Methods and systems for assisting users during the installation, maintenance, and / or commissioning of elevator systems.

Abstract

Disclosed are a method and system (100) for assisting a user during the installation, maintenance and / or commissioning of an elevator system (30). The method involves creating a digital representation (410) of the elevator system (30) and its physical environment, such as a current or future physical environment, such as a digital twin. The method also involves forming (420) a display device (26) having or connected to an optical sensor (28), such as a digital camera, which performs the digital representation; detecting a part (37) of the physical environment using the optical sensor (28); comparing the part (37) with a corresponding part in the digital representation, where the part (37) is visibly arranged on the display device (26) during the comparison.

Description

Technical Field

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[0001] The present invention relates broadly to elevator systems. In particular, but not limited to, the present invention relates to methods and systems for assisting users, such as maintenance personnel, during the installation, maintenance and / or commissioning of elevator systems. Background

[0002] When installing various components and devices of an elevator system, manual work by repairmen or maintenance personnel is required. Generally, operations such as manual adjustment using special tools are performed. In order to perform such operations, maintenance personnel need to have special skills and, in many cases, only those with rich experience can perform sufficient work.

[0003] Therefore, there are several problems in the installation process. For example, the quality varies greatly depending on who installs and maintains the system. Since all are performed manually, the quality of installation and maintenance varies greatly. Therefore, there is a need to develop methods and systems for improving the quality of elevator system installation. Summary

[0004] An object of the present invention is to provide a method and system for assisting users during the installation, maintenance and / or commissioning of elevator systems. Another object of the present invention is to provide a method and system for providing accurate feedback regarding the current elevator object being worked on to maintenance or repair personnel during the installation, maintenance and / or commissioning of an elevator.

[0005] The object of the present invention is achieved by a method and system for assisting users during the installation, maintenance and / or commissioning of elevator systems as defined in the independent patent claims of the present application.

[0006] According to a first aspect, a method for assisting a user during the installation, maintenance and / or commissioning of an elevator system is provided.

[0007] This method involves creating a digital representation, such as a digital twin, of an elevator system and its physical environment, such as the current or future physical environment. This creation includes obtaining or generating a first digital model of the physical environment, obtaining or generating several reference digital models of the elevator objects of the elevator system, and creating a digital representation by integrating the first digital model with the reference digital models.

[0008] The method further includes forming a display device, which has or is connected to an optical sensor such as a digital camera and performs digital representation. The display device is preferably augmented reality glasses that are wearable by the user and incorporate a digital camera.

[0009] This method further includes detecting a portion of the physical environment using an optical sensor such as a digital camera, and comparing that portion with a corresponding portion in a digital representation, in which case the portion is visibly arranged on a display device.

[0010] In an unspecified example, obtaining a first digital model of the physical environment may include obtaining an existing digital model of the physical environment, which may include dimensions relating to, for example, the walls, top, bottom, etc., of the elevator shaft and / or elevator machine room.

[0011] In another non-limiting example, the generation of a first digital model of the physical environment may include obtaining a three-dimensional model by conducting an on-site survey using a laser measuring instrument and / or by photography.

[0012] Furthermore, this method may include recognizing elevator objects, such as components or devices, within a portion of the physical environment.

[0013] As used in this application, the term "elevator object" may mean a component or device within an elevator shaft or elevator machine room. On the other hand, the elevator object may also mean an elevator car or a device connected to an elevator car. As can be understood from this, the elevator object may also mean a physical object related to or included in an elevator system.

[0014] In various embodiments, the method may include comparing the recognized object with a corresponding object in its digital representation. For example, the recognized object may be a safety device located inside an elevator shaft. The safety device may be recognized, for example, by a pattern or shape recognition algorithm or similar, or by input to a display device by a user who has confirmed which elevator object has been detected by the optical sensor.

[0015] In many embodiments, this method may include tracking the recognized object. Therefore, even if the user changes their position, the display device will continue to evaluate the object as long as the recognized object is within the range detected by the optical sensor.

[0016] The method may further include providing the user with instructions and / or information related to the recognized object via a display device. For example, the instructions and / or information may include tolerances for the elevator object as described above. In another example, the instructions and / or information may include one or more operating parameter values ​​for the elevator object as described above, for example, for the purpose of adjusting the operation of the elevator equipment. Alternatively, the instructions may be notifications or instructions for corrective actions.

