METHOD FOR CREATING AT LEAST ONE IMAGES OF AT LEAST ONE INTERIOR SPACE

Description

[0001] The invention relates to a method for creating at least one image of at least one interior of a building by means of an unmanned aerial vehicle according to the preamble of patent claim 1.

[0002] It is well known that the construction of a building and / or the interior work after its completion are often carried out by different companies. Since such construction measures are generally associated with high costs for the client, the respective companies working on a construction site are under time pressure to complete the commissioned work. Furthermore, investors or developers of a building are usually interested in the construction progress of their building in order to be able to use the building as quickly as possible. Furthermore, it is common practice for the construction progress of a building to be documented to enable retrospective reviews. Furthermore, drones are known to be used to create images, which makes the creation of images much easier, especially in difficult situations.

[0003] The disadvantage of using different companies on a single construction site is that the time interval for completion of the work is very short, which puts the construction workers under constant time pressure. As a result, errors or human error, such as incorrectly laid cable ducts or incorrectly positioned electrical outlets, can easily and quickly arise. The cause of these errors is often very difficult for the clients to subsequently determine, which can lead to lengthy and costly disputes.

[0004] From the state of the art regarding systems and methods for creating images of a building interior using an unmanned aerial vehicle, the disclosures KR 101839111 B1, CN 110398982 A and WO 2018 / 089268 A1 are known.

[0005] The object of the invention is therefore to provide a method of the type mentioned at the outset, with which the disadvantages mentioned can be avoided and with which a comprehensible and retrospective assessment of at least one interior space of a building is made possible.

[0006] According to the invention, this is achieved by the features of patent claim 1.

[0007] This has the advantage that an image of at least one interior room of a building can be created, which can then be used in a retrospective assessment. This means that even a long time after the construction of a building or after its interior work has been completed, construction errors can be discovered and attributed to the person responsible or the person responsible for the work. By taking the reference marking into account when creating the at least one image, any deviation of the construction work carried out from a predetermined construction plan can be precisely, easily and quickly derived or identified from the at least one image. By creating the at least one image at a predetermined flight altitude of the camera system, image errors such as image field curvature and / or distortion can be taken into account particularly easily and precisely when determining a height from the at least one image.Since the reference marking can also be used by workers carrying out construction work in the building as a height reference marking for their work, any deviation of the work carried out by a worker from a specified construction plan can be quickly and precisely identified or verified using the at least one image. This means, for example, that the height of a socket installed too deep by a worker, as well as the cable duct leading to the socket, can be checked even years later using the at least one image, or the height of the socket and the height of the cable duct can be determined from the at least one image. Furthermore, the exact position of construction work carried out on a wall, ceiling or floor during the interior work on a building can be determined or measured from the at least one image even years later.By relating the at least one image to the reference marking, the at least one image can, in contrast to currently known building photographs or photographs of at least one interior space, also be advantageously used to clarify the cause of damage in a legal dispute.

[0008] The invention further relates to the use of an unmanned aerial vehicle for creating at least one image of at least one interior of a building, according to patent claim 10.

[0009] The invention therefore further aims to provide an unmanned aerial vehicle of the type mentioned above, which avoids the aforementioned disadvantages and enables a comprehensible and retrospective assessment of at least one interior space of a building. According to the invention, this is achieved by the features of patent claim 10. The advantages of the unmanned aerial vehicle correspond to the advantages of the above-mentioned method.

[0010] The subclaims relate to further advantageous embodiments of the invention. Express reference is hereby made to the wording of the patent claims, whereby the patent claims are incorporated into the description at this point by reference and are deemed to be reproduced verbatim.

[0011] The invention will be described in more detail with reference to the accompanying drawings, in which only preferred embodiments are shown by way of example. In the drawings: Fig. 1 a schematic diagram for the creation of at least one image of at least one interior of a building by means of an unmanned aerial vehicle, Fig. 2 a schematic diagram for aligning the height of the camera system to a given height of a reference mark.

