Research On Signal Of Wheel Tread Irregularities Detection System

The problem that how to measure the fault of the tread profile is concerned all along and perpetual studied and improved. That is because the irregularities of tread profile are the key factor of influencing the safety, stabilization and economy of running. The article goes into particulars of on-line measurement equipment of tread irregularities. It makes use of acceleration sensors which capture the collision acceleration between the wheel and rail, and also by the use of electric charge amplifier, we can get the voltage which corresponds to the acceleration, then by dealing with the data, we can estimate the degree of the tread irregularities.The detective devices system contains the sensors fixed up at the side of railway and computer acted as controlling. A logical system is set to eliminate the interferon between two wheels and find out the irregular wheels. This system also introduces computer for the auto-supervising and it consists of an auto-controlling system for manipulation and data processing which uses computer as its centre part. It can provide reliable technological guarantee for repair and make wheel detection up to modern level.In the segment of data process and software design, because the wavelet analysis has so strong power to analyze the non-linear steady signal, so we use Moultrie solution analysis to process the data we collected. At the same time, by constructing the signal after compose them, we filtrate the high frequency composition to optimize the signal. After analyzing a great deal of data, we educe some outcome by experience. Combing the principle of determine the position of the wheel, we find out the irregularities of tread and make some report forms in this paper.The characters of the equipment are higher automation, efficiency, easy operation, credible results, and intuitionist output and can realize on-line measurement. It has wide prospect.