Control apparatus, air-conditioning simulation system, control method and control program

Abstract

To provide a control apparatus, an air-conditioning simulation system, a control method and a control program for controlling operation of an air-conditioning machine which is interlocked with ventilation.SOLUTION: A control apparatus 50 includes a modeling part 51 which models an indoor space by the use of a 3D shape, a position specification part 52 which specifies positions of an opening part of a modelled indoor space and an air-conditioning machine, a simulation part 53 which simulates such states of respective air flows in such a case that the opening part is opened. and in such a case that the opening part is opened, and in such a case that the opening part is opened and, further, the air-conditioning machine is operated, a comparison part 54 which compares a simulated result in such a case that an opening part is opened and a simulated result in such a case that the opening part is opened and, further, the air-conditioning machine is operated and an outputting part 55 which outputs a comparison result of the simulated result by means of the comparison part 54, and optimum operation conditions of the air-conditioning machine for performing ventilation of the indoor space based on a comparison result of the simulated result.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a control device, an air-conditioning simulation system, a control method, and a control program. [Background technology]

[0002] Due to the spread of the COVID-19 pandemic, there is an increasing need to check the concentration and flow of viruses floating in indoor spaces. However, methods for directly measuring viruses floating in indoor spaces are insufficiently accurate and expensive, making them difficult to apply to actual environments. In addition, ventilation of indoor spaces is recommended in order to reduce the number of viruses floating in indoor spaces. There is also a need to check the concentration and flow of viruses when ventilation is performed in indoor spaces. In addition, the use of an air conditioner in combination with ventilation is also being considered. Patent Document 1 discloses that when a window opening sensor installed on a window detects that a window is open, the air conditioner's airflow is set to a nighttime sleep mode with minimum airflow in order to reduce the load on the air conditioner. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2022-72818 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the invention of Patent Document 1 only addresses the issue of reducing the load on the air conditioner when it is used in conjunction with ventilation, and does not consider actively discharging airborne particles such as viruses in indoor spaces to the outside by the air conditioner in conjunction with ventilation.Furthermore, there is no consideration of predicting and visualizing the concentration and flow of viruses floating in indoor spaces by using an air conditioner in conjunction with ventilation.

[0005] The present disclosure has been made in consideration of the above circumstances, and aims to provide a control device, an air conditioning simulation system, a control method, and a control program that control the operation of an air conditioner that is linked to ventilation. [Means for solving the problem]

[0006] In order to solve the above problems, the control device, air-conditioning simulation system, control method, and control program disclosed herein employ the following means. The control device of the present disclosure includes a modeling unit that models an indoor space in a 3D shape, a position identification unit that identifies the positions of the openings and the air conditioner in the indoor space modeled by the modeling unit, a simulation unit that simulates the airflow states when the openings are open and when the air conditioner is operated with the openings open, a comparison unit that compares the simulation results when the openings are open with the simulation results when the air conditioner is operated with the openings open, and an output unit that outputs the comparison result of the simulation results by the comparison unit and the operating conditions of the air conditioner that are optimal for ventilating the indoor space based on the simulation result when the air conditioner is operated with the openings open.

[0007] The air conditioning simulation system of the present disclosure includes the aforementioned control device and an information terminal on which a 3D scanning app is installed.

[0008] The control method disclosed herein is executed by a computer and includes a modeling process for modeling an indoor space in a 3D shape, a position identification process for identifying the positions of an opening and an air conditioner in the indoor space modeled by the modeling process, a simulation process for simulating airflow states when the opening is open and when the air conditioner is operated with the opening open, a comparison process for comparing the simulation result when the opening is open with the simulation result when the air conditioner is operated with the opening open, and an output process for outputting the comparison result of the simulation results by the comparison process and the operating conditions of the air conditioner that are optimal for ventilating the indoor space based on the simulation result when the air conditioner is operated with the opening open.

