AR module semi-automatic test equipment and method

Abstract

The invention relates to the technical field of AR, and discloses an AR module semi-automatic test device and method.The supporting structure comprises a horizontally-arranged first bottom plate and a second bottom plate vertically connected to one end of the first bottom plate; the first electric translation table is arranged on the first bottom plate, and a first sliding table sliding in the first direction is driven on the first electric translation table; the AR module fixing module is arranged on the first sliding table, and the AR module fixing module is used for detachably connecting an AR module to be tested; the second electric translation table is arranged on the second bottom plate, and a second sliding table sliding in the second direction is driven on the second electric translation table; the test system is arranged on the second sliding table through a four-axis adjusting platform; the controller is used for coordinately controlling the movement of the first sliding table and the second sliding table and the image acquisition and analysis of the test system, the consistency, accuracy and quickness of the AR modules to be tested from the feeding position to the test position of the same model can be ensured, and the high-efficiency detection of the AR modules is realized.

Description

Technical Field

[0001] This invention relates to the field of AR technology, and in particular to a semi-automatic testing device and method for AR modules. Background Technology

[0002] Augmented Reality (AR) is a technology that cleverly integrates virtual information with the real world. It widely utilizes multimedia, 3D modeling, real-time tracking and registration, intelligent interaction, and sensing technologies to simulate and apply computer-generated text, images, 3D models, music, videos, and other virtual information to the real world. The two types of information complement each other, thus "enhancing" the real world. With the continuous development of AR technology, it has shown broad application prospects. Currently, it has been applied in many fields such as digital entertainment, cultural education, medical diagnosis and treatment, industrial production, urban operation and maintenance, and e-commerce.

[0003] AR modules present virtual information to the human eye, which simultaneously collects information from the real world. After processing by the brain, the virtual information and the real world are merged to achieve augmented reality. In this process, the human eye's perception of the image quality presented by the AR module is subjective. Differences in the environment and the experience object affect the subjective evaluation of the image quality, which has a negative impact on the development of AR. Objective evaluation of AR modules is extremely important, and AR module testing is an important part of objective evaluation.

[0004] Currently, AR module testing is mainly done manually, which is relatively slow. Therefore, there is an urgent need for a semi-automated testing device and method for AR modules. Summary of the Invention

[0005] The purpose of this invention is to provide a semi-automatic testing device and method for AR modules, aiming to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a semi-automatic testing device for AR modules, comprising:

[0007] The supporting structure includes a horizontally placed first base plate and a second base plate vertically connected to one end of the first base plate;

[0008] A first electric translation stage is disposed on the first base plate, and a first slide table is driven on the first electric translation stage to slide along a first direction, the first direction being parallel to the first base plate;

[0009] An AR module fixing module is mounted on the first slide, and the AR module fixing module is used to detachably connect the AR module under test.

[0010] A second electric translation stage is arranged on the second bottom plate, and a second sliding table that slides in a second direction is driven on the second electric translation stage, wherein the second direction is parallel to the second bottom plate.

[0011] A test system is arranged on the second sliding table through a four-axis adjustment platform.

[0012] A controller is configured to coordinately control the movement of the first sliding table and the second sliding table, and the image acquisition and analysis of the test system.

[0013] Optionally, the AR module fixing module comprises:

[0014] A fourth bottom plate is arranged on the first sliding table, and the fourth bottom plate is provided with a first pressing block and a second pressing block.

[0015] A fixing clamp is detachably connected to the fourth bottom plate through the first pressing block and the second pressing block, and the fixing clamp is configured to detachably connect the to-be-tested AR module.

[0016] Optionally, the fixing clamp comprises:

[0017] A bearing plate is detachably connected to the fourth bottom plate through the first pressing block and the second pressing block, and the bearing plate is provided with a third pressing block, a fourth pressing block and a clamping device.

[0018] The clamping device cooperates with the third pressing block and the fourth pressing block to realize quick clamping and releasing of the to-be-tested AR module.

[0019] Optionally, the first electric translation stage comprises:

[0020] A first linear guide rail is arranged on the first bottom plate, and the first sliding table is slidingly fitted on the first linear guide rail.

[0021] A first motor is configured to drive the first sliding table to slide along the first linear guide rail.

[0022] A first limiter is arranged at one end of the first linear guide rail.

[0023] Optionally, the second electric translation stage comprises:

[0024] A second linear guide rail is arranged on the second bottom plate, and the second sliding table is slidingly fitted on the second linear guide rail.

[0025] A second motor is configured to drive the second sliding table to slide along the second linear guide rail.

[0026] A second limiter is arranged at one end of the second linear guide rail.

