Abstract
The purpose of our applied research project is to develop an autonomous road sign with built-in radar devices of our design. In this paper, we show that it is possible to calibrate the acoustic vector sensor in such a way that it can be used to measure traffic volume and to count the vehicles involved in the traffic through the analysis of the noise emitted by them. Signals obtained from a Doppler radar are used as a reference source. Although the acoustical vector sensor (AVS), being the embodiment of acoustic radar, has a lower accuracy than Doppler radar in vehicle counting and it is not able to measure the vehicle speed with the same precision, it has some advantages over the Doppler sensor. Namely, it does not emit any signals, it is not susceptible to electromagnetic interferences and it allows for further analysis of audio signals, such as assessment of the road surface state (e.g., wet/dry). The acoustic radar we developed is a new proposition of the acoustic method for road traffic monitoring. In addition, our research allowed a comparison of the efficiency of both methods, i.e., microwave and acoustic ones. [Project No. POIR.04.01.04-0089/16 entitled: “INZNAK – Intelligent road signs with V2X interface for adaptive traffic controlling” is financed by the Polish National Centre for Research and Development from under the EU Operational Programme Innovative Economy.]
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
