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Sensors 2017, 17(3), 633; doi:10.3390/s17030633

A Vehicle Steering Recognition System Based on Low-Cost Smartphone Sensors

School of Information Engineering, Wuhan University of Technology, Wuhan 430070, China
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Author to whom correspondence should be addressed.
Academic Editor: Paolo Bellavista
Received: 10 January 2017 / Revised: 11 March 2017 / Accepted: 16 March 2017 / Published: 20 March 2017

Abstract

Recognizing how a vehicle is steered and then alerting drivers in real time is of utmost importance to the vehicle and driver’s safety, since fatal accidents are often caused by dangerous vehicle maneuvers, such as rapid turns, fast lane-changes, etc. Existing solutions using video or in-vehicle sensors have been employed to identify dangerous vehicle maneuvers, but these methods are subject to the effects of the environmental elements or the hardware is very costly. In the mobile computing era, smartphones have become key tools to develop innovative mobile context-aware systems. In this paper, we present a recognition system for dangerous vehicle steering based on the low-cost sensors found in a smartphone: i.e., the gyroscope and the accelerometer. To identify vehicle steering maneuvers, we focus on the vehicle’s angular velocity, which is characterized by gyroscope data from a smartphone mounted in the vehicle. Three steering maneuvers including turns, lane-changes and U-turns are defined, and a vehicle angular velocity matching algorithm based on Fast Dynamic Time Warping (FastDTW) is adopted to recognize the vehicle steering. The results of extensive experiments show that the average accuracy rate of the presented recognition reaches 95%, which implies that the proposed smartphone-based method is suitable for recognizing dangerous vehicle steering maneuvers. View Full-Text
Keywords: vehicle steering recognition; sensors; smartphone; context-aware system vehicle steering recognition; sensors; smartphone; context-aware system
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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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Liu, X.; Mei, H.; Lu, H.; Kuang, H.; Ma, X. A Vehicle Steering Recognition System Based on Low-Cost Smartphone Sensors. Sensors 2017, 17, 633.

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