[0027] Optionally, the four-axis adjustment platform comprises:

[0028] A second horizontal displacement adjustment platform is arranged on the second sliding table through a connecting plate.

[0029] A first horizontal displacement adjustment platform is arranged at the movable end of the second horizontal displacement adjustment platform.

[0030] A second angle inclination adjustment platform is arranged at the movable end of the first horizontal displacement adjustment platform.

[0031] A first angle inclination adjustment platform is arranged at the movable end of the second angle inclination adjustment platform, and the movable end of the first angle inclination adjustment platform is detachably connected with the test system through a supporting plate.

[0032] The first angle inclination adjustment platform and the second angle inclination adjustment platform are used to adjust the pitch angle of the test system, and the first horizontal displacement adjustment platform and the second horizontal displacement adjustment platform are used to adjust the center alignment position of the test system and the AR module to be tested.

[0033] Optionally, a third bottom plate is connected between the first bottom plate and the second bottom plate, and a first triangular side plate and a second triangular side plate are connected between the third bottom plate and the second bottom plate.

[0034] Optionally, the test system comprises a camera and a lens.

[0035] The application further provides an AR module semi-automatic test method, which comprises the following steps:

[0036] Calibrating the focal length of the test system.

[0037] Fixing the AR module to be tested in the AR module fixing module.

[0038] Driving the first electric translation table by the controller to move the AR module to be tested to a test position.

[0039] Driving the second electric translation table by the controller to move the test system to a test position.

[0040] Adjusting the test system by the four-axis adjustment platform to align the test system with the center eye position of the AR module to be tested.

[0041] Capturing the projection image of the AR module to be tested by the test system, and outputting the optical performance parameters through software analysis.

[0042] Optionally, the optical performance parameters output through software analysis comprise:

[0043] The debugging parameters of the to-be-tested AR module of the current model are saved as the reference setting of the to-be-tested AR module of the same model in subsequent tests;

[0044] The multi-image sequence projection and data acquisition are automatically performed.

[0045] The following technical effects are disclosed in the present application:

[0046] The present application can ensure the consistency, accuracy and speed of the AR module from the loading position to the testing position, and realize the efficient detection of the AR module through the cooperation of the controller, the first electric translation stage, the second electric translation stage, the AR module fixing module and the testing system.

[0047] The present application can realize the rapid loading and unloading of the AR module testing of the same model and the rapid replacement and debugging of the AR module testing of different models through the detachable fixing jig, which greatly improves the testing efficiency.

[0048] The first electric translation stage, the second electric translation stage, the camera and the lens in the testing system can be selected and customized according to the actual use requirements, so that the application scenarios are more extensive. BRIEF DESCRIPTION OF DRAWINGS

[0049] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the present application illustrated in the drawings and their descriptions are used to explain the present application and do not limit the present application. In the drawings:

[0050] Figure 1 It is a front view of the overall structure of the present application;

[0051] Figure 2 It is a rear view of the overall structure of the present application;

[0052] Figure 3 It is a structural schematic diagram of the first electric translation stage and the second electric translation stage of the present application;

[0053] Figure 4 It is a structural cross-sectional view of the first electric translation stage and the second electric translation stage of the present application;

[0054] Figure 5 It is a structural schematic diagram of the fixing jig of the present application;

[0055] Figure 6 It is the first test diagram of the present application during testing;

[0056] Figure 7 It is the second test diagram of the present application during testing;

[0057] Figure 8 It is the second test diagram of the present application during testing.

[0058] In the figure: 1, the first bottom plate; 2, the second bottom plate; 3, the third bottom plate; 4, the first triangular side plate; 5, the second triangular side plate; 6, the AR module fixing module; 61, the fourth bottom plate; 62, the first pressing block; 63, the second pressing block; 64, the fixed clamp; 641, the bearing plate; 642, the third pressing block; 643, the fourth pressing block; 644, the gripper; 7, the controller; 8, the first electric translation stage; 81, the first motor; 82, the first linear guide rail; 83, the first sliding table; 84, the first limiter; 9, the second electric translation stage; 91, the second motor; 92, the second linear guide rail; 93, the second sliding table; 94, the second limiter; 10, the connecting plate; 11, the four-axis adjustment platform; 111, the first angle inclination adjustment platform; 112, the second angle inclination adjustment platform; 113, the first horizontal displacement adjustment platform; 114, the second horizontal displacement adjustment platform; 115, the support plate; 12, the test system; 121, the camera; 122, the lens. DETAILED DESCRIPTION

[0059] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0060] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0061] Reference Figures 1 to 8 The present application provides an AR module semi-automatic test equipment, comprising:

