LED large screen play control system and method supporting resolution adaptation

Abstract

The application discloses a kind of LED large screen play control system and method supporting resolution adaptation, belong to LED large screen play control technical field, the technical problem that the present application wants to solve is how to reduce the workload of LED splicing screen resolution configuration and display drive adaptation etc. Link, improve the display effect and user experience of LED large screen, the technical scheme for being used is: including ARM master unit, display control unit, storage unit and the LED module of several integrated microcontrol unit, microcontrol unit is electrically connected ARM master unit by communication unit, ARM master unit is electrically connected display control unit and storage unit respectively;Wherein, microcontrol unit is used to store LED module configuration information, ARM master unit reads the LED module configuration information stored in microcontrol unit, calculates the layout mode and resolution information of LED splicing screen by distributed operation, and sends the layout mode and resolution information of LED splicing screen to display control unit by I2C bus, and display control unit is completed resolution adjustment and reality control.

Description

Technical Field

[0001] This invention relates to the field of LED large screen broadcast control technology, specifically to an LED large screen broadcast control system and method that supports resolution adaptation. Background Technology

[0002] With the widespread application of LED screens and video walls in advertising, conference presentations, and many other fields, different scenarios have varying requirements for screen resolution. Furthermore, the diverse sizes and shapes of screens in actual use have led to a large number of non-standard resolutions. This necessitates that image splicing processors and other equipment possess the capability to output non-standard resolutions, while ensuring signal output synchronization to avoid asynchronous splicing. It also requires optimized image processing algorithms to maintain high clarity after scaling. Resolution adaptive adjustment technology can automatically adapt to the actual screen resolution and the resolution of the input signal, avoiding problems such as blurring, distortion, or black borders, thus improving the user's visual experience.

[0003] Traditional resolution adaptive technology mainly revolves around "signal adaptation and pixel mapping". The core is to match the input standard resolution signal with the physical resolution of the display screen (often non-standard) through hardware (such as image processors and graphics cards) or basic software algorithms. Specifically, it often adopts three basic methods: "stretching and scaling", "cropping", or "black border filling".

[0004] Currently, this type of technology is mainly used in conventional standard displays. Due to the differences in customization requirements and display control driving methods, LED splicing screens are not suitable for this method.

[0005] Currently, there is no technology that can support automatic resolution adjustment for LED splicing screens. Traditional technologies are mainly used in conventional standard displays. Due to differences in hardware and driving methods, they cannot be directly applied to LED splicing screens. Furthermore, the "stretching and scaling," "cropping," or "black border filling" methods used in traditional technologies will affect the display effect and visual experience of LED splicing screens, greatly reducing the display effect and user experience of large LED screens.

[0006] Therefore, how to reduce the workload in LED splicing screen resolution configuration and display driver adaptation, and improve the display effect and user experience of LED large screens, is a technical problem that urgently needs to be solved. Summary of the Invention

[0007] The technical objective of this invention is to provide an LED large screen broadcast control system and method that supports resolution adaptation, in order to solve the problem of how to reduce the workload of LED splicing screen resolution configuration and display driver adaptation, and improve the display effect and user experience of LED large screens.

[0008] The technical objective of this invention is achieved as follows: a large LED screen broadcast control system that supports resolution adaptation, the system comprising an ARM main control unit, a display control unit, a storage unit, and an LED module with several integrated microcontroller units, wherein the microcontroller units are electrically connected to the ARM main control unit through a communication unit, and the ARM main control unit is electrically connected to the display control unit and the storage unit respectively.

[0009] The microcontroller unit stores the LED module configuration information. The ARM main control unit reads the LED module configuration information stored in the microcontroller unit, calculates the layout and resolution information of the LED splicing screen through distributed computing, and sends the layout and resolution information of the LED splicing screen to the display control unit through the I2C bus. The display control unit then completes the resolution adjustment and display control.

[0010] Preferably, the microcontroller unit includes an MCU control module, a communication module, and a storage module. The MCU control module is electrically connected to the communication module via an RS485 bus, and the MCU control module is electrically connected to the storage module via an SPI bus.

[0011] Even better, each LED module integrates a microcontroller unit. The resolution, row and column driver IC model, and optimal refresh frequency of the LED module are stored in the integrated storage module of the LED module through the MCU control module, and the data is shared with the main control unit through the RS485 bus.

[0012] More preferably, each LED module is encoded and assigned a unique ID value, and the ID value is burned into the storage module integrated in the LED module through the MCU control module. A simplified coordinate function f(x, y) is created based on the total number of LED modules used in the LED splicing screen and the specific assembly position of each LED module, and the information of the total number of LED modules used in the LED splicing screen and the simplified coordinate function f(x, y) is stored in the storage module integrated in the LED module; where the ID value serves as the data access address, x represents the row coordinate, and y represents the column coordinate.

[0013] More preferably, the main control unit sequentially reads and verifies the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module via the RS485 bus, sets the HDMI output resolution based on the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module, and sends the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module to the display control unit.

