Mobile Robot
Mostrando 49-60 de 71 artigos, teses e dissertações.
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49. Mapeamento de ambientes estruturados com extração de informações geométricas através de dados sensoriais
The objective of this thesis is proposes a method for a mobile robot to build a hybrid map of an indoor, semi-structured environment. The topological part of this map deals with spatial relationships among rooms and corridors. It is a topology-based map, where the edges of the graph are rooms or corridors, and each link between two distinct edges rep
Publicado em: 2006
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50. Aprendizagem por reforço na adaptação a obstáculos em navegação robótica autônoma não-estruturada baseada em imagens / Reinforcement learning for obstable avoidance in image based robotic autonomous non-structured navigation
In the last decades, robotic has become an important role for society, specially in the manufacturing industry. In recent times, applications of mobile robots, from simple toys to planets explorations, has shown how promising will be the use of these tools in a close future. Though, the cost and complexity in developing mobile robots nowadays, which should b
Publicado em: 2006
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51. Polinomial curves estimation in image sequences to mobile robot navigation / Estimação de curvas polinomiais em sequências de imagens para navegação de robôs móveis
Neste trabalho, foi implementado um sistema de visão computacional para navegação de robôs móveis baseado em rastreamento de trajetórias. Essas trajetórias são formadas por marcas artificiais adicionadas ao teto do ambiente na forma de curvas e retas. Para marcar o teto foram utilizadas cordas e fita adesiva escuras fixadas ao teto formando retas e c
Publicado em: 2006
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52. Inteligência coletiva aplicada a problemas de robótica móvel
This work involves concepts of evolutionary algorithms and swarm intelligence with a purpose of off-line path planning for a mobile robot. The selected evolutionary algorithm is a genetic algorithm, and the swarm intelligence techniques are particle swarm, ant colony, bacteria colony and artificial immunological system. These techniques were selected for a c
Publicado em: 2005
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53. Posicionamento e movimentação de um robô humanóide utilizando imagens de uma câmera móvel externa
This work proposes a method to localize a simple humanoid robot, without embedded sensors, using images taken from an extern camera and image processing techniques. Once the robot is localized relative to the camera, supposing we know the position of the camera relative to the world, we can compute the position of the robot relative to the world. To make the
Publicado em: 2005
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54. Implementation of an Ethernet 10/100Mbps core with Avalon interface for Nios II processor from Altera / Implementação de um módulo Ethernet 10/100Mbps com interface Avalon para o processador Nios II da Altera
This work presents the implementation of a network Ethernet 10/100Mbps core with interfaces to Avalon bus for using with the Nios II processor from Altera. The Ethernet technology was implemented in reconfigurable computing and was based in the OpenCores MAC 10/100 available on Internet. The project was developed for embedded systems applications, more speci
Publicado em: 2005
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55. Agente topológico de aprendizado por reforço / Topological reinforcement learning agent
Reinforcement Learning (RL) methods have shown to be a good choice for decision-making problems due to their flexible and adaptive characteristics. Despite such promising features, RL methods often have their practical application restricted to small or medium size (at state, or state-action, space) problems mainly because of their standard strategies for va
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/04/2004
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56. Agente topológico de aprendizado por reforço / Topological reinforcement learning agent
Reinforcement Learning (RL) methods have shown to be a good choice for decision-making problems due to their flexible and adaptive characteristics. Despite such promising features, RL methods often have their practical application restricted to small or medium size (at state, or state-action, space) problems mainly because of their standard strategies for va
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/04/2004
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57. Model predictive disturbance rejection during cooperative mobile robot assembly tasks
This paper addresses the problem of disturbance compensation for the successful assembly of structures by mobile field robots. A control architecture, consisting of a linear PID joint controller with model predictive feed-forward compensation for mobile base motions and interactive-force disturbance rejection is discussed. Object insertion is achieved by pre
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2004-09
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58. Desvio tangencial de obstáculos para um robô móvel navegando em ambientes semi-estruturados
This thesis proposes a new strategy for a mobile robot to deviate from obstacles while navigating in a semi-structured environment. The proposed control architecture is based on a reactive approach, thus demanding low computational eort. It allows the robot to navigate from a starting point to a destination point without colliding to any obstacle in its path
Publicado em: 2004
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59. Evidence grids with omnidirectional stereovision for mobile robots. / Grades de evidência com visão estéreo omnidirecional para robôs móveis.
Autonomous mobile robots depend on information acquired with its sensors to make decisions during its task. The use of vision systems provide a large amount of data about the environment in which the robot is. Particularly, an omnidirectional vision systems provide information in all directions of the environment to the robot with just one image. Through the
Publicado em: 2004
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60. Uma abordagem comportamental para inserção de robôs em ambientes culturais
In this work, we propose methodologies and computer tools to insert robots in cultural environments. The basic idea is to have a robot in a real context (a cultural space) that can represent an user connected to the system through Internet (visitor avatar in the real space) and that the robot also have its representation in a Mixed Reality space (robot avata
Publicado em: 2004