[0062] The support structure comprises a horizontally placed first bottom plate 1 and a second bottom plate 2 vertically connected to one end of the first bottom plate 1;

[0063] The first electric translation stage 8 is arranged on the first bottom plate 1, and a first sliding table 83 driven to slide in a first direction is arranged on the first electric translation stage 8, wherein the first direction is parallel to the first bottom plate 1;

[0064] The AR module fixing module 6 is arranged on the first sliding table 83, and the AR module fixing module 6 is used for detachably connecting the AR module to be tested;

[0065] The second electric translation stage 9 is arranged on the second bottom plate 2, and a second sliding table 93 driven to slide in a second direction is arranged on the second electric translation stage 9, wherein the second direction is parallel to the second bottom plate 2;

[0066] The test system 12 is arranged on the second sliding table 93 through the four-axis adjusting platform 11;

[0067] The controller 7 is configured to coordinate the movement of the first sliding table 83 and the second sliding table 93, and the image acquisition and analysis of the test system 12.

[0068] By fixing the AR module to be tested on the AR module fixing module 6, the controller 7 is controlled by the software setting program to move the AR module to be tested to the fixed position by the first electric translation stage 8, and the test system 12 is moved to the fixed position by the second electric translation stage 9. The test system 12 is aligned with the center point of the AR module to be tested by the four-axis adjusting platform 11, and the parameters are recorded and saved by the software in the controller 7 as the reference position for subsequent testing of the AR module product. The software is automatically tested, and the AR module to be tested projects the picture in sequence. The test system 12 collects the picture, and the collected picture is processed and analyzed to output the test data. Then, the AR module fixing module 6 is moved to the initial position by the first electric translation stage 8, and the next AR module product to be tested is replaced for semi-automatic testing. The AR test software scheme is based on the camera development program, collects the identification picture information with different characteristics, identifies the feature points of the identification picture, and processes the coordinate data. At the same time, the fixed logic algorithm is calculated and the data is output. The scheme includes picture collection, image processing, data storage and other functions, and can quickly and accurately evaluate the optical indicators of the AR module.

[0069] The AR module to be tested is horizontally transported by the first electric translation stage 8, and the test system 12 is vertically transported by the second electric translation stage 9, so as to realize accurate positioning in three-dimensional space and solve the problem of poor test consistency caused by manual placement.

[0070] In an embodiment of the present application, the AR module fixing module 6 comprises:

[0071] The fourth bottom plate 61 is arranged on the first sliding table 83, and the first pressing block 62 and the second pressing block 63 are arranged on the fourth bottom plate 61;

[0072] The fixing clamp 64 is detachably connected with the fourth bottom plate 61 through the first pressing block 62 and the second pressing block 63, and the fixing clamp 64 is used for detachably connecting the AR module to be tested.

[0073] The first pressing block 62 and the second pressing block 63 facilitate the disassembly and assembly of the fixing clamp 64, and the detachable fixing clamp has different shapes according to different models of AR modules.

[0074] In an embodiment of the present application, the fixing clamp 64 comprises:

[0075] The bearing plate 641 is detachably connected to the fourth bottom plate 61 through the first pressing block 62 and the second pressing block 63, and the bearing plate 641 is provided with a third pressing block 642, a fourth pressing block 643 and a clamp 644;

[0076] The clamp 644 cooperates with the third pressing block 642 and the fourth pressing block 643 to realize quick clamping and releasing of the AR module to be tested.

[0077] The third pressing block 642, the fourth pressing block 643 and the clamp 644 form three-point positioning, so that the AR module to be tested is prevented from being deformed under stress, and the authenticity of test data is ensured.

[0078] In an embodiment of the present application, the first electric translation stage 8 comprises:

[0079] The first linear guide rail 82 is arranged on the first bottom plate 1, and the first sliding table 83 is slidingly fitted on the first linear guide rail 82.

[0080] The first motor 81 is used to drive the first sliding table 83 to slide along the first linear guide rail 82.

[0081] The first limiter 84 is arranged at one end of the first linear guide rail 82.

[0082] The first motor 81 drives the first sliding table 83 to slide along the first linear guide rail 82 to realize displacement adjustment of the AR module to be tested, and the first limiter 84 and the first linear guide rail 82 form physical hard limiting to avoid lens 122 collision accidents caused by overstroke of the first motor.

[0083] The first linear guide rail 82 contains a ball screw, a ball nut and a guide rod and other screw transmission structures, the ball nut is connected with the first sliding table 83, the ball screw is driven to rotate by the first motor 81, and the first sliding table 83 is driven to translate by cooperation of the ball screw and the ball nut.

