Test device

Abstract

This application discloses a testing device, belonging to the field of vehicle technology. The testing device includes a base, a light-transmitting element, a bracket, and a rotating mechanism. The base is adapted to support the head-up display (HUD) to be tested. The light-transmitting element is connected to the base and allows sunlight to pass through and enter the HUD. The rotating mechanism is disposed inside the bracket and connected to the base. When the rotating mechanism rotates, it drives the base to rotate so that the light spot formed by sunlight falls on the center of the image generation unit of the HUD under test. Using the technical solution provided in this application, a more realistic simulation of sunlight backflow can be achieved, improving testing efficiency.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more specifically to a testing device. Background Technology

[0002] To ensure safer and more stable driving, an increasing number of vehicles are equipped with head-up displays (HUDs). HUDs can overlay various information, such as navigation, driving, and environmental information, within the driver's field of vision, preventing the driver from looking down at information and deviating from the road, thus avoiding dangerous driving consequences. Due to the reversibility of light paths, natural light can converge along the projection path of the HUD onto a specific point in the image generation unit, causing the unit to overheat and potentially burn out in a short time. Therefore, during the development phase of HUDs, it is necessary to conduct sunlight backflow tests to better understand their performance and provide a better basis for designing heat dissipation structures.

[0003] In related technologies, a beam of light with a variable angle is typically used to simulate natural light and shine it onto a head-up display (HUD) that remains stationary, thereby testing the HUD's performance. However, the aforementioned sunlight backflow test process cannot realistically simulate the usage scenario of a HUD. Summary of the Invention

[0004] In view of this, this application provides a testing device that can more realistically simulate a sunlight backflow scenario and improve testing efficiency.

[0005] On the one hand, embodiments of this application provide a testing device, which includes a base, a light-transmitting element, a bracket, and a rotating mechanism;

[0006] The base is adapted to support the head-up display to be tested;

[0007] The light-transmitting element is connected to the base body, and the light-transmitting element is used to allow sunlight to pass through and enter the head-up display under test;

[0008] The rotating mechanism is located inside the bracket and is connected to the base. When the rotating mechanism rotates, it can drive the base to rotate so that the light spot formed by the sunlight falls on the center of the image generation unit of the head-up display under test.

[0009] Optionally, the bracket has a first groove, the opening of which faces the base.

[0010] The rotating mechanism is disposed within the first groove.

[0011] Optionally, the seat body includes a bottom wall and a first side connecting portion and a second side connecting portion disposed opposite to each other, wherein the first side connecting portion and the second side connecting portion are respectively connected to the bottom wall;

[0012] The first groove includes a first groove wall and a second groove wall disposed opposite to each other. The first groove wall is provided with a first mounting part, and the second groove wall is provided with a second mounting part. The first mounting part and the second mounting part are disposed opposite to each other.

[0013] The first side connecting part is connected to a portion of the first bolt, and the other portion of the first bolt is rotatably engaged in the first mounting part; the second side connecting part is connected to a portion of the second bolt, and the other portion of the second bolt is rotatably engaged in the second mounting part;

[0014] The first bolt and the second bolt are coaxial, and when the rotating mechanism rotates, it drives the base to rotate around the axial direction of the first bolt.

[0015] Optionally, the first groove includes a third groove wall and a fourth groove wall disposed opposite to each other, and the first groove wall, the third groove wall, the second groove wall and the fourth groove wall are connected in sequence;

[0016] The rotating mechanism includes a lead screw and a guide block. The two ends of the lead screw are connected to the third groove wall and the fourth groove wall, respectively. The guide block is sleeved on the lead screw and is rotatably connected to the bottom wall. When the lead screw rotates, the guide block moves along the axial direction of the lead screw, and the guide block drives the bottom wall to rotate around the axial direction of the first bolt.

[0017] Optionally, the rotating mechanism further includes a third bolt and a rotating component;

[0018] The side of the guide block that is parallel to the first groove wall or the second groove wall is connected to the third bolt;

[0019] One side of the rotating component is connected to the bottom wall, and the other side of the rotating component is provided with a second groove. The opening of the second groove is away from the bottom wall, and a part of the third bolt is engaged in the second groove.

[0020] When the guide block moves, it causes the rotating component to rotate around the axial direction of the first bolt.

