A novel application of Bluetooth technology for detection of forest fires

In designing a detection system for forest fires, we encounter four challenges: detecting the fire, locating the fire, transmitting the information across a long distance, and keeping the system cost low. We propose such a device, PyroVision, which addresses these problems. Specifically, we demonstrate that Bluetooth technology leads to a low cost for a PyroVision node. A grid system allows locating the fire without using GPS. To deal with Bluetooth's poor transmission range, we replace the original antenna with a dipole structure and we also incorporate node hopping. According to our field measurements, the distance between two transmitters in an area with trees can be 42 meters, while in a clear area, it can be increased to 88 meters.