[0009] The control program of the present disclosure causes a computer to execute the above-described control method. Effect of the Invention

[0010] According to the present disclosure, it is possible to notify a user of the most suitable mode of air conditioner usage for ventilation depending on each space. [Brief description of the drawings]

[0011] [Figure 1] FIG. 2 is a diagram illustrating an example of functions of a control device and an information terminal related to an air conditioner in some embodiments of the present disclosure. [Diagram 2] FIG. 2 is a diagram illustrating an example of a hardware configuration of a control device in some embodiments of the present disclosure. [Diagram 3] FIG. 4 illustrates a control flow of a control device in some embodiments of the present disclosure. [Figure 4] FIG. 11 is a diagram showing an example of 3D data of an indoor space acquired from an information terminal according to some embodiments of the present disclosure. [Diagram 5] FIG. 2 illustrates coordinates of point cloud data in some embodiments of the present disclosure. [Figure 6] FIG. 1 is a diagram showing a conventional method for creating a 3D model from a scanned image. [Figure 7] FIG. 1 illustrates an example of a 3D model in some embodiments of the present disclosure. [Figure 8] FIG. 2 illustrates a modeled indoor space in some embodiments of the present disclosure. [Figure 9] 13A-13C show simulated results when openings are opened in some embodiments of the present disclosure. [Figure 10] FIG. 13 is a diagram showing a simulation result of operating an air conditioner with an opening open in some embodiments of the present disclosure. [Figure 11] FIG. 13 illustrates locations of additional equipment in some embodiments of the present disclosure. [Figure 12] 13A-13C illustrate installation of additional equipment and simulated results in some embodiments of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of a control device, an air-conditioning simulation system, a control method, and a control program according to the present disclosure will be described with reference to the drawings. FIG. 1 is a diagram showing an example of functions of a control device and an information terminal related to an air conditioner in some embodiments of the present disclosure. 1, the air-conditioning simulation system 1 includes a control device 50 and an information terminal 100. The control device 50, which is involved in the control of the air conditioner 10 described below, exchanges information with the information terminal 100.

[0013] The information terminal 100 is, for example, a smartphone, a PDA (Personal Digital Assistant), a tablet, or the like, and includes a camera 110, a 3D scan application 120, and an air conditioning application 130.

[0014] The camera 110 of the information terminal 100 takes pictures, particularly of an indoor space in some embodiments of the present disclosure.

[0015] The 3D scan application 120 creates and acquires 3D data for use in simulations from images of an indoor space captured by the camera 110.

[0016] The air conditioning application 130 uploads the 3D data of the indoor space acquired by the 3D scan application 120 to the control device 50. The air conditioning application 130 may instruct the user to acquire 3D data of the indoor space using the 3D scan application 120, and the user may photograph the indoor space with the camera 110 via the 3D scan application 120, and acquire the 3D data from the photographed data.

[0017] The control device 50 includes a modeling unit 51, a position specifying unit 52, a simulation unit 53, a comparison unit 54, and an output unit 55.

[0018] The modeling unit 51 of the control device 50 acquires 3D data of the indoor space from the air conditioning application 130 of the information terminal 100, and models the indoor space in a 3D shape. By modeling the indoor space in a 3D shape, the size and shape of the indoor space can be obtained.

[0019] The position specifying unit 52 specifies the openings (windows, doors, etc.) of the indoor space modeled in 3D shape and the positions of the air conditioner 10. Furthermore, the position specifying unit 52 may specify the shapes and positions of furniture and fixtures installed in the indoor space.

[0020] The modeling unit 51 and the position specifying unit 52 perform pre-processing of input data necessary for a simulation unit 53 (described later) to perform a simulation.

[0021] The simulation unit 53 simulates the airflow states when the opening is opened and when the air conditioner 10 is operated with the opening open.

[0022] The comparison unit 54 compares the simulation result when the opening is opened with the simulation result when the air conditioner 10 is operated with the opening open.

