Mini LED backlight lamp panel detection system, method, device, equipment and medium

Abstract

The invention discloses a Mini LED backlight lamp panel detection system, method, device, equipment and medium, and the method comprises the steps: obtaining the lightening information of a lamp panel, adjusting an initial shooting parameter according to the lightening information, and obtaining a target shooting parameter; performing image shooting on the lamp panel by adopting the target shooting parameter to obtain an initial image; image preprocessing is carried out on the initial image to obtain a preprocessed image, light spot extraction is carried out on the preprocessed image to obtain light spot information, and the light spot information comprises the number of light spots and the light spot brightness of each light spot; and determining a detection result of the Mini LED backlight lamp panel based on the light spot information and the lightening information. According to the invention, the detection efficiency and accuracy are improved.

Description

Technical Field

[0001] The present invention relates to the field of product detection, and in particular to a MiniLED backlight panel detection system, method, device, equipment and medium. Background Art

[0002] MiniLED backlight technology is an advanced display technology that has undergone technological upgrades based on traditional LED backlight. During the production process of MiniLED backlight boards (the same applies to light strips), the assembled light boards need to be tested for optical and electrical performance to verify whether the light boards are qualified.

[0003] At present, the main inspection method of the production line is based on manual visual inspection. The light board is lit in different modes (such as low current lighting, high current lighting, row and column lighting, etc.), and then the workers observe whether there are abnormal lighting of the lamp beads in different modes to determine whether the light board is qualified. This method is not only inefficient, but also because the workers need to concentrate for a long time to stare at the lit LED, it is easy to cause dizziness and visual fatigue, resulting in false detection and missed detection, resulting in low detection accuracy. Summary of the invention

[0004] Embodiments of the present invention provide a MiniLED backlight board detection system, method, device, equipment and medium to improve the detection accuracy of the MiniLED backlight board.

[0005] In order to solve the above technical problems, the embodiment of the present application provides a MiniLED backlight panel detection system, which is characterized by comprising a driving board module and a visual detection module, wherein the driving board module and the visual detection module are connected to each other through a serial communication protocol, the driving board module comprises a light board control component and a first data interaction component, and the visual detection module comprises a camera component, a data processing component, and a second data interaction component; wherein,

[0006] The light board control component is used to control the lighting mode and / or lighting sequence of the light board;

[0007] The first data interaction component is used to transmit the control parameters of the light board to the second data interaction component, and receive the detection result fed back by the second data interaction component;

[0008] The camera assembly is used to capture images of the light board;

[0009] The data processing component is used to perform data analysis and processing on the image collected by the camera component to obtain a detection result, and send the detection result to the first data interaction component through the second data interaction component.

[0010] Optionally, the driving board module further includes an external communication component, which is electrically connected to the light board control component and is used to receive external control instructions and transmit the received external control instructions to the light board control component.

[0011] In order to solve the above technical problems, the embodiment of the present application provides a MiniLED backlight board detection method, which is applied to the above MiniLED backlight board detection system. The MiniLED backlight board detection method includes:

[0012] Acquire lighting information of the light board, adjust initial shooting parameters according to the lighting information, and obtain target shooting parameters, wherein the lighting information includes lighting mode and brightness information;

[0013] Using the target shooting parameters to shoot an image of the light board to obtain an initial image;

[0014] Performing image preprocessing on the initial image to obtain a preprocessed image, and performing light spot extraction on the preprocessed image to obtain light spot information, wherein the light spot information includes the number of light spots and the light spot brightness of each light spot;

[0015] Based on the light spot information and the lighting information, a MiniLED backlight panel detection result is determined.

[0016] Optionally, the acquiring lighting information of the light board, adjusting the initial shooting parameters according to the lighting information, and obtaining the target shooting parameters includes:

[0017] After receiving the photo command, the exposure time and the camera angle of the camera component are adjusted according to the lighting mode and the brightness information to obtain an updated exposure time and an updated camera angle;

[0018] The updated exposure time and the updated camera angle are used as the target shooting parameters.

