Robot Calibration
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Theoretical and practical aspects of robot calibration with experimental verification
One of the greatest challenges in today's industrial robotics is the development of off-line programming systems that allow drastic reduction in robots' reprogramming time, improving productivity. The article purpose is to pave the way to the construction of generic calibration systems easily adapted to any type of robot, regardless their application, such a
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-03
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2. CALIBRAGEM VISUAL IN SITU DE MANIPULADORES ROBÓTICOS COM APLICAÇÃO EM INTERVENÇÕES SUBMARINAS / VISION BASED IN-SITU CALIBRATION OF ROBOTS WITH APPLICATION IN SUBSEA INTERVENTIONS
The majority of today`s industrial robots are programmed to follow a predefined trajectory. This is sufficient when the robot is working in a fixed environment where all objects of interest are situated in a predetermined position relative to the robot base. However, if the robot`s position is altered all the trajectories have to be reprogrammed for the robo
Publicado em: 2007
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3. Um método para determinação da profundidade combinando visão estéreo e autocalibração para aplicação em robótica móvel
This work proposes a method to determine the depth of objects in a scene using a combination between stereo vision and self-calibration techniques. Determining the rel- ative distance between visualized objects and a robot, with a stereo head, it is possible to navigate in unknown environments. Stereo vision techniques supply a depth measure by the combinati
Publicado em: 2007
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4. An investigation of singularities in robot kinematic chains aiming at building robot calibration models for off-line programming
Robot Calibration is a term applied to the procedures used in determining actual values that describe the geometric dimensions and mechanical characteristics of a robot or multibody structure. A robot calibration system must consist of appropriate robot modeling techniques, accurate measurement equipment, and reliable model parameter determination methods. F
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2005-06
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5. 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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6. Experimental validation of a 3-D vision-based measurement system applied to robot calibration
One of the problems that slows the development of off-line programming is the low static and dynamic positioning accuracy of robots. Robot calibration improves the positioning accuracy and can also be used as a diagnostic tool in robot production and maintenance. A large number of robot measurement systems are now available commercially. Yet, there is a dear
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2002-07
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7. Desenvolvimento de um Sistema de Visão Global para uma Frota de Mini-Robôs Móveis
Navigation based on visual feedback for robots, working in a closed environment, can be obtained settling a camera in each robot (local vision system). However, this solution requests a camera and capacity of local processing for each robot. When possible, a global vision system is a cheapest solution for this problem. In this case, one or a little amount of
Publicado em: 2001
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8. Optimized Robot Calibration Using a Vision-Based easurement System With a Single Camera
Robot calibration plays an increasingly important role in robot production as well as in robot operation and integration within computer integrated manufacturing or assembly systems. The production, implementation and operation of robots are issues where robot calibration results can lead to significant accuracy improvement and/or cost-savings. The thesis de
Publicado em: 1999