve 66, thereby driving the bottom end of the square offset sleeve 66 to displace. Since the square offset sleeve 66 is rotatably connected to the square frame 61, when the bottom end of the square offset sleeve 66 is displaced, the top end of the square offset sleeve 66 will move in the opposite direction, thereby driving the second pulling rod 69 slidably connected thereto to move, and then pulling the top end of the bionic glass plate 5, thereby realizing the angle adjustment of the bionic glass plate 5.

[0063] After the angle adjustment of the bionic glass plate 5 is completed, the installation of the vehicle HUD to be tested begins. During installation, the limiting strips 22 are squeezed on both sides of the vehicle HUD until the bottom of the vehicle HUD to be tested is in contact with the top of the sliding seat 21. At the same time, the top two ends of the vehicle HUD to be tested are squeezed and limited by the limiting strips 22. The limiting strips 22 facilitate the installation and removal of the vehicle HUD. After the vehicle HUD is installed, the sliding seat 21 is pushed to the target position. At the same time, the locking teeth 23 at the bottom of the sliding seat 21 will be locked into the matching slots 122, thereby limiting the sliding seat 21 and opening the vehicle HUD so that it is projected onto the bionic glass plate 5.

[0064] Testers of different heights and vision are selected to conduct viewing tests through their eyes to determine whether the vehicle HUD to be tested can ensure that the driver can see the displayed information clearly and comfortably. At the same time, during the testing process, the brightness of the inner side of the bionic glass plate 5 is adjusted by pulling the folding cover 3 to detect different brightness levels in the outside world. In addition, dry vertically distributed spotlights 611 are used to simulate light exposure at different heights and directions at night to determine the projection quality of the vehicle HUD.

[0065] When it is necessary to test the projection quality of the vehicle HUD on the SUV, the curvature adjustment structure 4 is used to stretch the upper and lower sides of the bionic glass plate 5 after calculation to achieve a target curvature of 3000R, thereby testing the projection quality of the vehicle HUD. When adjusting the curvature, the winding drum on the driving motor 41 winds up the traction rope 42, and the traction rope 42 pulls the traction head 443 fixed thereto. After the traction head 443 is pulled, it drives the tension sensor 446 connected thereto to move. The tension sensor 446 then drives the offset rod 444 to move inside the bonding sheet 441 until the offset rod 444 is on the bonding sheet 441. The blocking ball 4441 squeezes the bonding piece 441 and is stuck into one end of the traction shell 43 and is limited. Therefore, under the continuous tension of the traction rope 42, the traction shell 43 is pulled, and the bionic glass plate 5 at the position where the traction shell 43 is connected is driven to shift until it shifts to the target curvature. At the same time, the tension sensor 446 monitors the tension data in real time, and the offset rod 444 will drive the limiting piece 445 to deform during the displacement process, ensuring that the offset rod 444 is always located in the axial direction of the bonding piece 441, thereby ensuring that the tension sensor 446 will not shift in direction, thereby ensuring the accuracy of the data detection of the tension sensor 446.

[0066] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0067] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A vehicle HUD detection device, characterized in that: The invention comprises a detection base (1), wherein the top of the detection base (1) is fixedly connected to a mounting vertical plate (11), a HUD placement groove (12) is provided on a side of the top of the detection base (1) away from the mounting vertical plate (11), a HUD placement structure (2) is provided inside the HUD placement groove (12), and a folding cover (3) is slidably connected to the top of the detection base (1); One side of the mounting vertical plate (11) is connected to an angle adjustment structure (6), and the angle adjustment structure (6) is connected to a bionic glass plate (5), wherein the bionic glass plate (5) is made of polycarbonate material and has an anti-reflection coating and a hard coating on its surface; a curvature adjustment structure (4), the curvature adjustment structure (4) being connected to the bionic glass plate (5), and the curvature adjustment structure (4) being used to adjust the bending curvature of the bionic glass plate (5); There are two groups of curvature adjustment structures (4), and the two groups of curvature adjustment structures (4) are respectively installed on the upper and lower sides of the bionic glass plate (5); The curvature adjustment structure (4) comprises a driving motor (41) fixedly connected to the back side of the bionic glass plate (5); an output end of the driving motor (41) extends through the bionic glass plate (5) to the outside of the bionic glass plate (5) and is fixedly connected to a winding disk; a plurality of evenly distributed traction shells (43) are symmetrically fixedly connected to the outside of the bionic glass plate (5) near both sides of the curvature adjustment structure (4); a traction unit (44) is provided inside the traction shell (43); every two adjacent traction units (44) are connected to each other via a traction rope (42), and a traction unit (44) close to the driving motor (41) is connected to the winding disk via the traction rope (42).

2. The vehicle HUD detection device according to claim 1, characterized in that: The angle adjustment structure (6) includes a square frame (61) fixedly connected to one side of the mounting vertical plate (11), the upper and lower sides of the square frame (61) are respectively sleeved with a second sleeve (68) and a first sleeve (64), the outer sides of the second sleeve (68) and the first sleeve (64) are respectively fixedly connected with a second pulling rod (69) and a first pulling rod (65), the ends of the second pulling rod (69) and the first pulling rod (65) away from the square frame (61) are respectively hinged to the two sides of the bionic glass plate (5), a square offset sleeve (66) is rotatably connected at the middle position of one side of the square frame (61), and the second pulling rod (69) and the first pulling rod (65) are both rotatably connected to a group of offset sliders (67); The offset slider (67) is a U-shaped structure, and a group of the offset sliders (67) are respectively inserted into the two sides of the interior of the square offset sleeve (66), and the second pulling rod (69) and the first pulling rod (65) are both slidably connected to the square offset sleeve (66) through the offset sliders (67); It also includes a driving unit for pushing the first sleeve (64) to slide on the square frame (61).

