An on-line wheel diameter measurement method for tramcars comprises the steps of (1), obtaining images and providing a set of imaging modules, wherein the imaging modules comprise a first high-speed camera, a second high-speed camera, a first laser light source, a second laser light source and a locating sensor, and the distance between the view field center of the first high-speed camera and the view field center of the second high-speed camera is L in the track direction; (2), detecting the offset distance and triggering the first high-speed camera and the second high-speed camera to take pictures of a wheel when the locating sensor senses that the lowest point of the wheel presses a track corresponding to the locating sensor; (3), calculating the diameter D of the wheel according to the offset distance of the view field centers corresponding to end points P1 and P2 in the pictures and the distance L between the view field center of the first high-speed camera and the view field center of the second high-speed camera. According to the on-line wheel diameter measurement method, the diameter of the wheel of the tramcars can be directly measured, measurement is accurate, the error is small, and accumulated errors caused by indirect measurement are avoided. The on-line wheel diameter measurement method is simple and fast.
On-line wheel diameter measurement method for tramcars
2016-02-03
Patent
Elektronische Ressource
Englisch
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