US Patent 9478071 Anti fare evasion system

A system for monitoring passengers on a vehicle includes one or more detectors for detecting passenger data including one or more passenger identification properties. A computer system receives data from the detectors and uniquely identifies each passenger based on the one or more passenger identification properties. A device receives fare data indicative of whether a passenger has paid the correct fare, and uses the fare data, passenger identity and passenger data from the computer system to indicate which passengers have paid the correct fare.