[0019] Optionally, performing image preprocessing on the initial image to obtain a preprocessed image includes:

[0020] Performing a dedistortion process on the initial image to obtain a first processed image;

[0021] The first processed image is subjected to binarization and standardization processing to obtain the preprocessed image.

[0022] Optionally, the determining the MiniLED backlight panel detection result based on the light spot information and the lighting information includes:

[0023] Determine a first number of lit lights according to the lighting mode, match the number of light spots with the first number of lit lights, and obtain a first detection result;

[0024] For each light spot, based on the brightness information and the brightness of the light spot, determine a second detection result of the lamp bead corresponding to the light spot;

[0025] Based on the first detection result and the second detection result, a MiniLED backlight board detection result is determined.

[0026] Optionally, for each light spot, based on the brightness information and the light spot brightness, determining a second detection result of a lamp bead corresponding to the light spot includes:

[0027] According to the light spot information, the centroid coordinates of each light spot are determined, and the area of ​​each light spot is calculated to obtain the actual light spot area;

[0028] Determining actual brightness based on the actual light spot area;

[0029] The actual brightness is compared with the light spot brightness to obtain a second detection result.

[0030] In order to solve the above technical problems, the embodiment of the present application further provides a MiniLED backlight panel detection device, including:

[0031] A parameter acquisition module, used to acquire lighting information of the light board, adjust the initial shooting parameters according to the lighting information, and obtain target shooting parameters, wherein the lighting information includes a lighting mode and brightness information;

[0032] An image acquisition module, used to capture an image of the light board using the target shooting parameters to obtain an initial image;

[0033] An image processing module, used to perform image preprocessing on the initial image to obtain a preprocessed image, and to perform spot extraction on the preprocessed image to obtain spot information, wherein the spot information includes the number of spots and the brightness of each spot;

[0034] A light board detection module is used to determine a MiniLED backlight board detection result based on the light spot information and the lighting information.

[0035] Optionally, the parameter acquisition module includes:

[0036] A parameter adjustment unit, configured to adjust the exposure time and the camera angle of the camera component according to the lighting mode and the brightness information after receiving the photo command, so as to obtain the updated exposure time and the updated camera angle;

[0037] The target parameter determination unit is used to use the updated exposure time and the updated camera angle as the target shooting parameters.

[0038] Optionally, the image processing module includes:

[0039] A dedistortion processing unit, configured to perform dedistortion processing on the initial image to obtain a first processed image;

[0040] The binarization processing unit is used to perform binarization processing and standardization processing on the first processed image to obtain the pre-processed image.

[0041] Optionally, the light board detection module includes:

[0042] A first detection unit, configured to determine a first number of lit lights according to the lighting mode, match the number of light spots with the first number of lit lights, and obtain a first detection result;

[0043] A second detection unit, configured to determine, for each light spot, a second detection result of the lamp bead corresponding to the light spot based on the brightness information and the light spot brightness;

[0044] A result determination unit is used to determine a MiniLED backlight panel detection result based on the first detection result and the second detection result.

[0045] Optionally, the second detection unit includes:

[0046] An area calculation subunit, used to determine the centroid coordinates of each light spot according to the light spot information, and calculate the area of ​​each light spot to obtain an actual light spot area;

[0047] A brightness determination subunit, used to determine actual brightness based on the actual light spot area;

[0048] The result determination subunit is used to compare the actual brightness with the light spot brightness to obtain a second detection result.

[0049] In order to solve the above technical problems, an embodiment of the present application also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above MiniLED backlight panel detection method when executing the computer program.

[0050] In order to solve the above technical problems, an embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned MiniLED backlight board detection method are implemented.

