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ISEP - LSA - Laboratório de Sistemas Autónomos

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http://hdl.handle.net/10400.22/171
LSA is a R&D unit from ISEP the Engineering School of Porto Polytechnic. It conducts research in autonomous systems and related areas such as navigation, control and coordination of multiple robots.The laboratory activity is developed in four lines of work: R&D programs; Educational project; Dissemination projects; Strategic positioning projects for the school ISEP/IPP.

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Browsing ISEP - LSA - Laboratório de Sistemas Autónomos by Author "Almeida, C."

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  • Air and Underwater Survey of water enclosed spaces for VAMOS! Project
    Publication . Almeida, J.; Ferreira, A.; Matias, B.; Dias, A.; Martins, A.; Silva, F; Oliveira, J.; Sousa, P.; Moreira, M.; Miranda, T.; Almeida, C.; Silva, E.
    This paper addresses a three-dimensional (3D) reconstruction of a flooded open pit mine with an autonomous surface vehicle (ASV) and unmanned aerial vehicle (UAV). The ROAZ USV and the Otus UAV were used to provide the underwater bathymetric map and aerial 3D reconstruction based from image data. This work was performed wihtin the context of the European researcj project VAMOS with the objective of developing robotic tools for efficient underwater mining
    2016Journal article Restricted access Show more
  • Autonomous bathymetry for risk assessment with ROAZ robotic surface vehicle
    Publication . Ferreira, H.; Almeida, C.; Martins, A.; Almeida, J.; Dias, N.; Dias, A.; Silva, E.
    The use of unmanned marine robotic vehicles in bathymetric surveys is discussed. This paper presents recent results in autonomous bathymetric missions with the ROAZ autonomous surface vehicle. In particular, robotic surface vehicles such as ROAZ provide an efficient tool in risk assessment for shallow water environments and water land interface zones as the near surf zone in marine coast. ROAZ is an ocean capable catamaran for distinct oceanographic missions, and with the goal to fill the gap were other hydrographic surveys vehicles/systems are not compiled to operate, like very shallow water rivers and marine coastline surf zones. Therefore, the use of robotic systems for risk assessment is validated through several missions performed either in river scenario (in a very shallow water conditions) and in marine coastlines.
    2009-05Conference object Restricted access Show more
  • ROAZ Autonomous Surface Vehicle Design and Implementation
    Publication . Ferreira, Hugo; Martins, A.; Dias, A.; Almeida, C.; Almeida, J. M.; Silva, E. P.
    The design of an Autonomous Surface Vehicle for operation in river and estuarine scenarios is presented. Multiple operations with autonomous underwater vehicles and support to AUV missions are one of the main design goals in the ROAZ system. The mechanical design issues are discussed. Hardware, software and implementation status are described along with the control and navigation system architecture. Some preliminary test results concerning a custom developed thruster are presented along with hydrodynamic drag calculations by the use of computer fluid dynamic methods.
    2007Journal article Open access Show more