System for Vehicles Classification and Emergency Vehicles Detection

The rapid increase in the number of cars in cities puts increased demands on transport infrastructure. The main tools that allow existing transport infrastructure to cope with this situation are: adaptive control of intersections, real-time information system on availability of roads and parking support system. All of these systems need information about the current state of traffic conditions. Magnetometers can be successfully used to measure all the parameters needed to monitor traffic: count, speed, classification, occupancy and presence. In this article we present a sensor equipped with magnetometer and microphone. Our sensor allows the detection of emergency vehicles based on the analysis of acoustic signals. First experiments with the sensor carried out in real world conditions are described and discussed.