[0051] The MiniLED backlight panel detection system, method, device, computer equipment and storage medium provided by the embodiments of the present invention obtain the lighting information of the panel, adjust the initial shooting parameters according to the lighting information, and obtain the target shooting parameters; use the target shooting parameters to shoot the image of the panel to obtain the initial image; perform image preprocessing on the initial image to obtain the preprocessed image, and perform light spot extraction on the preprocessed image to obtain light spot information, which includes the number of light spots and the light spot brightness of each light spot; determine the MiniLED backlight panel detection result based on the light spot information and the lighting information. The intelligent notification method is implemented to quickly detect the MiniLED backlight panel in different mode states, thereby improving the detection efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0053] Figure 1 It is a structural schematic diagram of the MiniLED backlight panel detection system of the present application;

[0054] Figure 2 is a flow chart of an embodiment of a MiniLED backlight panel detection method of the present application;

[0055] Figure 3 is a structural schematic diagram of an embodiment of a MiniLED backlight panel detection device according to the present application;

[0056] Figure 4 It is a structural diagram of an embodiment of a computer device according to the present application. DETAILED DESCRIPTION

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0058] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0059] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] See also Figure 1 , Figure 1 The schematic diagram of the structure of a MiniLED backlight panel detection system provided by an embodiment of the present invention is shown, including a light panel (or light bar) 101 to be detected, a driving board module 102 and a visual detection module 103, the driving board module 102 and the visual detection module 103 are connected to each other through a serial communication protocol, the driving board module 102 includes a light panel control component and a first data interaction component, and the visual detection module 103 includes a camera component, a data processing component, and a second data interaction component; wherein,

[0061] The light board control component is used to control the lighting mode and / or lighting sequence of the light board;

[0062] The first data interaction component is used to transmit the control parameters of the light board to the second data interaction component, and receive the detection result fed back by the second data interaction component;

[0063] The camera component is used to collect images of the light board;

[0064] The data processing component is used to perform data analysis and processing on the images collected by the camera component to obtain detection results, and send the detection results to the first data interaction component through the second data interaction component.

[0065] Preferably, the driving board module 102 further includes an external communication component, which is electrically connected to the light board control component and is used to receive external control instructions and transmit the received external control instructions to the light board control component.

[0066] Specifically, the MiniLED backlight panel detection system is mainly composed of two modules, namely the MiniLED driver board module 102 and the visual detection module 103. A serial communication protocol is set between the two modules to perform data exchange via a serial communication interface.

[0067] Among them, the driver board module 102 is mainly used to drive the MiniLED backlight board. It can set the lighting mode and lighting order of the light board, and at the same time interact with the visual detection module 103 for data communication, send commands such as light board parameters and lighting mode to the visual detection module, and receive the detection results fed back by the visual detection module 103.

[0068] The camera component uses a global shutter black and white camera, which is responsible for capturing images of the light board; the data processing component processes the captured images through an image processing algorithm, determines and outputs the detection results; the second data interaction component is responsible for communicating with the drive module, obtaining the lighting mode, outputting the detection results, etc.

[0069] In this embodiment, the driving board module of the system realizes the driving of the light bar / light board. The driving board module can preset different lighting modes (such as full light, full off, row light running, column light running, etc.) according to different test requirements. After lighting the light board, it notifies the detection module to perform detection, and then waits for the detection result. After receiving the detection result, it automatically jumps to the next detection mode until the detection stops abnormally or the detection is completed. The detection module controls the exposure parameters of the camera component according to the mode data provided by the driving board, and then takes an image of the light bar / light board, so that the lit lamp beads can form a clear light spot in the image. Then, a series of algorithm processing such as de-distortion processing, binary filtering, light spot extraction, light spot number statistics, light spot centroid calculation, and light spot area calculation are performed, and then compared and judged according to the lighting mode and algorithm data to confirm the detection result. Rapid detection of MiniLED backlight boards is achieved, which improves the efficiency and accuracy of MiniLED backlight board detection.

