WO2012059276A1 - Récepteur de faisceau lumineux à sortie vocale - Google Patents

Récepteur de faisceau lumineux à sortie vocale Download PDF

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Publication number
WO2012059276A1
WO2012059276A1 PCT/EP2011/066617 EP2011066617W WO2012059276A1 WO 2012059276 A1 WO2012059276 A1 WO 2012059276A1 EP 2011066617 W EP2011066617 W EP 2011066617W WO 2012059276 A1 WO2012059276 A1 WO 2012059276A1
Authority
WO
WIPO (PCT)
Prior art keywords
light beam
beam receiver
receiver
light
respect
Prior art date
Application number
PCT/EP2011/066617
Other languages
German (de)
English (en)
Inventor
Wolfgang Baierl
Mike Uhlig
Clemens Schulte
Patrick Meyer
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to CN2011800531236A priority Critical patent/CN103201589A/zh
Publication of WO2012059276A1 publication Critical patent/WO2012059276A1/fr

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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
    • G01C15/006—Detectors therefor
    • 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
    • G01C15/02—Means for marking measuring points
    • G01C15/06—Surveyors' staffs; Movable markers

Definitions

  • the present invention relates to an improvement of a light beam receiver for detecting a light beam marker.
  • Such light beam receivers are mainly used in combination with light beam generators for generating the light beam marking, in particular when the
  • Accuracy of a structure or a building or a site should be set or confirmed, for example, in a building area.
  • Rotary lasers in use, which are used for leveling tasks, meter cracks, etc. application.
  • a collimated laser beam is deflected about an axis of rotation so that it passes over a flat plane lying exactly horizontally.
  • many previously known light beam generators emit an invisible beam and, on the other hand, the visibility of visible light
  • Light beam receiver used by an arrow display to the user indicate whether a marking groove is above or below the beam plane. If the user has brought the device within the scope of an adjustable accuracy to the light beam marking, for example a laser plane, which is generated by a rotating laser beam, it is indicated to him by acoustic and optical signals. The user can then set a mark or read an altitude on a bar.
  • similar receivers are also used in construction machine control, e.g. from
  • Light beam receivers are often placed in everyday use in places that are difficult or impossible for the user to see. For example, they are set up very high or at corners or niches. For this reason, existing light beam receivers only have a limited amount of information, such as only a distance indication or even only arrows that indicate whether a marking groove is above or below the light beam marking.
  • the present invention seeks to provide an improved light beam receiver with increased information content and voice output that solves the problem described above.
  • a light beam marker can be a light beam of any shape.
  • a light beam marking can be a collimated light beam, which is either constant in space over time or rotates about an axis of rotation and thereby lies in a plane which is orthogonal to the axis of rotation.
  • a light beam marker may also be an in-plane-expanded light beam generated by, for example, a cone lens or a concave cone lens.
  • the light of the light beam may be coherent or non-coherent light and may belong to the visible or invisible wavelength spectrum.
  • This can be the Light beam receiver comprising: a light detector arrangement for determining a first position of the light beam receiver with respect to the
  • Voice output element which is connected to the light beam receiver and which is adapted to convert the output into speech signals and announce.
  • An example of such a light detector arrangement is a plurality of photoelectric detectors, which are shown as a first line on a
  • Front of the light beam receiver are arranged, the front shows in use in the direction of a source of the light beam marker.
  • the first line is essentially on the first axis.
  • the light detector assembly determines the position of the light beam receiver with respect to the light beam marker along the first axis.
  • said first layer may be the distance between a center of the first line and the location of maximum light intensity along the first axis and along the first line, respectively.
  • a marking groove may be attached. This indicates to the user a reference point for the at least one measured variable, which is determined by means of the present
  • Light beam receiver can be determined.
  • the light detector arrangement can perform interpolation on the signals of adjacent photoelectric detectors.
  • the microprocessor may generate outputs from metrics such as the first location.
  • the generated output can contain quantitative and / or qualitative information that can be determined from the measured variables.
  • quantitative information is information that can be represented by numeric values. Examples of these are: the distance of the center of the first line from the light beam mark along the first axis; or the distance of the light beam receiver from the ground.
