Intersection radar installation angle determination method and system

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Intersection radar installation angle determination method and system

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YAN JUN / CHEN YUN / WANG WEI

The invention discloses an intersection radar installation angle determination method and system, and relates to the field of intersection intelligent vehicle management, and the method comprises the steps: selecting a preset number of calibration points from the boundary of a preset circular region in a preset calibration coordinate system corresponding to an intersection; respectively corresponding coordinate vectors of the preset number of calibration points in the preset calibration coordinate system are converted into coordinate vectors in the corrected coordinate system; according to the slope vector of the connection line of the adjacent calibration points of the preset number of calibration points corresponding to the current intersection under the corrected coordinate system and the slope direction of the connection line of the adjacent calibration points of the preset number of calibration points corresponding to the current intersection under the preset deflection coordinate system, the preset deflection coordinate system is obtained; and the radar installation angle corresponding to the current intersection is determined according to the preset number of calibration points and the y-axis coordinate vectors of the preset number of calibration points corresponding to the current intersection in the preset skew coordinate system, so that the acquisition accuracy of the radar installation angle can be improved.

本发明公开一种路口雷达安装角确定方法及系统，涉及路口智能车辆管理领域，包括：通过从路口对应的预置标定坐标系中的预置圆形区域边界上选择预置个数标定点，将预置个数标定点在预置标定坐标系中分别对应的坐标向量转换到在校正后的坐标系下的坐标向量，并且根据当前路口对应的预置个数标定点在校正后的坐标系下的相邻标定点连线的斜率向量、当前路口对应的预置个数标定点在预置偏斜坐标系下的相邻标定点连线的斜率向、以及当前路口对应的预置个数标定点在预置偏斜坐标系下的y轴坐标向量，确定当前路口对应的雷达安装角，可以提升雷达安装角的获取准确率。