Metodologia para Determinação de Temperatura e Umidade em Estufa Agrícola

Abstract

The increasing demand for protected cultivation necessitates the integration of plant culture with technology in order to optimize the temperature and humidity control automation system, ensuring plant comfort at the conclusion of its life cycle and enhanced product quality. Three methodologies were developed to obtain the temperature and internal humidity of the agricultural greenhouse at the Universidade Federal do Pampa. The methodologies used were: an Arduino with an open language and free access software; a commercial model thermo-hygrometer, and a mass and energy balance calculation. Data were collected for twenty days (ten days during winter and ten days during summer) with an extent of five minutes, which means one reading every minute, totaling six daily readings for each method of data collection. For comparison purposes with the temperature and humidity data outside the greenhouse, data were collected from the automatic meteorological station (station A826) in the District of Passo Novo/RS. With the proposed work, it was concluded that the three methodologies were similar within the winter period and within the summer period. And they are valid for use in a system made with Arduino through a commercial system. Keywords: Arduino, Protected crop, Thermo-hygrometer.