[0012] The Fig. 1 bis 2 show at least parts of a preferred embodiment of a method for creating at least one image of at least one interior space 1 of a building by means of an unmanned flying object 2, wherein the unmanned flying object 2 comprises a camera system 3 for creating the at least one image, wherein a reference marking 4 is arranged at a predetermined height 5 relative to an existing or planned floor 6 of the at least one interior space 1, wherein at least one predetermined fixed point 7 in the at least one interior space 1 is controlled by the unmanned flying object 2 and the unmanned flying object 2 is positioned at the at least one predetermined fixed point 7, wherein the flight height of the camera system 8 is aligned according to the predetermined height of the reference marking 5, wherein the at least one image is created by the camera system 3 at the at least one predetermined fixed point 7.

[0013] Furthermore, an unmanned aerial vehicle 2 is provided for creating at least one image of at least one interior space 1 of a building.

[0014] This provides the advantage that an image of at least one interior space 1 of a building can be created, which can be used in a retrospective assessment. Therefore, even a long time later, after the construction of a building or after its interior work, construction defects can be discovered and attributed to the person responsible or the person responsible for the work to be carried out. By taking the reference marking 4 into account when creating at least one image, any deviation of the completed construction work from a specified construction plan can be precisely, easily, and quickly derived or identified from the at least one image.By creating the at least one image at a predetermined flight altitude of the camera system 8, image errors such as field curvature and / or distortion can be taken into account particularly easily and precisely when determining a height from the at least one image. Since the reference marking 4 can also be used by workers carrying out construction work in the building as a height reference marking for their work, a deviation of the work carried out by a worker from a predetermined construction plan can be quickly and precisely identified or verified using the at least one image. This means, for example, that the height of a socket installed too low by a worker, as well as the cable duct leading to the socket, can be verified even years later using the at least one image, or the height of the socket and the height of the cable duct can be determined from the at least one image.Furthermore, the exact position of construction work carried out on a wall, ceiling, or floor during interior construction of a building can be determined or measured from the at least one image, even years later. By relating the at least one image to the reference marking 4, the at least one image can also be advantageously used to clarify the cause of damage in a legal dispute, in contrast to currently known building photographs or photographs of at least one interior space 1.

[0015] The method is provided for creating at least one image of at least one interior space 1 of a building using an unmanned aerial vehicle 2. The method can preferably also be used to create two, three, or more images of two, three, or more interior spaces of a building. The proposed method can preferably comprise an imaging step, wherein the at least one image is created in the imaging step.

[0016] The image can be a two-dimensional image and / or a three-dimensional image.

[0017] Preferably, the at least one image of the at least one interior space 1 can be created from one or more individual images. Individual images of the at least one interior space 1 are preferably created. In particular, several individual images are combined to form one image. Such programs for combining images are known from the prior art. Therefore, the creation of combined images will not be explained in detail here.

[0018] Preferably, the individual images are combined in such a way that a three-dimensional image of at least one interior space 1 is obtained.

[0019] Alternatively, the at least one image is created from only one image of the at least one interior space 1.

[0020] The unmanned aerial vehicle 2 is preferably an aircraft, in particular a drone. However, any type of unmanned aerial vehicle capable of maintaining a fixed position in the air, such as a small helicopter, may be used. "Unmanned" here means that the unmanned aerial vehicle 2 is operated without a crew on board.

[0021] The unmanned aerial vehicle 2 preferably comprises a computer. In particular, the unmanned aerial vehicle 2 is navigated by means of the computer.

[0022] Preferably, the computer is a minicomputer, particularly preferably a single-board computer, in particular a Raspberry Pi. In particular, the computer may include an internal memory.

[0023] Alternatively, the unmanned aerial vehicle 2 can also be navigated via a remote control.

[0024] It is provided that the unmanned aerial vehicle 2 comprises a camera system 3 for creating the at least one image. Preferably, the camera system 3 can comprise at least one camera. In particular, the camera system 3 can comprise two, three, or more cameras. In particular, the cameras can be arranged at a distance from one another.

