Electrical engineer. RFID Experience

We are interested in learning more about your experience with sensor fusion and detecting direction of travel for a mass transit application Systems needs to detect people walking through gated doorways with an RFID tag (card) and determine if they’re authorized to enter. The system must also determine the order in which people enter, 1st, 2nd etc. so that they can correlate the order of entry back to a specific RFID tag if multiple people are trying to enter at the same time.