INTRODUCTION
The vehicle system control
using telemetry application is all about using a radio wave to control and
activate certain events such as the car horn, car head light, car ignition
(starter) and car air conditioner etc.
This is achieved by using various tone frequencies by using
an encoder via a radio frequency transmitter (low power) that provides the
carrier frequency for these tones.
At the receiver end demultiplexing and decoding of these
tone takes place via a detector/receiver stage. The output of the encoder is
used to turn on a relay switch, which inturn connects power source to either
the car engine, horn or lamp etc.
The application of thus project include space exploration,
where lunar vehicles are controlled from earth station by using satellite as
the medium of transfer of signals.
In the military warfare, unmanned air crafts, missiles and
even armoured tanks are controlled these days by using the pinaple of telemetry
applications. Other areas include GSM, where a subscriber has the total control
of his telephone calls conversation through the BTS (Base Transmission or
Transceiver Station). Its application are so vast and large that they are too
numerous to mention.
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