Wireless network in the process industries: opportunities and challenges. / Redes sem fio na indústria de processos: oportunidades e desafios.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

The wireless data transmissions are part of our daily lives. The wireless network is the technology that has been most developed in the beginning of the 21st century and this evolution allowed the industry to start considering the wireless technology as a viable option to its reality. Due to that, the aim of this paperwork is to study the wireless instrument network transmission in the process industries, its topologies and its characteristics. In order to categorize this technology over time, a history of signal field transmission was made, since the pneumatic transmission to the digital wired transmission. The sensors evolution was also studied and this can be considered one of the wireless transmission main vectors. It was introduced the concepts of this new technology as spread spectrum, antennas, network architectures and the WirelessHART and ISA100.11a technologies, as a preparation to understand the requirements for the design of a wireless instruments network. Based on the regular network ISO-OSI structure, the wireless instrument network has five columns (trustability, latency time, throughput, security and energy) that have to be designed in a commitment relation, ensuring an optimal performance configuration. In the end, it was exemplified the use of the technology through the implementation of some units in the sugarcane industry.

ASSUNTO(S)

instrumentação de sistemas process industries wireless networks redes de comunicação de dados

ACESSO AO ARTIGO

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