스마트폰을 이용한 실시간 낙상 감지

• 영문명: Real-time Fall Detection with a Smartphone
• 발행기관: 한국IT서비스학회
• 저자명: 황수영(Soo-Young Hwang) 유문호(Mun-Ho Ryu) 김제남(Je-Nam Kim) 양윤석(Yoon-Seok Yang)
• 간행물 정보: 『한국IT서비스학회지』한국IT서비스학회지 제11권 IT융합 특집호, 113~121쪽, 전체 9쪽
• 주제분류: 경제경영 > 경영학
• 파일형태: PDF
• 발행일자: 2012.11.30

영문 초록

In this study, a real-time fall detection system based on a smartphone equipped with three-axis accelerometer and magnetometer was proposed and evaluated. The proposed system provides a service that detects falls in real time, triggers alarm sound, and sends emergency SMS(Short Message Service) if the alarm is not deactivated within a predefined time. When both of the acceleration magnitude and angle displacement of the smartphone attached to waist belt are greater than predefined thresholds, it is detected as a fall. The proposed system was evaluated against activities of daily living(walking, jogging, sitting down, standing up, ascending stairs, and descending stairs) and unintended falls induced by a proprietary pneumatic-powered mattress. With the thresholds of acceleration magnitude 1.7g and angle displacement 80°, it showed 96.5% accuracy to detect the falls while all the activities of daily living were not detected as fall.

목차

Abstract

1. 서론

2. 실험 프로토콜

3. 스마트폰 어플리케이션 제작

4. 낙상 검출 알고리즘

5. 결과

6. 결론

참고문헌

저자소개

키워드

Smartphone Fall Detection Accelerometer Magnetometer