obstacle avoidance robot summer training presentation
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GALGOTIAS COLLEGE OF ENGINEERING & TECHNOLOGY
SEMINAR PRESENTATION ON
OBSTACLE AVOIDANCE ROBOT BASED
ON EMBEDDED SYESTEMSUBMITTED BY :
SYED WASI ABBASB.TECH 3RD YEAR
(E.I. A)
ROLL NO. : 1209732903
SUPERVISED BY :
Mr. GULSHAN KR. DUBEY
ELECTRONICS & INSTRUMENTATION ENGINEERING
DEPARTMENT AT
In the partial fulfillment for the award of the degree of BACHOLERS IN
TECHNOLOGY
Session : 2013-2014
An Overview of Presentation
Introduction Design & Development of Obstacle
Avoidance Robot Study of Obstacle sensors Working of microcontroller & Motors Advantages, Disadvantages & Applications Acknowledgement & References
INTRODUCTION
The aim of this project to avoid any obstacle or object in front of robot
and automatically change its path.
If there is no objects or obstacles then robot
continuously go forward. In this project we are using IR
sensor pair (infrared transmitter and infrared
receiver) .
When any object comes in front of robot then IR sensor detects its presence and send signal to the
microcontroller. Now the microcontroller controls the movement
of dc motors which are connected to microcontroller i.e. robot change its path according to the presence and
position of obstacles.
Design and Development of Obstacle Avoidance
Robot
Graphical Block diagram: Obstacle Avoidance Robot
Block diagram: Obstacle Avoidance Robot
Interfacingcircuit of Robot
Interfacing circuit of Robot
OBSTACLE SENSORS
The obstacle senor is used to avoid the robot from the clash to any external devices (or) that is like walls, any obstacle which comes in its way. Here
we are using the IR communications .the transmitter and the receiver parts. The transmitter produces the IR rays and they are received by the
receiver section
Architecture of 8051 Microcontroller
MANUFACTURE S OF MICROCONTROLLER
Atmel
Dallas Semiconductor
Intel
Microchip
National Semiconductor
Texas Instruments
H-BRIDGE MOTOR DRIVER
The name "H-Bridge" is derived from the actual shape of the switching circuit which controls the motion of the motor. It is
also known as "Full Bridge". Basically there are four switching elements in the H-Bridge as shown in the figure below.
Direction P0.0 P0.1 P0.2 P0.3
Forward 1 0 1 0
Backward 0 1 0 1
Right 1 0 0 1
Left 0 0 1 0
Electrical motor
An actuator which converts electrical signal into rotation
Why only DC motor?
We all know that AC motors are normally
constant speed motors. Variable
speed ac drives uses very complex
circuitry because the ac motor speed
is varied by the frequency variation
and is not quite easy.
Stepper motor gives calculated angle of rotation they take
number of steps in one revolution they cannot be stopped in between the step. Also they are not
constant running motors their use is limited to the
area where you want calculated steps to be taken such as printers,
plotters, and other similar applications.
Advantages of DC motor:-
High starting torque & easy speed variations are some of the other characteristics of DC motors.
Advantages & Disadvantages
of obstacle avoidance robot
Advantages & Disadvantages
Advantages : Whenever robot senses any obstacle automatically diverts its position
to left or right and follows the path without human guidance. The programming of the microcontroller is easy. It is a low cost circuit.
Disadvantages : It is time consuming project. It is use for short distance only. It is not recommended to keep the range very long because this would
cause the ROBOT to keep moving forward and backward as it senses any obstacle, even far away from it.
It is not in human control
Applications
Obstacle sensing robot can be applied at the toys where small children will play.
It can used for the army application.
We can apply number pairs of IR pairs for the safe direction control of the robot.
In Mines.
FUTURE ASPECTS:
We can extend this project with wireless technology by IR (or) RF.
This robot can be used for pick and place the required object by giving directions to the robot but IR pair should be replaced depending upon the application.
By doing extra things, it can be use in Army application.
Photographs:
ReferencesBOOKS:
1.The 8051 microcontroller & Embedded System
( Mazidi , Pearson Education ,III edition)2.Mechatronics Principle and Applications
(Godfrey Onwobolu, Pearson Education)3.Embedded System ( Rajkamal, Pearson Education, II
edition)4. .Introduction to Robotics
(Vikram Kapila, Pearson Education,IV Edition)
Website:http://mechatronics.poly.edu
http://www.roboticswikipedia.com
http://www.mecatronicswikipedia.com
http://www.datasheets.com
http://www.J2RScientific.com
http://www.expresspcb.com
http://www.kiel51.com
http://www.8051microcontroller.com
Thank You
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