[0023] The output unit 55 outputs the comparison result of the simulation results by the comparison unit 54 and the optimum operating conditions of the air conditioner 10 for ventilating the indoor space based on the simulation result of operating the air conditioner 10 with the opening open. The output unit 55 may also visualize and output the simulation result of the airflow state.

[0024] FIG. 2 is a diagram illustrating an example of a hardware configuration of a control device according to some embodiments of the present disclosure. 2, the control device (Controller) 50 is a computer system, and includes, for example, a CPU (Central Processing Unit: Processor) 1100, a secondary storage device (ROM, Secondary storage: Memory) 1200, a main storage device (RAM, Main Memory) 1300, a hard disk drive (HDD) 1400 as a large-capacity storage device, and a communication unit 1500 for connecting to a network or the like. Note that a solid-state drive (SSD) may be used as the large-capacity storage device. These units are connected via a bus 1800.

[0025] The CPU 1100 controls the entire control device 50 by, for example, an OS (Operating System) stored in a secondary storage device 1200 connected via a bus 1800, and executes various processes by executing various programs stored in the secondary storage device 1200. One or more CPUs 1100 may be provided, and may cooperate with each other to realize processes.

[0026] The main memory device 1300 is composed of writable memory such as cache memory or RAM (Random Access Memory), and is used as a working area for reading out programs executed by the CPU 1100 and writing data processed by the programs.

[0027] The secondary storage device 1200 is a non-transitory computer readable storage medium. The secondary storage device 1200 is, for example, a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, or the like. Examples of the secondary storage device 1200 include a ROM (Read Only Memory), a HDD (Hard Disk Drive), and a SSD (Solid State Drive) flash memory. The secondary storage device 1200 stores, for example, an OS for controlling the entire information processing device such as Windows (registered trademark), iOS (registered trademark), Android (registered trademark), a BIOS (Basic Input / Output System), various device drivers for operating peripheral devices as hardware, various application software, and various data and files. In addition, the secondary storage device 1200 stores programs for implementing various processes and various data required for implementing various processes. A plurality of secondary storage devices 1200 may be provided, and the above-mentioned programs and data may be divided and stored in each secondary storage device 1200.

[0028] The control device 50 may also include an input unit such as a keyboard and a mouse, and a display unit such as a liquid crystal display device that displays data. The control device 50 may also include a notification unit such as a speaker that includes a display unit and outputs a lamp, sound, and in particular an alarm sound.

[0029] A series of processes for realizing the functions of the control device 50 is stored in the secondary storage device 1200 or the like in the form of a program, and the CPU (processor) 1100 reads this program into the main storage device 1300 and executes information processing and arithmetic processing to realize various functions. The program may be pre-installed in the secondary storage device 1200, provided in a state stored in another non-transitory computer-readable storage medium, or distributed via wired or wireless communication means. Examples of non-transitory computer-readable storage media include magnetic disks, magneto-optical disks, CD-ROMs, DVD-ROMs, and semiconductor memories.

[0030] FIG. 3 is a diagram illustrating a control flow of a control device in some embodiments of the present disclosure. In step S101, a user photographs an indoor space using the camera 110 of the information terminal 100. The 3D scan application 120 creates and acquires 3D data for use in a simulation from the image of the indoor space photographed by the camera 110. The air conditioning application 130 uploads the 3D data of the indoor space acquired by the 3D scan application 120 to the control device 50.

[0031] While moving the information terminal 100, the user photographs and scans the walls, floors, ceilings, doors, windows, and furniture in the indoor space using the 3D scan application 120. The user may specify the positions and shapes of the furniture and fixtures installed in the indoor space on the scanned 3D data. In step S101, the control device 50 can obtain the 3D data and point cloud data of the indoor space.

[0032] FIG. 4 is a diagram illustrating an example of 3D data of an indoor space acquired from an information terminal according to some embodiments of the present disclosure. 4, shape data of an indoor space can be obtained from an image captured by the camera 110 of the information terminal 100. The data format of the shape data is, for example, GLB, STL, or the like.