  • Qualitative information is information that can be represented by ranges of values. Examples include: the center of the first line of the light beam marker is located above or below the light beam mark; or the light beam marker is not aligned (within tolerance limits) to the perpendicular.
  • the output is transmitted through the user interface, in particular through the first voice output element, to the user.
  • the first voice output element may contain the information contained in the output, that is, qualitative information such as "too high” or "too low", and / or quantitative information such as "3,21 cm too high” or "distance from Ground is 2.34 m ", convert into speech signals and the
  • the speech output element may, inter alia, use one of the following two types of speech synthesis for the artificial generation of a human speaking voice, that is to say of speech signals: on the one hand so-called signal modeling, which makes use of speech recordings; on the other articulatory modeling, wherein the speaking voice is completely generated in a microprocessor.
  • signal modeling which makes use of speech recordings
  • the speaking voice is completely generated in a microprocessor.
  • Such a speech output is advantageous if the light beam receiver for a survey is to be positioned so that it is not or only with difficulty for the user visible. It can offer the user an increased information content.
  • acoustically not only qualitative information, such as proper alignment, but also quantitative information, such as the current position of the light beam receiver with respect to the
  • Light beam marking to be transmitted.
  • the light detector assembly may further be adapted for determining a second position of the light beam receiver with respect to the light beam marker along a second axis, the second axis being the first axis in the second axis
  • the light detector arrangement may be a plurality of photoelectric detectors, which are arranged as a first line and a second line on a
  • Front of the light beam receiver are arranged, the front shows in use in the direction of a source of the light beam marker.
  • the first line is then essentially on the first axis and the second line on the second axis, wherein the two lines intersect centrally and at right angles.
  • the light detector assembly determines the position of the light beam receiver with respect to the light beam marker along the first axis and the second axis.
  • At the intersection of the first line and second line may be a
  • the light detector arrangement can perform interpolation on the signals of adjacent photoelectric detectors. Such a light detector arrangement allows the localization and / or
  • the user interface may further include a first display element disposed on the light beam receiver.
  • the display element may be any type of display, in particular it may be an LC screen or an LED segment display.
  • An indicator has opposite one
  • Speech output element the advantage of better clarity - of course, provided that it is visible to the user.
  • the light beam receiver may further comprise a remote control.
  • the remote control may be suitable for controlling the light beam receiver.
  • the remote control may be suitable to the
  • Light beam receiver on and off and / or request a voice output of the first voice output element.
  • the remote control itself may be adapted to transmit the output to the user, for which the user interface includes a third display element and / or a third
  • Have voice output element which are each arranged on the remote control.
  • a remote control has the advantage that the light beam receiver can be operated and read by the user from a greater distance.
  • a voice output on only the first voice output element can have the advantage in transmitting the output to the user relative to the remote control that the user does not need to operate and / or hold another device in the hand.
  • the light beam receiver may include a tilt sensor for determining a tilt angle of the light beam receiver with respect to the solder.
  • the inclination angle of the light beam receiver with respect to the solder be a measured variable.
  • the inclination sensor may, for example, be
  • Micromechanical system a mechanically or electromagnetically mounted pendulum body with electronic tap, a gyro platform or a reflecting or refracting liquid level.
  • An existing light beam receiver is mostly used for surveying and
  • Tilt angle of the light beam receiver and / or for and aligning the light beam receiver to the solder is therefore advantageous.
  • the light beam receiver may include a height sensor for determining a third position of the light beam receiver with respect to a first surface
  • attitude measurement can with sound, with
  • said third layer may be the distance between the center of the first line and the first surface along the first axis.
  • Such a height sensor is also advantageous for leveling and surveying tasks.
  • the light beam receiver may further comprise a position sensor, which may be adapted to determine the position of the light beam receiver on a second surface with respect to a reference location located on the second surface, wherein the position of the light beam receiver on the second surface with respect to the reference location can be a measured variable.
  • the position sensor can work to determine the position of the light beam receiver with respect to the reference location, for example mechanically-electrically or optomechanically or optically or based on acceleration sensors.
  • a mechanical-electrical position sensor uses mechanical contacts, especially sliding contacts, for coordinate determination, the mechanical contacts, however, are subject to heavy wear, but are very energy-efficient evaluation.
