Colour sensor based object sorting robot @1000KV Technologies 9030844877

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 04 Issue: 08 | Aug -2017 www.irjet.net p-ISSN: 2395-0072
© 2017, IRJET | Impact Factor value: 5.181 | ISO 9001:2008 Certified Journal | Page 504
COLOUR SENSOR BASED OBJECT SORTING ROBOT
Rudresh.H.G1, Prof. SHUBHA.P2
1Student, M.Tech 4thsem,Dept of E&IE Dr. A.I.T, Bengaluru-56
2Assistant Professor Dept of E&IE A.I.T, Bengaluru-56
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Abstract - The Project deals with an automatic material
handling system.Itcoordinatesthemovementofroboticarm
pick the items moving on the conveyor belts. It aims in
organizing the coloured objects which are approaching on
the conveyor by picking and placing the objects in its
separate located place. There by reducing the tedious work
done by human, accomplishing accuracy and rapidity in the
work. The project includes colour sensors that senses the
items color and lead the signal to the controller. The
microcontroller guides signal to the motor driving circuit
which drives the different motors of therobotic armtograsp
the object and place it in the correct location. Depending
upon the colour sensed the robotic arm go’s to the correct
location to releases the object and comes back to the normal
potion.
1. INTRODUCTION
1.1 OVERVIEW
Robotiscomputer-generatedmachine-drivenagent.
It is typically a electro-mechanical engine in which it is
directed by the workstation or microelectronic software
design, therefore capable of doing jobs on it’s individual.
Alternative collective characteristics is that by it’s presence
of actions, the robot frequently delivers a logic that it has
determined of action of it’s own. Though the presence and
abilities of robot is massively varies, featuredsegmentsofall
robots are automaticandthoseportablearrangementsarein
some form of under control. This director the robot to three
separate functions called processing, action, and phase-
perception. In public the attached sensor on the robot are
preceptors, the onboard microcontroller or processors are
the main units for processing and action is performed by
using motor or additional mechanical elements.
In this i present a new project called a object sorting robot
by recognizing the different colors of the object, this robot is
helpful in collecting the object that are on the moving
conveyer place and distributes those objects in correct
location with different color. Many manufacturing workings
areas are dangerous for persons to do hisjobthereforeusing
of this robot are to reduce the risky work, time consumption
and labor limitation. It is built by using the simple
electronics devices like microcontroller for processing, DC
motors for actions and color sensor for recognizingdifferent
colored objects.
1.2 PROBLEM STATEMENT
Based on a survey conducted in a helmet manufacturing
company, there was a problem regarding the count of the
total manufactured products and also, there were various
assembly lines for every different colored helmet. The main
idea was to provide a single conveyor for all the different
colored products which would decrease the work space and
labor cost but also provides the basic functionofsegregating
different colored objects into its respective boxes. Also, the
accurate count of the manufactured products could be
centralized using wireless communication.
In a food packaging industry huge amount of time and labor
was invested in segregating raw and ripened tomatoes. An
object sorting robot would decrease the time, work space
and labor cost while providing the basic function.
To decrease human works in operating the mechanical
machines, different functionality robotic arms are
established. Different functionality arms that are used in
robotics are designed and developed to handle the jobs that
are repeated. Different considerations are taken care to
design the automation system. To design a high strength
mechanical structure, these are the important parameters
are to be consider and those are load bearing capacity,
optimum weight, degree of rotation andspeedofmovement.
In the form of designing an electronics system the
specification of the used electronics devices are to be
considered.
1.3 OBJECTIVES
 To make the process of sorting the material, this pick
and place robot is being designed.
 In some of industries use man power to transfer the
material form one place to other by repeating this for
a period of time it will cause injuries to an operator.
 The use of this robot make the work simple for the
operator, and no longer to bend and lifts up the
materials, this reduce the cause of injuries to the
operator and increasing the work efficiency.
1.4 METHODOLOGY
In this project, it used a simple method for sorting
the materials of a different coloured objects, it is
sensing the colour of the object and sort out the
different coloured objects. With the help of a robotic

arm that is controlled by a controller unit is pic and
place the same coloured object in the prescribed area.
Flow chart 1.1: Methodology
These are the different unit in the design of the
product those units will work with the co-ordination ofeach
other’s in a particular time of intervals for the correct
operation for the efficient process, and those are listed
below.
Control unit: This is the main unit in the device it is capable
of controlling the all other units.it will accept the signal from
the input units such as sensor unit and capable of analyzing
the signals from the input unit and delivers the signalstothe
outputs units such as the conveyorunitandrobotic armunit.
All other units are works dependinguponthedirectiongiven
by the control unit.
Conveyor unit: The main job of this unit is to move the
object form other place to sensor unit, when the object
comes to the sensor unit the conveyor has to stop with the
help of sensor unit.
Sensor unit: The purpose this unit is to informs the arriving
of the object on the conveyor with the help of IR sensor and
determines the colour of the object with the help of thecolor
sensor and send these signals to the control unit for further
operation.
Robotic arm unit: This unit has to work according to the
direction given by the control unit for the picking and
placing of the object from the conveyor unit to the other
place which are located for the different colors.
2. DESIGN
In the process of designing the module for our
requirements, first list out our requirements and for our
requirements chose the efficient components for our
requirement to be fulfilled. Those components should be
connected together in a different way to work accordinglyto
our method. The connection between all those components
in a systematic manner is called block diagram. And the
block diagram of our design is shown below
2.1 BLOCK DIAGRAM
In the working process it has two different area of
work one is for working with the coloured objects and
another is for controlling the first area. And those are
2.1.1 ROBOTIC AREA
Fig 2.1: Block diagram of the robotic area.
The conveyor motors receives the power form the
power supply. The one pulley conveyor belt, with a circular
loop of materials on the conveyor belt that rotates about
them. Forward movement of the belt brings the materials
nears the sensor unit, when materials sensed by the sensors
the conveyor belts stops for the identification of the color of
the material with the help of the color sensor, thenthesignal
of the particular material color is fed to the control unit for
further operation, then the control unitsendthesignal tothe
robotic arm that picks the material and place the material in
the prescribed area, after placing the material the arm ofthe
robot is comeback to the normal place and waiting for the
next material to arrive. Then the controller start the
conveyor to bring the next material to the sensor unit and
the process continuous as explained in above in this page.

