Near error-free wireless detection made possible


24-01-2014

A new long-range wireless tag detection system, with potential applications in health care, environmental protection and goods tracking, can pinpoint items with near 100 per cent accuracy over a much wider range than current systems.

Conventional systems typically offer a lower useful read range than this new solution, as well as lower detection reliability
    - Sithamparanathan Sabesan

The accuracy and range of radio frequency identification (RFID) systems, which are used in everything from passports to luggage tracking, could be vastly improved thanks to a new system developed by researchers at the University of Cambridge.

The vastly increased range and accuracy of the system opens up a wide range of potential monitoring applications, including support for the sick and elderly, real-time environmental monitoring in areas prone to natural disasters, or paying for goods without the need for conventional checkouts.

The new system improves the accuracy of passive (battery-less) RFID tag detection from roughly 50 per cent to near 100 per cent, and increases the reliable detection range from two to three metres to approximately 20 metres. The results are outlined in the journal IEEE Transactions on Antennas and Propagation.


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Image credit: Warehouse, by Erik Söderström via Flickr

Reproduced courtesy of the University of Cambridge
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