Options
A Relative Positioning System for Co-located Mobile Devices
Type
presentation
Date Issued
2005-06-06
Author(s)
Hazas, Mike
Agbota, Henoc
Kray, Christian
Baecker, Oliver
Gellersen, Hans
Kortuem, Gerd
Abstract
If a mobile computing device knows how it is positioned
and oriented in relation to other 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 the Relate
system, 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 a hardware/
software plug-in, using ultrasound for peer-to-peer
sensing, USB to interface with standard mobile devices,
and data abstraction and inferencing 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. We
report experimental results on the accuracy of the relative
position and orientation estimates, and other aspects
of system performance.
and oriented in relation to other 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 the Relate
system, 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 a hardware/
software plug-in, using ultrasound for peer-to-peer
sensing, USB to interface with standard mobile devices,
and data abstraction and inferencing 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. We
report experimental results on the accuracy of the relative
position and orientation estimates, and other aspects
of system performance.
Language
English
Keywords
mobile devices
relative positioning
ultrasound
wireless communication
HSG Classification
contribution to scientific community
Refereed
No
Event Title
3rd International Conference on Mobile Systems, Applications, and Services (MobiSys)
Event Location
Seattle, WA
Subject(s)
Division(s)
Eprints ID
43270