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

Abstract

A construction reference information generating device is provided that can efficiently create 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] The system includes a data acquisition unit (1122) that acquires building design data indicating the design of at least a part of a building, and object design data indicating the design of a construction object to be constructed on the building, and a construction reference information generation unit (1121) that generates construction reference information based on the building design data and the object design data.

Description

[Technical field]

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

[0002] Conventionally, in construction work, a method has been proposed in which information required for the work is displayed superimposed on the real space on a display device such as smart glasses worn by a worker while the work is being performed. For example, Patent Document 1 discloses a projection device that scans the real space, recognizes 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] JP 2018-163466 A 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 object onto the real space where the work is to be performed. For example, this overlay display technology can 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 has a long structure vertically. Landings are also provided on each floor. Since many different components are installed in such shafts and landings, the amount of data used as construction reference information for overlay display is enormous. If such a huge amount of data is created from scratch, there is a problem in that the amount of work required for creation is extremely large.

[0005] One aspect of the present invention aims to provide a construction reference information generating device that can efficiently create data as construction reference information for use in a display device that overlays virtual objects in an arrangement according to positions 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 a 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.

[0007] In order to solve the above problems, the construction reference information generating method of the present invention is used on a display device that overlays virtual objects in an arrangement corresponding to a 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 for the virtual objects.The method includes 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.

[0008] The construction reference information generating device relating 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. Effect of the Invention

[0009] According to the present invention, since construction reference information is generated based on existing building design data and object design data, for example, it is possible to efficiently create data as construction reference information. [Brief description 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. [Diagram 2] 1 is a block diagram showing an outline of a configuration of smart glasses 1 according to an embodiment of the present invention; [Diagram 3] FIG. 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. [Figure 4] 1 is a perspective view showing an outline of an elevator hall 200 and a hoistway 102 to which the elevator is to be constructed. [Diagram 5] 1 is a perspective view showing an outline of an opening 101 as viewed from inside a hoistway 102. FIG. [Figure 6] FIG. 13 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 at a predetermined height in a hoistway 102. FIG. [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. [Figure 9] 9 shows object design data D2 relating to the IRP bracket IRPB, in which 901 is a plan view of the IRP bracket IRPB and 902 is a front view of the IRP bracket IRPB. [Figure 10] 4 is a flowchart showing a flow of a construction reference information generation process according to the embodiment of the present invention. [Figure 11] 2 is a flowchart showing a process flow of an elevator installation method according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

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

[0012] (Overview 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 constructing 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 in the real space. That is, the smart glasses 1 overlay and display 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 elevator shaft. 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 constructions carried out in the construction of a building.

[0014] FIG. 6 shows a state in which an IRP bracket IRPB to which an IR plate (inductor plate) IRP is attached is overlaid on the real space as an example of a virtual object. The IR plate IRP is a member that indicates the stopping position of an elevator car, and when the IR plate IRP blocks a sensor attached to the car, it is determined whether the car has landed at a predetermined position on each floor. This IR plate IRP is attached to a rail RL in the elevator shaft via an IRP bracket IRPB. As shown in FIG. 6, the IR plate IRP and the IRP bracket IRPB are displayed as virtual objects so as to be attached to a wall surface 300 in the real space and a rail RL arranged in a space a predetermined distance away from the wall surface 300. This allows the worker to confirm the position in the three-dimensional space where the construction work should be performed in the real space. Therefore, it is not necessary to measure and confirm the position where the construction work should be performed in the real space with a tape measure, and the workability can be improved.

[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 an external real space captured by a camera and an image of a virtual object may be used. In addition, instead of a head-mounted display, 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 by wire may be used as the display device according to the present invention.

[0016] The virtual object as the construction reference information is displayed based on three-dimensional CAD data or two-dimensional CAD data generated based on the design specifications of the construction target. The CAD data may be generated based on information of a three-dimensional model generated as BIM (Building Information Modeling), for example. In BIM, various information such as the quantity, part number, dimensions, material, performance, and price of each part is included as object information in the three-dimensional model, so at least one of these pieces of information may be displayed as the construction reference information. Details of the method of generating the 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 the construction of the elevator. The projection unit 3 projects an image onto the half mirror, thereby allowing the worker, who is the wearer of 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 from each other, thereby allowing the virtual object to be displayed as if it is three-dimensionally arranged at a predetermined position in the real space. This allows the worker to recognize the construction position as a three-dimensional position in the real space.

