Lamp panel module inspection system and method

Abstract

The application discloses a lamp panel module inspection system and method. The system comprises a lamp panel module, a receiving device and an analysis device. The lamp panel module is configured to determine inspection data. The receiving device is configured to acquire the inspection data transmitted by the lamp panel module through a target data transmission channel when receiving an inspection instruction, and send the inspection data to the analysis device. The target data transmission channel comprises one of the following: a first data transmission channel for transmitting a display signal from the receiving device to the lamp panel module, and a second data transmission channel from the lamp panel module to the receiving device. The analysis device is configured to perform inspection on the lamp panel module according to the inspection data. The application solves the technical problem that the lamp panel module needs to be configured with an additional micro control unit and related circuits to realize the inspection function in the related art.

Description

Technical Field

[0001] This application relates to the field of light panel display technology, and more specifically, to a light panel module inspection system and method. Background Technology

[0002] In related technologies, LED module inspection mainly involves designing and soldering an MCU (Micro Controller Unit) and related circuits onto the module. During the inspection process, the inspection data output by the driver chip is collected, packaged, and uploaded to the receiving card and control system. Finally, the data is collected in the software for data processing and analysis to obtain the number of defective pixels in the entire cabinet or display screen.

[0003] However, in recent years, due to changes in the semiconductor industry, the price of MCU materials has risen, making it difficult to control the cost of designing and soldering MCUs and related circuits on LED modules. In addition, as the pixel pitch of LED screens becomes smaller and smaller, the PCB (Printed Circuit Board) layout of the modules becomes more compact, leaving insufficient space to solder MCUs and related circuits, making it impossible to realize the inspection function of LED modules.

[0004] There is currently no effective solution to the above problems. Summary of the Invention

[0005] This application provides a lamp board module inspection system and method to at least solve the technical problem in the related art that lamp board modules need to be configured with additional microcontroller units and related circuits to realize the inspection function.

[0006] According to one aspect of the embodiments of this application, a light panel module inspection system is provided, comprising: a light panel module, a receiving device, and an analysis device, wherein: the light panel module is used to determine inspection data; the receiving device is used to, upon receiving an inspection instruction, acquire the inspection data transmitted by the light panel module through a target data transmission channel, and send the inspection data to the analysis device, wherein the target data transmission channel includes one of the following: a first data transmission channel for transmitting display signals from the receiving device to the light panel module, and a second data transmission channel from the light panel module to the receiving device; the analysis device is used to perform inspection on the light panel module based on the inspection data.

[0007] Optionally, the system further includes: a first signal power amplifier chip, located in the first data transmission channel, for receiving the display signal sent by the receiving device and sending the display signal to the lamp panel module.

[0008] Optionally, the target data transmission channel is the first data transmission channel; the lamp panel module includes: multiple driving circuits, a second signal power amplifier chip, and a third signal power amplifier chip, wherein the multiple driving circuits include multiple sets of cascaded driving circuits, the second signal power amplifier chip is used to input the display signal to each set of cascaded driving circuits, the output signal of the output pin of the last driving circuit in each set of cascaded driving circuits is the inspection data, and the third signal power amplifier chip is used to send the inspection data to the receiving device through the first data transmission channel; the system further includes: a first enable control chip, used to control the second signal power amplifier chip to turn on and the third signal power amplifier chip to turn off when the receiving device sends the display signal to the lamp panel module, and to control the second signal power amplifier chip to turn off and the third signal power amplifier chip to turn on when the lamp panel module sends the inspection data to the receiving device.

[0009] Optionally, the target data transmission channel is the first data transmission channel; the lamp board module includes: multiple driving circuits and a second signal power amplifier chip, wherein the second signal power amplifier chip is used to input the display signal to each of the driving circuits, the input signal of the input pin of each driving circuit is the inspection data, and the second signal power amplifier chip is also used to send the inspection data to the receiving device through the first data transmission channel.

