A seamless table tennis bounce performance detection and sorting method

Abstract

The invention discloses a seamless table tennis ball bounce performance checking and selecting method which is implemented using an inclined surface bounce and collision detection equipment. The method comprises steps of 1) using the inclined surface bounce and collision detection equipment to perform bounce performance calibration and detection of all levels of seamless table tennis balls by level, and obtaining reference calibration areas of all levels of the seamless table tennis balls; 2) writing the reference calibration areas of all levels of the seamless table tennis balls in a processor; and 3) using the inclined surface bounce and collision detection equipment for checking and selecting a to-be-detected seamless table tennis ball. Influences of the falling initial speed of the table tennis ball can be eliminated, errors caused by non-uniform bounce performances of different areas of the spherical surface of the table tennis ball, and real-time online detection can be achieved.

Description

technical field [0001] The invention relates to a method for detecting and sorting the bouncing performance of seamless table tennis balls, which is used for online detection and sorting of the bouncing performance of seamless table tennis balls. Background technique [0002] As my country's national sport, table tennis has become popular among sports enthusiasts. More and more people take part in table tennis after school, after work and on rest days. With the improvement of competitive technology, the quality requirements of table tennis are also increasing. higher. Seamless table tennis is a new invention following the traditional seamed ball, which has many advantages, but so far, there is no effective means for real-time online detection of various performance indicators of seamless table tennis. Manual screening from a large number of products is inefficient, the false detection rate is high, and the quality cannot be guaranteed. [0003] According to the current late...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the initial velocity of the ping-pong ball affects the time interval between the two light-blocking times, which brings detection errors; secondly, the light-controlled detection method cannot judge the uniformity of the bounce of the entire ping-pong ball.

The sound control method is similar to the light control method, and has the same disadvantages; the slant plate pit detection method, the free-falling table tennis ball bounces through the slant plate and falls into the bunker, and the rebound height is calculated by empirical formulas by measuring the position of the bunker. The biggest disadvantage of the method is that it cannot be measured online in real time, which limits its popularization and application; in addition, the camera method requires a high-speed camera, which is expensive, and there is no effective way to capture the image when the table tennis ball bounces to the highest position

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