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Intelligent detection method and system for video signal conversion device

A technology of video signal and conversion device, which is applied in the direction of television, image communication, electrical components, etc., to achieve the effect of high intelligence, easy portability, and easy operation of the system

Inactive Publication Date: 2011-12-07
AVIC NO 631 RES INST
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Problems solved by technology

[0009] The object of the present invention is to provide an intelligent detection method and system for a video signal conversion device, which solves the technical problems existing in the existing video detection system

Method used

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  • Intelligent detection method and system for video signal conversion device
  • Intelligent detection method and system for video signal conversion device
  • Intelligent detection method and system for video signal conversion device

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Embodiment Construction

[0049] The hardware design platform of the present invention:

[0050] The hardware of this system is designed based on the industrial computer platform. The industrial computer is connected with 4 functional modules. The 4 functional modules are video signal forming module, video signal conversion module, digital video signal receiving module and continuous code exchange module. Between the functional modules It communicates with the zero-slot controller on the industrial computer through the PCI bus and the ISA bus, and the communication between the systems is realized through serial serial codes.

[0051] see figure 1 The structure diagram of , where:

[0052]1) Video signal forming module: designed as an arbitrary waveform generator module based on the PCI bus, with a refresh rate of 40MS / S, outputting a 5MHz undistorted video signal, the output signal amplitude is ±5V (50Ω load), and the DA resolution reaches 12 Bit, with digital mode synchronous output function, the on...

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Abstract

The present invention relates to an intelligent detection method and system for a video signal conversion device, comprising the following steps: 1] generating multiple video signal sources, the video signal source including video signals and synchronization signals; Signal and synchronous signal are integrated and output to provide incentives for the video signal conversion device under test; 3] Collect 6 digital differential video signals of the video signal conversion device under test, convert them into a format acceptable to the graphics card and output them to the display; 4 】The system judges the test result and gives the test conclusion. The invention solves the technical problems existing in the existing video detection system. The invention has multiple video signal types, high system intelligence and high integration.

Description

technical field [0001] The invention relates to an intelligent detection method and system for a video signal conversion device. Background technique [0002] The current TV signal in our country adopts the standard PAL system, but the video signal output of some video signal conversion devices is non-standard PAL system. In the process of product testing and maintenance, there is a defect that the testing equipment cannot use the existing general equipment. And the video detection system of existing video signal conversion device also has the following technical problems: [0003] 1. The existing video detection system is mostly designed for the standard PAL system, which cannot meet the fault detection of the non-standard PAL system of the video signal conversion device under test; [0004] 2. It cannot meet the needs of diversified video signal types of the tested video signal conversion device (video signal conversion device); [0005] 3. The degree of intelligence is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00H04N17/02H04N17/04
Inventor 王青王俞心周颖任婧王瑞李夏郝建向建军
Owner AVIC NO 631 RES INST
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