Model generation device, model generation method and program

Abstract

To provide a model generation apparatus, and the like, configured to generate a model that performs design so as to maintain quality of air surrounding a person who is likely to stay in a space of a building, in a design stage of the building.SOLUTION: A model generation apparatus includes: an acquisition unit 112 which acquires person attribute information which is information on a person associated with a person attribute object being an object where the person is likely to stay, out of objects; and a calculation unit 113 which 1) specifies a concentration distribution of sterilizing materials generated by a diffuser in at least one space of a building partitioned by structures, on the basis of information on objects of the structures and arrangement information indicating arrangement of the objects of the structures in the building, and 2) forms an arrangement area indicating an area where the person attribute object can be arranged in the space, using the concentration distribution, predetermined air quality information, and the person attribute information, and arranges the person attribute object in the arrangement area.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a model generation device, a model generation method, and a program, and in particular to a model generation device, a model generation method, and a program that generate a model of a building using information about structures that constitute a building, as well as information about building objects including air conditioning equipment and furniture that are arranged in the building. [Background technology]

[0002] In the design stage of a building, the required ventilation volume within the building is calculated based on the Building Standards Act, etc., a ventilation calculation table is created based on the required ventilation volume, and ventilation equipment is selected and placed. Traditionally, ventilation calculation tables were created manually by workers, but in recent years, ventilation calculation tables have been created easily using BIM (Building Information Modeling).

[0003] For example, Patent Document 1 discloses that attribute information for implementing BIM (Building Information Modeling) is used to calculate ventilation volume and design air balance. According to Patent Document 1, a ventilation calculation table and air balance diagram can be output using BIM at the time of design, and can be used for sick house countermeasures, etc. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-67083 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the technology disclosed in Patent Document 1, the layout of the ventilation equipment is designed to comply with standards such as the Building Standards Act. In other words, the layout of the ventilation equipment is designed so that the ventilation volume throughout the building is equal to or greater than a certain level. However, the technology disclosed in Patent Document 1 has a problem in that the layout of the equipment within the building cannot be designed taking into account the people present in the building when the building is in use. For example, the layout of the equipment within the building cannot be flexibly designed taking into account infection control measures.

[0006] The present disclosure has been made in consideration of the above-mentioned circumstances, and aims to provide a model generation device, a model generation method, and a program that generate a model that can be designed at the building design stage to maintain the air quality around people who may be staying within the building space. [Means for solving the problem]

[0007] In order to solve the above problem, a data generation device according to an embodiment of the present disclosure is a model generation device that generates a model of a building using information on objects of the building, including structures constituting a building, ventilation equipment arranged in the building, furniture arranged in the building, and a diffusion device arranged in the building for diffusing a sterilizing substance, the model generation device including a processor and a memory, and the processor uses the memory to generate a model of the building using information on objects of the building, including structures constituting a building, ventilation equipment arranged in the building, furniture arranged in the building, and a diffusion device arranged in the building for diffusing a sterilizing substance. Then, the equipment is temporarily placed in the building. acquiring person attribute information that is information about the person associated with a person attribute object associated with the person, specifying a concentration distribution of the sterilization substance by the diffusion device in at least one space of the building partitioned by the structure based on information about the object of the structure and placement information indicating the placement of the object of the structure within the building, and creating a placement possible area indicating an area in which the human attribute object can be placed within the space using the concentration distribution, predetermined air quality conditions, and the person attribute information; Using the created possible placement area, it is determined whether the position where the human attribute object is currently placed is acceptable, and if the position is acceptable, the human attribute object at that position is included in the model, and if the position is not acceptable, a required concentration, which is the concentration of the sterilization substance required for the position to be acceptable, is calculated and output based on the concentration distribution, the air quality conditions, and the position.

[0008] Furthermore, these general or specific aspects may be realized by an apparatus, a method, a system, an integrated circuit, a computer program, or a recording medium such as a computer-readable CD-ROM, or may be realized by any combination of an apparatus, a method, a system, an integrated circuit, a computer program, and a recording medium. Effect of the Invention

[0009] According to the data generating device etc. of the present disclosure, it is possible to generate a model that can be used to design a building so that the concentration of the sterilizing substance around people who may be staying in the space of the building is kept within a certain range at the design stage of the building. In other words, according to the data generating device etc. of the present disclosure, it is possible to generate a model that can be used to design a building so that the air quality around people who may be staying in the space of the building is kept within a certain range at the design stage of the building. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 illustrates an example of a model generating device according to an embodiment. [Diagram 2] FIG. 1 is a diagram illustrating a configuration of a model generating device according to an embodiment. [Figure 3A] 13A and 13B are diagrams showing a chair object on which one person sits in accordance with an operation example of the embodiment. [Figure 3B] FIG. 3B is a diagram showing conventional attribute information of the chair object shown in FIG. 3A. [Figure 3C] 3B is a diagram showing attribute information according to the embodiment of the chair object shown in FIG. 3A. FIG. [Figure 4A] 13A and 13B are diagrams showing a desk object that can be used by four people at the same time according to an operation example of the embodiment. [Figure 4B] 4B is a diagram showing attribute information according to the embodiment of the chair object shown in FIG. 4A. FIG. [Diagram 5] FIG. 2 is a block diagram showing a functional configuration of an arithmetic circuit of the model generating device according to the embodiment. [Figure 6] 4 is a flowchart illustrating an example of the operation of the model generating device according to the embodiment. [Figure 7] FIG. 11 is a diagram showing an example of shape data according to an operation example of the embodiment; [Figure 8] FIG. 11 is a diagram illustrating an example of spatial information according to an operation example of the embodiment. [Figure 9] FIG. 11 is a diagram showing an example of ventilation information according to an operation example of the embodiment. [Figure 10] FIG. 11 is a diagram showing an example of concentration distribution of a sterilizing substance according to an operation example of an embodiment. [Figure 11] 13A and 13B are diagrams illustrating an example of a concentration distribution in the height direction according to an operation example of the embodiment. [Figure 12] 13 is a diagram showing an example of an area in which a chair object can be placed, taking into consideration the height direction of the chair object, in accordance with an operation example of an embodiment; FIG. [Figure 13] 13 is a flowchart showing an example of the operation of a model generating device according to a modified example. [Figure 14] FIG. 13 is a diagram showing an example of shape data according to a modified example. [Figure 15] FIG. 13 is a diagram illustrating an example of spatial information according to a modified example. [Figure 16] FIG. 13 is a diagram showing an example of ventilation information according to a modified example. [Figure 17] FIG. 13 is a diagram showing an example of a concentration distribution of a disinfecting substance according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] A data generation device according to one embodiment of the present disclosure is a model generation device that generates a model of a building using information about objects of the building, including structures constituting a building, ventilation equipment to be disposed in the building, furniture to be disposed in the building, and a diffusion device to be disposed in the building for diffusing a sterilizing substance, and the model generation device includes a processor and a memory, and the processor uses the memory to acquire human attribute information that is information about a person associated with a human attribute object that is an object among the objects where a person may be staying, specifies a concentration distribution of the sterilization substance by the diffusion device in at least one space of the building partitioned by the structures based on information about the objects of the structures and placement information indicating the placement of the objects of the structures within the building, creates a placeable area indicating an area in which the human attribute object can be placed within the space, and places the human attribute object in the placeable area using the concentration distribution, predetermined air quality conditions, and the human attribute information.