[0070] See also Figure 2 , Figure 2 A MiniLED backlight panel detection method provided by an embodiment of the present invention is shown. The method is applied in Figure 1 The MiniLED backlight panel detection system in the example is used as an example to illustrate the details as follows:

[0071] S201: Acquire lighting information of the light board, adjust initial shooting parameters according to the lighting information, and obtain target shooting parameters, wherein the lighting information includes a lighting mode and brightness information.

[0072] In a specific optional implementation manner, in step S201, the lighting information of the light board is obtained, and the initial shooting parameters are adjusted according to the lighting information, and the target shooting parameters are obtained, including:

[0073] After receiving the photo command, the exposure time and the camera angle of the camera component are adjusted according to the lighting mode and the brightness information to obtain an updated exposure time and an updated camera angle;

[0074] The updated exposure time and the updated camera angle are used as target shooting parameters.

[0075] Specifically, the driver board implements a serial communication protocol with the visual detection module. After the driver board module is powered on, it sends a handshake command to the visual detection module to confirm that the connection with the visual detection module is successful. If the connection is unsuccessful, the driver board will issue an alarm to remind the connection error.

[0076] The driver board module records the basic parameter information of the light board, such as the number of lamp beads in the rows and columns of the light board, the number of lamp beads in each partition, etc. After the driver board is successfully connected to the visual inspection module, it sends the light board parameter command to the visual inspection module.

[0077] The driver board supports different lighting modes, such as high current lighting, low current lighting, ping-pong lighting, row running, column running, open and short circuit detection, etc. Different lighting modes and test processes can be preset according to production needs. The driver board lights up the light board according to the preset mode. After lighting is completed, the lighting mode and brightness information are sent to the visual inspection module, notifying the visual inspection module to start photo detection, and then waiting for the visual inspection module to return the detection result of the mode.

[0078] S202: photographing the light board using target photographing parameters to obtain an initial image.

[0079] Specifically, in this embodiment, the distortion parameters of the imaging component (such as a camera) are first calibrated, and the camera image plane must be parallel to the light board plane to ensure that the captured image will not cause the lamp bead light spot to be deformed due to the angle of inclination. After the visual detection module is started, it waits for the communication handshake command of the driving board module, and after receiving the handshake command, it shakes hands with the driving board to establish a communication connection, and then waits to receive the light board parameter command of the driving board module. After receiving the parameter command, it responds and saves the relevant parameters of the light board, and then waits to receive the lighting mode and photo command of the driving board module. After receiving the photo command, the exposure time of the camera is adjusted according to the lighting mode and brightness information to avoid overexposure or too dark image, and the image of the lit light board is captured.

[0080] It should be noted that the visual inspection module needs to complete the distortion parameter calibration of the camera in advance and store the calibrated distortion parameters. This calibration only needs to be performed once. If the camera component is replaced, it should be recalibrated.

[0081] S203: performing image preprocessing on the initial image to obtain a preprocessed image, and performing light spot extraction on the preprocessed image to obtain light spot information, where the light spot information includes the number of light spots and the brightness of each light spot.

[0082] In a specific optional implementation manner, in step S203, performing image preprocessing on the initial image to obtain the preprocessed image includes:

[0083] Performing dedistortion processing on the initial image to obtain a first processed image;

[0084] The first processed image is subjected to binarization and standardization processing to obtain a preprocessed image.

[0085] It should be understood that the purpose of performing de-distortion processing on the captured image is to eliminate the distortion effect of the camera and improve the image processing effect.

[0086] S204: Determine the MiniLED backlight panel detection result based on the light spot information and the lighting information.

[0087] In a specific optional implementation, in step S204, determining the MiniLED backlight panel detection result based on the light spot information and the lighting information includes:

[0088] Determine the first number of lights on according to the lighting mode, match the number of light spots with the first number of lights on, and obtain a first detection result;

[0089] For each light spot, based on the brightness information and the brightness of the light spot, determine a second detection result of the lamp bead corresponding to the light spot;

[0090] Based on the first detection result and the second detection result, a MiniLED backlight panel detection result is determined.