[0021] Optionally, the rotating mechanism further includes a rotating wheel and a rocker arm, with both sides of the rotating wheel fixedly connected to either end of the lead screw and the rocker arm, respectively.

[0022] Optionally, the testing device further includes a support component and a rotating shaft;

[0023] One end of the rotating shaft is fixedly connected to the bearing member, and the other end of the rotating shaft is rotatably connected to the bottom of the first groove.

[0024] Optionally, the bottom of the first groove is provided with a mounting hole, and the rotating shaft is sleeved in the mounting hole.

[0025] Optionally, the testing device further includes a support member, one end of which is connected to the side of the carrier member away from the support frame, and the height of the support member is adjustable.

[0026] Optionally, the testing device further includes an image acquisition mechanism connected to the base.

[0027] The light-transmitting element has an imaging area, and the image acquisition mechanism is used to acquire an image within the imaging area.

[0028] The testing apparatus provided in this application includes a base, a light-transmitting element, a support, and a rotating mechanism. The base is suitable for supporting the head-up display (HUD) under test. The light-transmitting element is connected to the base and allows sunlight to pass through and enter the HUD, thereby more realistically simulating the effect of sunlight illuminating the HUD in a real-world usage scenario. The rotating mechanism is located inside the support and is connected to the base. When the rotating mechanism rotates, it drives the base to rotate so that the sunlight spot falls on the center of the image generation unit within the HUD. Thus, by rotating the rotating mechanism, the incident angle of sunlight can be adjusted more conveniently, ensuring that the sunlight spot always falls on the center of the image generation unit, thereby improving testing efficiency. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is an exploded view of a testing device provided in an embodiment of this application;

[0031] Figure 2 This is an exploded view of a testing device provided in an embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the structure of a testing device provided in this application when the base and the rotating mechanism are not connected;

[0033] Figure 4 This is a schematic diagram of the structure of a testing device provided in this application when the middle seat is connected to the rotating mechanism;

[0034] Figure 5 This is an exploded view of a testing device provided in an embodiment of this application.

[0035] Figure label:

[0036] 100, base; 110, bottom wall; 120, first side connecting part; 130, second side connecting part; 140, third side connecting part; 150, first support column; 160, second support column; 141, first slot; 151, second slot; 161, third slot;

[0037] 200, Light-transmitting component; 210, First side; 220, Second side; 230, Third side;

[0038] 300, bracket; 310, first groove; 311, first groove wall; 312, second groove wall; 313, third groove wall; 314, fourth groove wall; 315, groove bottom; 316, through hole; 3111, first mounting part; 3121, second mounting part;

[0039] 400. Rotating mechanism; 410. Lead screw; 420. Guide block; 430. Third bolt; 440. Rotating component; 450. Rotating wheel; 460. Rocker arm; 441. Second groove;

[0040] 500. Head-up display to be tested;

[0041] 600, First Bolt;

[0042] 700, Second Bolt;

[0043] 800. Load-bearing components;

[0044] 900, pivot;

[0045] 1000, Support components;

[0046] 1100. Image acquisition mechanism; 1110. Fixture; 1120. Pan-tilt unit; 1130. Camera;

[0047] 1200. Level.

[0048] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by those skilled in the art.

[0051] To make the technical solutions and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0052] like Figure 1 As shown in the figure, this application provides a testing device, which includes a base 100, a light-transmitting element 200, a bracket 300 and a rotating mechanism 400.

[0053] The base 100 is suitable for supporting the head-up display 500 under test. A light-transmitting element 200 is connected to the base 100 and allows sunlight to pass through and enter the head-up display 500 under test, thereby more realistically simulating the effect of sunlight irradiation on the head-up display 500 in a real-world usage scenario. It should be noted that when using the testing device provided in this application embodiment for testing, the head-up display 500 under test is in a working state. The testing device must be placed in a sunny and unobstructed area to ensure that sunlight can enter the head-up display 500 under test. The light-transmitting element 200 shown in the accompanying drawings is only a part of the light-transmitting element 200, and its size can be adjusted as needed. The image source of the head-up display 500 under test is magnified and projected onto the light-transmitting element 200, allowing observation of image changes and understanding of performance changes in the head-up display 500 under test through the light-transmitting element 200.

