Product test line of image acquisition equipment and test method of image acquisition equipment

Abstract

The invention provides a product test line of image acquisition equipment and a test method of the image acquisition equipment. According to the product test line, appearance detection is carried out through the first manual detection station, and then function test is carried out on the automatic detection station. And the target assembly of the automatic detection station executes a preset target switching or moving action according to the function test instruction, and the tested equipment collects an image of the target assembly to obtain an image or video of a corresponding target and obtain original data required by the function test. The whole process does not need manual intervention, and full-automatic operation from instruction issuing, target response, image acquisition to data generation is realized. The original data collected by the function test can be judged by a machine or manually. According to the product test line of the image acquisition equipment, the test efficiency and consistency are ensured through automation, and the flexibility and reliability of a judgment result are ensured through a man-machine cooperation mechanism.

Description

Technical Field

[0001] This application relates to the field of product testing technology, and in particular to a product testing line for an image acquisition device and a testing method for the image acquisition device. Background Technology

[0002] Before leaving the factory, image acquisition equipment undergoes rigorous full-process functional and performance testing, covering multiple dimensions including optical display, mechanical buttons, sensors, communication modules, and software functions. Currently, the industry's testing solutions for complete devices lack sufficient automation and intelligence in the execution and judgment stages, resulting in a dual reliance on manual labor. This is mainly reflected in the manual dependence on both test execution and result judgment.

[0003] In terms of test execution, the testing process for many functions still requires manual completion by operators, making it difficult to guarantee the standardization and consistency of the test procedures. Regarding result judgment, the quality and analysis of the collected test data, such as images and videos (e.g., image quality assessment, final determination of whether a function is normal), heavily rely on the subjective experience and visual observation of the testing personnel, resulting in low testing efficiency and high labor costs. Summary of the Invention

[0004] To address the existing technical problems, this application provides a product testing line for image acquisition equipment and a testing method for image acquisition equipment, which can improve testing efficiency.

[0005] In a first aspect, a product testing line for an image acquisition device is provided, comprising a production line system, a first manual inspection station and an automatic inspection station, wherein the first manual inspection station and the automatic inspection station are connected through the production line system; The first manual inspection station is used to inspect the appearance of the device under test and adjust the lens of the device under test to a specified focal length. The automatic inspection station includes a test position, a control device, a barcode scanner, and a target assembly. The barcode scanner's scanning range covers the test position. The control device is electrically connected to the barcode scanner and the target assembly. The control device is used to generate functional test instructions based on the barcode scanner's scanning results of the visually inspected device under test, and send them to the target assembly and the device under test. The control device instructs the target assembly to perform a preset target action and instructs the device under test to acquire an image of the target assembly. The control device is also used to acquire and identify the image of the target component collected by the device under test, and output the machine judgment result of the corresponding functional test. And / or, it also includes a second manual inspection station, wherein the automatic inspection station and the second manual inspection station are connected through the production line system; the second manual inspection station is used for manual judgment of the corresponding functional test by a person based on the collected image of the target component.

[0006] Secondly, a testing method for an image acquisition device is provided, applied to the product testing line of the aforementioned image acquisition device, including: In response to the WI-FI hardware signal test command, the shape target in the target assembly is controlled to move in front of the lens of the device under test, and moves uniformly in the direction toward the lens or in the opposite direction to the lens; The device under test is controlled to capture images of the moving target of the shape, and the first test video captured by the device under test is obtained based on the WI-FI connection. Based on the uniformity of the target movement in the first test video, determine whether the WI-FI hardware signal of the device under test is normal, and / or transmit the first test video to the second manual inspection station, whereby a person manually determines whether the WI-FI hardware signal of the device under test is normal.

[0007] The product testing line for the image acquisition equipment provided in the above embodiment first performs appearance inspection at a first manual inspection station. After the appearance inspection is passed and the lens is adjusted to the specified focal length, functional testing is performed at an automatic inspection station. At the automatic inspection station, the target component executes preset target switching or movement actions according to the functional test instructions. Simultaneously, the device under test acquires images of the target component, obtaining the corresponding target image or video, and acquiring the raw data required for the functional test. The entire process requires no manual intervention, achieving fully automated operation from instruction issuance, target response, image acquisition to data generation. The raw data acquired during functional testing can be automatically analyzed and identified by a control device to obtain the machine judgment result corresponding to the functional test. The raw data acquired during functional testing can also be sent to a second manual inspection station, where inspectors observe and judge based on the images and output the corresponding manual judgment result for the functional test. This product testing line for the image acquisition equipment ensures testing efficiency and consistency through automation, and ensures the flexibility and reliability of the judgment results through a human-machine collaboration mechanism.

[0008] The testing method for the image acquisition device provided in the above embodiments performs Wi-Fi hardware signal testing at an automated testing station. During testing, after the control device successfully establishes a Wi-Fi connection with the device under test (DUT), the shape target in the control target assembly moves at a constant speed towards the lens or in the opposite direction. Simultaneously, the DUT captures images of the moving shape target to obtain a first test video. The DUT then sends the real-time captured first test video to the control device via the Wi-Fi network. The control device determines whether the DUT's Wi-Fi hardware signal is normal based on the uniformity of the shape target's movement in the first test, and / or transmits the first test video to a second manual testing station for manual verification of the DUT's Wi-Fi hardware signal. This testing method utilizes the influence of Wi-Fi signal quality on the continuity of wireless video stream transmission to achieve Wi-Fi hardware signal detection. This testing method can be implemented using a semi-automated test line, transforming the traditional complex RF parameter measurement relying on shielded rooms and comprehensive testing instruments into functional verification of the timing continuity of the video stream, thus reducing costs. In this way, by using automatic testing combined with manual judgment, the throughput of factory testing is significantly increased and the testing efficiency is improved while ensuring the reliability of testing. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the composition of a product test line for an image acquisition device in one embodiment.

[0010] Figure 2 This is a schematic diagram of the structure of the first manual inspection station in one embodiment.

[0011] Figure 3 This is a structural block diagram of an automatic detection station in one embodiment.

[0012] Figure 4 This is a flowchart of a testing method for an image acquisition device in one embodiment.

[0013] Figure 5 This is a schematic diagram of the structure of the first automatic detection station in one embodiment.

[0014] Figure 6 This is a schematic diagram of the structure of the second manual inspection station in one embodiment.

[0015] Figure 7 This is a schematic diagram of the structure of the second automatic detection station in one embodiment.

[0016] Figure 8 This is a schematic diagram of the structure of the third automatic detection station in one embodiment.

[0017] Figure 9 This is a control system diagram of a product test line for an image acquisition device in one embodiment.

[0018] Figure 10 This is a schematic diagram of the product test line of an image acquisition device in one embodiment.

[0019] Among them, 10. First manual inspection station; 101. First test table; 102. First barcode scanner; 103. First display; 104. Focusing fixture; 105. First lifting mechanism; 20. Second manual inspection station; 201. Second display; 202. Third lifting mechanism; 30. Automatic inspection station; 301. Test position; 302. Control device; 303. Barcode scanner; 304. Target assembly; 305. Execution assembly; 306. Flip module; 307. Camera unit; 31. First automatic inspection station; 312. First test position; 3 13. First target assembly; 314. First camera unit; 315. First execution assembly; 316. Second barcode scanner; 317. Second lifting mechanism; 33. Second automatic detection station; 332. Second test station; 333. Second target assembly; 334. Second execution assembly; 335. Second camera unit; 336. Third barcode scanner; 35. Third automatic detection station; 352. Third test station; 353. Third execution assembly; 354. Fourth barcode scanner; 355. First flip module; 356. Third camera unit; 40. Production line system. Detailed Implementation

[0020] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be regarded as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the following description, the phrase "some embodiments" refers to a subset of all possible embodiments. It should be noted that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0023] In the following description, the terms "first, second, and third" are used merely to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first, second, and third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0024] This application provides a product testing line for image acquisition equipment, such as... Figure 1As shown, it includes: a production line system 40, a first manual inspection station 10 and an automatic inspection station 30, which are connected through the production line system 40.

[0025] Among them, the first manual inspection station 10 refers to the operation platform in which a person performs specific test items on the image acquisition equipment.

[0026] Specifically, the first manual inspection station 10 is used to inspect the appearance of the device under test and adjust the lens of the device under test to a specified focal length. For example... Figure 2 As shown, the first manual inspection station 10 includes a first test table 101, and a first barcode scanner 102, a first display 103, and a focusing fixture 104 mounted on the first test table 101. After the operator scans the barcode of the device under test using the first barcode scanner 102, the first display 103 will display the appearance test content that needs to be tested on the device under test at this inspection station, including checking the structural integrity and whether there is any wear on the appearance. After the operator performs the appearance inspection on the device under test according to this operation procedure, the operator submits the inspection results. After the appearance inspection is qualified, the operator uses the focusing fixture 104 to adjust the lens of the device under test to the target focal length (e.g., 50-60cm). The specified focal length is a prerequisite for the device under test to be able to clearly image the target component 304 in the subsequent automatic inspection station 30. In one example, the focusing fixture 104 may include a fixing component and a target, and the distance from the fixing component to the target is the same as the distance from the test position 301 to the target component 304 in the automatic inspection station 30. During focusing, the operator fixes the device under test on the mounting component, aligns the lens with the target, and then adjusts the focus until a clear image of the target can be observed on the device screen or viewfinder. Once focusing is successful, the device under test can produce a clear image at this focal length. Because the distance parameters are consistent, when the device enters the automatic testing station 30, at the currently adjusted focal length, a clear image of the target component 304 can be obtained at the test position 301 of the automatic testing station 30, thus ensuring the accuracy of subsequent automatic testing.

