Modelo Fuzzy Takagi-Sugeno para controle do ângulo de articulação do joelho de pacientes paraplégicos

Autor:	Luiz Henrique Ravagnani Bueno, Dayanne Nayara Telles de Proença Diogo, Márcio Roberto Covacic, Ruberlei Gaino
Rok vydání:	2012
Předmět:	Nonlinear system Control theory Feedback control Control system Functional electrical stimulation Knee Joint Linear matrix Fuzzy logic Signal Mathematics
Zdroj:	Semina: Ciências Exatas e Tecnológicas. 32:215-228
ISSN:	1679-0375 1676-5451
Popis:	In this paper, a feedback control has been developed, using functional electrical stimulation in order to control the movement of the leg of a paraplegic patient. The control design uses Takagi-Sugeno fuzzy models, which solves classes of nonlinear systems. The problem is described by linear matrix inequalities (LMI), reaching the specifications of stability according to Lyapunov theorem, decay rate and restriction on the input signal. The control system was designed to vary the knee joint angle from 0o to 45o by electrical stimulation of the quadriceps muscle. The feedback signal is related to the knee joint angle ( ? v ), stabilizing it at 45o.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a42c0d225a9e64554bb2f49442669f6c https://doi.org/10.5433/1679-0375.2012v33n2p215 Zobrazit plný text záznamu