{
  "$type": "site.standard.document",
  "description": "A method for generating and updating digital maps using a plurality of passages along a road portion by at least one road vehicle is provided. Each road vehicle comprises a perception system having at least one sensor configured to monitor a surrounding environment of the vehicle. The method…",
  "path": "/patents/1420726",
  "publishedAt": "2026-06-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/32",
    "ZENUITY AB [SE]"
  ],
  "textContent": "A method for generating and updating digital maps using a plurality of passages along a road portion by at least one road vehicle is provided. Each road vehicle comprises a perception system having at least one sensor configured to monitor a surrounding environment of the vehicle. The method comprises obtaining positioning data and sensor data of each passage from the at least one road vehicle. The positioning data comprises a plurality of longitudinal positions of each passage within a plurality of segments of the road portion, and the sensor data comprises information about a surrounding environment of each road vehicle at each longitudinal position. Further, the method comprises forming a sub-map representation of the surrounding environment at each obtained longitudinal position based on the obtained sensor data, and estimating a longitudinal error for each obtained longitudinal position within each segment. The estimation is done by performing a numerical optimization of the longitudinal error of each obtained longitudinal position within a common segment based on a similarity level of the formed sub-map representations from the common segment. Further, the method comprises determining a new plurality of longitudinal positions of each road vehicle for each passage by applying the estimated longitudinal error on each corresponding obtained longitudinal position, and applying the determined new plurality of longitudinal positions on associated sensor data in order to generate a first layer of a map representation of the surrounding environment along the road portion.",
  "title": "METHOD AND SYSTEM FOR GENERATING AND UPDATING DIGITAL MAPS"
}