A testing device, testing system and testing method for a projection device.

Abstract

This invention discloses a testing device, testing system, and testing method for a projection device. The testing device includes: a mobile chassis; a first adjustment module mounted on the mobile chassis, used to adjust a first tilt angle between two opposite sides of the mobile chassis in a first direction; a test box, including a box body and a light-transmitting component connected to the box body, the box body being rotatably connected to the mobile chassis, the light-transmitting component allowing external light to pass through and illuminate the projection device under test; and a second adjustment module mounted on the mobile chassis and connected to the test box, used to drive the test box to rotate, thereby adjusting a second tilt angle of the test box relative to the mobile chassis in a second direction. This device simulates sunlight backflow, thereby testing and verifying the effect of sunlight on the projection device under test. Compared to the testing method of actually mounting the projection device on a vehicle, this method offers certain convenience and helps save costs.

Description

Technical Field

[0001] This invention relates to the field of automotive testing technology, and in particular to a testing device, testing system, and testing method for a projection device. Background Technology

[0002] A projection device is a device that converts acquired information and projects it onto the windshield. A head-up display (HUD) is typically installed at the front of a vehicle, connecting to the car to acquire its information and generate corresponding images, which are then reflected and projected onto the windshield. HUDs usually operate under sunlight. Currently, before leaving the factory, HUDs are typically sampled and installed in vehicles for sunlight backflow testing to assess their resistance to such backflow. However, this method of testing in actual vehicles is costly, has limitations, and is inconvenient. Summary of the Invention

[0003] To address the aforementioned technical problems, embodiments of the present invention provide a testing device, a testing system, and a testing method for a projection device, which can perform simulated testing on the projection device.

[0004] The technical solutions adopted by the embodiments of the present invention to solve their technical problems are as follows:

[0005] A testing device for a projection apparatus includes a mobile chassis, a first adjustment module, a test chamber, and a second adjustment module. The first adjustment module is mounted on the mobile chassis and is used to adjust a first tilt angle between two opposite sides of the mobile chassis in a first direction. The test chamber includes a housing and a light-transmitting element connected to the housing. The housing is rotatably connected to the mobile chassis, and the housing is used to house the projection apparatus to be tested. The light-transmitting element allows external light to pass through and illuminate the projection apparatus to be tested. The second adjustment module is mounted on the mobile chassis and connected to the test chamber. The second adjustment module is used to drive the test chamber to rotate, thereby adjusting a second tilt angle of the test chamber relative to the mobile chassis in a second direction, wherein the first direction is perpendicular to the second direction.

[0006] Optionally, the mobile chassis includes a first side and a second side disposed opposite to each other in a first direction. The first adjustment module includes a first adjustment component and a second adjustment component. The first adjustment component is hinged to the first side, and the second adjustment component is hinged to the second side. Both the first adjustment component and the second adjustment component are used to adjust the first tilt angle of the mobile chassis in the first direction.

[0007] Optionally, the first adjustment assembly includes a first lead screw, a first conversion box, a first driving member, and a first support block. The first conversion box is hinged to the first side, the first lead screw is mounted on the first conversion box, the first driving member is rotatably connected to the first conversion box, and the first support block is mounted on the end of the first lead screw and used to abut against the support surface. When driven by the first driving member, the first conversion box will move closer to or further away from the support surface along the first lead screw to adjust the ground clearance of the first side.

[0008] And / or, the second adjustment assembly includes a second lead screw, a second conversion box, a second drive member, and a second support block. The second conversion box is hinged to the second side, the second lead screw is mounted on the second conversion box, the second drive member is rotatably connected to the second conversion box, and the second support block is mounted on the end of the second lead screw and used to abut against the support surface. When driven by the second drive member, the second conversion box will move closer to or further away from the support surface along the second lead screw to adjust the ground clearance of the second side.

[0009] Optionally, the first adjustment module further includes a locking member, which is hinged to the movable chassis and is used to lock the height position of the movable chassis.

[0010] Optionally, the testing equipment further includes a blocking component, one end of which is connected to the test box, and the other end of which is used to abut against the movable chassis or support surface when the second adjustment module drives the test box to rotate to a preset angle.

[0011] Optionally, the second adjustment module includes a drive shaft, a first rotating component, a second rotating component, a first transmission component, a power shaft, and a drive device. The drive shaft is connected to the test box. The first rotating component is mounted on the drive shaft, and the second rotating component is mounted on the power shaft. The first transmission component is disposed on the first rotating component and the second rotating component. The power shaft is rotatably mounted on the mobile chassis and is connected to the drive device. The drive device is used to drive the power shaft to rotate. Under the action of the first transmission component, the first rotating component and the second rotating component rotate synchronously to drive the drive shaft to rotate.

[0012] Optionally, the testing equipment further includes a temperature adjustment module and a temperature control module, both of which are installed in the chamber. The temperature adjustment module is used to adjust the testing temperature of the chamber, and the temperature control module is used to sense the testing temperature inside the testing chamber and to control the temperature adjustment module to adjust the testing temperature.

