@article{ref1,
title="Acoustic detector of road vehicles based on sound intensity",
journal="Sensors (Basel)",
year="2021",
author="Szwoch, Grzegorz and Kotus, Józef",
volume="21",
number="23",
pages="e7781-e7781",
abstract="A method of detecting and counting road vehicles using an acoustic sensor placed by the road is presented. The sensor measures sound intensity in two directions: parallel and perpendicular to the road. The sound intensity analysis performs acoustic event detection. A normalized position of the sound source is tracked and used to determine if the detected event is related to a moving vehicle and to establish the direction of movement. The algorithm was tested on a continuous 24-h recording made in real-world conditions. The overall results were: recall 0.95, precision 0.95, F-score 0.95. In the analysis of one-hour slots, the worst results obtained in dense traffic were: recall 0.9, precision 0.93, F-score 0.91. The proposed method is intended for application in a network of traffic monitoring sensors, such as a smart city system. Its advantages include using a small, low cost and passive sensor, low algorithm complexity, and satisfactory detection accuracy.<p /> <p>Language: en</p>",
language="en",
issn="1424-8220",
doi="10.3390/s21237781",
url="http://dx.doi.org/10.3390/s21237781"
}