
Communication between electronic components has always been a very important area, with a wide field of research. Through technological advances, it can be obtained components, not only with smaller sizes but also with improved capabilities. The need to communicate between these small components has become essential, so that the communication has, more and more, to be better and to provide more guarantees. This thesis presents a theoretical and practical analysis of two industrial protocols, Controller Area Network and Flex-Ray, which use such components, in other words, the microcontrollers. The work done in the scope of this thesis approaches, initially, the Controller Area Network protocol, and how it is implemented. In a second phase, the same study is conducted now related to the FlexRay protocol. Finally, the link between these two protocols is established. Subsequently, the Controller Area Network protocol is analyzed, considering the nodes and the bus, to check its functioning capabilities as an industrial protocol. Afterwards, it was designed and implemented a software capable to communicate through RS232 or USB with industrial networks that make use of this protocol. Regarding FlexRay, the integration of this protocol in the industrial universe was verified. The protocol was analyzed, along with the respective nodes, bus and types of frames used to communicate between nodes. With the two protocols studied, the ultimate purpose is the integration of this protocols into a telemetry network.
A comunicação entre componentes electrónicos foi, desde sempre, uma área muito relevante e com um vasto campo de investigação. Através dos avanços tecnológicos, obtêm-se componentes com dimensões mais reduzidas e simultaneamente com melhores capacidades. A necessidade de comunicar entre estes pequenos componentes tornou-se indispensável, de tal forma que a comunicação tem cada vez mais, de apresentar mais garantias. Neste sentido, esta dissertação apresenta uma análise teórica e prática de dois protocolos industriais, o Controller Area Network e o FlexRay, nos quais são utilizados os componentes em causa, ou seja, os microcontroladores. O trabalho realizado no âmbito desta dissertação aborda, numa primeira fase, o protocolo Controller Area Network e FlexRay e a forma como são implementados, por fim, a interligação entre estes dois protocolos. Posteriormente, o protocolo Controller Area Network é analisado ao nível de nós e barramento, para verificar o seu funcionamento como protocolo industrial. Foi concebido e implementado um software capaz de comunicação via RS232 ou USB com redes industriais que usem este protocolo. Relativamente ao FlexRay, verificou-se a integração deste protocolo no universo industrial. Estudou-se o protocolo, e também os respectivos nós, barramento e tipos de tramas que servem de comunicação entre os nós. Com os dois protocolos estudados, o objectivo é a integração destes dois protocolos numa rede de telemetria.
FlexRay, 681.5(043), Industry Protocols, CAN, Fieldbus, Redes de Campo, Telemetry, Protocolos Industriais, 621.39(043), Telemetria
FlexRay, 681.5(043), Industry Protocols, CAN, Fieldbus, Redes de Campo, Telemetry, Protocolos Industriais, 621.39(043), Telemetria
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