[0013] Optionally, the testing equipment further includes an alarm light, which is installed in the enclosure and connected to the temperature control module. The alarm light is used to issue an alarm based on the status of the testing enclosure.

[0014] Optionally, the light-transmitting element includes a simulated car windshield, and the projection device to be tested includes a head-up display.

[0015] The technical solutions adopted by the embodiments of the present invention to solve their technical problems are as follows:

[0016] A testing system includes the aforementioned testing equipment and a light source, wherein the light source illuminates the test chamber.

[0017] The technical solutions adopted by the embodiments of the present invention to solve their technical problems are as follows:

[0018] A testing method for a projection device, applied to the aforementioned testing system, wherein when the light source is natural sunlight, the testing method includes: resetting the first adjustment module and the second adjustment module; opening the housing and clamping the projection device to be tested inside the housing; closing the housing and setting preset test parameters; determining whether the light source is illuminating the test housing; if not, determining the conversion angle based on the sun's position; adjusting the first adjustment module and / or the second adjustment module based on the conversion angle and the current position of the test housing to adjust the position of the test housing so that the light source continuously illuminates the test housing; and stopping the test and observing whether the projection device to be tested is abnormal when the test time meets the preset test duration.

[0019] The technical solutions adopted by the embodiments of the present invention to solve their technical problems are as follows:

[0020] A testing method for a projection device, applied to the aforementioned testing system, wherein when the light source is a simulated light source, the testing method includes: resetting the first adjustment module and the second adjustment module; opening the housing and clamping the projection device to be tested into the housing; closing the housing and setting preset test parameters; determining the projection angle based on the sun's position at the time the projection device to be tested needs to be tested; determining the conversion angle based on the projection angle and the position of the light source; determining the tilt angle of the movable chassis adjusted by the first adjustment module in the first direction, and / or determining the angle by which the second adjustment module drives the test box to rotate relative to the movable chassis in the second direction, based on the conversion angle and the current position of the test box; adjusting the position of the test box through the first adjustment module and the second adjustment module to simulate sunlight projection; stopping the test and observing whether the projection device to be tested is abnormal when the test time meets the preset test duration.

[0021] The beneficial effects of this invention are as follows: The testing equipment for the projection device provided in this application includes a mobile chassis, a test box, a first adjustment module, and a second adjustment module. The first adjustment module is installed on the mobile chassis and is used to adjust the first tilt angle of the mobile chassis relative to each other in a first direction. The test box includes a box body and a light-transmitting component connected to the box body. The box body is rotatably connected to the mobile chassis and is used to house the projection device to be tested. The light-transmitting component allows external light to pass through and illuminate the projection device to be tested. The second adjustment module is installed on the mobile chassis and connected to the test box. The second adjustment module is used to drive the test box to rotate to adjust the second tilt angle of the test box relative to the mobile chassis in a second direction. The first direction and the second direction are perpendicular. This equipment simulates sunlight backflow to test the effect of sunlight on the projection device to be tested. Compared with the testing method of actually mounting the projection device on a vehicle, this method has certain convenience and is conducive to cost saving. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0023] Figure 1 This is a schematic diagram of the structure of a test device according to one embodiment of this application;

[0024] Figure 2 yes Figure 1 A diagram from another perspective;

[0025] Figure 3 yes Figure 1 Exploded view of the structure of the test chamber;

[0026] Figure 4 This is a schematic diagram of part of the structure of the testing equipment;

[0027] Figure 5 yes Figure 4 A schematic diagram of part of the structure;

[0028] Figure 6 This is a simplified schematic diagram of the test box of this application tilted in the first and second directions;

[0029] In the diagram: 1. Testing equipment; 2. Mobile chassis; 3. Test chamber; 4. First adjustment module; 5. Second adjustment module; 6. Temperature adjustment module; 7. Temperature control module; 8. Alarm light;

[0030] 201. First side; 202. Second side; 21. Base plate; 22. Caster wheel; 23. Handle; 24. Connecting assembly; 241. Protrusion; 242. Shaft; 243. First bearing seat; 25. Second bearing seat;

[0031] 31. Box body; 32. Light-transmitting component; 311. Box body; 312. Box door; 313. Clamping assembly; 314. Protrusion; 3111. First through hole; 3112. Second through hole; 3113. Thermal insulation substrate; 3131. Base plate; 3132. Connecting block; 3133. Connector;

[0032] 41. First adjusting component; 42. Second adjusting component; 43. Locking element;

[0033] 411. First lead screw; 412. First conversion box; 413. First driving component; 414. First support block; 421. Second lead screw; 422. Second conversion box; 423. Second driving component; 424. Second support block;

[0034] 51. Drive shaft; 52. First rotating component; 53. Second rotating component; 54. First transmission component; 55. Power shaft; 56. Drive device; 561. Speed ​​control box; 562. Adjustment handle; 563. Third rotating component; 564. Fourth rotating component; 565. Second transmission component. Detailed Implementation

