EP4078084A1 - Laser-nivelliergerät und verfahren zum nivellieren - Google Patents
Laser-nivelliergerät und verfahren zum nivellierenInfo
- Publication number
- EP4078084A1 EP4078084A1 EP20815776.8A EP20815776A EP4078084A1 EP 4078084 A1 EP4078084 A1 EP 4078084A1 EP 20815776 A EP20815776 A EP 20815776A EP 4078084 A1 EP4078084 A1 EP 4078084A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laser
- laser emission
- emission device
- alignment
- projection surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
- G01C15/004—Reference lines, planes or sectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
- G01C15/008—Active optical surveying means combined with inclination sensor
Definitions
- the invention relates to a laser leveling device and a method for leveling using a laser leveling device according to the invention.
- a leveling device for generating an optical leveling signal which has a housing and a light signal device for generating a leveling signal, which is arranged in the housing so as to oscillate, the housing having an outlet opening for the leveling signal.
- Pendellaservorrich device The general structure of a Pendellaservorrich device is known from DE 10 2007 039 343 A1. More specific embodiments of pendulum laser devices are known from DE 10 2007 039 340 A1 and from DE 10 2009 016 169 A1 and DE 421 08 24 A1.
- the invention is based on a laser leveling device comprising at least one laser emission device for emitting an at least one-dimensional, Laser marking, in particular a laser line, in the emission direction onto a projection surface.
- the laser leveling device have a first sensor device for determining an actual alignment of the at least one laser emission device with respect to the projection surface, a control device set up to calculate a target alignment of the at least one laser emission device based at least on that averaged actual alignment of the at least one laser emission device with respect to the projection surface, as well as a positioning device for aligning the at least one laser emission device according to the target alignment.
- the laser leveling device is used to generate at least one optical laser marking in the context of leveling, aligning, measuring and / or marking tasks, as they occur in particular in the craft sector.
- laser leveling devices are used in the interior of buildings, in construction work, in the application of markings on walls or the like.
- the laser marking can be given, for example, by a one-dimensional laser line. Any configurations of the at least one-dimensional laser line are conceivable, for example a continuous line or linear pattern of laser markings such as laser points (dotted laser line) or laser lines (dashed laser line).
- a two-dimensional laser marking is also conceivable, for example an (elongated) rectangle or the like.
- the laser marking can be implemented as a laser cross made up of at least two intersecting laser lines.
- an orthogonal laser cross is conceivable in which two laser lines intersect at a right angle.
- the laser marking is generated on a distant object by projecting the emitted laser radiation.
- the area of the object onto which the laser marking is emitted is referred to in the following as the projection surface.
- the projection surface is a flat surface, for example a wall, a sloping roof, a floor or a ceiling.
- the laser leveling device can be implemented as a stationary device and / or as a hand-held device.
- a laser emission device is used to emit the laser marking onto the projection surface.
- the at least one laser emission device is set up to emit an at least one-dimensional laser marking, in particular a laser line, and to project it onto the projection surface.
- the at least one laser emission device emits laser radiation in one or under an emission direction onto the projection surface.
- the emission direction is the direction in which the laser power is emitted for the most part or on average. “Essentially” is to be understood to mean at least 60%, in particular at least 80%, in particular at least 90%. For example, in the case of a laser light emitted strahlför mig, the emission device is collinear with the emitted laser beam.
- the direction of emission is given, for example, by the direction in which the radiation - assuming a sufficiently large distance from the projection surface - essentially (i.e. on average) takes place. It should be noted that the implementation of the present invention depends on the emission direction implemented by the at least one laser emission device and not necessarily on the manner in which the emission of the laser radiation is implemented.
- the at least one laser emission device can be used in particular as at least one beam-shaping and / or beam-directing and / or the optical element influencing the properties of the laser radiation, in particular, for example, as a lens, filter, diffractive element, mirror, reflector, optically transparent disk or the like, be realized or at least include such an optical element.
- optical elements refers to any choice and / or combination of such optical elements.
- cylindrical lenses can be used to technically simply fan out a laser beam emitted by a laser light source to form a laser plane, so that a laser line is created when this laser plane is projected onto the projection surface.
- the emission direction is in the the optics is used as a laser emission device is defined or determined by the optics.
- the said cylindrical lens defines the emission direction of the laser plane generated and emitted by it on the basis of its refraction properties.
- the at least one laser emission device has at least one laser light source for generating the optical laser marking on the projection surface, for example a laser, a semiconductor laser or a laser diode.
- the at least one laser emission device has a laser light source and optics.
- the optics can be selected as a diffractive element for converting the laser beam emitted by the laser light source into a laser plane for generating the at least one-dimensional laser marking, in particular the laser line.
- the diffractive element and the laser light source together form the laser emission device.
- the at least one laser emission device can also have non-optical elements, for example means for adjustment and / or electronic circuits for controlling the laser light source and / or for controlling other components of the laser emission device.
- the first sensor device is used to determine an actual alignment of the at least one laser emission device with respect to the projection surface.
- the first sensor device thus also serves to determine an actual alignment of the at least one laser marking emitted by means of the at least one laser emission device with respect to the projection surface. "With respect to” is to be understood here in particular as “relative to”.
- the first sensor device comprises at least one distance sensor for contactless distance measurement in a distance measurement direction, the distance sensor being movably, in particular rotatable or adjustable, mounted with respect to a rotation axis, the Distance measuring direction forms a predetermined angle to the axis of rotation, the first sensor device being set up, based on at least three distance measurements in different directions, ie under different relative arrangements of the distance sensor to the axis of rotation, the actual alignment of the at least one laser emission device with respect to the projection surface to determine.
- the distance sensor can in particular be implemented as a laser range finder and / or an ultrasound range finder and / or a radar range finder.
- the distance sensor can be implemented as a SPAD laser range finder.
- the predetermined angle can in particular be an acute angle of less than 90 °, in particular less than 60 °, very particularly less than 30 ° (opening of the angle in the direction of the projection surface).
- a target point to which the distance sensor determines a distance on the projection surface describes an ellipse on the projection surface.
- a relative alignment of the at least one laser emission device with respect to the projection surface can be determined by calculation.
- at least two vectors can be determined from at least three distance measurements Ai, A2, A3 including the associated angles pi, P2, P3, which are in the plane of projection, with a respective vector connecting the target points of two distance measurements.
- a first vector can be defined between the target points of the distance measurements A1, A2 and a second vector between the target points of the distance measurements A2, A3.
- a normal vector of the projection surface can then be calculated by calculating the vector cross product, using which in turn an actual alignment of the at least one laser emission device with respect to the projection surface can be determined. It is also conceivable to carry out a large number of distance measurements to a large number of target points on the ellipse.
- the first sensor device comprises at least three spaced apart or three angularly arranged distance sensors for contactless Distance measurement, wherein the first sensor device is set up to determine the actual alignment of the at least one laser emission device with respect to the projection surface based on three distance measurements of the distance sensors.
- a movable, in particular rotatable or adjustable, mounting of a (in particular individual) distance sensor can be dispensed with, so that a mechanically particularly robust laser leveling device can be implemented.
- the first sensor device comprises at least one spatially resolved time-of-flight distance sensor for capturing spatially resolved distance measurements, the first sensor device being set up to determine the actual alignment of the at least one based on the spatially resolved distance measurements To determine laser Emissi onsvoriques with respect to the projection area.