[0054] A rotating mechanism 400 is located inside the bracket 300 and is connected to the base 100. When the rotating mechanism 400 rotates, it drives the base 100 to rotate, ensuring that the sunlight spot falls at the center of the image generation unit of the head-up display 500 under test. It should be noted that the top of the head-up display 500 under test typically has a light-transmitting dustproof film. The user's head-up display includes optical elements such as curved and flat mirrors, as well as an image generation unit. The user can observe with the naked eye through the dustproof film whether the sunlight spot formed after reflection by the curved and flat mirrors falls at the center of the image generation unit. If it does not fall at the center, the angle of the head-up display 500 can be adjusted more easily by rotating the rotating mechanism 400, thereby adjusting the angle of sunlight incidence until the sunlight spot is observed to fall at the center of the image generation unit. Rotation is then stopped, ensuring that the sunlight spot remains at the center of the image generation unit during the sunlight backflow test.

[0055] It's important to note that head-up displays (HUDs) generally work by using optical elements such as curved and flat mirrors to magnify the image generated by the image generation unit and project the magnified image onto the windshield. The light is then reflected off the windshield and enters the user's eye, allowing them to see the projected image within a designated area on the windshield. However, due to the optical focusing properties of curved mirrors, when sunlight is reflected back into the image generation unit, the resulting light spot can fall on a specific point on the unit. Within a few minutes, this can cause the unit's temperature to rise, potentially even burning out. Under specific conditions, when the vehicle angle and sunlight angle meet certain criteria, the light spot can remain in the center of the image generation unit for an extended period. Because the radiation area of ​​the light spot at the center of the unit is the largest, the unit heats up the fastest under these specific conditions compared to when the light spot falls on other, non-central locations. When conducting a sunlight backflow test, if the performance change of the image generation unit can be measured when the light spot always falls on the center of the image generation unit, the test efficiency and the accuracy of the test results can be improved.

[0056] The following is in conjunction with the appendix Figures 1 to 5 The details and functions of the testing apparatus provided in the embodiments of this application will be described in more specific and detailed manner.

[0057] like Figure 5As shown, in some embodiments, there are two head-up displays 500 to be tested, which are mounted side-by-side on the base 100. The two head-up displays 500 rotate synchronously with the base 100, and their placement angles are the same, thus meeting the testing requirements of a control test and enabling the testing device to meet different testing needs, thereby improving its practicality. Generally, the internal heat dissipation components or optical elements of the two head-up displays 500 are slightly different. It should be noted that when using the testing device provided in this application embodiment, sunlight is focused by the curved mirrors of the head-up displays 500 to form light spots, which then fall at the center of the image generation unit of the corresponding head-up display. It is understood that by comparing the test results of the two head-up displays 500, the structure of the head-up displays 500 can be further improved to enhance their performance.

[0058] like Figure 1 As shown, in some embodiments, the bracket 300 has a first groove 310, the opening of which faces the base 100. A rotating mechanism 400 is disposed within the first groove 310. By disposing the rotating mechanism 400 within the first groove 310, the volume occupied by the testing device can be reduced, making it easier to move or store the testing device.

[0059] Combination Figure 2 and Figure 3 As shown, in some embodiments, the seat 100 includes a bottom wall 110 and a first side connecting portion 120 and a second side connecting portion 130 disposed opposite to each other, the first side connecting portion 120 and the second side connecting portion 130 being connected to the bottom wall 110 respectively. It should be noted that the first side connecting portion 120 and the second side connecting portion 130 can both be connecting blocks or connecting plates.

[0060] The first groove 310 includes a first groove wall 311 and a second groove wall 312 disposed opposite to each other. The first groove wall 311 is provided with a first mounting portion 3111, and the second groove wall 312 is provided with a second mounting portion 3121. The first mounting portion 3111 and the second mounting portion 3121 are disposed opposite to each other. A first side connecting portion 120 is connected to a portion of a first bolt 600, and the other portion of the first bolt 600 is rotatably engaged in the first mounting portion 3111. A second side connecting portion 130 is connected to a portion of a second bolt 700, and the other portion of the second bolt 700 is rotatably engaged in the second mounting portion 3121.

