LED lamp panel integration test system and method
By integrating an image-taking module with an FCT testing system, the LED light board inspection method solves the problem of balancing efficiency and accuracy in the FCT process, achieving efficient and accurate inspection results and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-07
- Publication Date
- 2026-04-10
AI Technical Summary
In existing technologies, LED light board inspection in the FCT process is difficult to balance efficiency and accuracy. Manual visual inspection is prone to misjudgment and missed detection, while independent visual inspection equipment increases costs and disrupts the testing process.
Design an integrated testing system for LED light boards, integrating a photography module and an FCT testing system. The system uses an industrial camera to acquire images of LED light boards in real time and performs visual analysis. The results are then compared with those of the control module and the host computer to achieve the same power-on test at the same workstation.
It improves detection accuracy and consistency, reduces false positives and missed detections, avoids process interruptions, reduces equipment and site costs, and improves overall testing efficiency.
Smart Images
Figure CN121831208A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of circuit testing, and relates to an LED lamp plate testing system, in particular to an LED lamp plate integrated testing system and method. BACKGROUND
[0002] In the complete production process of a printed circuit board assembly (PCBA), after the welding and assembly processes are completed, functional verification is a decisive link to ensure product quality and reliability. This link is usually completed through FCT (Functional Circuit Test). The essence of FCT is to provide a simulated or real working environment for the unit under test (UUT), to comprehensively verify whether the design functions of the UUT are normally implemented by applying corresponding input signals and monitoring the output response, including voltage, current, timing, communication protocol, and various logic functions. For many circuit boards containing human-computer interaction instructions or state displays, LED lamp plates are one of the key components, and the correctness of their display states (such as color, brightness, and lighting sequence) directly reflects the running status of the underlying circuit. Therefore, the detection of LED lamp plates is an indispensable part of the FCT process.
[0003] However, in the existing production process, there are two traditional ways for LED lamp plate detection in the FCT process, which cannot balance efficiency and accuracy, and constitute a technical bottleneck that needs to be solved in the field. The first way is manual visual detection, that is, the operator directly observes the display state of the LED lamp plate during FCT testing and compares it with the expected result. This method relies heavily on human subjective judgment and sustained attention, and in a long-time, high-repetition work environment, it is easy to cause misjudgment and missed detection due to visual fatigue, distraction, or individual differences, and the consistency and accuracy of detection cannot be guaranteed, and objective data recording and tracing cannot be performed. The second way is to introduce independent special visual detection equipment, that is, an additional visual detection station is set up outside the FCT test station, and the LED lamp plate or related module is first placed in the equipment for detection, and after passing the detection, it is assembled or reflowed to the FCT test process. Although this method improves the automation and objectivity of detection, its disadvantages are also significant: it breaks the complete test process, increases the complexity of material handling, repeated loading and unloading, and multi-station coordination, not only significantly reduces the overall test efficiency and prolongs the product production cycle, but also causes additional equipment investment costs, fixture costs, and site occupancy costs, resulting in an increase in the overall cost of the production line.
[0004] Therefore, how to integrate the high-precision LED visual detection function into the standard FCT test process, improve the test efficiency and reduce the cost under the premise of ensuring the detection quality has become one of the main problems in the industry. SUMMARY
[0005] The purpose of the present application is to provide an LED lamp panel integrated test system and method for improving the test efficiency of the LED lamp panel.
[0006] In a first aspect, the present application provides an LED lamp panel integrated test system, which comprises a rack, a lifting adjustment assembly, a lower transverse beam, a functional test device support table and a photographing module; the photographing module is arranged on the middle transverse beam at the top of the rack, and the functional test device support table is arranged at the bottom of the rack; the middle transverse beam at the top of the rack is parallel to the plane on which the functional test device support table is located; the lifting adjustment assembly is fixedly connected to the bottom of the rack, and is symmetrically arranged on both sides of the rack; the lower transverse beam is connected to both sides of the rack, and the lifting adjustment assembly is linked with the lower transverse beam; the functional test detection device is fixed on the functional test device support table, and the PCBA board is placed in the functional test detection device; the functional test detection device is used for performing functional test on the PCBA board, and the LED lamp panel is integrated on the PCBA board; and the photographing module is used for acquiring the image of the LED lamp panel.
