Human Physical Activity Recognition Using Smartphone Sensors

Sensors

Robert-Andrei Voicu¹  Radu-Ioan Ciobanu¹  Lidia Bajenaru²  Ciprian Dobre² 

[1] Faculty of Automatic Control and Computers, University Politehnica of Bucharest, Bucharest 060042 , Romania;National Institute for Research and Development in Informatics, Bucharest 011455 , Romania;

关键词: activity recognition;    machine learning;    smartphones;    ambient assisted living;   

DOI  :  10.3390/s19030458

来源: DOAJ

【 摘 要 】

Because the number of elderly people is predicted to increase quickly in the upcoming years, “aging in place„ (which refers to living at home regardless of age and other factors) is becoming an important topic in the area of ambient assisted living. Therefore, in this paper, we propose a human physical activity recognition system based on data collected from smartphone sensors. The proposed approach implies developing a classifier using three sensors available on a smartphone: accelerometer, gyroscope, and gravity sensor. We have chosen to implement our solution on mobile phones because they are ubiquitous and do not require the subjects to carry additional sensors that might impede their activities. For our proposal, we target walking, running, sitting, standing, ascending, and descending stairs. We evaluate the solution against two datasets (an internal one collected by us and an external one) with great effect. Results show good accuracy for recognizing all six activities, with especially good results obtained for walking, running, sitting, and standing. The system is fully implemented on a mobile device as an Android application.

【 授权许可】

Unknown