[0091] In a specific optional implementation manner, for each light spot, based on the brightness information and the light spot brightness, determining the second detection result of the lamp bead corresponding to the light spot includes:

[0092] According to the light spot information, the centroid coordinates of each light spot are determined, and the area of ​​each light spot is calculated to obtain the actual light spot area;

[0093] Determine the actual brightness based on the actual spot area;

[0094] The actual brightness is compared with the light spot brightness to obtain a second detection result.

[0095] It should be noted that the area of ​​the light spot is positively correlated with the brightness of the lamp bead. When the brightness of the lamp bead is uneven, the size of the light spot will be different. By comparing the area of ​​each light spot, if the area of ​​a light spot exceeds the threshold range, it means that the lamp bead is too bright or too dark. The light board is judged to be poorly detected and the cause of the poor detection is recorded. A detection abnormality command is sent to the driver board (and to the MES system at the same time), and the detection ends.

[0096] For the row and column running mode, the centroid coordinates of each light spot can also be compared. If the centroid coordinates of the light spot exceed the coordinate threshold of the corresponding row and column, it means that there is an abnormality. The light board is judged to have poor detection and the reason for the poor detection is recorded. A detection abnormality command is sent to the driver board (and to the MES system at the same time), and the detection ends.

[0097] Furthermore, in this embodiment, after one mode test is completed, the test can be switched to another mode for continued testing according to actual application needs.

[0098] In this embodiment, by obtaining the lighting information of the light board, adjusting the initial shooting parameters according to the lighting information, obtaining the target shooting parameters; using the target shooting parameters to shoot the light board to obtain the initial image; performing image preprocessing on the initial image to obtain the preprocessed image, and performing spot extraction on the preprocessed image to obtain the spot information, which includes the number of spots and the brightness of each spot; based on the spot information and the lighting information, determining the MiniLED backlight board detection result. The intelligent notification method is implemented to quickly detect the MiniLED backlight board in different modes, thereby improving the detection efficiency and accuracy.

[0099] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0100] Figure 3 The schematic diagram of the MiniLED backlight panel detection device corresponding to the MiniLED backlight panel detection method in the above embodiment is shown. Figure 3 As shown, the MiniLED backlight panel detection device includes a parameter acquisition module 31, an image acquisition module 32, an image processing module 33 and a panel detection module 34. The functional modules are described in detail as follows:

[0101] The parameter acquisition module 31 is used to acquire the lighting information of the light board, adjust the initial shooting parameters according to the lighting information, and obtain the target shooting parameters, wherein the lighting information includes the lighting mode and brightness information;

[0102] An image acquisition module 32 is used to capture an image of the light board using target capture parameters to obtain an initial image;

[0103] The image processing module 33 is used to perform image preprocessing on the initial image to obtain a preprocessed image, and to perform light spot extraction on the preprocessed image to obtain light spot information, where the light spot information includes the number of light spots and the brightness of each light spot;

[0104] The light board detection module 34 is used to determine the MiniLED backlight light board detection result based on the light spot information and the lighting information.

[0105] Optionally, the parameter acquisition module 31 includes:

[0106] A parameter adjustment unit, configured to adjust the exposure time and the camera angle of the camera component according to the lighting mode and the brightness information after receiving the photo command, so as to obtain the updated exposure time and the updated camera angle;

[0107] The target parameter determination unit is used to use the updated exposure time and the updated camera angle as target shooting parameters.

[0108] Optionally, the image processing module 33 includes:

[0109] A dedistortion processing unit, used for performing dedistortion processing on the initial image to obtain a first processed image;

[0110] The binarization processing unit is used to perform binarization processing and standardization processing on the first processed image to obtain a pre-processed image.

