Home // International Journal On Advances in Systems and Measurements, volume 11, numbers 1 and 2, 2018 // View article

MobileTimeSync - An Android App for Time Synchronization for Mobile Construction Assessment

Authors:
Maik Benndorf
Marika Kaden
Eric Zuchantke
Frederic Ringsleben
Thomas Haenselmann
Martin Gaedke

Keywords: time synchronization; clock skew; clock drift; sensor networks; mobile devices; smartphones

Abstract:
Modern smartphones offer more use-cases than (just) pure communication. These devices, equipped with several sensors, can be used as measuring devices, for example. In order to compare and interpret the sensor data obtained from multiple devices, precisely synchronized clocks are needed. Since all clocks are subject to inaccuracies, a synchronization method is necessary. In this article, we propose MobileTimeSync - an Android app for time synchronization. We suggest how to align clocks based on ultrasound beacons to mutually take clock drift and skew into account. In addition, we will discuss the different kinds of time sources in Android smartphones. With our approach, we obtain a precision, which can be expected from traditional synchronization approaches such as Network Time Protocol but with much less effort.

Pages: 13 to 21

Copyright: Copyright (c) to authors, 2018. Used with permission.

Publication date: June 30, 2018

Published in: journal

ISSN: 1942-261x