[0007] In an implementation form of the first aspect, the lifting adjustment assembly comprises a positioning hole, a spring pin and a lifting column; the lifting column arranged on both sides of the rack is linked with the lower transverse beam; the locking of the positioning hole and the spring pin is adjusted, the lower transverse beam is pushed to drive the lifting columns on both sides of the rack to synchronously lift, and the height of the rack is adjusted; when the position of the positioning hole is adjusted, the spring pin is locked and fixed after being popped into the positioning hole, the lifting column in the lifting adjustment assembly is adjusted to make the photographing module be located at a suitable height.
[0008] In an implementation form of the first aspect, the functional test detection device is provided with a pressing module and a pressing rod; the pressing rod is pressed to drive the pressing module to move downward, and the pressing module presses the PCBA board downward to make the PCBA board be stable in the test position of the functional test detection device.
[0009] In an implementation form of the first aspect, a pulley handle is arranged on the top of the rack; the pulley handle is adjusted to drive the photographing module to be adjusted in position in front, back, left or right in the plane parallel to the plane on which the functional test support table is located, so that the photographing module is positioned directly above the LED lamp panel.
[0010] In one implementation of the first aspect, the LED light board integrated testing system further includes a triangular structural surface; the triangular structural surface is fixedly disposed on both sides of the top of the frame, and the triangular structural surface is connected to the lifting and adjusting assembly.
[0011] In one implementation of the first aspect, the photographing module includes an industrial camera and a light shield.
[0012] In one implementation of the first aspect, the light shield is funnel-shaped; the outer surface of the light shield is made of black acrylic material, and the inner surface is covered with black flocked cloth to reduce the light reflected from the inner wall of the light shield.
[0013] In one implementation of the first aspect, the LED light board and the PCBA board share the same power supply system and testing station.
[0014] In one implementation of the first aspect, the LED light board integrated testing system further includes a control module, which is connected to the imaging module via a network cable and is used to receive the LED light board image and perform visual analysis; the control module transmits the visual analysis results to a host computer for comparison and detection via a virtual serial port.
[0015] Secondly, this application provides an LED light board integration testing method, using the LED light board integration testing system described above. The method comprises: powering on the PCBA board of a functional testing equipment mounted on a functional testing equipment platform to initiate a functional testing process; driving a photographic module to acquire images of the illuminated LED light board on the PCBA board in response to an LED test trigger signal based on the functional testing process; uploading the acquired LED light board images to a control module; analyzing the LED light board images using the control module to obtain analysis results; comparing the analysis results with a preset standard range to obtain comparison results; and obtaining visual inspection results of the LED light board based on the comparison results.
[0016] As described above, the LED light board integrated testing system and method of this application achieves simultaneous completion of functional testing and optical inspection in the same workstation and during the same power-on testing process by deeply integrating the LED visual inspection module with the FCT testing system. This effectively eliminates the errors and omissions of traditional manual visual inspection, avoids process interruptions and efficiency losses caused by independent visual inspection workstations, and significantly improves overall testing efficiency and consistency. Attached Figure Description
[0017] Figure 1 The diagram shown is a structural schematic of the LED light board integrated testing system described in an embodiment of this application.
[0018] Figure 2 The diagram shown is a structural schematic of the lifting and adjusting assembly described in an embodiment of this application.
[0019] Figure 3 The diagram shown is a structural schematic of the pressure module described in an embodiment of this application.
[0020] Figure 4 The diagram shown is a structural schematic of the camera module described in an embodiment of this application.
[0021] Figure 5 The diagram shows a process schematic of the LED light board integration testing method described in the embodiments of this application.
[0022] Figure 6 The diagram shown is a structural schematic of the electronic device described in an embodiment of this application. Detailed Implementation
[0023] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.
[0024] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. Therefore, the drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.
[0025] In the complete production process of a Printed Circuit Board Assembly (PCBA), functional verification after soldering and assembly is a crucial step in ensuring product quality and reliability. This step is typically accomplished through Functional Circuit Test (FCT). The essence of FCT is to provide a simulated or real working environment for the Unit Under Test (UUT). By applying appropriate input signals and monitoring its output response, it comprehensively verifies whether all its design functions are implemented correctly, including voltage, current, timing, communication protocols, and various logic functions. For many circuit boards containing human-machine interface indicators or status displays, LED boards are a key component. The correctness of their display status (such as color, brightness, and lighting sequence) directly reflects the operating status of the underlying circuitry. Therefore, testing the LED boards is an indispensable part of the FCT process.
