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Video switching device and video switching method

A video switching and pre-switching technology, which is applied in the direction of TV, color TV, color TV parts, etc., and can solve the problem of complicated display switching

Inactive Publication Date: 2017-05-10
INFORMATION & COMM COMPANY OF STATE GRID HEILONGJIANG ELECTRIC POWER COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention is to solve the problem of complex display switching between the internal network and the external network, and now provides a video switching device and method

Method used

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  • Video switching device and video switching method
  • Video switching device and video switching method

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specific Embodiment approach 1

[0027] Specific implementation mode one: refer to figure 1 Specifically explain this embodiment, the video switching device described in this embodiment, in actual application, when needing to switch the external network (intranet) picture currently displayed on the display to the internal network (external network) picture, then use the ARM micro The controller sends a switching signal to the video switching device, and the switching signal includes information for switching the external network (intranet) to the internal network (external network).

[0028] The video switching device can actually use the HD3SS215 chip, which is a high-speed wide common-mode range passive switch that can support DisplayPort HBR2 (Display Port) and HDMI (High Definition Multimedia Interface, high-definition multimedia interface) that require a refresh rate of 4k2k 60Hz )application. The HD3SS215 chip can be configured to support two source devices to connect to one sink device, just like two ...

specific Embodiment approach 2

[0032] Specific implementation mode two: refer to figure 2 Describe this embodiment in detail, the video switching method described in this embodiment, in actual application, when needing to switch the external network (intranet) picture currently displayed on the display to the internal network (external network) picture, then use ARM micro The controller sends a switching signal to the video switching device, and the switching signal includes information for switching the external network (intranet) to the internal network (external network). Judge the type of the above-mentioned switching signal, when the type of the switching signal is to switch the external network (intranet) to the internal network (external network), the signal power corresponding to the external network (intranet) will be disconnected, and the external network ( Intranet) signal data to stop caching. Then clear all cached external network (intranet) signal data. And switch all the signal types corre...

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Abstract

A video switching device and a video switching method relate to the technical field of video switching. The invention aims to solve the problem that display switching between intranet and extranet is complicated. According to the video switching device and the video switching method of the invention, first, an HDMI video peripheral power supply circuit is cut off, then, the HDMI video data signal is switched, and finally, the HDMI video peripheral power supply circuit is switched to complete an HDMI video intranet-extranet switching control process. Under the condition that the staff only uses a single set of keyboard, mouse and display, quick switching can be carried out between the video signals of intranet and extranet computers without installing software in the computers. The video switching device and the video switching method support a 4K UHD picture display switching function, and meet the 4K display switching demand of the information systems of large enterprises.

Description

technical field [0001] The invention belongs to the technical field of video switching. Background technique [0002] At present, the existing information systems of large enterprises are divided into independent intranet and extranet, and the intranet and extranet are physically separated. In order to meet the office environment requirements of the intranet and extranet at the same time, the staff need to be equipped with two computers separately. They are connected to the internal network and external network respectively, and the keyboard, mouse and monitor need to be configured separately for the two computers, and the computers are operated by the keyboard, mouse and monitor of each computer. In addition, according to different work requirements, computer peripherals such as U disk, USB printer, USB scanner, and USB tablet need to be configured separately. Due to the physical isolation between the internal network and the external network, the computer peripherals canno...

Claims

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Application Information

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IPC IPC(8): H04N5/268H04N21/4363H04N21/438
CPCH04N5/268H04N21/43635H04N21/4383
Inventor 赵威
Owner INFORMATION & COMM COMPANY OF STATE GRID HEILONGJIANG ELECTRIC POWER COMPANY
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