The invention discloses a device and method for displaying a collision risk area in front of a vehicle in rainy and foggy weather. A millimeter-wave radar is used for detecting the relative distance and speed between the vehicle and a front obstacle; a CCD industrial camera collects front road surface information, extracts texture and color features, predicts front road surface attribute types, and identifies adhesion coefficients of the front road surface attribute types; a projection lamp displays images of different colors on the front road surface according to the critical safety distancecalculated by the control unit, and projects a green image on the front road surface when no obstacle exists in front of the vehicle or the distance between the projection lamp and the obstacle is larger than 1.5 times of the critical safety distance; when the distance to the obstacle is smaller than 1.5 times and larger than 1.2 times of the critical safety distance, the distance is an early warning distance, and a yellow image is projected on the road surface; when the distance to the obstacle is smaller than 1.2 times of the critical safety distance, the distance is the braking safety distance, and a red image is projected on the road surface; and the audible and visual alarm gives an alarm to remind a driver to brake when the obstacle enters 1.2 times of the critical safety distance.

    本发明公开了一种雨雾天气显示车辆前方碰撞风险区域的装置和方法,利用毫米波雷达探测车辆与前方障碍物相对距离和速度;CCD工业相机采集前方路面信息,提取纹理和颜色特征,预测前方路面属性类型,辨识其附着力系数;投影灯根据控制单元计算出的临界安全距离,在前方路面显示不同颜色的图像,当车辆前方无障碍物或与障碍物的距离大于1.5倍临界安全距离,则在前方路面投影绿色图像;当与障碍物的距离小于1.5倍且大于1.2倍临界安全距离,则为预警距离,在路面投影黄色图像;当与障碍物的距离小于1.2倍临界安全距离,则为制动安全距离,在路面投影红色图像;声光报警器在障碍物进入1.2倍临界安全距离以内时,发出警报提醒驾驶员采取制动。


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    Titel :

    Device and method for displaying collision risk area in front of vehicle in rainy and foggy weather


    Weitere Titelangaben:

    一种雨雾天气显示车辆前方碰撞风险区域的装置和方法


    Beteiligte:
    YUAN CHAOCHUN (Autor:in) / LYU SONGLIN (Autor:in) / HE YOUGUO (Autor:in) / WENG SHUOFENG (Autor:in) / SONG JINXING (Autor:in)

    Erscheinungsdatum :

    2020-06-05


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / 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



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