Outdoor playground localization system for tracking young children using ubisense sensor network

Localization systems are wildly used in the applications which need the accurate location of tracking objects. In this paper, we use Ubisense sensors and corresponding proprietary software to create such a system, and adjust it to fit into the outdoor playground environment where the monitored targets are the toddler-age children. After the system is implemented, we collect the raw location data of each tag from Ubisense software and import them into our self-developed program for storage. Practical test and theoretical analysis of tracked location data are conducted after the system is configured. We conclude that our system can better help the educator design the layout of the playground, determine the sub-zone occupied with most children, and investigate the children's preference activities or toys.