[0025] Preferably, the camera system 3 may comprise only one camera.

[0026] It is preferably provided that the at least one image of the at least one interior space 1 is created with the at least one camera.

[0027] Preferably, the at least one camera of the camera system 3 can be an omnidirectional camera. An omnidirectional camera is also known as a full-sphere camera, 360-degree camera, or VR camera.

[0028] Preferably, the camera system 3 and / or the at least one camera can be pivotably arranged and / or attached to the unmanned flying object 2.

[0029] Alternatively, the camera system 3 and / or the at least one camera can be rigidly arranged and / or attached to the unmanned aerial vehicle 2.

[0030] Preferably, the at least one camera can comprise at least one lens, in particular a wide-angle lens and / or a fisheye lens. In particular, the wide-angle lens and / or the fisheye lens can be used to create the at least one image.

[0031] Alternatively, the at least one camera may also comprise a standard lens and / or a telephoto lens.

[0032] Preferably, the at least one camera may comprise a zoom lens and / or a fixed focal length.

[0033] The at least one camera, in particular the at least one lens, can preferably comprise at least one lens or at least one lens system.

[0034] Particularly preferably, the at least one lens can be a wide-angle lens and / or a fisheye lens.

[0035] Preferably, the camera system 3 can comprise an internal and / or external memory. Images are preferably stored on the internal and / or external memory of the camera system 3.

[0036] In particular, the individual images of the at least one interior space 1 can be stored on the internal and / or external memory of the camera system 3.

[0037] In particular, the external memory of the camera system 3 can be a memory card. The memory card is preferably a rewritable storage medium, with the data being stored in particular using flash memory technology. The memory card can preferably be a CompactFlash, a Memory Stick, a Multimedia Card, a Secure Digital Memory Card, a Smart Media, an xD-Picture Card, and / or an XQD.

[0038] The unmanned aerial vehicle 2 can preferably comprise a wireless communication device. In particular, the wireless communication device can use WLAN transmission technology and / or mobile radio technology.

[0039] Preferably, the at least one image and / or the individual images can be transmitted to an external server by means of the wireless communication device, wherein the at least one image and / or the individual images are stored in particular in the memory of the external server.

[0040] In particular, the images stored in the internal and / or external memory of the camera system 3 can be used for the retrospective assessment of at least one interior space 1 of the building.

[0041] In particular, the images stored on the external server can be used for the retrospective assessment of at least one interior space 1 of the building.

[0042] It is provided that a reference marking 4 is arranged at a predetermined height 5 relative to an existing or planned floor 6 of the at least one interior space 1. The existing floor 6 is preferably the floor that is already located in the at least one interior space 1 when the at least one image is created. The planned floor 6 is preferably the floor that will be arranged in the at least one interior space 1 after its installation and is not yet present in the at least one interior space 1 at the time the at least one image is created.

[0043] In particular, the planned floor 6 is the floor which, after its laying in the shell construction, is arranged in the at least one interior space 1.

[0044] Preferably, the reference marking 4 is an optical marking.

[0045] Alternatively, the reference marker 4 can also be a transmitter. The transmitter is preferably attached at a predetermined height relative to an existing or planned floor 6 of the at least one interior space 1. This provides the advantage that no visual marking is required, allowing the reference marker 4 to remain in place even after the walls of the at least one interior space 1 have been painted. This allows the originally arranged reference marker 4 to be used even a long time later, after a change of apartment owner or a change of tenant, during a renovation of the at least one interior space 1.

[0046] Preferably, the reference marking 4 is arranged on at least one wall of the at least one interior space 1.

[0047] Particularly preferably, the reference marking 4 is arranged on two, three or more walls of the at least one interior space 1.

[0048] Alternatively, the reference marking 4 is arranged only on one wall of the at least one interior space 1.

[0049] In particular, the reference marker 4 is arranged temporally earlier in the at least one interior space 1. The temporal reference "temporarily earlier" refers in particular to a step before the at least one predetermined fixed point 7 is approached by the unmanned aerial vehicle 2.