- a time-of-flight distance sensor is known in principle to a person skilled in the art. In this way, the actual alignment of the at least one laser emission device with respect to the projection surface can be determined particularly quickly.
- the first sensor device comprises at least one stereo camera, the first sensor device being configured to determine the actual alignment of the at least one laser emission device with respect to the projection surface based on image data from the stereo camera.
- the first sensor device can also comprise a so-called "active stereo camera", in which a pattern or the like is projected onto the projection surface by means of an additional projector in order to generate features that can be detected in the image data (particularly suitable for projection surfaces with little structure such as white walls) .
- the first sensor device comprises
- a laser for emitting laser radiation in a transmission direction the laser being movable, in particular rotatable, with respect to an axis of rotation or adjustable, is mounted, the laser forming a predetermined angle to the axis of rotation,
- the first sensor device is set up to capture at least one image when laser radiation is emitted in at least three different directions, the image environment comprising at least the laser radiation projected onto the projection surface, and the actual orientation of the at least one image from the at least one image to determine a laser emission device with respect to the projection area.
- the first sensor device is set up to carry out an image evaluation or image analysis and to determine an actual alignment of the at least one laser emission device with respect to the projection surface from the position of the target points in the at least one image.
- the first sensor device comprises
- the first sensor device is set up to capture at least one image when laser radiation is emitted in the at least three transmission directions, the image environment comprising at least the laser radiation projected onto the projection surface and the actual alignment of the at least one from the at least one image To determine laser emission device with respect to the projection surface.
- a movable, in particular rotatable or adjustable, mounting of a laser can be dispensed with, so that a mechanically particularly robust laser leveling device can be implemented.
- Determine is to be understood in particular to mean that a statement or information is derived that draws a conclusion about the actual orientation of the at least allows a laser emission device with respect to the projection surface.
- an actual alignment of another (further) component - for example a housing or the first sensor device itself - is determined with respect to the projection surface
- Laser emission device to the other component - for example via an engine position or a design-related relative arrangement or the like - then an actual alignment of the at least one laser emission device with respect to the projection surface at least indirectly via the actual alignment of the other component with respect to the Projection area can be determined or calculated.
- the control device is used to control, in particular to operate, the laser leveling device.
- the control device is set up at least to calculate the target alignment of the at least one laser emission device based at least on the determined actual alignment of the at least one laser emission device with respect to the projection surface.
- the control device has at least one processor, a memory and an operating program with evaluation routines and / or calculation routines and / or control routines.
- the control device is signal-connected to further components of the laser leveling device, for example a positioning device, a laser light source, the first sensor device or the like.
- the evaluation routines and / or calculation routines include in particular suitable and specially parameterized functions, for example tri gonometric functions, to determine a respective target alignment of the at least one laser emission device based on an actual alignment of the at least one laser emission device with respect to the projection surface, in particular based on to be able to calculate the actual alignment with respect to the projection surface and an actual alignment with respect to a reference external to the device.
- suitable and specially parameterized functions for example tri gonometric functions
- the positioning device is used to align the at least one laser emission device according to the target alignment.
- the positioning device is set up to align the laser emission device, i.e. the optics and / or the laser light source.
- the at least one laser emission device can be rotated at least about a first axis using the positioning device.
- the first axis runs parallel or collinear to the emission direction of the at least one laser emission device.
- the laser emission device sends a laser line onto the projection surface
- the angle of incline of this laser line can be changed by rotating the laser emission device.
- the laser line can be rotated on the projection surface.
- the rotation can also be limited to a given angular range, for example due to the design.
- the rotation around the first axis defines a so-called roll angle of the laser emission device.
- the at least one laser emission device can be rotated at least about a second axis using the positioning device. If the at least one laser emission device sends, for example, a laser line onto the projection surface, the alignment of the laser line can be changed in a further degree of freedom by rotating the at least one laser emission device around the second axis. The rotation can also be limited to a given angular range.
- the first axis and the second axis are substantially orthogonal to one another. “Essentially orthogonal” is to be understood in particular to mean that the two axes have a maximum deviation from an orthogonal arrangement that is less than 15%, in particular less than 10%, in particular less than 5%.
- the rotation about the second axis can define a so-called pitch angle (also: pitch angle or elevation angle or vertical angle or elevation angle) of the at least one laser emission device and thus the emission direction. If this pitch angle changes, then consequently a height (also: elevation or altitude), ie a vertical position, of the laser marking emitted onto the projection surface changes.
- the at least one laser emission device can be rotated at least about a third axis using the positioning device.
- the alignment of the laser line can be changed again with a further degree of freedom by rotating the at least one laser emission device around the third axis.
- the rotation can also be limited to a given angular range.
- the second axis and the third axis are substantially orthogonal to one another.
- the rotation about the third axis can define a so-called yaw angle (also: azimuthal angle or horizontal angle or yaw angle) of the at least one laser emission device and thus the emission direction. If this yaw angle changes, a horizontal direction (also: azimuth), i.e. a horizontal position, of the laser marking emitted on the projection surface changes.
- the three axes span a Cartesian coordinate system.
- the positioning device advantageously enables the at least one laser emission device to be freely aligned in a plurality of degrees of freedom, in particular in at least 3 straight lines of freedom.
- the positioning device has a first positioning element, in particular a roll positioning element, for rotating the at least one laser emission device about the first axis.
- the positioning device has a second position for rotating the at least one laser emission device about the second axis.
- tioning element in particular a pitch positioning element.
- the positioning device has a third positioning element, in particular a yaw positioning element, for rotating the at least one laser emission device about the third axis.
- a positioning element is to be understood as meaning, in particular, a device or a mechanism of the positioning device which is used to actively adjust or change the alignment of the at least one laser emission device.
- the alignment of the at least one laser emission device can be changed by means of the positioning elements until a desired target alignment of the at least one laser emission device is achieved.
- the first positioning element is used to actively align the at least one laser emission device around the first axis
- the second positioning element is used to actively align the at least one laser emission device around the second axis
- the third positioning element is used to actively align the at least a laser emitter around the third axis.
- At least one of the positioning elements comprises an electromechanical actuator.
- all positioning elements i.e. the first positioning element and the second positioning element and the third positioning element, comprise an electromechanical actuator for generating a movement for aligning the at least one laser emission device.
- An electromechanical actuator for example, an electric motor, in particular a servomotor, and / or a piezo element is conceivable.
- An electromechanical actuator is particularly suitable for performing an automated alignment of the at least one laser emission device in accordance with the target alignment.
- the positioning elements are controlled by the control device of the laser leveling device, in particular regulated. In particular, a “self-leveling” laser leveling device can be specified in this way.
- At least one of the positioning elements is made manually, in particular mechanically, operable.
- “Manually operable” is to be understood in particular as meaning that a user of the laser leveling device can carry out a manual alignment of the at least one laser emission device using the positioning element.
- a positioning element is implemented as a mechanical adjusting screw, whereby by turning the adjusting screw - in particular in addition to a motorized actuation by an electromechanical actuator - an alignment of the at least one laser emission device is changed manually and thus a target alignment tion can be achieved.
