Mobile Robot
Mostrando 13-24 de 71 artigos, teses e dissertações.
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13. Hardware/Software codesign of particle filter for real time localization of mobile robots / Co-projeto de hardware/software do filtro de partículas para localização em tempo real de robôs móveis
Sophisticated techniques for estimation of models based on simulation, particle filters or Sequential Monte Carlo Methods, were recently used to solve many difficult problems in the field of mobile robotics. However, the success of particle filters was limited to the computation of parameters in low dimensionality spaces. The current research efforts in mobi
Publicado em: 2010
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14. Aplicação da rede GTSOM para navegação de robôs móveis utilizando aprendizado por reforço / Using the GTSOM network for mobile robot navigation with reinforcement learning
Neste trabalho será descrita uma arquitetura de agente robótico autônomo projetada para ser capaz de criar uma representação de estado do ambiente e de realizar o aprendizado de tarefas simples em cima desta representação. A rede GTSOM (BASTOS, 2007) foi selecionada como método para classificação de estados. Sua tarefa é transformar os dados multi
Publicado em: 2010
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15. Módulo de auto-localização para um agente exploratório usando Filtro de Kalman / Self-localization module for exploratory agent using kalman filter
Construir um robô capaz de realizar tarefas sem qualquer interferência humana é um dos maiores desafios da Robótica Move!. Dispondo apenas de sensores, um robô autônomo precisa explorar ambientes desconhecidos e, simultaneamente, construir um mapa confiável a fim de se localizar e realizar a tarefa. Na presença de erros de odometria, o robô não con
Publicado em: 2010
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16. Adaptive complementary filtering algorithm for mobile robot localization
As a mobile robot navigates through an indoor environment, the condition of the floor is of low (or no) relevance to its decisions. In an outdoor environment, however, terrain characteristics play a major role on the robot's motion. Without an adequate assessment of terrain conditions and irregularities, the robot will be prone to major failures, since the e
Journal of the Brazilian Computer Society. Publicado em: 2009-09
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17. 2D laser-based probabilistic motion tracking in urban-like environments
All over the world traffic injuries and fatality rates are increasing every year. The combination of negligent and imprudent drivers, adverse road and weather conditions produces tragic results with dramatic loss of life. In this scenario, the use of mobile robotics technology onboard vehicles could reduce casualties. Obstacle motion tracking is an essential
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2009-06
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18. Controle de movimentos coordenados de robôs móveis quando os robôs assumem a liderança de maneira aleatória / Control of coordinated movements of mobile robots when the robots take the lead in a random
This dissertation proposes a study on the automatic control of dynamic systems to the problem of coordination of mobile robots. The coordinated motions are performed with the robots following a leader, and any robot of the formation can assume the leadership randomly. The robots exchange informations according to a pre-specified communication directed graph
Publicado em: 2009
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19. Um sistema de localização robótica para ambientes internos baseado em redes neurais. / An indoor robot localization system based on neural networks.
Nesta pesquisa são estudados aspectos relacionados à problemática da localização robótica, e um sistema de localização robótica é construído. Para determinação da localização de um robô móvel em relação a um mapa topológico do ambiente, é proposta uma solução determinística. Esta solução é empregada a fim de prover localização pa
Publicado em: 2009
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20. COMPARAÇÃO ENTRE CONTROLES LOOK-AND-MOVE E SERVO-VISUAL UTILIZANDO TRANSFORMADAS SIFT EM MANIPULADORES DO TIPO EYE-IN-HAND / COMPARISON BETWEEN LOOK-AND-MOVE AND VISUAL SERVO CONTROL USING SIFT TRANSFORMS IN EYE-IN-HAND MANIPULATOR SYSTEMS
Computer vision can be used to calibrate and self-localize robots. There are many applications in self-localization and control applied to industrial manipulators and mobile robots. In particular, visual control can be useful in submarine interventions, where a robotic manipulator is mounted on a Remote Operated Vehicle (ROV) to execute tasks at high depths,
Publicado em: 2009
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21. An approach to avoid obstacles in mobile robot navigation: the tangential escape
An approach to guide a mobile robot from an initial position to a goal position avoiding any obstacle in its path, when navigating in a semi-structured environment, is proposed in this paper. Such an approach, hereinafter referred to as tangential escape, consists in changing the current robot orientation through a suitable combination of the values of the a
Sba: Controle & Automação Sociedade Brasileira de Automatica. Publicado em: 2008-12
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22. Auto-localização e construção de mapas de ambiente para robôs móveis baseados em visão omnidirecional estéreo. / Simultaneous localization and map building for mobile robots with omnidirectional estereo vision.
This project aims the development of a system for self localization and environment map building for mobile robots in a structured environment. The map is built from images acquired by an omnidirectional stereo system with a hyperbolic double lobed mirror. From a single acquired image, using stereo vision algorithms, the environment around the robot is tridi
Publicado em: 2008
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23. Ambiente de programação de robôs móveis / Mobile robot programming environment
This work proposes a Mobile Robot Programming Environment focused in the Portuguese language, which is able to attend different user categories and where the user can work textually and graphically. The programming environment contains three different modules: the C module, or C editor; the Assembly module, or Assembly editor; and the block module, which con
Publicado em: 2008
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24. Synthesis of autonomous controllers in mobile robotics through bio-inspired computing / Sintese de controladores autonomos em robotica movel por meio de computação bio-inspirada
Novel techniques for autonomous robot navigation aim at fulfilling the growing demand for mobile robots in multiple segments of society and in a plethora of tasks. The challenges involved in developing the system which controls the robot allow to say that the intelligence embedded in the current robots is found to be still incipient and limited. In this work
Publicado em: 2008