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

[0020] The display control unit 21 may acquire the construction reference information from the outside via the communication unit 6. The communication unit 6 may communicate with a PC or a server in a local network via a wireless LAN, for example, or with an external server via the Internet. 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 the markers M1 and M2 (details will be described later) placed at predetermined positions in real space captured by the imaging unit 4. In addition, the position recognition unit 22 is capable of position recognition with 6DoF (Degree of Freedom). As a result, once the worker has had the position recognized by the position recognition unit 22 using the markers M1 and M2, the worker can view the virtual object while maintaining its relative positional relationship with the real space even if the worker subsequently changes or moves the viewing direction.

[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, an image as an input interface is displayed in real space as a virtual object by the display control unit 21, and an instruction input from the worker is received by image recognition of the worker's virtual touch with a finger or the like.

[0023] Also, 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 by performing voice recognition, 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 by 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 the warning method 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 the like.

[0026] The warning condition may be 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 at the timing when the possibility of the worker falling into the elevator shaft increases, thereby further improving the safety of the worker.

[0027] At least one of the functions 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 real space where elevators are 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 at a stage in the middle of building construction. In this state, an opening 101 exists between the hall 200 and the hoistway 102 as an entrance for the elevator. 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 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 formed of a rectangular planar member, and a predetermined pattern is formed on the surface. By arranging such markers M1 and M2 at predetermined positions near the opening 101 in 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 platform, but the present invention 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 two markers are sufficient for position recognition.

[0031] In addition, in this embodiment, the markers M1 and M2 are provided at the landing 200, but the markers may be provided within the hoistway 102.

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

[0033] FIG. 5 is a perspective view showing the outline of 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 object (reference line), it is possible to maintain high accuracy in the installation positions of the markers M1·M2. Note that the present invention is not limited to piano wires, and any strong wire member with a sufficiently thin diameter may be used.

[0034] Also, for example, a laser beam may be used as a position reference object. That is, by irradiating the laser beam vertically downward from a predetermined position in the upper part of the elevator shaft 102, or by irradiating the 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, in the case of laser beam, the thickness of the beam tends to increase as the distance from the light source increases, so there is a possibility that the influence of errors due to the thickness of the beam may occur depending on the height of the building. Also, a reference point (architectural markings) marked on the landing of each floor may be used as a position reference object.

[0035] In addition, multiple landings 200 will be provided for each floor for one elevator, and it is preferable to install the marker in the same location in each landing 200 with respect to the elevator entrance, i.e., in the same relative position with respect to the entrance.

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

[0037] (Configuration of construction reference information generating device) Next, a construction reference information generating device 11 that generates construction reference information will be described. 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 thereto, and may be configured such that at least a part of the processing is executed 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 storage unit 116.

[0039] The building design data D1 is data showing the design of at least a part of the building, and more specifically, includes design data showing the design of at least one of the elevator shaft 102 and the floor surface 201 of the hall 200 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 (e.g., a hoistway and a landing), and acquire design data of the part specified by the user as the building design data D1.

[0041] The object design data D2 is data showing the design of a construction object to be constructed on a building, and more specifically, includes design data showing the design of elevator-related components as a construction object 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 a construction object is constructed in at least one of the elevator hoistway 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 construction objects are constructed in shared spaces such as escalators, stairs, corridors, and entrances of buildings, and individual spaces such as rooms.

[0043] For example, the data acquiring 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. The data acquiring unit 1122 may also present the user with a list indicating the types of construction objects, and acquire design data of the construction object designated 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 generating unit 1121 generates construction reference information D3 based on the building design data D1 and the object design data D2 acquired by the data acquiring 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 are the 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 the building design data D1, and shows a horizontal cross section at a predetermined height in the elevator shaft 102. As shown in the figure, the positions where the car 301, counterweight 302, rail RL, etc. are arranged in the elevator shaft 102 are shown, and the positions where the wall surface 202, opening 101, etc. are arranged in the landing 200 are shown. Here, since the IRP bracket IRPB is installed on the rail RL, the rail RL becomes the position reference object. That is, the data as 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 the position in the horizontal plane is constant regardless of the height.

