Construction reference information generation device, construction reference information generation method, and construction reference information generation program

Abstract

To provide a construction reference information generation device capable of efficiently creating data as construction reference information used in a display device that overlays and displays virtual objects in an arrangement according to positions in real space.SOLUTION: A construction reference information generation device comprises a data acquisition unit (1122) that acquires building design data indicating design of at least a part of a building and object design data indicating design of a construction object constructed on the building, and a construction reference information generation unit (1121) that generates construction reference information on the basis of the building design data and the object design data.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a construction reference information generation device that is used in a display device that overlays virtual objects in an arrangement corresponding to the position in the real space onto the field of view of a worker viewing the real space where a building is to be constructed, or onto an image representing the real space, and that generates construction reference information related to the virtual objects. [Background technology]

[0002] Conventionally, in construction work and the like, a method has been proposed in which information necessary for the work is displayed superimposed on real space on a display device such as smart glasses worn by a worker while the work is being carried out. For example, Patent Document 1 discloses a projection device that scans real space to recognize the spatial shape, scales drawing data to fit the real space, and maps and displays it on the real space. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-163466 Summary of the Invention [Problem to be solved by the invention]

[0004] Using the above technology, it is conceivable to overlay an image showing the installation position of a construction target onto the real space where the work is being carried out. For example, this overlay display technology could be used when constructing elevator shafts and landings in the construction of a building. The shaft is located between the lowest and highest floors of the building, and is a long structure running vertically. Landings are also located on each floor. Because many different components are installed in such shafts and landings, the amount of data used as construction reference information for overlay display becomes enormous. Creating such a huge amount of data from scratch poses the problem of the enormous amount of work required.

[0005] One aspect of the present invention aims to provide a construction reference information generation device that can efficiently create data as construction reference information to be used in a display device that overlays and displays virtual objects in an arrangement that corresponds to the position in real space. [Means for solving the problem]

[0006] In order to solve the above problems, the construction reference information generating device of the present invention is used in a display device that overlays virtual objects in an arrangement according to the position of the real space on the field of view of a worker viewing the real space where a building is to be constructed, or on an image representing the real space, and generates construction reference information related to the virtual objects.The construction reference information generating device is configured to include a data acquisition unit that acquires building design data that indicates the design of at least a part of the building, and object design data that indicates the design of a construction object to be constructed on the building, and a construction reference information generating unit that generates the construction reference information based on the building design data and the object design data.

[0007] In order to solve the above problems, the construction reference information generation method of the present invention is used in a display device that overlays virtual objects in an arrangement corresponding to the position of the real space on the field of view of a worker viewing the real space where a building is to be constructed, or on an image representing the real space, and generates construction reference information related to the virtual objects.The method includes a data acquisition step of acquiring building design data that shows the design of at least a part of the building, and object design data that shows the design of a construction object to be constructed on the building, and a construction reference information generation step of generating the construction reference information based on the building design data and the object design data.

[0008] The construction reference information generating device according to each aspect of the present invention may be realized by a computer. In this case, the construction reference information generating program of the construction reference information generating device, which realizes the construction reference information generating device on a computer by causing the computer to operate as each part (software element) of the construction reference information generating device, and the computer-readable recording medium on which it is recorded, also fall within the scope of the present invention. [Effects of the Invention]

[0009] According to the present invention, construction reference information is generated based on, for example, existing building design data and object design data, and therefore, it is possible to efficiently create data as construction reference information. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a block diagram showing a schematic configuration of a construction reference information generating device 11 according to an embodiment of the present invention. [Figure 2] 1 is a block diagram showing an outline of the configuration of smart glasses 1 according to an embodiment of the present invention; [Figure 3] 1 is a diagram showing a state in which smart glasses (display device) 1 according to the present embodiment are attached to a safety helmet 111. FIG. [Figure 4] FIG. 2 is a perspective view showing an outline of an elevator hall 200 and a hoistway 102 to which the elevator is to be constructed. [Figure 5] 1 is a perspective view showing an outline of an opening 101 as viewed from inside a hoistway 102. FIG. [Figure 6] FIG. 10 is a diagram showing an example of a state in which an IRP bracket IRPB and an IR plate IRP are overlaid and displayed as virtual objects. [Figure 7] 1 shows an example of building design data D1, and is a horizontal cross-sectional view of an elevator shaft 102 at a predetermined height. [Figure 8] 1 shows an example of building design data D1, and is a vertical cross-sectional view at a predetermined position in an elevator shaft 102. FIG. [Figure 9] 9 shows object design data D2 relating to the IRP bracket IRPB, where 901 is a plan view of the IRP bracket IRPB and 902 is a front view of the IRP bracket IRPB. [Figure 10] 10 is a flowchart showing a flow of a construction reference information generation process according to the embodiment of the present invention. [Figure 11] 3 is a flowchart showing a processing flow of an elevator installation method according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, one embodiment of the present invention will be described in detail.