  • An opto-mechanical position sensor in an exemplary embodiment, includes a ball, two orifice plates, and associated light barriers for converting rolling motions of the ball into electrical signals. These are the rolling movements of the ball over two Transfer rollers to two perforated segment discs. From the
  • Direction of rotation and speeds of the segmented discs are generated via incremental encoders with the light barriers electrical impulses.
  • Advantageous over optical position sensors with an image processing processor is the lower power consumption.
  • a purely optical position sensor illuminates the second surface on which the position sensor is moved, with a built-in light source, such as a light emitting diode or a
  • Laser diode and records the reflections with an optical sensor.
  • a built-in microprocessor calculates the direction and speed of the differences between consecutively captured images
  • Surveying tasks are often designed to measure and align locations on building elements. In this case, such position sensors are advantageous.
  • the battery level of the light beam receiver and / or the reception strength of the light beam marking by the light detector arrangement can be measured variables.
  • the battery level and the indicated reception strength are parameters that are important for the proper function of the light beam receiver. It is therefore advantageous to include these as measured variables in the output and, if appropriate, to transmit them to the user, for example by means of a voice output element or by means of a display element.
  • the light beam receiver can be part of a measuring system.
  • the measuring system can continue to a light beam generator with a
  • the light beam generator may have a communication element for exchanging data with the light beam receiver and the
  • Light beam receiver may include a communication element for exchanging data with the light beam generator.
  • the communication elements can be based on W-LAN, Bluetooth or similar wireless technology as well as on cable technology. It is advantageous to use a measuring system consisting of light beam receivers and light beam generators tuned and communicated with one another in this way. This can be under another common user interface, among other things for controlling and reading the measuring system, can be used.
  • the light beam generator may be adapted to transmit the output to the user, for which purpose the user interface may comprise a third display element and / or a third voice output element, each on the
  • Light beam generator are arranged.
  • Light beam receiver generated output is using the
  • Safety shutdown of the light beam generator can be measured variables.
  • Light beam generator are parameters that are important for the proper functioning of the measuring system. It is therefore advantageous to include these as measured variables in the output and, if appropriate, to transmit them to the user, for example by means of a voice output element or by means of a display element. It is advantageous the position of the light beam receiver with respect to the
  • Determine light beam generator especially if the position of the light beam generator with respect to a component or a building structure is known. In the latter case, the position of the light beam receiver with respect to the building structure can be determined directly from the position of the light beam receiver with respect to the light beam generator.
  • the measuring system may comprise a distance sensor, which for
  • Light beam receiver is suitable, wherein the distance is a measured variable.
  • the measuring system may include a first distance sensor element which is connected to the light beam receiver, and / or a second
  • both light beam receivers and light beam generators in particular their microprocessors, can be equipped with clocks which are synchronized with each other.
  • the Distance sensor element may be an ultrasonic transmitting unit and the first Distance sensor element may be an ultrasonic receiving unit.
  • the second distance sensor element transmits an ultrasonic signal, which is subsequently received by the first distance sensor element, it is possible with the aid of
  • the second distance sensor element may be based on laser light and the first distance sensor element may be a measurement surface which reflects the laser light of the second distance sensor element particularly well. On command, the second laser-based distance sensor element can measure the distance.
  • the measuring system may be suitable for the angular position of the
  • the Beam receiver with respect to the light beam generator to determine.
  • the angular position of the light beam receiver with respect to the light beam generator may be a measured variable.
  • the light beam marking element may be a rotating laser and the
  • Light beam marking can be a rotating laser beam. Furthermore, the light beam marking element may have an angle measuring device for determining the angle of the rotating laser beam with respect to the light beam generator.
  • the rotating laser may be capable of rotating the rotating one
  • Laser beam so to stop and align the laser beam so that the laser beam is aligned with the light beam receiver.
  • the laser beam can therefore find the light beam receiver automatically.
  • the rotation of the laser beam can be slowed down and / or a decreasing segment method can be used, wherein the
  • Light beam receiver transmits a signal upon receipt of the laser signal by the light detector assembly to the light beam generator.
  • the area in which the light beam receiver is located can be limited further and further, until an end position is reached.
