Clock synchronization over bluetooth
Clock synchronization is key to many applications of wearable device networks. High synchronization accuracy requires platform-dependent hardware-level timestamping, which is not possible for wearable devices from different platforms. Clock synchronization done on application layer ensures univer...
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sg-ntu-dr.10356-727982023-03-03T20:44:34Z Clock synchronization over bluetooth Pham, Bao Trung Tan Rui School of Computer Science and Engineering DRNTU::Engineering::Computer science and engineering::Computer systems organization::Computer-communication networks Clock synchronization is key to many applications of wearable device networks. High synchronization accuracy requires platform-dependent hardware-level timestamping, which is not possible for wearable devices from different platforms. Clock synchronization done on application layer ensures universality for heterogenous platforms but has lower accuracy. This research aims to evaluate the universal principle of Network Time Protocol, an application level approach, and propose a new approach using external signals to assist clock synchronization. Different types of external input from sensors are studied to determine the most suitable for clock synchronization. These different approaches are implemented using Adafruit Flora and Android smartphones, which support Bluetooth and have sensors to detect external signals. Evaluation of results shows that clock synchronization assisted by audio input has the best performance, with error of less than 1 millisecond. Bachelor of Engineering (Computer Science) 2017-11-17T12:08:33Z 2017-11-17T12:08:33Z 2017 Final Year Project (FYP) http://hdl.handle.net/10356/72798 en Nanyang Technological University 39 p. application/pdf |
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DRNTU::Engineering::Computer science and engineering::Computer systems organization::Computer-communication networks Pham, Bao Trung Clock synchronization over bluetooth |
description |
Clock synchronization is key to many applications of wearable device networks. High
synchronization accuracy requires platform-dependent hardware-level timestamping, which is
not possible for wearable devices from different platforms. Clock synchronization done on
application layer ensures universality for heterogenous platforms but has lower accuracy. This
research aims to evaluate the universal principle of Network Time Protocol, an application level
approach, and propose a new approach using external signals to assist clock synchronization.
Different types of external input from sensors are studied to determine the most suitable for
clock synchronization. These different approaches are implemented using Adafruit Flora and
Android smartphones, which support Bluetooth and have sensors to detect external signals.
Evaluation of results shows that clock synchronization assisted by audio input has the best
performance, with error of less than 1 millisecond. |
author2 |
Tan Rui |
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Tan Rui Pham, Bao Trung |
format |
Final Year Project |
author |
Pham, Bao Trung |
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Pham, Bao Trung |
title |
Clock synchronization over bluetooth |
title_short |
Clock synchronization over bluetooth |
title_full |
Clock synchronization over bluetooth |
title_fullStr |
Clock synchronization over bluetooth |
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Clock synchronization over bluetooth |
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clock synchronization over bluetooth |
publishDate |
2017 |
url |
http://hdl.handle.net/10356/72798 |
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1759852989379510272 |