title: A daily living activity remote monitoring system for solitary elderly people.
abstract: A daily living activity remote monitoring system has been developed for supporting solitary elderly people. The monitoring system consists of a tri-axis accelerometer, six low-power active filters, a low-power 8-bit microcontroller (MC), a 1GB SD memory card (SDMC) and a 2.4 GHz low transmitting power mobile phone (PHS). The tri-axis accelerometer attached to the subject's chest can simultaneously measure dynamic and static acceleration forces produced by heart sound, respiration, posture and behavior. The heart rate, respiration rate, activity, posture and behavior are detected from the dynamic and static acceleration forces. These data are stored in the SD. The MC sends the data to the server computer every hour. The server computer stores the data and makes a graphic chart from the data. When the caregiver calls from his/her mobile phone to the server computer, the server computer sends the graphical chart via the PHS. The caregiver's mobile phone displays the chart to the monitor graphically.
authors.affiliation: Department of Health Science, Hiroshima Institute of Technology, Hiroshima 731-5193, Japan.
authors.forename: Hiromichi
authors.initials: H
authors.lastname: Maki
authors.forename: Hidekuni
authors.initials: H
authors.lastname: Ogawa
authors.forename: Shingo
authors.initials: S
authors.lastname: Matsuoka
authors.forename: Yoshiharu
authors.initials: Y
authors.lastname: Yonezawa
authors.forename: W Morton
authors.initials: WM
authors.lastname: Caldwell
mesh_terms: D000054:Acceleration; D056044:Actigraphy / Q000295:instrumentation*; D000203:Activities of Daily Living; D000368:Aged; D040421:Cell Phone; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005260:Female; D015577:Geriatric Assessment / Q000379:methods*; D006801:Humans; D008297:Male; D017216:Telemedicine / Q000295:instrumentation*; D013686:Telemetry / Q000295:instrumentation*