Method for carrying out test assembly of test article to be assembled on vehicle body

Abstract

The invention relates to a method for carrying out test assembly of a test piece (2) to be assembled on a vehicle body, comprising the following method steps: assembling the test piece (2) on a receiving section (3) of a reference device (4); detecting at least one reference pattern (5) arranged or formed in or on the reference device (4) by means of a detection device of the augmented reality system (1) and generating reference pattern detection information; generating image information (6), the image information (6) depending on the reference pattern information; the image information (6) indicates a predefined target state of the test piece (2) and a target orientation and / or a target position of the test piece (2) relative to the reference device (4) and is output as visually perceptible information on an output unit (7) of the augmented reality system (1).

Description

Technical Field

[0001] The invention relates to a method for carrying out a test assembly of a test piece to be assembled on a vehicle body. Background Art

[0002] In principle, corresponding methods for carrying out test mounting of test pieces to be mounted on a vehicle body are known from the prior art. However, the systems known there are characterized in that they do not have sufficient accuracy in detecting the position and orientation of the actual object and subsequently projecting information related to the position and orientation of the augmented reality system. Typically, events on the components or structural assemblies are used as references, which are present there "randomly", such as threaded holes or edges. However, these references are often not sufficiently accurate or sufficient in number to display an evaluation of the actual, real-time detected object and the image shown thereon with sufficient accuracy by superimposing the information on the display unit. Summary of the invention

[0003] The object of the present invention is to specify a method which improves the quality of test mounting and, in particular, the evaluation of test mounting of test pieces to be mounted on a vehicle body, in particular with regard to simple and rapid and cost-effective measures.

[0004] This object is achieved by a method for carrying out a test assembly of a component to be mounted on a vehicle body according to claim 1. The claims subordinate thereto relate to possible embodiments of the method.

[0005] The present invention relates to a method for implementing a test assembly of a test piece to be assembled on a vehicle body, the method comprising the following method steps: (a) assembling the test piece on a receiving section of a reference device. The following part of the reference device can be understood as a receiving section, which is designed according to the assembly of a component corresponding to the test piece, in particular, at least one receiving gap of the receiving section and / or at least one fastening interface of the receiving section is designed or constructed so that a component corresponding to the test piece can be installed. In a state where the test piece is mounted on the reference device, (b) at least one reference pattern set or constructed in or on the reference device is detected using a detection device of an augmented reality system and reference pattern detection information is generated. The reference pattern here is, for example, a pattern designed specifically for reference search or reference and thereby for tracking of an augmented reality system. The pattern may be characterized in that the pattern has reliable detectability of its position and orientation relative to the detection device of the augmented reality system. After detecting the reference pattern and generating reference pattern detection information accordingly, (c) image information is generated, wherein the image information depends on the reference pattern information and describes a predefined theoretical state of the test piece and a theoretical orientation and / or theoretical position of the test piece relative to the reference device and is output as visually perceptible information on an output unit of the augmented reality system.

[0006] For example, an at least partially transparent and / or at least partially opaque representation of the test piece on an output unit, such as a display of an augmented reality system, is output or displayed. By reproducing the position and orientation of the augmented reality system by the reference detection information and in particular also detecting and providing changes during the position and / or orientation of the augmented reality system relative to the reference device, the image information or display of the theoretical component, such as a so-called shadow model of the theoretical component, can be adapted on the display of the augmented reality system in such a way that the theoretical component is displayed as bound to the reference device. This makes it possible to display a representation on the display of the augmented reality system, on which the theoretical component of the image information is displayed as "retained" on the receiving section, even in the event of a change in the viewing angle or a change in the detection angle of the detection device on the ARS (augmented reality system) side relative to the reference device.

