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An Intelligent Weather Station

2015; Multidisciplinary Digital Publishing Institute; Volume: 15; Issue: 12 Linguagem: Inglês

10.3390/s151229841

1424-8220

Gonçalo Mestre, A.E. Ruano, Helder Duarte, Sérgio N. Silva, Hamid R. Khosravani, Shabnam Pesteh, Pedro Ferreira, Ricardo Horta,

Greenhouse Technology and Climate Control

Accurate measurements of global solar radiation, atmospheric temperature and relative humidity, as well as the availability of the predictions of their evolution over time, are important for different areas of applications, such as agriculture, renewable energy and energy management, or thermal comfort in buildings. For this reason, an intelligent, light-weight, self-powered and portable sensor was developed, using a nearest-neighbors (NEN) algorithm and artificial neural network (ANN) models as the time-series predictor mechanisms. The hardware and software design of the implemented prototype are described, as well as the forecasting performance related to the three atmospheric variables, using both approaches, over a prediction horizon of 48-steps-ahead.