Surveying system and auxiliary measuring instrument

1. A method for surveying and/or marking points on an object on the basis of planned positions for purposes of constructional activities, with the steps of

setting up a stationary surveying device at a first known positioning in a surrounding area of the object, wherein the surveying device has

a base,

a targeting unit, in particular a telescopic sight, which defines a target direction (x) and can be pivoted with respect to the base about at least one axis (y, z), in particular two axes orthogonal to one another,

a beam source, in particular a laser source, for generating radiation and also an optical unit for emitting the radiation as a free beam in the target direction, wherein the free beam serves for surveying and/or marking object points,

at least one angle meter and also an angle-measuring functionality for measuring the target direction (x), and

a controller with single-point determining functionality,

a memory, in which input or surveyed positions can be stored, in particular as part of a plan of a building or room,

retrieving from the memory a set of object points of the object to be surveyed and/or to be marked,

surveying and/or marking from the first positioning (P 1 ) object points of the set of object points that can be surveyed and/or can be marked from the first positioning (P 1 ) by means of the free beam, on the basis of the target direction (x),

ascertaining missing object points of the set of object points,

relocating the surveying device to a second, unknown positioning (P 2 ) in the surrounding area of the object,

automatically determining the second positioning (P 2 ) by the surveying device on the basis of the knowledge of the first positioning (P 1 ), so that the second positioning (P 2 ) is known,

surveying and/or marking missing object points by means of the free beam from the second positioning (P 2 ).

2. The method as claimed in claim 1 , wherein before the relocation, a positioning proposal suitable for the second positioning (P 2 ) is at least approximately calculated by the controller of the surveying device, on the basis of stored positions, and the positioning proposal is displayed to a user on a display.

3. The method as claimed in claim 2 , wherein a measuring angle as perpendicular as possible of the free beam in the case of one or more missing object points is used as a criterion for the calculation of the positioning proposal.

4. The method as claimed in claim 2 , wherein the calculation of the positioning proposal takes into account information concerning a target direction (x) in relation to at least one of the missing positions.

5. The method as claimed in claim 2 , wherein the display of the positioning proposal takes place in a graphic form,

embedded in a visualization of a plan of a building or room and/or

embedded in a 2D or 3D panoramic image, recorded in situ, of the surrounding area and/or

as an augmented reality representation in a live video image of the surrounding area.

6. The method as claimed in claim 1 , wherein the automatic determination of the second positioning (P 2 ) is performed on the basis of a depiction of the surrounding area produced by the surveying device in the second positioning (P 2 ), in particular wherein the depiction of the surrounding area is produced by means of a camera image of the surveying device and/or a laser scan carried out by means of the free beam.

7. The method as claimed in claim 6 , wherein: in the course of the automatic determination of the second positioning (P 2 ), the depiction of the surrounding area of the second positioning

is compared with a depiction of the surrounding area produced in the first positioning (P 1 ), in particular wherein positions that can be seen in both depictions of the surrounding area and are processed from the first positioning (P 1 ) serve as a position reference and/or

is compared with a stored digital plan of a building or room.

8. The method as claimed in claim 1 , wherein the automatic determination of the second positioning (P 2 ) is performed by means of a structure-from-motion algorithm on the basis of measurement data of an inertial measurement unit and/or a series of camera images.

9. A stationary surveying device for surveying and/or optically marking points on an object on the basis of planned positions for purposes of constructional activities, wherein the surveying device has

a base,

a targeting unit, in particular a telescopic sight, which defines a target direction (x) and can be pivoted with respect to the base about at least one axis (y, z), in particular two axes orthogonal to one another,

a beam source, in particular a laser source, for generating radiation and also an optical unit for emitting the radiation as a free beam in the target direction (x),

at least one angle meter and also an angle-measuring functionality for measuring the target direction (x), and

a controller with single-point determining functionality,

a memory, in which input or surveyed positions can be stored, in particular as part of a plan of a building or room,

wherein:

the controller is designed for performing the method as claimed in claim 1 .

10. A computer program product with program code, which is stored on a machine-readable carrier, for performing the method as claimed in claim 1 .

11. The method as claimed in claim 3 , wherein the calculation of the positioning proposal takes into account information concerning a target direction (x) in relation to at least one of the missing positions.

12. The method as claimed in claim 3 , wherein the display of the positioning proposal takes place in a graphic form,

embedded in a visualization of a plan of a building or room and/or

embedded in a 2D or 3D panoramic image, recorded in situ, of the surrounding area and/or

as an augmented reality representation in a live video image of the surrounding area.

13. The method as claimed in claim 4 , wherein the display of the positioning proposal takes place in a graphic form,

embedded in a visualization of a plan of a building or room and/or

embedded in a 2D or 3D panoramic image, recorded in situ, of the surrounding area and/or

as an augmented reality representation in a live video image of the surrounding area.

14. The method as claimed in claim 5 , wherein the automatic determination of the second positioning (P 2 ) is performed on the basis of a depiction of the surrounding area produced by the surveying device in the second positioning (P 2 ), in particular wherein the depiction of the surrounding area is produced by means of a camera image of the surveying device and/or a laser scan carried out by means of the free beam.

15. The method as claimed in claim 7 , wherein the automatic determination of the second positioning (P 2 ) is performed by means of a structure-from-motion algorithm on the basis of measurement data of an inertial measurement unit and/or a series of camera images.

16. A stationary surveying device for surveying and/or optically marking points on an object on the basis of planned positions for purposes of constructional activities, wherein the surveying device has

a base,

a targeting unit, in particular a telescopic sight, which defines a target direction (x) and can be pivoted with respect to the base about at least one axis (y, z), in particular two axes orthogonal to one another,

a beam source, in particular a laser source, for generating radiation and also an optical unit for emitting the radiation as a free beam in the target direction (x),

at least one angle meter and also an angle-measuring functionality for measuring the target direction (x), and

a controller with single-point determining functionality,

a memory, in which input or surveyed positions can be stored, in particular as part of a plan of a building or room,

wherein:

the controller is designed for performing the method as claimed in claim 8 .

17. A computer program product with program code, which is stored on a machine-readable carrier, for performing the method as claimed in claim 8 .