According to the National Water Agency (ANA), approximately 46.2% of all clean water used in Brazil is destined for irrigation, which has been motivating the evaluation of alternatives for water supply agricultural crops. Considering this scenario, this article presents the IoT SF-Automation proposal, which aims to explore Situation Awareness in the decisionmaking process, with the perspective of minimizing socioenvironmental impacts. For evaluation of IoT SF-Automation a prototype was developed that integrates open-source IoT technologies to the EXEHDA middleware and explores a weather prediction service. The results achieved were promising, reaching a success rate of approximately 94% regarding the irrigation decision.Resumo: De acordo com a Agência Nacional de Águas (ANA), aproximadamente 46,2% de toda água limpa empregada no Brasil é destinada à irrigação, o que vem motivando a avaliação de alternativas para fornecimento de água às culturas agrícolas. Considerando este cenário, este artigo apresenta a proposta IoT SF-Automation, que objetiva explorar Ciência de Situação na tomada da decisão de irrigação, com a perspectiva de minimizar impactos socioambientais.Para avaliação da IoT SF-Automation foi desenvolvido um protótipo que integra tecnologias IoT open-source ao middleware EXEHDA e explora um serviço de previsão climatológica. Os resultados atingidos se mostraram promissores atingindo uma taxa de acerto de aproximadamente 94% quanto à decisão de irrigação.
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