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ESEIG - Escola Superior de Estudos Industriais e de Gestão

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Browsing ESEIG - Escola Superior de Estudos Industriais e de Gestão by Author "Almeida, José Miguel"

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  • TURTLE: Systems and technologies for deep ocean long term presence
    Publication . Ferreira, Hugo; Martins, Alfredo; Almeida, José Miguel; Valente, António; Figueiredo, António; Cruz, Batista da; Camilo, Maurício; Lobo, Victor; Pinho, Carlos; Olivier, Augustin; Silva, Eduardo
    This paper describes the TURTLE project that aim to develop sub-systems with the capability of deep-sea long-term presence. Our motivation is to produce new robotic ascend and descend energy efficient technologies to be incorporated in robotic vehicles used by civil and military stakeholders for underwater operations. TURTLE contribute to the sustainable presence and operations in the sea bottom. Long term presence on sea bottom, increased awareness and operation capabilities in underwater sea and in particular on benthic deeps can only be achieved through the use of advanced technologies, leading to automation of operation, reducing operational costs and increasing efficiency of human activity.
    2014Conference object Restricted access Show more
  • Water jet based autonomous surface vehicle for coastal waters operations
    Publication . Machado, Diogo; Martins, Alfredo; Almeida, José Miguel; Ferreira, Hugo; Amaral, Guilherme; Ferreira, Bruno; Matos, Anibal; Silva, Eduardo
    This paper presents the design of low cost, small autonomous surface vehicle for missions in the coastal waters and specifically for the challenging surf zone. The main objective of the vehicle design described in this paper is to address both the capability of operation at sea in relative challenging conditions and maintain a very low set of operational requirements (ease of deployment). This vehicle provides a first step towards being able to perform general purpose missions (such as data gathering or patrolling) and to at least in a relatively short distances to be able to be used in rescue operations (with very low handling requirements) such as carrying support to humans on the water. The USV is based on a commercially available fiber glass hull, it uses a directional waterjet powered by an electrical brushless motor for propulsion, thus without any protruding propeller reducing danger in rescue operations. Its small dimensions (1.5 m length) and weight allow versatility and ease of deployment. The vehicle design is described in this paper both from a hardware and software point of view. A characterization of the vehicle in terms of energy consumption and performance is provided both from test tank and operational scenario tests. An example application in search and rescue is also presented and discussed with the integration of this vehicle in the European ICARUS (7th framework) research project addressing the development and integration of robotic tools for large scale search and rescue operations.
    2014Conference object Restricted access Show more