Abstract
In this paper, we propose a system that records human behavior continuously by using ubiquitous sensors. We constructed a room where ubiquitous sensors are embedded (i.e. RFID tags for foods, tableware, and a cellular phone, magnet sensors for doors and drawers, a laser range finder for human position recognition). In addition to the above sensors, we developed a universal remote controller to recognize the usage of various consumer electronics. Information obtained by the ubiquitous sensors and the universal remote controller with time stamp is continuously stored in the database server. With an experiment by a subject, we confirmed the sufficient information for knowing human behaviors is stored in the database.
