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Descripción
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| Every day, millions of tons of temperature sensitive goods are produced, transported, stored or distributed worldwide. For all these products the control of temperature is essential. The quality of these products might change rapidly, when inadequate temperature and relative humidity conditions happened. It is estimated that 300 million tons of produce are wasted annually through deficient refrigeration worldwide. Quality control and monitoring of goods during the cold chain is an increasing concern for producers, suppliers, logistic decision makers and consumers. In this framework, Radio Frequency Identification (RFID) and Wireless Sensor Networks (WSN) are entering in a new phase. RFID was developed for identification; however, recent developments in RFID hardware outfitted with sensors extend its range of application. Wireless sensor nodes, known as motes, enable environment sensing together with data processing. In this paper we present the results of a set of studies performed in 3 commercial wholesale chambers of 1848 m3, with different set points and products. Up to 90 semi-passive RFID temperature loggers were installed simultaneously together with 7 motes, during one week in each chamber. The motes host a variety of sensors: temperature, relative humidity, light intensity, barometric pressure and two-axis accelerometer. 3D temperature mapping charts were obtained and also the psychrometric data model from ASABE was implemented for the calculation of enthalpy changes and the absolute water content of air. Thus it was possible to estimate energy consumption, water loss from the products and detect condensation over the commodities. | |
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Internacional
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Si |
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Nombre congreso
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XVII World Congress of the International Commission of Agricultural and Biosystems Engineering (CIGR) |
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Tipo de participación
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960 |
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Lugar del congreso
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Quebec (Canada). |
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Revisores
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No |
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ISBN o ISSN
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978-2-9811062-1-6 |
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DOI
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Fecha inicio congreso
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13/06/2010 |
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Fecha fin congreso
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17/06/2010 |
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Desde la página
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26 |
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Hasta la página
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26 |
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Título de las actas
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XVII World Congress of the International Commission of Agricultural and Biosystems Engineering |