期刊名称：Carptahian Journal of Electronic and Computer Engineering
印刷版ISSN：1844-9689
电子版ISSN：2343-8908
出版年度：2012
卷号：5
期号：1
页码：4
语种：English
出版社：UT Press Publishing House, Technical University of ClujNapoca, Romania
摘要：Distance measurement is necessary in various areas and applications. This project is an alternative to GPS and is able to measure the distance traveled by a person inside a building. An algorithm was implemented for the purpose of distance measuring. The measuring is done by integrating twice the acceleration, but the results are not satisfactory because the errors are accumulating much faster than expected. The second method implemented was an algorithm that measures the distance traveled by counting the number of steps. The step distance determination was made by an algorithm that takes the angle between legs made by the accelerometer and gyroscope. To eliminate errors a complementary filter was used. The advantages in using this method are low cost and portability sensor circuit.