[0050] It is provided that at least one predetermined fixed point 7 in the at least one interior space 1 is controlled by the unmanned aerial vehicle 2. The at least one predetermined fixed point 7 is preferably a location in the at least one interior space 1 with predetermined position coordinates. Furthermore, the predetermined fixed point 7 can also be referred to as a reference point, a fixed point, a survey point, a measurement point, and / or a "picture point."

[0051] Preferably, a first predetermined fixed point 7 in a first interior space 1 is controlled by the unmanned flying object 2, wherein particularly preferably at least one further predetermined fixed point 7 in the first interior space 1 is controlled subsequently after the creation of a first image at the first predetermined fixed point 7.

[0052] Alternatively, it can preferably be provided that only one predetermined fixed point 7 in the at least one interior space 1 is controlled by the unmanned flying object 2.

[0053] Preferably, the at least one predetermined fixed point 7, in particular the position coordinates and / or the GPS coordinates of the at least one predetermined fixed point 7, are stored on the internal memory of the computer.

[0054] Preferably, the at least one predetermined fixed point 7 can be controlled by the unmanned aerial vehicle 2 in a periodic and / or non-periodic time interval. In particular, the time interval can comprise days, weeks, and / or months.

[0055] Furthermore, it is provided that the unmanned aerial vehicle 2 is positioned at the predetermined fixed point 7. Positioning the unmanned aerial vehicle 2 includes, in particular, assuming a predetermined position. The predetermined position can, in particular, be a horizontal orientation and / or an orientation of the unmanned aerial vehicle 2 that deviates from a horizontal orientation.

[0056] In particular, the positioning of the unmanned aerial vehicle 2 at the predetermined fixed point 7 can include assuming a rest position in the air. The rest position of the unmanned aerial vehicle 2 in the air is preferably a position in which the unmanned aerial vehicle 2 performs essentially no spatial movement. In particular, the rest position of the unmanned aerial vehicle 2 in the air is a position in which a highly sharp image can be created. A highly sharp image is, in particular, a blur-free image and / or a blur-free individual image.

[0057] The unmanned aerial vehicle 2 can preferably use orientation points, in particular diodes, attached to the structure for controlling the at least one predetermined fixed point 7 and / or for positioning at the at least one predetermined fixed point 7. In particular, the orientation points attached to the structure, in particular the diodes, can be used by the unmanned aerial vehicle 2 for stabilization in the air. In particular, the orientation points attached to the structure are attached to the walls.

[0058] Preferably, it can be provided that the unmanned aerial vehicle 2 uses the orientation points attached to the structure, in particular the diodes, for orientation in the structure.

[0059] Preferably, the proposed method may comprise a positioning step, wherein the unmanned aerial object 2 is positioned in the positioning step.

[0060] Preferably, the mapping step is carried out before the positioning step.

[0061] It is preferably provided that the unmanned flying object 2 creates at least one image of at least one interior space 1 in a horizontal orientation.

[0062] Alternatively, it can be provided that the unmanned flying object 2 creates the at least one image of the at least one interior space 1 at a predetermined angle to a horizontal position of the unmanned flying object 2. This results in the advantage that, with a rigid arrangement of the camera system 3 and / or the at least one camera on the unmanned flying object 2, the room height can be taken into account when creating individual images. As a result, particularly when using only one camera with a fixed focal length, the unmanned flying object 2 can be quickly and easily adjusted to the room height before an individual image of the at least one interior space 1 is created. As a result, the unmanned flying object 2 can assume an inclined position in the air, whereby the largest possible area of the at least one interior space 1 can be recorded when creating an individual image of the at least one interior space 1.

[0063] It is intended that the flight height of the camera system 8 is aligned according to the specified height of the reference marking 5.

[0064] Preferably, the flight height of the camera system 8 can be aligned such that the reference marking 4 is centered in a created image.

[0065] Alternatively, the camera system 3 can be aligned such that no distortion of the reference marking 4 occurs in the at least one image.

