Rong-Hao Liang
ACM UIST 2019: ACM User Interface Software and Technology Symposium
RFTouchPads: Batteryless and Wireless Modular Touch Sensor Pads Based on RFID
Meng-Ju Hsieh1, Jr-Ling Guo1, Chin-Yuan Lu1, Han-Wei Hsieh1, Rong-Hao Liang2, Bing-Yu Chen1
National Taiwan University1, TU Eindhoven2
Video
Abstract
This paper presents RFTouchPads, a system of batteryless and wireless modular hardware designs of two-dimensional (2D) touch sensor pads based on the ultra-high frequency (UHF) radio-frequency identification (RFID) technology. In this system, multiple RFID IC chips are connected to an antenna in parallel. Each chip connects only one of its endpoints to the antenna; hence, the module normally turns off when it gets insufficient energy to operate. When a finger touches the circuit trace attached to another endpoint of the chip, the finger functions as part of the antenna that turns the connected chip on, while the finger touch location is determined according to the chip’s ID. Based on this principle, we propose two hardware designs, namely, StickerPad and TilePad. StickerPad is a flexible 3×3 touch-sensing pad suitable for applications on curved surfaces such as the human body. TilePad is a modular 3×3 touch-sensing pad that supports the modular area expansion by tiling and provides a more flexible deployment because its antenna is folded. Our implementation allows 2D touch inputs to be reliability detected 2 m away from a remote antenna of an RFID reader. The proposed batteryless, wireless, and modular hardware design enables fine-grained and less-constrained 2D touch inputs in various ubiquitous computing applications.
Keywords
modular sensing, batteryless, sensors, wireless sensing, touch inputs, rfid
Cite this work (ACM)
Meng-Ju Hsieh, Jr-Ling Guo, Chin-Yuan Lu, Han-Wei Hsieh, Rong-Hao Liang, and Bing-Yu Chen. 2019. RFTouchPads: Batteryless and Wireless Modular Touch Sensor Pads Based on RFID. In Proceedings of the 32nd Annual ACM Symposium on User Interface Software and Technology (UIST '19). Association for Computing Machinery, New York, NY, USA, 999–1011. DOI:https://doi.org/10.1145/3332165.3347910
Cite this work (Bibtex)
@inproceedings{10.1145/3332165.3347910,
author = {Hsieh, Meng-Ju and Guo, Jr-Ling and Lu, Chin-Yuan and Hsieh, Han-Wei and Liang, Rong-Hao and Chen, Bing-Yu},
title = {RFTouchPads: Batteryless and Wireless Modular Touch Sensor Pads Based on RFID},
year = {2019},
isbn = {9781450368162},
publisher = {Association for Computing Machinery},
address = {New York, NY, USA},
url = {https://doi.org/10.1145/3332165.3347910},
doi = {10.1145/3332165.3347910},
abstract = {This paper presents RFTouchPads, a system of batteryless and wireless modular hardware designs of two-dimensional (2D) touch sensor pads based on the ultra-high frequency (UHF) radio-frequency identification (RFID) technology. In this system, multiple RFID IC chips are connected to an antenna in parallel. Each chip connects only one of its endpoints to the antenna; hence, the module normally turns off when it gets insufficient energy to operate. When a finger touches the circuit trace attached to another endpoint of the chip, the finger functions as part of the antenna that turns the connected chip on, while the finger touch location is determined according to the chip's ID. Based on this principle, we propose two hardware designs, namely, StickerPad and TilePad. StickerPad is a flexible 3\texttimes{}3 touch-sensing pad suitable for applications on curved surfaces such as the human body. TilePad is a modular 3\texttimes{}3 touch-sensing pad that supports the modular area expansion by tiling and provides a more flexible deployment because its antenna is folded. Our implementation allows 2D touch inputs to be reliability detected 2 m away from a remote antenna of an RFID reader. The proposed batteryless, wireless, and modular hardware design enables fine-grained and less-constrained 2D touch inputs in various ubiquitous computing applications.},
booktitle = {Proceedings of the 32nd Annual ACM Symposium on User Interface Software and Technology},
pages = {999–1011},
numpages = {13},
keywords = {modular sensing, batteryless, sensors, wireless sensing, touch inputs, rfid},
location = {New Orleans, LA, USA},
series = {UIST '19}
}