[0012] In this way, by creating a placeable area for human attribute objects based on human attribute information and concentration distribution, it is possible to design the placement of human attribute objects taking into account the air quality around people who may be staying in the space of the building. This makes it possible to generate a model that can be designed to maintain the concentration of the sterilization substance around people who may be staying in the space of the building within a certain range. In other words, at the design stage of the building, it is possible to generate a model that can be designed to maintain the air quality around people who may be staying in the space of the building.

[0013] Also, for example, the processor may further use the created possible placement area to determine whether the position in which the human attribute object is currently placed is acceptable, and if the position is acceptable, include the human attribute object at that position in the model, and if the position is not acceptable, calculate and output a required concentration, which is the concentration of the sterilization substance required for the position to be acceptable, based on the concentration distribution, the air quality conditions, and the position.

[0014] Also, for example, the model of the building may be included in BIM (Building Information Modeling) data.

[0015] This allows BIM to be used to not only improve the consistency of data such as drawings, but also reduce the effort and time required when corrections are required.

[0016] Moreover, a model generation method according to one embodiment of the present disclosure is a model generation method for generating a model of a building using information about objects of the building including structures constituting a building, ventilation equipment to be disposed in the building, furniture to be disposed in the building, and a diffusion device to be disposed in the building for diffusing a sterilizing substance, the method obtaining human attribute information which is information about a person associated with a human attribute object which is an object among the objects where a person may be staying, specifying a concentration distribution of the sterilizing substance by the diffusion device in at least one space of the building partitioned by the structures based on information about the objects of the structures and placement information indicating the placement of the objects of the structures within the building, creating a placeable area indicating an area in which the human attribute object can be placed within the space using the concentration distribution, predetermined air quality conditions, and the human attribute information, and placing the human attribute object in the placeable area.

[0017] Moreover, a program according to one embodiment of the present disclosure is a program for causing a computer to execute a model generation method for generating a model of a building using information about objects of the building, including structures constituting a building, ventilation equipment to be disposed in the building, furniture to be disposed in the building, and a diffusion device to be disposed in the building for diffusing a sterilizing substance, the program acquiring human attribute information which is information about a person associated with a human attribute object which is an object where a person may be staying among the objects, specifying a concentration distribution of the sterilizing substance by the diffusion device in at least one space of the building partitioned by the structures based on information about the objects of the structures and placement information indicating the placement of the objects of the structures within the building, creating a placeable area indicating an area in which the human attribute object can be placed within the space using the concentration distribution, predetermined air quality conditions, and the human attribute information, and placing the human attribute object in the placeable area.

[0018] (Embodiment) [Hardware configuration] FIG. 1 is a diagram showing an example of a model generating device 1 according to the present embodiment.

[0019] The model generating device 1 is configured with a personal computer or the like, and acquires object data and arrangement information. Then, the model generating device 1 in this embodiment generates a model generated by BIM based on the acquired object data and arrangement information.

[0020] FIG. 2 is a diagram showing a configuration of the model generating device 1 in this embodiment.

[0021] The model generating device 1 includes an input unit 10, an arithmetic circuit 11, a memory 12, an output unit 13, a storage unit 14, a communication unit 15, and a database 16.

[0022] The communication unit 15 communicates with a device external to the model generation device 1. The communication may be wireless communication or wired communication. The wireless communication method may be Wi-Fi (registered trademark), Bluetooth (registered trademark), ZigBee, or other methods. For example, the communication unit 15 communicates with an external device and receives a data set Ds held by the device.

[0023] The input unit 10 functions as an HMI (Human Machine Interface) that accepts input operations by a user, and includes, for example, a keyboard, a mouse, a touch sensor, a touch pad, and the like.

[0024] The output unit 13 has a display for displaying images or characters, and the display is, for example, a liquid crystal display, a plasma display, an organic EL (Electro-Luminescence) display, etc. The output unit 13 may have a printer for printing images or characters, and may have a function of storing data output from the arithmetic circuit 11 in the memory unit 14.

[0025] The storage unit 14 stores a program (i.e., a computer program) 104a in which each command to the arithmetic circuit 11 is written. The storage unit 14 may also store each temporary data 104b temporarily generated by the processing of the arithmetic circuit 11. The storage unit 14 is a non-volatile recording medium, for example, a magnetic storage device such as a hard disk, an optical disk, or a semiconductor memory. The program 104a is provided to the model generating device 1 via, for example, a removable medium or a network, and is stored in the storage unit 14. The removable medium is, for example, a CD-ROM (Compact Disc Read Only Memory), a flash memory, or the like. For this reason, the communication unit 15 may be provided with an interface for reading the program 104a from the removable medium.

[0026] The program 104a that is read and expanded by the arithmetic circuit 11 is temporarily stored in the memory 12. Such a memory 12 is, for example, a volatile RAM (Random Access Memory).

[0027] The arithmetic circuit 11 is a circuit that executes the program 104a expanded in the memory 12, and is, for example, a CPU (Central Processing Unit) or a GPU (Graphics Processing Unit). When executing the program 104a, the arithmetic circuit 11 may use each temporary data 104b stored in the storage unit 14.

[0028] The database 16 is a non-volatile recording medium, similar to the storage unit 14, and is, for example, a magnetic storage device such as a hard disk, an optical disk, a semiconductor memory, etc. For example, the arithmetic circuit 11 acquires BIM data and person attribute information from an external device via the network and the communication unit 15, and stores the acquired BIM data and person attribute information in the database 16.

[0029] In this embodiment, the storage unit 14 and the database 16 are different recording media, but the storage unit 14 and the database 16 may be configured as a single recording medium including them.

[0030] [BIM data] The BIM data and human attribute information included in the database 16 shown in Fig. 2 can be acquired from an external device. The BIM data includes object data, location information, and a 3D model of the building.

[0031] BIM constructs a building in a virtual three-dimensional space (3D space) on a computer based on object data and the layout information associated with the object data, and creates a 3D model of the building on the computer. With BIM, information on planning, design, construction, and maintenance is centralized and utilized. Therefore, by using BIM, it is possible to improve the consistency of drawings at the time of design, and further reduce the effort and time required for revisions.

