New Wi-Fi-based fire sensing technology

UNSW engineers have developed a new fire detection system that monitors changes in Wi-Fi signals. Promising to be cheaper and easier to maintain than existing thermal camera technology, the system can detect with greater accuracy whether any atmospheric changes are being caused by a real fire, and if so, raise an alarm or trigger an automatic sprinkler system. A controlled test detonation of a car, planned by the Sydney Harbour Tunnel Company, recently provided further data to demonstrate the effectiveness of the technology.