[0061] In this design, the first bolt 600 and the second bolt 700 are coaxial. When the rotating mechanism 400 rotates, it drives the base 100 to rotate around the axial direction of the first bolt 600. It can be understood that when the base 100 rotates, it can synchronously rotate the head-up display 500 mounted on the base 100, thereby adjusting the angle of the head-up display 500 to center the light spot position on the image generation unit. This structure allows for more flexible and convenient adjustment of the angle of the head-up display 500, improving testing efficiency.

[0062] like Figure 2 As shown, in some embodiments, the bottom wall 110 is adapted to support the head-up display 500 under test. The bottom wall 110 and the head-up display 500 under test can be fixed together by bolts or other fasteners 1110, or by welding or bonding.

[0063] In some embodiments, both the first mounting portion 3111 and the second mounting portion 3121 are mounting holes. The portion of the first bolt 600 not connected to the first side connecting portion 120 is rotatably engaged in the first mounting portion 3111, and the portion of the second bolt 700 not connected to the second side connecting portion 130 is rotatably engaged in the second mounting portion 3121. This facilitates the assembly or disassembly of the base 100.

[0064] like Figure 2 As shown, in some embodiments, both the first mounting portion 3111 and the second mounting portion 3121 are mounting grooves, with the openings of both grooves facing the head-up display 500 to be tested. The portion of the first bolt 600 not connected to the first side connecting portion 120 is rotatably engaged in the first mounting portion 3111, and the portion of the second bolt 700 not connected to the second side connecting portion 130 is rotatably engaged in the second mounting portion 3121. This facilitates the assembly or disassembly of the base 100.

[0065] like Figure 2As shown, in some embodiments, both the first bolt 600 and the second bolt 700 are semi-threaded bolts. The first bolt 600 includes a connected first threaded portion and a first unthreaded portion, and the second bolt 700 includes a connected second threaded portion and a second unthreaded portion. The first threaded portion is connected to the first side connecting portion 120, and the first unthreaded portion is rotatably engaged within the first mounting portion 3111. The second threaded portion is connected to the second side connecting portion 130, and the second unthreaded portion is rotatably engaged within the second mounting portion 3121. It should be noted that the outer wall of the unthreaded portion of a semi-threaded bolt is generally relatively smooth. Therefore, by configuring it according to the above structure, the resistance encountered by the first bolt 600 when rotating relative to the first mounting portion 3111 can be reduced, and the wear of the first bolt 600 on the first mounting portion 3111 can be reduced. Simultaneously, the resistance encountered by the second bolt 700 when rotating relative to the second mounting portion 3121 can also be reduced, and the wear of the second bolt 700 on the second mounting portion 3121 can be reduced. This extends the service life of the testing device.

[0066] like Figure 5 As shown, in some embodiments, the base 100 further includes a third-side connecting portion 140, a first support column 150, and a second support column 160. The first support column 150 and the first-side connecting portion 120 are located on the same side of the bottom wall 110, and the second support column 160 and the second-side connecting portion 130 are located on the same side of the bottom wall 110. The third-side connecting portion 140, the first-side connecting portion 120, and the second-side connecting portion 130 are located on different sides of the bottom wall 110, respectively. The first support column 150, the second support column 160, and the third-side connecting portion 140 are connected to the bottom wall 110 and extend in a direction away from the bracket 300. The surface of the third-side connecting portion 140 near the head-up display 500 under test is provided with a first slot 141, the surface of the first support column 150 near the head-up display 500 under test is provided with a second slot 151, and the surface of the second support column 160 near the head-up display 500 under test is provided with a third slot 161. The light-transmitting element 200 includes a first side 210, a second side 220, and a third side 230 connected in sequence. The first side 210 and the third side 230 are respectively inserted into the second slot 151 and the third slot 161, and the second side 220 is inserted into the first slot 141. This achieves the fixation of the light-transmitting element 200.

[0067] Combination Figure 5As shown, in some embodiments, the vertical distance between the first slot 141 and the bottom wall 110 is a first distance, the vertical distance between the second slot 151 and the bottom wall 110 is a second distance, and the vertical distance between the third slot 161 and the bottom wall 110 is a third distance. The second distance is equal to the third distance, and the first distance is less than the second distance. This allows the light-transmitting element 200 to be tilted, more realistically simulating the angle of a vehicle's windshield. It is understood that the tilt angle of the light-transmitting element 200 can be determined according to requirements, and the heights of the first slot 141, the second slot 151, and the third slot 161 relative to the bottom wall 110 can be adjusted based on the tilt angle.

