RFID Speed Monitoring System

The increasing number of speeding related car accidents call for stricter measures to be taken. Radio Frequency Identification (RFID) presents the best ability to identify objects in a certain range. A system was created to approximate the speed of a vehicle travelling between two RFID readers. RFID readers will be placed at known, predetermined distances from each other. The passing vehicle carrying an RFID tag will broadcast its unique number to the reader which will log the exact time this vehicle has passed. By measuring the time the vehicle needed to pass two consecutive readers, the average speed can be calculated. Mean value theorem says that the vehicle´s speed must be at some point equal to the average speed calculated. Speeding ticket can be issued immediately if the calculated speed exceeds the speed limit. This technique provides advantages such as, low cost, easy integration, and accurate speed measurement.