[0111] Optionally, the light board detection module 34 includes:

[0112] A first detection unit, used to determine a first number of lighted lamps according to the lighting mode, match the number of light spots with the first number of lighted lamps, and obtain a first detection result;

[0113] A second detection unit is used to determine, for each light spot, a second detection result of the lamp bead corresponding to the light spot based on the brightness information and the light spot brightness;

[0114] The result determination unit is used to determine the MiniLED backlight panel detection result based on the first detection result and the second detection result.

[0115] Optionally, the second detection unit includes:

[0116] The area calculation subunit is used to determine the centroid coordinates of each light spot according to the light spot information, and calculate the area of ​​each light spot to obtain the actual light spot area;

[0117] A brightness determination subunit, used to determine actual brightness based on an actual light spot area;

[0118] The result determination subunit is used to compare the actual brightness with the light spot brightness to obtain a second detection result.

[0119] For the specific definition of the MiniLED backlight board detection device, please refer to the definition of the MiniLED backlight board detection method above, which will not be repeated here. Each module in the above-mentioned MiniLED backlight board detection device can be implemented in whole or in part through software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0120] To solve the above technical problems, the present application also provides a computer device. Figure 4 , Figure 4 This is a basic structural block diagram of the computer device in this embodiment.

[0121] The computer device 4 includes a memory 41, a processor 42, and a network interface 43 that are interconnected through a system bus. It should be noted that the figure only shows a computer device 4 with components connected to the memory 41, the processor 42, and the network interface 43, but it should be understood that it is not required to implement all the components shown, and more or fewer components can be implemented instead. Among them, those skilled in the art can understand that the computer device here is a device that can automatically perform numerical calculations and / or information processing according to pre-set or stored instructions, and its hardware includes but is not limited to microprocessors, application specific integrated circuits (Application Specific Integrated Circuit, ASIC), programmable gate arrays (Field-Programmable Gate Array, FPGA), digital processors (Digital Signal Processor, DSP), embedded devices, etc.

[0122] The computer device may be a computing device such as a desktop computer, a notebook, a PDA, a cloud server, etc. The computer device may interact with a user through a keyboard, a mouse, a remote controller, a touch pad, or a voice control device.

[0123] The memory 41 includes at least one type of readable storage medium, and the readable storage medium includes flash memory, hard disk, multimedia card, card-type memory (for example, SD or D interface display memory, etc.), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, disk, optical disk, etc. In some embodiments, the memory 41 can be an internal storage unit of the computer device 4, such as a hard disk or memory of the computer device 4. In other embodiments, the memory 41 can also be an external storage device of the computer device 4, such as a plug-in hard disk equipped on the computer device 4, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. Of course, the memory 41 can also include both the internal storage unit of the computer device 4 and its external storage device. In this embodiment, the memory 41 is generally used to store the operating system and various application software installed on the computer device 4, such as the program code of the MiniLED backlight board detection method, etc. In addition, the memory 41 can also be used to temporarily store various types of data that have been output or are to be output.

[0124] The processor 42 may be a central processing unit (CPU), a controller, a microcontroller, a microprocessor, or other data processing chip in some embodiments. The processor 42 is generally used to control the overall operation of the computer device 4. In this embodiment, the processor 42 is used to run the program code stored in the memory 41 or process data, such as running the program code of the MiniLED backlight panel detection method.

[0125] The network interface 43 may include a wireless network interface or a wired network interface. The network interface 43 is generally used to establish a communication connection between the computer device 4 and other electronic devices.

[0126] The present application also provides another implementation, namely, providing a computer-readable storage medium, wherein the computer-readable storage medium stores an interface display program, and the interface display program can be executed by at least one processor so that the at least one processor performs the steps of the MiniLED backlight board detection method as described above.

[0127] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0128] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is also within the scope of patent protection of this application.

