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- Title
Fast Geometric T2-Fuzzy Based Improved Lower Extremities Stimulation Response.
- Authors
Wicaksono, Hendi
- Abstract
This study emphasizes the use of type-2 fuzzy (T2-Fuzzy) adaptive proportionalintegrative- derivative (PID) control to replace the previous research. The problem that emerged in previous studies is the achievement of the target angle is slow, and the oscillations in the achievement of the target blade. Alleged causes of the oscillations due to the early adaptive PID have not been enough to overcome the nonlinearity lower extremities. The difference between methods of using T2-Fuzzy with others T2-Fuzzy lies in the method defuzzification. This research used defuzzification fast geometric that maintain the level of T2-Fuzzy uncertainty, can also be applied in real-time. A functional electrical stimulation (FES) stimulator designed and connected to the computer as a processing T2-Fuzzy. It stimulates lower extremities of normal subjects each cycle, and the computer recorded the point of achievement as measured using a goniometer sensors mounted on a knee joint. The results of the achievement of the target point of the lower extremities of range at three initial cycles, and no oscillations occur in the achievement of the angle. It also found that T2-Fuzzy able to immediately restore the point of achievement when the external parameters of control occurs.
- Subjects
FUZZY systems in medicine; FUZZY logic; LEG abnormalities; GAIT in humans; OSCILLATIONS; ELECTRIC stimulation; OSCILLATION theory of functional differential equations; GONIOMETERS; PARALYSIS; LOCOMOTION
- Publication
Telkomnika, 2010, Vol 8, Issue 3, p207
- ISSN
1693-6930
- Publication type
Article
- DOI
10.12928/telkomnika.v8i3.622