[0033] In step S102 of FIG. 3, the modeling unit 51 of the control device 50 acquires 3D data of the indoor space from the air conditioning application 130 of the information terminal 100, and models the indoor space in a 3D shape.

[0034] 4, the modeling unit 51 abstracts the 3D data. Specifically, the modeling unit 51 converts the 3D data into point cloud data and assigns virtual coordinates of X, Y, and Z to all points.

[0035] FIG. 5 is a diagram illustrating coordinates of point cloud data in some embodiments of the present disclosure. As shown in Figure 5, each point of the point cloud data is given temporary X, Y, and Z coordinates in the XYZ space, and the ends closest to a straight line that can be read from the temporary coordinates are taken as the sides of the indoor space (12 sides, for example, each side shown by the dashed lines in Figure 5), and the point cloud data is rotated so that it is parallel to the X, Y, and Z axes. After rotation, all points of the point cloud data are given new X, Y, and Z coordinates.

[0036] The positions of the corners of the indoor space (eight points, for example, the points whose coordinates are displayed in FIG. 5) are predicted from the maximum and minimum values ​​of the X, Y, and Z coordinates of all points. Corrections are made so that the lines connecting the corners of the indoor space are all parallel and at right angles, and rectangular parallelepiped data that resembles the shape of the indoor space is created. In this way, the modeling unit 51 obtains the size and shape of the indoor space. The modeling unit 51 may further collect the doors, windows, furniture, fixtures, etc. of the indoor space as point cloud data converted from 3D data based on information on the doors, windows, furniture, fixtures, etc. of the indoor space input by the user.

[0037] FIG. 6 is a diagram showing a conventional method for generating a 3D model from a scanned image. As shown in Figure 6, in a conventional example of 3D modeling, a 3D scanned image is first converted into point cloud data. Unnecessary noise is manually removed from the point cloud data, and the data is converted into mesh data. Next, the mesh data is smoothed and missing parts are filled, and a model that can be used for CAE (simulation) is finally created.

[0038] On the other hand, in this embodiment, by performing abstraction to approximate the internal shape of the indoor space to a rectangular parallelepiped from the point cloud data as described above, it is possible to omit the manual processing that was performed in the conventional example.

[0039] FIG. 7 is a diagram illustrating an example of a 3D model in some embodiments of the present disclosure. The 3D data of the indoor space in Fig. 4 is converted into point cloud data, and the above-mentioned abstraction is performed to create a 3D model of the indoor space in Fig. 7, shown by solid and dashed lines. The solid lines in Fig. 7 indicate the sides and corners of the indoor space, as well as the doors and windows. The dashed lines in Fig. 7 indicate the air conditioner 10 and furniture and fixtures installed in the indoor space. In this way, the 3D model is performed to obtain the size and shape of the indoor space.

[0040] Next, in step S103 of Fig. 3, the control device 50 displays the modeled indoor space on the information terminal 100 and allows the user to specify the position of the air conditioner 10. The position identification unit 52 of the control device 50 identifies the openings (windows, doors, etc.) of the indoor space modeled in 3D shape and the position of the air conditioner 10. The control device 50 also allows the user to input the manufacturer and model number of the air conditioner 10. Based on the manufacturer and model number of the air conditioner 10, the control device 50 can obtain the size (capacity, i.e., rated air volume) and the size of the air conditioner 10.

[0041] FIG. 8 is a diagram illustrating a modeled indoor space in accordance with some embodiments of the present disclosure. A modeled indoor space as shown in FIG. 8 is displayed in the air conditioning application 130 of the user's information terminal 100. The user specifies the position of the air conditioner 10 in the modeled indoor space. In the air conditioning application 130, the user may place an icon representing the air conditioner 10 in the modeled indoor space. The user also inputs the specifications of the air conditioner 10 (manufacturer, model number, etc.) for the specified or placed air conditioner 10.