[0014] Even better, the display control unit receives relevant data via the I2C bus and verifies it again. After the verification is successful, it automatically adjusts the TCON driving mode to be compatible with the HDMI input signal resolution and row and column IC model, and then outputs the display data.

[0015] Even better, the display and control unit adopts the TCON architecture, and the communication unit adopts the RS485 protocol;

[0016] The storage module uses FLASH storage chips.

[0017] A method for controlling LED large screen playback that supports resolution adaptation, the method is as follows:

[0018] Microcontroller unit integration: Each LED module integrates a microcontroller unit, which pre-stores information such as the LED module's resolution, row and column driver IC model, and optimal refresh frequency into the Flash memory chip via the MCU control module;

[0019] Microcontroller unit ID assignment: Each LED module of the microcontroller unit is encoded and assigned a unique ID value, and the ID value is burned into the Flash memory chip through the MCU control module; the ID value serves as the data access address.

[0020] Coordinate function creation: Based on the total number of LED modules used in the LED splicing screen and the specific assembly position of each LED module, a simple coordinate function f(x, y) is created, and the information of the total number of LED modules used in the LED splicing screen and the simple coordinate function f(x, y) is stored in the Flash storage chip integrated in the LED module;

[0021] Data reading and resolution setting: The main control unit sequentially reads and verifies the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module via the RS485 bus, and sets the HDMI output resolution according to the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module. At the same time, it sends the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module to the display control unit.

[0022] Display adaptation and control: The display control unit receives relevant data through the I2C bus and verifies it again. After the verification is successful, it automatically adjusts the TCON driving mode to adapt to the resolution of the HDMI input signal and the row and column IC model, and then outputs the display data.

[0023] The LED large screen broadcast control system and method supporting resolution adaptation of the present invention have the following advantages:

[0024] (i) This invention solves the difficult problems of manually adjusting resolution and IC driver adaptation in the actual use of LED screens, improves the operability of the equipment and user experience, and can be widely used in LED splicing screen equipment.

[0025] (II) This invention realizes the resolution-adaptive playback control of LED screens through distributed data storage and verification technology, which can be applied to LED modules of various sizes, splicing screen products, etc., greatly improving the operability and user experience of LED screens.

[0026] (III) Using this invention can greatly reduce the workload of LED splicing screen resolution configuration and display driver adaptation, improve the compatibility and ease of operation of the broadcast control system, and reduce installation and maintenance costs. This invention can be integrated into various LED splicing screens, all-in-one machines and other equipment, and has great promotional value. Attached Figure Description

[0027] The invention will be further described below with reference to the accompanying drawings.

[0028] Appendix Figure 1 A schematic diagram of the structure of an LED large screen broadcast control system that supports resolution adaptation;

[0029] Appendix Figure 2 This is a schematic diagram of the microcontroller unit.

[0030] Appendix Figure 3 A flowchart illustrating a method for controlling LED large screen broadcasts with adaptive resolution. Detailed Implementation

[0031] The LED large screen broadcast control system and method supporting resolution adaptation of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1:

[0033] As attached Figure 1 As shown, this embodiment provides an LED large screen broadcast control system that supports resolution adaptation. The system includes an ARM main control unit, a display control unit, a storage unit, and an LED module with several integrated microcontroller units. The microcontroller units are electrically connected to the ARM main control unit through a communication unit, and the ARM main control unit is electrically connected to the display control unit and the storage unit respectively.

[0034] The microcontroller unit stores the LED module configuration information. The ARM main control unit reads the LED module configuration information stored in the microcontroller unit, calculates the layout and resolution information of the LED splicing screen through distributed computing, and sends the layout and resolution information of the LED splicing screen to the display control unit through the I2C bus. The display control unit then completes the resolution adjustment and display control.

[0035] As attached Figure 2As shown, the microcontroller unit in this embodiment includes an MCU control module, a communication module, and a storage module. The MCU control module is electrically connected to the communication module via an RS485 bus, and the MCU control module is electrically connected to the storage module via an SPI bus.

[0036] In this embodiment, each LED module integrates a microcontroller unit. The resolution, row and column driver IC model, and optimal refresh frequency of the LED module are stored in the storage module integrated in the LED module through the MCU control module, and the data is shared with the main control unit through the RS485 bus.

[0037] In this embodiment, each LED module is encoded and assigned a unique ID value. The ID value is then burned into the storage module integrated with the LED module via the MCU control module. A simplified coordinate function f(x, y) is created based on the total number of LED modules used in the LED splicing screen and the specific assembly position of each LED module. The information of the total number of LED modules used in the LED splicing screen and the simplified coordinate function f(x, y) is stored in the storage module integrated with the LED module. Here, the ID value serves as the data access address, x represents the row coordinate, and y represents the column coordinate.

[0038] In this embodiment, the main control unit sequentially reads and verifies the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module via the RS485 bus, sets the HDMI output resolution based on the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module, and sends the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module to the display control unit.

[0039] In this embodiment, the display control unit receives relevant data via the I2C bus and performs verification again. After the verification is successful, it automatically adjusts the TCON driving mode to be compatible with the resolution and row and column IC models of the HDMI input signal, and then outputs the display data.

