4 research outputs found

    Gestão de sessões multicast com origem nos clientes CLIF

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    Orientador na PT Inovação Eng.ª Telma Mota e co-orientador Eng.ª Teresa Almeida. Co-orientador no Inesc Prof. António PintoTese de mestrado integrado. Engenharia Electrotécnica e de Computadores. Faculdade de Engenharia. Universidade do Porto. 200

    An architecture for the future business of things

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    A brave new world made of interconnected smart devices will soon revolutionize the world. The application of the Internet of Things vision will foster the creation of new businesses across different industrial sectors. Communication Service Providers need to set the pace of this change if they want to lead this transformation. They need to both leverage and evolve their architectures in order to support a flexible creation of innovative services over distributed networks, linking heterogeneous sensors and actuators. This paper presents the roles of the telecoms on the upcoming machine-to-machine markets and devises an advanced architecture able to withstand the demands of a new plethora of evermore clever and useful services

    NGM2M

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    Todos os indicadores apontam para um crescimento exponencial das comunicações máquina-a-máquina. A utilização da informação de uma panóplia de sensores, associada ao uso dos mais diversos atuadores, permite a criação de um mundo novo de aplicações que abrange os mais distintos sectores de atividade. Os ganhos operacionais, a economia de custos e a reinvenção de processos são alguns dos fatores-chave que contribuirão para a adoção deste novo paradigma. Atentos a este mercado, os operadores de telecomunicações multiplicam-se atualmente em iniciativas e estratégias para se posicionarem de forma mais abrangente na cadeira de valor, com o objectivo de suportar novos serviços diferenciadores que vão muito para além da simples disponibilização de conectividade. Este artigo visa a apresentação da arquitetura de uma plataforma horizontal de criação e disponibilização de serviços M2M, definida tendo por base os objetivos dos projetos Apollo e IoT.est, colmatando o fosso existente entre os diversos serviços e a heterogeneidade de redes e dispositivos, estimulando assim a criação de novos negócios

    Applying computational fluid dynamics in the development of smart ripening rooms for traditional cheeses

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    Traditional ewe's cheese producers face certain challenges caused by fluctuating environmental parameters inside the ripening room, which lead to lack of homogeneity in the final product. The present research discusses the application of computer fluid dynamics for simulating the distribution of environmental parameters, predicting the airflow pattern, and identifying critical areas where such parameters could cause reduced cheese quality. A new monitoring system was developed including presence sensors, temperature and humidity dataloggers, pneumatic actuators, microcontrollers, and microcomputers connected remotely for control, data visualization, and processing. The validation of the computer simulation and monitoring system was made with a batch of 40 ewe's cheeses distributed in three different zones inside a prototype ripening room and ripened for 35 days. At 35 days, a physical, chemical, and microbiological characterization of cheeses was made for evaluation of the influence of environmental conditions on cheese quality. The comparison between simulated and local measurements showed close agreement, especially concerning air velocity inside the stacks of cheese. The results of Pearson's correlation analysis and PCA concluded that temperature affected the appearance of the rind, hardness, number and area occupied by holes. Humidity affected aw and mFeret. Air velocity affected pH and the circularity of gas holes
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