Robotics- Intro - The Mystique

Robotics- Intro

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INTRODUCTION TO ROBOTICS

WHAT IS A ROBOT

         A robot is anything which supplements human.It is a simple and understandable definition of robot
Coming to the classification of robots, people around the world classify them considering various parameters.
I am dividing on the basis of it's locomotion.Various kinds of robots are

  1. STATIONARY ROBOTS
  2. WHEELED ROBOTS
  3. LEGGED ROBOTS
  4. FLYING ROBOTS
  5. SPHERICAL ROBOTS
  6. SWIMMING ROBOTS
  7. OTHERS
These are the different kinds of robots so far.
     My main aim in publishing this post is to help the students in building "wheeled robots".A wheeled robot is a robot which moves on wheels.These are further classified into 2 types

  1. PROGRAMMABLE
  2. NON PROGRAMMABLE

First we will consider the "non-programmable wheeled robots".  Let me start with the parts of the simple four wheeled robot.



CHASSIS

SIMPLE CHASSIS


 This is a simple chassis.Chassis acts as a base for the whole robot. On this we should mount our required things such as
motors,wires and any other different modules which depend
on our requirement. Simple chassis are made from sheet
metal, however we can make chassis from plastic,steel,
aluminium etc. Most important point is to check whether
our chassis can withstand the weight of other things or not.




MOTORS

DC MOTOR
Robots work on dc power.So,this is a simple dc motor.DC motors are 
rated on the rpm(rotations per minute). There are different dc motors 
ranging from 30rpm to 1000rpm. We can also find motors having rpm
more than 1000,which are specially designed to suite industrial applications. the torque produced by these motors are inversely proportional to the rpm of the motor. Suppose your robot need to climb
an incline and if you select a 1000rpm motor then your robot fails. As your motor has less torque it can easily rotate in opposite direction. So 
your robot fails and it is always advisable to select a motor which can 
accomplish your task.Generally 300rpm motors are advisable.There are different kinds of  motors which will be discussed in the later posts

WHEELS

WHEELS
Wheels are required for the movement of the vehicle. There are different kinds of wheels.Selection of wheels depends on the surface 
on which they are used.For plane surface like floor we can use smooth
wheels. But for sand and mud surface it is better to use wheels with grooves on them.





BATTERY

12V BATTERY


Battery is the power source for the entire robot. These are rated according to the output voltage. It's quite comfortable to use a
12v battery but we must also check the current rating, it should not
be too high nor too low.High current may damage your motor wiring
So be careful while selecting battery.








PLEASE VIEW THE BLOG FOR THE POWER AND SWITCHING IN THE NEXT POST




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Related articles:

Power And Switching

Introduction to Programmable Robots 

How to Program AVR Microcontrollers?


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