Smart Life-Space Surveillance: Integrated Life-Space Mobility Monitoring Using a Sensor Fusion System for Older Adults Living Alone.

This study aims to verify the feasibility of measuring the living space of elderly people living alone. The system uses a low risk of identifying personal information by using motion sensors indoors and a smartwatch's GPS (Global Positioning System) records when going out. On the first day of the demonstration, the motion detection sensor system was installed in the home, and the subjects were instructed on using and charging the smartwatch. The participants continued their daily lives for 8 weeks. The indoor system recorded activities such as moving between rooms, using the toilet, and sleeping, while the smartwatch tracked outdoor living spaces using GPS. In the future, we are investigating about how the living space of elderly people living alone is related to their medical characteristics, cognitive function, and physical function, and how it affects their activities of daily living by using our system.Clinical Relevance- The system is expected to enable the monitoring of indoor and outdoor activities of daily living for community-dwelling older adults living alone, and to assess real life-space environments from the perspective of Preventing leakage of personal information and enhancing participant adherence by using human-detection techniques that place minimal burden on older adults.