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Browsing by Author "Machado, Diogo Cabral"

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  • Development of an Unmanned Capsule for large-scale maritime search and rescue
    Publication . Matos, Aníbal; Silva, Eduardo; Cruz, Nuno; Alves, José Carlos; Almeida, Duarte Rafael; Pinto, Miguel Armando; Martins, Alfredo; Almeida, José Miguel; Machado, Diogo Cabral
    This paper describes the development and testing of a robotic capsule for search and rescue operations at sea. This capsule is able to operate autonomously or remotely controlled, is transported and deployed by a larger USV into a determined disaster area and is used to carry a life raft and inflate it close to survivors in large-scale maritime disasters. The ultimate goal of this development is to endow search and rescue teams with tools that extend their operational capability in scenarios with adverse atmospheric or maritime conditions.
    2013Journal article Restricted access Show more
  • Field experiments for marine casualty detection with autonomous surface vehicles
    Publication . Martins, Alfredo; Dias, André; Almeida, José Miguel; Ferreira, Hugo Miguel; Almeida, Carlos Valente; Silva, Guilherme Amaral; Machado, Diogo Cabral; Sousa, João Ricardo; Pereira, Pedro Oliveira; Matos, Aníbal; Lobo, Vitor; Silva, Eduardo
    In this paper we present a set of field tests for detection of human in the water with an unmanned surface vehicle using infrared and color cameras. These experiments aimed to contribute in the development of victim target tracking and obstacle avoidance for unmanned surface vehicles operating in marine search and rescue missions. This research is integrated in the work conducted in the European FP7 research project Icarus aiming to develop robotic tools for large scale rescue operations. The tests consisted in the use of the ROAZ unmanned surface vehicle equipped with a precision GPS system for localization and both visible spectrum and IR cameras to detect the target. In the experimental setup, the test human target was deployed in the water wearing a life vest and a diver suit (thus having lower temperature signature in the body except hands and head) and was equipped with a GPS logger. Multiple target approaches were performed in order to test the system with different sun incidence relative angles. The experimental setup, detection method and preliminary results from the field trials performed in the summer of 2013 in Sesimbra, Portugal and in La Spezia, Italy are also presented in this work.
    2013Journal article Restricted access Show more