Large-size screen splice system and method based on multi-media communication

Abstract

The invention discloses a large-size screen splice system based on multi-media communication. The large-size screen splice system comprises a signal source, a coder, a switch, a decoding splice device and a splice screen. After a signal emitted by the signal source is coded by the coder, the signal enters the switch to be transmitted, and then the signal is displayed on the splice screen through the splice device. The invention discloses a splice method of the large-size screen splice system. Compared with the prior art, the large-size screen splice system and method based on multi-media communication achieve synchronous display of different-place signals and high-definition information sharing in a splice display system.

Description

technical field [0001] The invention belongs to the technical field of video processing, and in particular relates to a system for video transmission and image splicing. The invention also discloses a splicing method using the splicing system. Background technique [0002] The large screen system is an important integrated technology widely used in industrial production, stage performances, security and other industries and fields. It is the result of the combination of current display imaging technology and information technology. There are many ways to implement large-screen systems on the imaging side, such as DLP rear projection, LCD, and PDP splicing. Due to the relationship between the characteristics of the computer signal itself, there are requirements and restrictions on the bandwidth and length of the cable. In the process of system design and implementation, the impact of signal interference and attenuation needs to be considered, which is the content that needs t...

AI Technical Summary

Problems solved by technology

[0004] The main disadvantage of the traditional large-screen system is that the wiring cost and wiring conditions are very high, and RGBHV cables (5 coaxial cables) are required to transmit computer video signals, which are expensive

Secondly, the transmission distance of ordinary RGBHV cables is limited, and the maximum transmission distance of some high-end brand cables is only 70 meters to 80 meters.

Finally, the position of the source of the traditional large-screen system must be fixed, and a source must correspond to a corresponding large-screen

If expansion and redundancy are considered, more information points need to be added, and special information interfaces or modules need to be provided, which virtually increases the complexity and cost of the system

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