[0007] A CAD data record of the test piece describing the theoretical state of the test piece can be stored in the computer system. In addition, a CAD data record of a reference device can be stored in the computer system, the CAD data record describing the theoretical state of the reference device. It is also possible to store a CAD data record of the assembly state of the test piece and the reference device in the computer system, the CAD data record describing the theoretical state of the assembled structural assembly including the test piece and the reference device. This information from the corresponding CAD data record can be used to generate image information and describe the displayed theoretical orientation and / or theoretical position and / or displayed theoretical state of the test piece. In other words, for example, the theoretical state of the test piece and / or the theoretical orientation of the test piece relative to the reference device and / or the theoretical position of the test piece relative to the reference device can be derived or derived from the CAD data record of the assembly state.

[0008] The reference pattern can be designed in such a way that it is suitable for at least two-dimensional, preferably three-dimensional, referencing or tracking.

[0009] The augmented reality system can be configured as a tablet computer and / or glasses and / or a smart phone and / or a portable computer (such as a laptop). The augmented reality system can also be configured as a mobile terminal device, such as a portable electronic terminal device or an electronic mobile device. As an augmented reality system, for example, an electronic terminal device, such as a smart phone, a tablet computer and / or a portable computer (such as a laptop) can be used.

[0010] Preferably, the reference device may include at least two reference patterns on the reference device, in particular on a reference member of the reference device. It is possible that the reference device includes at least two reference patterns arranged separately or spaced apart from each other, wherein their areas differ by at least a factor of 2, preferably a factor of 3, particularly preferably a factor of 4, most preferably a factor of 5, further preferably a factor of 6.

[0011] The reference device can be designed, for example, as a so-called zero body, also called a test cube body or a zero geometry body or a prototype body, that is, as a structural assembly that reproduces a target state of a structural assembly, such as a body and / or a vehicle interior. In this way, for example, components can be disassembled as part of a reference device that forms a reference structural assembly and consists of a plurality of reference components, and in this way a receiving section of the reference device is released for receiving a test piece to be mounted, so that the test piece can be mounted on the receiving section. In other words, the test piece is temporarily mounted in or on the receiving portion of the reference device and the quality assessment of the test piece is evaluated with the aid of an augmented reality system and thereafter is disassembled or released again from the receiving portion of the reference device.

[0012] It is possible that at least two reference patterns, in particular at least two groups of reference patterns, are arranged or formed on the reference device, wherein the respective reference patterns or the respective groups of reference patterns are assigned to different focal areas for focusing of a section of the reference device. Thus, for example, a large-area reference pattern can be arranged for detecting a large image area of ​​the reference device. In other words, a large-area reference pattern can be used to detect a large surface section of the reference device by a detection device of an augmented reality system and to display a large surface section of the reference device by a display unit of the augmented reality system and at the same time sufficient accuracy of the visible image section can be achieved. This is suitable for displaying and, if necessary, evaluating test (components) with large extension dimensions (for example, greater than 10.0 cm, preferably greater than 25.0 cm, particularly preferably greater than 50.0 cm, and further preferably greater than 100.0 cm). The second reference pattern, in particular the second group of reference patterns, can be characterized by a smaller area and / or a smaller maximum extension dimension than a larger surface section and be used to implement focusing of the detection device on a smaller surface section of the reference device.

[0013] It can be advantageous to provide or form a reference pattern or a reference pattern group adapted to the respective focus area on the predefined focus area, so that, depending on the selection of the predefined focus area, the reference pattern assigned to the focus area and, if necessary, adapted to the focus area can be used for detection and, in particular, for tracking. The tracking performed includes a synchronous or online updating of the imaged image information with an image of the actual object, i.e., the test piece and, in particular, the reference device, which is adjacent to the test piece, detected by the detection device of the augmented reality system and displayed on the augmented reality system. Tracking can be understood as the dynamic tracking of the observation section of the test piece and / or the reference device, which is changed in space by the movement of the augmented reality system, by the image information displayed on the display device.

[0014] It is possible that the image information describes a theoretical state of the reference device. Here, for example, the image information can graphically show a reference component of the reference device and / or at least one orientation and / or position of two reference components of the reference device on a display unit of the augmented reality system, i.e., for example, on a display.

