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System and method for realizing redundancy backup of video signals

A video signal, redundant backup technology, applied in the parts of the TV system, the parts of the color TV, the TV, etc., can solve the problems of incomplete display screen, the image part cannot be displayed, etc., and achieve the effect of high reliability

Inactive Publication Date: 2010-12-22
GUANGDONG VTRON TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Once a certain video signal link fails in the whole system, the corresponding part of the image cannot be displayed, so that the expected picture cannot be displayed completely, especially in occasions with high reliability requirements. come a very big impact

Method used

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  • System and method for realizing redundancy backup of video signals
  • System and method for realizing redundancy backup of video signals
  • System and method for realizing redundancy backup of video signals

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Embodiment Construction

[0024] The present invention will be further described in detail through specific embodiments below in conjunction with the accompanying drawings.

[0025] see figure 1 , the hardware architecture of the present invention includes a video processor and a plurality of display units receiving output signals of the video processor.

[0026] The present invention takes the signal redundancy backup of the DVI (DVI full name is Digital Visual Interface, i.e. digital video interface) interface as an example. Can, then carry out redundant backup to the CVBS signal (composite video broadcast signal or composite video blanking and synchronism, English full name: Composite VideoBroadcast Signal or Composite Video Blanking and Sync) then the decoding chip of DVI (used in the present invention is AD9388A) can be replaced with the corresponding CVBS decoder chip (such as TI's TVP5160, etc.):

[0027] As can be seen from the overall block diagram of the system of the present invention, the...

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Abstract

The invention relates to a system and a method for realizing redundancy backup of video signals, and the system comprises a video processor and a plurality of display units for receiving output signals of the video processor, wherein each display unit in the plurality of the display units is used for receiving a first video output signal and a second video output signal which are outputted by two lines of the video processor and are the same, and further selecting one video output signal as a signal source for display or displaying prompt information that two lines of the signal sources have no signals. Each display unit can judge and control a video decoding module thereof to select the first video output signal as the signal source for display or selecting the second video output signal as the signal source for display or displaying the prompt information that the two lines of the signal sources of the first video output signal and the second video output signal have no signals through an image processing module thereof; and the system can realize the redundancy backup of the video signals, has high reliability and is particularly applicable to being applied in a monitoring system of a control center and other occasions with relatively strict requirements on display reliability.

Description

technical field [0001] The invention relates to the technical field of video signal processing, in particular to a system and method for realizing redundant backup of video signals. Background technique [0002] In the current field of video surveillance and other fields that require high reliability of video display, especially on the large-scale digital splicing wall system in the indoor monitoring center, each display system has a large number of video signals input to the display system, so The working environment of the entire system will be very complicated. Once one of the signals fails, it will inevitably lead to signal loss in the corresponding display module, resulting in a black screen or other no-signal phenomena. [0003] The existing digital splicing wall monitoring and display system mainly consists of multiple display units spliced ​​together for display, which can jointly form a complete background picture, generally called a desktop signal, and can also be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/14H04N7/26H04N5/76
Inventor 张宣布陈全林少伟孙三峡
Owner GUANGDONG VTRON TECH CO LTD
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