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ABSTRACT: In this paper a turtle's hydrofoil 2 DoF's mechanism (degrees of freedom) is implemented and tested in a water channel as a propulsion system for an Autonomous Underwater Vehicle (AUV). The experiments carried out showed an optimal empirical value of the angle of attack for the turtle's hydrofoil that is compared with the theoretical value. The hydrofoil path used in the tests was a linear displacement and the optimization of this path will be analyzed in future works.
OCEANS, 2011 IEEE - Spain; 07/2011
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ABSTRACT: The following paper introduces the work conducted to create a relative virtual mouse based on the interpretation of the head movements through a low cost camera. This virtual device is designed as a non-contact alternative for people with mobility impairments. First validation results show performance close to a digital joystick.
Human System Interactions, 2008 Conference on; 06/2008
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ABSTRACT: The following paper introduces the work conducted to create a relative virtual mouse based on the interpretation of head movements and face gesture through a low cost camera and the optical flow of the images. This virtual device is designed specifically as an alternative non-contact pointer for people with mobility impairments in the upper extremities and reduced head control. The proposed virtual device was compared with a conventional mouse, a touchpad and a digital joystick. Validation results show performances close to a digital joystick but far away from a conventional mouse.
Journal of Universal Computer Science. 01/2008; 14:3127-3141.
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ABSTRACT: Floor cleaning is a typical mobile robot application. Most commercial cleaning mobile robots designed for domestic applications use random path-planning algorithms and very few sensors and the critical problem is to decide when the cleaning is already finished or the coverage completed. In this paper, we propose some methods to estimate the size of the cleaning area using only the information of encoders and collision detectors. To this end, three typical rooms have been tested with and without furniture. Results show the great influence of furniture distribution in the estimation of the area of the room. Average estimation errors under plusmn20% can be expected for empty rooms and from 0% to -70% in the case of rooms with furniture.
Intelligent Signal Processing, 2007. WISP 2007. IEEE International Symposium on; 11/2007
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