Synopsis

on

Arduino UNO3 base Fire extinguisher robot

Submitted to:

Submitted BY:

RAMGARIAH INSTITUTE OF ENGG. & TEchnology

Contents

Introduction.

Concept.

Circuit Diagram.

About Motors.

Components used in this Project

Bibliography.

Fire extinguisher Robot

Introduction:

In this project we show that how we control the movement of any small robot with the help of sensors. We will use thermistor for detecting fire .

          Our project is to be divided into few parts.

Automatic Vehicle

Fountain sprayer

LDR circuit for fire detection

CONCEPT:

In this project we use smart logic and control system of embedded system by using microcontroller. In this project we use ic ATMEGA arduino as a main processor.. microcontroller sense the signal and drive the motor of the robotic vehicle. .

 will use LDR circuit for fire detection. We are using this sensor because we want to implement this concept in godown point of view.

We will use transistorized signal conditioning circuit for detection of signal from LDR sensor. After detection circuit we will give signal to microcontroller ATMEGA at port 1. so we have to study  signal AVR for detection and control purpose. We will give signal to optocouplers . optocouplers will give signal to H bridge circuit . optocoupler works as a isolator and as a  switch.

Output of the microcontroller is connected to the optocoupler circuit. Here in this project we use ic pc 817 as a  optocoupler to interface the  microcontroller to small slow speed dc gear motor. One gear motor drive the  vehicle and second gear motor change the front wheel of vehicle..

Power supply circuit.

In this project we use 9 volt battery to drive the vehicle. One 9 volt battery for the microcontroller circuit. Second 9 volt battery  drive  the motor driver circuit . Here in the project we one 5 volt regulator circuit. Output of the 9 volt dc is converted into 5 volt dc by using  7805 regulator circuit. Ic 7805 regulator converts the  9 volt dc into 5 volt dc with the help of the 5 volt regulator 7805.

 

 

 

 

 

COMPONENTS USED:

IC 8870(1)

IC 74154 (1)

Arduino UNO3

PC 817(4)

CRYSTAL ( 3.58 Mhz), (12 MhZ)

7805 REGULATOR.

NPN TRANSISTOR BC 548 (4)

PNP TRANSISTOR BC 558(4)

RESISTOR:

470 OHM(4)

4.7 K OHM (4)

1 K OHM (4)

22K OHM (2)

100 K (1)

10 K(4)

L.E.D(2)

CAPACITOR

1000mfd(1),

10 mfd(1), .

1mfd(104) (2),

22pf(2)

DC MOTOR ( GEAR MOTOR) 2 MOTOR’S