[0026] However, in existing production processes, there are two traditional methods for inspecting LED light panels in the FCT process that are difficult to balance in terms of efficiency and accuracy, constituting a technical bottleneck that urgently needs to be addressed in this field. The first method is manual visual inspection, where the operator directly observes the display status of the LED light panel during FCT testing and compares it with the expected results. This method heavily relies on human subjective judgment and sustained attention. In long-term, highly repetitive work environments, it is prone to misjudgment and missed detection due to visual fatigue, distraction, or individual differences. The consistency and accuracy of the inspection are difficult to guarantee, and objective data recording and traceability are impossible. The second method is to introduce independent dedicated visual inspection equipment. That is, an additional visual inspection station is set up outside the FCT testing station. The LED light panel or related modules are first placed under this equipment for inspection, and only those that pass the inspection are assembled or returned to the FCT testing process. While this approach improves the automation and objectivity of testing, it also has significant drawbacks: it disrupts the complete testing process, increases the complexity of material handling, repeated loading and unloading, and multi-station collaboration, which not only significantly reduces overall testing efficiency and extends product production cycle time, but also leads to additional equipment investment costs, fixture costs, and site occupancy costs, thus increasing the overall cost of the production line.
[0027] In summary, existing technologies either sacrifice inspection accuracy and consistency to maintain superficial process continuity (manual visual inspection), or prioritize inspection accuracy while sacrificing process efficiency and increasing costs (independent visual inspection). Therefore, the industry urgently needs an innovative solution that can seamlessly and efficiently integrate high-precision LED visual inspection capabilities into the standard FCT testing process. This would enable simultaneous completion of circuit function verification and optical indicator inspection at the same workstation and within the same power-on test cycle, thereby significantly improving testing efficiency and reducing overall production costs while ensuring inspection quality.
[0028] To address at least the aforementioned issues, the following embodiments of this application provide an LED light board integration testing system and method.
[0029] The technical solutions in the embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0030] Figure 1 The diagram shown is a structural schematic of an LED light board integrated testing system according to an embodiment of this application. Figure 1 As shown, the LED light board integrated testing system includes: a frame 1, a lifting and adjusting assembly 100, a lower transverse beam 16, a functional testing equipment support platform 6, and a photography module 4.
[0031] The photographing module 4 is located on the middle crossbeam at the top of the frame 1, and the functional testing equipment support platform 6 is located at the bottom of the frame. The middle crossbeam at the top of the frame is parallel to the plane where the functional testing equipment support platform 6 is located. The lifting adjustment component 100 is fixedly connected to the bottom of the frame and is symmetrically arranged on both sides of the frame. The lower transverse beam 16 is connected to both sides of the frame, and the lifting adjustment component 100 is linked with the lower transverse beam 16. A functional testing and detection device 7 is fixed on the functional testing and detection device 6. A PCBA (Printed Circuit Board Assembly) board 8 is placed inside the functional testing and detection device 7. The functional testing and detection device 7 is used to perform functional testing on the PCBA board 8. An LED light board 11 is integrated on the PCBA board. The photographing module is used to acquire images of the LED (Light Emitting Diode) light board.
[0032] For example, the functional testing equipment is an FCT (Functional Circuit Test) testing equipment. When the FCT testing equipment is powered on, it can detect various signals on the PCBA board. The functional testing equipment platform is used to hold the entire FCT testing equipment, which includes the PCBA board under test, a pin board, a test mainboard, a switch control module, and a housing. An LED light board is integrated into the PCBA board under test as part of it, and the LED light board 11 shares the same power supply system and test station with the PCBA board 8. The FCT testing equipment powers on the test mainboard and supplies power to various parts of the PCBA board under test through the switch control modules to detect whether the functions of each part of the PCBA board are intact. The LED light board is detected by a vision inspection system. After the functional test on the PCBA board is powered on, a vision test of the LED light board is triggered. By integrating the LED light board test into the functional test of the PCBA board, the testing efficiency is significantly improved compared to a separate LED light board testing equipment.
[0033] Please continue reading. Figure 1 The LED light board integrated testing system also includes a triangular structural surface 15; the triangular structural surface 15 is fixedly installed on both sides of the top of the frame, and the triangular structural surface 15 is connected to the lifting adjustment assembly 100.
