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    Magnetic wheeled climbing robot: Design and implementation
    ( 2013) Manuel Santos Silva ; Barbosa,RS ; Oliveira,ALC ; 5655
    This paper presents a climbing robot, with wheeled locomotion and adhesion through permanent magnets. This machine was developed to be used in the inspection of several types of man-made ferromagnetic structures, such as towers for wind turbines, fuel storage tanks, ship hulls, etc., in order to, for instance, detect weaknesses due to corrosion. In this article are presented the main aspects taken into consideration for its design, as well as several constructive aspects, among which are detailed its mechanical and electrical construction, the implemented control architecture and the Human-Machine Interface (HMI) for its control. The distinguishing characteristic of this robot is its dynamic adjustment system of the permanent magnets to assure the machine adhesion to the surfaces when crossing slightly irregular and curved surfaces with a large radius. © 2013, Springer Science Business Media Dordrecht.
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    Development of an AGV controlled by fuzzy logic
    ( 2013) Barbosa,RS ; Manuel Santos Silva ; Osório,DJ ; 5655
    This paper presents the development of a behavior-based AGV using fuzzy logic. A robot platform and a fuzzy logic controller (FLC) are developed for the embodiment of different behaviors. Experimental results are given to assess the performance of the AGV and to validate the proposed design schemes for its construction and control. © 2013, Springer Science Business Media Dordrecht.
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    Classification of an Agrosilvopastoral System Using RGB Imagery from an Unmanned Aerial Vehicle
    ( 2019) Guimarães,N ; Emanuel Peres Correia ; Marques,P ; Telmo Oliveira Adão ; Pádua,L ; Sousa,JJ ; Sousa,A ; 5653 ; 5490
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    The SPIDERobot: A Cable-Robot System for On-site Construction in Architecture
    ( 2016) Sousa,JP ; Palop,CG ; Moreira,E ; Andry Maykol Pinto ; Lima,J ; Costa,P ; Pedro Gomes Costa ; Germano Veiga ; Paulo Moreira,A
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    The K-framed quadtrees approach for path planning through a known environment
    ( 2018) Ana Rita Rodrigues ; Pedro Gomes Costa ; Lima,J
    One of the most important tasks for a mobile robot is to navigate in an environment. The path planning is required to design the trajectory that generates useful motions from the original to the desired position. There are several methodologies to perform the path planning. In this paper, a new method of approximate cells decomposition, called K-Framed Quadtrees is present, to which the algorithm A ? is applied to determine trajectories between two points. To validate the new approach, we made a comparative analysis between the present method, the grid decomposition, quadtree decomposition and framed quadtree decomposition. Results and implementation specifications of the four methods are presented. © 2018, Springer International Publishing AG.