{
  "$type": "site.standard.document",
  "description": "A position calculation method includes: as a calculation using a current position of a mobile object, a link candidate point position, an error variance of positions of a plurality of links included in a region around the current position, and an error variance of azimuths of the plurality of…",
  "path": "/patents/978382",
  "publishedAt": "2014-02-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/30",
    "CLARION CO LTD [JP]"
  ],
  "textContent": "A position calculation method includes: as a calculation using a current position of a mobile object, a link candidate point position, an error variance of positions of a plurality of links included in a region around the current position, and an error variance of azimuths of the plurality of links, calculating, based upon a distance between the current position and the link candidate point position and based upon an azimuthal difference between an azimuth of movement of the mobile object and a link candidate point azimuth, by adding together a plurality of data items including the distance and the azimuthal difference obtained at each of predetermined intervals up to the link candidate point position, an evaluation value that corresponds to a probability that the mobile object is traveling upon a road corresponding to each link candidate point, for each link including the each link candidate point; and calculating the current position based upon the evaluation value, by taking the mobile object as being positioned at a link candidate point, among a plurality of link candidate points, for which the probability is highest.",
  "title": "POSITION CALCULATION METHOD AND POSITION CALCULATION DEVICE"
}