[0035] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0037] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0038] like Figure 1 and Figure 2 As shown, one embodiment of this application provides a testing device 1 for a projection device, including a movable chassis 2, a test box 3, a first adjustment module 4, and a second adjustment module 5. The test box 3 is rotatably mounted on the movable chassis 2. The first adjustment module 4 is connected to the movable chassis 2, and the second adjustment module 5 is connected to the test box 3. The first adjustment module 4 is used to adjust the first tilt angle of the two opposite sides of the movable chassis 2 in the first direction X. The second adjustment module 5 is used to drive the test box 3 to rotate, so as to adjust the second tilt angle of the test box relative to the movable chassis 2 in the second direction Y. The first direction X is perpendicular to the second direction Y. The test box 3 includes a box body 31 and a light-transmitting element 32 connected to the box body 31. The box body 31 is rotatably connected to the movable chassis 2. The box body 31 is used to house the projection device to be tested, and the light-transmitting element 32 is used to allow external light to pass through and illuminate the projection device to be tested.

[0039] By adjusting the first tilt angle of the test box 3 in the first direction X and the second tilt angle in the second direction Y, the light from the light source outside the test equipment 1 is continuously irradiated onto the projection device under test, so as to test and verify the effect of sunlight on the projection device under test. Compared with the test method of actually installing the projection device on the vehicle, it has certain convenience and is conducive to saving costs.

[0040] For ease of description, the plane parallel to the support surface when the test box 3 is in its initial position is taken as the horizontal plane XY, and the direction between the first side 201 and the second side 202 of the movable chassis 2 is taken as the first direction X. Then the second direction Y is the direction in the horizontal plane XY that is perpendicular to the first direction X.

[0041] It should be understood that the projection device can be a variety of projection devices, including a head-up display, and is not limited to a specific projection device. Any projection device can be used with this test equipment 1. The light-transmitting element 32 can be a part made of a transparent material that allows light to pass through, and its specific shape is not limited. In this embodiment, the light-transmitting element 32 is a simulated car windshield.

[0042] In some embodiments, please refer again Figure 1The mobile chassis 2 includes a base plate 21 and several casters 22. The casters 22 are mounted on one end face of the base plate 21, and the test box 3 and the second adjustment module 5 are provided on the other end face of the base plate 21. Further, the mobile chassis 2 also includes a handle 23 connected to the base plate 21. Pushing or pulling the handle 23, driven by the casters 22, can move the base plate 21, thereby achieving the overall movement of the test equipment 1. In other embodiments, the mobile chassis 2 can also be electrically driven. Specifically, the mobile chassis 2 includes a chassis motor (not shown), a drive mechanism (not shown), and drive wheels (not shown). There are at least four drive wheels, and at least one drive wheel is provided at each of the four corners of the mobile chassis 2. The drive mechanism is connected to the drive wheels, and the chassis motor is connected to the drive mechanism. When the chassis motor rotates, the drive wheels rotate under the action of the drive mechanism, thereby achieving the overall movement of the test equipment 1. The drive mechanism adopts an existing structure and will not be described in detail here.

[0043] In some embodiments, such as Figure 3 As shown, the enclosure 31 includes a main body 311 and a door 312 rotatably connected to the main body 311. The main body 311 has a space for accommodating the projection device to be tested, and the door 312 is used to close the enclosure. The main body 311 has a first through hole 3111 and a second through hole 3112 on opposite sides, which can be used for airflow exchange. In this embodiment, the inner wall of the main body 311 is provided with a heat-insulating substrate 3113 for heat insulation.

[0044] Furthermore, the housing 31 is also provided with a clamping assembly 313, which is installed inside the housing body 311 and is used to clamp the projection device to be processed. In this embodiment, the clamping assembly 313 includes a base plate 3131, a connecting block 3132, and a connector 3133. The connecting block 3132 is detachably installed on the base plate 3131, and the connector 3133 is connected to the connecting block 3132 and is used to connect the projection device. The base plate 3131 has several connecting holes for mounting the connecting block 3132 to accommodate projection devices of different sizes. The connector 3133 can be a bolt or other components, depending on the specific requirements. It should be understood that the clamping assembly 313 is not limited to the structure mentioned in this embodiment, and the shape of the clamping assembly 313 in the accompanying drawings is only for illustrative purposes; other structures are also possible.

