用低成本传感器识别驾驶风格,提升长途驾驶安全与效率。
Low-Cost System for Automatic Recognition of Driving Pattern in Assessing Interurban Mobility using Geo-Information
- 通过车速、位置、时间及三轴转向速度数据,结合神经网络识别驾驶模式。
- 引入地理信息后分类准确率提升至83%,两类型分类达92%。
- 适合交通管理、车载安全系统开发人员参考,部署成本低。
城市与城际出行主要依赖汽车,但常面临拥堵与事故问题。虽新车多配备驾驶评估系统,但多数在用车仍无此功能。本文提出一种低成本驾驶风格识别系统,由两个物理传感器连接带显示屏和扬声器的设备节点构成,内置人工神经网络(ANN)实时分析传感器数据并识别驾驶行为。一旦检测到异常驾驶模式,扬声器将发出警告。原型在常规城际道路测试,涵盖三种驾驶风格,使用采集数据训练与验证模型。结果表明,融合速度、经纬度、时间及三轴转向速度时,平均识别准确率达83%;若仅区分正常与激进两种风格,准确率可达92%。引入地理信息与时间数据是本研究核心创新,使分类准确率提升13%。
原文摘要 · Abstract (English)
Mobility in urban and interurban areas, mainly by cars, is a day-to-day activity of many people. However, some of its main drawbacks are traffic jams and accidents. Newly made vehicles have pre-installed driving evaluation systems, which can prevent accidents. However, most cars on our roads do not have driver assessment systems. In this paper, we propose an approach for recognising driving styles and enabling drivers to reach safer and more efficient driving. The system consists of two physical sensors connected to a device node with a display and a speaker. An artificial neural network (ANN) is included in the node, which analyses the data from the sensors, and then recognises the driving style. When an abnormal driving pattern is detected, the speaker will play a warning message. The prototype was assembled and tested using an interurban road, in particular on a conventional road with three driving styles. The gathered data were used to train and validate the ANN. Results, in terms of accuracy, indicate that better accuracy is obtained when the velocity, position (latitude and longitude), time, and turning speed for the 3-axis are used, offering an average accuracy of 83%. If the classification is performed considering just two driving styles, normal and aggressive, then the accuracy reaches 92%. When the geo-information and time data are included, the main novelty of this paper, the classification accuracy is improved by 13%.
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