A Relative Positioning System for Spatial Awareness of Co-located Mobile Devices and Users (2005)
| Venue: | In Proceedings of MobiSys 2005 |
| Citations: | 7 - 3 self |
BibTeX
@INPROCEEDINGS{Hazas05arelative,
author = {Mike Hazas and Hans Gellersen and Christian Kray and Henoc Agbota and Gerd Kortuem and Albert Krohn},
title = {A Relative Positioning System for Spatial Awareness of Co-located Mobile Devices and Users},
booktitle = {In Proceedings of MobiSys 2005},
year = {2005},
pages = {177--190},
publisher = {ACM Press}
}
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Abstract
If a mobile computer knows how it is positioned and oriented in relation to other mobile devices nearby, then it can provide enhanced support for multi-device and multi-user interactions. Existing systems that provide position information to mobile computers are reliant on externally deployed infrastructure, such as beacons or sensors in the environment. We introduce a novel system, Relate, which provides fine-grained relative position information to co-located devices on the basis of peer-to-peer sensing, thus overcoming dependence on any external infrastructure. The system is realized as hardware/software plug-in, using ultrasonic devices for peer-to-peer sensing, USB to interface with standard mobile devices, and data abstraction and inference to map sensor data to a spatial model that maintains both quantitative and qualitative relationships. We present a set of services and applications to demonstrate the utility of the system and report experimental results on system performance.