[0084] In an embodiment of the present application, the second electric translation stage 9 comprises:

[0085] The second linear guide rail 92 is arranged on the second bottom plate 2, and the second sliding table 93 is slidingly fitted on the second linear guide rail 92.

[0086] The second motor 91 is used to drive the second sliding table 93 to slide along the second linear guide rail 92.

[0087] The second limiter 94 is arranged at one end of the second linear guide rail 92.

[0088] The second electric translation stage 9 has the same principle as the first electric translation stage 8, and will not be described here.

[0089] In an embodiment of the present application, the four-axis adjustment platform 11 comprises:

[0090] The second horizontal displacement adjustment platform 114 is arranged on the second sliding table 93 through the connecting plate 10.

[0091] The first horizontal displacement adjustment platform 113 is arranged at the movable end of the second horizontal displacement adjustment platform 114.

[0092] The second angle inclination adjustment platform 112 is arranged at the movable end of the first horizontal displacement adjustment platform 113.

[0093] The first angle inclination adjustment platform 111 is arranged at the movable end of the second angle inclination adjustment platform 112, and the movable end of the first angle inclination adjustment platform 111 is detachably connected with the test system 12 through the support plate 115.

[0094] The first angle inclination adjustment platform 111 and the second angle inclination adjustment platform 112 are used for adjusting the pitch angle of the test system 12, and the first horizontal displacement adjustment platform 113 and the second horizontal displacement adjustment platform 114 are used for adjusting the center alignment position of the test system 12 and the AR module to be tested.

[0095] The first angle inclination adjustment platform 111 and the second angle inclination adjustment platform 112 are used for adjusting the pitch angle of the test system 12, and the first horizontal displacement adjustment platform 113 and the second horizontal displacement adjustment platform 114 are used for adjusting the center alignment position of the test system 12 and the AR module to be tested.

[0096] In an embodiment of the present application, the first bottom plate 1 and the second bottom plate 2 are connected with a third bottom plate 3, and the third bottom plate 3 is connected with a first triangular side plate 4 and a second triangular side plate 5.

[0097] The first triangular side plate 4 and the second triangular side plate 5 can effectively improve the strength of the second bottom plate 2 and improve the stability of the whole device.

[0098] In an embodiment of the present application, the test system 12 comprises a camera 121 and a lens 122.

[0099] The camera 121 is detachably connected with the support plate 115 through bolts or buckles, so that the camera 121 and the lens 122 can be replaced, and the camera 121 and the lens 122 need to be calibrated by a calibration plate before use.

[0100] The present application also provides an AR module semi-automatic test method, comprising the following steps:

[0101] Calibrate the focal length of the test system 12, specifically, calibrate the focal length of the camera 121 and the lens 122 by using a calibration plate.

[0102] Fix the AR module to be tested in the AR module fixing module 6;

[0103] Drive the first electric translation table 8 to move the AR module to be tested to the test position through the controller 7;

[0104] Drive the second electric translation table 9 to move the test system 12 to the test position through the controller 7;

[0105] Adjust the test system 12 by using the four-axis adjustment platform 11, so that the test system 12 is aligned with the center eye position of the AR module to be tested;

[0106] Capture the projection image of the AR module to be tested by the test system 12, and output the optical performance parameters through software analysis;

[0107] After the test is completed, the first electric translation table 8 and the second electric translation table 9 are controlled to return to the initial position through the controller 7, and the next AR module to be tested is automatically replaced.

[0108] The first test parameter setting of different models of the AR module to be tested is set through the test software, and the subsequent test of the AR module to be tested corresponds to the same model of the first test parameter setting.

[0109] In an embodiment of the present application, the software analysis output optical performance parameters include:

[0110] The debugging parameters of the current model of the AR module to be tested are saved as the reference setting of the subsequent AR module to be tested of the same model during the first test;

[0111] As shown in Figure 6 to Figure 8 , the automatic execution of the multi-image sequence projection and data acquisition is shown.

[0112] Further, the performance parameters include FOV, maximum brightness, average brightness, brightness uniformity, color uniformity, TV distortion, optical distortion, MTF, stray light and other data of the AR module to be tested.

[0113] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0114] The above described embodiments are only to illustrate the preferred modes of the present application, and are not intended to limit the scope of the present application. Any modification and improvement made by those skilled in the art to the technical solutions of the present application without departing from the design spirit of the present application shall fall within the protection scope of the present application as defined by the claims.