[0012] (Outline of smart glass application examples) 3 is a diagram showing a state in which smart glasses (display device) 1 according to this embodiment are attached to a safety helmet 111. In this embodiment, a situation is assumed in which a worker who is installing an elevator during the construction of a building wears the smart glasses 1 together with the safety helmet 111.

[0013] The smart glasses 1 are optically transparent head-mounted displays. A wearer of the smart glasses 1 can view the external real space and can also view the projected image within the real space. That is, the smart glasses 1 overlay a virtual object as construction reference information related to elevator construction in a position corresponding to the position in the real space in the field of view of a worker viewing the real space including the elevator landing and hoistway. Note that in this embodiment, the construction reference information is described as information related to elevator construction, but is not limited thereto, and the present invention can be applied to various construction work carried out in the construction of a building.

[0014] FIG. 6 shows an example of a virtual object, an IRP bracket IRPB to which an IR plate (inductor plate) IRP is attached, overlaid on real space. The IR plate IRP indicates the elevator car's stopping position. The IR plate IRP detects a sensor attached to the car, determining whether the car has landed at a predetermined position on each floor. The IR plate IRP is attached to a rail RL in the elevator shaft via the IRP bracket IRP. As shown in FIG. 6, the IR plate IRP and the IRP bracket IRPB are displayed as virtual objects attached to a wall 300 and a rail RL located a predetermined distance away from the wall 300 in real space. This allows the worker to confirm the location in three-dimensional space where the construction work should be performed in real space. This eliminates the need to measure and confirm the location in real space where the construction work should be performed, improving workability.

[0015] In this embodiment, smart glasses 1, which are optically transparent head-mounted displays, are used as the display device, but the present invention is not limited to this. For example, a video-transparent head-mounted display that displays both an image of the external real space captured by a camera and an image of a virtual object may be used. Furthermore, instead of a head-mounted display, the display device according to the present invention may be a portable information display terminal such as a tablet PC or a notebook PC, or a portable display and camera connected to an information processing device wirelessly or via a cable.

[0016] The virtual object as construction reference information is displayed based on 3D CAD data or 2D CAD data generated based on the design specifications of the construction target. This CAD data may be generated based on information of a 3D model generated as BIM (Building Information Modeling), for example. In BIM, various information such as the quantity, product number, dimensions, material, performance, and price of each part is included in the 3D model as object information, so at least one of this information may be displayed as construction reference information. Details of the method for generating construction reference information will be described later.

[0017] (Details of smart glasses configuration) 2 is a block diagram showing an outline of the configuration of the smart glasses 1. As shown in the figure, the smart glasses 1 include a control unit 2, a projection unit 3, an imaging unit 4, a storage unit 5, a communication unit 6, and an audio input / output unit 7. The control unit 2 is a block that performs various information processing in the smart glasses 1, and includes a display control unit 21, a position recognition unit 22, an input control unit 23, and a warning control unit 24.

[0018] The display control unit 21 controls the projection unit 3 to overlay and display a virtual object as construction reference information related to elevator construction. The projection unit 3 projects an image onto the half mirror, allowing the worker wearing the smart glasses 1 to view the projected image while viewing the external real space. The display control unit 21 makes the projected image for the right eye and the projected image for the left eye different, thereby displaying the virtual object as if it were three-dimensionally positioned at a predetermined position in real space. This allows the worker to recognize the construction position as a three-dimensional position in real space.

[0019] The display control unit 21 reads out construction reference information including three-dimensional CAD data or two-dimensional CAD data stored in the storage unit 5 and controls the display of the virtual object. Here, the three-dimensional CAD data or two-dimensional CAD data also includes information indicating a positional relationship with an object existing in real space. In addition, the display control unit 21 controls the display position of the virtual object based on the position in real space recognized by the position recognition unit 22.

