Smart watch CAM test device

Abstract

The invention relates to the field of smartwatch CAM testing, in particular to smartwatch CAM testing equipment, which comprises a lower rack, and is characterized in that the lower rack is fixedly connected with a turntable assembly, and the turntable assembly is used for bearing and transmitting a to-be-tested smartwatch; the turntable assembly is provided with a white card test assembly, a fixed-focus test assembly and a black card test assembly in a surrounding manner, and the turntable assembly sequentially conveys the smart watch to test stations of the white card test assembly, the fixed-focus test assembly and the black card test assembly. The turntable assembly is adopted, and the white card test assembly, the fixed-focus test assembly and the black card test assembly are arranged around the turntable assembly, so that the smart watch to be tested is driven by the turntable assembly to be sequentially conveyed to each white card test station, each fixed-focus test station and each black card test station after being loaded at a single station; the problems of low efficiency and poor positioning consistency caused by repeated manual or external mechanical arm transfer in the prior art are solved.

Description

Technical Field

[0001] This invention relates to the field of smartwatch CAM testing technology, specifically to a smartwatch CAM testing device. Background Technology

[0002] As highly integrated wearable devices, the image quality of a smartwatch's camera module (CAM) directly impacts the user experience for functions such as shooting, video calls, and health monitoring. Therefore, comprehensive automated testing of smartwatch cameras during the manufacturing process is a crucial step in ensuring their optical performance and reliability. This testing includes multiple items such as resolution, white balance, dead pixels, and noise.

[0003] Currently, the industry typically uses independent single-function test stations or semi-automatic processes that require manual intervention to test cameras. During testing, the smartwatch under test is moved, positioned, and tested sequentially at different, dispersed test stations. However, the reliance on manual or external robotic arms for transfer between each process results in low overall testing efficiency and makes it difficult to ensure the consistency of the watch's positioning during the test, thus affecting the stability of the test results. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art, which rely on manual or external robotic arms for transfer between processes, resulting in low overall testing efficiency and difficulty in ensuring the consistency of watch positioning during the testing process, thus affecting the stability of test results. The present invention provides a smart watch CAM testing device.

[0005] To solve the above-mentioned technical problems, the present invention provides a smart watch CAM testing device, including a lower frame, on which a turntable assembly is fixedly connected, the turntable assembly being used to carry and transport the smart watch to be tested; The turntable assembly surrounds a white card test assembly, a fixed-focus test assembly, and a black card test assembly. The turntable assembly sequentially transports the smartwatch to the test stations of the white card test assembly, the fixed-focus test assembly, and the black card test assembly.

[0006] Furthermore, the turntable assembly includes a turntable, the upper surface of which is provided with a plurality of trays for placing smartwatches, and the trays are provided with positioning grooves for fixing the smartwatches.

[0007] Furthermore, the turntable assembly also includes a drive motor and a hollow turntable. The drive motor is fixedly connected to the lower frame, and the hollow turntable is fixedly connected to the bottom of the turntable. The output end of the drive motor is connected to the input end of the hollow turntable.

[0008] Furthermore, a photoelectric sensor is fixedly connected to the top of the drive motor, and the photoelectric sensor is used to detect the rotation position of the turntable.

[0009] Furthermore, the white card testing assembly includes a first bracket and an LED white backlight; The LED white backlight is mounted on the first bracket via a first adjustment mechanism. The first adjustment mechanism is used to adjust the position of the LED white backlight relative to the smartwatch camera on the tray. The LED white backlight is used to provide a standard white light source environment.

[0010] Furthermore, the first adjustment mechanism includes a first mounting plate and a first adjustment block. The first adjustment block is adjustablely mounted on the first bracket. The first mounting plate is fixedly connected to the first adjustment block. The LED white backlight is fixedly connected to the bottom of the first mounting plate.

[0011] Furthermore, the fixed-focus testing component includes a second bracket, a planar light source, and a test chart. The test chart is fixedly connected to the bottom of the planar light source. The planar light source is mounted on the second bracket via a second adjustment mechanism. The second adjustment mechanism is used to adjust the distance between the test chart and the smartwatch camera on the tray. The planar light source, in conjunction with the test chart, is used to provide a standard chart test light source.

[0012] Furthermore, the second adjustment mechanism includes a second adjustment block and a second mounting plate. The second adjustment block is adjustablely mounted on the second bracket, and the second mounting plate is fixedly connected to the second adjustment block. The planar light source is fixedly connected to the bottom of the second mounting plate.

[0013] Furthermore, the black card testing component includes a third bracket, on which a third adjustment block is detachably connected, and a dark box is connected to the third adjustment block. The dark box contains a black card to provide a completely dark testing environment.