[0010] Optionally, the first signal power amplifier chip is further configured to receive a direction control signal sent by the receiving device and adjust the data transmission direction of the first data transmission channel according to the direction control signal. When the lamp board module sends the inspection data to the receiving device, the first signal power amplifier chip is configured to receive the inspection data sent by the lamp board module and send the inspection data to the receiving device.

[0011] Optionally, the target data transmission channel is the second data transmission channel, which includes the signal input channel of the receiving device; the lamp board module includes: multiple driving circuits, a second signal power amplifier chip, and a second enable control chip; the system further includes: a third enable control chip; wherein, the multiple driving circuits include multiple sets of cascaded driving circuits, the second signal power amplifier chip is used to input the display signal to each set of cascaded driving circuits, the output signal of the output pin of the last driving circuit in each set of cascaded driving circuits is the inspection data, the second enable control chip is used to poll each set of inspection data according to the enable control signal sent by the receiving device, and sequentially send each set of inspection data to the third enable control chip, and the third enable control chip is used to sequentially send each set of inspection data to the receiving device.

[0012] Optionally, the number of lamp board modules is multiple, and the multiple lamp board modules are cascaded. The system further includes: an output chip, configured to, in response to an enable signal sent by an input chip, send a first signal output by the last lamp board module in the cascaded multiple lamp board modules to a first shift latch chip; the first shift latch chip, configured to shift the first signal to obtain a second signal, and input the second signal to the first lamp board module in the cascaded multiple lamp board modules; a second shift latch chip, configured to shift the third signal output by the last lamp board module in the cascaded multiple lamp board modules to obtain the inspection data, and send the inspection data to the input chip; the input chip, configured to send the inspection data to the receiving device through the target data transmission channel.

[0013] Optionally, the input chip is further configured to receive the display signal sent by the receiving device through the first data transmission channel. The system further includes: a fourth signal power amplifier chip, configured to receive the display signal forwarded by the input chip and input the display signal to the first lamp board module among the cascaded plurality of lamp board modules; and a fifth signal power amplifier chip, configured to send the first signal output by the last lamp board module among the cascaded plurality of lamp board modules to the output chip.

[0014] According to another aspect of the embodiments of this application, a method for inspecting a light panel module is also provided, comprising: in response to a received inspection instruction, acquiring inspection data transmitted by the light panel module through a target data transmission channel, wherein the target data transmission channel includes one of the following: a first data transmission channel for transmitting a display signal from a receiving device to the light panel module, and a second data transmission channel from the light panel module to the receiving device; transmitting the inspection data to an analysis device, wherein the analysis device is used to perform inspection on the light panel module based on the inspection data.

[0015] According to another aspect of the embodiments of this application, a receiving device is also provided, including: a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the above-described lamp panel module inspection method through the computer program.

[0016] In this embodiment, the lamp panel module inspection system mainly includes: a lamp panel module, a receiving device, and an analysis device. The lamp panel module is used to determine inspection data. The receiving device, upon receiving an inspection command, acquires the inspection data transmitted by the lamp panel module through a target data transmission channel and sends the inspection data to the analysis device. The analysis device performs inspection on the lamp panel module based on the inspection data. This solution directly utilizes the first data transmission channel through which the receiving device sends display signals to the lamp panel module as the target data transmission channel to return the inspection data. Alternatively, a second data transmission channel can be constructed by leading out a signal input channel from the receiving device to return the inspection data. This eliminates the need for additional microcontroller units and related circuits; simply using a common chip enables rapid data return, thus solving the technical problem in related technologies where lamp panel modules require additional microcontroller units and related circuits to perform inspection functions. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of a lamp panel module inspection system according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the feedback of inspection data of a light panel module according to an embodiment of this application;

[0020] Figure 3 This is a schematic diagram illustrating the feedback of inspection data from another light panel module according to an embodiment of this application;

[0021] Figure 4This is a schematic diagram illustrating the feedback of inspection data from another light panel module according to an embodiment of this application;

[0022] Figure 5 This is a schematic diagram of the feedback of inspection data in a cascaded lamp board module according to an embodiment of this application;