- the laser leveling device has an output device, by means of which information on an actuation of the first positioning element and / or the second positioning element and / or the third positioning element to be carried out - to achieve the target alignment a user can be output.
- An “output device” should be understood to mean a means that is provided to output at least one item of changing information acoustically, visually and / or tactilely to a user.
- the output can be implemented, for example, by means of a screen, in particular a touch-sensitive screen. Alternatively or additionally, it is conceivable that information or results to be output are also output to a data processing system.
- the latter includes at least an output of information to an external device such as a smartphone, a tablet PC, a PC and to another external data device that appears useful to a person skilled in the art and is connected to the laser leveling device via a data communication interface.
- the output device can be accommodated directly in the housing of the laser leveling device and can also be supplemented via an external output device.
- the user is able to actuate the positioning elements in such a way that the target alignment of the at least one laser emission device is obtained.
- further information can be output by means of the output device, for example a warning if a laser line emitted onto the projection surface is not “in the water”.
- the laser leveling device has an input device, by means of which a user can specify an angle of inclination that the, in particular one-dimensional, laser marking should have on the projection surface, the control device being set up to set the target alignment to calculate the at least one laser emission device in such a way that the laser marking can be emitted, in particular is emitted, at the predetermined pitch angle.
- the angle of inclination can be specified with respect to a reference external to the device, for example the direction of gravitation (vertical) or the horizon (horizontal). If no such information is entered by the user, it is conceivable that the laser leveling device automatically sets or controls a predefined angle of inclination, for example 0 ° or 90 °.
- An “input device” should be understood to mean a means that is provided to provide at least one piece of information acoustically, visually and / or tactilely from the user to the laser leveling device.
- the input can be implemented, for example, by means of a touch-sensitive screen and / or a keyboard and / or other operating elements.
- the input device can serve to switch the emission of the laser marking on and off.
- the laser leveling device has a device for checking an alignment of the laser leveling device, in particular the at least one laser emission device, with respect to a reference external to the device.
- the device-external reference can in particular be given by the direction of gravity and / or the earth's magnetic field.
- the device for checking the alignment can be implemented, for example, by a level (spirit level) and / or an inclination sensor, in particular an acceleration sensor and / or a rotation rate sensor and / or a magnetic field sensor and / or an electro-optical level and / or an electrolytically operating sensor
- the inclination sensor outputs an alignment of the laser leveling device to the user by means of the output device.
- Such can it can be achieved in a particularly simple manner that a defined reference of the at least one laser emission device to a reference external to the device can be established at least indirectly.
- the control device is set up in such a way that the calculation of the target alignment of the at least one laser emission device is based at least on the determined actual alignment with respect to the projection surface, the calculation taking place on the assumption that the Laser leveling device, in particular the laser emission device, has already been aligned (“pre-leveled”) with respect to the device-external reference by means of the device for checking an alignment.
- the laser marking is implemented, for example, by a laser line, it can be sufficient that the laser line on the projection surface horizontally (perpendicular to the direction of gravitation) or vertically (in the direction of gravitation) or at a defined angle of inclination, in particular specified by the user (with regard to the reference external to the device ) is aligned.
- the “device-external reference” is to be understood in particular as a reference variable that is external and independent of the laser leveling device, in particular a direction.
- the device-external reference can be implemented, for example, as the gravitational direction and / or as the north direction of the earth's magnetic field.
- the external reference can also be freely definable by the user of the laser leveling device. For example, when using the laser leveling device in the interior of a building, starting from a slightly sloping wall, the external reference can be defined by the "top-bottom" direction of this wall - that is, a vertical is given by this slightly sloping wall (in other words : the alignment of the slightly sloping wall replaces the plumb direction).
- the laser leveling device has a second sensor device for determining an actual alignment of the at least one laser emission device with respect to at least one device-external reference a laser emission device based on the determined actual alignment of the at least one laser emission device Direction with respect to the device-external reference and the determined actual alignment of the at least one laser emission device with respect to the projection surface is set up.
- the second sensor device is used to determine an actual alignment of the at least one laser emission device with respect to at least one reference external to the device.
- the second sensor device also serves to determine an actual alignment of the at least one laser marking, in particular laser line, emitted by means of the laser emission device, with regard to the reference external to the device.
- the laser leveling device can therefore be further simplified and automated in its use.
- the laser leveling device can also be used on an uneven surface and / or hand-held.
- a rotation of the at least one laser emission device about the second axis defines an elevation angle or vertical angle of the emission direction with respect to the at least one device-external reference (for example with respect to the gravitational direction, see below) or that a rotation of the at least one laser emission device around the third axis defines an azimuthal angle (horizon angle) of the emission direction with respect to the at least one device-external reference (for example with respect to the earth's magnetic field, see below).
- the second sensor device is set up to determine the actual alignment of the at least one laser emission device with respect to the direction of gravity and / or with respect to the geomagnetic field as a reference external to the device. In this way it can be achieved that a defined reference of the at least one laser emission device to a vertical or horizontal and / or a spatial direction (compass direction) can be established. It can also be achieved in this way that the, in particular one-dimensional, laser marking is emitted on the projection surface in a leveled manner with respect to the reference external to the device.
- the laser marking is implemented, for example, by a laser line
- the laser line is aligned on the projection surface horizontally (perpendicular to the direction of gravity) or vertically (in the direction of gravity) or at a defined angle of inclination, in particular specified by the user (with respect to the direction of gravity).
- laser markings can be generated in this way, in particular projected onto the projection surface, which show one of the orientation of floors, ceilings, walls or other objects, for example the vertical wall of a cabinet, but in particular also one of the orientation of a housing of the Laser level, provide independent reference.
- the second sensor device comprises at least one inclination sensor, in particular an acceleration sensor and / or a rotation rate sensor and / or a magnetic field sensor and / or an electro-optical level and / or an electrolytically operating sensor.
- inclination sensor in particular an acceleration sensor and / or a rotation rate sensor and / or a magnetic field sensor and / or an electro-optical level and / or an electrolytically operating sensor.
- the laser leveling device comprises
- At least one further laser emission device for emitting a further, in particular one-dimensional, laser marking, in particular a laser line, in a further emission direction onto the projection surface
- control device is further set up to calculate a further target alignment of the at least one further laser emission device based on the determined further actual alignment with respect to the projection surface, and A further positioning device for aligning the at least one further laser emission device according to the further target alignment.
- a laser leveling device can be specified which can emit a plurality of laser markings onto the projection surface.
- parallel laser lines with a defined, in particular predeterminable, distance from one another and / or orthogonally intersecting laser lines (laser cross) and / or laser lines which intersect at a defined, in particular predeterminable, angle can be emitted onto the projection surface.
- each further positioning device also has three axes about which each further laser emission device can be rotated.
- each further positioning device also has positioning elements.
- each further laser emission device can also be rotated about a further first axis using the respective further positioning device.
- the respective further first axis can run parallel or collinear to the emission direction of the respective further laser emission device.
- a respective further second axis of the respective further positioning device - for example for setting the pitch angle of the respective further laser emission device - can be identical to the second axis of the (first) positioning device.
- second positioning elements of the (first) positioning device and each further positioning device can be identical, i.e. the same component.
- a respective further third axis of the respective further positioning device - for example for setting the yaw angle of the respective further laser emission device - can be identical to the third axis of the (first) positioning device.
