Cambridge University Researchers Enable Error-free wide-area Passive RFID Tracking System

Share Article

Low-cost Passive UHF RFID system capable of single coverage areas up to 400 square metres with 100% accuracy

A ground-breaking passive RFID tracking system has been externally demonstrated for the first time by a team of researchers from Cambridge University using world-leading Impinj RFID technology. The prototype, demonstrated at the Records Management Division of Civica UK Ltd, a leader in IT systems and service delivery, allows unparalleled detection levels for single coverage areas of up to 400 square metres. In addition, its modular architecture makes extensions for use in large buildings straightforward. To address the widest range of applications, conventional low cost Class 1 Gen 2 UHF tags are used, and the system uses DAS-based patent pending technology to enable detection ranges of more than 20 m.

The team at Cambridge, comprised of Dr. Sithamparanathan Sabesan, Dr. Michael Crisp, Prof. Richard Penty and Prof. Ian White have developed the system using Impinj Monza® based tags and Indy® R2000 based readers to deliver a cost effective passive RFID system that improves RFID detection accuracy to nearly 100%. It provides 400 square meters of coverage and is capable of scaling to much larger deployments.

“In the trial at system integrator Civica Records Management, where the focus was on document tracking, the system was able to detect hundreds of files with an accuracy of 100% over a 17 m x 8 m office area using a single low-cost DAS RFID reader,” says Dr. Sabesan, a Research Fellow at Cambridge University. The Managing Director of Civica, Ian Keers said, “This is a major breakthrough in performance and will strongly impact the effectiveness of RFID systems in the Records Management space.” Impinj’s Vice President of Marketing Kerry Krause added “This is a great example of how Impinj technology can enable a wide range of cost effective high performance applications. We are very pleased that the Cambridge University team has used both Monza based tags and Indy based readers to deliver this highly accurate document tracking application for large office spaces.”

It is intended that the system, recognised by the award of the 2011 UK RAEng/ERA Innovation Prize, will be developed commercially by the Cambridge team. This will allow organisations to monitor, inexpensively and effectively, RFID tagged items over large areas.

For further information contact Dr. Sabesan by email at ss740(at) or contact on +44 788 6023 691.

Impinj, Monza and Indy are registered trademarks of Impinj, Inc.

Share article on social media or email:

View article via:

Pdf Print

Contact Author

Sabesan Sithamparanathan
Email >
Visit website