{
  "$type": "site.standard.document",
  "description": "A surveying device configured to perform a survey by tracking, as a survey target, a prism attached to a camera of a movable imaging device includes an electronic distance meter configured to measure a distance to the survey target; a horizontal angle detector and a vertical angle detector each…",
  "path": "/patents/1282783",
  "publishedAt": "2021-02-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C25/005",
    "Topcon Corporation"
  ],
  "textContent": "A surveying device configured to perform a survey by tracking, as a survey target, a prism attached to a camera of a movable imaging device includes an electronic distance meter configured to measure a distance to the survey target; a horizontal angle detector and a vertical angle detector each configured to measure an angle; a main body supporting these members; a time obtainer configured to obtain a GPS time from a GPS satellite; a tilt sensor configured to detect a posture of the main body a calibrator configured to calibrate the tilt sensor and a survey controller that causes the calibrator to perform calibration during a period in which the time obtainer obtains the GPS time, as an advance preparation to be performed before the measurement.",
  "title": "SURVEYING DEVICE"
}