Design and Development of Bluetooth Based Vehicle Scanner for Real Time Traffic Control

Measurement of traffic volume and control of traffic signal timing using various technologies like inductive loops, pressure plates or tubes and vision-based systems are common. Many of these sensing technologies are non-intrusive. In this paper, the Author’s present an exploration of the Bluetooth devices and scanners and attempt to fabricate one such unit and the results of the deployment of the prototype in the field. The prototype Bluetooth vehicle scanner is based on an Arduino Mega microcontroller. It consists of a Bluetooth module and a Wi-Fi module interfaced with a microcontroller. Based on re-identification, filter rules and distance between the scanners, the average speed is calculated and conveyed to the traffic signal controller. The traffic signal controller determines the green time offset required for the main corridor under consideration within the set cycle time. The prototype system has shown promising results and can be used effectively in the existing traffic signal control system.