基于行程时间的人车特征动态辨识方法

Dynamic identification method of driver and vehicle features based on travel time

实现对驾驶倾向性、汽车类型的动态识别对构建以人为中心的汽车安全驾驶辅助系统具有重要意义。本文以驾驶员隐私保护为基础,利用车载全球定位系统(GPS)捕获的行程时间,建立基于Bayes决策树的人车特征动态辨识模型,识别汽车不同类型及其驾驶员倾向性。通过设计实车和虚拟驾驶实验分别验证在不同渗透率条件下的人车特征辨识效果,验证结果表明,本文建立的人车特征辨识模型准确率在80%以上,明显优于传统决策树模型;通过设计仿真实验验证了考虑驾驶倾向性的微观仿真和实际情况具有较好相合性,仿真验证结果间接证明本文研究成果的合理性。

It is of great significance for the people-centered safe driving assistant system to realize the dynamic identification of driver’s propensity and vehicle type. Considering the privacy protection, a dynamic identification model for driver and vehicle characteristics was established using Bayesian decision tree. The travel time obtained by global position system（GPS） data when cars went through an intersection was used to identify the vehicle type and driver’s propensity in the model. The identification effectiveness of human-vehicle characteristics under different permeability conditions was verified by real and virtual driving experiments. The results show that the accuracy rate of the established recognition model was above 80% and the established model was significantly better than the traditional decision tree model. The good consistency between the microscopic simulation considering driving tendency and the actual situation was verified by simulation experiment, and the rationality of the research results was proved indirectly.