Fighting the Fire

Extinguishing Method

The robot uses a 12 V DC liquid pump to put out the fire by spraying 100 mL of water onto it. This pump is switched on through a MOSFET and uses a nozzle array to maximize coverage.

Water Pump

 

Real Flame vs Decoy

The robot will only spray water on a real flame.

Real candle

 

It will not spray water on a decoy.

Decoy

 

It is able to tell the difference between the two using a temperature sensor because the flame outputs heat but the decoy does not.