Access control(AC) is an act of restricting access to an area to selected individuals and vehicles. The act of accessing involves entering an area for a specific purpose and only authorized persons are allowed to access a restricted area. It makes a security system that filters the traffic entering into a given place like a building and parking. AC is widely used in offices and homes. Biometric access control is a good example of office access where employees get access to their offices through the biometric signs like fingerprint and face scanner. Private homes have video door phones for access control.