A Microcomputer-Based Life-Safety Monitoring System for Elderly People

Abstract

A new safety and life support system has been developed for monitoring health conditions and daily living activities of solitary elderly people. The system employs a piezoelectric sensor, two low-power active filters, a low-power 8-hit single chip microcomputer (SCM) and a 315 MHz radio transmitter. The body movements produced by respiration, heartbeat, sleep/rest motions, walking and running are detected by the piezoelectric sensor, and the recorded motion signals are inputted to the SMC. If the patient is inactive for 64 minutes, then the SMC detects this emergency situation and informs the patient's family, a fire station or a hospital via telephone. The system is powered by a small 3V lithium battery which provides 14 days of continuous operation.

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Document Details

Document Type
Technical Report
Publication Date
Oct 25, 2001
Accession Number
ADA411900

Entities

People

  • Hidekuni Ogawa
  • Hiromichi Maki
  • Ishio Ninomiya
  • Kouji Sada
  • Yoshiharu Yonezawa

Organizations

  • Hiroshima Institute of Technology

Tags

Communities of Interest

  • Biomedical
  • Sensors

DTIC Thesaurus Topics

  • Circadian Rhythms
  • Computers
  • Converters
  • Death
  • Detectors
  • Emergencies
  • Filters
  • High Pass Filters
  • Hospitals
  • Life Support Systems
  • Lithium Batteries
  • Low Pass Filters
  • Monitoring
  • Personal Computers
  • Piezoelectric Sensors
  • Radio Transmitters
  • Transmitters

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Gulf War Illness and Chronic Multisymptom Illness in Veterans.
  • Sensor Fusion and Tracking Systems.