High-precision updating method, system and device for automatic driving map

The invention discloses a high-precision updating method, system and device for an automatic driving map, and belongs to the technical field of driving map updating, and the method comprises the steps: obtaining real-time point cloud data through road test equipment and an automatic driving vehicle, and carrying out the NDT matching of the real-time point cloud data with the road test equipment and a map around the vehicle, obtaining the score condition of each frame of each piece of road test equipment, obtaining a matching degree according to the score condition, judging whether a to-be-updated road surface element exists in the current position according to the matching degree, uploading the coordinate of the position with the matching degree lower than a preset threshold value and time to a cloud, and processing the uploaded data by a data processing module of the cloud, according to the position obtained through data processing, data are collected through a map collection vehicle and uploaded to a cloud