Accelerometer-based fall detection sensor system for the elderly

Abstract

The considerable risk of falls and the substantial increase in the elderly population make the automatic fall detection system become very important. Existing fall detection systems using accelerometer as the detector are often designed based on an empirical acceleration threshold to differentiate falls from normal activities. In this paper, we design the detection method under the Neyman-Pearson detection framework. An optimal detection threshold can be obtained which meets the specified false alarm rate while maximizing the detection probability. We use TelosW mote with accelerometer as the detector, which is attached to the waist of the old people to capture the movement data. Extensive experiments are conducted to evaluate the effectiveness of our method and the accuracy of the detection system.

A Wearable Fall Detector for Elderly People

“…Currently methods using triaxial acceleration sensors are the main methods for motion and fall detection in older populations: 1) [10] 2) [11] 3) [12] Nyan and colleagues have developed a fall detector using a triaxial accelerometer (MEMS) to collect data. To collect signals use dictated wavelet transformation (DWT).…”

Mobile Phone Based Falling Detection Sensor and Computer-Aided Algorithm for Elderly People

“…In spite of extensive preventive efforts, falls remain the leading cause of accidental deaths among the elderly. Research estimates that over a third of the people aged over 65 suffer from a fall each year, and the number of falls increases progressively with age in both genders and in all racial and ethnic groups [2]. Because of vision and other problems, the falls typically occur in certain environmental conditions.…”

Mobile Phone Based Falling Detection Sensor and Computer-Aided Algorithm for Elderly People

“…In spite of extensive preventive efforts, falls remain the leading cause of accidental deaths among the elderly. Research estimates that over a third of the people aged over 65 suffer fro m a fall each year, and the nu mber of falls increases progressively with age in both genders and in all racial and ethnic groups [2]. Because of vision and other problems, the falls typically occur in certain environmental conditions.…”