[0023] Figure 6a This is a partial schematic diagram of a lamp board circuit according to an embodiment of this application;

[0024] Figure 6b This is a partial schematic diagram of a lamp board circuit according to an embodiment of this application;

[0025] Figure 6c This is a partial schematic diagram of a lamp board circuit according to an embodiment of this application;

[0026] Figure 7 This is a flowchart illustrating a method for inspecting a light panel module according to an embodiment of this application. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] To better understand the embodiments of this application, some nouns or terms that appear in the description of the embodiments of this application are translated and explained as follows:

[0030] Module inspection: This function detects chip voltage and collects and analyzes the output data of the drive circuit to present the location and number of defective points in the module.

[0031] Example 1

[0032] To address the technical problem that lamp panel modules require additional microcontroller units and related circuits to perform inspection functions in related technologies, this application proposes a new approach for lamp panel module inspection data feedback. By controlling the direction of the signal driving chip, the data transmission channel that originally transmitted display signals from the receiving device to the lamp panel module can be used to achieve rapid feedback of inspection data.

[0033] Specifically, this application provides a lamp panel module inspection system, one optional structure of which is as follows: Figure 1 As shown, the system includes at least: a light panel module 11, a receiving device 12, and an analysis device 13, wherein:

[0034] Light panel module 11 is used to determine inspection data;

[0035] The receiving device 12 is used to acquire the inspection data transmitted by the lamp panel module through the target data transmission channel when it receives the inspection instruction, and send the inspection data to the analysis device. The target data transmission channel includes one of the following: a first data transmission channel for transmitting the display signal from the receiving device to the lamp panel module, and a second data transmission channel from the lamp panel module to the receiving device.

[0036] Analysis device 13 is used to inspect the lamp panel module based on the inspection data.

[0037] The light panel module can be an LED module; the receiving device is usually a receiving card, which transmits display signals and control signals to the LED module to control the LED module display. The display signals are mainly RGB signals, and the control signals include DCLK (dot clock signal), GCLK (global clock signal), etc.; signal transmission can use common TTL (Transistor-Transistor Logic) level signal transmission method, or LVDS (Low Voltage Differential Signaling) transmission method, or data transmission based on CPLD (Complex Programmable Logic Device); the analysis device can be a host computer or other terminal device running analysis software, which can find the location and number of bad pixels in the LED module by analyzing the inspection data.

[0038] This application can use the first data transmission channel for transmitting RGB signals to return inspection data, or it can lead out an input signal channel from the receiving card to establish a second data transmission channel from the LED module to the receiving card to return inspection data. The following describes the functions performed by each part of the LED module inspection system in conjunction with several optional implementation methods. It should be noted that the following implementation methods are only examples, and the various selected logic devices do not limit the actual structure of the system.

[0039] Optionally, in the first embodiment, the first data transmission channel is used as the target data transmission channel. The system further includes: a first signal power amplifier chip, located in the first data transmission channel, used to receive display signals sent by the receiving device and send the display signals to the LED module; optionally, the first signal power amplifier chip is also used to receive control signals sent by the receiving device and send the control signals to the LED module as well. The first signal power amplifier chip can be a 74HC245 chip, which is usually located on the HUB adapter board and connected to the receiving card and the LED module.

[0040] The LED module includes multiple driver circuits, a second signal power amplifier chip, and a third signal power amplifier chip. These driver circuits comprise multiple cascaded driver circuits. The second signal power amplifier chip inputs the display signal to each cascaded driver circuit. The output signal of the last driver circuit in each cascaded driver circuit is the inspection data. The third signal power amplifier chip transmits the inspection data to the receiving device via a first data transmission channel. Alternatively, the second and third signal power amplifier chips can be 74HC245 chips, which can be used for signal isolation to prevent interference between signals from the receiving card to the LED module and signals from the LED module back to the receiving card.

