{
  "$type": "site.standard.document",
  "description": "A management device includes processing circuitry configured to receive a plurality of inputs of road map data, refer to the road map data and generate a first polygon representing a lane region, generate, for a spatial mesh divided into a predetermined size, a second polygon representing a spatial…",
  "path": "/patents/1344203",
  "publishedAt": "2023-05-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/3867",
    "NIPPON TELEGRAPH AND TELEPHONE CORPORATION"
  ],
  "textContent": "A management device includes processing circuitry configured to receive a plurality of inputs of road map data, refer to the road map data and generate a first polygon representing a lane region, generate, for a spatial mesh divided into a predetermined size, a second polygon representing a spatial index, and determine in which spatial mesh of a plurality of spatial meshes the first polygon exists, and in accordance with a result of the determination, and store data on the first polygon and data on the second polygon in a road coordinate database in association with each other.",
  "title": "MANAGEMENT DEVICE, MANAGEMENT METHOD, AND MANAGEMENT PROGRAM"
}