- third positioning elements of the (first) positioning device and each further positioning device can be identical, i.e. the same component.
- the laser leveling device has two laser emission devices for emitting two one-dimensional laser markings in the form of laser lines.
- the laser leveling device has two positioning devices for aligning the respective laser emission devices according to a respective target alignment.
- the first positioning device comprises a first (Roll) positioning element, a second (pitch) positioning element and a third (yaw) positioning element, so that the first laser emission device can be rotated around three axes in 3 degrees of freedom.
- the second positioning device also includes a first (rolling) positioning element, a second (pitch) positioning element and a third (yaw) positioning element, so that the second laser emission device can also be rotated around three axes in 3 degrees of freedom.
- all positioning elements for the respective positioning device are provided as separate components (ie 6 positioning elements).
- the third (yaw) positioning element is implemented as an identical positioning element (common component) for both positioning devices (ie 5 positioning elements).
- the second (pitch) positioning element is also implemented as an identical positioning element (common component) for both positioning devices (ie 4 positioning elements).
- an actual alignment of the two laser emission devices with respect to the projection surface can be determined indirectly by initially establishing an actual alignment of the laser leveling device (for example the housing, but at least the first sensor device) with respect to the projection surface is detected and the actual alignment of the two laser emission devices is then calculated from a position of the positioning elements (here implemented as stepper motors, for example).
- each laser emission device has its own assigned first sensor device for determining the respective actual alignment.
- the control device is set up to calculate the two target orientations of the two laser emission devices based on the respective actual orientations with respect to the projection surface.
- a color of a respective laser marking distinguishable from a color of a further laser marking so that the laser markings are in principle distinguishable for a user of the laser leveling device.
- a vertical laser line can be selected in red
- a horizontal laser line is selected in green.
- the laser markings have distinguishable patterns, for example distinguishable dashed lines (short lines, long lines, dash-dot sequences, dots, etc. And / or distinguishable emission forms such as flashing quickly, flashing slowly, changing intensity, continuously lit or the like.
- the laser leveling device comprises at least one further second sensor device for determining a further actual alignment of the at least one further laser emission device with respect to at least the device external reference
- the control device also for calculating the further target alignment of the at least one further laser emission device is set up based on the determined further actual alignment with respect to the ge device-external reference and the determined further actual alignment with respect to the projection surface.
- Another aspect of the invention relates to a method for leveling using the laser leveling device according to the invention.
- the process comprises at least the following process steps:
- an actual alignment of the at least one laser emission device with respect to at least one device-external reference is determined using at least one second sensor device, the target alignment of the at least one laser emission device based on the determined actual - Alignment of the at least one laser emission device with respect to the projection surface and based on the determined actual alignment of the at least one laser emission device with respect to the device-external reference is calculated using the control device.
- the at least one laser emission device is aligned on the projection surface by rotating the at least one laser emission device about a second axis or about a second axis and a third axis.
- the rotation about the second axis defines the pitch angle in particular
- the rotation about the third axis defines the yaw angle in particular.
- an output device in particular an output device of the laser leveling device, provides a user of the laser leveling device with information on an alignment to be carried out - in particular rotation, of at least one laser level - to achieve the target alignment. Emission device issued.
- a user of the laser leveling device uses an input device of the laser leveling device to specify an angle of inclination that the, in particular one-dimensional, laser marking should have on the projection surface - Alignment of the laser Emissi onsvorraum is calculated in such a way that the laser marking is emitted at the given pitch angle.
- the slope angle can be specified in particular with respect to a reference external to the device - as described, for example, the direction of gravity and / or the geomagnetic field.
- Figure 1 is a schematic view of an embodiment of the fiction, contemporary laser leveling device
- FIG. 2 is a schematic view of an alternative embodiment of the laser leveling device according to the invention.
- FIG. 3 shows a schematic view of a laser leveling device according to the invention in an exemplary application
- FIG. 4 shows a schematic view of a laser leveling device according to the invention in a second exemplary application
- FIG. 5 shows a schematic view of a laser leveling device according to the invention in a third exemplary application
- FIG. 6 shows a schematic view of a laser leveling device according to the invention in a fourth exemplary application
- FIG. 7 shows a schematic view of an alternative exemplary embodiment of the laser leveling device according to the invention (a) and three detailed views of the first sensor device (b-e);
- FIG. 8 is a schematic view of an alternative embodiment of the laser leveling device according to the invention.
- FIG. 9 shows a process diagram of an exemplary embodiment of the process according to the invention.
- FIG. 1 shows a schematic view of a first exemplary embodiment of the laser leveling device 10 according to the invention.
- the laser leveling device 10 is used to generate two optical laser markings 16, 16a, 16b in the frame of leveling, aligning, measuring and / or marking tasks (see FIG. 3a).
- the laser leveling device 10 comprises a base plate 12, which here is part of a housing of the laser leveling device 10 (not shown further).
- the base plate 12 is used to receive and fasten a first laser emission device 14, 14a for emitting a first one-dimensional laser marking 16, 16a, here a laser line, in a first emission direction 18, 18a on a projection surface 20 (not shown here, but compare Figure 3a, 4a, 5a).
- the first laser emission device 14, 14a comprises a laser diode as a laser light source for generating and emitting laser radiation and a cylinder lens as an optical system for converting the laser radiation into a laser plane 26 (laser light source and cylinder lens are not shown here, but are known to a person skilled in the art ).
- the first laser emission device 14, 14a is movably mounted on a first positioning device 22, 22a, the first positioning device 22, 22a serving to align the first laser emission device 14, 14a according to a first target alignment.
- the base plate 12 serves to accommodate a second laser emission device 14, 14b for emitting a second one-dimensional laser marking 16, 16b, here also a laser line, in a second emission direction 18, 18b onto the projection surface 20.
- the second laser emission device 14 , 14b is movably mounted on a second positioning device 22, 22b, the second positioning device 22, 22b serving to align the second laser emission device 14, 14b according to a second target alignment.
- the first and second positioning devices 22, 22a, 22b are set up to align or position the first and second laser emission devices 14, 14a, 14b, ie the laser light source and the cylindrical lens, according to a respective target alignment.
- the first laser emission device 14, 14a can be rotated about a first axis 30, 30a of the first positioning device 22, 22a using a first positioning element 36, 36a of the first positioning device 22, 22a.
- the first laser emission device 14, 14a can about a second axis 32, 32a of the first positioning device 22, 22a be rotated using a second positioning element 38, 38a of the first positioning device 22, 22a.
- the first laser emission device 14, 14a can be rotated about a third axis 34, 34a of the first positioning device 22, 22a using a third positioning element 40, 40a of the first positioning device 22, 22a.
- the first axis 30, 30a, the second axis 32, 32a and the third axis 34, 34a of the first Positioniervorrich device 22, 22a are each perpendicular to each other and form a Cartesian coordinate system.
- the second laser emission device 14, 14b can also be rotated about a first axis 30, 30b of the second positioning device 22, 22b using a first positioning element 36, 36b of the second positioning device 22, 22b.
- the second laser emission device 14, 14b can be rotated about a second axis 32, 32b of the second positioning device 22, 22b using a second positioning element 38, 38b of the second positioning device 22, 22b.
