Challenges and Issues in Combining Smartphone and Force Sensor Insole for Fall Detection in the Elderly

摘要

Using multiple sensors is one approach to devise a fall detection system. The proposed system in this paper uses two sensors: triaxial accelerometer in a smartphone and a Force Sensitive Resistor (FSR) sensor in an insole, and activities of daily living (ADL) to identify a fall pattern. Besides an overview of the system, the paper describes challenges and issues that occurred while combing the two sensors and evaluating the system. Examples of these challenges and issues are how to position the smartphone, sensor accuracy, power consumption and impact of the elderly's movement on the detection system.