[0017] In a preferred embodiment, providing includes, for example, using augmented reality technology, overlaying the above-mentioned instructions and / or information onto a visible portion of the display device. This allows the user to view the actual elevator object on the display device, with instructions and / or information related to the recognized elevator object displayed on the display device.

[0018] In various embodiments, the method may include detecting, as a result of comparison, the difference between the aforementioned portion and the corresponding portion if the aforementioned portion differs from the corresponding portion. Furthermore, the provision of instructions and / or information may include giving a notification or corrective action instruction to the display device based on the detection of the difference.

[0019] According to a second embodiment, a system is provided to assist users during the installation, maintenance, and / or commissioning of an elevator system.

[0020] This system comprises a display device having or connected to an optical sensor, and a data processing system, wherein the display device is configured to communicate with the data processing system.

[0021] The data processing system is configured to store digital representations, e.g., digital twins, of the elevator system and its physical environment, e.g., current or future physical environments, wherein the physical environment includes, at least, preferably in an integrated state, a first digital model of the physical environment and several reference digital models of the elevator objects of the elevator system.

[0022] The display device is configured to perform a digital representation, detect parts of the physical environment using optical sensors, and compare these parts with their corresponding parts in the digital representation, in which case the parts are visibly positioned on the display device during the comparison.

[0023] In the execution of a digital representation, as described above, it is necessary to first obtain the digital representation (e.g., using laser scanning and / or imaging means), or it may even be necessary to create it.

[0024] In a preferred embodiment, the display device may be augmented reality glasses or other "smart glasses". These glasses have a display on the lenses and may preferably include a built-in digital camera facing a direction different from that of the user.

[0025] In some other embodiments, the display device may be a portable computer such as a tablet computer or a smartphone.

[0026] In yet another embodiment, the display device may be connected only to an independent optical sensor such as one or more digital cameras.

[0027] In various embodiments, the data processing system may be a local processing system of an elevator system. The display device may be connected to the local processing system via an internal wireless or wired network of the elevator system. [[ID=第十七条]]

[0028] In another embodiment, the data processing system may be a cloud-based processing system or other such remote server system.

[0029] Also, the system may be configured to recognize elevator objects, such as components or devices, within a portion of the physical environment.

[0030] In a preferred embodiment, the system may be configured to compare the recognized object with the corresponding object in the digital representation. Also, the system may be configured to track the recognized object.

[0031] Furthermore, the system may be configured to provide the user with instructions and / or information related to the recognized object via a display device. In some embodiments, providing such instructions and / or information may include, for example, using augmented reality technology to overlay the instructions and / or information on a portion displayed on the display device.

[0032] Also, the system may be configured to detect, as a result of comparison, the difference between the above-mentioned portion and the corresponding portion when the above-mentioned portion is different from the corresponding portion. Providing such instructions and / or information may include giving a notification or a correction measure instruction to the display device based on the detected difference.

[0033] In various embodiments, the instructions and / or information may include the tolerance related to the elevator object described above.

[0034] In various embodiments, alternatively or additionally, the instructions and / or information may include one or more operation parameter values of the elevator object described above.

[0035] The present invention provides a method and a system for assisting a user during installation, maintenance and / or commissioning of an elevator system. The present invention compares the actual installation in the current situation with the ideal setting using a digital representation including a digital model, i.e., a "virtual reference model", when performing the commissioning operation of the elevator, and gives accurate and practical advice to the installer, the maintenance staff or the technician during the installation and maintenance work of the elevator. In this regard, the present invention provides an advantage exceeding known solutions. By using the method and the system, while the worker is performing the installation and maintenance work, clear and practical instructions can be given to the worker to reduce errors during the installation and maintenance work. Also, since the need for manual work during elevator operation is reduced, the system can enhance usability, which can be inferred from the reduction of the unexpected maintenance request rate by the customer. As a result, the working time required for calibration and adjustment after installation and during normal maintenance is reduced.

[0036] In various embodiments, the skills and experience of installers and maintenance personnel, as well as the need for subsequent inspections and readjustments, are reduced. At the same time, quality is improved by comparing the digital representation with the actual elevator system installation and physical environment, enabling standard installation and maintenance within guiding tolerances.

[0037] Based on the detailed explanation below, various other advantages will become apparent to those skilled in the art.

[0038] In this application, the phrase "several" refers to any positive integer starting from 1, such as 1, 2, or 3.

[0039] The phrase "multiple" may refer to any positive integers starting from 2, such as 2, at least 2, 3, at least 3, etc.

[0040] The terms “first,” “second,” and “third” are used in this application to distinguish one element from another, and do not imply any particular priority or order unless otherwise specified.