[0020] The display control unit 21 may acquire construction reference information from outside via the communication unit 6. The communication unit 6 may communicate with a PC or server on a local network via a wireless LAN, or with an external server via the Internet, for example. This makes it possible to update the data stored in the storage unit 5 and acquire new data.

[0021] The position recognition unit 22 recognizes the three-dimensional position of the smart glasses 1 in real space and the three-dimensional direction in which the smart glasses 1 are facing by recognizing the captured images of markers M1 and M2 (details will be described later) placed at predetermined positions in real space captured by the imaging unit 4. The position recognition unit 22 is also capable of position recognition with 6DoF (Degree of Freedom). This allows the worker to once have their position recognized by the position recognition unit 22 using the markers M1 and M2, and then view the virtual object while maintaining its relative positional relationship with real space even if they subsequently change their viewing direction or move.

[0022] The input control unit 23 is a block that receives and processes various instruction inputs from the worker. For example, an instruction input is an input to an input interface as a virtual object. That is, the display control unit 21 displays an image as the input interface as a virtual object in real space, and the instruction input from the worker is received by image recognition of the worker's virtual touch with a finger or the like.

[0023] Furthermore, for example, an instruction input from a worker may be accepted by voice input from the voice input / output unit 7. That is, the input control unit 23 recognizes the voice received by the voice input / output unit 7 and recognizes the content of the instruction from the worker, thereby accepting the instruction input from the worker.

[0024] Furthermore, an instruction input from a worker may be accepted by an external input device via the communication unit 6. For example, the communication unit 6 communicates with various input devices such as a Bluetooth (registered trademark) compatible input controller or a wireless keyboard, and an instruction input is accepted as an input by a worker to the input device.

[0025] The warning control unit 24 controls some kind of warning to be issued to the worker wearing the smart glasses 1. Examples of warning methods include projecting and displaying the warning content using an overlay display by the display control unit 21, outputting a warning sound or a voice indicating the warning content from the audio input / output unit 7, and so on.

[0026] The warning condition is that the position recognition unit 22 recognizes that the worker is located within a predetermined area near the elevator shaft. This allows a warning to be issued when there is an increased risk of the worker falling into the elevator shaft, thereby further improving the safety of the worker.

[0027] At least one function of the display control unit 21, the position recognition unit 22, the input control unit 23, and the warning control unit 24 included in the control unit 2 may be realized in an external computer via communication.

[0028] (Example of a real space where an elevator is installed) Fig. 4 is a perspective view showing an outline of an elevator hall 200 and a hoistway 102, which are the targets of elevator construction. The figure shows a state in which the elevator doors have not yet been installed, during the construction stage of a building. In this state, an opening 101 serving as an elevator entrance exists between the hall 200 and the hoistway 102. The hall 200 has a floor surface 201 and a wall surface 202.

[0029] Two markers M1 and M2 are provided on the floor surface 201. As described above, the markers M1 and M2 are used by the position recognition unit 22 to recognize the positions in real space by performing image recognition of the markers M1 and M2 in the captured image. Each of the markers M1 and M2 is made up of a rectangular planar member, and a predetermined pattern is formed on its surface. By arranging such markers M1 and M2 at predetermined positions near the opening 101 on the floor surface 201 of the hall 200, the position recognition unit 22 can accurately recognize the positions of the hall 200 and the elevator shaft 102 in three-dimensional space.

[0030] In this embodiment, two markers are provided for each landing, but this is not limited to this, and one marker, or three or more markers may be provided. The more markers provided, the higher the accuracy of position recognition, but if two markers are provided, position recognition can be performed with sufficient accuracy.

[0031] Furthermore, in this embodiment, the markers M1 and M2 are provided at the hall 200, but the markers may also be provided within the hoistway 102.

[0032] Markers M1 and M2 are placed at predetermined positions on floor surface 201 that are specified as marker installation positions in construction reference information including 3D CAD data or 2D CAD data. The installation positions of these markers M1 and M2 require high precision in order to accurately match the positions in real space with the displayed positions of the virtual objects. Therefore, it is preferable that the markers be placed based on a predetermined position reference object with high placement position accuracy in real space. An example of the position reference object is piano wire 103 placed in elevator shaft 102.

