Embedded System Design to Control Active Ankle Foot Orthosis

Kanthi , M and George, V I and Mruthyunjaya, H.S (2014) Embedded System Design to Control Active Ankle Foot Orthosis. Journal of Consumer Electronic Times, 3 (1). pp. 206-214. ISSN 2304-1854 (online) 2304-1846 (Print)

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Active ankle foot orthosis is used to support or restore the complex ankle foot movements of the subjects with neurological or muscular pathologies. Neurological impairments are due to stroke, polio, multiple sclerosis, spinal cord injuries, and cerebral palsy. This paper aims at designing an embedded system for active ankle foot orthosis, which can be used in the case of hemiparesis subjects as a rehabilitation aid. The designed orthosis can aid both dorsiflexion and plantar flexion movements. The ATmega328 microcontroller is used to control the position of the actuator. The microcontroller generates pulse width modulation signals according to the outputs given from the tactile sensors. The sensors are mounted inside the soles of a healthy leg and the orthotic device. During each gait cycle the microcontroller estimates the position of the foot in relation to the gait phases based on the information obtained by the tactile sensors and the adaptation of the joint torque with the help of an actuator.

Item Type: Article
Uncontrolled Keywords: Embedded System Design; Ankle Foot Orthosis; Orthotic; Gait; Tactile Sensor; Arduino Uno; Microcontroller
Subjects: Engineering > MIT Manipal > Electronics and Communication
Engineering > MIT Manipal > Instrumentation and Control
Depositing User: MIT Library
Date Deposited: 24 Jan 2014 11:25
Last Modified: 24 Jan 2014 11:25
URI: http://eprints.manipal.edu/id/eprint/138486

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