[0068] Combination Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the first groove 310 includes a third groove wall 313 and a fourth groove wall 314 disposed opposite to each other, with the first groove wall 311, the third groove wall 313, the second groove wall 312, and the fourth groove wall 314 connected in sequence. The rotating mechanism 400 includes a lead screw 410 and a guide block 420. The two ends of the lead screw 410 are respectively connected to the third groove wall 313 and the fourth groove wall 314. The guide block 420 is sleeved on the lead screw 410 and is rotatably connected to the bottom wall 110. When the lead screw 410 rotates, the guide block 420 moves along the axial direction of the lead screw 410, causing the bottom wall 110 to rotate around the axial direction of the first bolt 600. It can be understood that the positions of the two ends of the lead screw 410 remain unchanged, and the movement of the guide block 420 along the axial direction of the lead screw 410 means that when the lead screw 410 rotates, the guide block 420 moves relative to the lead screw 410 along the axial direction of the lead screw 410. It should be noted that by using the lead screw 410 to drive the bottom wall 110 to rotate, which in turn drives the seat 100 to rotate, the angle of the head-up display to be tested can be adjusted more flexibly, thus improving testing efficiency.

[0069] like Figure 3 As shown, in some embodiments, the axial direction of the lead screw 410 is perpendicular to the axial direction of the first bolt 600, thereby ensuring that when the lead screw 410 rotates, the seat 100 can rotate stably about the axial direction of the first bolt 600.

[0070] like Figure 2 As shown, in some embodiments, at least one through hole 316 is provided on the first groove wall 311, the second groove wall 312, the third groove wall 313 or the fourth groove wall 314. Figure 2 As shown, each of the first groove wall 311, the second groove wall 312, the third groove wall 313, or the fourth groove wall 314 has two through holes 316. It should be noted that the through holes 316 not only reduce weight but also facilitate the observation of the rotation of the rotating mechanism 400 by the test personnel.

[0071] Combination Figure 3and Figure 4 As shown, in some embodiments, the rotating mechanism 400 further includes a third bolt 430 and a rotating member 440. The side of the guide block 420 parallel to the first groove wall 311 or the second groove wall 312 is connected to the third bolt 430. One side of the rotating member 440 is connected to the bottom wall 110, and the other side of the rotating member 440 is provided with a second groove 441. The opening of the second groove 441 faces away from the bottom wall 110, and a portion of the third bolt 430 is engaged in the second groove 441. When the guide block 420 moves, it drives the rotating member 440 to rotate around the axial direction of the first bolt 600. It can be understood that when the rotating member 440 rotates, it can drive the bottom wall 110 to rotate synchronously, thereby driving the head-up display 500 mounted on the bottom wall 110 to rotate synchronously, thus allowing for more flexible and convenient adjustment of the angle of the head-up display 500. It should be noted that "part of the third bolt 430 is engaged in the second groove 441" means that the third bolt 430 is movably engaged in the second groove 441. When the guide block 420 moves, the third bolt 430 can move along the groove wall of the second groove 441 towards the bottom of the groove 441, at which time it drives the rotating component 440 to rotate around the axial direction of the first bolt 600 in a first direction; or the third bolt 430 can move along the groove wall of the second groove 441 away from the bottom of the groove 441, at which time it drives the rotating component 440 to rotate around the axial direction of the first bolt 600 in a second direction. The first direction and the second direction are opposite, for example, one of the first direction and the second direction is clockwise and the other is counterclockwise.

[0072] like Figure 3 As shown, in some embodiments, the rotating mechanism 400 further includes a rotating wheel 450 and a rocker arm 460. The two sides of the rotating wheel 450 are fixedly connected to either end of the lead screw 410 and the rocker arm 460, respectively. It should be noted that the rotating wheel 450, lead screw 410, and rocker arm 460 rotate synchronously. When the angle of the head-up display 500 under test needs to be adjusted, the tester can hold the rocker arm 460 to rotate the lead screw 410. Thus, when the light spot deviates from the center of the image generation unit, the position of the head-up display 500 under test can be adjusted in time by driving the lead screw 410 to rotate until the light spot falls on the center of the image generation unit, at which point the rotation of the lead screw 410 stops, thereby improving testing efficiency and the accuracy of test results.