[0015] The at least one reference pattern can be configured, for example, as an element that exists separately from the reference device and / or the test piece and is fastened or can be fastened to the reference device and / or to the test piece in a force-locked and / or material-locked and / or form-locked manner. In this way, the reference pattern can be configured, for example, as a rigid plate, which is patterned, for example, by protruding or backward offset sections. The reference pattern can be configured, for example, as a label, which is attached or can be attached to the reference pattern. The at least one reference pattern can have a flat or partially protruding shape. Alternatively or additionally, the reference pattern can have a contrasting structure or have a contrast by selecting different colors and / or different brightness levels, and / or form a reference pattern by different glossiness of each section of the reference pattern, which can be quickly and reliably detected by the detection device of the augmented reality system. The augmented reality system is designed so that the augmented reality system recognizes a predefined, especially unique reference pattern in its structure (e.g. brightness and / or gloss and / or color). Preferably, the augmented reality system is configured to assign the detected reference pattern to a predefined reference pattern stored in a data memory of the augmented reality system. By means of this assignment, a predefined focal point or image area of ​​the reference device and / or the test piece and / or the receiving cavity of the reference device can be identified. This identification or the identification information formed thereby can be used to change, in particular to specify, the output of image information, in particular information about the state and / or position and / or orientation of the theoretical test piece.

[0016] At least one reference pattern can be formed integrally with the reference device, for example. Preferably, the reference pattern is machined into the surface of the reference device as a recess and / or as a protrusion. For example, at least one reference pattern can be at least partially, especially completely milled into the surface of the reference device and / or the test piece. Alternatively or additionally, the at least one reference pattern can be at least partially, preferably mainly, particularly preferably completely set or formed by a 3D printing method, for example, stamped / melted onto the reference device. For example, the reference component or at least one of its components is manufactured during the 3D printing method and thereby formed together on site during the manufacturing process. For example, additive manufacturing methods using metal powder or powder made of plastic, such as selective laser melting methods, can be understood as 3D printing methods.

[0017] At least one reference pattern can have, for example, an area of ​​at least 2 cm 2 , preferably at least 5cm 2 , particularly preferably at least 10 cm 2 , preferably at least 100cm 2 , further preferably at least 250cm 2The area of ​​the at least one reference pattern refers here to the planar extension dimension within which the defined pattern or the defined structure is formed, which is detected by a detection device and used to form reference pattern detection information or to generate image information describing the theoretical state of the test piece and the theoretical orientation and theoretical position of the test piece relative to the reference device.

[0018] The reference pattern can be designed three-dimensionally, for example, and have a depth of 1.5 mm to 5.0 mm and the highest possible contrast (for example a first section in white or silver and further sections in dark grey or black).

[0019] At least one reference pattern may have a maximum width of 1000 cm, for example. 2 , preferably up to 500cm 2 , especially preferably up to 250cm 2 、Highest preferred maximum 100cm 2 , further preferably a maximum of 25cm 2 Such a large area of ​​the reference pattern enables detection of large image parts by the detection device. Preferably, at least one reference pattern can have a rectangular and / or square external limiting shape and / or a regular n-gon (such as a pentagon, hexagon, heptagon or octagon, etc.) external limiting shape.

[0020] The reference pattern can, for example, have optically detectable structures for detection by a detection device of the augmented reality system and for generating image information with an accuracy of at least 1.0 mm, preferably at least 0.5 mm, particularly preferably at least 0.25 mm, and most preferably at least 0.1 mm. This means that the deviations of the nominal dimensions from the actual dimensions of the structures of the reference pattern deviate by at most the above values ​​(in terms of shape and / or orientation), i.e. by at most 1.0 mm or 0.5 mm, for example.

