Articolo in rivista, 2018, ENG, 10.1109/JRFID.2018.2881708

Order-of-Arrival of Tagged Objects

Bartoletti S., Decarli N., Dardari D., Chiani M., Conti A.

Department of Engineering and CNIT, University of Ferrara, 44121 Ferrara, Italy DEI "Guglielmo Marconi" and CNIT, University of Bologna, 47521 Cesena, Italy DEI "Guglielmo Marconi" and CNIT, University of Bologna, 47521 Cesena, Italy DEI "Guglielmo Marconi" and CNIT, University of Bologna, 47521 Cesena, Italy Department of Engineering and CNIT, University of Ferrara, 44121 Ferrara, Italy

The order-of-arrival (OOA) of a stream of objects moving along a direction is important for decision making in logistic and industrial applications. As an example, the dispatch of luggage in airports requires to determine their OOA at check- points; as another example, the automatic steering of items in supply chains requires to sort and identify them while moving on a conveyor belt. This paper establishes a general framework for determining the OOA of objects that are moving along a monitored direction via radio-frequency identification (RFID) systems. Three techniques for OOA tracking are proposed and developed for objects equipped with RFID tags possessing ranging capabilities. The benefits of the proposed techniques are validated experimentally based on measurements gathered with an RFID system operating in an indoor environment.

IEEE journal of radio frequency identification (Online) 2 (4), pp. 185–196

Keywords

Sorting, tracking, multi-hypothesis testing, RFID, localization

CNR authors

Bartoletti Stefania, Decarli Nicolo

CNR institutes