[0033] FIG. 5 is a perspective view showing the opening 101 as seen from inside the elevator shaft 102. As shown in the figure, two piano wires 103, 103 are suspended from predetermined positions at the top of the elevator shaft 102 during the construction stage of a building. In other words, the piano wires 103, 103 are placed in fixed positions without being affected by the construction status of each floor. Therefore, by using this piano wire as a position reference (reference line), it is possible to maintain a high level of accuracy in the installation positions of the markers M1, M2. Note that this is not limited to piano wire, and any strong wire member with a sufficiently thin diameter may be used.

[0034] Alternatively, a laser beam may be used as a position reference, for example. That is, by irradiating a laser beam vertically downward from a predetermined position in the upper part of the elevator shaft 102, or by irradiating a laser beam vertically upward from a predetermined position in the lower part of the elevator shaft 102, the laser beam can be positioned at a fixed position, similar to piano wire. However, with laser beams, the thickness of the beam tends to increase as the distance from the light source increases, so there is a possibility that errors due to the thickness of the beam may be affected depending on the height of the building. Alternatively, a reference point (architectural markings) marked on the landing of each floor may be used as a position reference.

[0035] Furthermore, multiple landings 200 will be provided for each floor for one elevator, and it is preferable to install the markers at the same location in relation to the elevator entrance / exit, i.e., at the same relative position in relation to the entrance, at each landing 200.

[0036] In many cases, all halls 200 for the same elevator have the same structural arrangement. In this case, since markers M1 and M2 can be installed in the same locations relative to the elevator entrances at each hall 200, the marker installation work can be performed using the same standards and work. This allows the marker installation work to be performed efficiently. In addition, the data for overlay display can also have a common data structure among multiple halls 200.

[0037] (Configuration of construction reference information generation device) Next, a description will be given of the construction reference information generating device 11 that generates construction reference information. FIG. 1 is a block diagram showing a schematic configuration of the construction reference information generating device 11. As shown in the figure, the construction reference information generating device 11 includes a control unit 112, a display unit 113, an input unit 114, a communication unit 115, and a storage unit 116. The construction reference information generating device 11 is assumed to be configured, for example, by a normal general-purpose PC (Personal Computer), but is not limited to this, and at least a part of the processing may be performed by a cloud service.

[0038] The control unit 112 is a block that performs various information processing in the construction reference information generating device 11, and includes a construction reference information generating unit 1121 and a data acquiring unit 1122. The data acquiring unit 1122 acquires the building design data D1 and the object design data D2 stored in the memory unit 116.

[0039] The building design data D1 is data that indicates the design of at least a part of the building, and more specifically, includes design data that indicates the design of at least one of the elevator shaft 102 and the floor surface 201 of the landing 200 that are provided in the building. In other words, the building design data D1 corresponds to the design data used when constructing the building.

[0040] For example, the data acquisition unit 1122 may display a dialog for the user to select a file of the building design data D1 on the display unit 113, and acquire the file selected by the user's instruction input via the input unit 114. The data acquisition unit 1122 may also display a user interface on the display unit 113 that allows the user to specify a specific part of the building (for example, an elevator shaft or landing), and acquire the design data of the part specified by the user as the building design data D1.

[0041] The object design data D2 is data indicating the design of a construction object to be constructed on a building, and more specifically, includes design data indicating the design of elevator-related components as construction objects to be provided in at least one of the elevator hoistway 102 and the landing 200. In other words, the object design data D2 corresponds to design data used when creating the construction object.

[0042] In this embodiment, an example will be described in which an object to be constructed is constructed in at least one of the elevator shaft 102 and the hall 200, but the present invention is not limited to this. For example, the present invention can also be applied to cases in which an object to be constructed is constructed in shared spaces such as escalators, stairs, corridors, and entrances and exits of a building, as well as individual spaces such as inside a room.

[0043] For example, the data acquisition unit 1122 may display a dialog for the user to select a file of the object design data D2 on the display unit 113, and acquire the file selected by the user's instruction input via the input unit 114. Furthermore, the data acquisition unit 1122 may present the user with a list indicating the types of construction objects, and acquire the design data of the construction object specified by the user as the object design data D2.

