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Sistema para a medição dos movimentos de um navio amarrado no Posto 'A' do Porto de Leixões baseado em visão estereoscópica [System for Measuring the Motions of a Moored Ship at the Berth 'A' of the Leixões Oil Terminal Based on Stereoscopic Vision]

Authors: Paulo Lima Malheiros; Paulo Rosa Santos; Paulo Gomes da Costa; António Paulo Moreira; Fernando Veloso Gomes; Francisco Taveira Pinto;

Sistema para a medição dos movimentos de um navio amarrado no Posto 'A' do Porto de Leixões baseado em visão estereoscópica [System for Measuring the Motions of a Moored Ship at the Berth 'A' of the Leixões Oil Terminal Based on Stereoscopic Vision]

Abstract

O comportamento de navios amarrados é um factor importante para as condições de operacionalidade e de segurança do Terminal de Petroleiros do Porto de Leixões. Para aumentar a eficiência das operações de carga/descarga é essencial a redução da amplitude dos movimentos do navio amarrado, assim como para a minimização dos riscos de segurança e ambientais. Este trabalho consistiu no desenvolvimento de um sistema de visão estereoscópico para medir o movimento de corpos rígidos em tempo-real. Os dados adquiridos com este sistema são essenciais para prever e prevenir situações potencialmente perigosas no Posto "A" do Porto de Leixões. Este sistema foi testado em laboratório antes da sua instalação no terminal. Para o efeito foi utilizado um modelo físico da área portuária em estudo, construído à escala geométrica 1/100. Um filtro digital linear foi implementado para garantir a robustez e confiança nas medidas. Os resultados obtidos pelo sistema desenvolvido foram comparados com os resultados de um sistema comercial desenvolvido para aplicações laboratoriais. Palavras-chave: Modelação física; comportamento de navios amarrados; terminais portuários; medições em protótipo; filtro digital.

The behavior of moored ships is an important factor in the security and working conditions of the Oil Terminal in the Port of Leixões. Reducing the amplitude of the moored ship motions is crucial to increase the on and off-loading operations efficiency as well as to reduce security and environmental risks. This paper presents a stereoscopic vision system developed to measure the motion of rigid bodies in real-time. The data acquired with this system is essential to predict and prevent dangerous situations at Berth "A" of the Port of Leixões. Prior to installation on site the system was tested in laboratory in physical model (scale 1/100). To ensure the robustness and reliability of the obtained measurements a linear digital filter was implemented. The results obtained with the developed system were compared with a commercial motion capture system built for "in house" applications.

Country
Portugal
Related Organizations
Keywords

Ciências Tecnológicas, Ciências da engenharia e tecnologias, Ciências da engenharia e tecnologias, Engineering and technology, Technological sciences, Engineering and technology

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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