Magneto-Resistive Sensor Nodes for Vehicle Traffic Detection

This paper presents the use of magneto-resistive sensor for the detection of vehicle traffic. The developed traffic detection system provides an approximation of the number of vehicles per hour in two-lane roads. Based on the quantity of vehicles in the road, traffic status is classified as light, moderate or heavy. A traffic volume of less than 420 vehicles/hour is considered as a light traffic, between 420 and 1200 vehicles/hour as a moderate traffic, and greater than 1201 vehicles/hour as heavy traffic. The traffic detection in this study uses a threshold algorithm with peak counting. Overall, the study shows that magneto-resistive sensor can be used as a tool in determining traffic volume condition with a percent accuracy of 91.67%.