[0041] The exemplary embodiments of the present invention shown in this application should not be construed as limiting the scope of the appended claims. The verb “to provide” is used here as an open limitation and does not exclude the existence of configurations not described. The configurations described in the appended claims can be freely combined with each other unless otherwise explicitly stated.

[0042] Novel configurations considered as features of the present invention are specifically described in the appended claims. However, the present invention itself, both its configuration and operation, along with its additional purposes and advantages, will be best understood by reading the description of the specific embodiments below in relation to the accompanying drawings. [Brief explanation of the drawing]

[0043] Some embodiments of the present invention are illustrated in the accompanying drawings, but the invention is not limited to these examples. [Figure 1] A schematic diagram of a system according to one embodiment of the present invention is shown below. [Figure 2A] and [Figure 2B] A schematic diagram of a display device according to several embodiments of the present invention is shown. [Figure 3] A schematic diagram of a display device according to several embodiments of the present invention is shown. [Figure 4] A flowchart of the method according to one embodiment of the present invention is shown. Detailed explanation

[0044] Figure 1 schematically shows a system 100 that assists the user during the installation, maintenance, and / or commissioning of the elevator system 30. The system 100 has a display device 26 having or connected to an optical sensor 28, and of course a display screen 26 that can display data, information, or instructions. That is, the display screen 26 consists of a display.

[0045] System 100 also includes a data processing system 22, such as a data server or other computer system. Furthermore, the display device 26 is arranged to communicate with the data processing system 22.

[0046] The data processing system 22 is configured to store digital representations, such as digital twins, of the elevator system 30 and its physical environment, such as the current or future physical environment. The physical environment preferably includes, in an integrated state, at least a first digital model of the physical environment and several reference digital models of elevator objects 36A to 36C located in the elevator system 30.

[0047] Furthermore, the display device 26 is configured to perform a digital representation, detect a portion 37 of the physical environment using an optical sensor 28, and compare that portion 37 with a corresponding portion in the digital representation. Here, the portion 37 is arranged to be visible on the display device.

[0048] The current physical environment refers to the case where the elevator system 30 is already installed in that environment. Therefore, the system 100 may be used, for example, to replace, repair, maintain, or inspect elevator objects 36A to 36C.

[0049] A future physical environment refers to a location where the elevator system 30 is planned to be installed. Therefore, the digital model of the physical environment may be created before installing any of the objects 36A to 36C of the elevator system 30 in the planned physical environment.

[0050] With respect to the data processing system 22, this system 22 may be the local processing system 22A of the elevator system 30, or it may be a cloud-based processing system 22B or other remote server system (related to the elevator system 30).

[0051] System 100 may be configured to recognize elevator objects 36A to 36C, for example, components or devices of the elevator system 30, in the physical environment portion 37. This recognition may be performed using pattern and / or shape recognition algorithms. Alternatively, objects 36A to 36C may be recognized using identification elements or devices, such as barcodes, QR codes or radio frequency identification (RFID) tags, or similar proximity communication-based devices. Recognition may be performed substantially automatically by optical sensors 28, or a user may input recognition information to System 100, for example, through a user interface of a display device 26 using a touch display or eye-tracking technology.

[0052] Recognition of objects 36A to 36C preferably includes identifying corresponding parts from the digital representation, for example, parts containing corresponding objects, where the corresponding objects are, for example, devices or components of the elevator system 30.

[0053] In various embodiments, the system 100 may be configured to compare the recognized objects 36A to 36C with their corresponding objects in a digital representation. Furthermore, the system 100 may be configured to track the recognized objects 36A to 36C. This allows the user to easily observe the moving objects 36A to 36C even when they are moving.

[0054] In various embodiments, the system 100 may be configured to utilize one or preferably more anchor points. Alternatively, anchor points may be used to compare a digital representation of the elevator system and its physical environment at the anchor points.

[0055] In this way, anchor points may be used to synchronize or adjust the digital representation with respect to the current location of the physical environment.

[0056] The anchor point may be represented, for example, by a two-dimensional marker, which is essentially any visible symbol detectable by the optical sensor 28. Alternatively, the anchor point may be detected, for example, by a short-range wireless communication device. This device may be, for example, an RFID tag or similar, which can be read by an RFID reader.

[0057] Therefore, depending on the embodiment, the two-dimensional marker is detected by the optical sensor 28 of the display device 26. Based on the detection of the anchor point, the display device 26 can also receive relevant information about the corresponding portion of the digital representation.

