Movement-based Group Awareness with Wireless Sensor Networks

Marin-Perianu, Raluca and Marin-Perianu, Mihai and Havinga, Paul and Scholten, Hans (2007) Movement-based Group Awareness with Wireless Sensor Networks. In: 5th International Conference on Pervasive Computing, PERVASIVE 2007, 13-16 May 2007, Toronto, Canada.

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Abstract:	We propose a method through which dynamic sensor nodes determine that they move together by communicating and correlating their movement information. We describe two possible solutions, one using inexpensive tilt switches, and another one using low-cost MEMS accelerometers. We implement a fast, incremental correlation algorithm, which can run on resource constrained devices. The tests with the implementation on real sensor nodes show that the method distinguishes between joint and separate movements. In addition, we analyse the scalability from four different perspectives: communication, energy, memory and execution speed. The solution using tilt switches proves to be simpler, cheaper and more energy efficient, while the accelerometer-based solution is more accurate and more robust to sensor alignment problems.
Item Type:	Conference or Workshop Item
Copyright:	© 2007 Springer
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Pervasive Systems (PS)
Link to this item:	http://purl.utwente.nl/publications/66603
Official URL:	http://dx.doi.org/10.1007/978-3-540-72037-9_18
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