[0032] A 3D model of a building created by BIM includes objects such as building material parts and fixtures. The objects include foundation objects such as building material parts and fixtures, ventilation equipment objects such as air intakes and exhausts, furniture objects such as desks and chairs, and diffusion device objects such as diffusion devices.

[0033] Foundation objects are objects that make up the structure of a building, such as walls, columns, and fixtures. In the design stage of a building, a basic design drawing for the structure of the building is first created, for example, to draw the concept of the building. The placement of the foundation objects is decided in the basic design. The placement information included in the BIM data includes information indicating the positions of objects within the building, and is associated with the foundation object data. A 3D model of the building is generated based on the foundation object data and the placement information associated with the foundation object data.

[0034] A ventilation equipment object is an object related to the ventilation of a building, such as an air intake, an exhaust, and an air conditioner. The object data of a ventilation equipment object is also called HVAC (Heating, Ventilation, and Air Conditioning) data. HVAC refers to an air conditioning system that includes heating, ventilation, and air conditioning. A ventilation equipment object is a ventilation equipment object that is fixed to a foundation structure object. The placement of the ventilation equipment object is determined in the detailed design. In the detailed design, the specific specifications of the ventilation equipment object and the furniture object are determined based on the basic design drawing, and a detailed design drawing (model) that reflects the determined specifications is created. The position of the ventilation equipment object may be determined during the basic design.

[0035] The furniture objects are objects related to furniture arranged in a building, such as chairs, desks, and storage shelves. The furniture objects include ventilation-related objects that are not fixed to a foundation structure object, such as electric fans and air purifiers. In other words, the furniture objects are objects whose arrangement can be changed after the design of a building and while the building is in use. The arrangement of the furniture objects is determined after the arrangement of the ventilation equipment objects is determined during the basic design.

[0036] The diffusion device object is an object related to a diffusion device that is placed in a building, such as a diffusion device for diffusing a sterilizing substance. The diffusion device object includes objects related to ventilation that are not fixed to a foundation structure object, such as an electric fan or an air purifier. The placement of the diffusion device object is determined after the placement of the ventilation equipment object is determined at the time of basic design.

[0037] An object represents some kind of entity to be processed by the model generating device 1, and object data represents the object as a collection of symbols and numerical values. The object data includes 3D information of the object, as well as attribute information such as dimensions, material, performance, and material unit price. The attribute information is information indicating attributes, and is information unique to the object and indicating its characteristics. The object data includes multiple object data.

[0038] For example, Fig. 3A and Fig. 3B show object data of a chair object, which is an example of a furniture object. The chair object shown in Fig. 3A is one of the objects provided by, for example, Revit User Group (RUG). The 3D shape of the chair shown in Fig. 3A is 3D information of the chair object. Also, the constraints, material / finish, dimensions, and identification information shown in Fig. 3B are attribute information of the chair object. The attribute information shown in Fig. 3B is attribute information included in a chair object for one person to sit on, provided by, for example, RUG (Revit User Group).

[0039] [Person attribute information] The person attribute information is associated with objects included in the BIM data where a person may stay. An object associated with the person attribute information is called a person attribute object. A person attribute object is an object where a person may stay, such as a desk, a chair, or a bed. A person attribute object may be a furniture object, a diffusion device object, a ventilation equipment object, or a foundation structure object. In addition to conventional BIM data, the present disclosure uses person attribute information.

[0040] The person attribute information includes, for example, the number of people, the direction, the person coordinates, and the staying rate. The number of people may be the maximum number of people expected to stay around the person attribute object. The direction may be the face direction that the person is expected to face when staying around the person attribute object. The person coordinates may be the face coordinates of the person staying around the person attribute object when staying around the person attribute object. The staying rate may indicate, in percentage, how long the person is expected to stay around the person attribute object during a predetermined time when staying around the person attribute object. The staying rate can be used, for example, to calculate the power consumption of the ventilation equipment, and further, the total cost can be calculated by using the lifetime power amount and the initial cost. Therefore, the staying rate can be used as useful information when selecting the ventilation equipment. Note that people staying around the human attribute object means that people stay at a predetermined distance from the center or end of the human attribute object, and the predetermined distance may be set by the user.

[0041] FIG. 3C shows attribute information of the chair object shown in FIG. 3A and person attribute information associated with the chair object. The person attribute information includes the number of people, the direction, person coordinates X to Z, and the staying rate. The number of people indicates the number of people assumed to sit on the chair object shown in FIG. 3A, and is 1 person in the example shown in FIG. 3C. The direction indicates the direction of the face of a person when the person sits on the chair object shown in FIG. 3A, and is the front direction in the example shown in FIG. 3C. The person coordinates X, Y, and Z are the coordinates of the face of a person when the person sits on the chair object shown in FIG. 3A, and are 0, 0, and 1200 in the example shown in FIG. 3C. The person coordinates X and Y of the chair object shown in FIG. 3A are 0. The origin of the XY coordinates is the center of the chair object. On the other hand, the person coordinate Z is 1200 (mm) because it is the height of the face of the person when the person sits on the chair object shown in FIG. 3A. The staying rate indicates how much time is spent staying (sitting) on ​​the chair object shown in FIG. 3A during one hour as a percentage, and is 80% in the example shown in FIG. 3C.

[0042] The person attribute information of the person attribute object as shown in Fig. 3A can be acquired by an add-on function of BIM or the like after acquiring conventional attribute information as shown in Fig. 3B, for example. In this case, the model generation device 1 acquires the person attribute information of the person attribute object from a server that provides the person attribute information of the person attribute object via the Internet using the add-on function of BIM.

[0043] Fig. 4A is a diagram showing a desk object that can be used by four people at the same time according to an operation example of this embodiment, Fig. 4B is a diagram showing attribute information of the desk object shown in Fig. 4A according to this embodiment.

[0044] The furniture object having the person attribute information as described above is not limited to a chair object, but may be a desk object. In Fig. 4A and Fig. 4B, object data of a desk object, which is an example of a furniture object, is shown. The desk object shown in Fig. 4A is one of the objects provided by, for example, RUG. The 3D shape of the desk shown in Fig. 4A is the 3D information of the desk object. The attribute information shown in Fig. 4B is the attribute information included in a desk object that can be used by four people at the same time, which is provided by, for example, RUG. The attribute information according to the present embodiment shown in Fig. 4B includes person attribute information corresponding to the desk object shown in Fig. 4A. The example of the person attribute information shown in Fig. 4B includes contents related to items of identification information such as the number of people, the direction, the person coordinates X to Z, and the stay rate. These contents are as described above, so detailed explanations will be omitted here.

[0045] [Function configuration] FIG. 5 is a block diagram showing the functional configuration of the arithmetic circuit 11. As shown in FIG.

[0046] The arithmetic circuit 11 executes the program 104a to realize a plurality of functions for generating a building model. Specifically, the arithmetic circuit 11 includes an acquisition unit 112, a calculation unit 113, and a result output unit 114. These components are realized by the arithmetic circuit 11 executing the program 104a.

