The invention provides a vehicle speed monitoring method based on an automobile data recorder. The method is executed through an automobile data recorder, wherein the automobile data recorder comprises a storage module, a road selection switch, a camera, a central processing unit and a display unit. The vehicle speed monitoring method based on the automobile data recorder comprises the following steps: a,storing road information with lane boundaries in a storage module in advance, wherein the road information comprises road types and the minimum distance D in the boundaries of all types of roads; b, selecting the type of the current driving road through a road selection switch; c, capturing an image shot by a camera through a central processing unit, obtaining the number N of times that dotted lines appear in the image in unit time T, calling the minimum distance D of the current driving road in the storage module according to V = (D * N)/T, and calculating the current driving speed V of the vehicle; and d, displaying the current running speed V of the vehicle through the display unit.

    本发明提供一种基于行车记录仪的车速监测方法,其通过一行车记录仪执行,该行车记录仪包括一储存模块、一道路选择开关、一摄像头、一中央处理器以及一显示单元,该基于行车记录仪的车速监测方法包含以下步骤:a.预先在该储存模块内储存具有车道分界线的道路信息,包括道路类型以及各类型道路的分界线中最小间距D;b.通过该道路选择开关选择目前行驶的道路类型;c.通过该中央处理器截取该摄像头拍摄的影像并获得单位时间T内该影像中虚线出现的次数N,根据V=(D*N)/T,调取该储存模块内的目前行驶的道路的最小间距D,计算车辆当前的行驶速度V;以及d.通过该显示单元显示该车辆当前的行驶速度V。


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    Title :

    Vehicle speed monitoring method based on automobile data recorder


    Additional title:

    基于行车记录仪的车速监测方法


    Contributors:
    DAI HUAMIN (author) / YU LIYA (author)

    Publication date :

    2021-11-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte



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