DISH POSITIONING CONTROL BY IR
REMOTE
ABSTRACT
The project is designed
to develop a dish positioning system which can be operated by using a conventional
TV remote. The main application of using a dish is to receive signal from satellites
and other broadcasting sources. In order to position the dish to the exact
angle to receive the maximum signal of a particular frequency, it needs to be adjusted
manually.
In order to
overcome the difficulty of adjusting manually, this proposed system helps in adjusting
the position of the dish through a simple TV Remote. This system consists of
two motors that enable the dish to move both in horizontal and vertical
direction. The TV remote acts as a transmitter whose data is received by an IR
receiver which is interfaced to a microcontroller of 8051 family. The TV remote
sends coded data to the receiver whose output is then sent to the microcontroller.
The microcontroller sends control signals to the motors through an interface IC
also known as motor driver IC. The code followed by the TV remote is a standard
RC5 code. This code is used in the program to recognize the input code from the
TV remote for the controller to develop appropriate output signal for the motor
driver IC.
Further the
project can be enhanced by using RF control instead of IR which has got line of
sight communication restrictions.
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DIAGRAM
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