[0041] The system also includes: a first enable control chip, used to control the second signal power amplifier chip to turn on and the third signal power amplifier chip to turn off when the receiving device sends a display signal to the lamp board module; and to control the second signal power amplifier chip to turn off and the third signal power amplifier chip to turn on when the lamp board module sends inspection data to the receiving device. The first enable control chip can be a 74HC4052 chip, which is usually also located on the HUB adapter board.

[0042] The first signal power amplifier chip is also used to receive the direction control signal sent by the receiving device and adjust the data transmission direction of the first data transmission channel according to the direction control signal. When the lamp board module sends inspection data to the receiving device, the first signal power amplifier chip is used to receive the inspection data sent by the lamp board module and send the inspection data to the receiving device.

[0043] Figure 2A schematic diagram of optional lamp board module inspection data feedback is shown, in which 74HC245(1) is the first signal power amplifier chip, 74HC245(2) is the second signal power amplifier chip, 74HC245(3) is the third signal power amplifier chip, 74HC4052 is the first enable control chip, IC is the cascaded drive circuit, RGB is the display signal, DIR is the direction control signal, the control signals are DCLK, GCLK signals, etc., CODE-HUB is the control signal of 74HC4052, and OE is the enable control signal.

[0044] During normal transmission, the RGB signal channel of the receiving card is an output. 74HC4052 controls 74HC245(2) to be turned on and 74HC245(3) to be turned off. 74HC245(1) responds to the DIR signal from the receiving card, receives the RGB signal and control signal and sends them to 74HC245(2), which then sends them to the cascaded driver IC. After receiving the inspection command, the RGB signal channel of the receiving card becomes an input. 74HC4052 controls 74HC245(2) to be turned off and 74HC245(3) to be turned on. 74HC245(3) sends the output signal of the last driver IC in each group as inspection data to 74HC245(1). 74HC245(1) responds to the DIR signal from the receiving card and sends the inspection data to the receiving card through the RGB signal channel.

[0045] Alternatively, in the second embodiment, for certain special lamp board modules, such as the XM11202 module, the inspection data needs to be read from the register of the driver IC, that is, read from the data input pin of the driver IC, rather than from the output pin. The inspection data feedback can be achieved in the following way.

[0046] Specifically, the first data transmission channel is still used as the target data transmission channel. The system also includes a first signal power amplifier chip, located in the first data transmission channel, used to receive display signals sent by the receiving device and send the display signals to the LED module. Optionally, the first signal power amplifier chip is also used to receive control signals sent by the receiving device and send the control signals to the LED module as well. The first signal power amplifier chip can be a 74HC245 chip, which is usually located on the HUB adapter board and connected to the receiving card and the LED module.

[0047] The lamp board module includes multiple driver circuits and a second signal power amplifier chip. The second signal power amplifier chip is used to input display signals to each driver circuit. The input signal at the input pin of each driver circuit is inspection data. The second signal power amplifier chip is also used to send the inspection data to the receiving device through a first data transmission channel. A 74HC245 chip can be selected as the second signal power amplifier chip.

[0048] The first signal power amplifier chip is also used to receive the direction control signal sent by the receiving device and adjust the data transmission direction of the first data transmission channel according to the direction control signal. When the lamp board module sends inspection data to the receiving device, the first signal power amplifier chip is used to receive the inspection data sent by the lamp board module and send the inspection data to the receiving device.

[0049] Figure 3 A schematic diagram of optional lamp board module inspection data feedback is shown, wherein the lamp board module is an XM11202 module, 74HC245(1) is a first signal power amplifier chip, 74HC245(2) is a second signal power amplifier chip, IC is a driving circuit, RGB is a display signal, DIR is a direction control signal, and the control signals are DCLK, GCLK signals, etc.