[0014] Furthermore, a cylinder is fixedly connected to the side of the third adjusting block, and the output end of the cylinder is fixedly connected to the top of the dark box for driving the dark box to move up and down.

[0015] Furthermore, a protective cover is fixedly connected to the top of the lower frame, and the protective cover covers the turntable assembly, the white card test assembly, the fixed-focus test assembly, and the black card test assembly.

[0016] Furthermore, the protective cover is provided with an operating port, and when the turntable assembly stops intermittently, at least one test station of the turntable assembly is located inside the operating port.

[0017] By employing the above technical solution, the present invention provides a smartwatch CAM testing device, which has at least the following beneficial effects: This smartwatch CAM testing equipment uses a turntable assembly, and sets up white card testing components, fixed-focus testing components, and black card testing components around the turntable assembly. This allows the smartwatch under test to be loaded at a single station and then sequentially transported to the white card testing station, fixed-focus testing station, and black card testing station by the turntable assembly. This solves the problems of low efficiency and poor positioning consistency caused by multiple manual or external robotic arm transfers in the existing technology. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a schematic diagram of the turntable assembly structure in this invention; Figure 4 This is a schematic diagram of the turntable assembly from a low angle in this invention; Figure 5 This is a schematic diagram of the white card testing component structure in this invention; Figure 6 This is a schematic diagram of the fixed-focus testing component structure in this invention; Figure 7 This is a schematic diagram of the black card testing component structure in this invention.

[0020] In the diagram: 10. Lower frame; 20. Turntable assembly; 21. Turntable; 22. Tray; 23. Positioning slot; 24. Drive motor; 25. Hollow turntable; 26. Photoelectric sensor; 30. White card test assembly; 31. First bracket; 32. First adjusting block; 33. First mounting plate; 34. LED white backlight; 40. Fixed-focus test assembly; 41. Second bracket; 42. Second adjusting block; 43. Second mounting plate; 44. Planar light source; 45. Test chart; 50. Black card test assembly; 51. Third bracket; 52. Third adjusting block; 53. Cylinder; 54. Dark box; 60. Protective cover; 61. Operating port. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1 and Figure 2 A smartwatch CAM testing device includes a lower frame 10, on which a turntable assembly 20 is fixedly connected. The turntable assembly 20 is used to carry and transport the smartwatch to be tested. The turntable assembly 20 surrounds the white card test assembly 30, the fixed-focus test assembly 40, and the black card test assembly 50. The turntable assembly 20 sequentially transmits the smartwatch to the test stations of the white card test assembly 30, the fixed-focus test assembly 40, and the black card test assembly 50.

[0023] After the smartwatch under test is loaded onto a station on the turntable assembly 20, the turntable assembly 20 rotates intermittently according to a preset program, sequentially sending the smartwatch to the white card test station, the fixed-focus test station, and the black card test station. The camera test is automatically completed in an assembly line manner. Compared with the existing technology, this reduces the time and manpower spent on transporting and positioning the smartwatch between different test stations, and improves the testing efficiency.

[0024] like Figure 3 As shown, the turntable assembly 20 includes a horizontally arranged turntable 21. Multiple trays 22 for placing smartwatches are equidistantly arranged along the circumferential direction on the upper surface of the turntable 21. Each tray 22 has a positioning groove 23 that matches the shape of the smartwatch. The positioning groove 23 can limit the smartwatch's position, preventing it from shifting or falling off during subsequent rotation and testing.

[0025] like Figure 3 and Figure 4 As shown, the turntable assembly 20 also includes a drive motor 24 and a hollow turntable 25. The drive motor 24 is fixedly connected to the lower frame 10, and the hollow turntable 25 is fixedly connected to the bottom of the turntable 21. The output end of the drive motor 24 is connected to the input end of the hollow turntable 25. The intermittent rotation of the drive motor 24 can drive the hollow turntable 25 and the turntable 21 to rotate together, and make the tray 22 stop accurately at the preset test station or loading / unloading station.

[0026] like Figure 4 As shown, a photoelectric sensor 26 is fixedly connected to the top of the drive motor 24. The photoelectric sensor 26 is used to detect the rotation position of the turntable 21.

[0027] like Figure 2 and Figure 5 As shown, the white card test assembly 30 includes a first bracket 31 and an LED white backlight 34; The LED white backlight 34 is mounted on the first bracket 31 via a first adjustment mechanism. The first adjustment mechanism is used to adjust the position of the LED white backlight 34 relative to the smartwatch camera on the tray 22.

