Video monitoring system detection method and apparatus thereof

Abstract

The invention provides a method for detecting a video monitoring system and a device thereof; a standard definition television test signal and a high definition television test signal are generated by a signal source generator; the test signals are accessed in a video channel of a video monitoring system to be detected, and with a video index of the video monitoring system to be detected, video data is collected, analyzed and tested by an automatic analyzer based on the control of a single board computer of a computer; and the test result is displayed in the form of graphic and data. The invention can more scientifically and objectively assess the signal index of digital television video equipment, can carry out the test on video indexes of random signal-to-noise ratio, synchronization amplitude, white strip amplitude, luminance nonlinearity, amplitude frequency characteristic and the like of the video monitoring system, simultaneously has the function of image display of the video to be detected, can generate gray scale signals of 11 grade, and meets the detecting requirement of the field of video monitoring; furthermore, the invention has simple structure, convenient use, lower detecting cost, and is applicable to on-site detection and fill the emptiness of special detection instrument in the detection field of domestic and foreign video monitoring project.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a detection method and a device for a video surveillance system. Background technique [0002] The video surveillance system is one of the main technical means for the public security organs and other relevant departments to intuitively understand and grasp the security dynamics in the monitoring area, and effectively improve the social security management level. The reliability, accuracy and quality of video surveillance system engineering are related to the quality of evidence obtained by public security organs and other relevant departments. Video surveillance system engineering mainly includes cameras, display devices and storage devices and other components. The quality of video surveillance system engineering is mainly reflected in the horizontal resolution of the camera, output signal-to-noise ratio, minimum illumination, signal-to-noise ratio of the transmission channe...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, existing video monitoring system detection instruments such as the "SecuriTESTTM PRO" security tester made in the United States are like multimeters used by electricians, with only a few simple functions such as twisted pair test, video color bar generator and camera encoding. , with low accuracy, it is a simple test instrument for video surveillance system installation and fault location. It cannot detect the main technical indicators such as signal-to-noise ratio, definition, gray level, etc., and cannot meet the detection requirements at all.

Although there are some instruments and equipment in the radio and television system that can be used for the detection of the video surveillance system, they are usually expensive, heavy, and not suitable for on-site detection

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