[0027] After the staff at the first manual inspection station 10 inspects the appearance of the equipment under test and adjusts the focus to the specified focal length, the equipment under test is transported to the automatic inspection station 30 through the assembly line system 40 for inspection.

[0028] like Figure 3As shown, the automatic inspection station 30 includes a test station 301, a control device 302, a barcode scanner 303, and a target assembly 304. The scanning range of the barcode scanner 303 covers the test station 301. The control device 302 is electrically connected to the barcode scanner 303 and the target assembly 304. The control device 302 is used to generate functional test commands based on the barcode scanning results of the barcode scanner 303 on the visually inspected device under test, and send them to the target assembly 304 and the device under test, instructing the target assembly 304 to perform preset target actions, and instructing the device under test to acquire images of the target assembly 304.

[0029] The target assembly 304 includes various switchable test targets, such as shape targets and uniform surface targets, to simulate different test scenarios. It can be understood that this test line can test different functions of different models and types of image acquisition devices. Therefore, the control device 302 determines the functional test content of the device under test based on the scanning results. For example, the functional test of the device under test can be all or part of the functional test of the automatic inspection station 30.

[0030] The target component 304 executes preset target switching or movement actions according to the functional test command, and simultaneously instructs the device under test to acquire images of the target component 304 to obtain the corresponding target images or videos, thus acquiring the raw data required for functional testing. The entire process requires no manual intervention, achieving fully automated operation from command issuance, target response, image acquisition to data generation.

[0031] The control device 302 is also used to acquire and identify the image of the target component 304 collected by the device under test, and output the machine judgment result of the corresponding functional test. Specifically, the control device 302 is used to acquire the target image collected by the device under test, and call the image recognition algorithm to automatically identify and judge, and output the machine judgment result of the corresponding functional test. The machine judgment result can be the judgment result of one or more functional tests, such as whether a certain functional test is qualified or unqualified. This method can realize the automation of the raw data acquisition, analysis and judgment required for functional testing at the automatic testing station 30, which greatly improves the testing efficiency. Furthermore, after the test is completed, the control line system 40 transfers the qualified device under test to the qualified product storage area, and the unqualified device under test to the unqualified product storage area.

[0032] And / or, the product testing line for the image acquisition equipment also includes a second manual inspection station 20, an automatic inspection station 30, and the second manual inspection station 20 is connected to the production line system 40.

[0033] The control device 302 acquires images of the target component 304 collected by the device under test. After data acquisition, the device under test is transferred to the second manual inspection station 20 via the production line system 40. The second manual inspection station 20 outputs the manual judgment result of the corresponding functional test based on the acquired images of the target component 304. That is, the second manual inspection station 20 uses the original image data of the device under test collected by the automatic inspection station 30 to make a manual judgment.

[0034] The control device 302 can also acquire images of the target component 304 collected by the device under test, identify them, and output machine judgment results for some corresponding functional tests. If it is further determined that the device under test still requires functional tests to be completed at the second manual inspection station 20, the device under test is transferred to the second manual inspection station 20 via the assembly line system 40. The second manual inspection station 20 is used for manual analysis and output of corresponding functional test judgment results by a human based on the images of the target component 304 collected at the automatic inspection station 30. Thus, some functional tests output judgment results through the automatic inspection station 30, while the second manual inspection station 20 is set up in parallel. The results of some functional tests are manually analyzed and judged by the second manual inspection station 20, and manual judgment results are output. Based on the test results, the device under test is classified into a qualified product storage area or a non-qualified product storage area.

[0035] In practical applications, for functional tests with mature algorithms, the control device 302 of the automatic detection station 30 can identify the collected images of the target component 304 and output the machine judgment results for the corresponding functional test. For functional tests involving complex subjective evaluations or those that are difficult for the algorithm to cover, the second manual detection station 20 can judge or re-verify the collected images of the target component 304 and output the manual judgment results for the corresponding functional test. This ensures both the efficiency of routine testing and the completeness, compatibility, and reliability of test coverage and results.

[0036] In this embodiment, an appearance inspection is first performed at the first manual inspection station 10. After the appearance inspection is passed and the lens is adjusted to the specified focal length, a functional test is performed at the automatic inspection station 30. The target component 304 of the automatic inspection station 30 executes preset target switching or movement actions according to the functional test instructions. At the same time, the device under test acquires images of the target component 304 to obtain images or videos of the corresponding targets, thus acquiring the raw data required for the functional test. The entire process requires no manual intervention, realizing fully automated operation from instruction issuance, target response, image acquisition to data generation. The raw data acquired by the functional test can be automatically analyzed and identified by the control device 302 to obtain the machine judgment result corresponding to the functional test. The raw data acquired by the functional test can also be sent to the second manual inspection station 20, where the inspectors observe and judge based on the images and output the manual judgment result corresponding to the functional test. This product testing line of the image acquisition equipment ensures testing efficiency and consistency through automation, and ensures the flexibility, test compatibility, and reliability of the judgment results through a human-machine collaboration mechanism.

[0037] like Figure 3 As shown, the automatic inspection station 30 also includes at least one of the following: an execution component 305, a flipping module 306, and a camera unit 307, which are electrically connected to the control device 302; The execution component 305 is used to respond to functional test commands and operate the function keys or interface of the device under test. The flip module 306 is used to respond to functional test commands and rotate the device under test by a preset angle in a specified direction. The camera unit 307 has a visual acquisition range that covers the test area of ​​the device under test, and is used to acquire test images of the test area in response to functional test commands.

[0038] Specifically, the actuator 305 can simulate human hand operation on the device under test. It can be equipped with various end effectors (such as miniature pressing heads, sliding contacts, etc.) to operate the function buttons, touch screen interface, or physical switches of the device under test. For example, in Wi-Fi button testing, shutter testing, or laser button testing, this actuator can automatically complete the button's on / off or triggering operation.

[0039] The camera unit 307 has a visual acquisition range covering the test area of ​​the device under test (DUT). The camera unit 307 can respond to functional test commands and capture images of the DUT in specific states. For example, in charging lamp testing, screen display verification, or laser spot detection, the camera unit 307 can capture images of the corresponding test area of ​​the DUT, providing raw data required for subsequent automatic or manual assessment. The camera unit 307 of the automatic testing station 30 can be a movable camera unit, allowing it to move to a designated position according to functional test commands to capture images of the DUT's test area. The camera unit 307 of the automatic testing station 30 can also include multiple cameras at different locations, each set in a preset position. The control device 302 controls the cameras at the corresponding positions to capture images of the DUT's test area according to the functional test commands.

[0040] The flip module 306 is used to respond to functional test commands and control the device under test to rotate a preset angle in a specified direction (such as the X / Y / Z axis). For example, in compass testing or motion mode (gyroscope) testing, the flip module 306 can drive the device under test to change angles in a specified direction to verify whether its orientation or motion sensing function is normal.

[0041] In this embodiment, the automatic testing station 30 expands its ability to simulate and execute different functional test scenarios by configuring at least one of the execution component 305, the flipping module 306, and the camera unit 307. This enables the automatic testing station 30 to simulate and complete functional tests across multiple dimensions, from button operations and status indication confirmation to complex spatial posture responses. Thus, a single automatic testing station 30 can integrate and sequentially execute multiple test tasks that previously required distribution across different stations or manual intervention, significantly improving the integration, automation level, and scenario coverage of the testing process.

[0042] In one embodiment, the pipeline system 40 is a two-layer pipeline system. The two-layer pipeline system includes an upper pipeline and a lower pipeline corresponding to the first manual inspection station 10, the automatic inspection station 30, and the second manual inspection station 20. The upper pipeline is used to carry the device under test (DUT) to perform various test operations, while the lower pipeline is used to buffer the DUT. The first manual inspection station 10, the automatic inspection station 30, and the second manual inspection station 20 are all equipped with lifting mechanisms for transferring the DUT between the upper and lower pipelines.

[0043] Taking the first worker's inspection station as an example, such as Figure 2As shown, the first manual inspection station 10 also includes a first lifting mechanism 105. Workers load the tested equipment, which has passed the appearance test and been focused, onto the tooling of the first lifting mechanism 105. The first lifting mechanism 105 enables the transfer of product tooling trays between the upper and lower production lines. It automatically loads the trays into the lower production line of the subsequent automatic inspection station 30, and then transports them to the upper production line for testing via the lifting mechanism of the automatic inspection station 30.

[0044] In this embodiment, a two-layer assembly line system is used to spatially decouple the testing process (upper layer) from the logistics turnover (lower layer). This allows subsequent equipment to be transported and buffered below the corresponding workstation in advance via the lower layer assembly line while the current equipment is being tested at the upper workstation. When the previous test is completed, the lifting mechanism can quickly lift the equipment under test to the testing position and lower the tested equipment for delivery, greatly reducing the waiting and idle time of equipment between workstations, thereby significantly shortening the overall testing cycle.