- the second laser emission device 14, 14b can also be rotated about a third axis 34, 34b of the second positioning device 22, 22b using a third positioning element 40, 40b of the second positioning device 22, 22b.
- the first axis 30, 30b, the second axis 32, 32b and the third axis 34, 34b of the second positioning device 22, 22b are also perpendicular to one another and form a Cartesian coordinate system.
- the positioning elements 36, 36a, 36b, 38, 38a, 38b, 40, 40a, 40b of both positioning devices 22, 22a, 22b are each implemented as actuators in the form of controllable servo motors (stepper motors) (not shown here).
- stepper motors controllable servo motors
- the rotation about each of the aforementioned axes 30, 30a, 30b, 32, 32a, 32b, 34, 34a, 34b is unlimited (i.e. multiple rotations are possible in principle).
- the laser leveling device 10 has a first sensor device 24 for determining an actual alignment of the first laser emission device 14, 14a and the second laser emission device 14, 14b with respect to the projection surface 20.
- the first sensor device 24 comprises a stereo camera 28, comprising two cameras 28a, 28b which are arranged at a distance from one another and which work in the visual spectrum here.
- the two cameras 28a, 28b allow under synchronous or essentially simultaneous recording of images of the scenery from (slightly) different directions or perspectives due to the design, the simultaneous recording of stereoscopic half-images required for 3D images.
- stereo cameras 28 are known to the person skilled in the art.
- the first sensor device 24 is set up to determine the actual alignment of the first laser emission device 14, 14a and the actual alignment of the second laser emission device 14, 14b with respect to the projection surface 20 based on image data from the stereo camera 28. In this case, the actual alignment of the base plate 12 carrying the stereo camera 28 (in particular of the housing) with respect to the projection surface 20 is actually determined. Using the positions (e.g.
- the actual alignment of the first laser emission device 14, 14a or the actual alignment of the second laser emission device 14, 14b with respect to the projection surface 20 can then be calculated indirectly.
- the first sensor device 24 (alternatively also the control device of the laser leveling device 10) is set up to carry out this calculation.
- the laser leveling device 10 has a second sensor device 44 for determining an actual alignment of the first laser emission device 14, 14a and an actual alignment of the second laser emission device 14, 14b with respect to the gravitational direction 46a as a device-external reference 46.
- the second sensor device 44 comprises an inclination sensor, here in the form of an acceleration sensor and a rotation rate sensor (not shown in more detail).
- the actual alignment of the base plate 12 carrying the second sensor device 44 (in particular of the housing) with respect to the device external reference 46 is actually determined.
- the second sensor device 44 (alternatively also the control device of the laser leveling device 10) is set up for performing this calculation.
- the laser leveling device 10 also includes a control device 42.
- the control device 42 is used to control, in particular to operate, the laser leveling device 10.
- the control device 42 has a processor, a memory and at least one operating program with calculation routines and control routines .
- the control device 42 is connected to the other components of the laser leveling device 10, here with the first sensor device 24, the second sensor device 44, the first positioning device 22, 22a - in particular with the servomotors of the positioning elements 36, 36a, 38, 38a, 40 , 40a of the first positioning device 22, 22a -, the second positioning device 22, 22b - in particular with the servomotors of the positioning elements 36, 36b, 38, 38b, 40, 40b of the second positioning device 22, 22b - as well as signaling with the laser light source connected to their control.
- the control device 42 is specifically set up to calculate a target alignment of the first laser emission device 14, 14a based on the actual alignment of the first laser emission device 14, 14a with respect to the projection surface 20 and with respect to the device-external reference 46, as well To calculate a target alignment of the second laser emission device 14, 14b based on the actual alignment of the second laser emission device 14, 14b with respect to the projection surface 20 and with respect to the external reference 46. Furthermore, the control device 42 is set up to control the servomotors in a targeted manner in such a way that the first laser emission device 14, 14a and the second laser emission device 14, 14b assume their respective target orientations.
- FIG 2 shows a schematic view of a first alternativeselfsbei game of the laser leveling device 10 according to the invention.
- the laser leveling device 10 comprises a base plate 12, which is part of a housing of the laser leveling device 10, not shown here.
- the base plate 12 serves to receive and fasten a first laser emission device 14, 14a for emitting a first one-dimensional laser marking 16, 16a, here a laser line, in a first emission direction 18, 18a onto a projection surface 20 (not here shown in more detail, but compare Figure 3a).
- the first laser emission device 14, 14a comprises a laser diode as a laser light source for generating and emitting laser radiation and a cylindrical lens as an optical system for converting the laser radiation into a laser plane 26 (laser light source and cylinder lens are not shown here).
- the first laser emission device 14, 14a is movably mounted on a first positioning device 22, 22a, the first positioning device 22, 22a serving to align the first laser emission device 14, 14a according to a first target alignment.
- the base plate 12 is used to accommodate a second laser Emissi onsvorraum 14, 14b to emit a second one-dimensional laser marking 16, 16b, here also a laser line, in a second emission direction 18, 18b on the projection surface 20.
- the second laser emission device 14, 14b is movably mounted on a second positioning device 22, 22b, where the second positioning device 22, 22b is used to align the second laser emission device 14, 14b according to a second target alignment.
- the first and second positioning devices 22, 22a, 22b are designed to align the first laser emission device 14, 14a and the second laser emission device 14, 14b, ie the laser light source and the cylinder lens, according to a respective target alignment or to position.
- the first laser emission device 14, 14a can be rotated about a first axis 30, 30a of the first positioning device 22, 22a using a first positioning element 36, 36a of the first positioning device 22, 22a.
- the first laser emission device 14, 14a can be rotated about a second axis 32, 32a of the first positioning device 22, 22a using a second positioning element 38, 38a of the first positioning device 22, 22a.
- the first laser emission device 14, 14a can be rotated about a third axis 34, 34a of the first positioning device 22, 22a using a third positioning element 40, 40a of the first positioning device 22, 22a.
- the first axis 30, 30a, the second axis 32, 32a and the third axis 34, 34a of the first positioning device 22, 22a are each perpendicular to one another and form a Cartesian coordinate system.
- the second laser emission device 14, 14b about a first axis 30, 30b of the second Positioniervor device 22, 22b using a first positioning element 36, 36b of the second positioning device 22, 22b are rotated.
- the second laser emission device 14, 14b can be rotated about a second axis 32, 32b of the second positioning device 22, 22b using a second positioning element 38, 38b of the second positioning device 22, 22b.
- the second laser emission device 14, 14b can also be rotated about a third axis 34, 34b of the second positioning device 22, 22b using a third positioning element 40, 40b of the second positioning device 22, 22b.
- the first axis 30, 30b, the second axis 32, 32b and the third axis 34, 34b of the second positioning device 22, 22b are also each perpendicular to one another and form a Cartesian coordinate system.
- the first and second positioning elements 36, 36a, 36b, 38, 38a, 38b of both Po sitioniervoriquesen 22, 22a, 22b are each implemented as actuators in the form of controllable servomotors (not shown here).
- the rotation about the first axis 30, 30a, 30b and the second axis 32, 32a, 32b is unlimited (i.e. multiple rotations are possible in principle).
- the third Positionierele elements 40, 40a, 40b of the two positioning devices 22, 22a, 22b are implemented as one component.
