Large-scale video display control matrix equipment based on Ethernet switching technology

Abstract

The invention belongs to the technical field of video display and control, particularly relates to large-scale video display and control matrix equipment based on an Ethernet switching technology, andaims to solve the problem that large-scale multi-channel video interconnection switching cannot be realized in the prior art. The equipment comprises one or more interface cards used for carrying outchannel-differentiated packet cutting, packet packaging, timing sending, caching, recombination, image processing, sound processing and control processing on service data; an Ethernet switching unitwhich performs data replication and forwarding based on the switching configuration and the destination address of the data; a clock synchronization card which provides a clock signal and a synchronization signal; and a control card used for performing switching configuration among the Ethernet switching unit, the input channel of the interface card and the output channel of the interface card. The total capacity of the equipment can be linearly increased along with the use number of the switch chips, the service data is subjected to channel distinguishing processing in the form of data packets, large-scale full-unimpeded flexible data exchange can be realized, the equipment flexibility is high, and the data loss rate is low.

Description

technical field [0001] The invention belongs to the technical field of video display and control, and in particular relates to a large-scale video display and control matrix device based on Ethernet switching technology. Background technique [0002] Video display and control equipment mainly includes video matrix and splicing processor. The video matrix refers to an electronic device that arbitrarily outputs m-channel video signals to n-channel monitoring equipment through array switching. Some video matrices also have audio switching function, which can switch video and audio signals synchronously. This kind of matrix is ​​also called video and audio matrix. The current video matrix has two categories of analog matrix and digital matrix in terms of its realization method. Video matrix is ​​generally used in various monitoring situations. The video splicing controller is a professional video processing and control device. Its main function is to divide a video signal int...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned problems in the prior art, that is, the problem that the prior art cannot realize large-scale multi-channel video interconnection and switching, the present invention provides a large-scale video display and control matrix device based on Ethernet switching technology, including a backplane, Power supply, main control module, fan, chassis, the video display control matrix device also includes one or more interface cards, Ethernet switching unit, clock synchronization card, control card;

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