@INPROCEEDINGS{7997406,
  author={S. {Zhong} and Y. {Huang} and R. {Ruby} and L. {Wang} and Y. {Qiu} and K. {Wu}},
  booktitle={2017 IEEE International Conference on Communications (ICC)}, 
  title={Wi-fire: Device-free fire detection using WiFi networks}, 
  year={2017},
  volume={},
  number={},
  pages={1-6},
  abstract={Conflagration is one of the major disasters that threatens human life and property. If the proper action is not taken in detecting the symptom of conflagration events ahead of time, the number of such disasters will keep increasing. An effective solution in this context will alleviate many fire-related global problems to a great extent. Although fire detectors are not available in many places, WiFi networks are increasingly prevalent nowadays. Motivated by the previous works that used WiFi signals for the purpose of environment monitoring and activity recognition, we make an attempt to use WiFi signals to detect fire. Through several experiments, we find that fire influences the transmission of wireless signals uniquely, and consequently it affects the amplitude and phase of the resultant Channel State Information (CSI). Based on this observation, in this paper, we propose a device-free fire detection system, namely Wi-Fire, using commercial WiFi devices. To the best of our knowledge, this is the first work that leverages CSI of radio frequency (RF) signal to detect fire events using existing wireless infrastructure without requiring any additional device. We implement our proposed system on desktop computers equipped with commercial 802.11n network interface cards (NICs). Comprehensive experiments have been conducted for different scenarios in different environments to verify the effectiveness of our proposed system. The results verify that the fire detection accuracy of this training-based system is up to 96.67% on average.},
  keywords={Wireless fidelity;Feature extraction;Wireless communication;Detectors;Wireless sensor networks;Data mining;Internet},
  doi={10.1109/ICC.2017.7997406},
  ISSN={1938-1883},
  month={May},}