[0066] In particular, the unmanned aerial vehicle 2 can comprise a reflective light barrier. The reflective light barrier can preferably be used to align the flight altitude of the camera system 8 according to the specified height of the reference marking 5.

[0067] The flight height of the camera system 8 is preferably the height, in particular the vertical height, above the existing or planned floor 6 of at least one interior space 1. The flight height of the camera system 8 is preferably dependent on the camera system 3 used.

[0068] In particular, the flight height of the camera system 8 of a pivotable camera is the height at which the pivot point of the camera system 3 and / or the camera is located relative to the existing or planned ground 6.

[0069] In particular, the flight altitude of the camera system 8 of a 360-degree camera is the height at which the lens center of a lens of an objective of the at least one camera is located relative to the existing or planned ground 6.

[0070] Particularly preferably, the flight height of the camera system 8 is aligned according to the predetermined height of the reference marking 5 during the control of the at least one predetermined fixed point 7 and / or during the positioning at the at least one predetermined fixed point 7.

[0071] In particular, the flight height of the camera system 8 corresponds to the viewpoint of at least one image created.

[0072] It is provided that the camera system 3 creates at least one image at the at least one predetermined fixed point 7.

[0073] Preferably, it can be provided that the at least one image comprises only a partial area of the at least one interior space 1.

[0074] Alternatively, the at least one image can be created of the entire interior space 1. Preferably, the entire interior space 1 is a space enclosed by walls, a ceiling, and a floor.

[0075] Preferably, the camera system 3 and / or the unmanned aerial vehicle 2 can rotate and / or tilt by a predetermined horizontal angle between the creation of each individual image when creating at least one image from individual images. This results in the advantage that the entire interior 1 can be optimally imaged from the at least one predetermined fixed point 7.

[0076] Preferably, the camera system 3 is aligned within a height tolerance range 9, which extends away from the reference marking 4. In Fig. 2 The height tolerance range 9 is shown schematically and by way of example in the I-shape, with the two short horizontal crossbars of the I-shape delimiting the height tolerance range 9. Furthermore, in Fig. 2 It can be seen that the camera system 3 is arranged within the height tolerance range 9. It should be noted that the Fig. 2 is merely a schematic diagram, from which no height relationships can be derived. Furthermore, Fig. 2 It can be seen how the height tolerance range 9 extends away from the reference marking 4. The height tolerance range 9 preferably extends symmetrically from the reference marking 4 in equal parts upwards towards the ceiling and downwards towards the floor. The reference marking 4 is arranged at a predetermined height, which is indicated by the double arrow in Fig. 2 Furthermore, the flight altitude of the camera system 8 is also indicated by a double arrow in Fig. 2 The arrangement of the camera system 3 within the height tolerance range 9 results in the advantage that a precise alignment of the camera system 3 according to the specified height of the reference marking 4 can be carried out, whereby height relationships can be derived from the at least one image.

[0077] Preferably, the height tolerance range 9 corresponds to a maximum of 5%, particularly preferably a maximum of 2%, in particular a maximum of 1% of the height of the at least one interior space 1 of the building. This results in the advantage that the at least one image can be created with a particularly precise reference to the reference marking 4.

[0078] It is preferably provided that the at least one image is created when the camera system 3 is at the predetermined height of the reference marking 5. In particular, slight deviations can occur when controlling the unmanned aerial vehicle 2, wherein the flight altitude of the camera system 8 is at the predetermined height of the reference marking 5 within the slight deviation when the at least one image is created. A slight deviation preferably corresponds to a value of less than 1% of the height of the at least one interior space 1 of the building. This results in the advantage that the at least one image can be created with a particularly precise reference to the reference marking 4. This allows images with different time stamps to be compared with one another as precisely as possible. Furthermore, this results in the advantage that dimensions or lengths can be derived orcan be read out. This means that at least one image can be used to prove a construction defect even long after the construction of a building or its interior work.

