Dynamic Indoor Localization Based on Active RFID for Healthcare Applications: A Shape Constraint Approach

RFID-based localization has received considerable attention within the healthcare industry and has made a major impact on the healthcare system in hospitals. In this paper, we propose a new location tracking algorithm that aims to improve the accuracy of indoor localization for healthcare applicatio...

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Bibliographic Details
Published in2009 2nd International Conference on Biomedical Engineering and Informatics pp. 1 - 5
Main Authors Wei-Hong Chen, Chang, H.H., Lin, T.H., Chen, P.C., Chen, L.K., Hwang, S.J., Yen, D., Yuan, H.S., Chu, W.C.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2009
Subjects
Active RFID tags
Biomedical engineering
Biomedical imaging
Cost function
Estimation error
Hospitals
Medical services
Radiofrequency identification
RFID tags
Shape
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Summary:RFID-based localization has received considerable attention within the healthcare industry and has made a major impact on the healthcare system in hospitals. In this paper, we propose a new location tracking algorithm that aims to improve the accuracy of indoor localization for healthcare applications. In our approach, a cost function associated with a shape constraint factor is used to find the optimal reference tag positions that enclose the tracking tag. The cost function consists of the similarity and disparity of signal strength between the tracking and reference tags, as well as geometrical correlation properties. The experimental results indicate that the proposed shape constraint algorithm provides considerable improvement in average estimation error as compared with existing methods. We believe that this new algorithm is of potential value in dynamic location tracking of objects for healthcare applications.
ISBN:9781424441327
1424441323
ISSN:1948-2914
DOI:10.1109/BMEI.2009.5304900