{
  "$type": "site.standard.document",
  "description": "The device (10) has a position determining unit (16) to detect changes in position of vehicle. An ultrasonic transceiver (18) transmits and receives ultrasonic waves to determine run time changes of ultrasonic waves. A control unit (22) evaluates the signals generated by position determining unit…",
  "path": "/patents/978263",
  "publishedAt": "2014-02-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60R25/1004",
    "ATRAL SECAL GMBH [DE]"
  ],
  "textContent": "The device (10) has a position determining unit (16) to detect changes in position of vehicle. An ultrasonic transceiver (18) transmits and receives ultrasonic waves to determine run time changes of ultrasonic waves. A control unit (22) evaluates the signals generated by position determining unit and ultrasonic transceiver to produce a reference signal which is transmitted to a monitoring station by transmission unit (26). A power source operates the position determining unit, ultrasonic transceiver, control unit and transmission unit. An independent claim is included for a monitoring system for vehicle.",
  "title": "Device and method for monitoring a vehicle"
}