Sensors 2014, 14(8), 14050-14069; doi:10.3390/s140814050

Analysis of Vehicle Detection with WSN-Based Ultrasonic Sensors

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Received: 11 June 2014; in revised form: 22 July 2014 / Accepted: 24 July 2014 / Published: 4 August 2014
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Abstract: Existing traffic information acquisition systems suffer from high cost and low scalability. To address these problems, the application of wireless sensor networks (WSNs) has been studied, as WSN-based systems are highly scalable and have a low cost of installing and replacing the systems. Magnetic, acoustic and accelerometer sensors have been considered for WSN-based traffic surveillance, but the use of ultrasonic sensors has not been studied. The limitations of WSN-based systems make it necessary to employ power saving methods and vehicle detection algorithms with low computational complexity. In this paper, we model and analyze optimal power saving methodologies for an ultrasonic sensor and present a computationally-efficient vehicle detection algorithm using ultrasonic data. The proposed methodologies are implemented and evaluated with a tiny microprocessor on real roads. The evaluation results show that the low computational complexity of our algorithm does not compromise the accuracy of vehicle detection.
Keywords: power saving; low computational complexity; ultrasonic sensors; traffic information acquisition systems; wireless sensor networks
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MDPI and ACS Style

Jo, Y.; Jung, I. Analysis of Vehicle Detection with WSN-Based Ultrasonic Sensors. Sensors 2014, 14, 14050-14069.

AMA Style

Jo Y, Jung I. Analysis of Vehicle Detection with WSN-Based Ultrasonic Sensors. Sensors. 2014; 14(8):14050-14069.

Chicago/Turabian Style

Jo, Youngtae; Jung, Inbum. 2014. "Analysis of Vehicle Detection with WSN-Based Ultrasonic Sensors." Sensors 14, no. 8: 14050-14069.

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