[0048] Fig. 8 shows an example of building design data D1, and shows a vertical cross-sectional view 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 mounting position of the IRP bracket IRPB in the vertical direction. In other words, the positional relationship between the floor level FL and the IRP bracket IRPB becomes clear from the data shown in Fig. 8.

[0049] 9 shows object design data D2 related to the IRP bracket IRPB, in which 901 shows a plan view of the IRP bracket IRPB and 902 shows a front view of the IRP bracket IRPB. As shown in the figure, a state in which the IRP bracket IRPB is attached to the rail RL with bolts and nuts, and a 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, so by combining the 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 generating unit 1121 generates construction reference information in which the display position of the virtual object corresponding to each construction object in 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 in the building. In addition, based on the building design data D1 and the object design data D2, it is possible to generate display data of 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 example of an IRP bracket IRPB and an IR plate IRP are described as the construction object, but the construction object is not limited to this and may be, for example, the construction object as shown below.

[0053] The construction target may be a rail bracket. The rail bracket is a bracket for fixing the rail RL to a wall surface in the elevator shaft 102. The building design data D1 indicates the height direction position of the rail bracket and the center position of the rail RL. The target design data D2 also indicates the state in which the rail bracket is attached to the rail RL together with the dimensions.

[0054] The construction target 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 in the elevator shaft 102. The building design data D1 indicates the floor level position of each floor, the center position of the entrance where the landing door is provided, 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 entrance or the doorstop position of the landing door together with the dimensions.

[0055] The construction target may be a buffer base. The buffer base is a base member for fixing a buffer (shock absorber) that absorbs the shock in case the car or counterweight falls to the lowest pit in the elevator shaft 102, and also plays a role of fixing the rail RL to the bottom surface of the pit. The building design data D1 indicates the position of the pit and the center position of the rail RL. The target design data D2 indicates the positional relationship between various members on the bottom surface of the pit and the rail RL together with their dimensions.

[0056] The construction object may be a cable hanger. The cable hanger is a member for fixing the middle position of a traveling cable (tail cord) that connects 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 in which the cable hanger is attached to the rail RL together with the 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 fixes 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 the machine beam and the floor level of the lowest floor and the rail RL together with their dimensions.

[0058] The construction object may be a limit switch trough. The limit switch trough is a member for mounting a limit switch that detects the position of a car near the top floor or the bottom floor. The building design data D1 indicates the position of the floor level 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 limit switch trough, the floor level of the top floor or the bottom floor, and the rail RL, together with the 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 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 box, the bottom floor level, and the rail RL together with the dimensions. This box may be, for example, a breaker box and a control panel. The breaker box is a box in which a breaker is stored, and the control panel is a device that controls the operation of the elevator. Other examples of boxes include an inverter panel, an insulating transformer panel, and an AC reactor panel.

[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 cage, preventing the rope from swinging. The building design data D1 indicates the position of the floor level 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, together with their dimensions.

[0061] The construction target 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 of the car and the direction of movement. The building design data D1 indicates the floor level position of each floor and the center position of the hall call button. The target design data D2 indicates the positional relationship between the hall button box, the floor level of each floor, and the wall of the hall together with the dimensions.

[0062] The construction target 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 a machine must be installed in the machine room and wired to each other. The base for fixing this electrical panel to the building is the panel base, and the duct that forms the wiring path from each electrical panel to each machine is the floor duct. The building design data D1 indicates the position where the center line in the machine room is 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 together 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 position of each floor in the building and the position of the position reference object that serves as the reference 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 generating 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. After that, in S16, the generated data of the construction reference information is transferred to the smart glasses 1 based on an instruction from the user as necessary. The method of transferring data is not particularly limited. For example, the data may be transferred by communication between the construction reference information generating device 11 and the smart glasses 1 via a wireless LAN or a USB cable. In addition, the construction reference information may be temporarily uploaded from the construction reference information generating device 11 to a cloud server, and the smart glasses 1 may access the cloud server to acquire the data, thereby transferring the data. In addition, the data may be transferred by a storage medium such as a USB memory.