[0044] The data acquisition unit 1122 acquires the building design data D1 and the object design data D2 from the storage unit 116, but is not limited to this. For example, at least one of the building design data D1 and the object design data D2 may be acquired from an external server via the communication unit 115.

[0045] The construction reference information generation unit 1121 generates construction reference information D3 based on the building design data D1 and the object design data D2 acquired by the data acquisition unit 1122. Here, the building design data D1 includes data indicating the installation position of the construction object in the building, and the object design data D2 includes data indicating the size of the construction object.

[0046] More specifically, the building design data D1 includes at least one of the floor level positions of each floor in the building and the positions of position reference objects that serve as references for installing elevator-related components, while the object design data D2 includes at least one of the positional relationship between the elevator-related components and the floor level and the positional relationship between the elevator-related components and the position reference objects.

[0047] FIG. 7 shows an example of building design data D1, illustrating a horizontal cross section of the elevator shaft 102 at a predetermined height. As shown in the figure, the positions of the car 301, counterweight 302, rail RL, and the like within the elevator shaft 102 are shown, and the positions of the wall surface 202, opening 101, and the like within the landing 200 are shown. Here, the IRP bracket IRPB is installed on the rail RL, so the rail RL serves as the position reference object. In other words, the data shown in FIG. 7 clarifies the position of the rail RL as the position reference object in the horizontal plane. Note that the rail RL is arranged extending in the vertical direction, so its position in the horizontal plane is constant regardless of height.

[0048] Fig. 8 shows an example of building design data D1, illustrating a vertical cross-section at a predetermined position in the hoistway 102. As shown in the figure, the position of the floor level FL of each floor in the hoistway 102 is shown, as well as the position of the rail RL and the vertical attachment position of the IRP bracket IRPB. In other words, the data shown in Fig. 8 clarifies the positional relationship between the floor level FL and the IRP bracket IRPB.

[0049] 9 shows object design data D2 related to the IRP bracket IRPB, with 901 showing a plan view of the IRP bracket IRPB and 902 showing a front view of the IRP bracket IRPB. As shown in the figure, the state in which the IRP bracket IRPB is attached to the rail RL with bolts and nuts, and the state in which the IR plate IRP is attached to the IRP bracket IRPB with bolts and nuts are shown together with the dimensions.

[0050] Based on the building design data D1 shown in Figures 7 and 8 and the object design data D2 shown in Figure 9, the positional relationship between the elevator shaft 102 and each IRP bracket IRPB becomes clear, and by combining these two to generate construction reference information, it is possible to display a virtual object such as that shown in Figure 6.

[0051] As described above, by using the building design data D1 and the object design data D2, the construction reference information generation unit 1121 generates construction reference information in which the display position of a virtual object corresponding to each construction object within the building is set. This makes it possible to efficiently create data as construction reference information even when a large number of construction objects need to be constructed within a building. Furthermore, based on the building design data D1 and the object design data D2, it is possible to generate display data for a virtual object in which the construction object is provided at an accurate position and with an accurate size relative to the structure of the building.

[0052] (Examples of construction objects) In the above, an IRP bracket IRPB and an IR plate IRP have been described as examples of the construction object, but the construction object is not limited to these and may be, for example, the construction object shown below.

[0053] The construction object may be a rail bracket. The rail bracket is a bracket for fixing the rail RL to a wall surface inside the elevator shaft 102. The building design data D1 indicates the height position of the rail bracket and the center position of the rail RL. Furthermore, the object design data D2 indicates the state in which the rail bracket is attached to the rail RL, along with its dimensions.

[0054] The construction object may be a sill bracket. The sill bracket is a bracket for fixing a sill (threshold) that guides a landing door to a wall surface inside the elevator shaft 102. The building design data D1 indicates the floor level position of each floor, the center position of the doorway where the landing door is to be installed, or the doorstop position of the landing door. The object design data D2 also indicates the positional relationship between the sill bracket and the center position of the doorway or the doorstop position of the landing door, along with dimensions.

[0055] The construction object may be a buffer base. The buffer base is a base member for fixing a buffer (shock absorber) that absorbs the impact in the event that the car or counterweight falls to the lowest pit in the elevator shaft 102, and also serves to fix the rail RL to the bottom of the pit. The building design data D1 indicates the position of the pit and the center position of the rail RL. In addition, the object design data D2 indicates the positional relationship between various components on the bottom of the pit and the rail RL, along with their dimensions.

