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APresentation

OnA Cell phone operating Robot vehicle based on Embedded system

Presented in partial fulfillment of Bachelors Degree in TechnologyRajasthan Technical University

Kota

[Session: 2011-2012]

Submitted To: Presented By: HoD Sir Harvinder singh

Roll no. 08ESBEC043Department of Electronics & Communication Engineering

Sri balaji College of Engineering & TechnologyJaipur


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CONTENT

Company Profile Introduction

Project Description

Working

Applications Future Enhancement

Conclusion

Training certificate.


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Company Profile

CMC Limited is an Information Technology services.

It is a consulting and software company having its Headquarters in NewDelhi, India.

CMC is part of the TATA group and is a subsidiary of Tata ConsultancyServices(TCS).

CMC was incorporated on December 26, 1975, as the 'ComputerMaintenance Corporation Private Limited.

On August 19, 1977, it was converted into a public limited company.

In October 2001, CMC was privatized by the Government of India, in a-


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Embedded System

Definition:

An Embedded system is a computersystem designed to do one or a few

dedicated or specific function oftenwith real-time computing constraints.

The real-time constraint in this system isthe time in which the function must be

performed. It have computer hardware and software

embedded as parts of a completedevice or system.


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Embedded System in general life

Embedded systems range from portable devices suchas digital watches and MP3 players.

Other large stationary installations like trafficlights, factory controllers.

Many household appliances, such as microwave

ovens, washing machines and dishwashers, are alsoincluding embedded systems.

Another example Home automation which uses wired-and wireless-networking that can be used to controllights, security, surveillance, etc. all of this use

embedded devices for sensing and controlling. Various electric motors-Induction motors and DC

motors are using electric/electronic motor controllers.


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A project cell phone operated robotvehicle based on Embedded system.


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Project Description

Conventionally, Wireless-controlled robots use RFcircuits, which have the drawbacks of limited workingrange, limited frequency range and the limitedcontrol.

Use of a mobile phone for robotic control canovercome these limitations. It provides the advantageof robust control, working range as large as thecoverage area of the service provider.

In this project the robot, is controlled by a mobilephone that makes call to the mobile phone attachedto the robot in the course of the call, if any button ispressed control corresponding to the button pressedis heard at the other end of the call.


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Component used

Atmega microcontroller IC.

L293D 16 pin motor driver IC.

HT9170 DTMF 18 pin decoder IC.

Crystal oscillators.x1-12MHz

x2-3.57MHz

5 led s.

1 Voltage regulator IC 7805. DC Motors 12v, 300 rpm.

12 v DC Adapter.


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Component used (contd.)

Capacitor Two electrolytic capacitor (1000 MFD each).

Four 0.1 MFD capacitor.

One 10 MFD capacitor.

Two ceramic capacitor(33pf each).

Resistance

Two 47k ohm.

Four 1.2k ohm.

One 10k ohm.

One 2.2k ohm.


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Software used

KIEL uVisionThe Vision IDEfrom Keilcombines project

source codeediting, programdebugging, and

completesimulation in onepowerfulenvironment.

The Vision


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Burner or Programmer(device) used

DESCRIPTION

Burner is a

programmerwhich is used forburn source codein microcontroller

via computer orlaptop.

Burner is USB

based device

DIAGRAM


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Block Diagram


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Circuit Diagram


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Working

Technique Used:- DTMF(Duel tone Multi Frequency0 In this project, the robot is controlled by a mobile phone

that makes a call to the mobile phone attached to the robot.

In the course of a call, if any button is pressed ,a tonecorrespond in the button pressed is heard at the other endof the call.

This tone is called dual-tone multiple-frequency (DTMF)tone.


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Working (Contd.)

When we press a button from mobile keypad Adual Frequency tone is generated which is uniqueidentification of that particular number.


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Working (Contd.) Now this tone is fed in to DTMF decoder

IC(HT9170) which generate 4 bit binary output. These output table is as followed:-


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Working (contd.)

Now 4 bit output of this Decoder IC is applied atthe input pins of microcontroller IC.

Then microcontroller IC provide two couple of bitswhich is fed in to l293d motor IC.

Now this(l293d) IC will drive two motorsaccording to controller IC output which isconnected with this IC.


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Click to edit Master subtitle style

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Program Used

#includesbit Sw1=p1^0;sbit Sw2=p1^1;sbit Sw3=p1^2;

sbit Sw4=p1^3;sbit m11=p2^0;sbit m12=p2^1;sbit m21=p2^2;

sbit m22=p2^3;


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Program used

int main(){

sw1=1;

sw2=1;

sw3=1;

sw4=1;

m11=0;

m12=0;

m21=0;

m22=0;

}


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Program used

if(sw1==0)//for forward logic

{

m11=1;

m12=0;m21=1;

m22=0;

}


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Program used

if(sw2==0)//for left logic

{

m11=0;

m12=0;m21=0;

m22=0;

delay(500);

m21=1;m22=0;

}


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Program used

if(sw3==0)//for right logic

{

m11=0;

m12=0;m21=0;

m22=0;

delay(500);

m11=1;m12=0;

}


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Program used

if(sw4==0)//for backward logic

{

m11=0;

m12=0;

m21=0;

m22=0;

delay(500);

m11=0;

m12=1;m21=0;

m22=1;

}


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Program used

void delay( int i)

{

int i;

for( i=0;i


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Application

As a spy robot. In military Applications. In difficulties & in accidents.


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Future Enhancement

Installation of a camera on robotvehicle for scene of site where robotis present.


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Conclusion

We have learnt about use of embeddedsystem.

We have learnt about the dtmf technique.

We have learnt about the dtmf decoder IC,microcontroller & motor driver IC.


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Certificate of Training


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thanks


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QUERY?

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