[0045] In some embodiments, please combine Figure 3 and Figure 5The housing 31 includes a protrusion 314 connected to the housing body 311, which is rotatably connected to the movable base plate 21. The movable base plate 21 is provided with a connecting assembly 24, which is connected to the protrusion 314. The protrusion 314 can rotate relative to the base plate 21 through the connecting assembly 24, thereby enabling the housing 31 to rotate relative to the movable chassis 2. In this embodiment, the connecting assembly 24 includes a protrusion 241 protruding relative to the base plate 21, a rotating shaft 242, and a first bearing seat 243. The first bearing seat 243 is mounted on the protrusion 241, and the rotating shaft 242 is mounted on the first bearing seat 243 and connected to the protrusion 314. There are two protrusions 241 and two first bearing seats 243, with one first bearing seat 243 mounted on one protrusion 241. The two protrusions 241 are spaced apart, and the two ends of the rotating shaft 242 are respectively connected to the two protrusions 314.

[0046] In some embodiments, please refer again Figure 1 and Figure 2 The first adjustment module 4 includes a first adjustment component 41 and a second adjustment component 42. The first adjustment component 41 is located on the first side 201, and the second adjustment component is located on the second side 202. The first adjustment component 41 is used to adjust the ground clearance of the first side 201 of the mobile chassis 2, and the second adjustment component is used to adjust the ground clearance of the second side 202 of the mobile chassis 2. Understandably, when the adjustment of the ground clearance of the first side 201 by the first adjustment component 41 is not equal to the adjustment of the ground clearance of the second side 202 by the second adjustment component 42, the mobile chassis 2 will tilt relative to the supporting surface, thereby adjusting the first tilt angle of the test box 3 in the first direction X. The supporting surface can be the ground or a plane supporting the entire test equipment 1, depending on the usage scenario.

[0047] In some embodiments, the first adjustment assembly 41 includes a first lead screw 411, a first conversion box 412, a first drive member 413, and a first support block 414. The first conversion box 412 is hinged to the first side 201, the first lead screw 411 is mounted on the first conversion box 412, the first drive member 413 is rotatably connected to the first conversion box 412, and the first support block 414 is mounted on the end of the first lead screw 411 and abuts against a support surface. When the first drive member 413 is driven, the first conversion box 412 will move closer to or further away from the support surface along the first lead screw 411 to adjust the ground clearance of the first side 201. The first drive member 413 can be a drive motor, a handle, or something else; no limitation is made here. In this embodiment, the first drive member 413 is a handle.

[0048] Understandably, the first conversion box 412 is used to convert the rotational motion of the first drive member 413 into linear motion moving along the axial direction of the first lead screw 411. In some embodiments, the first conversion box 412 includes a housing, a first bevel gear (not shown), a second bevel gear (not shown), a first bearing (not shown), and a second bearing (not shown). The first bevel gear and the second bevel gear are rotatably mounted in the housing, and their central axes are perpendicular. The first bevel gear is engaged with the first drive member 413. The first bearing is disposed between the housing and the handle. The second bevel gear is rotatably mounted on the first lead screw 411 through the second bearing, and the inner ring of the second bevel gear is provided with a thread for engaging with the first lead screw 411. When the first drive member 413 is rocked, the first bevel gear rotates accordingly and drives the second bevel gear to rotate. Under the action of the first lead screw 411, the first conversion box 412 will drive the first side 201 of the movable chassis 2 to rise or fall relative to the support surface. Of course, the first conversion box 412 can also adopt other structures, as long as it can realize that when the user shakes the first driving component 413, the first conversion box 412 drives the first side 201 of the mobile chassis 2 to rise or fall relative to the support surface.

[0049] It should be understood that the first adjustment component 41 can also employ other mechanisms to adjust the ground clearance of the first side 201 of the mobile chassis 2. In some embodiments, the first adjustment component 41 includes a linear stepper motor (not shown) and an adapter (not shown). One end of the adapter is connected to the output shaft of the linear stepper motor, and the other end of the adapter is hinged to the first side 201 of the mobile chassis 2. Thus, driving the output shaft of the linear stepper motor to extend or retract can move the first side 201 of the mobile chassis 2 closer to or further away from the support surface. In some embodiments, the first adjustment component 41 includes an adapter and a telescopic cylinder. The telescopic end of the telescopic cylinder is connected to the adapter, and the adapter is hinged to the first side 201 of the mobile chassis 2.

[0050] In some embodiments, the second adjustment assembly 42 includes a second lead screw 421, a second conversion box 422, a second drive member 423, and a second support block 424. The second conversion box 422 is hinged to the second side 202. The second lead screw 421 is mounted on the second conversion box 422. The second drive member 423 is rotatably connected to the second conversion box 422. The second support block 424 is mounted on the end of the second lead screw 421 and abuts against the support surface. When the second drive member 423 is rocked, the second conversion box 422 will move closer to or away from the support surface along the second lead screw 421 to adjust the ground clearance of the second side 202. The structure of the second conversion box 422 can refer to the structure of the first conversion box 412 described above, and will not be repeated here. The second drive member 423 can be a drive motor, a handle, or other components, and is not limited here. In this embodiment, the second drive member 423 is a handle.

