DBPapers
DOI: 10.5593/SGEM2014/B42/S19.075

THE CONCEPT OF WIRELESS SENSOR NETWORK FOR EARLY WARNING IN THE CASE OF ACCIDENTAL RELEASES

J. Suchanek, Z. Zelinger, V. Nevrly, P. Bitala, M. Ferus, M. Dostal, J. Dlabka,
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-16-2 / ISSN 1314-2704, June 19-25, 2014, Book 4 ,Vol. 2, 567-574 pp

ABSTRACT
Recent development of promising instrumentation based on spectroscopic sensor technology and the concept of methodology for data handling and interpretation is presented by this work. Conventional experimental setup for tunable diode laser spectroscopy employing vertical cavity surface emitting laser (VCSEL) operating near 1300 nm was utilized for measurements in laboratory conditions. Characteristic spectral features of ammonia, hydrogen fluoride and methane were found in the tuning range of available VCSEL diode, implying feasibility of the given technique for construction of sensor nodes. Implementation of such units into the wireless sensor networks and early warning systems for risk areas and industrial sites is therefore presumed. This work summarizes some aspects concerning NIR-TDLAS measurement technique, sensor node construction and presents innovative concept of designing the sensor network, data handling and interpretation.

Keywords: gas detection, sensor network, laser diodes, dangerous chemicals, accident