[0045] In one embodiment, such as Figure 1 As shown, the automatic testing station 30 includes a first automatic testing station 31, which is used to perform any one or more of the following tests: WI-FI hardware signal test, WI-FI button test, product information test, charging light test, charging test, shutter test, background correction test, and photo / video recording test.

[0046] The aforementioned functional tests at the first automatic testing station 31 cover the functional test items of the vast majority of image acquisition devices, exhibiting extremely high versatility. Therefore, the first automatic testing station 31 can meet the general functional test requirements of most image acquisition devices.

[0047] In one embodiment, the automatic inspection station 30 further includes a second automatic inspection station 33 and / or a third automatic inspection station 35 in the transport direction of the assembly line system 40; The second automatic testing station 33 is used to perform any one or more of the following: laser button testing, time setting testing, and lens torque testing; The third automatic detection station 35 is used to perform any one or more of the compass test and motion mode test.

[0048] Specifically, the aforementioned functional tests at the second automatic testing station 33 can meet the extended function testing requirements of image acquisition equipment, such as laser button testing, time setting testing, and lens torque testing. These tests target functions available in some mid-to-high-end or specific models of equipment, and their versatility is somewhat reduced compared to basic functions. By setting up the second automatic testing station 33, the testing needs of image acquisition equipment with more complex functions can be met, enhancing the compatibility of the product testing line.

[0049] Specifically, the aforementioned functional tests at the third automated testing station 35 are typically designed for niche or customized products with specific application scenarios (such as outdoor navigation and motion stabilization), and have the lowest versatility. By configuring the third automated testing station 35, the product testing line can expand its product coverage.

[0050] In one embodiment, if any test result of the device under test at the first automatic testing station 31 is abnormal, or if there are no other test items after the test is completed, the device is transferred to the second manual testing station 20 through the assembly line system 40 and does not enter the subsequent automated station.

[0051] In one embodiment, if the device under test completes all tests at the first automatic testing station 31 and there are additional tests, it is transferred to the second automatic testing station 33 via the production line system 40 to perform the corresponding extended function tests. The tests at the first automatic testing station 31 are general function tests, and the tests at the second automatic testing station 33 are extended function tests.

[0052] In other words, the first automatic testing station 31 is used to test the general functions of the image acquisition device. General functions refer to common items that most image acquisition devices need to be tested, such as Wi-Fi hardware signal testing, Wi-Fi button testing, product information testing, charging light testing, charging testing, shutter testing, background correction testing, and photo / video recording testing.

[0053] The second automatic testing station 33 is used to test the extended functions of the image acquisition device. The extended functions here usually refer to functions with medium generality and low priority, that is, additional functions of specific image acquisition devices or most models, such as laser button testing, time setting testing, and lens torque testing.

[0054] Thus, the first automated testing station 31 can primarily handle general function testing, while the second automated testing station 33 handles extended function testing. By physically and logically separating general function testing from extended function testing, the compatibility of the product testing line is greatly improved, enabling efficient testing while remaining compatible with testing new products. When product functions are iterated, only the corresponding test module needs to be added or updated at the second automated testing station 33 to quickly adapt to the new functions without modifying the core testing process. This ensures both testing consistency and efficiency while also providing scalable compatibility.

[0055] In one embodiment, if the device under test has an abnormal result in any test at the second automatic testing station 33, or if there are no other test items after the test is completed, it is transferred to the second manual testing station 20 through the assembly line system 40.

[0056] In one embodiment, if the device under test completes all tests at the second automatic testing station 33 and has specific functional tests, it is transferred to the third automatic testing station 35 via the assembly line system 40. The third automatic testing station 35 is used for specific functional tests, such as compass testing and motion mode testing.

[0057] In other words, the third automatic detection station 35 is used to test the specific functions of the image acquisition device. The specific functions here refer to those with low versatility and high specificity, which are only tested for specific models or customized devices and cannot be covered by the first automatic detection station 31 or the second automatic detection station 33, such as compass testing and motion mode testing.

[0058] Thus, the first automatic testing station 31 can mainly handle general function testing, the second automatic testing station 33 can handle extended function testing, and the third automatic testing station 35 can handle specialized function testing. For example, specialized function testing can be set up at the third automatic testing station 35 for niche or customized products, thereby expanding the product coverage of the production line.

[0059] The automated testing station 30 intelligently allocates functional tests based on the versatility of test items. Most devices requiring only basic functions can quickly proceed to subsequent stages after completing testing at the first automated testing station 31, without needing to go through all stations. This significantly shortens the average testing time for mainstream products, thereby optimizing the overall production line throughput. The three automated testing stations can be flexibly combined and activated according to actual product needs (e.g., activating only the first station; activating the first and third stations; or activating all three). This allows the same product testing line to efficiently adapt to the testing needs of different products, from basic models to high-end customized models.

[0060] Based on the product testing line of the aforementioned image acquisition equipment, this application also provides a testing method for the image acquisition equipment, which is implemented by the control device 302 of the automatic detection station 30 in the product testing line of the aforementioned image acquisition equipment.

[0061] like Figure 4 As shown, it includes: Step 402: In response to the WI-FI hardware signal test command, control the shape target in the target component 304 to move in front of the lens of the device under test, and move it uniformly in the direction towards or opposite to the lens.

[0062] Step 404: Control the device under test to capture images of the moving shape target, and obtain the first test video captured by the device under test based on the WI-FI connection.

[0063] Step 406: Based on the uniformity of the target movement in the first test video, determine whether the WI-FI hardware signal of the device under test is normal, and / or transmit the first test video to the second manual inspection station 20, whereby a person manually determines whether the WI-FI hardware signal of the device under test is normal.

[0064] The above steps describe the process of testing Wi-Fi hardware signals for image acquisition equipment. Currently, mainstream Wi-Fi hardware signal testing is typically conducted in shielded rooms or microwave anechoic chambers to isolate complex environmental electromagnetic interference. In this environment, the device under test receives instructions and transmits a specific signal on a designated channel (such as 2.4GHz or 5GHz), and testing instruments measure its transmission power and other key radio frequency parameters. However, this method has stringent requirements for the testing environment, relies on expensive specialized equipment, and has a complex and time-consuming operation process, making it difficult to integrate into high-speed, fully automated modern production lines.

[0065] The device under test can be tested for Wi-Fi hardware signal by an automatic testing station 30 equipped with a control device 302 and a target assembly 304. The above steps are implemented by the control device 302 of the automatic testing station 30.

[0066] In one embodiment, taking the first automatic inspection station 31 as an example, the appearance is inspected by the first manual inspection station 10. After the appearance inspection is qualified and the lens is adjusted to the specified focal length, the device under test is loaded onto the fixture of the first lifting mechanism 105. Then, the device under test is connected to a charging interface (such as a Type-C interface), the start button is pressed, and then the first lifting mechanism 105 transports the device under test to the lower production line, where it is automatically loaded into the subsequent first automatic inspection station 31 for automatic inspection.

[0067] It is understood that the first automatic inspection station 31 can be configured with at least several of the following components as needed: test station 301, control device 302, barcode scanner 303, target assembly 304, execution assembly 305, and camera unit 307, to achieve the relevant automatic inspection functions. For ease of description, as follows... Figure 5 As shown, the first automatic detection station 31 includes: a first control device (not shown), a first test station 312, and a first target assembly 313, a first camera unit 314, a first execution assembly 315, a second barcode scanner 316, and a second lifting mechanism 317 electrically connected to the first control device.

[0068] Specifically, after the tested equipment that has passed the inspection at the first manual inspection station 10 is transported to the lower assembly line of the first automatic inspection station 31, if the first test position 312 of the first automatic inspection station 31 is currently performing inspection, the tested equipment will be buffered in the lower assembly line. If there is no tested equipment being inspected at the first test position 312, the first control device controls the second lifting mechanism 317 to transport the tested equipment to the first test position 312 of the upper assembly line.

[0069] When the first control device successfully establishes a Wi-Fi connection with the device under test (DUT) located at the first test position 312, the first control device and the DUT can communicate via Wi-Fi. The first control device performs a Wi-Fi hardware signal test on the DUT. The first control device controls the shape target in the first target assembly 313 to move in front of the lens of the DUT, and moves it uniformly in the direction towards or opposite to the lens.

[0070] The first target assembly 313 includes a shaped target, a uniform surface target, and a moving mechanism, such as a slide table. The moving mechanism is connected to a first control device. The shape target is typically a pattern with high-frequency, regular geometric characteristics, such as a checkerboard, a dot array, or sinusoidal stripes. The shape target provides a known spatial reference for the device under test (DUT) for geometric calibration. The uniform surface target is a standard light source that provides a spatially uniform radiation field. In the visible light band, an integrating sphere or a uniform backlight is typically used; in the infrared band, a temperature-controlled blackbody is used. The uniform surface target provides a known and uniform radiation input for the DUT for radiation calibration, such as performing non-uniformity correction. To adapt to infrared camera detection, both the shaped target and the uniform surface target of the first target assembly 313 are equipped with heating elements.