- the third positioning element 40, 40a, 40b can be operated manually, i.e. rotated by hand, so that a user of the laser leveling device 10 can manually rotate the base plate 12 together with the components carried.
- the rotation about the third axis 34, 34a, 34b is unlimited (i.e. multiple rotations are possible in principle).
- the third positioning element 40, 40a, 40b is provided to be arranged on a base, for example a table or a tripod or the like.
- the leveling device 10 has a device 50 for checking the alignment of the laser leveling device 10 with respect to the direction of gravity 46a as an external reference 46 in the form of a level.
- the user can arrange and align the laser leveling device 10 on the base (not shown here) in such a way that the laser leveling device 10 and in particular the positioning devices 22, 22a, 22b and thus also the first laser emission device 14, 14a and the second laser emission device 14, 14b have a defined alignment with respect to the gravitational direction 46a.
- the laser leveling device 10 has a first sensor device 24 for determining an actual alignment of the first laser emission device 14, 14a and an actual alignment of the second laser emission device 14, 14b with respect to the projection surface 20.
- the first sensor device 24 comprises a spatially resolving time-of-flight distance sensor 48 for detecting spatially resolved distance measurements, the first sensor device 24 being set up to determine the actual alignment of the first laser emission device 14, 14a and 14 based on the spatially resolved distance measurements to determine the actual alignment of the second laser emission device 14, 14b with respect to the projection surface 20.
- the actual alignment of the base plate 12 (in particular of the housing) carrying the time-of-flight distance sensor 48 with respect to the projection surface 20 is determined.
- the actual alignment of the first laser emission device 14, 14a or the actual alignment of the second laser emission device 14, 14b with respect to the projection surface 20 can then be calculated indirectly.
- the first sensor device 24 (alternatively also the control device of the laser leveling device 10) is set up to carry out this calculation.
- the laser leveling device 10 can already be aligned by a user with respect to the gravitational direction 46a by means of the level indicator, there is no second sensor device 44 for determining an actual alignment of the first laser emission device 14, 14a and an actual alignment of the in this exemplary embodiment second laser emission device 14, 14b with respect to the gravitational direction 46a is necessary.
- the laser leveling device 10 also includes a control device 42.
- the control device 42 is used to control, in particular to operate, the laser leveling device 10.
- the control device 42 has a processor, a memory and at least one operating program with calculation routines and control routines .
- the control device 42 is with the further components of the laser leveling device 10, here with the first sensor device 24, the first positioning device 22, 22a - in particular with the servomotors of the positioning elements 36, 36a, 38, 38a, the first positioning device 22, 22a -, the second positioning device 22 , 22b - in particular with the servomotors of the positioning elements 36, 36b, 38, 38b, the second positioning device 22, 22b - as well as with the laser light source for their control.
- the control device 42 is specially designed to calculate a target alignment of the first laser emission device 14, 14a based on the actual alignment of the first laser emission device 14, 14a with respect to the projection surface 20, as well as a target alignment of the second laser emission device 14, 14a.
- Emission device 14, 14b based on the actual alignment of the second laser emission device 14, 14b with respect to the projection surface 20 to calculate.
- control device 42 is set up to control the servomotors of the first positioning device 22, 22a - in particular the servomotors of the positioning elements 36, 36a, 38, 38a - and the servomotors of the second positioning device 22, 22b - in particular the servomotors of the positioning elements 36, 36b , 38, 38b - to be controlled in such a way that the first laser emission device 14, 14a and the second laser emission device 14, 14b assume their respective target orientations.
- the laser markings 16 are implemented as one-dimensional laser lines 16a, 16b.
- the laser lines 16a, 16b are each implemented as a continuous line in red.
- FIG. 3 shows a first application of the laser leveling device 10 according to the invention, as it was presented in FIG. 1 or 2 (shown here without a base plate 12).
- the first laser emission device 14, 14a and the second laser emission device 14, 14b are aligned by means of the first positioning device 22, 22a and the second positioning device 22, 22b ( Figure 3b), so that two horizontal laser markings on the projection surface 20 gen 16 appear in the form of two laser lines 16a, 16b ( Figure 3a).
- the two laser markings 16 are orthogonal to the external reference 46, ie to the direction of gravity 46a.
- 1 or 2 can also have an input device (not shown here), which is implemented here in the form of a data communication interface for receiving information entered by means of an external data device (for example a smartphone).
- an input device for example, a distance d at which the two laser lines 16a, 16b appear on the projection surface 20 can be specified by a user of the laser leveling device 10.
- the control device 42 is also set up to calculate the target alignment of the first laser emission device 14, 14a and the target alignment of the second laser emission device 14, 14b such that the laser lines 16a, 16b as parallel lines with the predetermined Distance d appear on the projection surface 20.
- FIG. 4 shows a second application of the laser leveling device 10 according to the invention, as it was presented in FIGS. 1 to 3 (shown here without a base plate 12).
- the first laser emission device 14, 14a and the second laser emission device 14, 14b are aligned by means of the first positioning device 22, 22a and the second positioning device 22, 22b (FIG Lasermar markings 16 appear in the form of two laser lines 16a, 16b ( Figure 4a).
- the two laser markings 16 have an inclination angle 52 to the device-external reference 46, ie to the gravitational direction 46a.
- the laser leveling device 10 shown in Figures 1 or 2 can also have an input device here, for example in the form of operating elements (not shown here) for inputting the angle of incline 52 two laser lines 16a, 16b appear on the projection surface, can be specified by the user of the laser leveling device 10.
- the control device 42 is set up to calculate the target alignment of the first laser emission device 14, 14a and the target alignment of the second laser emission device 14, 14b in such a way that the laser lines 16a, 16b are parallel lines with the predetermined distance d and appear on the projection surface 20 at the angle of inclination 52 with respect to the gravitational direction 46a.
- FIG. 5 shows a third application of the laser leveling device 10 according to the invention, as was presented in FIGS.
- the first laser emission device 14, 14a and the second laser emission device 14, 14b are aligned by means of the first positioning device 22, 22a and the second positioning device 22, 22b (FIG running and intersecting laser markings 16 in the form of two laser lines 16a, 16b appear (FIG. 5a).
- a first of the two laser markings, laser line 16a has a predetermined inclination angle 52 to the device-external reference 46, ie to the gravitational direction 46a.
- the second laser marking 16, laser line 16b has a predetermined angle Q to the first laser line 16a. Both the incline angle 52 and the angle Q were entered by a user using the input device and were thus specified.
- the control device 42 is set up to calculate the target alignment of the first laser emission device 14, 14a and the target alignment of the second laser emission device 14, 14b in such a way that the laser lines 16a, 16b with the corresponding cutting angle Q as well as below predetermined inclination angle 52 with respect to the gravitational direction 46a appear on the projection surface 20.
- FIG. 6 shows a fourth application of the laser leveling device 10 according to the invention, as was presented in FIGS. 1 to 5 (shown here without a base plate 12).
- the first laser emission device 14, 14a and the second laser emission device 14, 14b are aligned by means of the first positioning device 22, 22a and the second positioning device 22, 22b (FIG Running laser markings 16 in the form of two laser lines 16a, 16b appear (FIG. 6a).
