توضیحات
ABSTRACT
Aeration is currently the most commonly used technique to improve the drying and storage of grain, depending on temperature and water content of the grain, as of the temperature and relative humidity of the outside air. In order to monitor temperature and humidity of the grain mass, it is possible to have a network of sensors in the cells of both internal and external storage. Use of artificial intelligence through Fuzzy theory, has been used since the 60s and enables their application on various forms. Thus, it is observed that the aeration of grain in function of representing a system of controlled environment can be studied in relation to the application of this theory. Therefore, the aim of this paper is to present an embedded Fuzzy control system based on the mathematical model of CRUZ et al. (2002) and applied to the Arduino platform, for decision support in aeration of grain. For this, an embedded Arduino system was developed, which received the environmental values of temperature and humidity to then be processed in a Fuzzy controller and return the output as a recommendation to control the aeration process rationally. Comparing the results obtained from the graph presented by LASSERAN (1981) it was observed that the system is effective.
INTRODUCTION
Aeration is currently the most widely used technique to improve grain drying and storage conditions. Sets that comprise an aeration system require uniform distribution of the air through the grain mass in a way that will allow it to be homogeneously aerated (HUNG et al., 2009). For CLOUD & MOREY (1979.1991) and NAVARRO & NOYES (2001), aeration is the movement of air through the stored grain mass, thereby maintaining temperatures and water content at safe and homogenous levels, seeking to reduce the activity of insect/pests and fungi, and preventing moisture migration, reducing the rate of deterioration and losses during storage. NAVARRO & NOYES (2001) pointed out the importance of uniform distribution of airflow within the grain mass and its constant monitoring to ensure the quality of the grains. WEBER (2005) mentioned that there cannot be storage without reducing the original harvest moisture to a safe moisture level. This proved the importance of monitoring and controlling grain storage. LASSÉRAN (1981) and SILVA (1995) stated that the aeration is always possible when the outdoor air temperature is lower than that of the grain mass. What is generally reported is that most researchers recommend aeration using the temperature difference between the air and the mass of grains as a criterion.
Year: 2016
Publisher : ISSN
By : Albino Szesz JuniorI , Marcos Monteiro JuniorI Ariangelo Hauer DiasI,Ivo Mário MathiasI Giuvane Conti
File Information: English Language/ 7 Page / size: 472 KB
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سال : 2016
ناشر : ISSN
کاری از : Albino Szesz JuniorI , Marcos Monteiro JuniorI Ariangelo Hauer DiasI,Ivo Mário MathiasI Giuvane Conti
اطلاعات فایل : زبان انگلیسی / 7 صفحه / حجم : KB 472
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