WO2012059276A1

WO2012059276A1 - Light-beam receiver with voice output

Info

Publication number: WO2012059276A1
Application number: PCT/EP2011/066617
Authority: WO
Inventors: Wolfgang Baierl; Mike Uhlig; Clemens Schulte; Patrick Meyer
Original assignee: Robert Bosch Gmbh
Priority date: 2010-11-04
Filing date: 2011-09-23
Publication date: 2012-05-10
Also published as: CN103201589A; DE102010043359A1

Abstract

The present invention relates to an improvement to a light-beam receiver for verification of a light-beam marking, having: a light detector arrangement for determination of a first position of the light-beam receiver with respect to the light-beam marking along a first axis, wherein the first position is a measurement variable; a microprocessor for production of an output from at least one measurement variable; and a user interface for transmission of the output to a user, wherein the user interface has a first voice output unit, which is connected to the light-beam receiver and is suitable for converting the output to voice signals, and for speaking them.

Description

description

title

Light beam receiver with voice output prior art

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.

Such light beam receivers for the

Localization of a light beam marker known. For example, in the construction industry for a long time Lichtstrahlerzeuger, in particular

Rotary lasers, in use, which are used for leveling tasks, meter cracks, etc. application. In a rotating laser, a collimated laser beam is deflected about an axis of rotation so that it passes over a flat plane lying exactly horizontally. On the one hand, many previously known light beam generators emit an invisible beam and, on the other hand, the visibility of visible light

Laser light decreases rapidly with the distance, so-called

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. Furthermore, similar receivers are also used in construction machine control, e.g. from

To find bulldozers and graders. Typical constructions, such as are known in the art, can be found inter alia in (US Pat. No. 5,486,690) or (US Pat. No. 5,471,049).

Now, light beam receivers for construction machine control and special tasks are no longer just satisfied with a pure arrow display. Rather, a linear height measurement of the laser receiver is required here. Such receivers with linear height measurement along a

Detector line are disclosed in (US 6,133,991) or (DE 10 2204 053 686 A1).

The prior art published prior to this application has, among other things, the following problem: 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.

Object of the invention

The present invention seeks to provide an improved light beam receiver with increased information content and voice output that solves the problem described above.

Disclosure of the invention

The present invention relates to a light beam receiver for detecting a light beam marker. In the present case, a light beam marker can be a light beam of any shape. In particular, however, 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

Light beam marking along a first axis, wherein the first layer is a measured variable; a microprocessor for generating an output from at least one measurand; a user interface for communicating the output to a user, wherein the user interface is a first

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. Based on which of the photoelectric detectors output signals due to the incident light of the light beam marker and how large these signals are, the light detector assembly determines the position of the light beam receiver with respect to the light beam marker along the first axis. In particular, 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. At the middle of the first line, 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. For example, to increase the precision of the measurement, 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. In the present case, 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

Announce user. For this purpose, 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. 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. Thus, 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

Substantially orthogonal intersects, and wherein the second layer is a measured variable. For this purpose, 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. Based on which of the photoelectric detectors output signals due to the incident light of the light beam marker and how large these signals are, 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. In particular, said first position of the Distance between the center of the first line and the location of maximum light intensity along the first axis or be along the first line and said second layer, the distance between the center of the second line and the location of highest light intensity along the second axis or along the second line. At the intersection of the first line and second line may be a

Marking groove be attached. For example, to increase the precision of the measurement, the light detector arrangement can perform interpolation on the signals of adjacent photoelectric detectors. Such a light detector arrangement allows the localization and / or

Positioning of a light beam marker in vertical and horizontal direction.

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. For example, 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. In addition, 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. Of course, such a remote control has the advantage that the light beam receiver can be operated and read by the user from a greater distance. However, 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. In this case, 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 (MEMS), 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

Leveling tasks used. In this case, measurements are carried out with respect to the solder. Such a tilt sensor for determining the

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,

in particular a ground, along the first axis, wherein the third layer may be a measured variable. The attitude measurement can with sound, with

Microwaves or with laser beams. In particular, the

Height measurement using a transit time measurement, a phase position measurement or a laser triangulation with laser light done. In particular, 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

Movement of the position sensor. The advantage here is the high precision and that failure due to dirty balls and especially rolling axles can not occur due to design. In construction and

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.

In addition, the light beam receiver can be part of a measuring system. The measuring system can continue to a light beam generator with a

Have light beam marking element for generating the light beam marker. In this case, 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. The microprocessor of the

Light beam receiver generated output is using the

Communication elements transmitted to the light beam generator.

