Remote Land Rover Control System

8/3/2019 Remote Land Rover Control System

1/14

REMOTE LAND ROVER CONTROLSYSTEM BASED ON DTMF OF MOBILE

Submitted by

PL.ROOBINI(40708106077)

S.SUVEETHA(40708106099)

Guided by

Mrs.A.G.Praywin sheela


2/14

OBJECTIVEOBJECTIVE

Prime motive behind this project is todesign and implement in hardware, a mobilecontrolled robotic system for maneuveringDC motors .

Mobile platform is to be in the form of a robotcapable of standard locomotion in all directions.

The robot can be operated in two ways; either

by a call made to the mobile phone mounted onthe robot or by communication with a computerthrough a wireless Module.


3/14

EXISTING SYSTEMEXISTING SYSTEM

In the existing system wireless control

robots use RF circuits which have

drawbacks of

1.limited working range

2.limited frequency range

3.limited control


4/14

PROPOSED SYSTEMPROPOSED SYSTEM

In order to provide the advantage of

robust control , working range as large

as the coverage area of the serviceprovider , no interference with the

controllers upto twelve controls


5/14

MODULESMODULES

Hardware used:

MT8870 DTMF Decoder

ATMEGA16 MicrocontrollerL293D Motor Driver

74LS04 Not gate

IN4007 DiodeDC Motor


6/14

BLOCK DIAGRAMBLOCK DIAGRAM


7/14

DESCRIPTIONDESCRIPTION

DTMF Decoder:

Dual-tone multi-frequency signaling

(DTMF) is used for telecommunication

signaling over analog telephone lines in thevoice-frequency band between telephone

handsets and other communications devices

and the switching center. The version of DTMF

that is used in push-button telephones for tonedialing is known as Touch-Tone


8/14

ATmega16:ATmega16:The ATmega16 is a low-power CMOS 8-bit microcontroller

It gets input from the DTMF decoder.

By programming the microcontroller ,the motor driver is controlled.

Features:

16kb of system programmable flash memory with read/write,

512bytes of EEPROM,

1KB SRAM,

32 general purpose input/output lines, 12 MHz working frequency,

8 bit bidirectional 4 i/o ports.

Low power consumption


9/14

L293D DC Motor Driver:L293D DC Motor Driver:

To rotate 2-DC motors in

1.clockwise,

2.anticlockwise and

3.stop.

It acts as intermediate between ATmega and DC motors.

It gets the input logic from microcontroller.

It gives constant DC to motors until next logic change by MCU .

5V - for L293D operating voltage.


10/14

DC Motor:DC Motor:

DC motor is a machine which convert electrical energy in to

mechanical energy.

When the rotor coil is energized, electromagnetic field is

produced which in turn rotates the rotor.

DC motors will be used for,

high torque at low speed,

compact dimensions,

high precision,

low noise

long lifetime.


11/14

LITERATURE SURVEYLITERATURE SURVEY

R. Sharma, K. Kumar, and S. Viq, DTMFBased Remote Control System, IEEEInternational Conference ICIT 2006, pp.

2380-2383,December 2006.Kobayashi, A. and Nakamura, K. (1983).

Rescue Robot for Fire Hazards, Proc. ofInternational Conference on Advanced

Robotics, pp 91-98.


12/14

CONCLUSIONCONCLUSION

Hence, it can be concluded that mobile

controlled robots locomotion in

different directions can be controlled by

pressing the assigned keys on the

mobile phone (in this experiment; key 5

for forward motion, key 7 for left turn,

key 8 for stop, key 9 for right turn andkey 0 for backward motion).


13/14

FUTURE WORKFUTURE WORK

Modern 3G communication system may

be one of the intriguing features that can

be incorporated in our system to

discover the status and location of therobot.


14/14

THANK YOU

Documents

Remote Land Rover Control System