Wireless Gas Sensor Network for the Spatially Resolved Measurement of Hazardous Gases in Case of a Disaster. (2015)

• Record Type: Journal Article
• Authors: Rademacher, Sven; Schmitt, Katrin; Wöllenstein, Jürgen
• Is Part Of: Procedia engineering. Volume 120(2015)
• Page Start: 310
• Page End: 314
• Publication Date: 2015
• Subjects: wireless sensor network -- data fusion -- indoor localization -- gas sensors ;; Engineering -- Congresses; Engineering -- Periodicals; Engineering; Conference proceedings; Periodicals; 620.005
• DOI: 10.1016/j.proeng.2015.08.623
• Languages: English
• ISSNs: 1877-7058

Abstract

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.