3. The vehicle HUD detection device according to claim 2, characterized in that: The driving unit comprises a push-pull plate (63) fixedly connected to one side of the first sleeve (64); a telescopic rod (62) is fixedly connected to the inner side wall of the square frame (61); and an output end of the telescopic rod (62) is fixedly connected to one side of the push-pull plate (63).

4. The vehicle HUD detection device according to claim 2, characterized in that: A plurality of spotlights (611) are evenly arranged on one side of the square frame (61) close to the curvature adjustment structure (4); A circular groove is provided at a position corresponding to the square frame (61) and the spotlight (611); a universal ball adapted to the circular groove is fixedly connected to the bottom of the spotlight (611); the spotlight (611) and the square frame (61) are adapted to be connected via the universal ball and the circular groove.

5. The vehicle HUD detection device according to claim 1, characterized in that: A hollow groove is provided inside the traction shell (43), the shape of the hollow groove being compatible with the outer shape of the traction unit (44), and through holes (431) communicating with the hollow groove are provided at both ends of the traction shell (43).

6. The vehicle HUD detection device according to claim 5, characterized in that: The traction unit (44) includes a fitting sheet (441) fitted with the inner wall of the hollow groove, one end of the fitting sheet (441) is inserted into the offset rod (444), the outer wall of the offset rod (444) is fixedly connected to a limiting sheet (445), the limiting sheet (445) is connected to the fitting sheet (441), and the outer wall of the offset rod (444) close to the limiting sheet (445) is fixedly connected to a blocking ball (4441), the diameter of the blocking ball (4441) is slightly larger than the aperture of the through hole (431), so One end of the blocking ball (4441) away from the limiting plate (445) is fixedly connected to a tension sensor (446), one end of the tension sensor (446) passes through the fitting plate (441) and extends to the outside to be fixedly connected to a traction head (443), an outer wall of the traction head (443) is provided with a snap groove (4431), and an annular snap groove (442) is connected to the snap groove (4431), the annular snap (442) is a cylindrical structure, and the diameter of the annular snap (442) is larger than the aperture of the through hole (431).

7. The vehicle HUD detection device according to claim 6, characterized in that: The bonding sheet (441) is formed by a plurality of first elastic strips in a ring array with the offset rod (444) as an axis, and both ends of the plurality of first elastic strips are fixed by fixing rings; The first elastic strip is formed by a wrapping section (4411) and a limiting section (4412) which are fixedly connected in sequence. The limiting section (4412) and the wrapping section (4411) are both convex structures. A plurality of the limiting sections (4412) are distributed in an annular shape to form a semicircular structure adapted to the blocking ball (4441). A plurality of the wrapping sections (4411) are distributed in an annular shape to form a conical structure. The limiting piece (445) is formed by a plurality of second elastic strips in a ring array with the offset rod (444) as the axis; The limiting piece (445) is formed by connecting an extrusion section (4451), a first supporting section (4452) and a second supporting section (4453). One end of the extrusion section (4451) is fixedly connected to the outer wall of the offset rod (444), and the other end of the extrusion section (4451) is fixedly connected to the second supporting section (4453) and one end of the first supporting section (4452). The first supporting section (4452) is fixedly connected to the outer wall of the offset rod (444) in an inward-turned shape, and the second supporting section (4453) is fixedly connected to the inner wall of the wrapping section (4411) in an outward-turned shape.

8. The vehicle HUD detection device according to claim 1, characterized in that: Two symmetrical sliding rods (121) are fixedly connected to both sides of the HUD placement slot (12); The HUD placement structure (2) comprises a sliding seat (21) sleeved on the outer wall of the slide rod (121), and the top two sides of the sliding seat (21) are fixedly connected to limit clamping strips (22), the top of the limit clamping strips (22) is an outward-turned structure, and the bottom of the sliding seat (21) is evenly fixedly connected with a plurality of clamping teeth (23), and the bottom of the HUD placement slot (12) is provided with a plurality of clamping grooves (122) adapted to the clamping teeth (23), and the sliding seat (21) is fixed by the clamping teeth (23) and the clamping grooves (122).

9. The detection method of the vehicle HUD detection device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, in an initial state, the bionic glass plate (5) is used to simulate the curvature of the front windshield of a car, and the rotation angle of the bionic glass plate (5) is adjusted by the angle adjustment structure (6); S2, after the angle adjustment of the bionic glass plate (5) is completed, the vehicle HUD to be tested is installed, and after the installation is completed, it is projected onto the bionic glass plate (5); S3. Select testers of different heights and vision to conduct a visual test to determine whether the vehicle HUD to be tested can ensure that the driver can see the displayed information clearly and comfortably, thereby testing the projection quality of the vehicle HUD; S4. When it is necessary to test the projection quality of the vehicle HUD on the SUV, the upper and lower sides of the bionic glass plate (5) are stretched and adjusted by the two curvature adjustment structures (4) to achieve the target curvature, and then the rotation angle of the bionic glass plate (5) is adjusted, and the vehicle HUD to be tested is installed, thereby testing the projection quality of the vehicle HUD.

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