  • the light beam receiver emits an ultrasonic signal and a plurality of circumferentially distributed sensors on the light beam generator receive it, with the direction of the light beam receiver corresponding to the direction in which the sensor is first placed to receive the signal. Interpolation can increase accuracy and / or reduce the number of sensors.
  • Fig. 2 is a schematic, isometric view of the preferred embodiment
  • Fig. 3 is a schematic view of the preferred embodiment of a
  • FIG. 4 is a block diagram of the preferred embodiment of a measurement system according to the present disclosure.
  • a preferred embodiment of a measurement system according to the present disclosure is a light beam receiver 100, a light beam generator 200, a remote control 300, and a yardstick 400
  • the light beam generator 200 has a light beam marking element in the form of a rotary laser 220, which by means of a rotating
  • Laser beam a light beam marker 202 in the form of a laser plane 202nd
  • FIG. 2 shows a schematic, isometric view of the light beam receiver 100 in its preferred embodiment.
  • the light beam receiver 100 has a housing that has substantially the shape of a cuboid.
  • the housing has a top surface 102, a right side surface 106, a left side surface 107, a bottom surface 104, a back surface 109, and a bottom surface
  • the front surface 108 has a display element 600, a
  • Voice output element 140 Voice output element 140, a control element 130 and a
  • the right side surface 106 has an antenna 152.
  • the rear surface 109 has a recess, which is substantially parallelepiped-shaped and is suitable, as shown in Figure 2, the
  • Light beam receiver slidably attached to a staff 400.
  • the bar 400 has scale marks 410.
  • FIG. 3 is a block diagram of the preferred embodiment of FIG.
  • Measuring system comprising the light beam receiver 100, the light beam generator 200 and the remote control 300th
  • the light beam receiver 100 has a tilt sensor 122, a
  • Light detector array 124 Light detector array 124, a height sensor 126, a position sensor 127, a first distance sensor element 128, a microprocessor 110 with a first clock, a control element 130, a communication element 150, a voice output element 140 and a display element 600.
  • the light beam generator 200 includes a microprocessor 210 with a second clock, a light beam marker 220, a second distance sensor element 228, an operating element 230, a voice output element 240
  • the light beam marker 220 produces a light beam marker 202 in the form of a rotating laser beam 202.
  • This light beam marker 202 is a laser plane aligned with the solder, that is, orthogonal to the solder.
  • the light beam marking element 220 has an angle measuring device and is also suitable for aligning the laser beam in a specific angular direction. A measured variable is generated by the measuring system.
  • the distance sensor element 228 is designed as an ultrasonic transmitter.
  • the light beam receiver 100 has a corresponding first
  • the first and the second clock are synchronized with each other.
  • Light beam receiver 100 100.
  • Light beam marking element 220 is characterized by the
  • Light beam marker 220 generates. One occurs
  • Light beam generator 200 is opened, or if a component of
  • Light beam generator 200 overheats.
  • Another measure, the change in position of the light beam generator 200, is generated by the light beam generator 200.
  • Lichtmarkmark istselement 220 generated light mark 202 is re-aligned to the Lot, because, for example, the orientation of the entire
  • Modified light beam generator 200 with respect to the solder.
  • the operating element 230 serves the user for controlling the
  • Light beam generator 200 the light beam generator 200 can be switched on and off by means of the control element and the intensity of the light beam marking 202 generated by the light beam marking element 200 can be increased and decreased.
  • the voice output element 260 and the display element 240 embody user interface components.
  • the tilt angle of the light beam receiver 100 is generated by the tilt sensor 122. The tilt sensor 122 determines the tilt angle of the light beam receiver 100 with respect to the solder. The light beam receiver 100 is then aligned to the solder when the
  • Tilt angle is 0 ° and the bottom surface 104 is aligned orthogonal to the Lot and in the direction of the solder.
  • a first position of the light beam receiver 100 along a first axis 180 with respect to the light beam marker 202 is determined by the light detector array 124.
  • the light detector assembly is a cross-type array of photoelectric detectors on the front surface 108 of the housing of the light beam receiver 100.
  • a cross-type arrangement herein means that two rows of photoelectric detectors intersect at right angles and in the center.
