{
  "$type": "site.standard.document",
  "description": "A traveling direction velocity calculation device calculates a posture of an acceleration sensor with respect to a user, using a detection result represented in a local coordinate system associated with the acceleration sensor , detecting acceleration, which is worn on a user's body, when a change…",
  "path": "/patents/1383111",
  "publishedAt": "2016-05-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/16",
    "SEIKO EPSON CORPORATION"
  ],
  "textContent": "A traveling direction velocity calculation device calculates a posture of an acceleration sensor with respect to a user, using a detection result represented in a local coordinate system associated with the acceleration sensor , detecting acceleration, which is worn on a user's body, when a change in the detection result of the acceleration sensor satisfies a predetermined specific condition. The detection result of the acceleration sensor at a time different from that when the posture is calculated and at a time when the specific condition is satisfied is transformed, using the calculated posture, to a mobile body coordinate system associated with a user. A velocity in a traveling direction of the user is calculated using the transformed detection result.",
  "title": "MOVEMENT STATE INFORMATION CALCULATION METHOD AND MOVEMENT STATE INFORMATION CALCULATION DEVICE"
}