[0028] Once the turntable 21 delivers the smartwatch to the white card testing station and comes to a stable stop, the smartwatch's camera faces the LED white backlight 34. The LED white backlight 34 emits uniform, stable, and color-temperature-standardized white light, covering the entire field of view of the smartwatch's camera. The camera captures this uniform white light field, and the resulting image is used to analyze white balance, color uniformity, dead pixels, and dirt. The LED white backlight 34 has a color temperature of 5000k±200K and a brightness of 550±50Lux.

[0029] like Figure 5 As shown, the first adjustment mechanism includes a first mounting plate 33 and a first adjustment block 32. The first adjustment block 32 is adjustablely mounted on the first bracket 31. The first mounting plate 33 is fixedly connected to the first adjustment block 32. The LED white backlight 34 is fixedly connected to the bottom of the first mounting plate 33.

[0030] When it is necessary to adjust the height of the LED white backlight 34, loosen the locking bolt of the first adjusting block 32, and then move the first adjusting block 32 up and down. The locking bolt slides in the vertical groove of the first bracket 31, thereby driving the first mounting plate 33 and the LED white backlight 34 to move up and down. After adjusting to the optimal position where the camera's field of view is completely and evenly covered by the LED white backlight 34, tighten the first adjusting block 32 again.

[0031] like Figure 2 and Figure 6 As shown, the fixed-focus test assembly 40 includes a second bracket 41, a planar light source 44, and a test chart 45. The test chart 45 is fixedly connected to the bottom of the planar light source 44 and is attached or printed on the bottom of the light-emitting surface of the planar light source 44. The planar light source 44 is mounted on the second bracket 41 through a second adjustment mechanism. The second adjustment mechanism is used to adjust the distance between the test chart 45 and the smartwatch camera on the tray 22. The planar light source 44, in conjunction with the test chart 45, is used to provide a standard chart test light source.

[0032] A planar light source 44 illuminates the test chart 45 with uniform light. After the smartwatch camera takes a picture of the test chart 45, the MTF / SFR value is calculated by analyzing the edge contrast of specific patterns in the image. The planar light source 44 has a brightness of 650±50 and a color temperature of 6500±500.

[0033] like Figure 6As shown, the second adjustment mechanism includes a second adjustment block 42 and a second mounting plate 43. The second adjustment block 42 is adjustablely mounted on the second bracket 41, and the second mounting plate 43 is fixedly connected to the second adjustment block 42. The planar light source 44 is fixedly connected to the bottom of the second mounting plate 43. The distance between the plane of the test chart 45 and the lens plane of the camera under test can be adjusted through the second adjustment mechanism to simulate different focusing distances.

[0034] like Figure 2 and Figure 7 As shown, the black card test component 50 includes a third bracket 51, a third adjustment block 52 is detachably connected to the third bracket 51, and a dark box 54 is connected to the third adjustment block 52. When it is necessary to detect camera noise and color dots, the dark box 54 moves and completely covers the smartwatch camera, forming a sealed, completely dark environment. The camera performs long-exposure shooting in this environment, analyzes the returned image, and analyzes the difference ratio between the surrounding color and grayscale and the center.

[0035] In some embodiments, the dark box 54 contains a black card, which is a black flat plate with extremely high light absorption. The black card can absorb stray light and ensure the purity of the test environment.

[0036] like Figure 7 As shown, a cylinder 53 is fixedly connected to the side of the third adjusting block 52. The output end of the cylinder 53 is fixedly connected to the top of the dark box 54, which is used to drive the dark box 54 to move up and down. When the cylinder 53 operates, it pushes the dark box 54 downward, which can completely cover the camera of the smartwatch, forming a sealed, completely dark environment.

[0037] like Figure 1 As shown, a protective cover 60 is fixedly connected to the top of the lower frame 10, covering the turntable assembly 20, the white card testing assembly 30, the fixed-focus testing assembly 40, and the black card testing assembly 50. The protective cover 60 is provided with an operation port 61. When the turntable 21 stops intermittently, the testing station of at least one turntable assembly 20 is located within the operation port 61, facilitating loading and unloading.

