Mobile Healthcare

It is important to easily and cheaply monitor elderly person's activities of daily living in order to allay the anxiety of their relatives and caregivers. We developed a smartphone-based monitoring system. A smartphone of the elderly person continuously recognizes indoor-outdoor activities by using only built-in sensors and uploads the activity log to a web server. By accessing the server, relatives etc. at remote locations can browse the log to make sure the elderly person is safe and sound. The evaluation experiment showed that the proposed system had practical recognition accuracy and satisfied the users' needs.