AXLE WEIGHING FOR IN-MOTION VEHICLES USING SIMPLE FIR FILTERS

K. Fukuda, K. Yoshida, T. Kinugasa, S. Fujimoto, K. Kanazawa

Abstract

Real time design methods of FIR filters for weigh-in- motion have been proposed in order to improve the accuracy of measured axle weights. However, if the order of the filter is inappropriately set, the method fails to estimate the frequency of the vibratory component. The application of a reduced-tap sparse FIR filter, which has only one non-zero coefficient to be determined, has recently been studied for preventing miscalculation of axle weights. The latest results show that the adoption of the filter is very effective for estimating virtual vibration and static axle weights of weighing in-motion vehicles.

Keywords

vehicle, axle weighing, LS-WIM

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IMEKO-WC-2012-TC3-P9.pdf

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IMEKO TC

TC3 - Measurement of Force, Mass, Torque, and Gravity

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