title: Multi-resident identification using device-free IR and RF fingerprinting.
abstract: Remote monitoring of health and mobility is critical in the support of aging-in-place for seniors. However, it is challenging to passively monitor individuals in multi-resident homes. In this paper we present a new method for the identification of individuals using simple wall-mounted radio frequency (RF) transceivers and IR sensors with fingerprinting techniques. The approach is passive or device-free in that it does not require the person being identified to wear any transmitting device Classification is achieved using features derived from measuring the disruption of RF received signal strength (RSS) among 4 transceivers positioned across either a hallway or doorframe. Three IR sensors provide timing information. Results are given for 3 test subjects (1 female, 2 males). The approach achieves over 98% classification accuracy in distinguishing the female from the male subjects and over 83% in distinguishing between the males using a Gaussian Mixture Model for classification. More than 2300 labeled examples per subject were used for training. When the training data is reduced to less than 140 examples per subject, 96% and 82% classification accuracy is still achieved respectively.
authors.forename: Erich R
authors.initials: ER
authors.lastname: Schafermeyer
authors.forename: Eric A
authors.initials: EA
authors.lastname: Wan
authors.forename: Shadman
authors.initials: S
authors.lastname: Samin
authors.forename: Noah
authors.initials: N
authors.lastname: Zentzis
authors.forename: Nicholas
authors.initials: N
authors.lastname: Preiser
authors.forename: John
authors.initials: J
authors.lastname: Condon
authors.forename: Jon
authors.initials: J
authors.lastname: Folsom
authors.forename: Peter G
authors.initials: PG
authors.lastname: Jacobs
mesh_terms: D005260:Female; D006798:Housing; D006801:Humans; D007259:Infrared Rays; D008297:Male; D008991:Monitoring, Physiologic / Q000295:instrumentation / Q000379:methods*; D016571:Neural Networks, Computer; D016011:Normal Distribution; D011846:Radio Waves