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Spatial temperature profiling by semi-passive RFID loggers for perishable food transportation
Jedermann, Reiner and Ruiz García, Luis and Lang, Walter
Spatial temperature profiling by semi-passive RFID loggers for perishable food transportation.
"Computers and Electronics in Agriculture", v. 65
||Spatial temperature profiling by semi-passive RFID loggers for perishable food transportation
Ruiz García, Luis
|Título de Revista/Publicación:
||Computers and Electronics in Agriculture
||E.T.S.I. Agrónomos (UPM) [antigua denominación]
||Ingeniería Rural [hasta 2014]
|Creative Commons Licenses:
||Recognition - No derivative works - Non commercial
Perishable food products are at risk of suffering various damages along the cold chain. The
parties involved should control and monitor the conditions of goods in order to ensure their
quality for consumers and to comply with all legal requirements. Among environmental
parameters during transport, temperature is the most important in prolonging the shelf life
of the products. Radio Frequency IDentification (RFID) is an emergent technology that has
proven its suitability for tracking and tracing in logistics. This paper shows how miniaturized
RFID temperature loggers can be adapted to analyze the amount of local deviations,
detect temperature gradients, and estimate the minimum number of sensors that are necessary
for reliable monitoring inside a truck or container. These devices are useful tools for
improving the control during the transport chain and detecting weaknesses by identifying
specific problem areas where corrective actions are necessitated. In a first step, the RFID
tags were tested by studying the temperature distribution in a pallet. Then, 15 shipments
from a wholesale company in Germany in compartmented trucks were monitored, covering
different temperature range conditions. During transport, several temperature differences
were found in the same compartment. Using a factorial Analysis of Variance (ANOVA) the
influence of different factors has been studied, such as: the location of the logger, type of
truck, and external temperature. The shelf life, or keeping quality model, was applied to the
recorded temperature profiles. Suggestions for future research areas are also discussed.
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