[0071] The first control device controls the moving mechanism of the first target assembly 313, moving the shape target to in front of the lens of the device under test, and moving it uniformly in the direction towards or opposite to the lens. Simultaneously, the first control device sends a first shooting command to the device under test via Wi-Fi communication, instructing the device under test to capture images of the moving shape target. The device under test then sends the captured first test video to the first control device via Wi-Fi communication.

[0072] In one embodiment, a first control device can run an analysis program to identify the uniformity of the target motion in the first test video, thereby determining whether the Wi-Fi hardware signal of the device under test is normal, and thus obtaining the machine judgment result of the Wi-Fi hardware signal test. Specifically, in each frame of the video, the target motion can be automatically detected and located, and the displacement or velocity of the target between consecutive frames can be calculated to determine whether the displacement sequence is stable. Ideally, the displacement sequence should be a constant velocity. If large fluctuations occur, it indicates that the motion is not uniform.

[0073] In one embodiment, the first control device can also transmit the first test video to the second manual inspection station 20, for example, to a target location (such as a cloud drive) accessible by the control device of the second manual inspection station 20. This allows the staff at the second manual inspection station 20 to obtain the first test video from the target location (such as a cloud drive) through their control device and manually judge the uniformity of the target movement in the first test video to obtain the detection result of whether the WI-FI hardware signal is normal. Thus, the manual judgment result of the WI-FI hardware signal test can be obtained.

[0074] The device under test captures a first test video of a moving shaped target, which is then transmitted to a first control device via Wi-Fi communication. If the Wi-Fi hardware signal is normal, the data transmission is stable with no packet loss and low latency, then the first test video received by the first control device will be smooth and continuous. In the video, the movement of the shaped target will exhibit uniformity, specifically reflected in the fact that the target moves the same distance in each frame, the movement speed is constant on the screen, and the pattern is clear and without tearing.

[0075] When the Wi-Fi hardware signal is abnormal, such as due to poor antenna contact, radio frequency module failure, or severe interference, it can lead to problems such as data packet loss, increased transmission delay, or jitter.

[0076] These transmission issues will directly manifest as uneven movement of the shape target in the first test video. For example, it may cause frame loss, resulting in frame skipping in the first test video. The target, which was originally moving at a constant speed, might suddenly move a large distance at a certain moment, disrupting the continuity of the motion. Alternatively, it may cause latency jitter, making the movement of the shape target in the first test video appear jerky rather than smooth. Furthermore, it may cause severe compression or bit errors, resulting in pixelation, blurring, or screen tearing in the first test video, and even causing the shape target pattern to be incorrectly recognized in some frames.

[0077] Therefore, in this embodiment, taking advantage of the fact that unstable Wi-Fi signals can disrupt the continuity of the video stream of the first test video during transmission, the system monitors whether the shape target in the first test video is uniform and continuous to infer whether the Wi-Fi hardware signal transmission function is normal, and thus obtains the result of whether the Wi-Fi hardware signal is normal.

[0078] Among them, such as Figure 6As shown, the second manual inspection station 20 is similar to the first manual inspection station 10, including an equipment frame, a third lifting mechanism 202, a second display 201, a barcode scanner, product tooling and trays, and a production line system 40. After scanning the QR code of the device under test at the second manual inspection station 20, the second display 201 will display the specific operation procedure for the device under test at that station. After executing the procedure and submitting the results, the charging of the device under test is disconnected, and the device under test is classified into the qualified product storage area or the unqualified product storage area according to the test results. This station is the final inspection station for the product, and the product is removed from the production line after inspection.

[0079] In this embodiment, WI-FI hardware signal testing is performed at the automatic testing station 30. During testing, after the control device 302 successfully establishes a WI-FI connection with the device under test (DUT), the shape target in the target assembly 304 is controlled to move at a constant speed towards the lens or in the opposite direction. Simultaneously, the DUT is controlled to capture images of the moving shape target, obtaining a first test video. The DUT then sends the real-time captured first test video to the control device 302 via the WI-FI network. The control device 302 determines whether the DUT's WI-FI hardware signal is normal based on the uniformity of the shape target's movement during the first test, and / or transmits the first test video to the second manual testing station 20 for manual verification of the DUT's WI-FI hardware signal. This testing method utilizes the influence of WI-FI signal quality on the continuity of wireless video stream transmission to achieve WI-FI hardware signal detection. This testing method can be implemented using a semi-automatic test line, transforming the traditional complex RF parameter measurement relying on shielded rooms and comprehensive testing instruments into a functional verification of the timing continuity of the video stream, thus reducing costs. In this way, by using automatic testing combined with manual judgment, the throughput of factory testing is significantly increased and the testing efficiency is improved while ensuring the reliability of testing.

[0080] The lifting mechanism at each testing station includes a blocking and lifting positioning mechanism. When the device under test is transported to this testing station from the lower assembly line, it is first blocked, and then lifted off the assembly line by the servo lifting mechanism to eliminate vibration and achieve spatial locking. An embedded probe assembly is located within the lifting mechanism. Upon reaching the designated position, the probe automatically connects the product to power and communication interfaces through reliable contact with the customized chemical equipment adapter plate. This allows for seamless integration of product flow, precise positioning, and automatic power-on, eliminating the need for manual cable plugging and unplugging, and improving cycle time and reliability.

[0081] In one embodiment, the functional tests that the automatic detection station 30 can perform also include WI-FI button testing.

[0082] Specifically, the WI-FI button test includes: responding to the WI-FI button test command, controlling the execution component 305 to turn on the WI-FI switch of the device under test; scanning the device under test with the barcode scanner 303 to obtain the device code, and establishing a WI-FI connection with the device under test based on the device code; controlling the camera unit 307 to take a picture of the screen of the device under test to obtain a first screen photo; and determining whether the WI-FI button of the device under test is normal based on whether the first screen photo displays the WI-FI logo.

[0083] Taking the charging lamp test at the first automatic testing station 31 as an example, the first camera unit 314 of the first automatic testing station 31 may include multiple cameras. To address the differences in the distribution of function buttons, test reference marks, or screen areas under test for different models of image acquisition devices, dedicated cameras can be deployed at corresponding spatial locations within the first automatic testing station 31 to ensure that each test area is covered by the corresponding camera's field of view. For example, the specific model of the device under test can be identified by the second barcode scanner 316, and then the camera matching the testing requirements of that model can be dynamically selected to perform the shooting task.

[0084] The first execution component 315 of the first automatic detection station 31 may include multiple actuators. In practical applications, to address the physical differences in function button layout and interface interaction areas between different models of image acquisition devices, the system pre-deploys dedicated actuators based on the human-machine interaction hot zones (such as the screen side, lens side, and handle side). For example, the actuators can be robotic arms, pneumatic push rods, etc.

[0085] The first control device controls the first execution component 315 to turn on the Wi-Fi switch of the device under test. Simultaneously or after the first execution component 315 presses the Wi-Fi physical button on the device under test, the Wi-Fi module of the device under test will start and automatically generate a hotspot SSID according to a rule containing its unique device code (or key suffix). The first control device scans the surrounding wireless networks, filters the SSID list from the scan results, and searches for a hotspot that matches the target device code just scanned and bound. The first control device initiates a connection request using a preset test password, completing the Wi-Fi connection between the first control device and the device under test. The first control device controls the first camera unit 314 to take a picture of the screen of the device under test, obtaining a first screen photo. The first control device identifies whether the first screen photo displays a Wi-Fi icon, determines whether the Wi-Fi button of the device under test is functioning properly, and thus obtains the machine judgment result of the Wi-Fi button test.

[0086] In this embodiment, the process of a user pressing a physical button and seeing the Wi-Fi function turn on is automatically simulated, intelligently realizing the Wi-Fi button test.

[0087] In one embodiment, the functional tests that the automatic detection station 30 can perform also include product information testing.

[0088] Specifically, the system obtains the local first product information and the second product information in the database of the device under test; it then compares whether the first product information and the second product information are consistent to determine whether the product information of the device under test is normal.

[0089] Taking the first automatic detection station 31 for product information testing as an example, the first control device sends an information reading instruction to the device under test. The information reading instruction is used to instruct the device under test to send the local first product information to the first control device. The second product information of the device under test is obtained from the database according to the device code of the device under test. The first product information and the second product information are compared to see if they are consistent, and the test result of whether the product information of the device under test is normal is obtained.

[0090] In this way, automatic verification of product information, such as firmware version, hardware configuration code, factory parameters, serial number, etc., can be achieved, and the machine judgment result of product information testing can be obtained through automatic testing.

[0091] In one embodiment, the functional tests that the automatic detection station 30 can perform also include charging lamp testing.

[0092] The charging light test includes: responding to the charging light test command, controlling the camera unit 307 to take pictures of the charging light area of ​​the device under test during charging, and obtaining a charging light image; and determining whether the charging light of the device under test is normal based on the brightness of the charging light area in the charging light image.

[0093] Taking the charging lamp test at the first automatic detection station 31 as an example, at least one camera in the first camera unit 314 of the first automatic detection station 31 is set to face the side where the charging lamp of the device under test is located on the first test station 312.