[0034] Specifically, the upper part of both sides of the frame consists of two triangular structural surfaces, and the lower part consists of a lower transverse beam and a lifting adjustment assembly. The lower transverse beam is connected to both sides of the frame, the triangular structural surfaces are fixedly connected to the top of the frame, and the lifting adjustment assembly is fixedly connected to the bottom of the frame.
[0035] Figure 2 The diagram shown is a structural schematic of a lifting adjustment component according to an embodiment of this application. Figure 2 As shown, the lifting adjustment assembly 100 includes a positioning hole 18, a spring pin 17, and a lifting column 2; the lifting columns 2 located on both sides of the frame are linked with the lower transverse beam 16; by adjusting the locking of the positioning hole 18 and the spring pin 17, the lower transverse beam 16 is pushed to drive the lifting columns 2 on both sides of the frame to rise and fall synchronously, so as to adjust the height of the frame 1; when adjusted to the position of the positioning hole 18, the spring pin 17 springs into the positioning hole 18 and self-locks, and the lifting columns 2 in the lifting adjustment assembly 100 are adjusted so that the imaging module 4 is at a suitable height.
[0036] For example, the lifting column 2 is a manually operated lifting column, capable of self-locking to prevent the top of the rack from falling. The lifting column is mounted on the rack 1, and the manual lifting column slides up and down on both sides of the rack, adjusting the height of the entire rack 1 and causing the entire rack to rise or fall, bringing the imaging module on the rack closer to the PCBA board being tested. The lifting columns on both sides of the rack are linked to the lower transverse beam. When the positioning hole is released and the lower transverse beam is pushed down or up, the spring pin moves up and down relative to the bottom of the rack, moving the lower transverse beam to the appropriate position, and then the positioning hole self-locks.
[0037] Please see Figure 1 and 3 The functional testing and inspection equipment 7 is equipped with a pressing module 10 and a pressure bar 9. Pressing the pressure bar 9 drives the pressing module 10 to move downward, and the pressing module 10 presses down on the PCBA board 8, so that the PCBA board 8 is stable in the test position of the functional testing and inspection equipment 7.
[0038] Figure 4 The diagram shown is a structural schematic of the camera module in one embodiment of this application. Figure 4 As shown, a pulley handle 12 is provided on the top of the frame; adjusting the pulley handle 12 causes the imaging module 4 to be adjusted forward, backward, left, or right in a plane parallel to the functional test support platform 6, so that the imaging module 4 is positioned directly above the LED light panel 11. The up-down and left-right positions of the imaging module can be adjusted by the pulley handle 12 on the frame, so that the imaging module 4 can be matched with different functional test and detection equipment 7.
[0039] Please continue reading. Figure 4 The imaging module 4 includes an industrial camera 13 and a light shield 14. The light shield 14 is funnel-shaped; its exterior is made of black acrylic, and its interior is lined with black flocked fabric to reduce light reflection from the inner wall of the light shield 14. The industrial camera is equipped with a funnel-shaped light shield, and the exterior of the light shield is made of black acrylic, which reduces its weight and further reduces the burden on the frame. The black flocked fabric lining the inside of the light shield reduces light reflection from the inner wall of the light shield.
[0040] In some embodiments, using an LED light board integrated testing system to perform functional testing on a PCBA board and integrate LED light board visual inspection includes three steps: system structure initialization, adaptation and adjustment, test execution and positioning, and integrated inspection.
[0041] The system structure initialization and adaptation adjustment includes coarse adjustment of the overall rack height based on the external dimensions of the specific FCT testing equipment and the physical position of the LED light board on the PCBA under test. The lifting adjustment components are adjusted; these components are symmetrically distributed on both sides of the rack, each side containing a manual lifting column, spring pins, and positioning holes. The operator simultaneously engages the spring pins and positioning holes on both sides, and applies a thrust to the lower transverse beam connecting the two lifting columns. This thrust is synchronously transmitted to the lifting columns on both sides through the lower transverse beam, driving the lifting columns to slide vertically along the rack in a synchronized manner. The top of the rack is rigidly connected to the lifting columns via a triangular structural surface. The lifting of the lifting columns directly raises or lowers the entire rack and the imaging module on top of the rack. If the current rack height allows the imaging module on top of the rack to be within its working range (i.e., the imaging module can view the area under test on the functional testing equipment's platform), then pushing the lifting columns stops. The control of the spring pin is released, and the built-in spring force drives the spring pin to automatically spring into the currently aligned positioning hole 18, achieving self-locking and preventing fall, thus locking the frame at the current height. Through pure mechanical linkage and self-locking, the initial adaptation to different equipment heights is completed, ensuring the rigidity and stability of the system, and the triangular structure significantly enhances the resistance to deformation of the top of the frame during load-bearing and subsequent fine-tuning.