[0073] like Figure 1As shown, in some embodiments, the testing device further includes a support member 800 and a rotating shaft 900. One end of the rotating shaft 900 is fixedly connected to the support member 800, and the other end is rotatably connected to the bottom 315 of the first groove 310. This arrangement allows the bracket 300 to rotate around the first rotating shaft 900. Since the bracket 300 is connected to the base 100 via a first bolt 600 and a second bolt 700, the base 100 can rotate with the bracket 300. Through rotational engagement with the rotating mechanism 400, the angle of the head-up display 500 mounted on the base 100 can be adjusted omnidirectionally and more flexibly. In some embodiments, the axis of the rotating shaft 900 is perpendicular to the axis of the first bolt 600. This ensures that the angle of the head-up display 500 under test can be adjusted omnidirectionally.

[0074] like Figure 1 As shown, in some embodiments, the bottom 315 of the first groove 310 is provided with a mounting hole (not shown in the figure), and the rotating shaft 900 is fitted into the mounting hole. It should be noted that the bottom 315 can rotate relative to the rotating shaft 900, thereby adjusting the angle of the bracket 300. It should also be noted that there is sufficient friction between the wall of the mounting hole and the outer wall of the rotating shaft 900 to prevent the bracket 300 from rotating back when it reaches a designated position, thus ensuring the stability of the rotation process.

[0075] like Figure 1 As shown, in some embodiments, the testing device further includes a support member 1000, one end of which is connected to the side of the support member 800 opposite to the bracket 300. The height of the support member 1000 is adjustable. In some embodiments, the number of support members 1000 is at least two, and may also be three, four, or more. By adjusting the height of each support member 1000, the height of the bracket 300 located on the support member 800 can be adjusted so that the bracket 300 can be in a horizontal state, so that the force on the bracket 300 is evenly distributed, and the stability of the subsequent rotation process is improved.

[0076] like Figure 1 As shown, in some embodiments, the testing device further includes a level 1200, which is installed at the bottom 315 of the first groove 310. It should be noted that during the adjustment of the support member 1000's height, the tester can observe the state of the level 1200 to promptly determine whether the bracket 300 is level, thus allowing for more accurate adjustment of the support member 1000's height.

[0077] like Figure 2As shown, in some embodiments, the testing device further includes an image acquisition mechanism 1100, which is connected to the base 100. The light-transmitting element 200 has an imaging area, and the image acquisition mechanism 1100 is used to acquire the image within the imaging area. It should be noted that the imaging area refers to the area where the head-up display 500 under test projects the image source onto the light-transmitting element 200. It is understood that, due to the reversibility of the light path, the light spot formed by sunlight converging through the curved mirror will also be presented on the light-transmitting element 200. By acquiring the image within the imaging area, the imaging of the image generation unit and the changes in the light spot can be recorded in a timely manner, so as to record the entire process and time of sunlight backflow. This allows the tester to more intuitively grasp the impact of sunlight backflow on the head-up display 500 under test and the performance of the head-up display 500 under test, thereby enabling more accurate improvement of the relevant structure of the head-up display 500 under test and facilitating the improvement of its performance.

[0078] like Figure 2 As shown, in some embodiments, the image acquisition mechanism 1100 includes a fixing member 1110, a pan-tilt unit 1120, and a camera 1130. The two ends of the fixing member 1110 are connected to the bottom wall 110 and the pan-tilt unit 1120, respectively. The pan-tilt unit 1120 is connected to the camera 1130 and is used to adjust the angle of the camera 1130 so that the camera 1130 is aligned with the imaging area on the light-transmitting element 200. It should be noted that the pan-tilt unit 1120 can be a spherical gimbal. The image acquisition mechanism 1100 corresponds one-to-one with the head-up display 500 under test; that is, each camera 1130 is aligned with the imaging area of ​​one head-up display 500 under test.

[0079] In some embodiments, the image acquisition mechanism 1100 is connected to a computing device (not shown), and the image acquisition mechanism 1100 transmits the acquired images to the computing device. Test personnel can view the content acquired by the image acquisition mechanism 1100 on the computing device. The computing device can be a computer or other device capable of displaying the acquired content.

[0080] The testing device provided in this application embodiment can more realistically simulate the scenario of sunlight backflow, improve testing efficiency and the accuracy of test results. At the same time, since the test device has a simple composition structure, the manufacturing cost of the test device can be reduced.