[0079] By creating the at least one image when the camera system 3 is at the predetermined height of the reference marking 5, a height can be determined from the at least one image even if the reference marking 4 is not depicted in the at least one image. This results in the advantage that a determination of the flight height of the camera system 8 is not required to determine or measure a height from the at least one image, since the predetermined height of the reference marking 4 is known and the flight height of the camera system 8 is thus predetermined by the predetermined height of the reference marking 5. As a result, the viewing point on the at least one image created advantageously corresponds to the predetermined height of the reference marking 5.As a result, for example, the height of a socket can be determined quickly and easily from the at least one image, since the flight height of the camera system 8 and the predetermined fixed point 7 are known.

[0080] Preferably, the reference marking 4 is the level line of the building. The level line is a known marking at significant locations in the shell and is preferably used as a reference height for installations whose installation heights correspond to a planning specification. Well-known examples for which the level line is used for planning and measuring are, in particular, electrical installations such as switches and sockets, sanitary facilities such as fittings and drains, as well as door frames and the height of a floor. This results in the advantage that a marking measured as precisely as possible is used to create the at least one image, which is usually present on every construction site and which workers can use to orient themselves when carrying out work that is to be carried out at a certain height.This makes it particularly advantageous to compare at least one image particularly easily with the construction plan of the building, which makes it particularly easy to detect construction errors.

[0081] Alternatively, it can be provided that the reference marking 4 is arranged at a predetermined height relative to an existing or planned floor 6 of the at least one interior space 1, independent of the building's level line. It can be provided that the reference marking 4 is arranged at a predetermined height difference relative to the building's level line. Furthermore, it can be provided that the predetermined height difference of the reference marking 4 relative to the level line is dependent on the height of the at least one interior space 1.

[0082] It is preferably provided that the unmanned flying object 2 uses distance sensors to control the at least one predetermined fixed point 7 and / or to position itself at the at least one predetermined fixed point 7.

[0083] Preferably, the distance sensors are used for centering in the at least one interior space 1 of the unmanned aerial vehicle 2. This results in the advantage that the unmanned aerial vehicle 2 can be precisely positioned in the at least one interior space 1, whereby distances to walls in the at least one interior space 1 can be precisely measured and the unmanned aerial vehicle 2 can be arranged at a particularly precise distance from the walls in the at least one interior space 1.

[0084] In particular, the distance sensors can be laser distance sensors. Preferably, the distance sensors can use the triangulation principle and / or a time-of-flight measurement for distance measurement.

[0085] Alternatively, the unmanned aerial vehicle 2 can use a building plan to control the at least one predetermined fixed point 7 and to position itself at the at least one predetermined fixed point 7. In particular, the building plan can be stored in the internal memory of the computer of the unmanned aerial vehicle 2.

[0086] Preferably, the at least one interior space 1 is controlled autonomously by the unmanned aerial vehicle 2 to create the at least one image. Particularly preferably, the at least one image of the at least one interior space 1 can be created autonomously by the camera system 3 of the unmanned aerial vehicle 2. This results in the advantage that the unmanned aircraft can create the at least one image of the at least one interior space 1 without remote control of the unmanned aerial vehicle 2.

[0087] Preferably, it can be provided that after the creation of at least one image, at least one further predetermined fixed point 7 in another interior space 1 of the structure is controlled by the unmanned aerial vehicle 2. This results in the advantage that several images can be created without interrupting the flight of the unmanned aerial vehicle 2, thereby saving costs and time in creating multiple images.

[0088] In Fig. 1 it is evident how the unmanned flying object 2 flies through a structure or a building. On its way to the at least one predetermined fixed point 7, the unmanned flying object 2 flies from a corridor into the at least one interior space 1, steers to the at least one predetermined fixed point 7 in the at least one interior space 1, and positions itself at the at least one predetermined fixed point 7. Subsequently or simultaneously during the steerage and / or positioning at the at least one predetermined fixed point 7, the unmanned flying object 2 aligns itself, preferably with the flight altitude of the camera system 8, according to the predetermined height of the reference marking 5, whereby the at least one image is created. As in Fig. 1As is further preferably shown, the unmanned flying object 2 flies out of the at least one interior space 1 after the creation of the at least one image, along the corridor to a further interior space 1 of the building, controls at least one further predetermined fixed point 7 in the further interior space 1, positions itself at the at least one further predetermined fixed point 7 and creates at least one further image of the further interior space 1 there.