[0042] 3, the simulation unit 53 of the control device 50 simulates the state of airflow in the 3D modeled indoor space. The simulation unit 53 simulates the state of airflow when the opening in the indoor space is opened, and the state of airflow when the air conditioner 10 is operated with the opening in the indoor space opened.

[0043] FIG. 9 is a diagram showing a simulation result when the opening is opened in some embodiments of the present disclosure. As shown in Fig. 9, a simulation is performed on the state of airflow when openings (two windows in this embodiment) are opened in a 3D modeled indoor space. The state of airflow (air flow) is displayed as a video. In this case, the air conditioner 10 installed in the indoor space is assumed to be stopped.

[0044] When there are two or more openings as in this embodiment, the simulation unit 53 simulates at least one as the airflow inflow side and at least one as the airflow outflow side. In this embodiment, the simulation is performed with the window on the right side of the figure as the airflow inflow side and the window on the left side of the figure as the airflow outflow side. It can be obtained from the simulation result that the airflow that flows in from the window on the right side of the figure flows from the room on the right side of the figure through the opening of the door connecting the rooms to the room on the left side of the figure, and flows out from the window on the left side of the figure. The arrows shown in the figure indicate the direction and speed of the airflow. The longer the arrow, the faster the airflow.

[0045] Furthermore, the simulation unit 53 performs a simulation of the space where air may stagnate and the degree of stagnation. The simulation result is output as a video of the change in particle concentration distribution. The space where air may stagnate is a space where particle stagnation may occur. Each of the locations indicated by the shaded areas in FIG. 9 is a space where air, shown as a particle concentration distribution, may stagnate. Furthermore, darker shaded areas of the shaded area (concentration distribution) indicate a greater possibility of air stagnation than lighter shaded areas. Air stagnation indicates that pollen, viruses, dust, or allergens in the air are stagnate. In this embodiment, the user may be able to set the location of a source of viruses, etc. (e.g., B in FIG. 9). In this embodiment, the user may select a type of air pollutant, such as pollen, viruses, or PM2.5, and the floating behavior of the selected substance may be displayed. Although the floating behavior of air pollutants differs depending on the type, each type can be displayed independently according to this embodiment.

[0046] FIG. 10 is a diagram showing a simulation result when an air conditioner is operated with the opening open in some embodiments of the present disclosure. 10, in a 3D modeled indoor space, a simulation is performed of the airflow state when the air conditioner 10 is operated with the openings (two windows in this embodiment) open. In this embodiment, it is assumed that the air conditioner 10 installed in the indoor space is operating.

[0047] The simulation unit 53 simulates the airflow from the openings as well as the conditioned airflow of the air conditioner 10. In Fig. 10, the thick arrows indicate the airflow related to the openings, and the solid arrows indicate the airflow related to the air conditioner 10. For the air conditioner 10, the user may set the conditions of the operation settings (cooling, heating, dehumidification, ventilation, etc.), or the control device 50 may set each operation setting and obtain the respective simulation results.

[0048] In Fig. 10 as well, the simulation unit 53 performs a simulation of the space in which air may stagnate and the extent to which it may stagnate. The space in which air may stagnate is indicated by a shaded area. In this embodiment, the user may be able to set the location of a source of a virus or the like (e.g., B in Fig. 10). In this embodiment, the user may select the type of air pollutant, such as pollen, virus, PM2.5, etc., and the floating behavior of the selected substance may be displayed.

[0049] The simulation unit 53 performs a simulation of the operating conditions of the air conditioner 10 such that, when the air conditioner 10 is operated with the openings open, air stagnation and unnecessary diffusion of air pollutants such as viruses are suppressed and air pollutants are actively discharged to the outside. The operating conditions of the air conditioner 10 are set to be conditions that maximize the number of ventilation cycles in the indoor space, suppress air stagnation and unnecessary diffusion of air pollutants such as viruses, and reduce the heating and cooling load of the air conditioner 10. Furthermore, the simulation unit 53 may present an appropriate duration for opening the openings during ventilation based on the simulation results.