[0081] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0082] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A testing device, characterized in that, The testing device includes a base (100), a light-transmitting element (200), a bracket (300), and a rotating mechanism (400). The base (100) is adapted to support the head-up display (500) to be tested; the base (100) includes a bottom wall (110) and a first side connecting part (120) and a second side connecting part (130) disposed opposite to each other, the first side connecting part (120) and the second side connecting part (130) being connected to the bottom wall (110) respectively; The light-transmitting element (200) is connected to the base (100), and the light-transmitting element (200) is used to allow sunlight to pass through and enter the head-up display (500) under test. The bracket (300) has a first groove (310) with its opening facing the seat (100); the first groove (310) includes a first groove wall (311) and a second groove wall (312) disposed opposite to each other, the first groove wall (311) having a first mounting portion (3111) and the second groove wall (312) having a second mounting portion (3121), the first mounting portion (3111) and the second mounting portion (3121) being disposed opposite to each other; the first side connecting portion (120) is connected to a portion of the first bolt (600), the other portion of the first bolt (600) being rotatably engaged in the first mounting portion (3111); the second side connecting portion (130) is connected to a portion of the second bolt (700), the other portion of the second bolt (700) being rotatably engaged in the second mounting portion (3121); wherein the first bolt (600) and the second bolt (700) are coaxial; The rotating mechanism (400) is disposed inside the bracket (300) and is disposed in the first groove (310). The rotating mechanism (400) is connected to the seat (100). When the rotating mechanism (400) rotates, it drives the seat (100) to rotate around the axis of the first bolt (600) so that the light spot formed by the sunlight falls on the center of the image generation unit of the head-up display (500) under test.

2. The testing apparatus according to claim 1, characterized in that, The first groove (310) includes a third groove wall (313) and a fourth groove wall (314) disposed opposite to each other, and the first groove wall (311), the third groove wall (313), the second groove wall (312) and the fourth groove wall (314) are connected in sequence; The rotating mechanism (400) includes a lead screw (410) and a guide block (420). The two ends of the lead screw (410) are connected to the third groove wall (313) and the fourth groove wall (314) respectively. The guide block (420) is sleeved on the lead screw (410) and is rotatably connected to the bottom wall (110). When the lead screw (410) rotates, the guide block (420) moves along the axial direction of the lead screw (410) and the guide block (420) drives the bottom wall (110) to rotate around the axial direction of the first bolt (600).

3. The testing apparatus according to claim 2, characterized in that, The rotating mechanism (400) also includes a third bolt (430) and a rotating component (440). The side of the guide block (420) parallel to the first groove wall (311) or the second groove wall (312) is connected to the third bolt (430); One side of the rotating part (440) is connected to the bottom wall (110), and the other side of the rotating part (440) is provided with a second groove (441). The opening of the second groove (441) is away from the bottom wall (110), and a part of the third bolt (430) is engaged in the second groove (441). When the guide block (420) moves, it causes the rotating component (440) to rotate around the axial direction of the first bolt (600).

4. The testing apparatus according to claim 2, characterized in that, The rotating mechanism (400) further includes a rotating wheel (450) and a rocker arm (460), with the two sides of the rotating wheel (450) being fixedly connected to either end of the lead screw (410) and the rocker arm (460), respectively.

5. The testing apparatus according to claim 1, characterized in that, The testing device also includes a support (800) and a rotating shaft (900). One end of the rotating shaft (900) is fixedly connected to the bearing (800), and the other end of the rotating shaft (900) is rotatably connected to the bottom (315) of the first groove (310).

6. The testing apparatus according to claim 5, characterized in that, The bottom (315) of the first groove (310) is provided with a mounting hole, and the rotating shaft (900) is sleeved in the mounting hole.

7. The testing apparatus according to claim 5, characterized in that, The testing device also includes a support member (1000), one end of which is connected to the side of the bearing member (800) away from the bracket (300), and the height of the support member (1000) is adjustable.

8. The testing apparatus according to claim 1, characterized in that, The testing device also includes an image acquisition mechanism (1100), which is connected to the base (100); The light-transmitting element (200) has an imaging area, and the image acquisition mechanism (1100) is used to acquire the image within the imaging area.

Images