[0089] Preferably, the camera system 3 of the unmanned aerial vehicle 2 can create at least one image of each interior space 1 of the building.

[0090] Preferably, the camera system 3 of the unmanned aerial vehicle 2 can create at least one image of each interior space 1 of a floor of the building.

[0091] Preferably, the camera system 3 of the unmanned aerial vehicle 2 can create at least one image from each interior 1 of an apartment.

[0092] Particularly preferably, the at least one image can be used to create a building plan of the structure.

[0093] Particularly preferably, the at least one image can be used to create a three-dimensional representation of the at least one interior space 1. This results in the advantage that a particularly accurate representation of the at least one interior space 1 can be created by using the reference marking 4.

[0094] Particularly preferably, the unmanned aerial vehicle 2 can be launched from a starting point. In particular, the first predetermined fixed point 7 in the first interior space 1 is approached by the unmanned aerial vehicle 2 from the starting point. Particularly preferably, the starting point can be any point inside and / or outside the structure.

[0095] The following are principles for understanding and interpreting the disclosure in question.

[0096] Characteristics are usually introduced with an indefinite article, "ein, eine, eines, einer." Therefore, unless the context indicates otherwise, "ein, eine, eines, einer" is not to be understood as a number.

[0097] The conjunction "or" is to be interpreted as inclusive and not exclusive. Unless the context indicates otherwise, "A or B" also includes "A and B," where "A" and "B" represent any characteristics.

[0098] For ranges of values, the endpoints are included unless the context indicates otherwise.

Claims

1. Method for producing at least one image of at least one interior space (1) of a building by means of an unmanned flying object (2), wherein the unmanned flying object (2) comprises a camera system (3) for producing the at least one image, wherein at least one predetermined fixed point (7) in the at least one interior space (1) is targeted by the unmanned flying object (2) and the unmanned flying object (2) is positioned at the at least one predetermined fixed point (7), wherein the at least one image is produced at the at least one predetermined fixed point (7) by the camera system (3), characterised in that a reference mark (4) is arranged at a predetermined height (5) relative to an existing or planned floor (6) of the at least one interior space (1), and in that the flight height of the camera system (8) is aligned with the predetermined height of the reference mark (5).

2. Method according to claim 1, characterised in that the camera system (3) is aligned within a height tolerance range (9) which extends away from the reference mark (4).

3. Method according to claim 2, characterised in that the height tolerance range (9) corresponds to a maximum of 5%, particularly preferably a maximum of 2%, in particular a maximum of 1% of the height of the at least one interior space (1) of the structure.

4. Method according to one of claims 1 to 3, characterised in that the at least one image is created when the camera system (3) is at the specified height of the reference mark (5).

5. Method according to one of claims 1 to 4, characterised in that the reference mark (4) is a metre mark on the building.

6. Method according to one of claims 1 to 5, characterised in that the unmanned flying object (2) uses distance sensors to navigate to the at least one predetermined fixed point (7) and / or to position itself at the at least one predetermined fixed point (7).

7. Method according to claim 6, characterised in that the distance sensors are used for centring in the at least one interior space (1) of the unmanned flying object (2).

8. Method according to one of claims 1 to 7, characterised in that the at least one interior space (1) is autonomously controlled for the creation of the at least one image of the unmanned flying object (2).

9. Method according to one of claims 1 to 8, characterised in that, after the at least one image has been created, at least one further predetermined fixed point (7) in a further interior space (1) of the structure is targeted by the unmanned flying object (2).

10. Use of an unmanned flying object (2) for producing at least one image of at least one interior space (1) of a structure, wherein the unmanned flying object (2) comprises a camera system (3), wherein the at least one image is produced by the camera system (3) according to a method according to one of claims 1 to 9.