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Fault location in an electrical energy distribution infrastructure with a wirel...
Fortunato, Carlos; Casaca, Augusto; Grilo, António; Santos, MiguelThis article presents a detailed analysis of the applicability of wireless systems in the localization of faults in the energy distribution network. The hwardware and software architectures of the envised sensor solution will also be described and finally, the integration of this system into Smart Grids will be discussed in terms of automatic fault analysis. A pilot system has been tested in a subset of the Por...
A wireless sensor and actuator network for improving the electrical power grid ...
Grilo, António; Casaca, Augusto; Pereira, Paulo; Buttyan, Levente; Gonçalves, José; Fortunato, CarlosThis paper presents an overview of a Wireless Sensor and Actuator Network (WSAN) used to monitor an electrical power grid distribution infrastructure. The WSAN employs appropriate sensors to monitor key grid components, integrating both safety and security services, which improve the grid distribution dependability. The supported applications include, among others, video surveillance of remote secondary substat...
Fault location in an electrical energy distribution infrastructure with a wirel...
Fortunato, Carlos; Casaca, Augusto; Grilo, António; Santos, MiguelThis paper presents a detailed analysis of the applicability of wireless systems in the localization of faults in the energy distribution network. The hardware and software architectures of the envisaged sensor solution will also be described and finally, the integration of this system into Smart Grids will be discussed in terms of automatic fault analysis. A pilot system has been tested in a subset of the Port...
A wireless sensors suite for Smart Grid applications
Grilo, António; Sarmento, Helena; Nunes, Mário; Gonçalves, José; Pereira, Paulo; Casaca, Augusto; Fortunato, CarlosThis paper presents a demonstrator of a Wireless Sensor and Actuator Network (WSAN) for Smart Grid applications, developed in the context of project WSAN4CIP. This WSAN is formed by WSAN nodes equipped with sensors and a wireless radio interface, which monitor key parameters of power grid equipments belonging to the Medium Voltage (MV) and Low Voltage (LV) segments. The measurements are reported to the SCADA sy...
Energy and quality of service management in wireless multimedia sensor networks
Pereira, Paulo; Gonçalves, José; Grilo, António; Fortunato, Carlos; Nunes, Mário; Casaca, AugustoSensor networks are composed of resource constrained nodes that capture data from the environment, preprocess it and then transmit it to a sink node. This paper presents a scenario for monitoring an electricity distribution network, an energy analysis of the used sensor nodes and an intelligent energy and quality of service (QoS) manager. This manager continuously adapts the provided QoS according to the energy...
A evolução do subsistema armas e munições: implicações para a Artilharia de Cam...
Grilo, Antonio; Mimoso, JoseO carácter da conflitualidade actual evoluiu, para guerras assimétricas, sem frentes, sem uniformes, de objectivos pouco claros, estando os combatentes misturados com a população, que é utilizada como escudo ou moeda de troca, se necessário. O emprego da Artilharia de Campanha no actual espectro de missões mantém-se decisivo, necessariamente mais alargado e com novas especificidades, exigindo cada vez mais esp...
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