A cricket bowling machine was designed which can provide support to the batsmen to develop their batting skill. The machine will be capable of generating different patterns of bowling.

1. CRICKET BOWLING
MACHINE
Submitted by:
ABHINAV JOSE(UR12EE003)
PRAVEEN PERUMAL G(UR12EE101)
ROHIT K ANIL(UR12EE112)
Guided by:
Dr. J. JAYAKUMAR
ASSISTANT PROFESSOR
EEE

2. OBJECTIVE
▪To develop a cost effective (economic) and compact
cricket bowling machine.
▪To provide provision for using sping, hard ball and rubber ball.
▪To provide provision for using various pattern of bowling style
such as straight, outswing, inswing, offbreak, leg break.

3. BLOCK DIAGRAM
MOTOR
A
MOTOR
B
BALL
SPEED CONTROL
A
SPEED CONTROL
B
LCD
MICROCONTROLLER

4. COMPONENTS USED
• Induction Motors
[2500rpm, 0.35HP,
0.5amp]
• Trolley Wheels
[diameter=21cm]
• Electronic Regulators
• Ball Bearing
• Antifriction Bearing
• Sleeve Bearing
• Flange Bolts
• Screws
• Metal Frame
• Proximity Sensor
• AT89S52
Microcontroller
• IC 7805
• LED
• LCD 16×2

5. FEATURES
• Hard and Cricket Balls Usage
• Angular Box
• Ready Indicator
• Speed Indication using Sports Speed
Gun App
• Availability of Different Bowling
Patterns

6. DESIGN CHARACTERISTICS
MOTOR
❖The type of motor used induction
motor
❖Speed=2500rpm
❖Current=0.5amp
❖Torque=1.5kg
❖Space between two motor=6.8cm
WHEEL
❖The wheel used is trolley wheel.
❖Weight of the wheel =850g
❖Diameter of the wheel=20cm
VALVE
❖Diameter of the valve =7cm
❖Diameter of the ball=6.8cm
❖Total height of the machine =1m

7. SELECTION OF WHEEL
• We have undergone testing different types of wheels
such as Auto wheel, Scooter wheel and Trolley
wheel.
• After testing, we obtained good efficiency from
trolley wheel compared to other wheels.
• Also, it provides more friction, less in size and
weight.

8. MECHANICALASPECTS
❖Wheels are mounted on base
for axial rotation in a common
plane.
❖The gap between the wheels
should be slightly less than the
diameter of ball to be thrown.
❖The speed of each wheel can
be adjustable independently.
❖This machine transfers the
kinetic energy to the ball by
frictional gripping of the ball
between two rotating wheels.
❖The adjustments of relative
speeds and rotation of plane of
the wheels gives wide
variations in the speed and
swing of the ball.

9. ❖POWER SUPPLY UNIT
❖MICROCONTROLLER UNIT
❖LCD DISPLAY
❖PROXIMITY SENSOR
SPEED CONTROL

10. POWER SUPPLY UNIT
Power supply unit consist of following units :
➢ Step down transformer
➢ Bridge Rectifier unit
➢ Input filter
➢ Regulator unit
➢ Output filter

11. CIRCUIT DIAGRAM

12. MICROCONTROLLER UNIT
FEATURES :
• Flash memory
• 4.0V to 5.5V Operation
Range
• Fully Static Operation: 0 Hz
to 33 MHz
• 256 x 8-bit Internal RAM
• Dual Data Pointer
• Fast Programming Time
• 4e
AT89S52 Microcontroller

13. PIN DESCRIPTION
Pin Diagram of AT89S52 Microcontroller

14. • Liquid Crystal cell Displays (LCDs) can
display numeric and alphanumeric
characters in dot, matrix and segment
displays.
• LCD display is used to display the speed of
each motor
• LCD used is 16 X 2.
• It will display the 16 characters in two
rows.
LCD DISPLAY

15. 1 - VSS - GROUND
2 - VDD-Supply voltage
3 - V0-Input voltage
4 - RS-Instruction code
5 - R/W- Read or write
6 - E Chip Enable
7 - DB0-Data Bits8
8 - DB1
9 - DB2
10 - DB3
11 - DB4
12 - DB5
13 - DB6
14 - DB7
15 - BLA - Back light anode
16 - BLK - back light cathode

16. PROXIMITY SENSOR
• The wheel type metal rod is fixed
in the motor shaft.
• The proximity sensor is placed
near the shaft.
• When the shaft is rotating, the
metal rod is crossed the
proximity sensors sequentially.
• So the sensor gives the pulse to
the microcontroller.
• Now the microcontroller counts
the pulse.
• By using this pulse count we can
find revolution per minute which
is equal to speed of the
microcontroller.

17. Speed Measurement Circuit Using Proximity Sensor

18. VIEW OF PROJECT

20. WORK DONE
❖Execution of various bowling styles
❖Measurement of speed of the ball using Sports
Speed Gun app.
❖Case study of different styles of bowling such as
straight, outswing, inswing, offbreak, leg break
❖Provision to use different types of balls for the
machine to bowl.

21. FUTURE WORKS
• Introducing of different bowler’s bowling
technology using neural technology
• Usage of obstacle sensor for safety
measures of people crossing near the
bowling machine while in operating mode

22. REFERENCES
• S .S. Roy, A. Maapatra, N. P. Mukherjee, U Datta, U. Nandy, S. Karmakar, A.
Chatterjee.(2005) “Design of an Improved Cricket Ball Throwing Machine”
• Abhijit Mahapatra, Avik Chatterjee and Shibendu Shekhar Roy (2010)
“Modelling and Simulation of Cricket Bowling Machine”, International J. of
Recent Trends in Engineering and Technology, Vol. 3
• Akshay R. Varhade, HrushikeshV. Tiwari and Pratik D. Patangrao
(2013)“Cricket Bowling Machine” , International Journal of Engineering
Research & Technology (IJERT)
• RAZA Ali, DIEGEL Olaf and ARIF Khalid Mahmood (2014) “Robowler:
Design and development of a cricket bowling machine ensuring ball seam
position” ,Springer
• QUT Digital Repository(http://eprints.qut.edu.au/)
• AT89S52 - Atmel (http://www.atmel.com/images/doc1919.pdf/)
• Leverage Cricket Bowling Machine
(http://www..bowlingmachine.co.in/pro_crikcet_bowling_machines/)