Video detection method, circuit board detection method and device

Abstract

The embodiment of the invention relates to a video detection method, which mainly comprises the following steps of: acquiring a phase point to be detected from a static picture acquired by current video signal output; judging whether the phase point to be detected is within a predetermined phase point range; and if the phase point to be detected is within the predetermined phase point range, showing that the current video signal output is qualified. The embodiment of the invention also provides a circuit board detection method, a corresponding video detection device and a circuit board detection device. The video detection method, the circuit board detection method and the corresponding device in the embodiment of the invention can provide a detection standard for the video signal output, so the problem of an unstable detection result for video signal output detection by a detection mode dependent on subjective experience is solved. Therefore, the working efficiency is improved. Furthermore, the video detection device has simple operation and low cost, and the production cost is lowered.

Description

Technical field [0001] The invention relates to the field of signal processing, in particular to a video detection method, a circuit board detection method and a device. Background technique [0002] At present, when the circuit boards are classified and tested, the signal sources are manually switched manually, and different testing instruments are used to switch between the voltage detection, video signal output detection and audio signal output detection of the circuit board integrated circuit chip. The test items are all judged according to their own subjective standards. This kind of test method that relies on subjective experience makes the voltage test, video signal output test and audio signal output test of the above-mentioned integrated circuit chip good and bad. In addition, the instruments used for video signal output detection are generally imported instruments, which are expensive and increase production costs. Summary of the invention [0003] The technical problem...

AI Technical Summary

Problems solved by technology

[0002] At present, when classifying and testing circuit boards, the signal source is manually switched, and different testing instruments are used to switch between the voltage detection of the integrated circuit chip of the circuit board, the video signal output detection and the audio signal output detection. All items of detection are judged according to their own subjective standards. This detection method relying on subjective experience makes the detection results of the above-mentioned integrated circuit chip voltage detection, video signal output detection and audio signal output detection good and bad, reducing In addition, the instruments for video signal output detection are generally imported instruments, which are expensive and increase production costs.

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