Abstract
In this paper we present a wearable positioning system that requires less
than 10 mW to operate. The system consists of an infrastructure of
ultrasonic transmitting devices, and a receiver device on the wearable. The
receiver comprises an ultrasonic pick-up, an op-amp, and a PIC. The PIC
implements a particle filter for estimating X and Y positions, which
is robust in an environment with limited precision. We have modified the
traditional particle filter in order to operate on a micro-controller with
limited memory capabilities. The number of particles is only limited by the
amount of memory on the PIC; we only use 5% of the PIC's computational
power.
Translated title of the contribution | A 10mW Wearable Positioning System |
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Original language | English |
Pages (from-to) | 47-50 |
Journal | International Symposium on Wearable Computing (ISWC) 2006 |
Publication status | Published - 2006 |
Bibliographical note
ISBN: 1424405971Publisher: IEEE
Name and Venue of Conference: International Symposium on Wearable Computing (ISWC) 2006
Other identifier: 2000596