[0050] Next, in step S105 of FIG. 3, the comparison unit 54 compares the simulation result when the opening is opened with the simulation result when the air conditioner 10 is operated with the opening open. The comparison unit 54 presents the time required for the particle / mist concentration simulating the air pollutant in the indoor space to reach a predetermined concentration when the opening is opened and the time required for the air conditioner 10 to be operated with the opening open, so that the user can compare them. Here, the predetermined concentration is, for example, a concentration that is 1 / 100 of the initial state. The initial state of the particles / mist is assumed to be uniformly suspended in the indoor space. The comparison unit 54 may present the simulation result in which the time required for the particle / mist concentration to reach the predetermined concentration is shortest among the simulation results performed by the simulation unit 53, and the operating conditions of the air conditioner 10 in that case.

[0051] The output unit 55 outputs the comparison result of the simulation results by the comparison unit 54 and the optimal operating conditions of the air conditioner 10 for ventilating the indoor space based on the simulation result when the air conditioner 10 is operated with the opening open.

[0052] Next, in step S106 of Fig. 3, the user checks the presented comparison result of the simulation results and the optimal operating conditions of the air conditioner 10 for ventilating the indoor space based on the simulation results, and selects whether or not to adopt them. If adoption is selected, the user decides to adopt the presented operating conditions, and the corresponding operating conditions are set in the air conditioner 10. The operating conditions of the air conditioner 10 may be set via a remote control for the air conditioner 10. The user may also set the adopted operating conditions in the remote control.

[0053] On the other hand, if it is selected not to adopt, the process proceeds to step S107. In step S107, since the airflow state through ventilation cannot be improved by the already installed air conditioner 10 alone, it is suggested to install other equipment. Examples of other equipment include an air purifier, another air conditioner, an air curtain, etc.

[0054] FIG. 11 is a diagram showing locations of additional equipment in some embodiments of the present disclosure. Only by opening the opening and operating the air conditioner 10, a space where air may stagnate may occur, as shown by the shaded area in FIG. 10. The control device 50 proposes the installation of other equipment to suppress the space where air may stagnate. In this case, the simulation unit 53 may perform a simulation of the state of the airflow when the newly installed other equipment is operating, and present the result to the user. The simulation unit 53 presents the placement of other equipment that is most effective based on the simulation result. For example, the simulation unit 53 presents the air purifier 11 and the air curtain 12 as candidates, and presents the installation of the air purifier 11 (11a) in the room on the left side of the figure, and the installation of the air purifier 11 (11b) and the air curtain 12 in the room on the right side of the figure.

[0055] 3, the control device 50 lists other necessary devices. The list of the other devices listed is displayed in the air conditioning application 130 of the information terminal 100, and the user selects a position presented by the control device 50 in the 3D modeled indoor space, and selects other devices to be installed at the position presented by the control device 50 from the list.

[0056] When the installation position and other devices to be installed are selected in step S108, the process returns to step S104, and the simulation of the airflow state is performed again.

[0057] FIG. 12 is a diagram illustrating the installation and simulated results of additional equipment in some embodiments of the present disclosure. In the present embodiment, it is assumed that the position of the installation location presented in the indoor space, and the air purifier 11 and the air curtain 12 to be installed at that position are selected. In the case of Fig. 12, compared to the case of Fig. 10 in which the air purifier 11 and the air curtain 12 are not installed, it is possible to show the user that the air flow spreads throughout the entire room and that the space where air may stagnate, shown by the shaded portion, is suppressed.

[0058] <Additional Notes> The control device, the air-conditioning simulation system, the control method, and the control program described in the above-described embodiments can be understood, for example, as follows.