[0040] In this embodiment, the display and control unit adopts the TCON architecture, and the communication unit adopts the RS485 protocol.

[0041] The storage module in this embodiment uses a FLASH storage chip.

[0042] Example 2:

[0043] As attached Figure 3 As shown in the figure, this embodiment provides a method for controlling LED large screen broadcasts that supports resolution adaptation. The method is as follows:

[0044] S1. Microcontroller Unit Integration: Each LED module integrates a microcontroller unit, which pre-stores the LED module's resolution, row and column driver IC model, and optimal refresh frequency information into the Flash memory chip via the MCU control module;

[0045] S2. Microcontroller Unit ID Assignment: Each microcontroller unit's LED module is encoded and assigned a unique ID value, which is then burned into the Flash memory chip via the MCU control module; the ID value serves as the data access address.

[0046] S3. Coordinate Function Creation: Based on the total number of LED modules used in the LED splicing screen and the specific assembly position of each LED module, a simplified coordinate function f(x, y) is created, and the information of the total number of LED modules used in the LED splicing screen and the simplified coordinate function f(x, y) is stored in the Flash storage chip integrated in the LED module.

[0047] S4. Data Reading and Resolution Setting: The main control unit sequentially reads and verifies the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module via the RS485 bus, and sets the HDMI output resolution according to the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module. At the same time, it sends the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module to the display control unit.

[0048] S5. Display Adaptation and Control: The display control unit receives relevant data through the I2C bus and verifies it again. After the verification is successful, it automatically adjusts the TCON driving mode to adapt to the resolution and row and column IC models of the HDMI input signal, and outputs display data after adjustment.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A large LED screen broadcast control system supporting resolution adaptation, characterized in that, The system includes an ARM main control unit, a display control unit, a storage unit, and an LED module with several integrated microcontrollers. The microcontrollers are electrically connected to the ARM main control unit through a communication unit, and the ARM main control unit is electrically connected to the display control unit and the storage unit respectively. The microcontroller unit stores the LED module configuration information. The ARM main control unit reads the LED module configuration information stored in the microcontroller unit, calculates the layout and resolution information of the LED splicing screen through distributed computing, and sends the layout and resolution information of the LED splicing screen to the display control unit through the I2C bus. The display control unit then completes the resolution adjustment and display control. The microcontroller unit includes an MCU control module, a communication module, and a storage module. The MCU control module is electrically connected to the communication module via an RS485 bus, and the MCU control module is electrically connected to the storage module via an SPI bus. Each LED module integrates a microcontroller unit. The resolution, row and column driver IC model, and optimal refresh frequency of the LED module are stored in the storage module integrated in the LED module through the MCU control module, and the data is shared with the main control unit through the RS485 bus. Each LED module is individually coded and assigned a unique ID value. This ID value is then programmed into the integrated storage module of the LED module via the MCU control module. A simplified coordinate function f(x, y) is created based on the total number of LED modules used in the LED splicing screen and the specific assembly position of each LED module. This information, along with the total number of LED modules used in the LED splicing screen and the simplified coordinate function f(x, y), is stored in the integrated storage module of the LED module. Here, the ID value serves as the data access address, x represents the row coordinate, and y represents the column coordinate. The main control unit sequentially reads and verifies the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module via the RS485 bus, and sets the HDMI output resolution according to the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module. At the same time, it sends the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module to the display control unit. The display control unit receives relevant data via the I2C bus and verifies it again. After the verification is successful, it automatically adjusts the TCON driving mode to be compatible with the HDMI input signal resolution and row and column IC model, and then outputs display data after adjustment. The display and control unit adopts the TCON architecture, and the communication unit adopts the RS485 protocol; The storage module uses FLASH storage chips.

2. A method for controlling LED large screen playback that supports resolution adaptation, characterized in that, The method is as follows: Microcontroller unit integration: Each LED module integrates a microcontroller unit, which pre-stores information such as the LED module's resolution, row and column driver IC model, and optimal refresh frequency into the Flash memory chip via the MCU control module; Microcontroller unit ID assignment: Each LED module of the microcontroller unit is encoded and assigned a unique ID value, and the ID value is burned into the Flash memory chip through the MCU control module; the ID value serves as the data access address. Coordinate function creation: Based on the total number of LED modules used in the LED splicing screen and the specific assembly position of each LED module, a simple coordinate function f(x, y) is created, and the information of the total number of LED modules used in the LED splicing screen and the simple coordinate function f(x, y) is stored in the Flash storage chip integrated in the LED module; Data reading and resolution setting: The main control unit sequentially reads and verifies the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module via the RS485 bus, and sets the HDMI output resolution according to the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module. At the same time, it sends the ID value, resolution, IC model, and coordinate function f(x, y) of each LED module to the display control unit. Display adaptation and control: The display control unit receives relevant data through the I2C bus and verifies it again. After the verification is successful, it automatically adjusts the TCON driving mode to adapt to the resolution of the HDMI input signal and the row and column IC model, and then outputs the display data.

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