[0058] In a non-limiting example, the anchor point may be located at the bottom or in a pit of the elevator shaft. When the anchor point is detected or read by the optical sensor 28, it may be linked to a corresponding portion in the digital representation by providing information about its position.

[0059] Furthermore, if discrepancies are detected between the digital representation and the physical environment, anchor points may optionally be used to update or synchronize the digital representation to match the physical environment.

[0060] In various embodiments, the system 100 may be configured to operate in an operating mode such as a first operating mode, in which, for example, the display device 26 displays only relevant information on its display based on the current position and / or word flow stage.

[0061] In the first operating mode, the user may manually select the relevant information, or it may be automatically selected by the display device 26 based on location information and / or information about the next step in the user's workflow. For example, when a user is installing a device or component related to a given subsystem or substructure, only information related to that subsystem or substructure may be displayed.

[0062] Depending on the embodiment, the relevant information is determined based on past or present anchor points. Therefore, the relevant information may relate to components or devices related to the next future anchor point. This prevents the display device from displaying excessive and / or redundant or unnecessary information that is not related to the next future anchor point.

[0063] In an unrestrictive example, past or present anchor points may relate to a first guide rail component. The next anchor point may be a second guide rail component installed to contact the first guide rail component after the first guide rail component. As a result, in the first operating mode, the display device 26 displays only the relevant information relating to the second guide rail component.

[0064] In various embodiments, the first operating mode differs from the general operating mode of the system 100. In the general operating mode, the display device 26 displays all or most of the information obtained from the digital representation relating to the corresponding portion of the digital representation to the physical environment. Thus, the information provided to the display device 26 and displayed on its screen in the general operating mode is determined primarily by the current portion of the environment to which the optical sensor 28 is directed.

[0065] Figure 1 further shows an elevator shaft 31 along which the elevator car 32 is movable. The elevator car 32 may be moved using, for example, an elevator motor connected to a hoisting rope 39. The hoisting rope 39 may be made of, for example, steel or carbon fiber. The term hoisting rope does not impose any restrictions on the shape of the element. For example, the hoisting rope 39 may be implemented as a rope, a belt, or a track in elevators with few ropes or no ropes. Conversely, the elevator car 32 may be moved by hydraulic means or a linear motor.

[0066] The elevator objects 36A to 36C are not limited to a single elevator component or device. The elevator objects, for example, objects 36A and 36B, may be located within the elevator shaft 31. Alternatively, the elevator object, for example, 36C, may be located in the machine room 38 of the elevator system 30, if any.

[0067] Therefore, the elevator objects 36A to 36C may be, for example, simple support elements. On the other hand, the elevator objects 36A to 36C may be electromechanical devices. For example, the elevator objects 36A to 36C may be safety switches or other safety devices, electric actuators, electric motors, batteries, etc. As is well known to those skilled in the art, a standard elevator system 100 consists of hundreds, even thousands, of components, devices, and subsystems, all of which must be precisely installed and formed. According to various embodiments of the present invention, the digital representation, or digital twin, includes at least one, some, the majority, or even all of these components, devices, and subsystems. Thus, while dealing with various elevator objects 36A to 36C, the user can appropriately obtain information and / or instructions related to the elevator objects 36A to 36C directly to the display device 26.

[0068] Figures 2A and 2B schematically illustrate the display device 26 according to several embodiments of the present invention. Figure 2A shows an example in which the display device 26 is augmented reality glasses. Figure 2B shows an example in which the display device 26 is a portable computer.

[0069] In a preferred embodiment, the system 100 may be configured to provide instructions and / or information regarding the recognized objects 36A to 36C to the user via the display device 26.

[0070] Augmented reality glasses provide the user with an exceptionally easy way to direct their gaze at part 37 while giving instructions to objects 36A-36C. This allows the user to instantly and appropriately view instructions and / or information related to the recognized objects 36A-36C. Alternatively, the user may point the optical sensor 28 of a portable computer, such as a tablet computer or smartphone, at part 37, but then observe and work on objects 36A-36C without viewing part 37 through the display device 26. The user then occasionally glances at the display device 26 to check if any instructions and / or information related to the recognized objects 36A-36C are displayed.

[0071] Alternatively, the display device 26 may have only a built-in display, but may also be connected to an optical sensor 28, such as a separate digital camera. A combination of these two devices may be used to perform various functions of the system 100.

[0072] Figure 3 schematically shows examples of a display device 26 according to several embodiments of the present invention. For example, the device 26 in Figure 3 may be augmented reality glasses.