[0051] It should be understood that the second adjustment assembly 42 can also be other structures, such as a combination of a cylinder and an adapter, the adapter being connected to the movable chassis 2 and hinged to the telescopic end of the cylinder. For example, the second adjustment assembly 42 includes a linear stepper motor (not shown) and an adapter (not shown), one end of which is connected to the output shaft of the linear stepper motor, and the other end of which is hinged to the second side 202 of the movable chassis 2.

[0052] In some embodiments, the first adjustment module 4 further includes a locking member 43, which is hinged to the movable chassis 2 and used to lock the height position of the movable chassis 2. Understandably, when the movable chassis 2 is adjusted to the required test height position using the first adjustment component 41 and the second adjustment component 42, it is necessary to lock the current height position of the movable chassis 2 to prevent it from descending under gravity. In this embodiment, the locking member 43 adopts the existing structure of a monkey climbing pole, which will not be described in detail here.

[0053] Understandably, when the mobile chassis 2 is moving, the first adjustment module 4 needs to maintain a distance from the support surface. Only when the mobile chassis 2 moves to the required test scenario can the first adjustment module 4 come into contact with the support surface, thus avoiding the first adjustment module 4 from hindering the movement of the mobile chassis 2.

[0054] In some embodiments, please combine Figure 4 and Figure 5 The second adjustment module 5 includes a drive shaft 51, a first rotating component 52, a second rotating component 53, a first transmission component 54, a power shaft 55, and a drive device 56. The drive shaft 51 is connected to the test box 3. The first rotating component 52 is mounted on the drive shaft 51, the second rotating component 53 is mounted on the power shaft 55, and the first transmission component 54 is disposed on the first rotating component 52 and the second rotating component 53. The power shaft 55 is rotatably mounted on the mobile chassis 2 and is connected to the drive device 56. The drive device 56 is used to drive the power shaft 55 to rotate. Under the action of the first transmission component 54, the first rotating component 52 and the second rotating component 53 rotate synchronously to drive the drive shaft 51 to rotate, thereby driving the test box 3 to rotate, so as to adjust the second tilt angle of the test box 3 relative to the mobile chassis 2 in the second direction Y. In this embodiment, the first rotating component 52 is a large sprocket, the second rotating component 53 is a small sprocket, and the first transmission component 54 is a chain. Of course, the first rotating member 52 and the second rotating member 53 can be other types, as long as they can enable the drive shaft 51 to rotate. For example, the first rotating member 52 can be a large gear, the second rotating member 53 can be a small gear, and the first transmission member 54 can be a flexible rack that meshes with the small gear and the large gear. Here, the first direction X refers to the direction from the first side 201 to the second side 202.

[0055] In some embodiments, the mobile chassis 2 includes two spaced-apart second bearing seats 25, and the power shaft 55 is rotatably mounted on the two second bearing seats 25. Of course, the power shaft 55 can also be rotatably mounted on the mobile chassis 2 in other ways, and is not limited to the second bearing seats 25 mentioned herein.

[0056] The drive device 56 can be a rotating motor, or any other device, as long as it can drive the power shaft 55 to rotate. In some embodiments, the drive device 56 includes a speed control box 561, an adjustment handle 562, a third rotating member 563, a fourth rotating member 564, and a second transmission member 565. The speed control box 561 is mounted on the mobile chassis 2, the adjustment handle 562 is connected to the speed control box 561, the third rotating member 563 is mounted on the output shaft of the speed control box 561, the fourth rotating member 564 is mounted on the power shaft 55, and the second transmission member 565 is mounted on the third rotating member 563 and the fourth rotating member 564. When the adjustment handle 562 is turned, the output shaft of the speed control box 561 drives the third rotating member 563 to rotate. Under the action of the second transmission member 565, the fourth rotating member 564 drives the power shaft 55 to rotate, thereby realizing the rotation of the drive shaft 51.

[0057] To better understand the adjustment functions of the first adjustment module 4 and the second adjustment module 5, please refer to... Figure 6 To understand this, lines AA and BB are the two central axes of the test box 3 in the first direction X and the second direction Y, respectively. When the first adjustment module 4 drives the first side 201 of the moving chassis 2 to be lower than the second side 202, the line A'A' of the test box 3 is higher on one side and lower on the other side compared to the line AA in the initial position, and the angle of deflection of line A'A' relative to line AA is the first tilt angle α. When the second adjustment module 5 drives the test box 3 to rotate and tilt to one side along the second direction Y, the angle of deflection of line B'B' relative to line BB is the second tilt angle β.

[0058] In some embodiments, the test equipment 1 further includes a temperature regulation module 6, which is installed in the housing 31 and is used to regulate the test temperature of the housing 31. Understandably, the temperature regulation module 6 can regulate the ambient air temperature around the test equipment 1, and under the action of the first through-hole 3111 and the second through-hole 3112, can provide a suitable test temperature for the internal environment of the test chamber 3.

