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The objective of this research was to determine the relationship between different product types and tag orientations on the readability of RFID tags on shipping containers in a palletload that is driven through a portal type reader. This research finds that the content of packages can dramatically reduce the read rate. Only 25% of the tags on shipping containers containing water-filled bottles could be read. Rice-filled jars had a higher read rate (80.6%). Even empty boxes did not have a 100% read rate. For the variables without appreciable package contents, only 74–79% of loads had all of their tags read. The orientation of the tag does make a difference, especially when coupled with a filled package between it and the reader antennae. Tags facing outwards, towards the reader antennae, had the highest likelihood of a successful read. When tags for the boxes of water-filled bottles were all facing downwards, no tags were read. Supply chain managers need to understand these limitations of the technology and find ways to overcome them before RFID can be successfully implemented in supply chains. Copyright © 2005 John Wiley & Sons, Ltd.
Clarke et al. (Wed,) studied this question.