[0073] Therefore, the provision of the instructions and / or information described above preferably includes superimposing the instructions and / or information 29A onto the portion 37 displayed on the display device 26, i.e., the portion related to the recognized object 36A.

[0074] In various embodiments, the system 100 may be configured to detect, as a comparison result, the difference between the portion 37 or the recognized objects 36A to 36C and the corresponding portion or object if the portion 37 is different from the corresponding portion. The provision of the above instructions and / or information may also include giving the display device 26 a notification or instruction for corrective action based on the detection of the difference.

[0075] The instructions and / or information may include, for example, tolerances for the elevator objects 36A to 36C described above. This allows the user to immediately receive feedback on whether the objects 36A to 36C have been installed correctly, taking tolerances into account.

[0076] On the other hand, the instructions and / or information may include one or more operating parameter values ​​for the elevator objects 36A to 36C described above. Therefore, the instructions and / or information are not necessarily closely related to physical parameters, but are related, for example, to control or adjustment parameters of electrical equipment. In this way, since the control parameters are displayed on the display device 26 while the user is processing the objects 36A to 36C, the user can set the control parameters accurately as appropriate.

[0077] Figure 4 shows a flowchart of a method according to an embodiment of the present invention.

[0078] Item 400 of the method relates to the initial stage of this method: procure appropriate equipment, components, devices, and subsystems, assemble the system, and configure its operation.

[0079] Step 410 of the item, namely the method, relates to creating a digital representation, or digital twin, of an elevator system and its physical environment, such as the current or future physical environment. This creation includes obtaining or generating a first digital model of the physical environment, obtaining or generating several reference digital models of the elevator objects of the elevator system, and integrating the first digital model with the several reference digital models to create the digital representation.

[0080] Step 420 of the item, namely the method, relates to forming a display device 26, which has or is connected to an optical sensor 28 such as a digital camera and performs digital representation.

[0081] Step 430 of the item, namely the method, relates to detecting a portion 37 of the physical environment using an optical sensor 28.

[0082] Step 440 of the item, or method, relates to comparing the aforementioned portion 37 with a corresponding portion in a digital representation, which portion 37 is visibly arranged on the display device 26.

[0083] The execution of the method may end at item 499, i.e., step 499 of the method.

[0084] The method may further include recognizing elevator objects 36A to 36C, such as components or devices, in a portion 37 of the physical environment.

[0085] Depending on the embodiment, the method includes detecting one or more anchor points by the display device 26 after or during the execution of an item, i.e., step 430 of the method. Furthermore, the information obtained from the digital representation and displayed on the display device 26 using the anchor points may be limited to relevant information relating to the current anchor point or future anchor points.

[0086] In various embodiments, the method may include comparing the recognized objects 36A to 36C with corresponding objects in a digital representation.

[0087] Furthermore, this method may include tracking the recognized objects 36A to 36C.

[0088] This method may also include providing instructions and / or information 29A related to the recognized objects 36A to 36C to the user via the display device 26. Furthermore, this provision may include superimposing the instructions and / or information 29A onto a portion 37 visible on the display device 26, for example, by utilizing extended representation techniques.

[0089] In various embodiments, the method may include detecting differences between the portion 37 and the corresponding portion as a comparison result if the portion 37 differs from the corresponding portion in terms of its structure, position, operating parameters, etc. In addition, the provision of instructions and / or information 29A may include notifying or giving instructions for corrective action to the display device 26 based on the detection of differences.

[0090] As previously discussed, the instructions and / or information 29A may include the tolerances for the elevator objects described above. Alternatively or additionally, the instructions and / or information 29A may include one or more operating parameter values ​​for the elevator objects 36A to 36C described above.

[0091] The scope of the present invention is defined by the appended claims and their equivalents. The disclosed embodiments are for illustrative purposes only, and it will be apparent to those skilled in the art that other devices applying many of the principles described above can be readily configured to best suit a possible use case.

Claims

1. A method for assisting a user during the installation, maintenance, and / or commissioning of an elevator system (30), wherein the method is: The elevator system (30) and its physical environment, for example, a digital representation, for example, a digital twin, of the current or future physical environment is created (410), and in the creation (410), - Obtain or generate a first digital model of the aforementioned physical environment, - Obtain or generate several reference digital models for the elevator objects (36A to 36C) of the elevator system (30), and, - The first digital model and several reference digital models are integrated to create the digital representation, The method involves forming (420) a display device (26) that has an optical sensor (28) such as a digital camera or is connected to the optical sensor and performs the digital representation, The optical sensor (28) detects (430) the portion (37) of the physical environment, and A method of comparing (440) the portion (37) with the corresponding portion in the digital representation, wherein the portion (37) in the comparison is visibly arranged on the display device (26).