[0059] A control device (50) of a first aspect of the present disclosure includes a modeling unit (51) that models an indoor space in a 3D shape, a position identification unit (52) that identifies the positions of an opening and an air conditioner (10) in the indoor space modeled by the modeling unit, a simulation unit (53) that simulates airflow states when the opening is opened and when the air conditioner is operated with the opening open, a comparison unit (54) that compares a simulation result when the opening is opened with a simulation result when the air conditioner is operated with the opening open, and an output unit (55) that outputs a comparison result of the simulation results by the comparison unit and optimal operating conditions of the air conditioner for ventilating the indoor space based on the simulation result when the air conditioner is operated with the opening open.

[0060] The system simulates airflow conditions based on the positions of openings and air conditioners in the 3D shape of the space, and outputs the optimal operating conditions for the air conditioner, so it can notify the user of the most suitable way to use the air conditioner for ventilation. Airflow conditions change depending on the shape of the space and the position of the air conditioner, but based on this, it can suggest the best way to use the air conditioner for each space. Users can ventilate efficiently.

[0061] In the control device of the first aspect of the second aspect of the present disclosure, the output unit may visualize and output the simulation result of the airflow state.

[0062] The user can actually visually confirm the airflow conditions when an opening in an indoor space is opened, and when an air conditioner is operated with the opening open, as simulation results.

[0063] In the control device of the third aspect of the present disclosure, in the first or second aspect, the simulation unit may be configured to simulate, when there are two or more openings, at least one as the inflow side of the airflow and at least one as the outflow side of the airflow.

[0064] When there are two or more openings, the simulation becomes complicated if it is assumed that air flows in and out of all of them, but the simulation can be simplified by deciding on either inflow or outflow. Also, the simulation can be performed according to the wind direction of the outside air.

[0065] A control device of a fourth aspect of the present disclosure, in any of the first to third aspects, may be configured such that the simulation unit simulates a plurality of airflow conditions for different positions of the air conditioner, the comparison unit compares the simulation results of the plurality of airflow conditions, and the output unit outputs an installation position and operating conditions of the air conditioner that are optimal for ventilating the indoor space based on a comparison result of the simulation results of the plurality of airflow conditions.

[0066] Before installing an air conditioner, the optimum installation location for the air conditioner for ventilation can be known, and the simulation results can be utilized in spatial design.

[0067] In the control device of a fifth aspect of the present disclosure, in any one of the first to fourth aspects, the modeling unit may model the indoor space in a 3D shape based on data of the indoor space acquired by a user using a 3D scan application (120) installed on an information terminal (100).

[0068] By using a 3D scanning app on an information terminal, 3D modeling can be easily performed. In addition, by using a known app and utilizing the data, the cost of the system can be reduced.

[0069] A control device according to a sixth aspect of the present disclosure is, in any one of the first to fifth aspects, such that the output unit outputs the simulation result of the airflow state as a video showing a change in particle concentration distribution.

[0070] The simulation results are output as changes in particle concentration distribution, making it possible to actually see with your own eyes the dispersion of pollen, viruses, dust, allergens, and other substances in the air.

[0071] A seventh aspect of the control device of the present disclosure may be such that, in the sixth aspect, the output unit indicates a space in which particles may be stagnating based on the change in concentration distribution of the simulated result of the airflow state.

[0072] Users can actually see with their own eyes the status of pollen, viruses, dust, allergens, and other particles remaining in the air.

[0073] In the control device of an eighth aspect of the present disclosure, in any one of the first to seventh aspects, the position identifying unit may identify a position of an air purifier (11).

[0074] From the simulation results, if the situation can be improved by installing an air purifier, a suggestion can be made to the user.

[0075] An air-conditioning simulation system (1) of a ninth aspect of the present disclosure includes a control device of any one of the first to eighth aspects, and an information terminal having a 3D scan app installed.

[0076] The control method of the tenth aspect of the present disclosure is executed by a computer, and includes a modeling process for modeling an indoor space in a 3D shape, a position identification process for identifying the positions of an opening and an air conditioner in the indoor space modeled by the modeling unit, a simulation process for simulating airflow states when the opening is opened and when the air conditioner is operated with the opening open, a comparison process for comparing the simulation result when the opening is opened with the simulation result when the air conditioner is operated with the opening open, and an output process for outputting the comparison result of the simulation results by the comparison unit and the operating conditions of the air conditioner that are optimal for ventilating the indoor space based on the simulation result when the air conditioner is operated with the opening open.

