A delay time testing method and testing tool for an interactive smart panel

Abstract

The invention provides a delay time testing method for an interactive intelligent tablet computer. The delay time testing method comprises the following steps that a drawing pen is moved at a constant speed on a screen of an interactive intelligent tablet computer to be tested; pictures of a measuring instrument set according to the moving of the drawing pen, and the drawing pen position and the drawing line trace formed by the interactive intelligent tablet computer to respond the drawing pen moving are captured, wherein the measuring instrument is used for obtaining the moving distance of the drawing pen and the length of the drawing line trace; the distance difference value between the moving distance of the drawing pen and the length of the drawing line trace in the pictures is obtained; and the ratio value of the distance difference value to the moving speed of the drawing pen is obtained, and the touch delay time is obtained. The invention also provides a delay time testing tool for the interactive intelligent tablet computer, and the delay time detecting precision of the interactive intelligent tablet computer can be improved.

Description

technical field [0001] The invention relates to the field of performance testing of an interactive smart panel, in particular to a delay time testing method and a testing tool for an interactive smart panel. Background technique [0002] At present, the definition of touch delay time in the whole industry is basically defined in the response time of the touch box. When we write on the all-in-one machine, the track coordinates of the writing position are captured by the touch box first, and the USB data is simulated by the USB protocol and transmitted to the computer module. The computer module simulates the image data through the calculation of each coordinate and sends it to the corresponding display module through the corresponding software, and outputs it to the video decoder through HDMI for image decoding. After the video is decoded, it is connected to the display screen through LVDS, which is what we see The final display screen. In the video decoding part, the decodi...

AI Technical Summary

Problems solved by technology

The response time of the touch box is between a few milliseconds, and the computer cache and calculation are also between a few milliseconds. However, because the multiplier cache time is delayed in the form of several frames, depending on the processing scheme, the time can reach dozens of at most. Milliseconds; the delay time in this respect cannot be quantified in all specifications in the industry at present. The delay time of the interactive smart panel obtained by the current measurement technology is difficult to truly reflect the real touch delay time of the interactive smart panel.

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