{
  "$type": "site.standard.document",
  "description": "Disclosed is a position calculating system for a haulage vehicle including wheels and a body frame 22 mounted on the wheels. The system includes an attitude detection sensor fixed on the body frame, a wheel rotational speed sensor 103, a loading status information acquiring unit 111, a correction…",
  "path": "/patents/945872",
  "publishedAt": "2016-03-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01B21/00",
    "HITACHI CONSTRUCTION MACHINERY [JP]"
  ],
  "textContent": "Disclosed is a position calculating system for a haulage vehicle including wheels and a body frame 22 mounted on the wheels. The system includes an attitude detection sensor fixed on the body frame, a wheel rotational speed sensor 103, a loading status information acquiring unit 111, a correction amount setting unit 112, a velocity vector calculating unit 113, and a position calculating unit 114. The loading status information acquiring unit 111 acquires loading status information indicating whether the body frame 22 is in a loaded state or in an unloaded state. The correction amount setting unit 112 calculates, based on the attitude information, a correction amount required for bringing detection axes in the loaded state into coincidence with corresponding detection axes in the unloaded state. The velocity vector calculating unit 113 calculates the velocity vector of the haulage vehicle. The position calculating unit 114 calculates a position of the haulage vehicle by using the velocity vector.",
  "title": "POSITION CALCULATING SYSTEM AND HAULAGE VEHICLE"
}