[0077] A control program according to an eleventh aspect of the present disclosure causes a computer to execute the control method according to the eleventh aspect.

[0078] Although the present disclosure has been described using the embodiments, the technical scope of the present disclosure is not limited to the scope described in the above embodiments. For example, in the embodiment of the present disclosure, the air conditioner 10 is already installed in the indoor space, but if the air conditioner 10 is not installed in the indoor space, the air conditioner 10 may be installed in several different positions and the airflow state may be simulated for each position. In this case, the comparison unit compares the simulation results of the multiple airflow states, and the output unit outputs the installation position and operating conditions of the air conditioner that are optimal for ventilating the indoor space based on the comparison result of the simulation results of the multiple airflow states. [Explanation of symbols]

[0079] 1. Air conditioning simulation system 10 Air conditioner 11, 11a, 11b Air purifier 12 Air Curtain 50 Control device 51 Modeling Department 52 Location identification part 53 Simulation Department 54 Comparison section 55 Output section 100 Information terminal 110 Camera 120 3D Scanning Apps 130 Air Conditioning App 1100 CPU 1200 Secondary storage 1300 Main storage 1500 Communications Department 1800 Bus

Claims

1. a modeling unit that models an interior space in 3D; a position identification unit that identifies positions of an opening and an air conditioner in the indoor space modeled by the modeling unit; a simulation unit that simulates airflow states when the opening is opened and when the air conditioner is operated with the opening opened; a comparison unit that compares a simulation result in a case where the opening is opened with a simulation result in a case where the air conditioner is operated with the opening opened; an output unit that outputs a comparison result of the simulation results by the comparison unit and an optimal operating condition of the air conditioner for ventilating the indoor space based on the simulation result in the case where the air conditioner is operated with the opening opened; A control device comprising:

2. The control device according to claim 1 , wherein the output unit visualizes and outputs the simulation result of the airflow state.

3. The control device according to claim 1 , wherein when there are two or more openings, the simulation unit simulates at least one as an inflow side of the airflow and at least one as an outflow side of the airflow.

4. The simulation unit simulates a plurality of airflow states for each different position of the air conditioner, The comparison unit compares the simulation results of a plurality of the airflow states, The control device according to claim 1 , wherein the output unit outputs an optimum installation position and operating conditions of the air conditioner for ventilating the indoor space based on a comparison result of the simulation results of a plurality of the airflow states.

5. The control device according to claim 1 , wherein the modeling unit models the indoor space in a 3D shape based on data of the indoor space acquired by a user using a 3D scan app installed on an information terminal.

6. The control device according to claim 1 , wherein the output unit outputs the simulation result of the state of the airflow as a moving image representing a change in particle concentration distribution.

7. The control device according to claim 6 , wherein the output unit indicates a space in which particles are stagnating based on the change in concentration distribution in the simulation result of the airflow state.

8. The control device according to claim 1 , wherein the position identifying unit identifies a position of the air purifier.

9. The control device according to claim 1 ; An information terminal with a 3D scanning app installed, An air conditioning simulation system equipped with:

10. A modeling process for modeling the interior space in 3D shape; a position identification step of identifying positions of an opening and an air conditioner in the indoor space modeled by the modeling step; A simulating step of simulating airflow states when the opening is opened and when the air conditioner is operated with the opening opened; A comparison step of comparing a simulation result in a case where the opening is opened with a simulation result in a case where the air conditioner is operated with the opening opened; an output step of outputting a comparison result of the simulation results obtained by the comparison step and optimal operating conditions of the air conditioner for ventilating the indoor space based on the simulation result in the case where the air conditioner is operated with the opening opened; A computer-implemented control method comprising:

11. A control program for causing a computer to execute the control method according to claim 10.

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