Tagoram: real-time tracking of mobile RFID tags to high precision using COTS devices

@article{Yang2014TagoramRT,
  title={Tagoram: real-time tracking of mobile RFID tags to high precision using COTS devices},
  author={Lei Yang and Yekui Chen and Xiangyang Li and Chaowei Xiao and Mo Li and Yunhao Liu},
  journal={Proceedings of the 20th annual international conference on Mobile computing and networking},
  year={2014}
}
  • Lei Yang, Yekui Chen, Yunhao Liu
  • Published 7 September 2014
  • Computer Science
  • Proceedings of the 20th annual international conference on Mobile computing and networking
In many applications, we have to identify an object and then locate the object to within high precision (centimeter- or millimeter-level. [] Key Method Our system achieves these three goals by leveraging the phase value of the backscattered signal, provided by the COTS RFID readers, to estimate the location of the object. In Tagoram, we exploit the tag's mobility to build a virtual antenna array by using readings from a few physical antennas over a time window. To illustrate the basic idea of our system, we…
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TLDR
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Probing into the Physical Layer: Moving Tag Detection for Large-Scale RFID Systems
TLDR
This work proposes a moving tag detection mechanism, which achieves the time efficiency by exploiting the useless collision signal in RFID systems, and develops the Graph Matching method and Coherent Phase Variance method to detect the moving tagged-objects.
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TagRay is presented, a contactless RFID-based sensing system, which significantly improves the tracking accuracy, enabling mobile object tracking and even material identification.
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