[0094] Specifically, the first camera unit 314 can consist of multiple cameras. In practical applications, to accommodate differences in the distribution of function buttons, test reference marks, or screen areas under test for different models of image acquisition devices, dedicated cameras can be deployed at corresponding spatial locations in the first automatic inspection station 31 to ensure that each critical area is covered by the corresponding camera's field of view. For example, if the charging indicator light on the handle of some devices under test is on one side of the screen, a first camera can be placed at the position opposite the screen. Alternatively, if the screen of the device under test is opposite the first camera and the charging indicator light is at the bottom, a second camera can be placed at the bottom.

[0095] The first control device controls the corresponding camera of the first camera unit 314 to take a picture of the side where the charging light of the device under test is located, thereby obtaining an image of the charging light. The charging light includes at least one of the charging status indicator lights on the handle and the main unit of the device under test. Then, the first control device identifies whether the grayscale value of the brightness of the charging light area in the charging light image reaches a threshold, thereby obtaining a test result indicating whether the charging light of the device under test is functioning correctly.

[0096] For example, in a certain image acquisition device, when the screen of the device under test is aligned with camera A in the first camera, the main unit's charging indicator is located at the bottom. Camera A is controlled to capture an image of the side of the device under test where the charging indicator is located, thus obtaining an image of the charging indicator.

[0097] The first control device determines whether the grayscale value of the charging light area in the image reaches a certain threshold, indicating that the charging light is functioning normally. If it does not reach the threshold, it means that the charging light is not lit or the brightness is unqualified, i.e., the charging light is abnormal.

[0098] In this embodiment, the automatic detection station 30 enables automated detection of the charging status indicator lights at different locations of the device (such as the handle and the main unit).

[0099] In one embodiment, the functional tests that the automatic detection station 30 can perform also include charging tests.

[0100] The charging test includes: responding to a charging test command, controlling the camera unit 307 to take a picture of the screen of the device under test during charging, and obtaining a second screen photo; identifying whether the charging icon is displayed in the second screen photo, and determining whether the device under test is charging normally.

[0101] Taking the charging test implemented at the first automatic detection station 31 as an example, the first control device controls the first camera unit 314 to take a picture of the screen of the device under test during charging, and obtain a second screen photo; identify whether there is a charging mark in the second screen photo, so as to obtain the test result of whether the device under test is charging normally, that is, to obtain the machine judgment result of the charging test.

[0102] In this embodiment, the charging status of the device is detected through the first automatic detection station 31. By automatically recognizing the charging icon or text label in the screen UI, the detection efficiency is greatly improved.

[0103] In one embodiment, the functional tests that the automatic detection station 30 can perform also include shutter testing.

[0104] The shutter test includes: responding to the shutter test command, controlling the uniform surface target of the target assembly 304 to move relative to the lens of the device under test; controlling the execution assembly 305 to trigger the shutter of the device under test to capture a uniform surface image; determining whether the shutter of the device under test is normal based on the uniformity of the uniform surface image; and / or controlling the camera unit 307 to capture a third screen photo of the screen of the device under test, and transmitting the photo to the second manual inspection station 20 for manual judgment of whether the shutter of the device under test is normal. Taking the shutter test at the first automatic detection station 31 as an example, the first control device controls the uniform surface target of the first target assembly 313 to move to a position opposite to the lens of the device under test, and controls the corresponding actuator of the first execution assembly 315 to move and press the shutter of the device under test to take a picture of the uniform surface target. The first control device acquires the uniform surface image taken by the device under test, and determines whether the shutter of the device under test is normal based on the uniformity of the uniform surface image, thus obtaining the machine judgment result of the shutter test.

[0105] The first control device can also control the corresponding camera of the first camera unit 314 to take pictures of the screen of the device under test, obtain a third screen photo, and transmit the third screen photo to a target location accessible by the control device of the second manual inspection station 20, so that the staff of the second manual inspection station 20 can obtain the third screen photo from the target location through their control device, and judge whether the screen area of ​​the third screen photo is uniform, and obtain the test result of whether the shutter of the device under test is normal, that is, the manual judgment result of the shutter test.

[0106] This testing method uses a uniform surface target as a spatial and brightness reference source. By analyzing the brightness distribution of the image obtained after exposure, it infers whether the shutter is functioning properly during motion.

[0107] Specifically, at the set exposure time, the front and rear curtains of the shutter sweep across the sensor sequentially at a constant speed and with a fixed time difference. When shooting a uniform surface, each pixel on the sensor receives light for an equal and brief time, resulting in an image with uniform overall brightness. Even if there are slight gradient changes in brightness due to the slit scanning, these should be smooth and symmetrical. However, when the shutter malfunctions, if it fails to close or gets stuck in the middle, it means the rear curtain starts too early or the front curtain moves too slowly, causing the slit between the two curtains to remain abnormally long in a certain area of ​​the sensor (such as the middle). The pixels in this area will be severely overexposed due to the excessively long exposure time, appearing as an abnormal horizontal bright band in the image. The area where the slit sweeps across normally and quickly will exhibit normal exposure brightness.

[0108] In this embodiment, the shutter is automatically detected by the automatic detection station 30 using this testing principle.

[0109] In one embodiment, the functional tests that the automatic detection station 30 can perform also include background correction tests.

[0110] Background correction testing includes: responding to a background correction test command, controlling the target assembly 304 to move its shape target to face the lens of the device under test; controlling the execution assembly 305 to activate the background correction function of the device under test and complete the shooting; controlling the camera unit 307 to capture the screen of the device under test to obtain a fourth screen photo; switching the target assembly 304 to a uniform surface target, and controlling the execution assembly 305 to trigger the shutter of the device under test to complete the shooting; controlling the camera unit 307 to capture the screen of the device under test to obtain a fifth screen photo; determining whether the background correction of the device under test is normal based on whether the shape target pattern is displayed in the fourth screen photo and whether the fifth screen photo is uniform; and / or transmitting the fourth screen photo and the fifth screen photo to the second manual inspection station 20 for manual judgment of whether the background correction of the device under test is normal. Taking the background correction test performed at the first automatic detection station 31 as an example, the first control device controls the shape target of the first target assembly 313 to move to a position relative to the lens of the device under test, controls the corresponding actuator of the first execution assembly 315 to move and activate the background correction function of the device under test, and the device under test takes a picture of the shape target to perform background correction. The corresponding camera of the first camera unit 314 is then controlled to take a picture of the screen of the device under test, resulting in a fourth screen photo. Subsequently, the uniform surface target of the first target assembly 313 is controlled to move to a position relative to the lens of the device under test; the corresponding actuator of the first execution assembly 315 is controlled to move and press the shutter of the device under test, and the device under test takes a picture of the uniform surface target. The corresponding camera of the first camera unit 314 is then controlled to take a picture of the screen of the device under test, resulting in a fifth screen photo.

[0111] The first control device can identify and analyze whether there are shaped target patterns in the screen area of ​​the fourth screen photo and whether the screen area of ​​the fifth screen photo is uniform, so as to determine whether the background correction function of the device under test is correct, that is, to obtain the machine judgment result of the background correction test.

[0112] The first control device can also transmit the fourth and fifth screen photos to a target location accessible to the control device of the second manual inspection station 20, so that the staff of the second manual inspection station 20 can obtain the fourth and fifth screen photos from the target location through their control device, and determine whether there is a target pattern in the screen area of ​​the fourth screen photo and whether the screen area in the fifth screen photo is uniform, so as to obtain the test result of whether the background correction function of the device under test is normal, that is, to obtain the manual judgment result of the background correction test.

[0113] The automatic detection station 30 automatically performs a complex detection process for the background correction function to obtain detection data. This testing method tests the background correction function through two steps: shape target and uniform surface target. The shape target provides high-frequency, regular image signals. The fundamental task of a correct background correction algorithm is to eliminate low-frequency background inhomogeneities while completely preserving high-frequency real object edges and textures. Analyzing the fourth screen photo, if the shape target pattern is still clear, sharp, and has high contrast, it proves that the correction algorithm has not damaged the real image content and has qualified signal resolution and preservation capabilities. The uniform surface target provides a theoretically completely uniform input. Any brightness gradient or patches in the image are noise introduced by the camera system and need to be eliminated. Analyzing the fifth screen photo, if the brightness of the screen area is uniform and consistent, with no visible dark corners or bright spots, it proves that the background correction algorithm works effectively and successfully filters out the inherent spatial inhomogeneities of the system. Only when both the shape pattern is clear and the uniform surface image is uniform can it be proven that the background correction function is completely normal.

[0114] In this embodiment, the background correction function detection is achieved using the automatic detection station 30.

[0115] In one embodiment, the functional tests that the automatic detection station 30 can perform also include photo and video recording tests.

[0116] Photo and video recording test: In response to the photo and video recording test command, the uniform surface target of the target component 304 is moved to be opposite to the lens of the device under test, and the execution component 305 is triggered to trigger the shutter of the device under test to capture a uniform surface image; and / or, the shape target of the target component 304 is moved to be opposite to the lens of the device under test, and the execution component 305 is triggered to trigger the shutter of the device under test to capture a shape target video; the uniform surface image and / or shape target video are transmitted to the second manual inspection station 20. If the manual verification is normal and the uniform surface image and / or shape target video can be deleted from the device under test, then the photo and / or video recording functions of the device under test are determined to be normal.

