{
  "$type": "site.standard.document",
  "description": "An in-vehicle apparatus and a map data management system are provided that can appropriately update a map. The in-vehicle apparatus includes a storage unit that stores parcel data PD constituted by a plurality of files in accordance with meshes of the map, and a control unit that, when a vehicle…",
  "path": "/patents/1384551",
  "publishedAt": "2017-10-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/26",
    "CLARION CO., LTD."
  ],
  "textContent": "An in-vehicle apparatus and a map data management system are provided that can appropriately update a map. The in-vehicle apparatus includes a storage unit that stores parcel data PD constituted by a plurality of files in accordance with meshes of the map, and a control unit that, when a vehicle enters a single mesh of the map, updates the version of lower-level parcel files DPF corresponding to meshes at the periphery of the single mesh.",
  "title": "IN-VEHICLE APPARATUS AND MAP DATA MANAGEMENT SYSTEM"
}