[0021] At least one reference pattern can, for example, have a depth of a maximum of 20 mm, preferably a maximum of 10 mm, particularly preferably a maximum of 5 mm, and most preferably a maximum of 3 mm, i.e. a protrusion or groove perpendicular to its main extension plane and / or have a depth of at least 0.25 mm, preferably at least 0.35 mm, particularly preferably at least 0.5 mm, and most preferably at least 1.0 mm.

[0022] Optionally, it is possible that the at least one reference pattern has at least three defined depth ranges, that is, at least three surfaces that are depth-defined or depth-specifically detectable by a detection device of an augmented reality system in three planes. In other words, at least three surface segments of the reference pattern are arranged or constructed at different distances perpendicular to the main extension plane of the reference pattern so that the corresponding surface segments and the relative depths assigned to these surface segments relative to the reference depth and / or to each other can be detected by the detection device of the augmented reality system. Through these depth-related or depth-specific detectability of the various surface segments of the reference pattern, good tracking capabilities and / or fast and reliable or accurate generation of image information can be achieved. For example, the first depth range and the second depth range and / or the second depth range and the third depth range can have a distance of 0.5 mm to 100 mm, preferably a distance of 1 mm to 50 mm.

[0023] It is possible that at least one first reference pattern is arranged or formed on a first component of the reference device and at least one second reference pattern is arranged or formed on a second component of the reference device, and the at least one first reference pattern and the at least one second reference pattern are detected by means of the detection device of the augmented reality system and an analysis of the position and / or orientation of the first reference pattern relative to the second reference pattern is performed and reference pattern state information indicating the position and / or orientation of the first reference pattern relative to the second reference pattern is generated. This reference pattern state information can be compared with theoretical state information, for example, and corresponding prompt information is output when there is a deviation exceeding a defined degree. By detecting and analyzing the position and / or orientation of at least two reference patterns arranged in or on the reference device, calibration of the reference patterns with each other and / or the augmented reality system can be performed.

[0024] Optionally, the reference device can be connected to a supporting structure, such as a structural assembly support, in particular in a non-detachable manner. The structural assembly support, for example, can have at least one reference pattern, so that in particular in the region of the reference device adjacent to the structural assembly support and / or in the region of the test piece adjacent to the structural assembly support, the reference pattern on the structural assembly support side can detect and determine the position and / or orientation of the augmented reality system relative to the reference device and / or relative to the test piece. By the structural assembly support not or not in terms of size in its surface such as the reference device itself is predetermined by the target shape of the vehicle body, it can be advantageous to use the reference pattern on the structural assembly support side for tracking the reference device and / or the test piece. The structural assembly support can have a frame structure here, for example, and is used to support the reference device, in particular a reference device configured as a vehicle body. By the structural assembly support having a defined and invariable position and / or orientation relative to the reference device, in particular a zero vehicle body, in accordance with the provisions, the reference pattern on the at least one structural assembly support side can be used for relative position and / or orientation determination, i.e. for tracking the reference device and / or the test piece in the augmented reality system moving relative to this.

[0025] For example, at least one reference pattern may have at least three reference planes, i.e., depth ranges, wherein the second depth range has a distance from the first depth range in the range of 1.0 mm to 10.0 mm. Alternatively, the third depth range may have a distance from the first depth range of 10.01 mm to 30.0 mm. For example, the fourth depth range may also have a distance from the first depth range of 30.01 mm to 100.0 mm.

[0026] In a preferred embodiment, the method provides that the test piece should be evaluated in relation to its installation position on the superordinate structural assembly or superordinate component. For this purpose, the test area is first determined, i.e., the position of the reference device at which the component, i.e., the test piece, should be evaluated or assessed. For this purpose, the environment of the test piece on the reference device is also examined, in particular the adjacent reference patterns or reference patterns required for the desired observation accuracy and the resulting image parts or focal points. In addition, CAD data are used, which contain the theoretical state of the test piece relative to the reference device as well as the theoretical position and / or theoretical orientation.

