04-03-2011, 12:57 PM
Presented By:
R.VAMSHIKRISHNA
N.CHAITANYA
S.PRADEEP
final.ppt (Size: 3.26 MB / Downloads: 1,014)
TRAFFIC LIGHT PRIORITYCONTROL FOR EMERGENCY VEHICLE
INTRODUCTION
“ Giving high priority for the emergency vehicles in the traffic so that there is no wastage of time to cross the junction”
This project is mainly based on the transmission of the RFsignal between the emergency vehicle and the traffic controller
Components used
MICRO CONTROLLER
RF TRANSMITTER, RF RECEIVER
POWER SUPPLY 5V
DECODER, ENCODER
LED
Microprocessor Vs Microcontroller
Microprocessor:
• CPU is stand-alone, RAM, ROM, I/O, timer are separate
• Designer can decide on the amount of ROM, RAM, and I/O ports
• expensive
• versatility general-purpose
Microcontroller:
• CPU, RAM, ROM, I/O and timer are all on a single chip
• fix amount of on-chip RAM, ROM, I/O ports
• for applications in which cost, power and space are critical
• single-purpose
FEATURES
8K bytes in the system Programmable flash memory
Fully static operation 0hz to 24Mhz
256*8 bit internal RAM
RF TRANSMITTER
Modulation ASK
Operating voltage: 2-12v.
RF RECEIVER
• Modulation ASK
• SUPPLY VOLTAGE :3.3-6VDC
• OUTPUT: digital and linear