[0042] After adjusting the rack height, position the imaging module to ensure its field of view accurately covers the LED light panel on the PCBA board under test. Adjust the pulley handle on the top of the rack to move the imaging module freely within a plane parallel to the platform of the functional testing equipment below. Adjusting the pulley handle allows for precise micro-translation of the imaging module in the forward, backward, left, and right directions. During adjustment, the real-time viewfinder of the imaging module serves as visual feedback, allowing observation of the relative position of its field of view center to the LED light panel area. Once it is confirmed that the industrial camera lens is precisely aligned above the LED light panel, and the opening of the funnel-shaped light shield completely covers the tested area without mechanical interference, tighten the locking components of the pulley handle to fix the imaging module in place. The outer black acrylic and inner black flocked fabric structure of the light shield effectively isolates stray ambient light and prevents interference from reflections from the inner wall, providing excellent preparation for obtaining high-quality LED inspection images.
[0043] After mechanical and optical positioning is completed, the integrated testing phase begins. The FCT testing equipment, with the PCBA board to be tested mounted on it, is placed on the functional testing equipment's support platform. The pressing bar drives the downward pressing module to move downwards, thus pressing the PCBA board firmly from above, ensuring stable electrical contact and no positional shift during testing, and securing it securely in the testing position. After the pressing and fixing is complete, the integrated testing program is started, powering on the FCT testing equipment and executing a preset functional test sequence on the PCBA board, verifying the circuit functions on the PCBA board item by item, except for the LED light board. When the test logic reaches the LED light board detection, the system automatically triggers a control signal, and the industrial camera captures an image the instant the LED light board is illuminated.
[0044] In one embodiment of this application, the LED light board integrated testing system further includes a control module, which is part of the LED light board visual inspection system. The control module is connected to the image-taking module 4 via a network cable 5 and is used to receive the LED light board image and perform visual analysis. The control module transmits the visual analysis results to the host computer for comparison and detection via a virtual serial port.
[0045] For example, when testing LED light boards and PCBA boards, the functional testing equipment is first fixed on the functional testing equipment platform on the rack. The PCBA board is placed in the FCT testing equipment, and the pressing bar drives the pressing module to press and fix the PCBA board. The manual lifting column on the rack is adjusted to move the imaging module to a suitable height. The up, down, left, and right positions of the pulley handle on the rack are adjusted to accurately position the imaging module directly above the LED light board. The imaging module transmits the captured image of the LED light board to the control module via a network cable. The control module analyzes the LED light board image to obtain the LED light board pattern analysis result, and transmits the analysis result to the host computer software through a virtual serial port. The host computer software then outputs the test result of the LED light board.
[0046] In summary, the LED light board integrated testing system of this application integrates the LED light board onto the PCBA board to form a complete hardware system. When the PCBA board is powered on and signals are received for FCT functional testing, the test program automatically sends test commands to the LEDs. This system is compatible with the detection positions of light boards from different models, eliminating the need for separate visual inspection of the LED light board. By integrating the LED light board into the FCT testing process, the repetitive steps of first testing the LED light board, then assembling the LED light board and PCBA board, and finally testing the entire board are eliminated, saving testing time and improving production efficiency. The addition of a light shield reduces the impact of external natural light sources on camera imaging, lowers the requirements for the testing environment, and effectively controls overall costs. Utilizing the testing system of this application improves detection accuracy while employing the same power supply system and FCT testing equipment. When the PCBA board is powered on, the software sequentially tests each analog signal and digital circuit of the PCBA board at the same testing station and during the same power-on process, subsequently triggering the LED light board test, achieving efficient and accurate testing of the LED light board.
