Acoustic Detector of Road Vehicles Based on Sound Intensity
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...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-11-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/21/23/7781 |
| _version_ | 1797507246019575808 |
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| author | Grzegorz Szwoch Józef Kotus |
| author_facet | Grzegorz Szwoch Józef Kotus |
| author_sort | Grzegorz Szwoch |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-10T04:45:49Z |
| format | Article |
| id | doaj.art-cd12ff9feadd464a909410ccac3ca6f4 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T04:45:49Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-cd12ff9feadd464a909410ccac3ca6f42023-11-23T02:59:05ZengMDPI AGSensors1424-82202021-11-012123778110.3390/s21237781Acoustic Detector of Road Vehicles Based on Sound IntensityGrzegorz Szwoch0Józef Kotus1Department of Multimedia Systems, Faculty of Electronics, Telecommunication and Informatics, Gdańsk University of Technology, 80-233 Gdańsk, PolandDepartment of Multimedia Systems, Faculty of Electronics, Telecommunication and Informatics, Gdańsk University of Technology, 80-233 Gdańsk, PolandA 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.https://www.mdpi.com/1424-8220/21/23/7781vehicle detectiontraffic monitoringsound intensityacoustic sensors |
| spellingShingle | Grzegorz Szwoch Józef Kotus Acoustic Detector of Road Vehicles Based on Sound Intensity Sensors vehicle detection traffic monitoring sound intensity acoustic sensors |
| title | Acoustic Detector of Road Vehicles Based on Sound Intensity |
| title_full | Acoustic Detector of Road Vehicles Based on Sound Intensity |
| title_fullStr | Acoustic Detector of Road Vehicles Based on Sound Intensity |
| title_full_unstemmed | Acoustic Detector of Road Vehicles Based on Sound Intensity |
| title_short | Acoustic Detector of Road Vehicles Based on Sound Intensity |
| title_sort | acoustic detector of road vehicles based on sound intensity |
| topic | vehicle detection traffic monitoring sound intensity acoustic sensors |
| url | https://www.mdpi.com/1424-8220/21/23/7781 |
| work_keys_str_mv | AT grzegorzszwoch acousticdetectorofroadvehiclesbasedonsoundintensity AT jozefkotus acousticdetectorofroadvehiclesbasedonsoundintensity |