2. A method according to claim 1, wherein a method for recognizing elevator objects (36A to 36C), such as components or devices, within the portion (37) of the physical environment.

3. The method according to claim 1 or 2, wherein the method involves comparing the recognized object (36A to 36C) with the corresponding object in the digital representation.

4. The method according to claim 2 or 3, wherein the method is a method for tracking the recognized object (36A to 36C).

5. The method according to any one of claims 1 to 4, wherein the method provides the user with instructions and / or information (29A) related to the recognized object (36A to 36C) via the display device (26).

6. The method according to claim 5, wherein the provision includes, for example, using augmented reality technology to superimpose the instruction and / or information (29A) onto the portion (37) visible on the display device (26).

7. A method according to any one of claims 1 to 6, wherein, if the portion (37) is different from the corresponding portion, the difference between the portion (37) and the corresponding portion is detected as a result of the comparison.

8. The method according to claim 7, wherein the provision of the instruction and / or information (29A) is a method of notifying or instructing the display device (26) to take corrective action based on the detection of the difference.

9. A method according to any one of claims 2 to 8, wherein the instruction and / or information (29A) includes a tolerance for the elevator object (36A to 36C).

10. The method according to any one of claims 2 to 9, wherein the instruction and / or information (29A) includes one or more operating parameter values ​​of the elevator object (36A to 36C).

11. A system (100) that assists users during the installation, maintenance and / or commissioning of an elevator system (36), wherein the system (100) A display device (26) having or connected to an optical sensor (28), It is equipped with a data processing system (22, 22A, 22B), The display device (26) is arranged to communicate with the data processing system (22, 22A, 22B), and the data processing system (22, 22A, 22B) is configured to store a digital representation, e.g., a digital twin, of the elevator system (30) and its physical environment, e.g., a current or future physical environment, wherein the physical environment includes, at least, preferably in an integrated state, a first digital model of the physical environment and several reference digital models of the elevator objects (36A to 36C) of the elevator system (30). The display device (26) is - Perform the aforementioned digital representation, - The optical sensor (28) detects (430) the portion (37) of the physical environment, - A system configured to compare (440) the portion (37) with a corresponding portion in the digital representation, wherein the portion (37) in the comparison is visibly arranged on the display device (26).

12. A system (100) according to claim 11, wherein the display device (26) is augmented reality glasses.

13. A system (100) according to claim 11, wherein the display device (26) is a portable computer.

14. A system (100) according to any one of claims 11 to 13, wherein the data processing system (22, 22A, 22B) is a local processing system of the elevator system (30).

15. A system (100) according to any one of claims 11 to 13, wherein the data processing system (22, 22A, 22B) is a cloud-based processing system.

16. A system (100) according to any one of claims 11 to 15, wherein the system is configured to recognize elevator objects (36A to 36C), such as components or devices, within the portion (37) of the physical environment.

17. A system (100) according to any one of claims 11 to 16, wherein the system is configured to compare the recognized objects (36A to 36C) with the corresponding objects in the digital representation.

18. The system (100) according to claim 17, wherein the system is configured to track the recognized objects (36A to 36C).

19. A system (100) according to claim 17 or 18, wherein the system is configured to provide the user with instructions and / or information (29A) relating to the recognized objects (36A to 36C) via the display device (26).

20. A system (100) according to claim 19, wherein the provision of the instructions and / or information (29A) is performed by, for example, using augmented reality technology to superimpose the instructions and / or information (29A) onto the portion (37) displayed on the display device (26).

21. A system (100) according to any one of claims 11 to 20, wherein the system is configured to detect, as a result of the comparison, the difference between the part (37) and the corresponding part when the part (37) is different from the corresponding part.

22. The system (100) according to claim 21, wherein the provision of the instructions and / or information (29A) provides a system that notifies or instructs the display device (26) to take corrective action based on the detection of the difference.

23. A system (100) according to any one of claims 19 to 22, wherein the instruction and / or information (29A) includes a tolerance for the elevator object (36A to 36C).

24. A system (100) according to any one of claims 19 to 22, wherein the instruction and / or information (29A) includes one or more operating parameter values ​​of the elevator object (36A to 36C).

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