Targeting device for electro-optical measuring apparatuses

Patent metadata

Field	Value
Publication number	US-2016116281-A1
Application number	US-201514919612-A
Country	US
Kind code	A1
Filing date	Oct 21, 2015
Priority date	Oct 22, 2014
Publication date	Apr 28, 2016
Grant date	—

Abstract

Some embodiments of the invention relate to a targeting device for providing a substitution target of natural shape for the individual-point measurement of surface points with an electro-optical measuring apparatus. In some embodiments, the targeting device may include a carrier plate having at least one insertion seat, and a target panel. In some embodiments, the target panel is insertable into the insertion seat of the carrier plate. In some embodiments, the target panel may include at least one defined placement location for being placed onto the surface point to be measured, and at least one targeting marking.

First claim

1 - 10 . (canceled)

11 . A targeting device for providing a substitution target of natural shape for the individual-point measurement of surface points with an electro-optical measuring apparatus, the targeting device comprising:
a carrier plate having at least one insertion seat; and a target panel having:
at least one defined placement location for being placed onto the surface point to be measured, and
at least one targeting marking;
wherein the target panel is insertable into the insertion seat of the carrier plate, and wherein the at least one targeting marking, with regard to the position thereof on the target panel, is in predefined spatial correlation with the at least one defined placement location in such a way that, in the inserted state of the targeting device placed onto the surface point, such a spatial point—embodied by the targeting marking—is measurable which describes the true position of the surface point with an offset that is predefined and is includable in the measurement at least partly automatically by the measuring apparatus.

12 . The targeting device according to claim 1 , wherein the target panel comprises:
at least one insertion extension forming the at least one placement location or a plurality of placement locations, and shoulder extensions adjacent to the at least one insertion extension, such that the target panel is insertable into the insertion seat of the carrier plate with the aid of the at least one insertion extension and in a manner delimited by the associated shoulder extensions.

13 . The targeting device according to claim 1 , wherein the target panel comprises at least one non-centrally positioned side marking and at least one centrally positioned center marking and the targeting marking is formed by the at least one side marking which intersects the at least one center marking.

14 . The targeting device according to claim 13 , wherein the centrally positioned center marking is positioned centrally on the at least one insertion extension.

15 . The targeting device according to claim 1 , wherein the target panel comprises at least one non-centrally positioned side marking and at least one centrally positioned center marking and the targeting marking is formed by two intersecting center markings.

16 . The targeting device according to claim 1 , wherein:
the at least one insertion extension has at least one insertion extension edge which leads from the end side to the shoulder extensions and whose length delimits the insertion travel in a defined manner.

17 . The targeting device according to claim 16 , wherein:
the at least one insertion extension edge, with the at least one targeting marking, is correlated with regard to its position.

18 . The targeting device according to claim 16 , wherein the insertion extension edge lies in one plane.

19 . The targeting device according to claim 1 , wherein:
the at least one insertion extension edge, with the at least one side marking, is correlated with regard to its position and is in alignment.

20 . The targeting device according to claim 1 , wherein:
the at least one insertion extension, after insertion of the target panel into the insertion seat at the carrier plate base with the aid of the center marking situated on the insertion extension, is usable for placement of the targeting device on surface points.

21 . The targeting device according to claim 1 , wherein:
the at least one insertion extension, after insertion of the target panel into the insertion seat at the carrier plate base with the aid of the center marking situated on the insertion extension, is usable for alignment of the targeting device on surface points.

22 . The targeting device according to claim 1 , wherein:
after insertion of the target panel into the insertion seat, the at least one insertion extension, in a manner delimited by the shoulder extensions, at least partly penetrates into the carrier plate to an extent such that the height distance between carrier plate base and targeting marking is defined and known.

23 . The targeting device according to claim 1 , wherein:
the insertion extension, after insertion of the target panel into the insertion seat, penetrates through the carrier plate beyond the base thereof and, at said base of the carrier plate with the aid of at least one of its at least one insertion extension edge, is usable for placement of the targeting device on points to be measured at edges and corners.

24 . The targeting device according to claim 1 , wherein:
the insertion extension, after insertion of the target panel into the insertion seat, penetrates through the carrier plate beyond the base thereof and, at said base of the carrier plate with the aid of at least one of its at least one insertion extension edge, is usable for alignment of the targeting device on points to be measured at edges and corners.

25 . The targeting device according to claim 1 , wherein:
points not facing the measuring apparatus are made measurable by the targeting device by virtue of the latter making available, with the aid of referenced targeting markings, substitution points which, as a result of their predefined offset with respect to the reference plane, allow a highly accurate conclusion to be drawn about the points actually to be measured.

26 . The targeting device according to claim 24 , wherein:
wherein points not facing the measuring apparatus include hidden points.

Assignees

• Leica Geosystems Ag

Inventors

• Schroeder Frank
• Orman Canpolat

Classifications

• G01C15/02 Primary

  Means for marking measuring points · CPC title

• G01C15/008

  combined with inclination sensor · CPC title

• G01C15/002 Primary

  Active optical surveying means (optical plumbing G01C15/105) · CPC title

• G01C3/08

  Use of electric radiation detectors · CPC title

• G01C15/004 Primary

  Reference lines, planes or sectors · CPC title