Battery level and / or a change in position and / or a

Safety shutdown of the light beam generator can be measured variables. The battery level, a change in position and the reception strength of the

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.

For this purpose, the measuring system may comprise a distance sensor, which for

Determining a distance between the light beam generator and the

Light beam receiver is suitable, wherein the distance is a measured variable.

In particular, the measuring system may include a first distance sensor element which is connected to the light beam receiver, and / or a second

Distance sensor element which is connected to the light beam generator, have. According to a first example, both light beam receivers and light beam generators, in particular their microprocessors, can be equipped with clocks which are synchronized with each other. The second

Distance sensor element may be an ultrasonic transmitting unit and the first Distance sensor element may be an ultrasonic receiving unit. When 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

synchronized clocks, the duration of the ultrasonic signal and the latter, in turn said distance are determined. According to a second example, 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.

Furthermore, the measuring system may be suitable for the angular position of 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. In a first alternative, 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. As a result, the area in which the light beam receiver is located can be limited further and further, until an end position is reached. In a second

Alternatively, 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.

drawing

Reference to the drawings, the invention is explained below by way of example with reference to exemplary embodiments. The description, the associated figures and the claims contain numerous features in combination. A person skilled in the art will consider these features, in particular also the features of various exemplary embodiments, individually and to make other meaningful ones

Combine combinations.

1 is a schematic, isometric view of a preferred

Embodiment of a measuring system according to the present disclosure;

Fig. 2 is a schematic, isometric view of the preferred

Embodiment of a light beam receiver according to the present invention

Epiphany;

Fig. 3 is a schematic view of the preferred embodiment of a

Display element of the light beam receiver according to the present invention

Epiphany;

4 is a block diagram of the preferred embodiment of a measurement system according to the present disclosure.

Description of the embodiments

A preferred embodiment of a measurement system according to the present disclosure, as shown in FIG. 1, is a light beam receiver 100, a light beam generator 200, a remote control 300, and a yardstick 400

executed. 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

generated. The light beam marker 202 is detected by the light beam receiver 100. 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

Front surface 108. The front surface 108 has a display element 600, a

Voice output element 140, a control element 130 and a

Light detector array 124 on. 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, 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

Transfer element 250 and a display element 260 on.

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 second

Distance sensor element 228 is designed as an ultrasonic transmitter. The light beam receiver 100 has a corresponding first

Distance sensor element 128, which is designed as an ultrasonic receiver. The first and the second clock are synchronized with each other. The second

Distance sensor element 228, at the command of microprocessor 210, transmits an ultrasonic signal that receives first distance sensor element 128. At the same time, the microprocessor 210 transmits the time of the command to the first microprocessor 110. The first microprocessor 110 calculates the transit time of the ultrasound signal from the time of transmission and the time of reception and, in turn, a distance between the light beam generator 200 and the

Light beam receiver 100.

Another measure, the battery level of the light beam generator 200, is generated by the light beam generator 200.

Another parameter, the safety shutdown of the

Light beam marking element 220, is characterized by the

Light beam marker 220 generates. One occurs

Safety shutdown, for example, if a housing of the

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. Under one

Position change is understood present that the by the

Lichtmarkmarkierungselement 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. Among other things, 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. In addition, the voice output element 260 and the display element 240 embody user interface components. Another measure, 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.

Another measure, 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. In the preferred embodiment, 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. Here, the first line along the first axis 180, that is orthogonal to the

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

Light beam receiver 100 with respect to the light beam marker 202 along the first axis 180. 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

photoelectric detectors, because the light detector assembly 124 a

Performs interpolation on the signals of adjacent photoelectric detectors.

Another measure, 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. In this case, 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. Based on which of the second line photoelectric detectors output signals due to the incident light of the light beam marker 202 and how large these signals are, 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

Axis 185 or along the second line, wherein the location of highest intensity is determined by the photoelectric detector of the second line. 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

Performs detectors.

Another measure, 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.

Another measure, 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. For this purpose, 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.

