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The Height-Adaptive Parameterized Step Length Measurement Method and Experiment Based on Motion Parameters

Yanshun Zhang,Yingyue Li,Chuang Peng,Dong Mou,Ming Li,Wen Wang

Published 2018 in Italian National Conference on Sensors

ABSTRACT

In order to tackle the inaccurate step length measurement of people with different heights and in different motion states, a height-adaptive method of step length measurement based on motion parameters is proposed in this paper. This method takes people’s height, stride frequency, and changing accelerometer output while walking into integrated consideration, and builds a dynamic and parameterized model of their step length. In this study, these parameters were calibrated with thirty sets of experiment data from people with different heights and in different motion states, which were then verified experimentally by motion data of randomly selected subjects, regardless of speed and height. The experiment results indicate that the height-adaptive step length measurement was realized, thus eliminating the influence of height exerted on step length measurement.

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