Q: How does the counting of persons happen?
A: Using bidirectional (entry / exit) detection by IR and TSOP, counting of persons takes place.
Q: Which microcontroller is used in this project?
A: A 40 pin 8051 microcontroller is used in this project.
Q: Is it possible to increase the maximum count limit?
A: Yes, on demand, the maximum count limit can be increased.
Q: What is TSOP?
A: TSOP is an IC which acts as a receiver for receiving IR signal.
Q: What is IR emitting device?
A: Device emitting Infra red rays, which cannot be seen by human eyes is a IR emitting device.
Q: What is the distance range supported for IR-TSOP?
A: Distance range supported for IR-TSOP is 2 feet
Q: Can this project be implemented in industries?
A: Yes, it can be used to sense objects/products in an industry.
Q: Is it possible touse this system as a security system, and can the lamp be replaced with any alarm?
A: Yes, it can be used as a security system and the lamp can be replaced with an alarm.
Q: Is this system useful at offices or residences?
A: Yes, this system is useful at offices or residences.
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: What to do when the lamp fails and what is the maximum lamp rating that can be used?
A: If the lamp fails one can use any lamp or bulb which is used in homes up to 100W. We suggest you to go for low watt bulbs.