[0050] During normal transmission, the RGB signal channel of the receiving card is an output. The 74HC245(1) responds to the DIR signal from the receiving card, receives the RGB signal and sends it to the 74HC245(2), and simultaneously sends control signals to each driver IC. The 74HC245(2) then sends the RGB signal to each driver IC. After receiving the inspection command, the RGB signal channel of the receiving card becomes an input. The 74HC245(2) sends the input signals of each driver IC as inspection data to the 74HC245(1). The 74HC245(1) responds to the DIR signal from the receiving card and sends the inspection data to the receiving card through the RGB signal channel. Among them, the XM11202 module is a row-column integrated chip, which can use A / B signals to control the transmission direction of the 74HC245(2).

[0051] Alternatively, in a third embodiment, a second data transmission channel can be constructed by introducing a signal input channel into the receiving device, and the second data transmission channel can be used as the target data transmission channel.

[0052] The system also includes: a first signal power amplifier chip, located in the first data transmission channel, used to receive display signals sent by the receiving device and send the display signals to the LED module; optionally, the first signal power amplifier chip is also used to receive control signals sent by the receiving device and send the control signals to the LED module as well. The first signal power amplifier chip can be a 74HC245 chip, which is usually located on the HUB adapter board and connected to the receiving card and the LED module.

[0053] The lamp board module includes multiple driver circuits, a second signal power amplifier chip, and a second enable control chip. The system also includes a third enable control chip. The multiple driver circuits include multiple cascaded driver circuits. The second signal power amplifier chip is used to input display signals to each cascaded driver circuit. The output signal of the last driver circuit in each cascaded driver circuit is the inspection data. The second enable control chip polls each set of inspection data according to the enable control signal sent by the receiving device, and sequentially sends each set of inspection data to the third enable control chip. The third enable control chip sequentially sends each set of inspection data to the receiving device. The second signal power amplifier chip can be a 74HC245 chip, and the second and third enable control chips can also be 74HC4052 chips, typically located on a HUB adapter board.

[0054] Figure 4 A schematic diagram of optional lamp board module inspection data feedback is shown. In this diagram, 74HC245(1) is the first signal power amplifier chip, 74HC245(2) is the second signal power amplifier chip, 74HC4052(1) is the second enable control chip, 74HC4052(2) is the third enable control chip, IC is the cascaded drive circuit, RGB is the display signal, and the control signals are DCLK, GCLK, etc. IN-Data is one signal input channel of the receiving card, used to transmit inspection data. Since the number of external pins of the receiving card is limited, it needs to share with other extended function pins to bring out multiple sets of CODE signals. Among them, CODE-HUB is the control signal of 74HC4052(2), and CODE-Module is the control signal of 74HC4052(1).

[0055] During normal transmission, 74HC245(1) receives RGB signals and control signals from the receiving card and sends them to 74HC245(2), which then sends them to the cascaded driver ICs. After receiving the inspection command, the receiving card controls 74HC4052(2) and 74HC4052(1) to cooperate with each other and use the output signal of the last driver IC in each group as the module's inspection data. This data is then transmitted back to the receiving card through the IN-Data channel. Since the IN-Data channel is a single channel, it can only transmit one group of data at a time and cannot transmit in parallel. Therefore, 74HC4052(2) and 74HC4052(1) need to cooperate to transmit the output signals of each group of driver ICs back to the receiving card in a polling manner.

[0056] Alternatively, in the fourth embodiment, considering that there may be multiple light board modules in actual applications, and multiple light board modules may be cascaded, special design is required for the data feedback channel. Data can be transmitted by means of the shifting characteristics of the driver IC, such as the following method to realize the inspection data feedback.

[0057] Specifically, the system also includes: an output chip, used to send a first signal output by the last lamp board module in a cascaded array of lamp board modules to a first shift latch chip in response to an enable signal sent by the input chip; a first shift latch chip, used to shift the first signal to obtain a second signal, and input the second signal to the first lamp board module in a cascaded array of lamp board modules; a second shift latch chip, used to shift the third signal output by the last lamp board module in a cascaded array of lamp board modules to obtain inspection data, and send the inspection data to the input chip; and an input chip, used to send the inspection data to a receiving device through a target data transmission channel. The process by which the input chip sends the inspection data to the receiving device can refer to the first three implementation methods.