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

[0067] Next, in S2, the worker wears the smart glasses 1, captures an image of the marker by the imaging unit 4, and causes the position recognition unit 22 to perform position recognition processing. After the position recognition is performed, in S3, the display control unit 21 performs an overlay display of the virtual object. Once the worker has caused the position recognition unit 22 to recognize the position by the markers M1 and M2, the worker can visually recognize the virtual object while maintaining its relative positional relationship with the real space even if the worker subsequently changes the viewing direction or moves. In this state, in S4, the worker performs the construction work while checking the construction reference information overlaid and displayed by the display control unit 21. Note that the construction work includes not only the actual construction work but also the check work after the construction work is performed. Then, in S5, the end of the construction work is confirmed, and if the result of S5 is No, i.e., the construction work is continuing, the processing from S3 is repeated, and if the result of S5 is Yes, i.e., the construction work is completed, the processing is terminated.

[0068] The above construction method and smart glasses 1 enable safe and efficient construction of elevators. 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, for example, "Support the development of sustainable and resilient buildings using locally sourced 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 programs for causing a computer to function as the device, and can be realized by programs 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 to realize each function described in each of the above embodiments.

[0071] The program may be non-transitory and may be recorded in 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 provided to the device via any wired or wireless transmission medium.

[0072] In addition, some or all of the functions of each of the control blocks can be realized by a logic circuit. 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 each of the control blocks can 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 be executed by the control device or 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 a 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, since the construction reference information is generated based on, for example, existing building design data and object design data, data as the construction reference information can be efficiently created.

[0076] A construction reference information generating device according to aspect 2 of the present invention may be configured in the above-mentioned aspect 1, wherein the building design data includes design data indicating a 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 a 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 regarding 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 of elevator-related components.

[0078] A construction reference information generating device according to aspect 3 of the present invention may be configured in the above-mentioned aspect 1 such that the building design data includes data indicating an installation position of the construction object in the building, and the object design data includes data indicating a size of the construction object, and 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.

[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 regarding the display of a virtual object of an elevator-related member can be generated based on the floor level position of each floor and the positional relationship with the position reference object.

[0082] A construction reference information generating method according to aspect 5 of the present invention is used in a display device that overlays virtual objects 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, in an arrangement that corresponds to a position in the real space, and generates construction reference information for the virtual objects, the method comprising: 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 generating step of generating the construction reference information based on the building design data and the object design data.

[0083] A construction reference information generation program according to 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 for causing a 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 section 115 Communications Department 116 Memory section 21 Display control unit 22 Position recognition part 23 Input control section 24 Warning control section 101 Opening 102 Hoistway 103 Piano wire 113 Display section 114 Input section 200 platform 201 Floor 202, 300 Wall 302 Counterweight 1121 Construction reference information generation department 1122 Data Acquisition Department D1 Building design data D2 Object design data D3 Construction Reference Information M1, M2 markers

Claims

1. A construction reference information generating device that is used in a display device that displays a virtual object in an overlay manner in accordance with a position in the real space on a field of view of a worker viewing a real space that is a target of construction of a building or an image representing the real space, and generates construction reference information regarding the virtual object, 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, The building design data includes design data showing a design of at least one of an elevator shaft and a landing of an elevator to be provided in the building, The object design data includes design data showing a design of an elevator-related member as the construction object to be provided in at least one of an elevator hoistway and a landing, The building design data includes data indicating an installation position of the construction object in the building, The object design data includes data indicating a 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.

2. 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 component, The construction reference information generating device according to claim 1 , 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.

3. A construction reference information generating method for generating construction reference information for a virtual object, which is used in a display device that displays a virtual object in an overlay manner in accordance with a position 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 an image representing the real space, and which generates construction reference information for 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, The building design data includes design data showing a design of at least one of an elevator shaft and a landing of an elevator to be provided in the building, The object design data includes design data showing a design of an elevator-related member as the construction object to be provided in at least one of an elevator hoistway and a landing, The building design data includes data indicating an installation position of the construction object in the building, The object design data includes data indicating a size of the construction object, The construction reference information generating step is a construction reference information generating method for generating 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.

4. A construction reference information generating program for causing a computer to function as the construction reference information generating device according to claim 1, the construction reference information generating program causing a computer to function as the data acquiring unit and the construction reference information generating unit.

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