Claims

1. An AR module semi-automated test equipment, characterized by, The application relates to a four-axis adjustable platform for AR module testing. The four-axis adjustable platform comprises a support structure, a first electrically-driven translation stage, an AR module fixing module, a second electrically-driven translation stage and a test system. The support structure comprises a horizontally-arranged first bottom plate and a second bottom plate vertically connected to one end of the first bottom plate. The first electrically-driven translation stage is arranged on the first bottom plate and comprises a first sliding table driven to slide in a first direction parallel to the first bottom plate. The AR module fixing module is arranged on the first sliding table and is used for detachably connecting a to-be-tested AR module. The second electrically-driven translation stage is arranged on the second bottom plate and comprises a second sliding table driven to slide in a second direction parallel to the second bottom plate. The test system is arranged on the second sliding table through the four-axis adjustable platform.

2. The AR module semi-automatic test equipment according to claim 1, wherein, A controller is used for coordinately controlling the movements of the first sliding table and the second sliding table and the image acquisition and analysis of the test system. The AR module fixing module comprises a fourth bottom plate, a first pressing block, a second pressing block and a fixing clamp. The fourth bottom plate is arranged on the first sliding table and is provided with the first pressing block and the second pressing block.

3. The AR module semi-automated test equipment of claim 2, wherein, The fixing clamp is detachably connected to the fourth bottom plate through the first pressing block and the second pressing block and is used for detachably connecting the to-be-tested AR module. The fixing clamp comprises a bearing plate, a third pressing block, a fourth pressing block and a clamping device. The clamping device is matched with the third pressing block and the fourth pressing block to realize quick clamping and releasing of the to-be-tested AR module.

4. The AR module semi-automated test equipment of claim 1, wherein, The first electrically-driven translation stage comprises a first linear guide rail, a first motor and a first limiter. The first linear guide rail is arranged on the first bottom plate and is slidably matched with the first sliding table. The first motor is used for driving the first sliding table to slide along the first linear guide rail. The first limiter is arranged at one end of the first linear guide rail.

5. The AR module semi-automated test equipment of claim 1, wherein, The second electrically-driven translation stage comprises a second linear guide rail, a second motor and a second limiter. The second linear guide rail is arranged on the second bottom plate and is slidably matched with the second sliding table. The second motor is used for driving the second sliding table to slide along the second linear guide rail. The second limiter is arranged at one end of the second linear guide rail.

6. The AR module semi-automated test equipment of claim 1, wherein, The four-axis adjustable platform comprises a second horizontal displacement adjustment platform and a connecting plate. The second horizontal displacement adjustment platform is arranged on the second sliding table through the connecting plate. A first horizontal displacement adjustment platform (113) is arranged at the movable end of the second horizontal displacement adjustment platform (114); A second angle inclination adjustment platform (112) is arranged at the movable end of the first horizontal displacement adjustment platform (113); A first angle inclination adjustment platform (111) is arranged at the movable end of the second angle inclination adjustment platform (112), and the movable end of the first angle inclination adjustment platform (111) is detachably connected with the test system (12) through a support plate (115); The first angle inclination adjustment platform (111) and the second angle inclination adjustment platform (112) are used to adjust the pitch angle of the test system (12); and the first horizontal displacement adjustment platform (113) and the second horizontal displacement adjustment platform (114) are used to adjust the center alignment position of the test system (12) and the AR module to be tested.

7. The AR module semi-automated test equipment of claim 1, wherein, The first bottom plate (1) and the second bottom plate (2) are connected with a third bottom plate (3), and the third bottom plate (3) and the second bottom plate (2) are connected with a first triangular side plate (4) and a second triangular side plate (5).

8. The AR module semi-automated test equipment of claim 1, wherein, The test system (12) comprises a camera (121) and a lens (122).

9. An AR module semi-automated testing method based on the AR module semi-automated testing device of any one of claims 1-8, characterized in that, The method comprises the following steps: Calibrating the focal length of the test system (12); Fixing the AR module to be tested in the AR module fixing module (6); Driving the first electric translation stage (8) by the controller (7) to move the AR module to be tested to a test position; Driving the second electric translation stage (9) by the controller (7) to move the test system (12) to a test position; Adjusting the test system (12) by the four-axis adjustment platform (11) to align the test system (12) with the center eye position of the AR module to be tested; Capturing the projection image of the AR module to be tested by the test system (12), and outputting the optical performance parameters through software analysis.

10. The AR module semi-automated testing method of claim 9, wherein, The optical performance parameters output through software analysis comprise: Saving the debugging parameters of the AR module to be tested of the current model as the reference setting of the AR module to be tested of the same model in subsequent tests; Automatically performing multi-image sequence projection and data acquisition.

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