  • Top surface 102 and the bottom surface 104 aligned so that the first line aligned along the solder when the entire light beam receiver 100 is aligned with the Lot. Based on which of the photoelectric detectors of the first row due to the incident light of
  • Light beam marker 202 output signals and how large these signals are, the light detector assembly 124 determines the first position of the
  • Said first position is the distance between the center of the first line and the place of highest light intensity along the first axis 180 and along the first line, wherein the place of highest intensity through the photoelectric detector of the first line is determined.
  • the precision of the measurement is higher than the center distance between two
  • a second position of the light beam receiver 100 along a second axis 185 with respect to the light beam marker 202 is also determined by the light detector array 124, by a second line of photoelectric detectors perpendicular to the first line and cuts in the middle.
  • the second line is aligned along the second axis 180, that is, parallel to the top surface 102 and the bottom surface 104, so that the first line is oriented orthogonal to the perpendicular when the entire light beam receiver 100 is aligned with the solder.
  • the light detector assembly 124 determines the second position of the light beam receiver 100 with respect to the light beam marker 202 along the second axis 185.
  • Said second Location is the distance between the center of the second line and the location of maximum light intensity along the second
  • the precision of the measurement is higher than the center distance between two photoelectric detectors, because the light detector array 124 interpolation on the signals of adjacent photoelectric
  • a third position of the light beam receiver 100 along the first axis 180 with respect to a first surface is determined by the
  • Altitude sensor 126 generated.
  • the height sensor 126 is in the preferred
  • Embodiment of a laser rangefinder based on laser triangulation The height sensor 126 is aligned along the first axis 180 so that it is aligned orthogonal to the bottom surface 104 and the top surface 102 and in the direction of top surface 102 to the bottom surface 104. In addition, the height sensor 126 is disposed on the bottom surface 104. The height sensor 126 is aligned along the solder and pointing to the solder when the
  • Light beam receiver 100 is aligned to the solder.
  • the position of the light beam receiver 100 on a second surface with respect to a reference location, which is also located on the second surface, is generated by the position sensor 127.
  • the position sensor 127 in its preferred embodiment is designed as an opto-mechanical position sensor 127 which has four balls. Their rolling motion is perforated in each case over two rolls on two each
  • Transfer segment discs Their direction of rotation and speed are transmitted via incremental encoders with small light barriers electrical impulses generates a position sensor 127 internal microchip converts in position changes. If the light beam receiver 100 is moved by means of the four balls on the second surface, in particular a wall, the
  • Position sensor 127 the movement of the light beam receiver 100 after. If the second surface is a flat surface, for example, the
  • Light beam receiver 100 from a reference location, where the position sensor 127 is zeroed, are moved to an arbitrary location on the second surface via an arbitrary trajectory.
  • the opto-mechanical position sensor 127 detects the movement of the light beam receiver 100 and can determine from the movement the trajectory and the current position of the light beam receiver 100 with respect to the reference location.
  • the light beam receiver 100 has a transmission element 150.
  • the transmission elements 150, 250 are implemented as W-LAN devices.
  • Another measure an angular position of the light beam receiver 100 with respect to the light beam generator 200, is generated by the measurement system.
  • the angle measuring device of the light beam marking element transmits in
  • a current angular position of the rotating light beam to the microprocessor 210 of the light beam generator 200th This twins these current angular positions with current time stamps to tuples and sends these tuples to the light beam receiver.
  • the light beam receiver 100 in particular its microprocessor 110, stores the last time at which the rotating laser beam 202 has traveled over the center of the light detector arrangement 124. This last time is compared with the tuples transmitted by the light beam generator 200 to determine the angular position of the
  • Light beam receiver 100 with respect to the light beam generator 200 to determine.
  • the measuring system can slow down the rotation of the rotating laser beam. All measured quantities are transmitted to the microprocessor 110.
  • Microprocessor 110 processes the measurements to an output.
  • the output is then transmitted to the user interface.
  • the user interface includes: a first display element 600 and a first voice output element 140 of the light beam receiver 100; a second display element 260 and a second voice output element 240 of the light beam generator 200; and a third display element 360 and a third voice output element 340 of the remote control 300.
