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NIOS II-based video monitoring method

A video monitoring and video technology, applied in closed-circuit television systems, color signal processing circuits, etc., can solve the problem that video monitoring cannot realize real-time monitoring, collection, storage and transmission at the same time, and achieve rich functions, easy update, and fast transmission rate Effect

Inactive Publication Date: 2010-06-16
XIAN UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0006] The object of the present invention is to provide a kind of video monitoring method based on NIOS II, solve the problem that the video monitoring method of prior art can't realize real-time monitoring, acquisition, storage and transmission simultaneously

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  • NIOS II-based video monitoring method

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Embodiment Construction

[0099] The method of the video monitoring based on NIOS II that the present invention provides, see figure 1 , the specific implementation method is as follows:

[0100] A. analog video signal is input to video signal conversion 1 (ADV7181B), after the NIOS II control system 22 control in video calculation processing / system control 2, this analog video signal is converted into digital video signal and synchronous signal 1;

[0101] b. Digital video signal and synchronous signal I are processed by video processing 21 in video calculation processing / system control 2, and RGB digital video signal and synchronous signal II are output;

[0102] c. The RGB digital video signal and synchronous signal II output by the video processing 21 in the video calculation processing / system control 2 are directly sent to the video display signal conversion 4 (DAV7213), and converted into analog RGB digital video signals; or the video processing After the RGB digital video signal of 21 outputs a...

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Abstract

The invention provides an NIOS II-based video monitoring method, which belongs to the technical field of embedded video monitoring. The method comprises the following steps: a, converting an analogue video signal into a digital video signal and a synchronizing signal I; b, processing a video to output an RGB digital video signal and a synchronizing signal II; c, real time displaying, or storing or uploading the RGB digital video signal and the synchronizing signal II to an upper computer; and d, outputting an analogue RGB digital video signal to a VGA for displaying and outputting. The method solves the problems that the video monitoring method in the prior art cannot realize real-time monitoring, acquisition, storage and transmission at the same time. Therefore, the method has the advantages of high integration level and fast image data transmission speed.

Description

technical field [0001] The invention belongs to the technical field of embedded video monitoring, and in particular relates to a video monitoring method based on NIOS II, which is used to realize real-time monitoring, collection, storage and transmission of video monitoring. Background technique [0002] Video surveillance has developed rapidly in recent years, and the scope of application is constantly expanding. In the past, the video surveillance system used in China was mainly an analog system. By the end of the 1990s, with the rapid improvement of network broadband, computer processing power and storage capacity, and the emergence of various practical video information processing technologies, video surveillance has evolved from analog video Surveillance has entered the digital network era, that is, digital video surveillance system. The digital video surveillance system converts the analog signal obtained by the camera into a digital signal, which is convenient for co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18H04N9/64
Inventor 唐小华王花朋
Owner XIAN UNIV OF POSTS & TELECOMM
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