[0059] In some embodiments, the testing device 1 further includes a temperature control module 7, which is installed in the housing 31. The temperature control module 7 is used to sense the test temperature inside the test chamber 3 and to control the temperature adjustment module 6 to adjust the test temperature. In this embodiment, the temperature control module 7 includes a control board and a temperature sensor connected to the control board. The temperature sensor is located in the test chamber 3 and is used to detect the temperature of the test chamber 3. The control board is used to adjust the operating temperature of the temperature adjustment module 6. When the temperature sensor detects that the test temperature of the test chamber 3 is lower than the preset experimental temperature, the control board controls the temperature adjustment module 6 to heat up to increase the temperature of the test chamber 3.

[0060] In some embodiments, please refer again Figure 1 The test equipment 1 also includes an alarm light 8, which is installed in the housing 31 and connected to the temperature control module 7. The alarm light 8 is used to sound an alarm according to the status of the test housing 3.

[0061] For example, when the door 312 of test chamber 3 is opened, test chamber 3 is in a dangerous state, and alarm light 8 illuminates a specific color (such as red) to warn that the experiment should not be conducted at this time. As another example, when the test time has reached the preset duration, test chamber 3 is in a completed state, and alarm light 8 illuminates another specific color (such as yellow) to warn that the test is complete. Furthermore, if light shines on the projection device and causes it to burn or catch fire, the temperature of test chamber 3 exceeds the preset test temperature, and test chamber 3 is in an abnormal state, with the alarm light constantly illuminated. Finally, if light shines on the projection device and causes it to overheat, alarm light 8 may flash as a warning. The alarm method of alarm light 8 is not limited, as long as it can remind the user and convey status information.

[0062] In some embodiments, the testing device 1 further includes a blocking member (not shown), one end of which is connected to the test chamber 3, and the other end of which is used to abut against the movable chassis 2 or the support surface when the second adjustment module 5 drives the test chamber 3 to rotate to a preset angle. Thus, under the action of the blocking member, the test chamber 3 can be prevented from rotating excessively under the drive of the second adjustment module 5, causing it to tip over to one side, thereby reducing the risk of damage to the test chamber 3. In this embodiment, blocking members are provided on both opposite sides of the test chamber 3 in the second direction Y. The blocking members can use a rod-shaped structure, and the rod-shaped structure is inclinedly connected to the test chamber 3 to further achieve the blocking and limiting effect.

[0063] The testing device 1 for the projection device provided in this application embodiment includes a movable chassis 2, a test box 3, a first adjustment module 4, and a second adjustment module 5. The first adjustment module 4 is installed on the movable chassis 2 and is used to adjust the first tilt angle of the movable chassis 2 relative to each other on the first direction X. The test box 3 includes a box body 31 and a light-transmitting element 32 connected to the box body 31. The box body 31 is rotatably connected to the movable chassis 2. The box body 31 is used to house the projection device to be tested, and the light-transmitting element 32 is used to allow external light to pass through to illuminate the projection device to be tested. The second adjustment module 5 is installed on the movable chassis 2 and connected to the test box 3. The second adjustment module 5 is used to drive the test box 3 to rotate so as to adjust the second tilt angle of the test box 3 relative to the movable chassis 2 on the second direction Y. The first direction X is perpendicular to the second direction Y. When conducting a solar backflow test using the aforementioned test equipment 1, the tilt angles of the test box 3 in the first direction X and the second direction Y are adjusted so that the light source continuously illuminates the projection device under test, thereby testing and verifying the projection device's ability to resist solar backflow. Compared to the test method of actually installing the projection device on a vehicle, this method is more convenient and helps to save costs.

[0064] Another embodiment of this application provides a testing system including a testing device 1 with a projection device as described in the above embodiment and a light source, wherein the light source illuminates the testing box 3.

[0065] The light source includes natural sunlight or a simulated light source, wherein the simulated light source is used to simulate the sun.

[0066] Another embodiment of this application provides a testing method for a projection device, applied to the testing equipment in the above embodiments. When the light source is natural sunlight, the testing method includes:

[0067] Step S201: Reset the first adjustment module 4 and the second adjustment module 5;

[0068] Step S202: Open the enclosure 31 and clamp the projection device to be tested inside the enclosure 31, close the enclosure 31 and set the preset test parameters;

[0069] The preset test parameters include the preset test temperature and the preset test duration;

[0070] Step S203: Determine whether the light source is shining light into the test chamber 3;

[0071] Understandably, a light detection sensor, a light intensity detection sensor, etc., can be installed inside the test chamber 3 to detect whether the light from the light source shines on the test chamber 3;

[0072] Step S204: If not, determine the conversion angle based on the sun's position;

[0073] Understandably, since the position of the sun changes at different times, in order to ensure that the light source can continuously illuminate the test chamber 3, it is necessary to adjust the first tilt angle and the second tilt angle of the test chamber 3. Changing the angle means adjusting the adjustment angle of the test chamber 3 through the first adjustment module 4 and the second adjustment module 5.

