An Automatic Train Wheel Figuration Measure System

In this article, the amelioration of automatic train wheel figuration measure instrument using CCD detectors has been introduced. The new instrument substituted image CCD for liner CCD to measure the tow sides of wheels. It also improve the part of the circuit and the whole software system, eliminate the hidden trouble of the whole system. After measured the train wheel practically for many times, we got many satisfying data, which make clear that the instrument can reach user's demands.The main tasks of this thesis are listed as follows:Analyzing the data which were gained practically ,then analyze the reason for these. After that bring forward the way to solve it. And then rebuild the whole system.The image CCD replace the liner CCD as the detectors to measure the wheel. Design the machine to place them. In the circuit, programmable logic devices are used to produce key signal, which can make us debug the circuit easily. Developing the software system, which can control train wheel, demarcate parameters, grab frames, image processing automatically measure dimensions, administer the controllers and at last print the data forms.Fixing and debugging the instrument, making experiments and analyzing errors.