[0056] The construction object may be a cable hanger. The cable hanger is a component for fixing the intermediate position of a traveling cable (tail cord) connecting a car and a control panel. The building design data D1 indicates the height position of the cable hanger and the center position of the rail RL. The object design data D2 also indicates the state of the cable hanger attached to the rail RL together with its dimensions.

[0057] The construction object may be a machine and a machine beam. The machine is a motor that raises and lowers an elevator by winding up a rope, and the machine beam is a member that secures the machine to a rail or a pit. The building design data D1 indicates the position of the floor level of the lowest floor and the center position of the rail RL. The object design data D2 indicates the positional relationship between the machine and machine beam and the floor level of the lowest floor and the rail RL, along with their dimensions.

[0058] The construction object may be a limit switch trough. The limit switch trough is a component for attaching a limit switch that detects the position of a car near the top or bottom floor. The building design data D1 indicates the floor level position of the top or bottom floor and the center position of the rail RL. The object design data D2 indicates the positional relationship between the limit switch trough, the floor level of the top or bottom floor, and the rail RL, along with their dimensions.

[0059] The construction object may be a box equipped with electrical equipment for controlling an elevator. The building design data D1 indicates the floor level positions of the top or bottom floor and the center position of the rail RL. The object design data D2 indicates the positional relationship between the box, the bottom floor level, and the rail RL, along with their dimensions. This box may be, for example, a breaker box and a control panel. A breaker box is a box that houses a breaker, and a control panel is a device that controls the operation of the elevator. Other examples of boxes include inverter panels, isolation transformer panels, and AC reactor panels.

[0060] The construction object may be a governor rope guide. The governor rope guide is a component that guides the side of the governor rope that is not fastened to the car, preventing the rope from swaying. The building design data D1 indicates the floor level position of the top floor or the bottom floor, and the center position of the rail RL. The object design data D2 indicates the positional relationship between the governor rope guide, the floor level of the top floor or the bottom floor, and the rail RL, along with their dimensions.

[0061] The construction object may be a hall button box. The hall button box is a box that is installed on the wall of a hall and stores hall call buttons and a display unit that displays the current position and direction of movement of the elevator car. The building design data D1 indicates the floor level position of each floor and the center position of the hall call buttons. The object design data D2 indicates the positional relationship between the hall button box, the floor level of each floor, and the hall wall, along with dimensions.

[0062] The construction object may be a panel base and a floor duct. In an elevator with a machine room on the roof of a building, an electrical panel and machines must be installed in the machine room and wired together. The base for fixing this electrical panel to the building is the panel base, and the ducts that form the wiring paths from each electrical panel to each machine are the floor ducts. The building design data D1 indicates the position where the center line in the machine room will be formed. The object design data D2 indicates the positional relationship between the panel base and floor duct and the center line in the machine room, along with their dimensions.

[0063] (Flow of construction reference information generation process) Next, the flow of the construction reference information generation process according to this embodiment will be described with reference to Fig. 10. First, in step 11 (hereinafter referred to as S11), the data acquisition unit 1122 reads and acquires the building design data D1 from the storage unit 116 based on an instruction input from the user. Next, in S12, the construction reference information generation unit 1121 recognizes the floor level positions of each floor in the building and the positions of position reference objects that serve as references for installing elevator-related components, based on the building design data D1 acquired by the data acquisition unit 1122.

[0064] Next, in S13, the data acquisition unit 1122, based on an instruction input from the user, reads and acquires the object design data D2 from the storage unit 116. Next, in S14, the construction reference information generation unit 1121 recognizes the positional relationship between the elevator-related member and the floor level, and the positional relationship between the elevator-related member and the position reference object, based on the object design data D2 acquired by the data acquisition unit 1122.

[0065] Next, in S15, the construction reference information generation unit 1121 generates construction reference information based on the above recognition results regarding the building design data D1 and the object design data D2, and stores the generated construction reference information in the storage unit 116. Thereafter, in S16, the generated construction reference information data is transferred to the smart glasses 1 based on instructions from the user as necessary. The method of data transfer is not particularly limited. For example, the transfer may be performed by communication between the construction reference information generation device 11 and the smart glasses 1 via wireless LAN or a USB cable. Alternatively, the construction reference information may be temporarily uploaded from the construction reference information generation device 11 to a cloud server, and the smart glasses 1 may access the cloud server to acquire the data, thereby transferring the data. Alternatively, the transfer may be performed by a storage medium such as a USB memory.

