Prepared by : TOLERA TAMIRU SAMSON NIGUSE Microcontroller based Fire Fighting Robot

Outline  Introduction  Statement of problem  Objectives  Scope  Literature review  Methodology  Component Used  Conclusion  References

INTRODUCTION  Most of the fire accidents occurring in Home, industries, University like  nuclear power plants,  petroleum refineries,  gas tanks  chemical factories  Fire fighting is the act of extinguishing destructive fires.  A firefighter must be able to stop fire quickly and safely extinguish the fire, preventing further damage and rescue victims to a safer location from the hazard.

What is a fire fighter robot?  A robot that detects the fire and extinguish it.  Should work automatically and detect the flame.  A good replacement of fireman in dangerous places.

Why fire fighter robot?  Now a days if any fire accidents happens in Power plants, Buildings, etc., the time and consumption of human power is high. So there may be a possibility of Heavy damage to human beings and wealthy.  The elimination of fire before it spread away will avoid the effects of fire.

Statement of problem  Firemen are more vulnerable to death in the course of their daily routine firefighting.  The time factor is a problem in a fire situation  Fire caused by gas leak and chemical oil could cause an explosion, so dangerous to human life.  The use of robots is one of the alternative medium for reducing firemen casualties and enhancing fireman capabilities.

Objective General objective To develop and design a Fire Fighting Robot by using Arduino microcontroller. Specific objective Design and development of low cost firefighting robot. To design a robot that is able to avoid obstacles, detect fire next extinguish fire. Run automatically firefighting robot. To determine the use of multiple sensors for various sensing on the robot. To reduce and save human life especially fireman who expose to danger while extinguish the fire.

Scope  Select the suitable material to develop the robot.  The developing of programming is necessary to develop a mechanism of the robot.  The potential of Fire Fighting Robot acts during extinguish flame, including:-  Detection of fire  Extinguish fire

Literature review  Thermite Fire Fighting Robot: -  It is a remote control and can operate as far as 400m.  Rolly Firefighter Robot:-  designed to search for a fire in a small floor plan of a house.  The navigation of the robot throughout the house is achieved by data provided by a line tracker and ultrasound transducers.

METHODOLOGY AND DESIGN: Steps of building the module  Movement step.  Flame tracking step.  Extinguishing Fire step.

Movement step  Read from front sensor if it’s less than specified value go forward. Else stop and find new route.  Find new route by going backward.Read left and right sensors. If left distance less than right distance then turn left else turn right.  Go back to first step.

Flame tracking step  After we test the movement model we integrate the flame sensor to the model.  The flame sensor is an array of sensors, it detect the fire from front, left and right. So, in this step the robot will not move until the flame sensor sense the fire.

Extinguishing Fire step  The robot track the flame.  When the fire is near stop and turn on the pump.  While the water pump is running the robot will keep sensing the fire if no flame (fire) then it will turn off the buzzer and pump.

ARDUINO ATMEGA Fire sensor left Fire sensor front Fire sensor right Fire sensor back Ultrasonic sensor Relay circuit Relay circuit Solenoid valves Water pump Right DC motor Left DC motor Power supply Buzzer Block Diagram for Fire Fighting robot.

Start Motor run Flame sensor Ultrasonic sensor MoveRotate Detect Fire Detect Object YES Forward NO Relay Switching Solenoid Valve Actuation Water Passes to the Open Sprinkler If(FLAME == 0) Stop YES NO

Component Used  Arduino Atmega  Fire sensor or Flame sensor (3 Nos)  Servo Motor (SG90)  L293D motor Driver module  Small Breadboard  Robot chassis with motors and wheel  A small can  Connecting wires

CONT’s  Flame sensor  Servo Motor  Water pump  Buzzer

Software Used  Proteus Design Suite 8.7  Arduino IDE