17-12-2012, 06:26 PM
RF based bus tracking system using microcontroller
RF based bus tracking system using microcontroller.docx (Size: 395.21 KB / Downloads: 28)
Introduction
Radio frequency (RF) is a rate of oscillation in the range of about 3 kHz to 300 GHz, which corresponds to the frequency of radio waves, and the alternating currents which carry radio signals. RF usually refers to electrical rather than mechanical oscillations, although mechanical RF systems do exist.Although radio frequency is a rate of oscillation, the term "radio frequency" or its acronym "RF" are also used as a synonym for radio – i.e. to describe the use of wirelesscommunication, as opposed to communication via electric wires.In order to receive radio signals an antenna must be used. However, since the antenna will pick up thousands of radio signals at a time, a radio tuner is necessary to tune in to a particular frequency (or frequency range).
RESULTS
We are successfully transmitting the data from transmitter to the receiver which can be observe via LED but we are facing problem in the interfacing of micro controller with the LCD. That’s why we cannot observe the output on LCD
APPLICATIONS
Recently there has been a tremendous increase of the use of bus tracking which we see in our daily life. The best example of this is the BEST Buses.
CONCLUSION
The use of bus tracking is seen is public buses. Due to use of the bus tracking which is an electronic technology has helped people to know the exact location of the area where they are, due to which they get a proper idea and the judgement of time to reach the destination.