[0047] This application also provides an integrated testing method for LED light boards. Figure 5 This is a schematic diagram illustrating the process of an LED light board integration testing method according to an embodiment of this application. Figure 5 As shown, the LED light board integration test method includes the following steps S11 to S16.
[0048] Step S11: Power on the PCBA board of the functional test equipment mounted on the functional test equipment platform to start the functional test process.
[0049] Step S12: Based on the functional test process, in response to the LED test trigger signal, drive the camera module to capture images of the LED light board lit on the PCBA board.
[0050] Step S13: Upload the acquired LED light panel image to the control module.
[0051] Step S14: Analyze the LED light panel image using the control module to obtain analysis results.
[0052] Step S15: Compare the analysis results with a preset standard range to obtain the comparison results.
[0053] Step S16: Obtain the visual inspection result of the LED light panel based on the comparison result.
[0054] For example, the display of the LED light panel is controlled by a computer. An industrial camera captures images of the LED light panel, and the color and brightness information of the LEDs is transmitted back to the control module on the personal computer. Vision software is used to analyze the images, and the analyzed values are transmitted to the host computer. The analyzed values are compared with preset values. If the analyzed values are within a reasonable range, the LED light panel passes the test, the product is qualified, and the result is displayed on the host computer screen. If the brightness and color returned by the LED light panel are not within a reasonable range, the product is unqualified, and the host computer screen displays "FAIL"; if the brightness and color returned by the LED light panel are within a reasonable range, the product is qualified, and the host computer screen displays "PASS".
[0055] The scope of protection of the LED light board integration testing method described in this application is not limited to the execution order of the steps listed in this embodiment. Any solution implemented by adding, subtracting, or replacing steps in the prior art based on the principles of this application is included within the scope of protection of this application.
[0056] However, the implementation device of the LED light board integration testing method described in this application includes, but is not limited to, the structure of the LED light board integration testing system listed in this embodiment. Any structural modifications and substitutions of the prior art made based on the principles of this application are included within the protection scope of this application.
[0057] In the embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, or methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of modules / units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules or units may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection of apparatuses or modules or units may be electrical, mechanical, or other forms.
[0058] The modules / units described as separate components may or may not be physically separate. The components shown as modules / units may or may not be physical modules; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules / units can be selected to achieve the objectives of the embodiments of this application, depending on actual needs. For example, the functional modules / units in the various embodiments of this application may be integrated into one processing module, or each module / unit may exist physically separately, or two or more modules / units may be integrated into one module / unit.
[0059] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.
[0060] This application also provides a computer-readable storage medium storing a computer program. When executed by a processor, this computer program implements the LED light board integration testing method provided in this application. Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing a processor. The program can be stored in a computer-readable storage medium, which is a non-transitory medium, such as random access memory, read-only memory, flash memory, hard disk, solid-state hard disk, magnetic tape, floppy disk, optical disk, and any combination thereof. The above storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., digital video disc (DVD)), or a semiconductor medium (e.g., solid-state disk (SSD)).
[0061] This application embodiment may also provide an electronic device. Figure 6 The diagram shown is a structural schematic of an electronic device 200 according to an embodiment of this application. Figure 6 As shown, in this embodiment, the electronic device 200 includes a memory 201 and a processor 202.
[0062] The memory 201 is used to store computer programs. In some possible implementations, the memory 201 may include various media capable of storing program code, such as ROM, RAM, magnetic disk, USB flash drive, memory card, or optical disk.
[0063] In this embodiment, memory 201 may include a computer system readable medium in the form of volatile memory, such as RAM and / or cache memory. Electronic device 200 may further include other removable / non-removable, volatile / non-volatile computer system storage media. Memory 201 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of this application.
[0064] The processor 202 is connected to the memory 201 and is used to execute the computer program stored in the memory 201 so that the electronic device 200 performs the LED light board integration test method.
[0065] For example, processor 202 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc. In other embodiments, processor 202 may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.
[0066] In some implementations, the electronic device 200 provided in this application embodiment may further include a display 203. The display 203 is communicatively connected to the memory 201 and the processor 202, and is used to display a graphical user interface (GUI) related to the LED light board integration test method.
