Evaluation of acoustical position determination in a classroom scenario

摘要

This study evaluates whether ultrasound tones can be used to determine position of mobile devices in classrooms. The aim is to use this position to find the seating scheme of students for another study in the area of e-learning. We have conducted several experiments to test mobile devices for their suitability. We have also performed experiments in real scenarios and implemented a software system that for position determination. We measure distances and apply the least-square algorithm to calculate the position of mobile devices.