  • the voice output elements 140, 240, 340 are suitable for speech synthesis, that is to artificially generate a human speaking voice (s).
  • Speech output elements 240, 340 has its own microprocessor, its own database and its own speaker.
  • the database stores voice recordings, so-called speech segments. To generate a human speaking voice, ie speech signals, this leads
  • Speech output elements 140 in particular its microprocessors, a signal modeling on the speech segments by. To do this
  • Speech signal linked and modulated Subsequently, the speech signals are transmitted to the speaker and output.
  • Fig. 4 shows a schematic view of a preferred embodiment of the display element 600.
  • the display element 600 displays the output, which, in particular for each display element and voice output element, through the
  • User can be configured individually and have any combination of the following in the information: battery level of the light beam receiver 604; Receiving power of the light beam marker 602 through the
  • Light receiver and a reference altitude 616 Location of the light receiver on the second surface 618, such as a wall;
  • Light beam marking element 622 current distance of the light beam generator from the light beam receiver 628; current angular position of the
  • Light beam receiver 100 with respect to the light beam generator 200 displays.
  • the operating elements 130, 230, 330 of the light beam receiver 100, the light beam generator 200 and the remote control 300 serve.
  • the light beam receiver 100 in its preferred
  • Embodiment control the light beam generator 200 remotely. So can the
  • Light beam receiver 100 the light beam generator 200 remotely controlled so that the generated by the Lichtstrahlmark istselement 200 rotating laser beam 202 is aligned by the light beam generator 200 to the center of the light beam receiver.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

La présente invention concerne une amélioration d'un récepteur de faisceau lumineux servant à détecter un marquage par un faisceau lumineux, comprenant : un ensemble photodétecteur destiné à déterminer une première position du récepteur de faisceau lumineux par rapport au marquage par un faisceau lumineux le long d'un premier axe, la première position étant une grandeur mesurée ; un microprocesseur destiné à générer une sortie d'au moins une grandeur mesurée ; et une interface utilisateur destinée à transmettre cette sortie à un utilisateur. L'interface utilisateur présente un premier élément de sortie vocale relié au récepteur de faisceau lumineux et conçu pour convertir la sortie en signaux vocaux et l'annoncer.
PCT/EP2011/066617 2010-11-04 2011-09-23 Récepteur de faisceau lumineux à sortie vocale WO2012059276A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011800531236A CN103201589A (zh) 2010-11-04 2011-09-23 具有语音输出的光束接收器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010043359.4 2010-11-04
DE102010043359A DE102010043359A1 (de) 2010-11-04 2010-11-04 Lichtstrahlempfänger mit Sprachausgabe

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WO2012059276A1 true WO2012059276A1 (fr) 2012-05-10

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US9866322B2 (en) 2012-03-15 2018-01-09 Leica Geosystems Ag Laser receiver
WO2024071291A1 (fr) * 2022-09-30 2024-04-04 株式会社トプコン Système de mise à niveau et récepteur optique laser
WO2024071289A1 (fr) * 2022-09-30 2024-04-04 株式会社トプコン Système de mise à niveau et récepteur laser

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US9146106B2 (en) * 2013-12-11 2015-09-29 Trimble Navigation Limited Laser receiver using a smart device
AT519675B1 (de) * 2017-03-30 2018-09-15 Egon Doeberl Lagesensor
EP3396314A1 (fr) * 2017-04-25 2018-10-31 HILTI Aktiengesellschaft Jalon d'arpentage et station de mesure
US11982746B2 (en) * 2019-02-08 2024-05-14 Topcon Positioning Systems, Inc. System and method for tracking a reference laser
DE102019002516A1 (de) * 2019-04-07 2020-10-08 Androtec Gmbh Messanordnung und Verfahren zur optischen oder quasioptischen Positionsbestimmung
EP3839430A1 (fr) * 2019-12-16 2021-06-23 Hilti Aktiengesellschaft Système laser pourvu d'optique de focalisation réglable
JP7487863B2 (ja) * 2020-08-25 2024-05-21 株式会社トプコン 測量システム、丁張設置支援方法、丁張設置支援プログラム
EP4015994B1 (fr) 2020-12-21 2024-09-18 Leica Geosystems AG Système de nivellement laser

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