Q: What is the range of RF?
A: RF range is about 50 meters.
Q: What is remote override in this project?
A: Remote override in this project is wirelessly overriding the running traffic signal system.
Q: How the remote override occurs?
A: By using RF communication from vehicle to the signal control computer, remote overriding is achieved.
Q: In which case is remote override used?
A: Remote override is used to allow emergency vehicles like ambulances; fire brigades etc a quick passage through the traffic.
Q: Is it possible to increase the distance and implement it directly on the road?
A: Yes, increasing the distance and direct implementation is possible with modification at user end.
Q: What is the role of microcontroller in this project?
A: The microcontroller is used to develop a dynamic timing
Q: How the traffic density is automatically sensed?
A: Traffic is automatically sensed by IR sensor arrangement
Q: What is this blue and white color device used for?
A: The blue and white color device is the preset used as a variable resistor.
Q: Which microcontroller is used in this project?
A: An 8051 family 40 pin microcontroller is used in this project.
Q: What is the formula for calculating smoothing capacitor value?
A: There is some approximated formula .Peak to peak ripple voltage = Load current in amps / (2*line frequency in hertz *capacitance in farads). But as rule of thumb for 1 A current 1000uF is best. Thus it is load dependent.
Q: Can we develop a traffic accident information system?
A: If a number of vehicles are standing on a road without moving for preset time duration an alarm will be triggered.