The
project Time Measurement System for Athletics calculates the time without
actually using any mathematical calculations. This project uses the wireless
concept IR. IR has the advantages of fast communication at shorter distances.
IR
Transmitter and Receiver pair will be arranged at the destination point.
Whenever the race starts, a stop watch will be started. The IR transmitter and
receiver pair will be facing each other in such a way that the IR signal from
the IR transmitter will be received continuously by the IR receiver. This
output from the IR receiver will be given to the microcontroller.
The
microcontroller continuously monitors this output.
When
the race has been started, the stop clock will be started and as the athlete
tries to reach the destination, he/ she has to cross the IR pair at the
destination point. Thus, the IR signal will be interrupted when any one of the
athletes comes in between the IR pair and therefore the output of the IR
receiver changes. This change in the output will be detected by the
microcontroller and the stop clock will be stopped as soon as this change
occurs. The time taken will be displayed on LCD.
SOFTWARE
AND HARDWARE TOOLS:
Software
Tools:
- Keil compiler
- Orcad.
Hardware
Tools:
- Microcontroller AT89S52.
- IR sensor
- LCD.