公开(公告)号：US11015930B2

公开(公告)日：2021-05-25

申请号：US16197029

申请日：2018-11-20

Applicant: LEICA GEOSYSTEMS AG

Inventor： Bernhard Metzler ,  Tobias Heller ,  Siegfried Wiltsche

IPC: G01C11/00 ,  G01C11/30 ,  G01C11/02 ,  G06T7/00 ,  H04N5/232

Abstract: A method for a three dimensional surveying of a 3D-scene for deriving a true-to-size 3D-model. It involves deriving a first 3D-partial-model of a section of the 3D-scene together with a capturing of at least one first 2D-visual-image and a second 3D-partial-model of another section of the 3D-scene, together with a capturing of at least one second 2D-visual-image, wherein the 3D-partial-models are partially overlapping. The first 3D-partial-model is conglomerated with the second 3D-partial-model to form the 3D-model of the 3D-scene, which is done with defining a first line segment in the first 2D-visual-image and a second line segment in the second 2D-visual-image, which first and second line segments are representing a visual feature, which is common in both of the 2D-visual-images. The line segments in the 2D-visual-images are utilized in conglomerating the corresponding 3D-partial models to form the 3D-model of the whole 3D-scene.

公开(公告)号：US10162057B2

公开(公告)日：2018-12-25

申请号：US15379443

申请日：2016-12-14

Applicant: LEICA GEOSYSTEMS AG

Inventor： Bernhard Metzler ,  Beat Aebischer ,  Knut Siercks ,  Siegfried Wiltsche

IPC: G01B11/14 ,  G01S17/42 ,  G01S7/481 ,  G01C15/00 ,  G01S17/02 ,  G01S5/16

Abstract: Some embodiments of the invention relate to a method for capturing a relative position of at least one first spatial point by means of a portable distance measuring device, the method comprising positioning a known reference object, which has known features which may be captured by optical means, said features being arranged in a pattern designed for a resection, at least one first measuring process, comprising measuring a first distance to the first spatial point, and recording a first reference image linked in time with measuring the first distance, the reference object being imaged in the first reference image, and ascertaining the position and orientation of the distance measuring device relative to the reference object comprising identifying the reference object, recalling stored information about the known features of the identified reference object and identifying positions of known features of the reference object in the first reference image.

公开(公告)号：US09441990B2

公开(公告)日：2016-09-13

申请号：US14326362

申请日：2014-07-08

Applicant: Leica Geosystems AG

Inventor： Peter Forrer ,  Siegfried Wiltsche

IPC: G01R27/26 ,  G01D5/241

CPC classification number: G01D5/2415

Abstract: Some embodiments may include a capacitive rotary position encoder for the absolute determination of a rotary position about a rotary spindle. The rotary position encoder may include a transceiver unit, comprising a first arrangement of N electrically conductive, capacitive sensitivity areas which are embodied as angle segments over a defined angle range, which are distributed uniformly over the circumference, an electrically conductive reference area and an evaluation circuit, by means of which an electrical capacitance value between the reference area and one of the sensitivity areas is determinable. In some embodiments the sensitivity areas and the reference area are embodied as conductor track structures on a first electronics printed circuit board. A counterpart may be situated opposite the transceiver unit and rotatable relative thereto about the rotary spindle and may include a reference coupling area arranged opposite the reference area, and an arrangement of electrically conductive code areas connected thereto.

Abstract translation: 一些实施例可以包括用于绝对确定围绕旋转主轴的旋转位置的电容旋转位置编码器。 旋转位置编码器可以包括收发器单元，该收发器单元包括N个导电的电容灵敏区域的第一布置，这些区域被实施为在圆周上均匀分布的限定角度范围上的角度段，导电参考区域和评估 电路，通过该电路可以确定参考区域和灵敏区域之一之间的电容值。 在一些实施例中，灵敏度区域和参考区域被实施为第一电子印刷电路板上的导体轨道结构。 对方可以位于收发器单元的对面并且可绕其旋转主轴相对地旋转，并且可以包括与参考区域相对布置的参考联接区域以及与其连接的导电代码区域的布置。