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Realization method and system of high-speed redirection of kvm image based on domestic bmc chip

A technology of BMC chip and implementation method, which is applied in image communication, input/output process of data processing, instruments, etc., to achieve the effect of good applicability, reduced delay, and high-quality remote image display

Active Publication Date: 2022-03-18
EAST CHINA INST OF COMPUTING TECH
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  • Realization method and system of high-speed redirection of kvm image based on domestic bmc chip
  • Realization method and system of high-speed redirection of kvm image based on domestic bmc chip
  • Realization method and system of high-speed redirection of kvm image based on domestic bmc chip

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[0056] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0057] An implementation system for high-speed redirection of KVM images based on domestic BMC chips includes the following core modules:

[0058] 1. VGA driver software module. Customized for the domestic BMC chip, it is responsible for collecting the RGB data of each frame of video into the specified block in the video data buffer area, and opening it through the operating system so that other modules can access it.

[0059] 2. Video comparison software module. Compare the current frame in the video...

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Abstract

The invention provides a method and system for realizing high-speed redirection of KVM images based on a domestic BMC chip, reducing redundant data coding compression and network transmission processing work, and improving display quality. Due to the characteristics of local changes in screen video data, most of the data between adjacent frames is the same, resulting in a considerable degree of redundant data in encoding compression and network transmission data. The video design of the hardware module is basically the same as that of the popular BMC chip on the market, and it can be compatible with the general KVM implementation scheme and has good applicability. The amount of data actually compressed and transmitted is small, which can save a lot of network bandwidth and thus support higher-quality remote image display. The strategy of updating the display area where the mouse is located first can quickly feed back the changes of the display screen to the client, effectively reducing the delay.

Description

technical field [0001] The invention relates to the technical field of embedded systems, in particular to a method and system for realizing high-speed redirection of KVM images based on domestic BMC chips. Background technique [0002] KVM OVER IP is also called digital KVM. KVM is the abbreviation of Keyboard, Video, Mouse (Keyboard, Video, Mouse). It is to remotely control multiple computers through a local set of keyboards, monitors and mice. It collects video signals from the local computer, converts them into digital information after analog-to-digital conversion, compresses them into IP packets, and transmits them through the Internet or a dedicated network. After the remote console receives the IP packets, it unpacks and converts them. It is displayed on the screen of the console; the management personnel operate the keyboard and mouse of the console accordingly, and a series of control commands issued by the console are combined into IP packets, which are sent back t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/0487G06F3/0484G06F3/14H04N19/423H04N19/142H04N19/167H04N19/85
CPCG06F3/0487G06F3/0484G06F3/1407H04N19/423H04N19/142H04N19/167H04N19/85
Inventor 蒋鹏程彭宏符凯刘颖娜刘荣宽
Owner EAST CHINA INST OF COMPUTING TECH
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