[0074] Step S205: Adjust the first adjustment module 4 and / or the second adjustment module 5 according to the conversion angle and the current position of the test box 3 to adjust the position of the test box 3 so that the light source continuously shines light into the test box 3;

[0075] Specifically, based on the conversion angle and the current position of the test box 3, the first adjustment module 4 adjusts the first tilt angle of the mobile chassis in the first direction X, and the second adjustment module 5 drives the test box 3 to rotate relative to the mobile chassis 2 in the second direction by a second tilt angle.

[0076] Step S206: When the test time meets the preset test duration, stop the test and observe whether the projection device under test is abnormal.

[0077] Abnormal phenomena of projection devices include scorching or fire on the surface of the projection device.

[0078] Furthermore, between steps 202 and 203, step S207 is also included: adjusting the test temperature according to preset test parameters, the temperature adjustment module 6 of the test device 1 adjusts the test temperature in the test chamber 3 to the preset test temperature and starts the test;

[0079] Furthermore, the testing methods also include:

[0080] Step S208: Provide a display device and connect the display device to the test box 3.

[0081] The display device can be a laptop, an external monitor, or even a computer. By observing changes in environmental parameters within test chamber 3 on the display device, the current experimental status can be determined.

[0082] By using the testing equipment in the above embodiments to perform the above steps, using natural sunlight as the light source, and using this testing device to adjust the position of the test box, it is possible to track the continuous illumination of the projection device under test by the sun, and simulate the working condition of the projection device during the actual vehicle installation process. Compared with the method of actually installing the projection device in the vehicle for testing, the above method has certain convenience and can also reduce testing costs.

[0083] Another embodiment of this application provides a projection loading test method, applied to the test equipment in the above embodiments. When the light source is a simulated light source, the test method includes:

[0084] Step S301: The first adjustment module 4 and the second adjustment module 5 are reset;

[0085] Step S302: Open the enclosure 31 and clamp the projection device to be tested inside the enclosure 31; close the enclosure 31 and set the preset test parameters, including the preset test temperature and the preset test duration;

[0086] Step S303: Determine the projection angle based on the sun's position at the time when the projection device to be tested needs to be tested;

[0087] Understandably, since the sun's position is constantly changing, in order to ensure the accuracy of the test verification, the sun's position at the current test moment is determined based on the preset sun position model, that is, the sun's projection angle at this moment is obtained.

[0088] Step S304: Determine the conversion angle based on the projection angle and the position of the light source;

[0089] Understandably, the angle conversion means that when the position of the simulated light source is fixed, if the projection device needs to be simulated to be illuminated by sunlight at a certain moment, the position of the test box 3 needs to be adjusted by first adjustment module 4 and second adjustment module 5. The first tilt angle and second tilt angle need to be rotated and adjusted to simulate the angle of sunlight incidence and ensure the accuracy of the test verification.

[0090] Step S305: Based on the conversion angle and the current position of the test box, determine the tilt angle of the mobile chassis adjusted by the first adjustment module 4 in the first direction, and determine the angle by which the test box 3 is driven to rotate relative to the mobile chassis 2 by the second adjustment module 5 in the second direction;

[0091] Step S306: Adjust the position of the test box 3 using the first adjustment module 4 and the second adjustment module 5 to simulate sunlight projection;

[0092] Step S307: When the test time meets the preset test duration, stop the test and observe whether the projection device under test is abnormal.

[0093] Abnormal phenomena of projection devices include scorching or fire on the surface of the projection device.

[0094] Furthermore, between steps 302 and 303, step S308 is also included: adjusting the test temperature according to preset test parameters, the temperature adjustment module 6 of the test device 1 adjusts the test temperature in the test chamber 3 to the preset test temperature and starts the test;

[0095] Furthermore, the testing methods also include:

[0096] Step S309: Provide a display device and connect the display device to the test chamber 3.

[0097] The display device can be a laptop, an external monitor, or even a computer. By observing changes in environmental parameters within test chamber 3 on the display device, the current experimental status can be determined.

[0098] By using the testing equipment in the above embodiments to perform the above steps, simulating sunlight with a simulated light source, and adjusting the position of the test box using this testing device, the working conditions of the projection device during actual vehicle installation can be simulated. For example, the angle of sunlight and the ambient temperature of the projection device during vehicle installation and use. Compared with the method of actually installing the projection device in a vehicle for testing, the above method is not limited by the weather conditions and the time of the experiment, which is more convenient and can also reduce the testing cost.

[0099] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A testing device for projection apparatus, used for testing head-up displays, characterized in that, include: Mobile chassis; A first adjustment module is installed on the mobile chassis. The first adjustment module is used to adjust the first tilt angle of the two opposite sides of the mobile chassis in a first direction. A test chamber includes a chamber body and a light-transmitting element connected to the chamber body. The chamber body is rotatably connected to the movable chassis. The chamber body is used to house a projection device to be tested. The light-transmitting element is used to allow external light to pass through and illuminate the projection device to be tested. The second adjustment module is installed on the mobile chassis and connected to the test box. The second adjustment module is used to drive the test box to rotate so as to adjust the second tilt angle of the test box relative to the mobile chassis in a second direction. The first direction is perpendicular to the second direction. The position of the test box is adjusted by adjusting the first adjustment module and the second adjustment module to simulate the incident angle of solar light or natural sunlight.

