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Peer Synchronization Method for Wireless Sensor Network using Heterogeneous Bluetooth Sensor Nodes

Abstract

Synchronization of time is essential for correlation of sensor data. For body area network the sensors are distributed over multiple sensor nodes located on different parts of the body. When collecting sensor data using wireless sensor networks, the delay variation can be up to 1000 milliseconds. Physiological sensors, like ECG, accelerometer and gyroscopes, require a timing accuracy in the millisecond range. This paper describes a generic method to provide synchronized timestamps. The method is tested in a Wireless sensor network using Bluetooth and Bluetooth Smart sensor nodes. Results show that the method is usable for correlating sensor data with 50ms sample rate.

Category

Academic chapter/article/Conference paper

Language

English

Author(s)

Affiliation

  • SINTEF Digital / Smart Sensor Systems
  • SINTEF Digital / Software and Service Innovation

Year

2014

Publisher

SciTePress

Book

Sensornets 2014 Proceedings of the 3rd International Conference on Sensor Networks, Lisbon : 7-9 January, 2014

ISBN

978-989-758-001-7

Page(s)

175 - 180

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