METHOD, SYSTEM AND COMPUTER PROGRAM FOR ACQUIRING POSITION INFORMATION OF MOBILE BODY

• Main Authors: OBA TAKUYA, TSUKAMOTO SHINYA, UMEDA HAYATO
• Format: Patent
• Language: English; Japanese
• Published: 03.06.2021
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

To efficiently acquire position information of a mobile body by surely tracking the mobile body, even though the mobile body of which position information shall be acquired moves in a wide range, and even under the presence of an obstacle that blocks collimation.SOLUTION: A first surveying device 1 is set at a position with a known coordinate value, and a second surveying device 2 is set at an arbitrary position. A target 9 attached to a mobile body 8 is tracked by the first surveying device 1 and the second surveying device 2, and both surveying devices measure an azimuth angle, an elevation angle, and a distance of a position of the target at the same time with regard to two points before movement and after movement of the mobile body. Coordinate values of the positions of the target before movement and after movement are computed from measurement values according to the first surveying device. The coordinate values are input to the second surveying device, and a coordinate value of an installation position of the second surveying device is computed, from the coordinate values and measurement values before movement and after movement that are measured by the second surveying device. Subsequently, tracking of the target, measurement of positions of the target, and computation of coordinate values are performed using the second surveying device.SELECTED DRAWING: Figure 2 【課題】位置情報を取得しようとする移動体が広い範囲に移動するときや、視準を遮断する障害物があるときにも確実に追尾し、効率よく移動体の位置情報を取得する。【解決手段】第１の測量装置１を座標値が既知の位置に設定し、第２の測量装置２を、任意の位置に設定する。第１の測量装置及び第２の測量装置により移動体８に取り付けられたターゲット９を追尾し、移動体の移動前と移動後の２点において双方の測量装置が同時にターゲットの位置の方位角、仰角及び距離を測定する。第１の測量装置による測定値から移動前及び移動後のターゲットの位置の座標値を演算する。これらの座標値は第２の測量装置に入力し、これらの座標値と第２の測量装置によって測定された移動前及び移動後の測定値とから、第２の測量装置の設置位置の座標値を演算する。その後、第２の測量装置によるターゲットの追尾、ターゲットの位置の測定および座標値の演算を行う。【選択図】図２