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A kind of BMC chip-oriented video information compression system and method

A technology of BMC chips and video information, which is applied in closed-circuit television systems, components of television systems, digital video signal modification, etc., can solve problems such as complex compression logic, achieve fast transmission, high compression efficiency, and low cost

Active Publication Date: 2020-03-10
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is: the above-mentioned compression algorithm has the disadvantages of complex compression logic and high implementation cost

Method used

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  • A kind of BMC chip-oriented video information compression system and method
  • A kind of BMC chip-oriented video information compression system and method
  • A kind of BMC chip-oriented video information compression system and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Such as figure 1 Shown, a kind of video information compression system facing BMC chip, described system comprises:

[0051] The VGA analog-to-digital conversion module is responsible for converting the VGA analog signal into digital information that can be processed internally. After digital-to-analog conversion, each color component is represented by 8-bit digital information, and redundant information such as blanking is removed, and only the synchronization signal and color components;

[0052] The pixel extraction module is responsible for receiving the digital information of the digital-to-analog conversion module, and storing the received image information according to sampling HS and VS;

[0053] The image preprocessing module is responsible for grayscale processing of image information;

[0054] The image compression module is responsible for receiving the grayscale image or original image processed by the image preprocessing module according to the configura...

Embodiment 2

[0059] On the basis of Embodiment 1, the video information described in this embodiment is program text running video information, and the video information is transformed sequentially.

[0060] The resolution of the image is 640x480, the vertex coordinates of the upper left corner are (0,0), and the vertex coordinates of the lower right corner are (640,480).

[0061] The position range of the program text running type is (0,0), (640,480), and the program text running type is compared at different times image 3 shown.

Embodiment 3

[0063] On the basis of embodiment 1, the video information described in this embodiment is the video information of the interface operation type, and the video information is a partial transformation;

[0064] There are three ranges of changing areas for the running video information on the program interface: a waveform display area, an alarm display area, and an alarm number area.

[0065] The resolution of the image is 640x480, the vertex coordinates of the upper left corner are (0,0), and the vertex coordinates of the lower right corner are (640,480).

[0066] There are three areas of program interface operation type change area, which are waveform display area, alarm display area, and alarm number area. ), the program interface running type at different times is compared for example Figure 4 shown.

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Abstract

The invention discloses a video information compression system and method for a BMC chip. The system comprises a VGA analog-to-digital conversion module, a pixel extraction module, an image preprocessing module, an image compression module and an image sending module; the method comprises the following steps: converting an analog signal of a VGA into digital information that can be processed internally through the VGA analog-to-digital conversion module; receiving the digital information of the analog-to-digital conversion module through the pixel extraction module, and storing the received image information according to sampling HS and VS; performing graying processing on the image information through the image preprocessing module; receiving a gray level image or an original image processed by the image preprocessing module through the image compression module according to configuration information, and selecting a compression algorithm according to the configuration information; and reading the compression information in a cache of the image compression module through the image sending module, and sending the compression information to a remote monitoring system according to a transmission protocol. The video information compression system and method can quickly transmit a large amount of image information, and have the advantages of low implementation cost and high compression efficiency.

Description

technical field [0001] The invention relates to the field of server dedicated chip front-end design, in particular to a video information compression method for BMC chips. Background technique [0002] The BMC chip is a baseboard management controller chip, which is widely used in the field of multi-channel servers. Using the BMC remote management system, server operation and maintenance personnel can remotely connect and monitor the server, monitor the running status of the remote server, and view the interface of the server running, so as to understand in time The working condition of the server. [0003] In the existing remote management system based on BMC chip, video surveillance uses BMC to collect video information, uses H264 or JEPG and other related compression algorithms to compress video, and then transmits it to the management system. The above-mentioned compression algorithm has the disadvantages of complex compression logic and high implementation cost. Even ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/42H04N7/18H04N5/202
CPCH04N5/202H04N7/18H04N19/42
Inventor 刘同强王朝辉童元满赵元
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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