TagRadar is a smart phone accessory that helps users to locate objects with radio frequency tags. We employ a directional antenna and combine signal strength readings with headings obtained from the compass of the smart phone. While scanning a space by waving the smart phone, the aggregated data is presented on an on-screen polar graph that dynamically reveals the most likely heading of the target object. A user test showed that users favor TagRadar and that it is both faster and has a higher accuracy compared to using only signal strength.

Tracking and locating objects is important in many situations. TagRadar provides an approach to locate items with RF and a single radio that does not require a prepared space with beacons or similar technology.

Felix Shin, Bokyung Lee, Daniel Saakes. TagRadar: Locating Objects Using a Smart Phone Accessory Proceedings of The 2015 ACM International Joint Conference on Pervasive and Ubiquitous Computing Adjunct Proceedings. 2015

Tokyo Design Week 2015, 24 Oct 2015 - 3 Nov 2015. Tokyo, Japan.
UbiComp 2015, 7 Sept 2015 - 11 Sept 2015. Osaka, Japan.