We present GaussRFID, a hybrid RFID and magnetic-field tag sensing system that supports interactivity when embedded in retrofitted or new physical objects. The system consists of two major components - GaussTag, a magnetic-RFID tag that is combined with a magnetic unit and an RFID tag, and GaussStage, which is a tag reader that is combined with an analog Hall-sensor grid and an RFID reader. A GaussStage recognizes the ID, 3D position, and partial 3D orientation of a GaussTag near the sensing platform, and provides simple interfaces for involving physical constraints, displays and actuators in tangible interaction designs. The results of a two-day toy-hacking workshop reveal that all six groups of 31 participants successfully modified physical toys to interact with computers using the GaussRFID system.
@inproceedings{Liang:2016:GRP:2858036.2858527,
author = {Liang, Rong-Hao and Kuo, Han-Chih and Chen, Bing-Yu},
title = {GaussRFID: Reinventing Physical Toys Using Magnetic RFID Development Kits},
booktitle = {Proceedings of the 2016 CHI Conference on Human Factors in Computing Systems},
series = {CHI '16},
year = {2016},
isbn = {978-1-4503-3362-7},
location = {Santa Clara, California, USA},
pages = {4233--4237},
numpages = {5},
url = {http://doi.acm.org/10.1145/2858036.2858527},
doi = {10.1145/2858036.2858527},
acmid = {2858527},
publisher = {ACM},
address = {New York, NY, USA},
keywords = {RFID, analog hall-sensor grid, magnetic tangibles},
}