基于机器视觉的火车车轮在轨测量

在机器视觉测量系统中,满足动态测量要求和分析影响测量精度的因素是实现在线测量的重要环节。本文利用合肥工业大学研制的一套车轮轮缘踏面检测系统,通过试验模拟车轮在铁轨上的实际运行情况,建立车轮位移和被测轮缘踏面参数之间的数学模型,分析火车不同速度对这些参数测量精度的影响,为现场测量提供理论依据。

Measurement of Train-Wheel on Rail Way Based on Machine Vision

In the machine vision measurement system, to satisfy the demand of dynamic measurement and to analyze the main factors that influence on the measurement accuracy are the important parts in the on-line measurement. A measurement system for the wheel flange and tread designed by Hefei University of Technology is u~d to simulate the actual situation of wheel wiling on railway . The mathematics modeling between the wheel displacement and the measured parameters of wheel flange and tread is established. The influence of different speed of wheel on the accuracy of measured parameters is analyzed. All works are useful for on-line measurement of train wheel.