[0027] In addition, the automatic selection and / or determination of the adjacent reference pattern existing on the test piece to be evaluated can be carried out.Then the selected or determined information is provided to the augmented reality system or augmented reality software for reprocessing.These information are used for tracking or for reference and are used to track the position and / or orientation of the augmented reality system relative to the reference pattern.The test piece to be evaluated at last and / or its zone are especially shown in the form of theoretical and / or actual line and / or edge and / or face.The simplified geometric assessment of the structural assembly of the test piece and / or reference device can be implemented by these visually perceptible image information at last.

[0028] In addition to a method for carrying out a test installation of a test article to be installed on a vehicle body, the invention also relates to an arrangement comprising a test article and a reference device and an augmented reality system, wherein the arrangement is provided for carrying out the method described here.

[0029] All advantages, details, embodiments and / or features of the method according to the invention can be transferred or applied to the arrangement according to the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The invention is further explained in the drawings with reference to an exemplary embodiment. Here, the following is shown:

[0031] Figure 1 A schematic diagram showing the principle of an augmented reality system, wherein the augmented reality system is aligned on a reference device equipped with a test piece according to one embodiment;

[0032] Figure 2 A schematic diagram of a reference device provided with a reference pattern according to one exemplary embodiment is shown. DETAILED DESCRIPTION

[0033] The figures show individual elements for carrying out a method for carrying out a test installation of a test piece 2 to be installed on a vehicle body. The method provides for the following method steps: (a) The test piece 2 is installed on a receiving section 3 of a reference device 4, wherein the test piece 2 can be fastened to the receiving section 3 of the reference device 4 in a releasable or non-destructively releasable manner by means of fixing means (not shown), such as screws, snaps and / or latching projections and / or rivets. Then (b) at least one reference pattern 5 arranged or formed in or on the reference device 4 is detected by means of a detection device of the augmented reality system 1 and reference pattern detection information is generated. Then (c) image information 6 is generated, wherein the image information 6 depends on the reference pattern information and the image information 6 indicates a predefined theoretical state of the test piece 2 and a theoretical orientation and / or theoretical position of the test piece 2 relative to the reference device 4 and is output as visually perceptible information on an output unit 7 of the augmented reality system 1. The detection of the reference pattern 5 can be used to track the image information 6 displayed on the augmented reality system 1 on its output unit 7. The image information 6 can be output, for example, on an output unit 7 designed as a screen, which is configured to output the image information in a form that is visually perceptible to a person. For example, the output unit 7 is designed as a screen and / or a projector. The projector can be configured to project the image information onto a wall and / or an object and / or a retina and / or a spectacle lens and thereby output it in a form that is visually perceptible to a user.

[0034] The image information 6 can illustrate the theoretical state of the reference device 4. The image information 6 can thus at least partially illustrate, for example as an edge, a region adjacent to the test piece 2. For example, a theoretical gap size can thereby be output as image information 6, wherein two delimiting edges of a gap forming the theoretical gap size can be displayed in the image information, for example as a shadow structure, i.e., as a theoretical structure that is shown transparently, for example.

[0035] At least one reference pattern 5 can be designed, for example, as an element that is separate from the reference device 4 and is fastened or can be fastened to the reference device 4 in a force-locking and / or material-locking and / or form-locking manner. Preferably, the reference pattern 5 is fastened to the reference device 4 in a non-releasable manner, i.e., not releasable without destruction. Alternatively, the reference pattern 5 can be releasably connected to the reference device 4. As an example of releasable fastening, it can be cited that the reference pattern 5 is fastened to the reference device 4 by means of magnetic force and can undergo changes in its position and / or orientation when necessary.

[0036] At least one reference pattern 5 can optionally be formed integrally with the reference device 4. Preferably, the reference pattern 5 is formed or processed into the surface of the reference device 4 as a recess and / or as a protrusion. The reference pattern 5 can be formed in this case so that it is only used for the purpose of detection by the detection device of the augmented reality system 1 and thus has no other functions, such as for fastening and / or guiding and / or centering of components during the assembly process. In other words, the reference pattern 5 is preferably optimized only for the purpose of rapid and reliable, in particular three-dimensional detection of the relative position and / or orientation of the augmented reality system 1 with the detection device and the reference pattern 5 or the reference device 4 with the reference pattern 5.

