Driving control method for LED display screen

Abstract

The invention provides a driving control method for an LED display screen. The method comprises the steps of (a) broadcasting a screen configuration command by a sending card in the wireless mode, and enabling a plurality of receiving cards to control respective loading areas thereof to respectively display the hardware identifier of each receiving card and the loading area information thereof so as to generate a data allocation table, wherein the data allocation table contains a loading position number allocated to each receiving card; (b) storing the data allocation table in the sending card, selectively and wirelessly broadcasting data messages generated based on the data allocation table to the plurality of receiving cards so as to enable the receiving cards to read their respective loading position numbers; and (c) according to the data allocation table, conducting the splitting and packaging process of input video data by the sending card so as to obtain video data packets, wirelessly broadcasting the video data packets to the plurality of receiving cards, and enabling the receiving cards to receive corresponding video data packet and drive their respective loading areas to display the received data according to the hardware identifiers of the receiving cards and the loading position numbers thereof. In this way, a real LED display system in the wireless mode can be realized.

Description

technical field [0001] The invention relates to the technical field of LED display control, in particular to a method for driving and controlling an LED display screen. Background technique [0002] Existing LED display systems are usually divided into synchronous systems and asynchronous systems. Synchronous systems usually include PCs, sending cards, receiving cards and LED displays. Asynchronous systems usually include asynchronous control cards, receiving cards and LED displays. LED displays It can be composed of multiple boxes, and usually a box needs to be equipped with a receiving card. For large-screen display application scenarios, gigabit network or optical fiber connections are used between the cabinets. When the LED display has many cabinets, it often needs to go through multi-level cascading, which brings great harm to the wiring of the LED display. It is very inconvenient; especially in some application environments such as rental LED displays and special-shap...

AI Technical Summary

Problems solved by technology

[0004] However, although the existing technology proposes the architecture of the wireless LED display system, it does not give any specific implementation methods such as how to establish a communication connection, how to implement screen matching, how to implement data distribution, etc.; in addition, due to the limitations of UWB technology Its effective transmission distance can only be about 5 meters, which seriously limits the separation distance between the sending card of the control system and the cabinet. In addition, UWB technology can only transmit compressed video data, which will bring real-time display problems, namely It takes time to decompress the compressed image data, and there will be a certain delay

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