The invention discloses a new energy automobile charging interface automatic positioning method, which comprises the following steps: S1, when an automobile is detected to be parked in a charging position, acquiring an image of an automobile front windshield containing a frame number external rectangle area by using a camera, and marking a frame number external rectangle in the image to obtain a frame number image; s2, obtaining pixel coordinate information of a frame number identifier according to the frame number image, and obtaining world coordinate information of the frame number identifier according to the pixel coordinate information of the frame number identifier; text information of a frame number is obtained through frame number image recognition, an automobile model is determined according to the recognized frame number text information, a coordinate transformation matrix between a frame number identifier and a charging interface is obtained according to the automobile model, and then world coordinate information of the charging interface is obtained. The invention further provides an automatic insertion and extraction positioning method for the new energy automobile charging gun, the positions of the charging interfaces of automobiles of different models can be accurately positioned, and automatic insertion and extraction of the charging gun are achieved.

    本发明公开了一种新能源汽车充电接口自动定位方法,包括如下步骤:S1:当检测到充电位内停放汽车后,利用摄像机采集汽车前挡玻璃包含车架号外接矩形区域的图像,并在图像内标注车架号外接矩形,得到车架号图像;S2:根据车架号图像得到车架号标识的像素坐标信息,并由车架号标识的像素坐标信息得到车架号标识的世界坐标信息;通过车架号图像识别得到车架号的文本信息,根据识别得到的车架号文本信息确定汽车型号,根据汽车型号得到车架号标识与充电接口之间的坐标变换矩阵,进而得到充电接口的世界坐标信息。本发明还提出了一种新能源汽车充电枪自动插拔定位方法,能够准确定位不同型号的汽车的充电接口位置,以实现充电枪的自动插拔。


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    Title :

    New energy automobile charging interface automatic positioning method and charging gun automatic plugging positioning method


    Additional title:

    新能源汽车充电接口自动定位方法和充电枪自动插拔定位方法


    Contributors:
    PAN ZEMIN (author) / CHEN CONG (author) / YAO HAO (author) / ZHU LIANGXIONG (author)

    Publication date :

    2023-07-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G06V



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