[0117] Taking the first automatic detection station 31 for photo and video recording test as an example, the first control device controls the uniform surface target of the first target component 313 to move to the relative position of the lens of the device under test, controls the corresponding actuator of the first execution component 315 to press the shutter of the device under test, and the device under test takes a picture of the uniform surface target to obtain a uniform surface image; and / or, the first control device controls the shape target of the first target component 313 to move to the relative position of the lens of the device under test, controls the corresponding actuator of the first execution component 315 to press the shutter of the device under test, and the device under test takes a picture of the shape target to obtain a shape target video. The uniform surface image and the target shape video are transmitted to the target location accessible by the control device of the second manual inspection station 20. This allows the operator of the second manual inspection station 20 to obtain the uniform surface image and / or target shape video from the target location through their control device. If the uniform surface image and target shape video are normal, the operator can delete the uniform surface image and / or target shape video from the tested equipment. This confirms that the photographing and / or recording functions of the tested equipment are normal, thus obtaining the manual judgment result of the photographing and recording test.

[0118] Specifically, a uniform surface target can verify the static quality and integrity of a single frame image. A shape target can verify the dynamic continuity and stability of a video stream. In this embodiment, by controlling the target assembly 304 at the automatic detection station 30 to move the relevant target surface in front of the lens of the device under test according to different test commands, and cooperating with the device under test and / or the camera, the uniform surface image verifies the photo-taking function, and the shape target verifies the video-recording function.

[0119] In this embodiment, the automatic detection station 30 is used to detect the photo taking and / or video recording functions.

[0120] It is understood that the second automatic inspection station 33 can be configured with at least several of the following components, as needed: test station 301, control device 302, barcode scanner 303, target assembly 304, execution assembly 305, and camera unit 307, to achieve relevant automatic inspection functions. For ease of description, as follows... Figure 7 As shown, the second automatic detection station 33 includes: a second control device (not shown), a second test station 332, and a second target assembly 333, a second execution assembly 334, a second camera unit 335, and a third barcode scanner 336, which are electrically connected to the second control device.

[0121] It should be noted that the second execution component 334 here may include multiple actuators. In practical applications, in order to cope with the physical differences in function button layout and interface interaction areas of different models of image acquisition devices, the system pre-deploys dedicated actuators at the corresponding spatial positions of the second automatic detection station 33 according to the human-machine interaction hot zones (such as the screen side, lens side, and handle side).

[0122] Each actuator is responsible for covering a specific interactive operation domain and is dynamically bound to the device model information through the control program. For example: An electric robotic arm is deployed on the screen side of the device under test to perform precise pressing of physical buttons and sliding switches on the screen side, or to simulate complex gesture operations (such as swiping and clicking) on ​​the touch screen interface.

[0123] A high-response pneumatic or electric linear actuator is deployed on the lens side of the device under test to perform linear pressing operations on the function keys on the lens ring and the independent buttons on the side of the lens.

[0124] It should be noted that the second camera unit 335 here may include multiple cameras. In practical applications, in view of the differences in the distribution of function buttons, test reference marks or screen areas to be tested of different models of image acquisition devices, dedicated cameras can be deployed at the corresponding spatial positions of the second automatic detection station 33 to ensure that each key area can be covered by the corresponding camera's field of view.

[0125] In one embodiment, the functional tests that the automatic detection station 30 can perform also include laser button testing.

[0126] Specifically, the laser button test includes: responding to the laser button test command, controlling the uniform surface target of the target assembly 304 to move to be opposite the lens of the device under test; controlling the execution assembly 305 to turn the laser switch of the device under test on and off, and controlling the camera unit 307 to capture the first laser test image and the second laser test image respectively; determining whether the laser button of the device under test is normal based on whether the first laser test image shows laser and whether the second laser test image does not show laser.

[0127] Taking the laser button test at the second automatic detection station 33 as an example, the second control device controls the uniform surface of the second target component 333 to move in front of the lens of the device under test, controls the corresponding actuator of the second execution component 334 to turn on the laser switch of the device under test, and controls the corresponding camera of the second camera unit 335 to take a picture of the device under test, obtaining a first laser test image. The second camera unit 335 sends the acquired first laser test image to the second control device. The second control device also controls the corresponding actuator of the second execution component 334 to turn off the laser switch, and controls the corresponding camera of the second camera unit 335 to take a picture of the device under test, obtaining a second laser test image. The second camera unit 335 sends the acquired second laser test image to the second control device. The second control device identifies whether there is laser in the first laser test image and whether there is no laser in the second laser test image to determine whether the laser button of the device under test is normal, that is, to obtain the machine judgment result of the laser button test.

[0128] Using the corresponding actuator in the second execution component 334 of the second automatic detection station 33, the physical laser switch of the device is simulated by a human hand pressing it, moving the uniform surface target in front of the lens as a screen for laser projection. The uniform surface provides a uniform background, which can clearly highlight the laser spot, while minimizing the interference of ambient stray light or background texture on the recognition algorithm. The second camera unit 335 takes pictures of the device under test (especially the laser projection area) in both the laser on and off states, obtaining a first laser test image and a second laser test image. If a spot with the expected characteristics is detected in the first laser test image, and no spot is detected in the second laser test image, the laser function is determined to be normal.

[0129] This testing method enables automatic detection of laser buttons. As an extended test item of the second automatic testing station 33, when a new product adds a similar laser function, it can be quickly deployed by simply reusing or fine-tuning the second automatic testing station 33, greatly enhancing the production line's compatibility with new products and functions.

[0130] In one embodiment, the functional tests that the automatic detection station 30 can perform also include time setting tests.

[0131] The time setting test includes: obtaining the device code of the device under test through the barcode scanner 303 and establishing a Wi-Fi connection; sending a time setting command to the device under test, instructing the device under test to set the time to a preset time; the control execution component 305 turns off the device under test and turns it on after a preset interval, and controls the camera unit 307 to take a picture of the screen of the device under test to obtain a time test photo; and determining whether the time setting function of the device under test is normal based on whether the difference between the time displayed in the time test photo and the preset time is less than a threshold.

[0132] Taking the time setting test implemented at the second automatic detection station 33 as an example, the second control device obtains the device code of the device under test through the third barcode scanner 336; establishes a Wi-Fi connection with the device under test based on the device code; and sends a time setting command to the device under test, which includes the preset time to be set. The time setting command is used to instruct the device under test to set the time to the preset time; for example, setting the time to 23:09. The control unit 334 controls the corresponding actuator to shut down the device under test and turn it on after a preset interval, and controls the corresponding camera of the second camera unit 335 to take a picture of the screen of the device under test to obtain a time test photo. The second control device identifies whether the difference between the time displayed in the time test photo and the preset time is less than a threshold to determine whether the time setting function of the device under test is normal, thus obtaining the machine judgment result of the time setting test. For example, whether the time is between 23:09 and 23:11.

[0133] In this embodiment, a channel for sending precise time synchronization commands is provided by binding the device through QR code and establishing a Wi-Fi connection. Automatic testing of time settings can be achieved using the automatic detection station 30.

[0134] In one embodiment, the automatic testing station 30 can also perform lens torque testing.

[0135] The lens torque test includes: responding to the torque test command, controlling the execution component 305 to grab the lens of the device under test and rotate it by a preset angle and then turn it back; obtaining the actual angle value of the lens rotation of the device under test, and determining whether the lens torque of the device under test is normal based on whether the difference between the actual angle value and the preset angle is less than a threshold.

[0136] Taking the lens torque test at the second automatic detection station 33 as an example, the second control device controls the corresponding actuator of the second execution component 334 to grab the lens of the device under test, rotate it by a preset angle, and then rotate it back; the actual angle value of the lens rotation of the device under test is obtained. If the difference between the actual angle value and the preset angle is less than the threshold, the torque of the lens of the device under test is determined to be qualified, that is, the machine judgment result of the lens torque test is obtained.

[0137] Specifically, the health of the lens's internal mechanical structure is indirectly assessed by measuring the rotational resistance torque of the lens in manual or electric focusing modes. The system controls a high-precision rotary actuator (such as a servo gripper) to grasp the lens focusing ring and drive it to rotate forward and backward by a preset angle (empirical value). This method simulates the mechanical resistance that the transmission mechanism needs to overcome when the user manually focuses or the lens automatically focuses. The actual angle value of the rotation is obtained; if the difference between this value and the preset angle is less than a threshold, it indicates that the lens torque meets the requirements.

[0138] In this embodiment, the automatic detection station 30 can be used to realize the automatic detection of lens torque.

[0139] In one embodiment, the product testing line further includes a third automatic inspection station 35 connected to the second automatic inspection station 33 via a production line system 40. It is understood that the third automatic inspection station 35 can be configured with any combination of the following components, according to inspection requirements: test station 301, control device 302, barcode scanner 303, target assembly 304, execution assembly 305, flip module 306, and camera unit 307, to achieve relevant automatic inspection functions. For ease of description, as follows... Figure 8 As shown, a third automatic detection station 35 is defined, including: a third control device (not shown), a third test station 352, and a third execution component 353, a fourth barcode scanner 354, a first flip module 355, and a third camera unit 356 electrically connected to the third control device.