2. The testing equipment according to claim 1, characterized in that, The mobile chassis includes a first side and a second side disposed opposite to each other in a first direction. The first adjustment module includes a first adjustment component and a second adjustment component. The first adjustment component is hinged to the first side, and the second adjustment component is hinged to the second side. Both the first adjustment component and the second adjustment component are used to adjust the first tilt angle of the mobile chassis in the first direction.

3. The testing equipment according to claim 2, characterized in that, The first adjustment assembly includes a first lead screw, a first conversion box, a first driving member, and a first support block. The first conversion box is hinged to the first side, the first lead screw is mounted on the first conversion box, the first driving member is rotatably connected to the first conversion box, and the first support block is mounted on the end of the first lead screw and serves to abut against a support surface. When driven by the first driving member, the first conversion box will move closer to or further away from the support surface along the first lead screw to adjust the ground clearance of the first side; And / or, the second adjusting assembly includes a second lead screw, a second conversion box, a second driving member, and a second support block. The second conversion box is hinged to the second side, the second lead screw is mounted on the second conversion box, the second driving member is rotatably connected to the second conversion box, and the second support block is mounted on the end of the second lead screw and serves to abut against a support surface. When driven by the second drive member, the second conversion box will move closer to or away from the support surface along the second lead screw to adjust the ground clearance of the second side.

4. The testing equipment according to claim 2, characterized in that, The first adjustment module further includes a locking component, which is hinged to the movable chassis and is used to lock the height position of the movable chassis.

5. The testing equipment according to claim 1, characterized in that, It also includes a blocking component, one end of which is connected to the test box, and the other end of which is used to abut against the mobile chassis or support surface when the second adjustment module drives the test box to rotate to a preset angle.

6. The testing equipment according to claim 1, characterized in that, The second adjustment module includes a drive shaft, a first rotating component, a second rotating component, a first transmission component, a power shaft, and a drive device. The drive shaft is connected to the test box. The first rotating component is mounted on the drive shaft. The second rotating component is mounted on the power shaft. The first transmission component is disposed on the first rotating component and the second rotating component. The power shaft is rotatably mounted on the mobile chassis and is connected to the drive device. The drive device is used to drive the power shaft to rotate. Under the action of the first transmission member, the first rotating member and the second rotating member rotate synchronously to drive the drive shaft to rotate.

7. The testing equipment according to claim 1, characterized in that, It also includes a temperature regulation module and a temperature control module, both of which are installed in the enclosure. The temperature regulation module is used to adjust the test temperature of the enclosure. The temperature control module is used to sense the test temperature inside the test chamber and to control the temperature adjustment module to adjust the test temperature.

8. The testing equipment according to claim 7, characterized in that, It also includes an alarm light, which is installed in the enclosure and connected to the temperature control module. The alarm light is used to sound an alarm based on the status of the test chamber.

9. The testing equipment according to claim 1, characterized in that, The light-transmitting element includes a simulated car windshield, and the projection device to be tested includes a head-up display.

10. A testing system, characterized in that, It includes the testing equipment as described in any one of claims 1-9 and a light source, wherein the light source illuminates the testing chamber.

11. A testing method for a projection device, applied to the testing system as described in claim 10, characterized in that, When the light source is natural sunlight, the test method includes: Reset the first adjustment module and the second adjustment module; Open the enclosure and clamp the projection device to be tested inside the enclosure, close the enclosure and set the preset test parameters; Determine whether the light source is shining light into the test chamber; If not, determine the angle of conversion based on the sun's position; Based on the conversion angle and the current position of the test box, adjust the first adjustment module and / or the second adjustment module to adjust the position of the test box so that the light source continuously shines light into the test box; When the test time meets the preset test duration, stop the test and observe whether the projection device under test is abnormal.

12. A testing method for a projection device, applied to the testing system as described in claim 10, characterized in that, When the light source is a simulated light source, the test method includes: Reset the first adjustment module and the second adjustment module; Open the enclosure and clamp the projection device to be tested inside the enclosure, close the enclosure and set the preset test parameters; Determine the projection angle based on the sun's position at the time when the projection device to be tested is to be tested; The conversion angle is determined based on the projection angle and the position of the light source; Based on the conversion angle and the current position of the test box, the tilt angle of the mobile chassis adjusted by the first adjustment module in the first direction is determined, and / or the angle by which the test box is driven to rotate relative to the mobile chassis by the second adjustment module in the second direction is determined. The position of the test box is adjusted by the first adjustment module and the second adjustment module to simulate sunlight projection. When the test time meets the preset test duration, stop the test and observe whether the projection device under test is abnormal.

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