Patent ID: 7795604
Filing Date: 2010-09-14
Classification: B60M,G01B,G01N

Abstract:
1. A trolley wire wear measurement device by image processing, comprising: a lighting means that illuminates a trolley wire; a line sensor that is arranged vertically and upward on a roof of an inspection car such that the line sensor looks up to the trolley wire, and receives a reflected light from a worn portion of the trolley wire; a line sensor picture image production means that produces a line sensor picture image on a basis of the reflected light received by the line sensor; a binary operation process means that gets a binary-operated line sensor picture image by performing a binary operation on the line sensor picture image; a noise elimination process means that eliminates noises of the binary-operated line sensor picture image; an edge detection process means that detects an edge of the worn portion of the trolley wire, as edge data, from the noise-eliminated binary-operated line sensor picture image; a trolley wire worn portion width calculation process means that calculates a width of the worn portion of the trolley wire on a basis of the edge data and height data of the trolley wire; and a half mirror that is arranged between the line sensor and the trolley wire, wherein a light applied from the lighting means is reflected upward through the half mirror and illuminates the trolley wire, while the picture image including the trolley wire is, from the reflected light, captured by the line sensor and imaged.