[0140] The third execution component 353 here may include multiple actuators. In practical applications, to meet the execution requirements of special detection functions of different image acquisition devices, such as button requirements and the requirements for grasping different parts, and considering the physical differences in function button layout and interface interaction areas of different models of image acquisition devices, dedicated actuators are pre-deployed according to the corresponding spatial positions of the buttons and grasping parts at the execution station.

[0141] Each actuator is responsible for covering a specific interactive operation domain and is dynamically bound to the device model information through the control program. For example: An electric robotic arm is deployed on the screen side of the device under test to perform precise pressing of physical buttons and sliding switches on the screen side, or to simulate complex gesture operations (such as swiping and clicking) on ​​the touch screen interface.

[0142] A pneumatic or electric linear actuator is deployed on the lens side of the device under test to reliably perform linear pressing operations on the function keys, focus lever, or independent buttons on the lens ring.

[0143] It should be noted that the third camera unit 356 here may include multiple cameras. In practical applications, in view of the differences in the distribution of function buttons, test reference marks or screen areas to be tested of different models of image acquisition devices, dedicated cameras can be deployed at the corresponding spatial positions of the third automatic detection station 35 to ensure that each key area can be covered by the corresponding camera's field of view.

[0144] In one embodiment, the functional tests that the automatic detection station 30 can perform also include compass testing.

[0145] The compass test includes: responding to the compass test command, controlling the execution component 305 to grab the device under test to the flip module 306 and activating the compass function of the device under test; controlling the flip module 306 to rotate along the Z direction by a preset first angle; controlling the camera unit 307 to capture a sixth screen photo of the device under test; and determining whether the compass function of the device under test is normal based on whether the scale of the compass in the sixth screen photo matches the preset first angle.

[0146] Taking the compass test at the third automatic testing station 35 as an example, the third control device controls the corresponding actuator of the third execution component 353 to grab the device under test to the first flip module 355, controls the corresponding actuator of the third execution component 353 to activate the compass function of the device under test, and controls the first flip module 355 to rotate in the Z direction by a preset first angle. The third control device controls the third camera unit 356 to take a picture of the screen of the device under test, obtaining a sixth screen photo, and the third camera unit 356 sends the acquired sixth screen photo to the third control device. The third control device identifies whether the scale of the compass in the screen area of ​​the sixth screen photo matches the preset first angle to obtain the detection result of whether the compass function of the device under test is normal, that is, to obtain the machine judgment result of the compass test. After the test is completed, the third execution component 353 controls the corresponding actuator to grab the device under test from the first flip module 355 to the third test station 352.

[0147] Specifically, the first flip module 355 rotates by a preset first angle in the Z direction (vertical axis), thereby changing the orientation (azimuth) of the device under test in the horizontal plane. The third camera unit 356 takes a picture of the screen, and the angle value displayed by the compass is obtained by recognizing the picture.

[0148] The angle value displayed by the device under test is compared with the preset first angle actually rotated by the first flip module 355. If the difference between the two is within the allowable error threshold, it proves that the compass function is normal.

[0149] This testing method utilizes the automatic detection station 30 to automatically test the compass function.

[0150] In one embodiment, the functional tests that the automatic detection station 30 can perform also include motion pattern testing.

[0151] The motion mode test includes: responding to the motion mode test command, controlling the execution component 305 to grab the device under test to the flip module 306 and activating the motion mode function of the device under test; controlling the flip module 306 to rotate along the Y direction by a preset second angle; controlling the camera unit 307 to capture a seventh screen photo of the device under test; and determining whether the motion function of the device under test is normal based on whether the angle displayed in the seventh screen photo matches the preset second angle.

[0152] Taking the motion mode test implemented at the third automatic detection station 35 as an example, the third control device controls the corresponding actuator of the third execution component 353 to grab the device under test to the first flip module 355, controls the corresponding actuator of the third execution component 353 to activate the motion mode function of the device under test, and controls the first flip module 355 to rotate in the Y direction by a preset second angle. The third camera unit 356 is controlled to take a picture of the screen of the device under test, obtaining a seventh screen photo, which is then sent to the third control device. The third control device identifies whether the angle of the screen area displayed in the seventh screen photo matches the preset second angle to obtain a detection result of whether the motion function of the device under test is normal, i.e., the machine judgment result of the motion mode test. After the test is completed, the corresponding actuator of the third execution component 353 is controlled to grab the device under test from the first flip module 355 to the third test station 352.

[0153] Specifically, the device is rotated around the Y-axis by the first flip module 355, applying a precise and known roll angle change. This simulates the tilt attitude changes that occur in real-world use (such as left and right tilting during handheld shooting). The screen is captured by the third camera unit 356, and the third control device reads the angle value displayed on the screen using an image recognition algorithm. This value represents the attitude angle sensed and calculated by the device. The correctness of the motion mode detection function is checked by comparing this displayed value with the actual physical rotation angle provided by the first flip module 355.

[0154] This testing method utilizes the automatic detection station 30 to automatically detect motion mode functions.

[0155] In one embodiment, the first control device, the second control device, and the third control device each include a host computer, a device controller, and a camera host computer. For example... Figure 9 As shown, the host computer of the device connects to the controller and the camera's host computer to achieve precise control of the process. For example, it sends control commands related to the device controller, instructing the controller to control actions such as the assembly line system 40, actuators, and slides according to the corresponding test instructions to meet the corresponding test requirements. It also sends corresponding control commands to the camera controller according to the test process. The camera controller controls the corresponding camera to take pictures, executes the corresponding visual algorithm to recognize the images, and sends the recognition results to the host computer of the device. This division of functions among the control devices ensures the real-time performance and stability of the system. For example, it can mitigate the risk of control command delays or stuttering caused by the high resource consumption of image processing tasks.

[0156] The product testing line for the image acquisition equipment of this application, such as... Figure 10As shown, the system includes a first manual inspection station 10, a first automatic inspection station 31, a second automatic inspection station 33, a third automatic inspection station 35, and a second manual inspection station 20. After scanning the QR code of the device under test at the first manual inspection station 10, the display will show the specific operation procedure for that station. After executing the procedure and submitting the results, the product is loaded onto the fixture of the lifting mechanism. Note that the charging interface (such as a Type-C interface) of the device under test must be connected. Press the start button, and the device under test will be transferred to the first automatic inspection station 31 via the assembly line system 40. At the first automatic inspection station 31, general functions such as WI-FI hardware signal testing, WI-FI button testing, product information testing, charging light testing, charging testing, shutter testing, background correction testing, and photo / video recording testing can be performed. After testing, the device can be transferred to the second automatic inspection station 33 according to actual testing needs. At the second automatic inspection station 33, extended functions such as laser button testing, time setting testing, and lens torque testing can be performed. After the test is completed, it can be transferred to the third automatic test station 35 according to the actual test requirements, where special functions such as compass test and motion mode test can be performed.

[0157] If any inspection item at any automatic inspection station 30 fails, or if all inspection items are completed, the product is transferred to the second manual inspection station 20 via the production line system 40. At the second manual inspection station 20, after manual scanning, the automatic test result (OK - indicating pass / fail) is displayed, along with the detailed operating procedure for that manual inspection station. If NG (indicating failure), the product is directly moved to the non-conforming product storage area; if OK (indicating pass), the manual inspection process continues and the result is submitted. Similarly, if the manual inspection result is NG (indicating failure), the product is directly moved to the non-conforming product storage area; if OK (indicating pass), all testing for that product is completed, and the tested equipment is categorized into the conforming product storage area.

[0158] The product testing line for this image acquisition equipment has the following technical advantages: 1. A semi-automatic testing pipeline for image acquisition equipment is constructed by combining manual and automatic testing stations. The automatic testing station automates the entire process from command issuance, target response, image acquisition to data generation, obtaining the raw data required for functional testing. The acquired raw data can be judged by the machine or manually. This semi-automatic testing pipeline significantly improves the automation level and testing efficiency of the image acquisition equipment, achieving reduced manpower, increased efficiency, and ultimately lower costs.

[0159] 2. The automation of multiple testing items has enabled the conversion of manual testing to automated testing. Automation ensures the consistency of testing and improves the quality of product testing.

[0160] 3. Improved the automation rate of product testing, achieving reduced manpower and increased efficiency.

[0161] 4. By accurately assigning test items to the first (core), second (extended), and third (specialized) automated workstations according to their versatility, most devices that only require general functions can proceed to manual final inspection or be taken off the production line after completing the first workstation. This avoids all devices undergoing lengthy full-item testing, greatly reduces the average testing time for mainstream products, and optimizes the overall production line cycle time.

[0162] 5. When new features are added to the product, there is no need to restructure the production line. Testing for compatibility with the new features can be quickly achieved at the corresponding extended or dedicated workstations.