[0058] Optionally, the input chip is also used to receive the display signal sent by the receiving device through the first data transmission channel. The system further includes: a fourth signal power amplifier chip, used to receive the display signal forwarded by the input chip and input the display signal to the first lamp board module among the cascaded multiple lamp board modules; and a fifth signal power amplifier chip, used to send the first signal output by the last lamp board module among the cascaded multiple lamp board modules to the output chip.

[0059] The input and output chips need to have enable control interfaces to adjust the data transmission direction. The first and second shift latch chips can be selected from 74HC126 chips, and the fourth and fifth signal power amplifier chips can be selected from 74HC245 chips.

[0060] Figure 5A schematic diagram of an optional cascaded lamp board module for feedback of inspection data is shown. J1-IN is the input chip, J1-OUT is the output chip, 74HC245(1) is the fourth signal power amplifier chip, 74HC245(2) is the fifth signal power amplifier chip, 74HC126(1) is the first shift latch chip, 74HC126(2) is the second shift latch chip, LED ICs (1~n) are multiple cascaded lamp board modules, and OE is the enable control signal.

[0061] During normal transmission, J1-IN controls 74HC245(1) and 74HC245(2) to turn on, and 74HC126(1) and 74HC126(2) to turn off. J1-OUT receives data. At this time, 74HC245(1) sends the RGB signal and control signal from the receiving card to LEDIC1, which is then cascaded through LED ICs (1~n) to LED ICn. LED ICn sends the output signal to 74HC245(2), which then transmits it to J1-OUT. During data return, J1-IN controls 74HC245(1) and 74HC245(2) to be off, and 74HC126(1) and 74HC126(2) to be on. J1-OUT sends data, 74HC126(1) shifts the signal from J1-OUT and sends it to LED IC1. The signal is then cascaded through LED ICs (1-n) to LED ICn. LED ICn sends its output signal to 74HC126(2), which shifts the signal to obtain inspection data and sends the inspection data to J1-IN. J1-IN then returns the data to the receiving card.

[0062] Figure 6a , Figure 6b , Figure 6c These are the hardware circuit diagrams corresponding to the lamp board in Example 4, wherein, Figure 6a This is a schematic diagram showing the input and output interfaces of the lamp board and the default port levels. Figure 6b This is a circuit diagram of the lamp board driver module. Figure 6c This is a schematic diagram of the inspection data feedback circuit.

[0063] In the above embodiments, through clever design, the first data transmission channel that sends display signals from the receiving device to the lamp board module is used to transmit inspection data back, or a second data transmission channel is constructed by leading out a signal input channel from the receiving device to transmit inspection data back. This saves additional data transmission channels and reduces customer connector and PCB routing costs. Using ordinary 74HC series logic chips instead of a separate MCU control circuit design reduces customer material costs and PCB layout and routing design difficulty. Since a separate MCU control circuit is saved, there is no need for separate programming or consideration of MCU program burning issues during mass production, which greatly reduces customer production costs and subsequent maintenance costs. At the same time, by utilizing RGB signals and FPGA signal processing capabilities, a parallel interface data transmission method is implemented, which can greatly improve data transmission efficiency and enhance user experience.

[0064] The embodiments of this application effectively solve the technical problem in the related art that the lamp board module needs to be configured with an additional microcontroller unit and related circuits in order to realize the inspection function.

[0065] Example 2

[0066] Based on the lamp panel module inspection system provided in Embodiment 1, this application provides a lamp panel module inspection method. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than that shown here.

[0067] Figure 7 This is a flowchart illustrating an optional lamp panel module inspection method according to an embodiment of this application, as shown below. Figure 1 As shown, the method includes at least steps S702-S704, wherein:

[0068] Step S702: In response to the received inspection command, obtain the inspection data transmitted by the lamp panel module through the target data transmission channel, wherein the target data transmission channel includes one of the following: a first data transmission channel for transmitting the display signal from the receiving device to the lamp panel module, and a second data transmission channel from the lamp panel module to the receiving device.

