The invention discloses a graph construction method for describing driving behavior risk characteristics. The graph construction method comprises the steps of behavior pattern definition, wherein a driving behavior pattern is defined as acceleration change within a short period of time; data dimensionality reduction and coding: performing dimensionality reduction processing on the continuous data with the accelerated speed change, converting the continuous data into discrete data, and performing numerical coding on the discrete data; behavior pattern extraction: according to the behavior pattern definition, moving on the acceleration time sequence window to obtain a driving behavior pattern; and map drawing: drawing a driving behavior risk characteristic map according to the frequency of occurrence of the driving behavior mode. The obtained driving behavior risk characteristic spectrum can reveal the internal complex data structure relation of the driving behavior, the behavior is fragmented, the driving behavior risk characteristic spectrum can be used for displaying and depicting the risk behavior and can also be used for judging the abnormal behavior, and therefore the direct expression of the driving behavior change process is achieved.

    本发明公开了一种描述驾驶行为风险特征的图谱构建方法,包括行为模式定义:将驾驶行为模式定义为在一小段时间内的加速度变化;数据降维和编码:对加速度变化的连续数据进行将降维处理,使其转换为离散数据,并对其进行数值编码;行为模式提取:根据行为模式定义,在加速度时间序列窗口上移动以获取驾驶行为模式;图谱绘制:根据驾驶行为模式的出现频率绘制驾驶行为风险特征图谱。本发明得到的驾驶行为风险特征图谱可以揭示驾驶行为内部复杂数据结构关系,将行为碎片化,不仅能够用于风险行为的展示和刻画,还能够用于异常行为的判别,从而实现驾驶行为变化过程的直观表达。


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    Titel :

    Map construction method for describing driving behavior risk characteristics


    Weitere Titelangaben:

    一种描述驾驶行为风险特征的图谱构建方法


    Beteiligte:
    OU JUSHANG (Autor:in) / ZHAO XIAOHUA (Autor:in) / QI HANG (Autor:in) / YAO YING (Autor:in) / PENG CUISHAN (Autor:in) / LIU CHANG (Autor:in)

    Erscheinungsdatum :

    23.02.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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