TABLE OF CONTENTS Andreas Savvides
Electrical Engineering Department
Yale University, New Haven, CT 06511
andreas.savvides@yale.edu
Mani Srivastava
Electrical Engineering Department
University of California, Los Angeles, CA 90095
mbs@ee.ucla.edu
| Abstract | This chapter describes our experiences with the design and use of a rapidly installable self-configuring beaconing system. Our system is comprised of a set of custom-designed wireless sensor nodes, the Medusa MK-2 nodes that can form a local coordinate system a few seconds after they are deployed. This results in a versatile, low-cost system based on battery operated devices eliminates the need for costly and time-consuming infrastructure installations. During the system bootstrapping phase, the Medusa Kindergarten - 2(MK-2) nodes localize themselves and then enter a service phase in which they act as "satellites" that assist other objects in the room to determine their locations with a few centimeters of accuracy. |
| Keywords: | Sensor networks, node localization, location aware systems. |
As wireless embedded systems evolve, location awareness is becoming a fundamental requirement for small wireless devices to operate autonomously and it is the key enabler for many applications. This chapter reports our experiences in adding location awareness to a deeply instrumented system for observing the level of children interaction during early childhood education. This work was conducted as part of the Smart Kindergarten project [9, 8] at the University of California, Los Angeles. The Smart Kindergarten project aims to develop a deeply instrumented environment for studying child development in early childhood education. The overall goal of the project is to provide the necessary infrastructure...