[0069] Step S704: The inspection data is transmitted to the analysis device, which is used to perform inspections on the lamp panel module based on the inspection data.

[0070] The light panel module can be an LED module; the receiving device is usually a receiving card, which transmits display signals and control signals to the LED module to control the LED module display. The display signals are mainly RGB signals, and the control signals include DCLK (dot clock signal), GCLK (global clock signal), etc.; signal transmission can use common TTL (Transistor-Transistor Logic) level signal transmission method, or LVDS (Low Voltage Differential Signaling) transmission method, or data transmission based on CPLD (Complex Programmable Logic Device); the analysis device can be a host computer or other terminal device running analysis software, which can find the location and number of bad pixels in the LED module by analyzing the inspection data.

[0071] The specific data return process has been described in detail in Example 1, and will not be repeated in this example.

[0072] In this embodiment, the receiving device, in response to a received inspection command, acquires the inspection data transmitted by the lamp panel module through the target data transmission channel, and transmits the inspection data to the analysis device. The analysis device then performs inspection on the lamp panel module based on the inspection data. Specifically, the first data transmission channel through which the receiving device sends display signals to the lamp panel module is used as the target data transmission channel to return the inspection data, or a second data transmission channel is constructed by extending a signal input channel from the receiving device to return the inspection data. This eliminates the need for additional microcontroller units and related circuits; common chips can be used to achieve rapid data return, thus solving the technical problem in related technologies where lamp panel modules require additional microcontroller units and related circuits to perform inspection functions.

[0073] Example 3

[0074] According to an embodiment of this application, a non-volatile storage medium is also provided, which includes a stored program, wherein the program controls the device where the non-volatile storage medium is located to execute the lamp panel module inspection method in embodiment 2 when it is running.

[0075] According to an embodiment of this application, a processor is also provided for running a program, wherein the program executes the lamp panel module inspection method in embodiment 2 during runtime.

[0076] According to an embodiment of this application, a receiving device is also provided, the receiving device including: a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the lamp panel module inspection method of embodiment 2 through the computer program.

[0077] Optionally, the program executes the following steps during runtime: in response to a received inspection command, it acquires the inspection data transmitted by the lamp panel module through a target data transmission channel, wherein the target data transmission channel includes one of the following: a first data transmission channel for transmitting display signals from the receiving device to the lamp panel module, and a second data transmission channel from the lamp panel module to the receiving device; the inspection data is transmitted to an analysis device, which performs inspection on the lamp panel module based on the inspection data.

[0078] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0079] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0080] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between units or modules may be electrical or other forms.

[0081] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0082] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0083] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard drive, magnetic disk, or optical disk.

[0084] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A lamp panel module inspection system, characterized in that, The system includes: a light panel module, a receiving device, and an analysis device, wherein: The light panel module is used to determine the inspection data; The receiving device is configured to acquire the inspection data transmitted through the target data transmission channel when it receives the inspection instruction, and send the inspection data to the analysis device, wherein the target data transmission channel includes a first data transmission channel for transmitting the display signal from the receiving device to the light panel module. The analysis device is used to perform inspections on the light panel module based on the inspection data; Wherein, when the target data transmission channel is the first data transmission channel; the lamp board module includes: multiple driving circuits, a second signal power amplifier chip and a third signal power amplifier chip, wherein the multiple driving circuits include multiple sets of cascaded driving circuits, the second signal power amplifier chip is used to input the display signal to each set of cascaded driving circuits, the output signal of the output pin of the last driving circuit in each set of cascaded driving circuits is the inspection data, and the third signal power amplifier chip is used to send the inspection data to the receiving device through the first data transmission channel.

2. The system according to claim 1, characterized in that, The system also includes: The first signal power amplifier chip is located in the first data transmission channel and is used to receive the display signal sent by the receiving device and send the display signal to the lamp board module.

