Archive for Апрель 5th, 2011

Sensor fusion applied to position estimation and gait identification of an ankle-foot orthosis

Дата: Апрель 5th, 2011 Автор:
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  • Тип контента: Научная статья
  • Номер документа: 4021
  • Название документа: Sensor fusion applied to position estimation and gait identification of an ankle-foot orthosis
  • Номер (DOI, IBSN, Патент): 10.1109/BRC.2011.5740664
  • Изобретатель/автор: Siqueira, A.A.G., Caltran, C.
  • Правопреемник/учебное заведение: Dept. of Mech. Eng., Univ. of Sao Paulo at Sao Carlos, Sao Carlos, Brazil
  • Дата публикации документа: 2011-04-05
  • Страна опубликовавшая документ: Бразилия
  • Язык документа: Английский
  • Наименование изделия: Не заполнено
  • Источник: http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5740
  • Вложения: Нет
  • Аналитик: Helix

This paper presents a sensor fusion strategy to estimate the absolute position and to identify the gait events of an active ankle-foot orthosis (AAFO). Sensor fusion is implemented using a Kalman filter with the signals of a gyroscope and an accelerometer, both present in an inertial measurement unit (IMU), besides the signals of three force sensitive resistors (FSRs) mounted in a sole of shoe. For correcting the gyroscope-based position, the redundant accelerometer-based position must be used only under reliable conditions, which are obtained by a proposed switching logic to enable the Kalman filter. Experimental results of the AAFO confirm the efficiency of the proposed sensor fusion strategy.

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