Hallway monitoring: distributed data processing with wireless sensor networks

Authors:
Tobias Baumgartner;Sándor P. Fekete;Tom Kamphans;Alexander Kröller;Max Pagel
Affiliations:
Braunschweig Institute of Technology, IBR, Germany;Braunschweig Institute of Technology, IBR, Germany;Braunschweig Institute of Technology, IBR, Germany;Braunschweig Institute of Technology, IBR, Germany;Braunschweig Institute of Technology, IBR, Germany
Venue:
REALWSN'10 Proceedings of the 4th international conference on Real-world wireless sensor networks
Year:
2010

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Abstract

We present a sensor network testbed that monitors a hallway. It consists of 120 load sensors and 29 passive infrared sensors (PIRs), connected to 30 wireless sensor nodes. There are also 29 LEDs and speakers installed, operating as actuators, and enabling a direct interaction between the testbed and passers-by. Beyond that, the network is heterogeneous, consisting of three different circuit boards--each with its specific responsibility. The design of the load sensors is of extremely low cost compared to industrial solutions and easily transferred to other settings. The network is used for in-network data processing algorithms, offering possibilities to develop, for instance, distributed target-tracking algorithms. Special features of our installation are highly correlated sensor data and the availability of miscellaneous sensor types.