[0066] (Elevator installation method processing flow) Next, the process flow of the elevator installation method according to this embodiment will be described with reference to Fig. 11. When elevator installation begins, first, in step 1 (hereinafter referred to as S1), a marker installation jig MJ having markers M1 and M2 attached thereto is installed at a predetermined position in the hall 200.

[0067] Next, in S2, the worker wears the smart glasses 1, captures images of the markers using the imaging unit 4, and causes the position recognition unit 22 to perform position recognition processing. Once position recognition is complete, in S3, the display control unit 21 overlays the virtual object. Once the worker has used the markers M1 and M2 to have the position recognition unit 22 recognize their position, the worker can view the virtual object while maintaining its relative positional relationship with the real space, even if they subsequently change their viewing direction or move. In this state, in S4, the worker performs construction work while checking the construction reference information overlaid by the display control unit 21. Note that construction work includes not only the actual construction work but also checks after the construction work has been completed. Then, in S5, the completion of the construction work is confirmed. If S5 returns No, meaning that the construction work is continuing, the processing from S3 is repeated. If S5 returns Yes, meaning that the construction work has been completed, the processing ends.

[0068] The above construction method and smart glasses 1 enable elevator construction to be carried out safely and efficiently. Such effects will also contribute to the achievement of Goal 11.c of the Sustainable Development Goals (SDGs) advocated by the United Nations, which states, "Support the development of sustainable and resilient buildings using local materials in least developed countries, including through financial and technical assistance."

[0069] [Software implementation example] The functions of the construction reference information generating device 11 (hereinafter referred to as the "device") are realized by a program for causing a computer to function as the device, and by a program for causing a computer to function as each control block of the device (particularly each part included in the control unit 112).

[0070] In this case, the device includes a computer having at least one control device (e.g., a processor) and at least one storage device (e.g., a memory) as hardware for executing the program. The control device and storage device execute the program, thereby realizing the functions described in each of the above embodiments.

[0071] The program may be non-transitory and may be recorded on one or more computer-readable recording media. The recording media may or may not be included in the device. In the latter case, the program may be supplied to the device via any wired or wireless transmission medium.

[0072] Furthermore, some or all of the functions of the control blocks can be realized by logic circuits. For example, an integrated circuit in which a logic circuit that functions as each of the control blocks is formed is also included in the scope of the present invention. In addition, the functions of the control blocks can also be realized by, for example, a quantum computer.

[0073] Furthermore, each process described in each of the above embodiments may be executed by AI (Artificial Intelligence). In this case, the AI ​​may run on the control device or on another device (for example, an edge computer or a cloud server).

[0074] (summary) The construction reference information generating device of aspect 1 of the present invention is used in a display device that overlays virtual objects in an arrangement corresponding to the position in the real space on the field of view of a worker viewing the real space where a building is to be constructed, or on an image representing the real space, and generates construction reference information related to the virtual objects.The construction reference information generating device is configured to include a data acquisition unit that acquires building design data that indicates the design of at least a part of the building, and object design data that indicates the design of a construction object to be constructed on the building, and a construction reference information generating unit that generates the construction reference information based on the building design data and the object design data.

[0075] According to the above configuration, the construction reference information is generated based on, for example, existing building design data and object design data, so that data as the construction reference information can be created efficiently.

[0076] A construction reference information generating device according to aspect 2 of the present invention may be configured such that, in aspect 1 above, the building design data includes design data indicating the design of at least one of an elevator hoistway and a landing to be provided in the building, and the object design data includes design data indicating the design of elevator-related components as the construction object to be provided in at least one of the elevator hoistway and a landing.

[0077] According to the above configuration, construction reference information for elevator construction can be efficiently generated using building design data that shows the overall structure of the building and object design data that includes individual design data for elevator-related components.

[0078] A construction reference information generating device according to aspect 3 of the present invention may be configured such that, in aspect 1 above, the building design data includes data indicating the installation position of the construction object in the building, the object design data includes data indicating the size of the construction object, and the construction reference information generating unit generates display data for the virtual object by inserting the object design data into the installation position of the construction object in the building design data based on the data indicating the size.

