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Demonstrador para Switch Ethernet tempo-real

Authors: Angélico, Ivo Alexandre Costa Alves;

Demonstrador para Switch Ethernet tempo-real

Abstract

O uso de sistemas embutidos distribuídos há muito que está generalizado, podendo os mesmos ser encontrados em àreas como a aviónica, robótica e automação industrial. Um sistema embutido distribuído implica que vários nós do sistema troquem informação entre si de forma a atingir um objectivo comum. Para efectuar a troca de informação entre os nós é normalmente usada uma rede de comunicação. A introdução desta rede nos sistemas embutidos distribuídos afecta o seu comportamento, pois, estes sistemas são normalmente sensíveis à latência e ao jitter. De forma a resolver estes problemas foram criados protocolos específicos com propriedades de tempo-real. No seio do projecto de investigação Serv-CPS está a ser desenvolvida uma arquitectura de rede baseada na tecnologia Ethernet comutada, com suporte explícito e eficiente a metodologias de gestão de tráfego orientadas a componentes. O trabalho a desenvolver nesta dissertação prevê, para além da identificação de possíveis sistemas a adoptar que possibilitem a demonstração do correcto funcionamento dos sistemas de comunicação, a implementação de um desses sistemas de forma a poder avaliar o desempenho da arquitectura de rede desenvolvida.

The use of distributed embedded systems have long been widespread, and they may be found in areas such as avionics, robotics and industrial automation. A distributed embedded system implies that multiple nodes of the system exchange information with each other in order to achieve a common goal. To make the exchange of information between nodes it is usually used a communications network. The use of this network in distributed embedded systems affects their behavior, because these systems are usually sensitive to latency and jitter. In order to solve these problems there were created specific protocols with real-time properties. Within the research project Serv-CPS, it is currently being developed a network architecture based on switched Ethernet technology, with explicit support and efficient traffic management methodologies oriented to components. The work in this dissertation provides, in addition to identifying possible systems to adopt that enable the demonstration of the correct behaviour of the communication systems, the implementation of such a system in order to be able to evaluate the performance of the network architecture developed.

Mestrado em Engenharia Electrónica e Telecomunicações

Country
Portugal
Related Organizations
Keywords

Redes de computadores, Sistemas distribuídos, Engenharia electrónica, Sistemas embebidos, Ethernet (Redes de computadores)

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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
Average
Average
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