[0038] In use, the operator places the smartwatch to be tested into the positioning slot 23 of the stopped tray 22 through the operation port 61 to complete the loading. Then, the drive motor 24 drives the hollow turntable 25 and the turntable 21 to rotate. The photoelectric sensor 26 detects the rotation position of the turntable 21 in real time. When the tray 22 carrying the smartwatch rotates to the preset white card test station, the drive motor 24 stops. At this time, the camera of the smartwatch is facing the LED white backlight 34 of the white card test component 30. The LED white backlight 34 emits a uniform white light field. The camera takes a picture of the white light field, and the image data is transmitted back and analyzed to complete the testing of items such as white balance, color uniformity, dead pixels, and dirt. After the white card test is completed, the turntable 21 rotates again under the drive of the drive motor 24, sending the smartwatch to the fixed-focus test station. The planar light source 44 evenly illuminates the test chart 45 at its bottom, controls the smartwatch camera to take pictures of the standard test chart 45, and analyzes the acquired image to calculate the MTF / SFR value, thereby completing the evaluation of the camera resolution and sharpness. Subsequently, turntable 21 continues to rotate, delivering the smartwatch to the black card testing station. Cylinder 53 then moves the dark box 54 downwards, completely covering the smartwatch's camera and creating a sealed, completely dark testing environment that isolates it from external light. Within this environment, the smartwatch's camera is controlled to perform long-exposure photography, acquiring dark-field images. These images are then analyzed to detect defects such as noise and color spots. After the test is completed, cylinder 53 retracts, and the dark box 54 rises.

[0039] Finally, turntable 21 rotates the smartwatch that has completed all three camera tests back to the operation port 61 position, so that the operator can take out the tested smartwatch and put in the next smartwatch to be tested.

[0040] This invention integrates the three testing processes of white card, fixed focus, and black card into an automated production line through the cyclic conveying of the turntable assembly 20, realizing continuous, efficient, and automated operation of smartwatch camera testing.

[0041] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smartwatch CAM testing device, comprising a lower frame (10), characterized in that: A turntable assembly (20) is fixedly connected to the lower frame (10), and the turntable assembly (20) is used to carry and transport the smart watch to be tested; The turntable assembly (20) is arranged around the white card test assembly (30), the fixed-focus test assembly (40) and the black card test assembly (50). The turntable assembly (20) sequentially transmits the smartwatch to the test stations of the white card test assembly (30), the fixed-focus test assembly (40) and the black card test assembly (50).

2. The smartwatch CAM testing equipment according to claim 1, characterized in that: The turntable assembly (20) includes a turntable (21), the upper surface of which is provided with a plurality of trays (22) for placing smartwatches, and the trays (22) are provided with positioning grooves (23) for fixing smartwatches.

3. The smartwatch CAM testing equipment according to claim 2, characterized in that: The turntable assembly (20) also includes a drive motor (24) and a hollow turntable (25). The drive motor (24) is fixedly connected to the lower frame (10), and the hollow turntable (25) is fixedly connected to the bottom of the turntable (21). The output end of the drive motor (24) is connected to the input end of the hollow turntable (25).

4. The smartwatch CAM testing equipment according to claim 3, characterized in that: A photoelectric sensor (26) is fixedly connected to the top of the drive motor (24), and the photoelectric sensor (26) is used to detect the rotation position of the turntable (21).

5. The smartwatch CAM testing equipment according to claim 1, characterized in that: The white card test assembly (30) includes a first bracket (31) and an LED white backlight (34). The LED white backlight (34) is mounted on the first bracket (31) via a first adjustment mechanism. The first adjustment mechanism is used to adjust the position of the LED white backlight (34) relative to the smartwatch camera on the tray (22). The LED white backlight (34) is used to provide a standard white light source environment.

6. The smartwatch CAM testing equipment according to claim 1, characterized in that: The fixed-focus test assembly (40) includes a second bracket (41), a planar light source (44), and a test chart (45). The test chart (45) is fixedly connected to the bottom of the planar light source (44). The planar light source (44) is mounted on the second bracket (41) through a second adjustment mechanism. The second adjustment mechanism is used to adjust the distance between the test chart (45) and the smartwatch camera on the tray (22). The planar light source (44) works with the test chart (45) to provide a standard chart test light source.

7. The smartwatch CAM testing equipment according to claim 1, characterized in that: The black card testing component (50) includes a third bracket (51), on which a third adjustment block (52) is detachably connected, and a dark box (54) is connected to the third adjustment block (52) to provide a completely dark testing environment.

8. The smartwatch CAM testing equipment according to claim 7, characterized in that: A cylinder (53) is fixedly connected to the side of the third adjusting block (52). The output end of the cylinder (53) is fixedly connected to the top of the dark box (54) to drive the dark box (54) to move up and down.

9. The smartwatch CAM testing equipment according to claim 1, characterized in that: The top of the lower frame (10) is fixedly connected to a protective cover (60), which covers the turntable assembly (20), the white card test assembly (30), the fixed focus test assembly (40), and the black card test assembly (50).

10. The smartwatch CAM testing equipment according to claim 9, characterized in that: The protective cover (60) is provided with an operation port (61). When the turntable assembly (20) stops intermittently, at least one test station of the turntable assembly (20) is located in the operation port (61).

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