A space identification system and its robot application using wearable devices

In this paper, we present a space identification system and its robot application using wearable devices. The system was developed to recognize the current space information of the user based on data fusion from signal strengths, infrared lights, and network topology information through a wireless sensor network environment. The system was also implemented to determine on reference to the result data of activity recognition. As a case of our robot application, we show a vision-based user approach. In near distance within less than five meters, the robot can find people using a vision-based algorithm. When the robot is called, the robot moves to the location using space identification, and gets people´s faces information in the space using face recognition algorithm, and calculates the average size of faces in each group, and estimates a distance apart, and then approaches the caller.