Marking system and method for marking

Abstract

A method for applying a position marking for a working position to a substrate, for example a wall, a ceiling, a floor or the like, at a marking position assigned to it, comprising: a. unsystematically or systematically moving a portable marking system over a marking area of the substrate; b. determining at least one position of the marking system; c. marking at the determined position of the marking system, provided that the determined position coincides with the marking position or at least coincides with the marking position to a predefined or predefinable degree of accuracy. The invention also relates to a marking system.

Claims

1. A method for applying a position marking for a working position to a substrate in a building or a building element at a marking position assigned to the substrate, comprising: a. projecting a line of light onto the substrate in the building or the building element to define a marking area; b. unsystematically or systematically moving a portable marking system comprising an optical receiver over a marking area of the substrate; c. determining at least one position of the portable marking system by whether the optical receiver, which is a line sensor with multiple light sensitive pixels, of the portable marking system detects light from the projected line of light d. marking at the at least one determined position of the portable marking system, using a marking unit with an arrangement of multiple markers, provided that the optical receiver detects light at the projected line of light at the at least one determined position, wherein one or more of the multiple light sensitive pixels is respectively assigned a suitably positioned marker, which is activated as soon as the respective pixel detects light from the line of line.

2. The method as claimed in claim 1, including establishing a stationary coordinate system in relation to a ceiling of the substrate.

3. The method as claimed in claim 1, including determining at least one position of the portable marking system.

4. The method as claimed in claim 1, including using a marking unit with at least two markers for marking at the at least one determined position.

5. The method as claimed in claim 1, wherein a user moves the portable marking system manually over the marking area according to b.

6. The method as claimed in claim 1, including marking several position markings within the marking area.

7. The method as claimed in claim 1, including first moving the portable marking system to a starting point within the marking area as part of an initial positioning.

8. A portable marking system for marking a position marking on a substrate in a building or a building element at a marking position assigned to the position marking, comprising a marking unit with an arrangement of multiple markers; a position determining system for detecting a position of the marking system comprising an optical receiver which is a line sensor with multiple light sensitive pixels to detect a position of the marking system by checking whether the optical receiver detects light from a projected line of light; and a control unit which is set up to mark a position marking or at least part of the position marking on the substrate at least once by the marking unit if the marking system is at the marking position or is in a measuring range corresponding to a predefined or predefinable degree of accuracy around the marking position, and not to mark a marking if the marking system is outside the measuring range, wherein the marking unit corresponds to the arrangement of multiple markers and by one or more of the pixels respectively assigned a suitably positioned marker, which is activated as soon as the respective pixel detects light from the line of light.

9. The marking system as claimed in claim 8, wherein the marking system has a handle.

10. The marking system as claimed in claim 8, wherein the marking system has a guide rod and/or a receptacle for a guide rod.

11. The marking system as claimed in claim 8, wherein the marking system has at least one distance sensor, a structured light source in connection with a structured-light-receiving and evaluation unit, a transit time sensor and/or an acceleration sensor.

12. The marking system as claimed in claim 8, wherein the marking system has a tachymeter and/or is set up for communication with a tachymeter.

13. The marking system as claimed in claim 8, wherein the marking system comprises a motorized means of transport or in that the marking system can be arranged on the motorized means of transport.

14. The marking system as claimed in claim 8, wherein the marking system is set up to apply to the surrounding area a light geometry projected onto the surrounding area.

15. The method of claim 1, wherein the substrate is a wall, a ceiling, or a floor.

16. The method of claim 1, wherein b comprises regularly determining at least one position of the portable marking system.

17. The method of claim 4, including using at least 25 markers for marking the at least one determined position.

18. The method as claimed in claim 2, including determining at least two positions and/or a position range of the marking system in parallel.

Description

(1) FIGS. 1a and 1b show schematic representations of a marking system that can be operated in two operating modes and its use by a user;

(2) FIG. 2 shows a perspective representation of a marking system obliquely from above;

(3) FIG. 3 shows a plan view of the marking system according to FIG. 2 and

(4) FIG. 4 shows a sectional view of the marking system according to FIG. 2.

(5) To facilitate understanding, the same reference numerals are assigned wherever possible to elements that are the same or at least functionally corresponding elements in the various figures of the drawing and in the following description of the figures.

(6) FIG. 1a shows a user 10 who is using a portable marking system 12. In the situation shown in FIG. 1a, the marking system 12 is operated in a first operating mode, in which the marking system 12 traces a line of light 16 projected onto a surrounding area 14, here a wall. The surrounding area 14, i.e. the wall, forms a building element, and thus part of a building.

(7) To distinguish the line of light 16 from a position marking 18 generated by the marking system 12 as described below, the line of light 16 is represented by dashed lines in FIG. 1a.

(8) The line of light 16 is generated by a rotary laser 20. The rotary laser 20 is set up to project the line of light 16 horizontally onto the surrounding area 14 at a desired height, resulting for example from a construction plan. Corresponding to the line of light 16, the course of the line of light 16 is now intended to be marked as a position marking 18, in particular permanently, on the surrounding area 14. For example, the position marking 18 may then be provided as a marking for a later course of a cutting line of a breakthrough through the surrounding area 14, that is to say through the wall, or as a marking of a working position along which a cut is to be made. A stationary, at least one-dimensional coordinate system that is independent of the marking system 12 is thus produced in this operating mode in each case by the height defined by the line of light 16 as a reference and a vertical line as the coordinate axis.