2.1.2 CONTROL ROOM AREA
Fig 2.2: Block diagram of the control room unit.
This block is the main block for working out or
controlling the operation of the robotic area and this is
operated by a known user. It maintains record of the
objects in a systematic manner for our observation and
for future use.
2.1.3 WORKING PRINCIPLE
After material production, Materials will be kept on
conveyer, that conveyer will bring the materialsintothe
packing area. In packing area IR sensor is used to
detecting material arrival, conveyer will stop when
material arrives at the packing area andthecolorsensor
is used at packing area to sort out the materials based
on the color of the material. After identification of the
color of the material, the same coloured object is placed
in the prescribed bins, and those bins are kept at
packing junction. Here the picking and placing of the
material is done using the robotic arm.
The admin can change the Bin configuration from
central PC using zigbee technology. If admin needs
material count, he can take the counts from central
system and controls the action of the whole system in
the central station.
3. RESULTS AND CONCLUSION
3.1 RESULTS
This project is working automatically with the
commands that are receiving from the control unitsfor
the operations like,
Table 3.1: Commands used in the projects
These are the commands used for the initial setups for the
project to work.
And there are the 3 operational modes
Mode-01
Mode-02
Mode-03
The mode tells the controllers to place the different
color objects in the prescribed place, and the place location
information is done by selecting the any one of these 3
modes.
In Mode-01
Table 3.2: Mode-01 information
In Mode-02

In Mode-03
The design of the system tells the robotic armto rotatein the
3 different angles.
By considering, the initial position of the robotic arm.
Table 3.5: Arm rotational directions
Fig 3.1: Project module
3.2 CONCLUSION
This project has been effectively designedtohandle
the required task. It can identify the specific color of the
object and grab it and place it in a required area as the user
wants with the help of RGB color sensor by sensing the color
of the object.
The two main tasks performed by the sensing section.
 Detection of objects.
 Recognition of color.
This system is fully controlled by the control unit and
capable of picking objects and places it to the respective
area. This cost effective device was designedbyusingsimple
concept to achieve the constant and reliable tasks without
the error from humans. This sorting device is very much
useful in production areas and different types of household
activities.
Thus the robot with pick and place automation with color
detection and distinction property is achieved successfully.
The system could be used in industries for picking and
placing objects efficiently and also for surveillance. The
interfacing of all the components on a single board, the
system could be made compactreducingthesizeandmaking
it more compact.
REFERENCES
[1] Yeow Khang Yung, „‟Color Sorting System with Robot
Arm‟‟ Faculty of Electronic and Computer Engineering
University Technical Malaysia Melaka, (2011).
[2] M. C. Mulder, S. R. Malladi, “A minimum effort control
application for Cooperating sensor driven intelligent
multi-jointed robotic arm,”Proceedingsofthe30thIEEE
Conference on Decision and Control, vol. 2, pp. 1573–
1578, 1991.
[3] GoldyKatal, Saahil Gupta, ShitijKakkar,”Design And
Operation Of Synchronized Robotic Arm”, International
Journal of Research in Engineering and Technology,
Volume: 02 Issue: 08, Aug-2013.
[4] Aji Joy“Object Sorting Robotic Arm Based on Colour
Sensing”Assistant Professor, Department of Electronics
and Communication Engineering, Mar Athanasius
College of Engineering, Kothamangalam, Kerala, India
[5] Roland Szabo, Ioan Lie” Automated Colored Object
Sorting Application for Robotic Arms” Applied
ElectronicsDepartmentFac.ofElectronicsandTelecom.,
“Politehnica” Un.Timisoara, Romania.
[6] Jegede Olawale, Awodele Oludele, Ajayi Ayodele and
Ndong Miko Alejandro “Development of a
Microcontroller Based Robotic Arm” Proceedings of the
2007 Computer Science and IT Education Conference.
[7] Uzma Amin1, Ghulam Ahmad2, Nudrat Liaqat3, Manzar
Ahmed4 , Sumbal Zahoor5” Detection & Distinction of
Colors using Color Sorting Robotic Arm in a Pick & Place
Mechanism” University of South Asia, Electrical
Engineering Department, 5-KM Raiwind Road Loahore,
Pakistan.
[8] Nikesh. R.Vange1, Atul. V.Nar2, Dhananjay. B.Surve3,
Anita. P.Trimukhe4, Manisha. M.Patil5, Rajesh. A.Patil6
“Pic-O-Place Robotic Arm Object Sorting Robotic Arm
Based on Color Sensing Mechanism”
[9] Dhanoj M1 , Reshma K V2 , Sheeba V3 ,Marymol P4
Assistant Professor, E&I Department, VJEC, Chemperi
Kerala, India1,2,3,4 “Color Sensor Based ObjectsSorting
Robot Using Embedded System”

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Colour sensor based object sorting robot @1000KV Technologies 9030844877