Furthermore, the light beam receiver 100 has a transmission element 150. By means of the transmission element 150 of the light beam receiver 100 and the transmission element 250 of the light beam generator 200

Transfer measured quantities from the light beam generator 200 to the light beam receiver 100. In the preferred embodiment, 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

At regular intervals and several times per revolution of the rotating laser beam, 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. To increase the precision of the angular position determination, the measuring system can slow down the rotation of the rotating laser beam. All measured quantities are transmitted to the microprocessor 110. Of the

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). The voice output elements 140, as well as the

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 segments from the respective databases to the desired

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 detector array; Arrow output 608 indicating whether light beam marker 202 is above or below the center of the light detector assembly; number output

606 indicating how far light beam mark is above or below the center of the light detector array; current height of the light receiver 100 from the ground, the first surface, 614; Difference between the current amount of

Light receiver and a reference altitude 616; Location of the light receiver on the second surface 618, such as a wall;

Position change of the light beam generator 620; Battery level of the Light beam generator 624; Safety shutdown of

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 with respect to the light beam generator in the plane of the light beam marker 626; Reference distance of the light beam generator from the light beam receiver 630; Angle between the current angular position and a reference angular position of the light beam receiver with respect to the light beam generator 632; and schematic plan view of the measuring system, both the current position and a reference position of

Light beam receiver 100 with respect to the light beam generator 200 displays.

For adjusting which of the above-mentioned information is transmitted to the user by which display element 260, 360, 600 or voice output element 140, 240, 340, the operating elements 130, 230, 330 of the light beam receiver 100, the light beam generator 200 and the remote control 300 serve.

Furthermore, 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 Lichtstrahlmarkierungselement 200 rotating laser beam 202 is aligned by the light beam generator 200 to the center of the light beam receiver.

Claims

claims

A light beam receiver (100) for detecting a light beam marker (202), comprising:

a light detector arrangement (124) for determining a first position of the light beam receiver (100) with respect to the light beam marker (202) along a first axis (180), the first location being a measure;

- A microprocessor (110) for generating an output from at least one measured variable; and

a user interface for communicating the output to a user, the user interface having a first voice output element (140) connected to the light beam receiver (100) and adapted to convert the output to voice signals and announce.

2. Light beam receiver (100) according to claim 1, wherein the output contains quantitative information, in particular at least one measured variable.

3. light beam receiver (100) according to one of the preceding

Claims, wherein the user interface continues to be a first

Indicator (160) disposed on the light beam receiver (100).

4. light beam receiver (100) according to one of the preceding

Claims, further comprising: a remote control (300) for controlling the light beam receiver (100) and / or for transmitting the output to the user, to which the user interface further comprises a third display element (360) and / or a third voice output element (340) on the remote control (300) are arranged.

5. light beam receiver (100) according to one of the preceding

Claims, wherein the light detector assembly (124) further to the

Determining a second location of the light beam receiver (100) with respect to the light beam marker (202) along a second axis (185), the second axis (185) intersecting the first axis (180) substantially orthogonally, and wherein the second location is a measured variable.

6. light beam receiver (100) according to one of the preceding

Claims, wherein the light beam receiver (100) has a tilt sensor (122) for determining a tilt angle of the light beam receiver (100) with respect to the Lot, and wherein the inclination angle of the

Light beam receiver (100) with respect to the Lot is a measured variable.

7. Light beam receiver (100) according to one of the preceding

Claims, wherein the light beam receiver (100) is a height sensor

(126) for determining a third layer of the light beam receiver (100) with respect to a first surface in a defined direction, and wherein the third layer is a measured quantity.

8. light beam receiver (100) according to one of the preceding

Claims, wherein the light beam receiver (100) is a position sensor

(127) adapted to determine the position of the light beam receiver (100) on a second surface with respect to a reference location located on the second surface, the location of the light beam receiver (100)

Light beam receiver (100) on the second surface with respect to the reference location is a measured variable, and wherein the position sensor (127) is in particular a mechanical-electrical or an optomechanical or an optical or an acceleration sensor based position sensor (127).

A measuring system comprising a light beam receiver (100) according to any one of the preceding claims and a light beam generator (200) having a light beam marking element (220) for generating the light beam

Light beam marker (202), wherein the light beam generator (200) a

Communication element (250) for exchanging data with the

A light beam receiver (100), and wherein the light beam receiver (100) comprises a communication element (150) for exchanging data with the

Light beam generator (200).

10. Measuring system according to claim 9, wherein the measuring system has a distance sensor (128, 228), suitable for determining a distance between the light beam generator (200) and the light beam receiver (100), wherein the distance is a measured variable.

11. Measuring system according to one of the claims 9 to 10, wherein the measuring system is suitable, the angular position of the light beam receiver (100) in

With respect to the light beam generator (200) to determine, and wherein the angular position of the light beam receiver (100) with respect to the

Light beam generator (200) is a measured variable.