[0037] The at least one reference pattern 5 can have, for example, an area of ​​at least 2 cm 2 , preferably at least 5cm 2 , particularly preferably at least 10 cm 2 , preferably at least 100cm 2 , further preferably at least 250cm 2 The area of ​​the reference pattern may be, for example, a maximum of 1000 cm 2 , preferably up to 500cm 2 , especially preferably up to 250cm 2 、Highest preferred maximum 100cm 2 , further preferably a maximum of 25cm 2 .

[0038] The reference pattern 5 can, for example, have an optically detectable structure for detection by a detection device of the augmented reality system 1, and the reference pattern is suitable for generating image information 6, wherein the generated image information has an accuracy of at least 1.0 mm, preferably at least 0.5 mm, particularly preferably at least 0.25 mm, and most preferably at least 0.1 mm.

[0039] At least one reference pattern 5 can, for example, have, in addition to its planar extension, also an extension extending into depth, i.e. extending perpendicularly to the main extension plane, wherein (a) its depth 8 is a maximum of 20 mm, preferably a maximum of 10 mm, particularly preferably a maximum of 5 mm, and most preferably a maximum of 3 mm, and / or (b) its depth 8 is at least 0.25 mm, preferably at least 0.35 mm, particularly preferably at least 0.5 mm, and most preferably at least 1.0 mm.

[0040] The at least one reference pattern 5 can, for example, have at least three defined depth ranges 9, 10, 11, the reference pattern 5 comprising: Figure 2, where the reference pattern 5 is schematically shown in a side view, preferably shown as a section. The first depth range 9 can, for example, have a distance 12, 13, 14 of 0.5 mm to 100 mm from the second depth range 10 and / or the second depth range 10 can have a distance 12, 13, 14 of 0.5 mm to 100 mm from the third depth range 11. Preferably, the distances 12, 13, 14 between the depth ranges 9, 10, 11 are each between 1 mm and 50 mm.

[0041] It is possible that the first reference pattern 5 is arranged or formed on a first component of the reference device 4 and the second reference pattern 5' is arranged or formed on a second component of the reference device 4, and that the first and second reference patterns 5, 5' are detected by means of a detection device of the augmented reality system 1 and an analysis of the position and / or orientation of the first reference pattern 5 relative to the second reference pattern 5' is carried out and reference pattern status information indicating the position and / or orientation of the first reference pattern 5 relative to the second reference pattern 5' is generated. With the reference pattern status information, it is possible to report on possible changes of the reference device 4. For example, changes in accuracy and thereby changes in the position and / or orientation of the first component relative to the other components of the reference device 4 may occur due to aging and / or due to repeated installation and removal of the first component of the reference device 4. By having at least one reference pattern 5, 5' not only the first component of the reference device 4 but also the at least one other component, it is possible to compare and / or compensate the positions and / or orientations of the reference patterns 5, 5' relative to each other and to compare this information with predefined theoretical information indicating the theoretical state or theoretical position and / or theoretical orientation of the reference device 4 and thereby the two reference patterns 5, 5'. As soon as the actual state determined in this way deviates from the target state by a defined degree, a warning and / or an error message can be output. In this way, changes of reference device 4 caused by aging can be determined.

[0042] Finally, the present invention comprises an arrangement comprising a test object 2 and a reference device 4 as well as an augmented reality system 1 , wherein the arrangement is provided for carrying out the method described here.

