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By using remote control we can reduce the complexity of positioning of antenna using Infrared means according to the strength of the signal.
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DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
By
K.LAXMI KANTH (08U51A0487)
G.NITHIN (08U51A0479)
K.N.DIVYA SREE (08U51A0486)
N.MANOJ (07U51A0460)
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
INTRODUCTION
Aim : To move the dish in the desired direction to receive the maximum signal.
Purpose : To reduce the complexity in adjusting the position of dish.
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
BLOCK DIAGRAM
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
HARDWARE COMPONENTS:
POWER SUPPLY
AT89S52 MCU
IR TRANSMITTER
TSOP (RECEIVER)
GEARED MOTOR
L293D MOTOR DRIVER IC
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
POWER SUPPLY230 V AC 50 Hz
5V DC
5v RegulatorBridge rectifier
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
IR TRANSMITTER(LED):
•Peak Wavelength 940 nm
•Spectral Bandwidth 45 nm
•Max Current: 100 mA
•Forward Voltage 1.4V-1.5V
•Power Dissipation 150 mW
•Breakdown Voltage 5V
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
TSOP 1738 PIN DIAGRAM
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
Photo detector and preamplifier in one package
TTL and CMOS compatibility
Output active low
Low power consumption.
TSOP 1738 FEATURES :
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
TSOP SPECIFICATIONS:
•Supply Voltage: –0.3 to 6.0 V.
•Supply Current: 5 mA.
•Output Voltage: –0.3 to 6.0 V.
•Output Current: 5 mA.
•Operating Temperature Range: –25 to +85°C
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
RC-5 Protocol:
2 start bits,1 toggle bit,5 bit address and 6 bit command
Carrier frequency of 36kHz
Constant bit time of 1.778ms (64 cycles of 36 kHz)
Manufacturer Philips
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
Typical pulse train of RC-5 message
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
GEARED MOTOR:
Principle
Working
Applications
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
L293D MOTOR DRIVER IC:
Wide supply-voltage range: 4.5V to 36V
Separate input logic supply
Internal ESD protection
Output current 600 mA
It can drive two motors in both clockwise and anti-clockwise
direction
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
PIN DIAGRAM OF L293D
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
INTERFACING OF MOTOR WITH L293D :
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
MICROCONTROLLER(AT89S52)
• 4.0V to 5.5V Operating Range
• Fully Static Operation: 0 Hz to 33 MHz
• 256 x 8-bit Internal RAM
• 32 Programmable I/O Lines
• Three 16-bit Timer/Counters
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
Pin Configurations of AT89S52
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
SCHEMATIC DIAGRAM:
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
SOFTWARE:
•ASSEMBLY LANGUAGE
•KEIL MICRO VISION
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
Applications:
The position of dish is used in DTH were the signals are received directly from satellite.
The dish position control system is used on the top of cars where the media access signals.
The position of antenna is used in GPS tracking system.
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
Future scope: Positioning of dish can be implemented using RF means where the dish position can be adjusted very efficiently.
Using RF transmission the dish position can be controlled from a distance of 200meters.
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
Conclusion:
The position of the dish is controlled by using the IR means i.e., using remote control the position of dish is adjusted with the help of geared motors to get the maximum reception of signal.
DRK College of Engineering & Technology
DISH POSITIONING CONTROL BY GEARED MOTOR
Project- Seminar
Date: 19-APR-2012
Department of Electronics & Communication Engineering
THANK YOU