[0047] By executing the program 104a, the arithmetic circuit 11 realizes multiple functions for generating a building model in BIM using information about the structures that make up the building, as well as information about the building objects including ventilation equipment, diffusion devices, and furniture that are placed in the building.

[0048] [Acquisition unit 112] The acquisition unit 112 acquires object data and person attribute information. More specifically, the acquisition unit 112 acquires at least the object data and the person attribute information associated with a person attribute object among the objects.

[0049] In this embodiment, the acquisition unit 112 acquires data for generating a BIM. The acquisition unit 112 acquires, as data for generating a BIM, information on structures constituting a building, and information on objects of the building including ventilation equipment, diffusion equipment, and furniture arranged in the building. The acquisition unit 112 also acquires predetermined air quality conditions as data for generating a BIM.

[0050] [Calculation unit 113] The calculation unit 113 performs calculations to generate a model of a building using BIM. The calculation unit 113 may generate the model on the cloud.

[0051] In this embodiment, the calculation unit 113 generates the model using the data for generating the BIM acquired by the acquisition unit 112.

[0052] The calculation unit 113, for example, uses information about structures and objects acquired by the acquisition unit 112 to specify a concentration distribution of the sterilization substance by the diffusion device in at least one space of a building partitioned by structures. The information about structures and objects is, for example, object data, placement information associated with the object data, and human attribute information. Furthermore, the calculation unit 113 creates an arrangement possible area indicating an area in which human attribute objects can be arranged in space, using the specified concentration distribution, predetermined air quality conditions, and human attribute information.

[0053] The area where furniture can be placed is an area that indicates whether or not a human attribute object can be placed, and is an area where furniture can be placed so that people can stay while maintaining air quality.

[0054] Furthermore, the calculation unit 113 may use the created arrangement possible area to determine whether the position where the human attribute object is currently arranged is permissible. If the calculation unit 113 determines that the position is permissible, it may generate a model including the human attribute object at the position. On the other hand, if the calculation unit 113 determines that the position is not permissible, it may calculate a required concentration, which is a concentration required for the position to be permissible, based on the identified concentration distribution, predetermined air quality conditions, and the position, and output the result to the result output unit 114. The calculation unit 113 can output not only the required concentration but also other information. A specific embodiment will be described in an operation example described later.

[0055] [Result output section 114] The result output unit 114 outputs the model obtained by the calculation unit 113. In addition, the result output unit 114 may output, for example, the arrangement possible area created by the calculation unit 113, or may output a model including a human attribute object arranged based on the arrangement possible area created by the calculation unit 113.

[0056] [Operation of model generator 1] An example of the operation of the model generating device 1 configured as above will be described below.

[0057] FIG. 6 is a flowchart showing an example of the operation of the model generating device 1 according to the present embodiment.

[0058] Fig. 7 is a diagram showing an example of shape data according to an operation example of the present embodiment. Fig. 8 is a diagram showing an example of space information according to an operation example of the present embodiment. Fig. 9 is a diagram showing an example of ventilation information according to an operation example of the present embodiment.

[0059] The operation example shown in FIG. 6 is performed at the time of detailed design, so the creation of a basic design drawing for the structure of the building has been completed. That is, the placement information of the foundation structure object has been determined. The 3D model of the building after the basic design is defined as an initial model. The initial model is a model generated from the data of the foundation structure object and the placement information associated with them. The initial model may not include a ventilation equipment object, a diffusion device object, and a furniture object. In this operation example, the shape of the room of the building partitioned by rooms and corridors is determined by a plan view or an elevation view, and an initial model including a room plan view 100 shown in FIG. 7, for example, is determined. In the example shown in FIG. 7, the shape of the room is determined, and an air intake port object 122 indicating an object of an air intake port and an exhaust port object 121 indicating an object of an exhaust port are arranged in a space 123 indicating the space of the room. In addition, in the example shown in FIG. 7, a diffusion port object 124 indicating an object of a diffusion port through which the diffusion device diffuses a substance (sterilization substance) that sterilizes the air quality is also arranged. Here, the locations of the intake port object 122, the exhaust port object 121, and the diffusion port object 124 are determined once for the purpose of generating the model, but it is also possible to change the locations after the model is generated.

[0060] First, the model generating device 1 generates and acquires spatial information of a target space from BIM data (S1). Specifically, the acquisition unit 112 of the model generating device 1 generates spatial information based on an initial model in the BIM data. In this operation example, the target space is a room for which an arrangement possible area is to be specified. The spatial information is information indicating an object and information indicating the size of the space. The acquisition unit 112 of the model generating device 1 acquires, for example, spatial information shown in FIG. 8 as information regarding the spatial arrangement of objects and information regarding shapes from an initial model including a room floor plan 100 shown in FIG. 7 generated at the time of basic design. In the example of spatial information shown in FIG. 8, information such as a building ID, a room ID, a space ID, an area, and a volume, an exhaust vent ID of an exhaust vent object 121 existing in a space 123 linked to the space ID, an intake vent ID of an intake vent object 122, and a diffusion vent ID of a diffusion vent object 124 are shown. Note that the model generation device 1 acquires a room floor plan 100 as shown in FIG. 7 from the initial model, but is not limited to this, and may acquire a three-dimensional view of the room from the initial model.

[0061] Next, the model generating device 1 acquires ventilation information of the space from the HVAC data (S2). In this operation example, the user provisionally determines the approximate placement positions of the equipment in advance using the model generating device 1, and includes the provisionally determined placement positions of the equipment in the HVAC data. The ventilation information is information about an object that ventilates the space.

[0062] In this embodiment, the acquisition unit 112 of the model generating device 1 acquires ventilation information of a target space from HVAC data. In this operation example, the model generating device 1 acquires, for example, ventilation information shown in FIG. 9, that is, the spatial arrangement and ventilation capacity of HVAC objects, from HVAC objects included in the HVAC data generated at the time of basic design. In the example of ventilation information shown in FIG. 9, control information of ventilation attributes IN, air volume QA, and wind direction DA for the air supply port object 122 indicated by an ID of O11, and control information of ventilation attributes OUT, air volume QB, and wind direction DB for the air exhaust port object 121 indicated by an ID of I11 are shown. In addition, the ventilation information shown in FIG. 9 includes diffusion information, and the control information of ventilation attributes OUT, air volume QC, and wind direction DC for the diffusion port object 124 indicated by an ID of D11 is shown as the diffusion information. Note that OUT means exhaust and IN means intake. 9 shows the X and Y coordinates in the room plan 100 shown in FIG. 7 as the arrangement information of the air intake port object 122 with the ID of O11 and the air exhaust port object 121 with the ID of I11. Furthermore, FIG. 9 shows the X and Y coordinates in the room plan 100 shown in FIG. 7 as the arrangement information of the diffusion port object 124 with the ID of D11. Note that the model generation device 1 is not limited to acquiring the planar arrangement and the planar ventilation capacity and diffusion capacity as shown in FIG. 9 as the ventilation information including the diffusion information. The model generation device 1 may acquire the three-dimensional arrangement and the three-dimensional ventilation capacity and diffusion capacity as the ventilation information and the diffusion information. Hereinafter, the operation example will be continued by returning to FIG. 6.

