Qualitative Autonomous Navigation System Employing Event Driven-Fuzzy Cognitive Maps and Fuzzy Logic
نویسندگان
چکیده
This work develops a knowledge based system to autonomous navigation using Fuzzy Cognitive Maps (FCM). A new variant of FCM, named Event Driven-Fuzzy Cognitive Maps, (ED-FCM) is used to model decision tasks and/or make inference in the robot or mobile navigation. Fuzzy Cognitive Maps is a tool that modeling qualitative knowledge in minds maps structured way through concepts and causal relationships. The proposed model allows representing the dynamic behavior of the mobile in presence of environment changes. A brief review of correlated works in the navigation area by use of FCM is presented. Some simulation results are discussed highlighting the ability of the mobile to navigate among obstacle (navigation environment). A comparative with Fuzzy Logic and future works are also addressed. Keywords Mobile Robot Navigation, Fuzzy Cognitive Maps, Inference Systems, Intelligent decision systems. Resumo Este trabalho apresenta um desenvolvimento de um sistema autônomo inteligente de navegação baseado em Mapas Cognitivos Difusos (FCM). Uma nova arquitetura FCM, denominada Event Driven-Fuzzy Cognitive Maps (ED-FCM), é usada para modelar tarefas de decisões e/ou fazer inferências em um robô ou veiculo de navegação. FCM é uma ferramenta empregada para modelar conhecimento qualitativo em uma estrutura baseada em mapas mentais através de conceitos e relações causais. O modelo proposto permite representar comportamento dinâmico através de mudanças no cenário. Uma breve revisão de trabalhos correlatos da área de navegação empregando FCM é apresentada. Simulações mostram desempenho e resultados para se avaliar a navegação entre obstáculos. Uma comparação com controladores fuzzy é também realizada. Palavras-chave Navegação autônoma, Mapas Cognitivos Difusos, Máquinas de Inferência, Sistemas Inteligentes em toma-
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