An Elderly Fall Detection using a Wrist-Worn Accelerometer and Barometer

Prayook Jatesiktat1, Wei Tech Ang

  • 1Nanyang Technological University

Details

Category

Contributed Papers (Oral)

Theme

7. Biomedical Sensors and Wearable Systems

Sessions

08:00 - 09:30 | Wed 12 Jul | Geddes Room | WeAT12

Clinical Applications of Mobility Assessment

Abstract

As the world population is growing toward an aging society, elderly fall becomes a serious problem. Automatic fall detection and alert systems could shorten their waiting time after a fall and mitigate its physical and mental negative consequences. This work proposes a method that integrates a 3-axis accelerometer and a barometer on a wrist-worn device for the fall detection task. The method focuses on the use of noisy signals from a barometer in both pre-processing steps and feature extractions. A use of free falling events to address the lack of training data in a learning process is also explored. An evaluation using simulated falls and various activities shows a high classification performance except for a few false alarms occurring when sitting on the floor from a standing pose.

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