[0063] Next, the model generating device 1 uses the information acquired in steps S1 and S2, ie, the space information and the ventilation information, to identify a concentration distribution of the sterilizing substance that indicates the distribution of the concentration of the sterilizing substance in the space (S3).

[0064] FIG. 10 is a diagram showing an example of the concentration distribution of the sterilizing substance according to an operation example of this embodiment.

[0065] In this operation example, the calculation unit 113 of the model generating device 1 uses data for generating the BIM, that is, the space information and ventilation information acquired in steps S1 and S2, to specify the concentration distribution of the sterilization substance by the diffusion device in the space. Here, the sterilization substance may be, for example, OH radicals, hypochlorous acid water, or hypochlorous acid gas, but is not limited thereto, and may be any substance capable of sterilization, such as alcohol, ozone, or hydrochloric acid. In addition, the model generating device 1 specifies the concentration distribution of the sterilization substance, which indicates an area in the space where a certain range of concentration can be ensured, as shown in FIG. 10, for example. In the example shown in FIG. 10, a concentration distribution diagram 300 including areas in which the concentration of the sterilization substance in the room plan diagram 100 shown in FIG. 7 is indicated as the concentration distribution of the sterilization substance, is shown as 10 ppb (parts per billion), 50 ppb, and 100 ppb. The region indicated as 10 ppb indicates a concentration distribution region of 10 ppb or more and less than 50 ppb, the region indicated as 50 ppb indicates a concentration distribution region of 50 ppb or more and less than 100 ppb, and the region indicated as 100 ppb indicates a concentration distribution region of 100 ppb or more and less than 500 ppb. The model generating device 1 may specify a three-dimensional concentration distribution as the concentration distribution, not limited to a two-dimensional concentration distribution as shown in FIG. 10. Hereinafter, the operation example will be continued by returning to FIG. 6.

[0066] Next, the model generating device 1 creates and outputs an arrangement possible area in which a predetermined object can be arranged, using the concentration distribution specified in step S3, the predetermined air quality conditions, and the attribute information of the data for generating the BIM. In this embodiment, the calculation unit 113 of the model generating device 1 creates an arrangement possible area indicating an area in which a human attribute object can be arranged in the space, using the concentration distribution specified in step S3, the predetermined air quality conditions, and the person attribute information of the person attribute object of the data for generating the BIM to be arranged in the space. Note that air quality information, which is information indicating an area in the space that satisfies the air quality conditions, may be created, and an arrangement possible area may be created and output using the air quality information, the predetermined air quality conditions, and the attribute information of the data for generating the BIM. However, in this operation example, the area indicated by the air quality information and the concentration distribution specified in step S3 are the same, so they are omitted. In addition, the predetermined air quality conditions are conditions for maintaining the quality of air set by standards of public institutions such as laws and regulations, and will be described as the required concentration in this operation example. In the case of hypochlorous acid gas, the required concentration is 500 ppb or less, which is the safety standard for chlorine gas, and 10 to 15 ppb or more, which is the level at which viruses are inactivated. This required concentration is not limited to the standard of an official institution, and may be, for example, a value set by the user. Furthermore, when there is an area in the concentration distribution specified in step S3 where the concentration is 500 ppb or more, which is the safety standard for chlorine gas, the model generating device 1 adjusts the spray concentration so that it does not exceed 500 ppb by adjusting the diffusion information such as the air volume of the diffusion port object 124 of D11 shown in FIG. 9. Then, the model generating device 1 returns to step S3, and using the space information and the corrected ventilation information, it is sufficient to again specify the concentration distribution showing the distribution of the concentration of the sterilizing substance in the space, and then create the possible arrangement area.

[0067] In addition, in this operation example, when placing a chair object shown in FIG. 3A, for example, the model generating device 1 can place a chair object on which one person can sit in all areas shown in the density distribution diagram 300 of FIG. 10 specified in step S4. Similarly, in this operation example, when placing a desk object shown in FIG. 4A, for example, the model generating device 1 can place a desk object on which four people can sit in all areas shown in the density distribution diagram 300 of FIG. 10 specified in step S4. Therefore, the model generating device 1 can create all areas shown in the density distribution diagram 300 of FIG. 10 specified in step S4 as possible areas for placement. Note that the model generating device 1 may create the possible areas by limiting the possible areas to the areas of the density distribution shown in the density distribution diagram 300.

[0068] 10, that is, the concentration of the sterilizing substance used to create the possible placement area is the average concentration of the sterilizing substance at a predetermined height in space, so the model generating device 1 may be caused to create the possible placement area taking into consideration the height of a person's face when sitting on the chair object (person coordinate Z). This case will be described below.

[0069] Fig. 11 is a diagram showing an example of density distribution in the height direction according to an operation example of this embodiment. The dashed line shown in density distribution diagram 310 of Fig. 11 represents the height of the face (coordinate Z=1200). Fig. 12 is a diagram showing a possible arrangement area taking into account the height direction of a chair object according to an operation example of this embodiment.

[0070] That is, in this operation example, in step S3, the model generating device 1 specifies a three-dimensional concentration distribution as shown in the concentration distribution diagram 310 of FIG. 11 in step S3.

[0071] Next, in step S4, the model generating device 1 creates an arrangement possible area 411 taking into consideration the height direction as an arrangement possible area for a chair object on which one person can sit, as shown in an arrangement possible area diagram 410 in Fig. 12. In the example shown in Fig. 12, the model generating device 1 creates an area (width) that coincides with the height of the face among the areas shown by the density distribution in Fig. 11, as an arrangement possible area taking into consideration the height direction.

[0072] Then, the model generating device 1 may display only the area where the planar arrangement area limited to the area of ​​the density distribution shown in Fig. 10 overlaps with the arrangement area 411 taking into account the height direction shown in Fig. 12 in two dimensions or three dimensions as the arrangement area of ​​the chair object for convenience. Note that, although the chair object has been described as an example, the same applies to a desk object, and the same can be said for any human attribute object such as furniture.

[0073] Next, the model generating device 1 places the person attribute object using the placeable area of ​​the person attribute object created in step S4 (S5). In this operation example, the calculation unit 113 of the model generating device 1 automatically places the person attribute object on the room floor plan 100 shown in FIG. 7 using the placeable area of ​​the person attribute object such as furniture created in step S4. Here, for example, in Revit, which is a BIM tool from Autodesk, various tasks can be automated by using a script language called Dynamo or a function such as Autodesk Revit API. By using this function, the model generating device 1 can automatically place the person attribute object on the room floor plan 100 shown in FIG. 7 using the placeable area of ​​the person attribute object created in step S4.

