Control design for active ankle foot orthosis with the application of fuzzy logic

Kanthi , M and George, V I and Mruthyunjaya, H.S (2014) Control design for active ankle foot orthosis with the application of fuzzy logic. Journal of Control Engineering and Technology (JCET), 4 (1). pp. 50-57. ISSN 2225-6598

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Abstract

This paper presents the control design of an ankle foot orthosis for the disabled gait. Ankle foot orthosis is an orthotic device intended to assist or to restore the motions of the ankle foot complex. It uses an actuator to assist the ankle movement as required, during the swing phase of the leg in each gait cycle. The controllers used in the conventional ankle foot orthosis to control the actuator, does not use the property of synchronization of the feet and the main focus is on drop foot gait correction. In this article, control design for active ankle foot orthosis with the application of fuzzy logic is presented. The logic is developed to control the disabled gait by using the property of symmetry in the foot movements. The gait patterns are monitored through National Instrument’s data acquisition system which is interfaced with a gyro sensor.The sensor data is then fed as an input to the fuzzy logic controller which generates the control signal for the actuator in real time.

Item Type: Article
Uncontrolled Keywords: Ankle foot orthosis; Gait; Gyro-sensor; Fuzzy logic Control; Proportional Integral Derivative control; LabVIEW
Subjects: Engineering > MIT Manipal > Electronics and Communication
Engineering > MIT Manipal > Instrumentation and Control
Depositing User: MIT Library
Date Deposited: 19 Dec 2013 11:11
Last Modified: 19 Dec 2013 11:11
URI: http://eprints.manipal.edu/id/eprint/138039

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