Position measurement apparatus
AssigneeAlps Alpine Co., Ltd.
InventorsKeigo WAKANA, Yukimitsu YAMADA, Daisuke TAKAI
Life of this patent
Estimating the term…
Abstract
A mobile station M is moved close to a mobile terminal unit 20 as a target object. In ST1, the absolute position of the mobile station M in an absolute coordinate system (Abs) set in a measurement area is calculated. In ST2, the relative position of the mobile terminal unit 20 in a relative coordinate system (Rel) set by the mobile station M is detected. In ST3, the orientation of the mobile station M in the absolute coordinate system (Abs) is detected. In ST4, the relative coordinate system (Rel) is rotated. In ST5, the absolute position of the mobile terminal unit 20 in the absolute coordinate system (Abs) is specified.
Claims7
A position measurement apparatus for determining a position of a target object arranged in a measurement area, the position measurement apparatus comprising:
- a mobile station configured to move in the measurement area;
- an absolute position measurement unit configured to measure an absolute position of the mobile station in the measurement area;
- a relative position measurement unit configured to measure a relative position of the target object with respect to the mobile station,
- wherein an absolute position of the target object in the measurement area is determined from a measurement value of the absolute position and a measurement value of the relative position.
Dependencies are inferred from the claim text.