[0074] In step S4, the model generating device 1 has been described as obtaining an arrangement possible area map as a creation result, but obtaining this map is not essential as long as the arrangement possible area can be identified. For example, the model generating device 1 may use the concentration distribution map obtained as the identification result in step S3 to limit the arrangement possible area to the area of ​​the concentration distribution map, and then perform the process of step S5 in the same manner as described above.

[0075] After the operation shown in FIG. 6, that is, after the processing of step S5, the model generation device 1 generates a model including the placed human attribute object.

[0076] [Effects, etc.] As described above, according to this embodiment, a BIM model can be generated at the design stage of a building, allowing for a design that maintains the air quality around people who may be staying within the building space.

[0077] More specifically, there is a high possibility that people will stay on or around specific furniture placed in a building. For example, if the furniture is a chair, there is a high possibility that people will sit (stay) on the chair, and if the furniture is a desk, there is a high possibility that people will stay around it. For this reason, it is desirable to maintain a certain level of air quality around furniture where people are likely to stay.

[0078] However, in conventional building designs, the only thing designed was the placement of ventilation equipment to constantly ventilate a certain amount of air within the building.

[0079] In contrast, in this embodiment, attribute information on people (person attribute information) is further included in the attribute information of objects (person attribute objects) that indicate furniture such as desks and chairs where people may stay. Then, the model generation device 1 creates a placeable area for the person attribute object using the concentration distribution of the sterilization substance by the diffusion device and the person attribute information. This allows the model generation device 1 or the designer to easily place the person attribute object in consideration of the air quality around people who may stay in the space of the building, using the placeable area for the created person attribute object. Therefore, the model generation device 1 or the designer can generate a model that can be designed to keep the concentration of the sterilization substance around people who may stay in the space of the building within a certain range at the design stage of the building.

[0080] According to this embodiment, the model generating device 1 may display the specified concentration distribution by superimposing it on a room floor plan included in the shape data. In this case, the model generating device 1 or the designer can easily design the placement and capacity of the HVAC equipment. Furthermore, by using the specified concentration distribution map as air quality information or a placement possible area in a diagram, the model generating device 1 or the designer can easily place a human attribute object that can maintain the air quality around a person even if the person stays for a long time.

[0081] In the above description, it has been assumed that only the diffusion device, the air supply equipment, and the exhaust equipment are arranged in the space shown in the room plan view, and that the ventilation air speed and the diffusion air speed of the sterilizing substance are constant values, but this is not limited to the above. If the ventilation air speed and the diffusion air speed can be controlled, the maximum values ​​can be calculated and used to determine the concentration distribution of the sterilizing substance taking into account the ventilation air speed. Furthermore, if there is equipment other than the air supply equipment and the exhaust equipment, such as an air conditioner, the concentration distribution of the sterilizing substance described above can be determined by taking into account the wind speed and wind direction of each of them. This allows the same processing as that described in the above operation example to be performed.

[0082] In the above, the placement of the human attribute object is determined by creating a placement possible area for the human attribute object, but this is not limited to the above. A placement impossible area in which the air quality (i.e., a certain range of concentration of the sterilization substance) cannot be ensured even if the human attribute object is placed may be created instead, and the placement of the human attribute object may be determined, with the same effect being obtained.

[0083] (Modification) The above-described operational example is not limited to the operational example of the model generating device 1. Another operational example of the model generating device 1 will be described below as a modified example.

[0084] Fig. 13 is a flowchart showing an example of the operation of the model generating device 1 according to the modified example. Fig. 14 is a diagram showing an example of shape data according to the modified example. Fig. 15 is a diagram showing an example of space information according to the modified example. Fig. 16 is a diagram showing an example of ventilation information according to the modified example.

[0085] The operation example shown in FIG. 13 is performed during layout design in which a designer manually performs the layout (placement) of furniture, etc. during or after the detailed design. For this reason, before this operation example is performed, the creation of a basic design drawing for the architectural structure of the building is completed, and the shape of the rooms in the building is also determined. In addition, in this modified example, it is assumed that the design of the placement and capacity of HVAC equipment and the layout of furniture such as chairs and desks are also provisionally determined before the operation example shown in FIG. 13 is performed. That is, as shown in FIG. 14, in the room floor plan 150, a chair object 151 indicated by an ID of H01 and a desk object 152 indicated by an ID of H02 are further provisionally determined (provisionally placed) compared with the room floor plan 100 shown in FIG. 7. In addition, the provisionally placed chair object 151 and desk object 152 have placement information such as the number of available people and placement position set in advance in the attribute information as person attribute information.

[0086] In the following, matters already explained in the above embodiment will be omitted as appropriate, and an operation example will be explained focusing on the differences from the above embodiment.

[0087] First, the model generating device 1 acquires spatial information of a target space from the shape data (S11). In this modification, the model generating device 1 acquires, for example, spatial information shown in Fig. 15 from the shape data including the room floor plan 150 shown in Fig. 14, that is, information on the spatial arrangement and information on the shapes of objects located on the room floor plan 150. Note that the spatial information shown in Fig. 15 is the same as the spatial information shown in Fig. 8, and therefore a detailed description thereof will be omitted here.

[0088] Next, the model generating device 1 acquires ventilation information of the space from the provisionally placed HVAC object (S12). In this modification, the model generating device 1 acquires the ventilation information shown in Fig. 16 from the HVAC object provisionally placed as shown in Fig. 14. Note that the ventilation information shown in Fig. 16 is the same as the ventilation information shown in Fig. 9, so a detailed description thereof will be omitted here.

[0089] Next, the model generating device 1 acquires person attribute information from the provisionally placed person attribute object (S13). In this modification, the model generating device 1 acquires arrangement information included in the person attribute information associated with the desk object 152 and the chair object 151, which are provisionally placed as shown in FIG.

[0090] Next, the model generating device 1 identifies the concentration distribution of the sterilizing agent in the space by using the information acquired in steps S11 and S12, that is, the space information and the ventilation information (S14).

[0091] Fig. 17 is a diagram showing an example of the concentration distribution of the sterilizing substance according to this modified example. In the example shown in Fig. 17, a concentration distribution diagram 350 including concentration distribution regions in which the concentrations of the sterilizing substance in the room plan diagram 150 shown in Fig. 14 are indicated as 10 ppb, 50 ppb, and 100 ppb is shown as a concentration distribution showing a region in the space where a predetermined concentration can be ensured. Note that the concentration distribution shown in Fig. 17 is similar to the concentration distribution shown in Fig. 10, and therefore a detailed description thereof will be omitted here.