- a first of the two laser markings, laser line 16a runs orthogonally to the device-external reference 46, ie to the gravitational direction 46a.
- the second laser marking 16, laser line 16b has an angle of 90 ° to the first laser line 16a and thus runs parallel to the reference 46 external to the device, ie to the gravitational direction 46a. Consequently, the laser lines 16a, 16b form a laser cross on the projection surface 20.
- the control device 42 is set up to calculate the target alignment of the first laser emission device 14, 14a and the target alignment of the second laser emission device 14, 14b in this way , that the laser lines 16a, 16b appear on the projection surface 20 with a corresponding right cutting angle as well as with a predetermined orientation with respect to the gravitational direction 46a.
- FIGS. 7a and 7b show a further exemplary embodiment in which the laser leveling device 10 of FIG. 1 is modified.
- the control device 42 and the second sensor device 44 are not shown for the sake of clarity.
- the laser leveling device 10 shown in FIG. 7a has a different first sensor device 24 than the exemplary embodiments in FIGS. 1 and 2 for determining an actual alignment of the first laser emission device 14, 14a and an actual alignment of the second laser emission device 14, 14b with respect to the projection surface 20.
- the first sensor device 24 comprises a distance sensor 54 for contactless distance measurement in a distance measuring direction 56.
- the distance sensor 54 is implemented as a laser range finder, here a SPAD laser range finder.
- the distance sensor 54 is rotatably mounted with respect to an axis of rotation 58.
- the distance measuring direction 56 forms an angle 60 (f) of 20 ° to the axis of rotation 58.
- the first sensor device 24 is directed to this, based on three distance measurements in different distance measuring directions 56a, 56b, 56c, ie with different relative arrangements of the distance sensor 54 to the axis of rotation 58, the actual alignment of the first laser emission device 14, 14a and the actual - To determine the alignment of the second laser emission device 14, 14b with respect to the projection surface 20.
- the actual alignment can also be determined indirectly by calculation (cf. statements on the stereo camera).
- a relative alignment of the first sensor device 24 with respect to the projection surface 20 is calculated. As illustrated in FIG.
- two vectors 64a, 64b can be determined, which are located in the projection surface 20.
- a respective vector 64a, 64b connects two target points 62.
- vector 64a is defined between target points 62 of distance measurements A1, A2, while vector 64b is defined between target points 62 of distance measurements A2, A3.
- a Cartesian coordinate system 66 can then be introduced in which the z-axis is collinear with the axis of rotation 58, while the x-axis and the y-axis are perpendicular to one another and perpendicular run to the axis of rotation 58.
- the following system of equations can be set up, which allows the specification of the vector coordinates with respect to the defined coordinate system 66. The following apply:
- a normal vector 68 (cf. FIG. 7b) of the projection surface 20 can then be calculated by calculating the vector cross product.
- the actual alignment - here the introduced coordinate system 66 and thus the first sensor device 24 - can be calculated for the projection surface 20.
- FIG. 7 shows a schematic view of a further exemplary embodiment of the laser leveling device 10 according to the invention.
- the laser leveling device 10 is implemented here as a hand-held laser leveling device 10.
- the laser leveling device 10 comprises a housing 68 which is used to accommodate a laser emission device 14, 14c for emitting a one-dimensional laser marking 16, here also a laser line 16c, in an emission direction 18 onto a projection surface 20.
- the housing 68 also houses a laser light source for generating and emitting laser radiation (not shown in detail here).
- the laser emission device 14, 14c comprises a cylinder lens as an optical system for converting the laser radiation emitted by the laser light source into a laser plane 26 (the cylinder lens is not shown in detail here).
- the Zylin derlinse is arranged in a front housing part 70 of the housing 68.
- the front housing part 70 can be rotated about a first axis 30, 30c with respect to the rest of the housing part and is therefore movably supported.
- the front housing part 70 represents a positioning device 22, 22c in which the cylinder lens is mounted as a laser emission device 14, 14c.
- the positioning device 22, 22c is used to align the laser emission device 14, 14c according to a target alignment.
- the front housing part 70 also represents a first (rolling) positioning element 36, 36c of the positioning device 22, 22c, which a user of the laser leveling device 10 can manually rotate freely with his hand (see arrows).
- the first axis 30, 30c runs collinearly with the emission direction 18, 18c of the first laser emission device 14, 14c.
- the laser leveling device 10 has a first sensor device 24 for determining an actual alignment of the laser emission device 14, 14c with respect to the projection surface 20.
- the first sensor device 24 comprises a spatially resolving time-of-flight distance sensor (arranged here on the side of the front housing part 70 facing the projection surface 20) for recording spatially resolved distance measurements, the first sensor device 24 being set up based on to determine the actual alignment of the laser emission device 14, 14c with respect to the projection surface 20 using the spatially resolved distance measurements.
- the actual alignment of the front housing part 70 (in particular of the housing) carrying the time-of-flight distance sensor 48 with respect to the projection surface 20 is determined. Since the cylinder lens is used as a laser Emission device 14, 14c has a fixed, construction-related reference to the first sensor device 24, the actual alignment of the laser emission device 14, 14c with respect to the projection surface 20 can consequently also be determined.
- the laser leveling device 10 has a second sensor device 44 for determining an actual alignment of the laser emission device 14, 14c with respect to the gravitational direction 46a as a device-external reference 46 (not shown in detail here).
- the second sensor device 44 comprises an inclination sensor, here in the form of an acceleration sensor and a rotation rate sensor.
- the actual orientation of the front housing part 70 accommodating the second sensor device 44 is determined with respect to the reference 46 external to the device. Consequently, the actual alignment of the laser emission device 14, 14c with respect to the device-external reference 46 is also determined.
- a control device 42 arranged in the housing 68 (not shown in detail here) a target alignment of the laser emission device 14, 14c, in particular the positioning device 22, 22c - for example in the case of a horizontally aligned laser marking 16.
- the control device 42 is used to control, in particular the operation, of the laser leveling device 10.
- the control device 42 has a processor, a memory and at least one operating program with calculation routines and control routines.
- the control device 42 is signal-connected to the other components of the laser leveling device 10, here to the first sensor device 24, the second sensor device 44 and to the laser light source.
- the control device 42 is specifically designed to calculate a target alignment of the laser emission device 14, 14c based on the actual alignment of the first laser emission device 14, 14c with respect to the projection surface 20 and with respect to the reference 46 external to the device.
- an output device 72 here in the form of a screen assigned to the housing 70, information about a - for Achievement of the target alignment -to be carried out actuation of the positioning element 36, 36c are output to the user.
- the control device 42 is also set up to specifically control the output device 72 for outputting corresponding information such as, for example, “turn optics 10 ° to the right”.
- the laser leveling device 10 has a connection for a tripod thread on its rear side (not shown in detail here).
- FIG. 9 shows an exemplary embodiment of the method 100 according to the invention for leveling using a laser leveling device 10 according to the invention.
- the following embodiment relates, by way of example, to the laser leveling device 10 as shown in FIG.
- a user of the laser leveling device 10 aligns the at least two laser emission devices 14, 14a, 14b on the projection surface 20.
- the user first roughly positions the laser leveling device 10 in advance.
