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Wireless gas sensor network for the spatially resolved measurement of hazardous gases in case of a disaster

 
: Rademacher, Sven; Schmitt, Katrin; Wöllenstein, Jürgen

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Volltext (PDF; )

Procedia Engineering 120 (2015), S.310-314
ISSN: 1877-7058
European Conference on Solid-State Transducers (Eurosensors) <29, 2015, Freiburg>
Englisch
Zeitschriftenaufsatz, Konferenzbeitrag, Elektronische Publikation
Fraunhofer IPM ()
wireless sensor network; gas sensor

Abstract
A sensor network with sensor nodes for the spatially resolved measurement of hazardous gases and the reconstruction of the gas distribution in case of a disaster is presented. After the distribution of the sensor nodes in a disaster environment, e.g. with unmanned ground vehicles or unmanned aircraft systems, the sensor nodes work autonomously. To establish a pollution map, showing for example hazardous gas distribution, three main tasks were carried out: the detection of toxic gases with gas sensors, the low-cost indoor localization of the sensor nodes and sensor data fusion and reconstruction of the distributed physical phenomenon. The aim is a complete decentralization where measurements and data evaluation take place in the network. We use ultrasonic time of flight measurements for indoor localization and a two-step method for the reconstruction of the gas distribution in a room.

: http://publica.fraunhofer.de/dokumente/N-378974.html