e-journal
Position Recognition to Support Bedsores Prevention
Abstract—In this paper, a feasibility study where small wireless devices are used to classify some typical user’s positions in the bed is presented. Wearable wireless low-cost commercial transceivers operatingat2.4GHzaresupposedtobewidelydeployedinindoor settings and on people’s bodies in tomorrow’s pervasive computing environments. The key idea of this study is to leverage their presencebycollectingthereceivedsignalstrength(RSS)measured among fixed devices, deployed in the environment, and the wearableone.TheRSSmeasurementsareusedtoclassifyasetofuser’s positions in the bed, monitoring the activities of patients unable to make the desirable bodily movements. The collected data are classified using both support vector machine and K-nearest neighbor methods, in order to recognize the different user’s position, and thus supporting the bedsores issue.
Index Terms—Bedsores prevention, classification of user’s positions in the bed, K-nearest neighbor (K-NN), received signal strength (RSS), support vector machine (SVM).
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