Method and system for optimizing man-machine interaction display position outside autonomous vehicle

The invention discloses a method and a system for optimizing a man-machine interaction display position outside an automatic driving vehicle, the system comprises the automatic driving vehicle, an eHMI, a LiDAR, a computer, a camera and a radar sensor, and the method comprises the following steps: S1, the automatic driving vehicle perceives a surrounding environment; s2, the autonomous vehicle forms a global scene through image processing; and S3, the automatic driving vehicle identifies other surrounding road users possibly having conflict risks with the automatic driving vehicle. The visual field range of the road user is recognized according to the gazing direction, the head posture, the body posture and the like of the road user, so that the display position of the eHMI is dynamically optimized, it is guaranteed that eHMI information can be accurately transmitted to surrounding road users, and the road users can understand the behavior intention of the automatic driving automobile through the eHMI so as t