[0067] In this embodiment, the display 203 may include a display screen (display panel). In some implementations, the display panel may be configured using a liquid crystal display (LCD), an organic light-emitting diode (OLED), or other similar forms. Furthermore, the display 203 may also be a touch panel (touchscreen, touch screen), which may include a display screen and a touch-sensitive surface. When the touch-sensitive surface detects a touch operation on or near it, it transmits the information to the processor 202 to determine the type of touch event. Subsequently, the processor 202 provides corresponding visual output on the display device based on the type of touch event.
[0068] The descriptions of the processes or structures corresponding to the above figures each have their own emphasis. For parts of a process or structure that are not described in detail, please refer to the relevant descriptions of other processes or structures.
[0069] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.
Claims
1. An integrated testing system for LED light boards, characterized in that, The LED light board integrated testing system includes: a frame, a lifting and adjusting assembly, a lower transverse beam, a functional testing equipment support platform, and a photography module; The camera module is located on the middle crossbeam at the top of the frame, and the functional testing equipment support platform is located at the bottom of the frame. The middle crossbeam at the top of the frame is parallel to the plane on which the functional testing equipment support platform is located. The lifting and adjusting assembly is fixedly connected to the bottom of the frame. The lifting and adjusting assembly is symmetrically arranged on both sides of the frame. The lower transverse beam is connected to both sides of the frame. The lifting and adjusting assembly is linked with the lower transverse beam. The functional testing equipment is fixed on the platform of the functional testing equipment. A PCBA board is placed inside the functional testing equipment. The functional testing equipment is used to perform functional tests on the PCBA board. An LED light board is integrated on the PCBA board. The imaging module is used to acquire images of the LED light board.
2. The LED light board integrated testing system according to claim 1, characterized in that, The lifting adjustment assembly includes a positioning hole, a spring pin, and a lifting column; The lifting columns located on both sides of the frame are linked to the lower transverse beam; Adjusting the locking of the positioning hole and the spring pin, pushing the lower transverse beam to drive the lifting columns on both sides of the frame to rise and fall synchronously, thereby adjusting the height of the frame; When adjusted to the position of the positioning hole, the spring pin springs into the positioning hole and locks itself in place. Adjust the lifting column in the lifting adjustment assembly to position the camera module at a suitable height.
3. The LED light board integrated testing system according to claim 1, characterized in that, The functional testing equipment is equipped with a pressure module and a pressure bar. Pressing the pressure bar drives the pressing module to move downwards, and the pressing module presses down on the PCBA board, making the PCBA board stable in the test position of the functional testing equipment.
4. The LED light board integrated testing system according to claim 1, characterized in that, The top of the frame is equipped with a pulley handle; Adjust the pulley handle to move the camera module forward, backward, left, or right in a plane parallel to the functional test platform, so that the camera module is positioned directly above the LED light panel.
5. The LED light board integrated testing system according to claim 1, characterized in that, The LED light board integrated testing system also includes a triangular structural surface; The triangular structural surfaces are fixedly installed on both sides of the top of the frame, and the triangular structural surfaces are connected to the lifting and adjusting components.
6. The LED light board integrated testing system according to claim 1, characterized in that, The imaging module includes an industrial camera and a lens hood.
7. The LED light board integration testing system according to claim 6, characterized in that, The light shield is funnel-shaped; The exterior of the light shield is made of black acrylic material, and the interior is lined with black flocked fabric to reduce light reflection from the inner wall of the light shield.
8. The LED light board integrated testing system according to claim 1, characterized in that, The LED light board and the PCBA board share the same power supply system and testing station.
9. The LED light board integrated testing system according to claim 1, characterized in that, The LED light board integrated testing system also includes a control module, which is connected to the imaging module via a network cable. The control module is used to receive the LED light board image and perform visual analysis. The control module transmits the visual analysis results to the host computer for comparison and detection via a virtual serial port.
10. A method for testing integrated LED light boards, using the LED light board integration testing system as described in claims 1-9, characterized in that, The LED light board integration test method includes: Power on the PCBA board of the functional test equipment, which has a PCBA board mounted on the functional test equipment platform, to start the functional test process; Based on the aforementioned functional test process, in response to the LED test trigger signal, the camera module is driven to capture images of the LED light board lit on the PCBA board. The acquired LED light panel images are uploaded to the control module; The control module is used to analyze the LED light panel image to obtain analysis results; The analysis results are compared with a preset standard range to obtain the comparison results; The visual inspection results of the LED light panel are obtained based on the comparison results.