1results about How to "Correct drift" patented technology

The application discloses a method for determining switching point information between maps, a navigation method, a device, a program product and a medium, and comprises the following steps: when the autonomous mobile device moves from a first sub-map to a transition area, current point cloud data of the environment around the autonomous mobile device is acquired, wherein the transition area represents an overlapping area between the first sub-map and a second sub-map to be entered; based on the current point cloud data, environment feature degradation degree and pose fusion data are calculated, and switching point information of an optimal switching point for entering the second sub-map is dynamically determined. The application can reduce drift when entering one sub-map from another sub-map, and improve the smoothness of map switching of the autonomous mobile device.