Applying back propagation network to cold chain temperature monitoring

  • Chen K
  • Shaw Y
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Recently, the enhancement of contactless, real-time features and high data transmission rates in supply chain management has been widely discussed. Notably, the cold chain is a part of the supply chain in which temperature monitoring plays a vital role in the system while automatic data collection is an essential aspect of cold chain management. As such, automatic data collection methods, such as radio frequency identification (RFID) techniques, are used to collect temperature data in order to track and trace all manner of products. In this paper, we evaluate an exponentially weighted moving average (EWMA) control chart and artificial neural network technologies in order to monitor collected temperature data in the context of cold chain management. The back-propagation neural network is used to predict temperature shifts and trends. The EWMA control chart is adopted to monitor temperature variations. Using this strategy, as anomalies occur, the control center of an enterprise can perform certain actions immediately to prevent further disaster. Finally, we construct a system using a back-propagation neural network and statistical process control chart. A simulated environment using LEGO® bricks is also implemented to demonstrate the feasibility of this study. This temperature control mechanism is found to be useful for a real-time temperature data collection environment, as with using active RFID tags with temperature sensors for cold chain management. © 2010 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Back propagation network
  • EWMA
  • Radio frequency identification
  • Statistical process control
  • Temperature monitoring

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  • Kai Ying Chen

  • Yi Cheng Shaw

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