3. The system according to claim 2, characterized in that, The system further includes: a first enable control chip, used to control the second signal power amplifier chip to turn on and the third signal power amplifier chip to turn off when the receiving device sends the display signal to the lamp panel module, and to control the second signal power amplifier chip to turn off and the third signal power amplifier chip to turn on when the lamp panel module sends the inspection data to the receiving device.

4. The system according to claim 3, characterized in that, The first signal power amplifier chip is also used to receive the direction control signal sent by the receiving device, and adjust the data transmission direction of the first data transmission channel according to the direction control signal. When the lamp board module sends the inspection data to the receiving device, the first signal power amplifier chip is used to receive the inspection data sent by the lamp board module and send the inspection data to the receiving device.

5. A lamp panel module inspection system, characterized in that, The system includes: a light panel module, a receiving device, and an analysis device, wherein: The light panel module is used to determine the inspection data; The receiving device is configured to acquire the inspection data transmitted through the target data transmission channel when it receives the inspection instruction, and send the inspection data to the analysis device, wherein the target data transmission channel includes a first data transmission channel for transmitting the display signal from the receiving device to the light panel module. The analysis device is used to perform inspections on the light panel module based on the inspection data; The lamp board module includes multiple driving circuits and a second signal power amplifier chip. The second signal power amplifier chip is used to input the display signal to each of the driving circuits. The input signal of the input pin of each driving circuit is the inspection data. The second signal power amplifier chip is also used to send the inspection data to the receiving device through the first data transmission channel.

6. The system according to claim 5, characterized in that, The system also includes: The first signal power amplifier chip is located in the first data transmission channel and is used to receive the display signal sent by the receiving device and send the display signal to the lamp board module.

7. The system according to claim 6, characterized in that, The first signal power amplifier chip is also used to receive the direction control signal sent by the receiving device, and adjust the data transmission direction of the first data transmission channel according to the direction control signal. When the lamp board module sends the inspection data to the receiving device, the first signal power amplifier chip is used to receive the inspection data sent by the lamp board module and send the inspection data to the receiving device.

8. A lamp panel module inspection system, characterized in that, The system includes: a light panel module, a receiving device, and an analysis device, wherein: The light panel module is used to determine the inspection data; The receiving device is configured to acquire the inspection data transmitted through the target data transmission channel when it receives the inspection instruction, and send the inspection data to the analysis device, wherein the target data transmission channel includes a first data transmission channel for transmitting the display signal from the receiving device to the light panel module. The analysis device is used to perform inspections on the light panel module based on the inspection data; The system comprises multiple light panel modules cascaded together. The system further includes: an output chip, configured to, in response to an enable signal sent by an input chip, send a first signal output by the last light panel module in the cascaded array to a first shift latch chip; the first shift latch chip, configured to shift the first signal to obtain a second signal and input the second signal to the first light panel module in the cascaded array; a second shift latch chip, configured to shift the third signal output by the last light panel module in the cascaded array to obtain the inspection data and send the inspection data to the input chip; and the input chip, configured to send the inspection data to the receiving device via the target data transmission channel.

9. The system according to claim 8, characterized in that, The input chip is also used to receive the display signal sent by the receiving device through the first data transmission channel, and the system further includes: The fourth signal power amplifier chip is used to receive the display signal forwarded by the input chip and input the display signal to the first lamp board module in the cascaded plurality of lamp board modules; The fifth signal power amplifier chip is used to send the first signal output by the last lamp board module in the cascaded plurality of lamp board modules to the output chip.

10. A method for inspecting a light panel module, characterized in that, The method, applied to the lamp panel module inspection system according to any one of claims 1-9, comprises: In response to a received inspection command, the inspection data transmitted by the light panel module through a target data transmission channel is acquired, wherein the target data transmission channel includes a first data transmission channel for transmitting display signals from a receiving device to the light panel module. The inspection data is transmitted to an analysis device, which is used to perform inspections on the light panel module based on the inspection data.

11. A receiving device, characterized in that, include: A memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the lamp panel module inspection method of claim 10 through the computer program.

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