The Fire Fighter
A Trully Fire Fighting bot, that detects flames in an arena and
extinguishes it.
The objective of the contest is to build a robot, which will
extinguish a fire in the quickest time possible. A candle will
represent the fire, which has started in the home and which the
robot must find and then extinguish. The light level of th e
surrounding in the testing area will be determined until the day of
the competition. For this reason, a light sensor cannot be used to
detect the fire. In order words, the robot must be able to make
ambient light reading as part of its design complementation.
However, it is assumed that the room will be lit by overhead high
pressure sodium vapor lights. Knowledge of the surrounding light
must be taken into consideration in order to make an appropriate
fire sensor. Thus far, it seams like it will better to utilize a
heat sensor.
The flame can be sensed by heat, light or both. My bot
sensed the light because, a light sensor OPT173 from Texas
Instruments has a range of 1m or so. I can detect the light from a
distance and move towards it. When the flame is too close, the
sensor saturates and the fan is switched on to extinguish the flame.
Components:
