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Volume 41 Issue 12
Dec.  2015
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Journal of Beijing University of Aeronautics and Astronautics  > 2015  >  41(12): 2205-2210.
ZHAO Jianhua, FANG Lili. Aircraft fire detection method based on CO2 concentration monitoring[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(12): 2205-2210. doi: 10.13700/j.bh.1001-5965.2015.0062(in Chinese)
Citation: ZHAO Jianhua, FANG Lili. Aircraft fire detection method based on CO2 concentration monitoring[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(12): 2205-2210. doi: 10.13700/j.bh.1001-5965.2015.0062(in Chinese)
shu

Aircraft fire detection method based on CO2 concentration monitoring

doi: 10.13700/j.bh.1001-5965.2015.0062

  • State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China

  • Received Date: 29 Jan 2015
  • Rev Recd Date: 04 May 2015
  • Publish Date: 20 Dec 2015
    Abstract
  • High false alarm of heat detection and smoke detection used in aircraft is an existed question for aircraft fire detecting. The production rule of gaseous combustion products in fires was analyzed, and CO2 was put forward as parameter of fire detection. Through accurate monitoring of CO2 concentration in the environment, the aircraft fire detection was realized. Considering the particularity of environmental condition on aircraft, non-dispersion infrared (NDIR)was used to resolve the challenge of temperature compensation in aircraft fire detection. According to the relationship among the measured voltage of aircraft fire detector, environment temperature and reference voltage, temperature compensating model for aircraft fire detector was established based on partial least squares (PLS) approach. And model for CO2 concentration calculating had built by using PLS method, which was based on correlation between measured voltage of aircraft fire detector and CO2 concentration. With the calculated concentration of CO2, an alarm algorithm for aircraft fire detector was presented then, which provided a new fire detection method for aircraft.

     

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