[0092] Next, the model generating device 1 creates a possible placement area where a predetermined object can be placed, using the concentration distribution of the sterilizing substance specified in step S14, the predetermined air quality conditions, and attribute information of the data for generating the BIM (S15). In this modified example, the calculation unit 113 of the model generating device 1 creates a possible placement area indicating an area where a human attribute object can be placed in the space, using the concentration distribution specified in step S13, the predetermined air quality conditions, and human attribute information of a human attribute object to be placed in the space.

[0093] In addition, air quality information, which is information indicating the area in the space that satisfies the air quality conditions, may be created, and a possible placement area may be created and output using the air quality information, the predetermined air quality conditions, and attribute information of the data for generating the BIM. In this modified example, the area indicated by the air quality information and the concentration distribution identified in step S14 are the same, so they are omitted.

[0094] In this modification, the concentration distribution area identified in step S13 and the possible arrangement area created in step S14 are the same, so the possible arrangement area created in step S14 is not illustrated. Note that, for example, the model generating device 1 may use the concentration distribution map obtained as the identification result in step S13 to limit the possible arrangement area to the area of ​​the concentration distribution map, and then perform the processes in and after step S16.

[0095] Next, the model generation device 1 determines whether the provisionally determined current arrangement of the object with human attributes is permitted (S16). In this modification, the model generation device 1 determines whether the position where the object with human attributes is currently arranged is permitted, using the arrangement possible area created in step S15.

[0096] In step S16, if the current arrangement of the human attribute objects is permitted (Yes in S16), the model generation device 1 ends the process shown in FIG. 13 and generates a model including the current arrangement of the human attribute objects. In this modified example, since the concentration distribution diagram 350 in FIG. 17 is also a possible arrangement area diagram, it can be seen that the air quality can be ensured with the current arrangement of the chair object 151 of H01. In other words, the current arrangement is permitted. As described above, in this modified example, if the disinfecting substance is hypochlorous acid gas, the air quality satisfies the concentration within the range of 500 ppb or less, which is the safety standard for chlorine gas, and 10 to 15 ppb or more, at which viruses are inactivated.

[0097] On the other hand, in step S16, if the current arrangement of the human attribute object is not permitted (No in S16), the model generating device 1 calculates a required density for permitting the current arrangement of the human attribute object (S17).

[0098] In this modification, the concentration distribution diagram 350 in FIG. 17 can be interpreted as a possible arrangement area diagram, so it can be seen that the air quality cannot be ensured with the current arrangement of the desk object 152 of H02. In other words, the current arrangement is not permitted. For this reason, the model generation device 1 calculates the necessary amount of spray to allow the current arrangement of the desk object 152 of H02. For example, the model generation device 1 calculates how much ventilation volume and diffusion volume (spray volume) of the diffusion material are required to allow the current arrangement of the desk object of H02 from the concentration distribution diagram 350 in FIG. 17. Specifically, the model generation device 1 calculates how much ventilation volume and diffusion volume are required to allow the current arrangement of the desk object 152 of H02 by calculating the ratio between the current concentration of the diffusion device and the concentration (required concentration) of the sterilization material required to allow the current position.

[0099] Next, the model generating device 1 confirms with the user whether or not to modify the ventilation information as shown in Fig. 16 (S18). Modification of the ventilation information is not limited to modification of the arrangement and capacity of the ventilation devices, but also includes modification of the arrangement of the diffusion devices, modification of the capacity by replacing the diffusion devices, etc.

[0100] In step S18, when the ventilation information is to be corrected (Yes in S18), the process is started over from step S14 using the ventilation information corrected by the user or the model generating device 1. For example, if the sterilization substance is hypochlorous acid gas and the concentration of the diffusing substance in the current arrangement of the desk object 152 of H02 is 5 ppb, the required concentration of the diffusing substance is 10 ppb, so that the concentration is required to be about twice as high as the current concentration. In this case, when the ventilation information is to be corrected, the user or the model generating device 1 may correct the capacity of the diffusing device by replacing the diffusing device so that the diffusion capacity of the diffusing substance is doubled. Alternatively, when the current arrangement of the desk object 152 of H02 is fixed, the distance to the nearest concentration distribution of the diffusing substance (concentration distribution area shown as 10 ppb) may be calculated, and the arrangement of the ventilation device and the diffusing device may be corrected by moving the diffusion port object 124 and the exhaust port object 121 closer by that distance.

[0101] On the other hand, if the ventilation information is not to be corrected in step S18 (No in S18), the current human attribute object, whose placement is not permitted, is corrected to be located within the area shown in the possible placement area (S19), and the process is repeated from step S11. For example, the user or the model generating device 1 may correct the placement of the desk object of H02 to be located within the concentration distribution of the nearest diffusive substance (concentration distribution area shown as 10 ppb).

[0102] In this way, the model generating device 1 or the equipment designer may, for example, reselect the ventilation device and the diffusion device, or rearrange the diffusion port, the air supply port, and the exhaust port to correct the ventilation information shown in Fig. 16 so as to correct the ventilation capacity and the diffusion capacity. Alternatively, the model generating device 1 or the equipment designer may correct the position of the desk object of H02 to a position that satisfies the required air quality (concentration of the sterilization substance within a certain range). Note that the model generating device 1 may present these correction method candidates to the equipment designer and have the equipment designer select one, or the equipment designer may make the correction himself.

[0103] In step S16, if the placement of the current human attribute object is not permitted (No in S16), the model generation device 1 may automatically correct the placement of the current human attribute object, the placement of which is not permitted, to a permitted position. As described above, for example, in Autodesk's BIM tool Revit, it is known that various tasks can be automated by using a script language called Dynamo or a function such as Autodesk Revit API. Therefore, by using this function, the model generation device 1 can automatically correct the placement of the current human attribute object, the placement of which is not permitted, to a permitted position. This makes it easy to perform placement design, such as placing a human attribute object at a position where air quality can be ensured.

[0104] [Effects, etc.] As described above, according to this modification, the model generation device 1 can correct the placement of the person attribute object to a permissible position by determining whether the current person attribute object can be placed. This allows the model generation device 1 to generate a BIM model including a person attribute object placed in a permissible position.

[0105] Furthermore, according to this modification, the model generating device 1 creates an area where a person attribute object can be placed, and by using the created area where a person is likely to be present, it becomes easy to check whether the concentration of the sterilization substance is within a certain range. This makes it easier to design HVAC equipment and consider furniture placement, so that a person attribute object can be easily placed in a position where air quality (concentration of the sterilization substance within a certain range) can be ensured. Therefore, not only can the model generating device 1 or the designer easily design HVAC equipment, but furniture can also be easily placed so as to maintain the air quality around people.

[0106] In the present disclosure, furniture objects such as desks, chairs, and beds have been described as examples of human attribute objects, but the present invention is not limited to this.

