Patent ID: 9080860
Filing Date: 2015-07-14
Classification: G01B,G01M

Abstract:
1. A method for detecting the shape or dimensions of a wheel on vehicle repair workshop machines, comprising the stages of: projecting a line of light onto the surface of at least a portion of a wheel mounted and rotating on a vehicle repair workshop machine, said line of light being generated by at least one light emitter; acquiring a two-dimensional image of said projected line of light, said acquisition stage being performed by at least one light sensor; and processing said acquired image to determine the profile of said portion of the wheel; said method including at least two stages of complete rotation of said wheel and a distributed detection stage, wherein said projection stage and acquisition stage are performed in correspondence to a group of first angular positions of said wheel during the first of said rotation stages, and in correspondence to a group of second angular positions of said wheel during the second of said rotation stages, wherein said group of first angular positions differs from said group of second angular positions inasmuch as at least one of said first angular positions is not present in said group of second angular positions or inasmuch as at least one of said second angular positions is not present in said group of first angular positions, and wherein said light sensor at every revolution of the wheel is not forced to detect images for each angular position of the wheel but only for a limited number of these positions, the acquisition in the other angular positions being done during the subsequent rotations.