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Sensors 2017, 17(12), 2817;

Monitoring Traffic Information with a Developed Acceleration Sensing Node

National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083, China
Joint USTB-Virginia Tech Lab on Multifunctional Materials, USTB, Beijing 100083, China & Virginia Tech, Blacksburg, VA 24061, USA
Author to whom correspondence should be addressed.
Received: 16 October 2017 / Revised: 18 November 2017 / Accepted: 30 November 2017 / Published: 5 December 2017
(This article belongs to the Special Issue Sensor Networks for Smart Roads)
PDF [5533 KB, uploaded 5 December 2017]


In this paper, an acceleration sensing node for pavement vibration was developed to monitor traffic information, including vehicle speed, vehicle types, and traffic flow, where a hardware design with low energy consumption and node encapsulation could be accomplished. The service performance of the sensing node was evaluated, by methods including waterproof test, compression test, sensing performance analysis, and comparison test. The results demonstrate that the sensing node is low in energy consumption, high in strength, IPX8 waterproof, and high in sensitivity and resolution. These characteristics can be applied to practical road environments. Two sensing nodes were spaced apart in the direction of travelling. In the experiment, three types of vehicles passed by the monitoring points at several different speeds and values of d (the distance between the sensor and the nearest tire center line). Based on cross-correlation with kernel pre-smoothing, a calculation method was applied to process the raw data. New algorithms for traffic flow, speed, and axle length were proposed. Finally, the effects of vehicle speed, vehicle weight, and d value on acceleration amplitude were statistically evaluated. It was found that the acceleration sensing node can be used for traffic flow, vehicle speed, and other types of monitoring. View Full-Text
Keywords: traffic information monitoring; low energy consumption; acceleration sensing node; pavement vibration traffic information monitoring; low energy consumption; acceleration sensing node; pavement vibration

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Ye, Z.; Wang, L.; Xu, W.; Gao, Z.; Yan, G. Monitoring Traffic Information with a Developed Acceleration Sensing Node. Sensors 2017, 17, 2817.

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