The detection of evaporating hazardous material released from moving sources using a gas sensor network

Abstract Sensor information resulting from distributed locations and/or a multitude of instruments and heterogeneous sensors can increase the reliability of safety and security applications. A gas-sensing platform was developed, communicating via a wireless sensor network based on IEEE 802.15.4 and/or Ethernet. Data from this network are aggregated via a central server feeding its information via TCP/IP into subsequent data fusion software. The usually limited spatio-temporal resolution of chemical sensors can be compensated by space-time sensor data fusion. Sensor nodes have been equipped with metal oxide gas sensors in order to identify hazardous materials [1] . A number of these nodes have then been placed alongside a corridor people had to pass to enter a restricted area. The data from the chemical sensors were fused with tracking data from laser range scanners and video systems. It has been shown that it was possible to allocate a chemical contamination of one individual within a group of moving people and discriminate between various fire accelerating fuels and solvents. This was successfully demonstrated outside the laboratory with a test corridor build in a tent during a military tech-demo in Eckernforde, Germany.

[1]  Wojtek Wlodarski,et al.  Car cabin air quality sensors and systems , 2006 .

[2]  Dermot Diamond,et al.  A wireless sensor network for methane monitoring , 2007, SPIE Optics East.

[3]  Udo Weimar,et al.  Gas identification by modulating temperatures of SnO2-based thick film sensors , 1997 .

[4]  Richard T. McNider,et al.  Ozone production during an urban air stagnation episode over Nashville, Tennessee , 1998 .

[5]  Krishna C. Persaud,et al.  Improving Drift Correction by Double Projection Preprocessing in Gas Sensor Arrays , 2009 .

[6]  Member Ieee,et al.  Single Odor Source Declaration by Using Multiple Robots , 2009 .

[7]  Gian Luca Foresti,et al.  A security assistance system combining person tracking with chemical attributes and video event analysis , 2008, 2008 11th International Conference on Information Fusion.

[8]  Craig A. Grimes,et al.  Encyclopedia of Sensors , 2006 .

[9]  Amine Bermak,et al.  Temperature Modulation for Tin-Oxide Gas Sensors , 2008, 4th IEEE International Symposium on Electronic Design, Test and Applications (delta 2008).

[10]  Tughrul Arslan,et al.  Implementation of Hardware Encryption Engine for Wireless Communication on a  Reconfigurable Instruction Cell Architecture , 2008, 4th IEEE International Symposium on Electronic Design, Test and Applications (delta 2008).

[11]  Wolfgang Koch,et al.  Combined person tracking and classification in a network of chemical sensors , 2008, 2008 11th International Conference on Information Fusion.

[12]  Jan Mitrovics.  Auswerteverfahren für Gassensorarrays , 2004 .