Refrigerated fruit storage monitoring combining two different wireless sensing technologies: RFID and WSN.
Every day, millions of tons of temperature-sensitive goods are produced, transported, stored or distributed worldwide, thus making their temperature and humidity control essential. Quality control and monitoring of goods during the cold chain is an increasing concern for producers, suppliers, logistic decision makers and consumers. In this paper we present the results of a combination of RFID and WSN devices in a set of studies performed in three 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 seven motes, during one week in each chamber. 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 thank to the feedback of data, between RFID and WSN it is possible to estimate energy consumption in the cold room, water loss from the products and detect any condensation over the stored commodities.
Departamento de Ingeniería Agroforestal, ETSI Agrónomos, Universidad Politécnica de Madrid, 28040 Madrid, Spain. ricardobadia@live.com.
Ricardo
R
Badia-Melis
Departamento de Ingeniería Agroforestal, ETSI Agrónomos, Universidad Politécnica de Madrid, 28040 Madrid, Spain. luis.ruiz@upm.es.
Luis
L
Ruiz-Garcia
Sensors Technology Laboratory, Centro Nacional de Investigaciones Metalúrgicas, Consejo Superior de Investigaciones Científicas (CENIM-CSIC), Avenida Gregorio del Amo 8, 28040 Madrid, Spain.
Javier
J
Garcia-Hierro
Sensors Technology Laboratory, Centro Nacional de Investigaciones Metalúrgicas, Consejo Superior de Investigaciones Científicas (CENIM-CSIC), Avenida Gregorio del Amo 8, 28040 Madrid, Spain. jrobla@cenim.csic.es.
Jose I Robla
JI
Villalba