(9) In order to mark the position marking 18, the user 10 moves the marking system 12, for example from a lateral end of the surrounding area 14 to an opposite lateral end such that the line of light 16 falls on an optical receiver of the marking system 12. The optical receiver has a certain extent, in particular vertical in the position of the marking system 12 according to FIG. 1a, so that the user 10 only needs to move the marking system 12 approximately horizontally along the line of light 16. In particular, the user 10 can move the marking system 12 above and below as well as along the line of light 16 in a marking area resulting approximately from the size of the optical receiver.

(10) The marking system 12 has a marking unit with multiple markers on a side facing the substrate 14. Depending on the pixel through which the light of the line of light 16 is detected, a control unit of the marking system 12 possibly controls a marker of the marking unit assigned to the pixel and thereby emits ink onto the surrounding area 14 at a position that suitably corresponds to the respective pixel, so that in the course of time the position marking 18 is applied on the surrounding area 14. In the event that no marker is assigned to the respective pixel, position information in the form of directional arrows is displayed on a display unit of the marking system 12.

(11) FIG. 1b shows the user 10 when using the portable marking system 12 in a second operating mode. In this second operating mode, position markings 18 of a construction plan that are stored in a memory unit of the marking system 12, including their marking positions, are marked directly on a substrate 14, here a floor. This surrounding area 14, i.e. the floor, also forms a building element and thus part of a building. Several position markings 18 of the position markings 18 to be marked have already been marked at the time shown in FIG. 1b.

(12) The position markings 18, which in FIG. 1b are schematically shown as crosses and of which only one position marking 18 is marked with a reference symbol for the sake of clarity, may for example represent markings of working positions at which, for example, bores or the like are to be provided.

(13) In contrast to the variant of the method described above with reference to FIG. 1a, in the variant shown in FIG. 1b the marking system 12 is assisted by a motorized total station 22, in determining the position by a position determining system of the marking system 12. For this purpose, the marking system 12, in particular its position determining system, is set up to communicate bidirectionally with the total station 22. The total station 22 continuously tracks the marking system 12, determines its position in relation to a predefined, stationary coordinate system in relation to the substrate 14, and transmits the determined position, in particular corresponding coordinates, to the marking system 12. For this purpose, the marking system 12 detects by means of its optical receiver whether and, if so, on which pixel of the optical receiver a measuring beam 24 of the total station 22 falls and in turn continuously communicates this to the total station 22.

(14) The user 10 moves the marking system 12 with the aid of a guide rod 26 within a marking area 28, in which he expects position markings 18 still to be marked. The guide rod 26 allows a manual swiping movement and thus, for the user 10, a particularly ergonomic and also rapid movement of the marking system 12.

(15) In summary, FIG. 1a and FIG. 1b each show variants of a method for applying a position marking 18 for a working position to a substrate 14, here a wall or a floor, at a marking position assigned to it, comprising the steps of: a. unsystematically or systematically moving the portable marking system 12 over a marking area 28 (according to FIG. 1b) of the substrate 14; b. regularly determining at least one position of the marking system 12; c. marking at the determined position of the marking system 12, provided that the determined position coincides with the marking position at least to a predefined degree of accuracy with the marking position.

(16) The predefined degree of accuracy results here in particular from the distance between the individual pixels of the optical receiver and the accuracy with which positions of the respectively assigned markers can be determined from the determined positions of the pixels.

(17) The portable marking system 12 described here for marking the respective position markings 18 on the respective substrate 14 at the marking positions assigned to the position markings 18, i.e. along the line of light 16 according to FIG. 1a or stored marking positions, consequently comprises in summary a marking unit with multiple markers, a position determining system for detecting a position of the marking system 12 and a control unit which is set up to mark in each case one of the position markings 18 or at least part of the respective position marking 18 on the substrate 14 at least once by means of the marking unit if the marking system 12 is at the marking position or in a measuring range corresponding to the predefined degree of accuracy around the respective marking position and not to mark a marking if the marking system 12 is outside the measuring range.

(18) The structure of the marking system 12 will now be explained in more detail on the basis of the following figures.

(19) FIG. 2 shows for this purpose a perspective representation of the marking system 12.

(20) The marking system 12 has an operating unit 30 with a display unit 32. The marking system 12 can be switched to the various operating modes by means of the operating unit 30. The marking system 12 is also set up to display status information about the marking system 12 on the display unit 32, for example a filling level of an ink supply or a state of charge of a rechargeable battery. It is also set up, as described above, to show position information on the display unit 32, for example instructions to the user 10 (FIG. 1) in the form of directional arrows as to the direction in which the marking system 12 is preferably to be moved.

(21) The control unit and the position determining system are integrated in the operating unit 30. These are formed by an electronic circuit with a microprocessor unit, a memory unit in which corresponding program codes are stored in an executable manner, a communication interface and with other correspondingly required electronic components.

(22) The marking system 12 also has a handle 34. The handle 34 is detachably arranged on the marking system 12 and can be exchanged for a receptacle for the guide rod 26 (see FIG. 1b) with which the guide rod 26 can be attached to the marking system 12.

(23) An optical receiver 36 can also be seen. The optical receiver 36 has a linear form. It is formed as a line sensor. It extends at least substantially over the entire width of the marking system 12.

(24) FIG. 3 shows a plan view of the marking system 12. FIG. 4 shows a sectional view of the portable marking system 12 according to the section line IV-IV from FIG. 3.

(25) Referring in particular to FIG. 4, a marking unit 38 can be seen. The marking unit 38 is arranged on an underside of the marking system 12, while the optical receiver 36 is located on an upper side of the marking system 12.

(26) The marking unit 38 is arranged in particular centrally below the optical receiver 36. The marking unit 38 has 24 markers. The markers are formed as ink-jet nozzles arranged next to one another and evenly distributed over the length of the marking unit 38.