[0079] According to the above configuration, it is possible to generate display data for a virtual object in which a construction target is provided at an accurate position and with an accurate size relative to the structure of the building, based on the building design data and the target design data.

[0080] A construction reference information generating device according to aspect 4 of the present invention may be configured such that, in aspect 2 above, the building design data includes at least one of the floor level positions of each floor in the building and the position of a position reference object that serves as a reference for installing the elevator-related components, and the object design data includes at least one of the positional relationship between the elevator-related components and the floor level and the positional relationship between the elevator-related components and the position reference object.

[0081] According to the above configuration, data relating to the display of a virtual object of an elevator-related member can be generated based on the floor-level position of each floor and its positional relationship with the position reference object.

[0082] A construction reference information generation method according to aspect 5 of the present invention is a construction reference information generation method used in a display device that overlays virtual objects in an arrangement corresponding to the position in the real space on the field of view of a worker viewing the real space where a building is to be constructed, or on an image representing the real space, and generates construction reference information related to the virtual objects, the method comprising: a data acquisition step of acquiring building design data showing the design of at least a part of the building, and object design data showing the design of a construction object to be constructed on the building; and a construction reference information generation step of generating the construction reference information based on the building design data and the object design data.

[0083] The construction reference information generation program of aspect 6 of the present invention is a construction reference information generation program for causing a computer to function as the construction reference information generation device in aspect 1 above, and causes the computer to function as the data acquisition unit and the construction reference information generation unit.

[0084] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. [Explanation of symbols]

[0085] 1. Smart Glasses 2. Control section 3 Projection section 4. Imaging unit 5 Storage section 6. Communications Department 7 Audio input / output section 111 Safety Helmet 11 Construction reference information generation device 112 Control Unit 115 Communications Department 116 Storage section 21 Display control unit 22 Position recognition part 23 Input control section 24 Warning control section 101 Opening 102 Elevator 103 Piano wire 113 Display section 114 Input section Platform 200 201 Floor 202, 300 walls 302 Counterweight 1121 Construction reference information generation department 1122 Data Acquisition Unit D1 Building design data D2 Object design data D3 Construction Reference Information M1 and M2 markers

Claims

1. A construction reference information generating device that is used in a display device that overlays and displays virtual objects in an arrangement corresponding to positions in the real space on a field of view of a worker viewing a real space that is a construction target of a building or on an image that represents the real space, and generates construction reference information related to the virtual objects, a data acquisition unit that acquires building design data that indicates a design of at least a part of the building, and object design data that indicates a design of a construction object to be constructed on the building; a construction reference information generating unit that generates the construction reference information based on the building design data and the object design data.

2. the building design data includes design data indicating a design of at least one of an elevator shaft and a landing to be provided in the building, The construction reference information generating device according to claim 1, wherein the object design data includes design data indicating the design of an elevator-related component as the construction object to be installed in at least one of an elevator shaft and a landing.

3. the building design data includes data indicating an installation position of the construction object in the building, the object design data includes data indicating the size of the construction object, The construction reference information generating unit generates display data of the virtual object by inserting the object design data into the installation position of the construction object in the building design data based on the data indicating the size. The construction reference information generating device according to claim 1.

4. the building design data includes at least one of a floor level position of each floor in the building and a position of a position reference object that is a reference for installing the elevator-related components; The construction reference information generating device according to claim 2, wherein the object design data includes at least one of a positional relationship between the elevator-related component and the floor level and a positional relationship between the elevator-related component and the position reference object.

5. A construction reference information generation method for generating construction reference information related to a virtual object, which is used in a display device that overlays a virtual object on a field of view of a worker viewing a real space that is a construction target of a building or an image representing the real space, in an arrangement corresponding to a position in the real space, and which generates construction reference information related to the virtual object, a data acquisition step of acquiring building design data indicating a design of at least a part of the building and object design data indicating a design of a construction object to be constructed on the building; a construction reference information generating step of generating the construction reference information based on the building design data and the object design data.

6. A construction reference information generation program for causing a computer to function as the construction reference information generation device described in claim 1, the construction reference information generation program causing a computer to function as the data acquisition unit and the construction reference information generation unit.

Images