[0163] It should be noted that, in this document, 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 a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0164] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0165] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A product testing line for an image acquisition device, characterized in that, It includes a production line system (40), a first manual inspection station (10) and an automatic inspection station (30), wherein the first manual inspection station (10) and the automatic inspection station (30) are connected through the production line system (40); The first manual inspection station (10) is used to inspect the appearance of the device under test and adjust the lens of the device under test to a specified focal length; The automatic detection station (30) includes a test station (301), a control device (302), a barcode scanner (303), and a target assembly (304). The scanning range of the barcode scanner (303) covers the test station (301). The control device (302) is electrically connected to the barcode scanner (303) and the target assembly (304). The control device (302) is used to generate a functional test command based on the barcode scanning result of the barcode scanner (303) on the visually inspected device under test, and send it to the target assembly (304) and the device under test, instructing the target assembly (304) to perform a preset target action, and instructing the device under test to acquire an image of the target assembly (304). The control device (302) is also used to acquire and identify the image of the target component (304) collected by the device under test, and output the machine judgment result of the corresponding functional test. And / or, it also includes a second manual inspection station (20), the automatic inspection station (30) and the second manual inspection station (20) are connected through the production line system (40); the second manual inspection station (20) is used to output the manual judgment result of the corresponding functional test by a person based on the image of the target component (304) collected.

2. The product testing line for the image acquisition device according to claim 1, characterized in that, The automatic detection station (30) further includes at least one of the following: an execution component (305), a flip module (306), and a camera unit (307) electrically connected to the control device (302); The execution component (305) is used to respond to the functional test command and operate the function keys or interface of the device under test; The flip module (306) is used to respond to the functional test command and rotate the device under test by a preset angle in a specified direction; The visual acquisition range of the camera unit (307) covers the test area of ​​the device under test, and is used to acquire test images of the test area in response to the functional test command.

3. The product testing line for the image acquisition device according to claim 1, characterized in that, The assembly line system (40) is a two-layer assembly line system; The dual-layer pipeline system includes an upper pipeline and a lower pipeline corresponding to the first manual inspection station (10), the automatic inspection station (30), and the second manual inspection station (20). The upper pipeline is used to carry the device under test to perform various test operations, and the lower pipeline is used to buffer the device under test. The first manual inspection station (10), the automatic inspection station (30) and the second manual inspection station (20) are all equipped with lifting mechanisms, which are used to transfer the equipment under test between the upper production line and the lower production line.

4. The product testing line for the image acquisition device according to claim 1, characterized in that, The automatic testing station (30) includes a first automatic testing station (31), which is used to perform any one or more of the following tests: WI-FI hardware signal test, WI-FI button test, product information test, charging light test, charging test, shutter test, background correction test, and photo / video recording test.

5. The product testing line for the image acquisition device according to claim 4, characterized in that, The automatic inspection station (30) further includes a second automatic inspection station (33) and / or a third automatic inspection station (35) in the transport direction of the assembly line system (40). The second automatic detection station (33) is used to perform any one or more of the following tests: laser button testing, time setting testing, and lens torque testing; The third automatic detection station (35) is used to perform any one or more of the compass test and motion mode test.

6. A testing method for an image acquisition device, applied to a product testing line for the image acquisition device as described in any one of claims 1 to 5, characterized in that, include: In response to the WI-FI hardware signal test command, the shape target in the target component (304) is controlled to move to the front of the lens of the device under test, and moves uniformly in the direction toward the lens or in the opposite direction to the lens; The device under test is controlled to capture images of the moving target of the shape, and the first test video captured by the device under test is obtained based on the WI-FI connection. Based on the uniformity of the target movement in the first test video, determine whether the WI-FI hardware signal of the device under test is normal, and / or transmit the first test video to the second manual inspection station (20) for manual judgment of whether the WI-FI hardware signal of the device under test is normal.

7. The testing method for the image acquisition device according to claim 6, characterized in that, This also includes Wi-Fi button testing and / or product information testing: The WI-FI button test includes: responding to a WI-FI button test command, controlling the execution component (305) to turn on the WI-FI switch of the device under test; scanning the device under test with the barcode scanner (303) to obtain the device code, and establishing a WI-FI connection with the device under test based on the device code; controlling the camera unit (307) to take a picture of the screen of the device under test to obtain a first screen photo; and determining whether the WI-FI button of the device under test is normal based on whether the first screen photo displays a WI-FI icon. The product information test includes: acquiring the local first product information and the second product information in the database of the device under test; comparing whether the first product information and the second product information are consistent, and determining whether the product information of the device under test is normal.

8. The testing method for the image acquisition device according to claim 6, characterized in that, This also includes charging light testing and / or charging testing: The charging lamp test includes: responding to a charging lamp test command, controlling the camera unit (307) to take a picture of the charging lamp area of ​​the device under test during charging, and obtaining a charging lamp image; and determining whether the charging lamp of the device under test is normal based on the brightness of the charging lamp area in the charging lamp image. The charging test includes: responding to a charging test command, controlling the camera unit (307) to take a picture of the screen of the device under test during charging, and obtaining a second screen photo; identifying whether the second screen photo displays a charging icon, and determining whether the device under test is charging normally.

9. The testing method for the image acquisition device according to claim 6, characterized in that, It also includes at least one of the following: shutter speed test, background correction test, and photo / video test: The shutter test includes: responding to a shutter test command, controlling the uniform surface target of the target component (304) to move to be opposite to the lens of the device under test; controlling the execution component (305) to trigger the shutter of the device under test to capture a uniform surface image; determining whether the shutter of the device under test is normal based on the uniformity of the uniform surface image; and / or controlling the camera unit (307) to capture a third screen photo of the screen of the device under test, and transmitting it to the second manual inspection station (20) for manual determination of whether the shutter of the device under test is normal. The background correction test includes: responding to a background correction test command, controlling the shape target of the target component (304) to move to be opposite to the lens of the device under test; controlling the execution component (305) to open the background correction function of the device under test and complete the shooting; controlling the camera unit (307) to shoot the screen of the device under test to obtain a fourth screen photo; switching the target component (304) to a uniform surface target, controlling the execution component (305) to trigger the shutter of the device under test to complete the shooting; controlling the camera unit (307) to shoot the screen of the device under test to obtain a fifth screen photo; determining whether the background correction of the device under test is normal based on whether the fourth screen photo displays a shape target pattern and whether the fifth screen photo is uniform, and / or transmitting the fourth screen photo and the fifth screen photo to the second manual inspection station (20) for manual determination of whether the background correction of the device under test is normal; The photo and video recording test includes: responding to the photo and video recording test command, controlling the uniform surface target of the target component (304) to move to face the lens of the device under test, and controlling the execution component (305) to trigger the shutter of the device under test to capture a uniform surface image; and / or, controlling the shape target of the target component (304) to move to face the lens of the device under test, and controlling the execution component (305) to trigger the shutter of the device under test to capture a shape target video; transmitting the uniform surface image and / or the shape target video to the second manual inspection station (20), and if it is verified by manual inspection and is normal, and the uniform surface image and / or the shape target video can be deleted from the device under test, then it is determined that the photo and / or video recording functions of the device under test are normal.

10. A test method for an image acquisition device according to any one of claims 6 to 9, characterized in that, The method also includes at least one of laser button testing, time setting testing, and lens torque testing: The laser button test includes: responding to a laser button test command, controlling the uniform surface target of the target component (304) to move to face the lens of the device under test; controlling the execution component (305) to turn the laser switch of the device under test on and off, and controlling the camera unit (307) to capture a first laser test image and a second laser test image respectively; determining whether the laser button of the device under test is normal based on whether laser is displayed in the first laser test image and whether there is no laser in the second laser test image. The time setting test includes: obtaining the device code of the device under test through the barcode scanner (303) and establishing a WI-FI connection; sending a time setting command to the device under test, instructing the device under test to set the time to a preset time; controlling the execution component (305) to turn off the device under test and turn it on after a preset interval; controlling the camera unit (307) to take a picture of the screen of the device under test to obtain a time test photo; determining whether the time setting function of the device under test is normal based on whether the difference between the time displayed in the time test photo and the preset time is less than a threshold. The lens torque test includes: responding to a torque test command, controlling the execution component (305) to grab the lens of the device under test and rotate it back by a preset angle; obtaining the actual angle value of the lens rotation of the device under test, and determining whether the lens torque of the device under test is normal based on whether the difference between the actual angle value and the preset angle is less than a threshold.

11. The test method for the image acquisition device according to claim 10, characterized in that, This also includes compass testing and / or motion pattern testing: The compass test includes: responding to a compass test command, controlling the execution component (305) to grab the device under test to the flip module (306) and activating the compass function of the device under test; controlling the flip module (306) to rotate a preset first angle along the Z direction; controlling the camera unit (307) to capture a sixth screen photo of the screen of the device under test; and determining whether the compass function of the device under test is normal based on whether the scale of the compass in the sixth screen photo matches the preset first angle. The motion mode test includes: responding to the motion mode test command, controlling the execution component (305) to grab the device under test to the flip module (306) and activating the motion mode function of the device under test; controlling the flip module (306) to rotate a preset second angle along the Y direction; controlling the camera unit (307) to take a picture of the screen of the device under test to obtain a seventh screen photo; and determining whether the motion function of the device under test is normal based on whether the angle displayed in the seventh screen photo matches the preset second angle.

Images