Encontrados 7 documentos, a visualizar página 1 de 1
ClimaWin : an intelligent window for optimal ventilation and minimum thermal loss
Pinto, Sandro; Castro, Tiago; Brito, Nuno; Gomes, Tiago M.; Tavares, Adriano; Mendes, José A.; Cabral, JorgeIn this paper the ClimaWin concept is introduced. The ClimaWin project's main goals are to improve both indoor air quality and the energy efficiency of new and refurbished buildings, through the use of novel green smart windows. Generally, in order to improve windows' energy efficiency better insulation materials are used in windows frames and glasses. However, this approach leads to a severe deterioration of i...
Exploiting Template Metaprogramming to customize an object-oriented operating s...
Pinto, Sandro; Castro, Tiago; Mendes, José A.; Lopes, Sérgio; Ekpanyapong, M.; Tavares, AdrianoNowadays, the growing complexity of embedded systems demands for configurability, variability and reuse. Conditional compilation and object-orientation are two of the most applied approaches in the management of system variability. While the former increases the code management complexity, the latter leverages the needed modularity and adaptability to simplify the development of reusable and customizable softwa...
Multisensor fusion for acquisition of the profile of surfaces
Fonseca, Jaime C.; Mendes, José A.; Martins, Júlio S.; Couto, CarlosThis paper presents multisensor fusion techniques for the acquisition of the profile of surfaces with minimum error using low cost sensors ultrasonic sensors. These surfaces are composed by areas with different depths, corners and specular surfaces. To minimize the constraints of sonar sensors, it was developed dedicated software and hardware, as well as an empirical model was obtained from real data. This mode...
Application of a web-based monitoring and control system in plastic rotational ...
Rodrigues, Mário; Mendes, José A.; Fonseca, Jaime C.This paper presents a web based monitoring and control system. The system was applied to an industrial Rotational Moulding Plastic Oven. The developed system provides remote monitoring of several temperature sensors included in the oven, as well as control of the operation cycle in which the oven works. The oven is a rotational machine therefore no cables were able to be used, so it was necessary to use wireles...
Integração de um servidor web num sistema de pesagem
Vilaça, João L.; Rodrigues, Mário; Fonseca, Jaime C.; Mendes, José A.O presente artigo, descreve a integração das novas tecnologias de informação (TIs) via Web nos sistemas tradicionais de pesagem, dotando estes de grandes facilidades de interligação com outros sistemas ou equipamentos. Destas facilidades podem ser distinguidas as seguintes: leitura dos valores do peso local e remotamente; facilidades de ligação com sistemas de informação, bases de dados e outras formas de gestã...
Intelligent cutting-off of pipes and bars
Machado, Carlos; Mendes, José A.; Fonseca, Jaime C.Traditionally, automatic cutting-off machines, of metallic pipes or bars, use a constant cutting velocity mode. This mode of operation, constant cutting velocity combined with different profiles of materials to be cut, exposes the cutting saw to variable cutting forces. Therefore, the cutting off machine is usually set for the worst expected conditions, otherwise excessive wear of the saw and machine will occur...
Automatic velocity control in cutting-off machines
Machado, Carlos; Fonseca, Jaime C.; Mendes, José A.Usually, automatic cutting-off machines, of metallic pipes or bars, use constant cutting velocity. This mode of operation, constant cutting velocity combined with different profiles of materials to be cut, causes variable cutting forces to be applied to the saw. As a result, the cutting off machine is generally set for the worst expected conditions, otherwise excessive wear of the saw and machine will occur. Fu...
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