Claims

1. A MiniLED backlight panel detection system, characterized in that: It includes a driving board module and a visual detection module, wherein the driving board module and the visual detection module are connected to each other through a serial communication protocol, the driving board module includes a light board control component and a first data interaction component, and the visual detection module includes a camera component, a data processing component, and a second data interaction component; wherein, The light board control component is used to control the lighting mode and / or lighting sequence of the light board; The first data interaction component is used to transmit the control parameters of the light board to the second data interaction component, and receive the detection result fed back by the second data interaction component; The camera assembly is used to capture images of the light board; The data processing component is used to perform data analysis and processing on the image collected by the camera component to obtain a detection result, and send the detection result to the first data interaction component through the second data interaction component.

2. The MiniLED backlight panel detection system according to claim 1, characterized in that: The driving board module also includes an external communication component, which is electrically connected to the light board control component and is used to receive external control instructions and transmit the received external control instructions to the light board control component.

3. A MiniLED backlight panel detection method, characterized in that: Applied to the MiniLED backlight panel detection system according to claim 1 or 2, the method comprises: Acquire lighting information of the light board, adjust initial shooting parameters according to the lighting information, and obtain target shooting parameters, wherein the lighting information includes lighting mode and brightness information; Using the target shooting parameters to shoot an image of the light board to obtain an initial image; Performing image preprocessing on the initial image to obtain a preprocessed image, and performing light spot extraction on the preprocessed image to obtain light spot information, wherein the light spot information includes the number of light spots and the light spot brightness of each light spot; Based on the light spot information and the lighting information, a MiniLED backlight panel detection result is determined.

4. The MiniLED backlight panel detection method according to claim 3, characterized in that: The step of acquiring the lighting information of the light board, adjusting the initial shooting parameters according to the lighting information, and obtaining the target shooting parameters comprises: After receiving the photo command, the exposure time and the camera angle of the camera component are adjusted according to the lighting mode and the brightness information to obtain an updated exposure time and an updated camera angle; The updated exposure time and the updated camera angle are used as the target shooting parameters.

5. The MiniLED backlight panel detection method according to claim 3, characterized in that: The performing image preprocessing on the initial image to obtain a preprocessed image comprises: Performing a dedistortion process on the initial image to obtain a first processed image; The first processed image is subjected to binarization and standardization processing to obtain the preprocessed image.

6. The MiniLED backlight panel detection method according to claim 3, characterized in that: The determining of the MiniLED backlight panel detection result based on the light spot information and the lighting information includes: Determine a first number of lit lights according to the lighting mode, match the number of light spots with the first number of lit lights, and obtain a first detection result; For each light spot, based on the brightness information and the brightness of the light spot, determine a second detection result of the lamp bead corresponding to the light spot; Based on the first detection result and the second detection result, a MiniLED backlight board detection result is determined.

7. The MiniLED backlight panel detection method according to claim 6, characterized in that: For each light spot, based on the brightness information and the light spot brightness, determining a second detection result of a lamp bead corresponding to the light spot includes: According to the light spot information, the centroid coordinates of each light spot are determined, and the area of ​​each light spot is calculated to obtain the actual light spot area; Determining actual brightness based on the actual spot area; The actual brightness is compared with the light spot brightness to obtain a second detection result.

8. A MiniLED backlight panel detection device, characterized in that: include: A parameter acquisition module, used to acquire lighting information of the light board, adjust the initial shooting parameters according to the lighting information, and obtain target shooting parameters, wherein the lighting information includes a lighting mode and brightness information; An image acquisition module, used to capture an image of the light board using the target shooting parameters to obtain an initial image; An image processing module, used to perform image preprocessing on the initial image to obtain a preprocessed image, and perform spot extraction on the preprocessed image to obtain spot information, wherein the spot information includes the number of spots and the brightness of each spot; A light board detection module is used to determine a MiniLED backlight board detection result based on the light spot information and the lighting information.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the MiniLED backlight board detection method as described in any one of claims 3 to 7 is implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the MiniLED backlight panel detection method as described in any one of claims 3 to 7 is implemented.

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