- the third positioning element 40, 40a, 40b and the second positioning element 38, 38a, 38b and / or by rotating the laser leveling device 10 a more precise alignment of the first laser emission devices 14, 14a and the second laser emission devices can be achieved 14, 14b take place in the direction of the projection surface 20.
- a second method step 104 the first sensor device 24 of the laser leveling device 10 determines an actual alignment of the first laser emission device 14, 14a with respect to the projection surface 20 and an actual alignment of the second laser emission device 14, 14b with respect to the projection surface 20. This takes place, for example, using the stereo camera 28, as was described for FIG. Furthermore, in this method step 104, an actual alignment of the first laser emission device 14, 14a with respect to a device-external reference 46 and an actual alignment of the second laser emission device 14, 14b with respect to the device-external reference 46 are determined using the second sensor device 44 .
- a target alignment of the first laser emission device 14, 14a is determined based on the determined actual alignment of the first laser emission device 14, 14a with respect to the projection surface 20 and based on the determined actual alignment of the first laser emission device device 14, 14a with respect to the device-external reference 46 is calculated by the control device 42. Furthermore, a target alignment of the second laser emission device 14, 14b is determined based on the determined actual alignment of the second laser emission device 14, 14b with respect to the projection surface 20 and based on the determined actual alignment of the second laser emission device 14, 14b is calculated by the control device 42 with respect to the device-external reference 46.
- the first laser emission device 14, 14a according to the target alignment of the first laser emission device 14, 14a by rotating the first laser emission device 14, 14a around the first axis 30, 30a, the second axis 32, 32a and / or the third axis 34, 34a using the positioning device 22, 22a, in particular using the first positioning element 36, 36a, the second positioning element 38, 38a or the third positioning element 40, 40a of the first positioning device 22, 22b tet.
- the second laser emission device 14, 14b according to the target alignment of the second laser emission device 14, 14b by rotating the second laser emission device 14, 14b about the first axis 30, 30b, the second axis 32, 32b and / or the third axis 34, 34b using the second positioning device 22, 22b, in particular using the first positioning element 36, 36b, the second positioning element 38, 38b and the third positioning element 40, 40b of the second positioning device 22, 22b, respectively.
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Abstract
Description
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| Application Number | Priority Date | Filing Date | Title |
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| DE102019219951.8A DE102019219951A1 (de) | 2019-12-18 | 2019-12-18 | Laser-Nivelliergerät und Verfahren zum Nivellieren |
| PCT/EP2020/083481 WO2021121895A1 (de) | 2019-12-18 | 2020-11-26 | Laser-nivelliergerät und verfahren zum nivellieren |
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| EP20815776.8A Pending EP4078084A1 (de) | 2019-12-18 | 2020-11-26 | Laser-nivelliergerät und verfahren zum nivellieren |
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| US (1) | US20230045402A1 (de) |
| EP (1) | EP4078084A1 (de) |
| CN (1) | CN115066590B (de) |
| DE (1) | DE102019219951A1 (de) |
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| WO2020215202A1 (zh) * | 2019-04-23 | 2020-10-29 | 罗伯特·博世有限公司 | 激光水平仪及其使用方法 |
| CN114295109A (zh) * | 2021-11-16 | 2022-04-08 | 深圳供电局有限公司 | 激光定位装置及方法 |
| CN222234115U (zh) * | 2021-12-29 | 2024-12-24 | 米沃奇电动工具公司 | 激光产生装置 |
| GB2635758A (en) * | 2023-11-25 | 2025-05-28 | Kirk Cornell | Electronic accessory for laser levels to confirm perpendicular projection |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE4210824A1 (de) | 1992-04-01 | 1993-10-07 | Wolf Woco & Co Franz J | Elastisches Kreuzgelenk |
| DE112006004097C5 (de) * | 2006-11-03 | 2017-11-02 | Trimble Kaiserslautern Gmbh | Winkelmessgerät |
| DE102007039343A1 (de) | 2007-08-21 | 2009-02-26 | Robert Bosch Gmbh | Laservorrichtung und System mit einer Laservorrichtung |
| DE102007039340A1 (de) | 2007-08-21 | 2009-02-26 | Robert Bosch Gmbh | Pendellaservorrichtung |
| DE102007049123A1 (de) * | 2007-10-12 | 2009-04-16 | Robert Bosch Gmbh | Markier- und/oder Nivelliervorrichtung sowie Verfahren |
| DE102009016169B4 (de) | 2009-04-03 | 2015-10-01 | Schaeffler Technologies AG & Co. KG | Kreuzgelenk |
| EP2458326A1 (de) * | 2010-11-25 | 2012-05-30 | Leica Geosystems AG | Rotationslaser |
| DE202011004651U1 (de) | 2011-03-31 | 2011-11-02 | Robert Bosch Gmbh | Optische Nivelliervorrichtung |
| EP2789973B1 (de) * | 2013-04-12 | 2017-11-22 | Hexagon Technology Center GmbH | Rotationslaser mit durch Aktuatoren gezielt verformbarer Linse |
| US9330568B2 (en) * | 2013-10-30 | 2016-05-03 | Xerox Corporation | Methods, systems and processor-readable media for parking occupancy detection utilizing laser scanning |
| RU2016130342A (ru) * | 2013-12-25 | 2018-01-26 | Роберт Бош Компани Лимитед | Многофункциональный лазерный нивелир |
| US9542845B1 (en) * | 2015-09-11 | 2017-01-10 | Robert Bosch Gmbh | Method for ascertaining a parking area of a street section |
| DE102015212296A1 (de) * | 2015-07-01 | 2017-01-05 | Robert Bosch Gmbh | Verfahren zum Ermitteln einer Nutzbreite eines Straßenabschnitts |
| DE102015213513A1 (de) * | 2015-07-17 | 2017-01-19 | Robert Bosch Gmbh | Lasermessvorrichtung |
| DE102015223024A1 (de) * | 2015-11-23 | 2017-05-24 | Robert Bosch Gmbh | Laserentfernungsmessgerät |
| DE102016225242A1 (de) * | 2016-12-16 | 2018-06-21 | Robert Bosch Gmbh | Verfahren zur Herstellung eines Lasermoduls einer Laser-Nivelliervorrichtung sowie Laser-Nivelliervorrichtung |
| DE102017208180A1 (de) * | 2017-05-16 | 2018-11-22 | Robert Bosch Gmbh | Laserentfernungsmessgerät |
| US11956021B1 (en) * | 2023-04-24 | 2024-04-09 | Wireless Photonics Llc | Communication system and method for cloud-assisted free-space optical backhaul |
-
2019
- 2019-12-18 DE DE102019219951.8A patent/DE102019219951A1/de not_active Withdrawn
-
2020
- 2020-11-26 CN CN202080096885.3A patent/CN115066590B/zh active Active
- 2020-11-26 WO PCT/EP2020/083481 patent/WO2021121895A1/de not_active Ceased
- 2020-11-26 EP EP20815776.8A patent/EP4078084A1/de active Pending
- 2020-11-26 US US17/757,535 patent/US20230045402A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019219951A1 (de) | 2021-06-24 |
| CN115066590A (zh) | 2022-09-16 |
| CN115066590B (zh) | 2024-06-25 |
| US20230045402A1 (en) | 2023-02-09 |
| WO2021121895A1 (de) | 2021-06-24 |
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