[0107] Furthermore, in this disclosure, at the design stage, human attribute objects can be taken into consideration when arranging objects such as ventilation equipment and diffusion devices to achieve optimal ventilation and diffusion volumes, thereby making it possible to minimize the energy required for air conditioning.

[0108] The present disclosure is not limited to the above-mentioned embodiment and modified examples. For example, the present disclosure may be realized by combining the components described in this specification in any way, or by excluding some of the components. In addition, the present disclosure also includes modified examples obtained by applying various modifications that a person skilled in the art can think of to the above-mentioned embodiment without departing from the gist of the present disclosure, that is, the meaning of the words described in the claims.

[0109] The present disclosure also includes the following cases:

[0110] (1) The above-mentioned device is specifically a computer system consisting of a microprocessor, ROM, RAM, a hard disk unit, a display unit, a keyboard, a mouse, etc. A computer program is stored in the RAM or hard disk unit. The microprocessor operates according to the computer program, causing each device to achieve its function. Here, the computer program is composed of a combination of multiple instruction codes that indicate commands for a computer to achieve a specified function.

[0111] (2) Some or all of the components constituting the above-mentioned device may be composed of one system LSI (Large Scale Integration). The system LSI is an ultra-multifunctional LSI manufactured by integrating multiple components on one chip, and specifically, is a computer system including a microprocessor, ROM, RAM, etc. A computer program is stored in the RAM. The system LSI achieves its functions by the microprocessor operating in accordance with the computer program.

[0112] (3) Some or all of the components constituting the above-mentioned device may be composed of an IC card or a standalone module that is detachable from each device. The IC card or the module is a computer system composed of a microprocessor, ROM, RAM, etc. The IC card or the module may include the above-mentioned ultra-multifunction LSI. The microprocessor operates according to a computer program, causing the IC card or the module to achieve its functions. The IC card or the module may be tamper-resistant.

[0113] (4) The present disclosure may also be embodied as the methods described above, as a computer program for implementing these methods by a computer, or as a digital signal comprising the computer program.

[0114] (5) The present disclosure may also be a computer program or a digital signal recorded on a computer-readable recording medium, such as a flexible disk, a hard disk, a CD-ROM, an MO, a DVD, a DVD-ROM, a DVD-RAM, a Blu-ray (registered trademark) Disc (BD), a semiconductor memory, etc. Also, the present disclosure may be a digital signal recorded on such a recording medium.

[0115] Furthermore, the present disclosure may involve transmitting the computer program or the digital signal via a telecommunications line, a wireless or wired communication line, a network such as the Internet, data broadcasting, or the like.

[0116] The present disclosure may also provide a computer system having a microprocessor and a memory, the memory storing the above-mentioned computer program, and the microprocessor operating in accordance with the computer program.

[0117] In addition, the program or the digital signal may be implemented by another independent computer system by recording it on the recording medium and transferring it, or by transferring the program or the digital signal via the network, etc. [Industrial Applicability]

[0118] The present disclosure can be used in a model generation device, a model generation method, and a program, and in particular can be used in a model generation device, a model generation method, and a program that generate a building model that takes into consideration maintaining the air quality around people who may be staying when designing buildings such as offices, commercial facilities, and homes. [Explanation of symbols]

[0119] 1. Model generation device 10 Input section 11 Arithmetic circuit 12. Memory 13 Output section 14 Storage section 15 Communications Department 16 Database 100, 150 Room floor plan 104a Program 104b Temporary Data 112 Acquisition Department 113 Arithmetic section 114 Result output section 300, 310, 350 concentration distribution map 410 Possible Area Map 411 Placeable area

Claims

1. A model generation device that generates a model of a building using information about objects of the building, including a structure constituting a building, a ventilation system arranged in the building, furniture arranged in the building, and a diffusion device arranged in the building for diffusing a sterilizing substance, A processor; A memory, The processor uses the memory to: Among the objects, human attribute information is acquired, which is information about a person associated with a human attribute object that is an object where a person may be staying and is temporarily placed in the building; and determining a concentration distribution of the sterilization substance by the diffusion device in at least one space of the building partitioned by the structure based on information on the object of the structure and location information indicating a location of the object of the structure within the building; creating an arrangement area indicating an area in which the human attribute object can be arranged within the space using the concentration distribution, predetermined air quality conditions, and the human attribute information; Using the created arrangement possible area, it is determined whether or not the position where the human attribute object is currently arranged is acceptable; If the location is allowed, include the person attribute object for the location in the model; If the position is not permitted, a required concentration, which is a concentration of the sterilizing substance required for the position to be permitted, is calculated based on the concentration distribution, the air quality condition, and the position, and output the required concentration. Model generation device.

2. The building model is included in BIM (Building Information Modeling) data. The model generating device according to claim 1 .

3. A model generation method for generating a model of a building using information about objects of the building, including a structure constituting the building, a ventilation system arranged in the building, furniture arranged in the building, and a diffusion device arranged in the building for diffusing a sterilizing substance, comprising: Among the objects, human attribute information is acquired, which is information about a person associated with a human attribute object that is an object where a person may be staying and is temporarily placed in the building; and determining a concentration distribution of the sterilization substance by the diffusion device in at least one space of the building partitioned by the structure based on information on the object of the structure and location information indicating a location of the object of the structure within the building; creating an arrangement area indicating an area in which the human attribute object can be arranged within the space using the concentration distribution, predetermined air quality conditions, and the human attribute information; Using the created arrangement possible area, it is determined whether or not the position where the human attribute object is currently arranged is acceptable; If the location is allowed, include the person attribute object for the location in the model; If the position is not permitted, a required concentration, which is a concentration of the sterilizing substance required for the position to be permitted, is calculated based on the concentration distribution, the air quality condition, and the position, and output the required concentration. Model generation method.

4. A program for causing a computer to execute a model generation method for generating a model of a building using information on objects of the building, including a structure constituting a building, a ventilation system arranged in the building, furniture arranged in the building, and a diffusion device arranged in the building for diffusing a sterilizing substance, the program comprising: Among the objects, human attribute information is acquired, which is information about a person associated with a human attribute object that is an object where a person may be staying and is temporarily placed in the building; and determining a concentration distribution of the sterilization substance by the diffusion device in at least one space of the building partitioned by the structure based on information on the object of the structure and location information indicating a location of the object of the structure within the building; creating an arrangement area indicating an area in which the human attribute object can be arranged within the space using the concentration distribution, predetermined air quality conditions, and the human attribute information; Using the created arrangement possible area, it is determined whether or not the position where the human attribute object is currently arranged is acceptable; If the location is allowed, include the person attribute object for the location in the model; If the position is not permitted, a required concentration, which is a concentration of the sterilizing substance required for the position to be permitted, is calculated based on the concentration distribution, the air quality condition, and the position, and output the required concentration. A program that makes a computer do something.

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