Browsing by Author "Rodrigues, Ricardo"
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- A Scalable Smart Lighting Framework to Save EnergyPublication . Rebelo, João; Rodrigues, Ricardo; Henriques, João; Gonçalves Cardoso, Filipe; Wanzeller, Cristina; Caldeira, FilipeIn the past few decades, the urbanization area increased significantly, requiring enhanced services and applications to improve the lifestyle of its citizens. Lighting is one of the most relevant infrastructures due to its impact on modern societies, but it is also complex to manage them in cities since it involves a massive number of widespread posts and is costly as the result of the consumption of significant amounts of energy. In that regard, this work proposes a scalable framework to manage a significant huge number of lamp posts. Its purpose is to give support to collecting large amounts of sensor data to help to analyze and efficiently fit the light intensity level to the space the posts are covering. Luminosity sensors are used to optimize the intensity of light needed in the urban areas. The proposed framework explores the concept of smart cities by combining the data collected from sensors plugged into IoT (Internet-ofThings) devices. The proposed framework offers the capability to extend and integrate new services to different domains with each other which enhances the quality and performance of urban services. To demonstrate the feasibility of the framework, a simulation was put in place.
- The value of human values: The importance of government performance towards securityPublication . Patrício, Lurdes; Figueiredo, Natália; Rodrigues, Ricardo; Silva, Rui; Autor correspondente: Patrício, Lurdes.This study investigates whether there is an influence of welfare values on the importance of Government being Strong and Ensuring Security (GSES). Based on secondary data obtained from the European Social Survey database, gathered in 2016 (N = 44.387), eighth round, to measure the 10 values from Schwartz's study in 1992, value theory, containing responses from 23 countries. A linear model regression was used to obtain a parsimonious model that could explain the dependent variable GSES by independent variables benevolence, universalism and self-direction, power and achievement, conformity, tradition and security and hedonism and stimulation. All dimensions were statistically significant to explain the dependent variable. This study contributes to a reconfiguration of values circumplex developed by Schwartz's study in 1992, adding a new layer that reflects each factor's importance weight, centred on explaining the importance of GSES.