[0043] Reference numerals list

[0044] 1Augmented Reality System

[0045] 2 Test piece

[0046] 3 4 Acceptance section

[0047] 4 Reference Equipment

[0048] 5First reference pattern

[0049] 5' Second reference pattern

[0050] 6 Image Information

[0051] 7 output units

[0052] 8 Depth

[0053] 9 5 First Depth Range

[0054] 10 5 Second Depth Range

[0055] 11 5 third depth range

[0056] 12 is the first distance between 9 and 10

[0057] 13 is the second distance between 10 and 11

[0058] 14 is the third distance between 9 and 11

Claims

1. A method for carrying out a test assembly of a test piece (2) to be assembled on a vehicle body, the method comprising the following method steps: - fitting the test piece (2) onto the receiving section (3) of the reference device (4); - using a detection device of the augmented reality system (1) to detect at least one reference pattern (5) arranged or formed in or on the reference device (4) and to generate reference pattern detection information; - generating image information (6), wherein the image information (6) depends on the reference pattern information and describes a predefined theoretical state of the test piece (2) and a theoretical orientation and / or theoretical position of the test piece (2) relative to the reference device (4) and is output as visually perceptible information on an output unit (7) of the augmented reality system (1).

2. The method according to claim 1, characterized in that The image information (6) describes a target state of the reference device (4).

3. The method according to claim 1 or 2, characterized in that At least one reference pattern (5) is used which is designed as a separate element from the reference device (4) and is fastened or fastenable to the reference device (4) in a force-fitting and / or material-fitting and / or form-fitting manner.

4. The method according to any one of the preceding claims, characterized in that At least one reference pattern (5) is used which is formed integrally with the reference device (4), preferably the reference pattern (5) being formed or worked into the surface of the reference device (4) as a recess and / or as a projection.

5. The method according to any one of the preceding claims, characterized in that Use at least one reference pattern (5) having an area of ​​at least 2 cm 2 , preferably at least 5cm 2 , particularly preferably at least 10 cm 2 , preferably at least 100cm 2 , further preferably at least 250cm 2 .

6. The method according to any one of the preceding claims, characterized in that Use at least one reference pattern (5) having an area of ​​at most 1000 cm 2 , preferably up to 500cm 2 , especially preferably up to 250cm 2 、Highest preferred maximum 100cm 2 , further preferably a maximum of 25cm 2 .

7. The method according to any one of the preceding claims, characterized in that At least one reference pattern (5) is used, which has an optically detectable structure for detection by the detection device and for generating the image information (6), which has an accuracy of at least 1.0 mm, preferably at least 0.5 mm, particularly preferably at least 0.25 mm, and most preferably at least 0.1 mm.

8. The method according to any one of the preceding claims, characterized in that Using at least one reference pattern (5) as follows, - the depth (8) of the reference pattern is at most 20 mm, preferably at most 10 mm, particularly preferably at most 5 mm, most preferably at most 3 mm, and / or The depth (8) of the reference pattern is at least 0.25 mm, preferably at least 0.35 mm, particularly preferably at least 0.5 mm, most preferably at least 1.0 mm.

9. The method according to any one of the preceding claims, characterized in that At least one reference pattern (5) is used, which comprises at least three defined depth ranges (9, 10), wherein a first depth range (9) and a second depth range (10) and / or a second depth range (10) and a third depth range (11) have a distance (12, 13, 14) of 0.5 mm to 100 mm, preferably a distance (12, 13, 14) of 1 mm to 50 mm.

10. The method according to any one of the preceding claims, characterized in that A first reference pattern (5) is arranged or formed on a first component of the reference device (4) and a second reference pattern (5') is arranged or formed on a second component of the reference device (4), and the first and second reference patterns (5, 5') are detected by means of the detection device of the augmented reality system and an evaluation of the position and / or orientation of the first reference pattern (5) relative to the second reference pattern (5') is performed and reference pattern status information indicating the position and / or orientation of the first reference pattern (5) relative to the second reference pattern (5') is generated.

11. An arrangement comprising a test piece (2), a reference device (4) and an augmented reality system (1), wherein: The arrangement is provided for carrying out a method according to one of the preceding claims.

Images