Mobile controlling robot

What is a Robot ?

“A re-programmable, multifunctional manipulator designed to movematerial, parts, tools, or specialized devices through various programmedmotions for the performance of a variety of tasks.”

A robot must have the following essential characteristics:

Mobility: It possesses some form of mobility. Programmability: implying computational or

symbol- manipulative capabilities that a designer can combine as desired (a robot is a computer). It can be programmed to accomplish a large variety of tasks. After being programmed, it operates automatically.

Sensors: on or around the device that are able to sense the environment and give useful feedback to the device

Mechanical capability: enabling it to act on its environment rather than merely function as a data processing or computational device (a robot is a machine); and

Flexibility: it can operate using a range of programs and manipulates and transport materials in a variety of ways.

CONCEPT•In this project we use smart logic and control system of embedded system by micro controller.

•In this project we use DTMF and micro controller as main processors.

Block diagram

DTMF Decoder Dual-tone multi frequency (DTMF) is

used for telecommunication signaling over analog telephone lines in the voice-frequency band between telephone handsets and other communications devices

The version of DTMF that is used in push-button telephones for tone dialing is known as Touch-Tone.

Cntd…….

This is the internal pin diagram of the DTMF decoder

Cntd….

MICRO CONTROLLER

In our mobile control robot we are using 40 pin micro controller

Cntd…….

Micro controller consists of……….

8 kb of flash memory 256 bytes of RAM

32 Input and Output lines.

Three 16bit timer or counters.

A six vector two level interrupt architecture

VEHICLE CONTROL We use two small gear DC motors

to drive the small robot.

One motor for the left wheel and another one for right wheel.

Left motor drives for right turn and right for the left turn

MOTORS To make the mobile robot we need to

have motors and the control circuitry that could control the motors.

There are different kinds motors available for different applications

DC motors Stepper motors Servo motors

ADVANTAGES Wireless control.

Vehicle navigation with use of 3G technology.

Takes in the use of the mobile technology which is almost available every where.

Surveillance system.

DISADVANTAGES Cell phone bill.

Mobile batteries drain out early so charging problem.

Cost of project if cell phone cost included.

Not flexible with all cell phones as only a particular, cell phone whose experience is attached can only be used.

FUTURE SCOPE

Car driving.

We can add camera & other accessories to robot which can perform any desired task.

Cntd…..

Fire accident applications.

With the help of mobile phone we switch on/off the fountain also, with the help of fountain we spray the water vapour on the fire.

THANK YOU