4 research outputs found
Fingerprint indoor position system based on OpenMAC
This paper presents a work in progress for the developing of a fingerprint indoor position system based on
OpenMAC, an IEEE 802.15.4 embedded software implementation from Atmel to be used in different
scenarios like e_health, ambient living or smart building. The system is thought to work as another one that
we have yet developed but using the BitCloud Stack, a full-featured, second generation embedded software
stack from the same supplier, but improving it. The first steps followed up in the system development are
shown in this paper.Junta de Andaluc铆a p08-TIC-363
Analysis of the Behavior of an Indoor Position System Based on Fingerprints and IEEE 802.15.4
This paper presents an analysis of the behaviour of an indoor position system based on fingerprints and IEEE 802.15.4 that has been adapted to be tested in a competition, called EvAAL (Evaluating AAL Systems through Competitive Benchmarking), hold both in Madrid (tests) and Eindhoven (results). The objectives of this analysis are to determine the best algorithm that should have been applied in order to obtain the best results in the competition to use them in other environments. Among the different combinations that can be applied, i.e., the way the signature database is filled in and the algorithm uses to determine the closest location point, the best results are obtained using a global signature database where each signature entry is calculated by the medium of samples signatures database and the closest location is determined by a centroid algorithm with the parameter c set to 1.3. In this way, the error made improves the one obtained in the EvAAL, which is reduced by 100 centimetres.Junta de Andaluc铆a p08-TIC-363