Thermal fluid analysis result visualization device and portable information terminal

Abstract

A portable information terminal 300, which is a thermal fluid analysis result visualization device for notifying of time-series change of an environment, comprises: a rectangular flat plate-like housing; a rectangular display unit 340 provided on one surface of the housing; and an imaging unit 350 having an imaging opening provided on the back side of the one surface. The display unit 340 dynamically displays a state, in which the thermal fluid analysis result changes in a time-series manner, when superimposing and displaying, as augmented reality (AR), an image of a space captured by the imaging unit 350 and the thermal fluid analysis result for which the space is set as an analysis space.

Description

Visualization device for thermal fluid analysis results, mobile information terminal

[0001] The present disclosure relates to a display technology, and more particularly to a visualization device and a mobile information terminal for displaying the results of a thermal fluid analysis.

[0002] A remote control terminal is used to remotely operate an air conditioner (air conditioner). To improve the comfort of the air conditioner, it is necessary to notify the user of changes in airflow distribution in response to changes in the indoor layout while the air conditioner is operating. To achieve this, a three-dimensional airflow distribution derived by a simulation based on computational fluid dynamics is displayed on the remote control terminal (see, for example, Patent Document 1).

[0003] Japanese Patent Application Laid-Open No. 2022-179638

[0004] The environment caused by the airflow changes over time. Therefore, it is necessary to inform the user of the time-series changes in the environment. On the other hand, it is desirable to improve the user's operability when displaying the results of such thermal fluid analysis.

[0005] In view of the above, an object of the present disclosure is to provide a technology for informing a user of time-series changes in an environment (first object), and a technology for improving user operability when displaying results of thermal fluid analysis (second object).

[0006] In order to solve the first problem, a visualization device for thermal-fluid analysis results according to one aspect of the present disclosure includes a rectangular, flat housing, a rectangular display unit provided on one side of the housing, and an imaging unit with an imaging port on the rear side of the one side. The display unit dynamically displays the state in which the thermal-fluid analysis results change over time when an image of a space captured by the imaging unit and the thermal-fluid analysis results for which the space is set as an analysis space are superimposed as augmented reality (AR).

[0007] On the other hand, to solve the second problem, a portable information terminal according to one aspect of the present disclosure includes a rectangular, flat housing having a grip portion on one side thereof, a rectangular display portion extending over the entire surface of one side of the housing, an imaging portion having a shooting port on the rear side of the one side, and an operation portion for operating an image displayed on the display portion. The display portion displays an image of a space captured by the imaging portion and a result of a thermo-fluid analysis in which the space is set as an analysis space, superimposed as an augmented reality (AR) image, and displays an operation portion superimposed on a composite image in which the image of the space and the result of the thermo-fluid analysis are superimposed. The operation portion superimposed on the composite image is positioned so that it can be operated with the thumb or any of the fingers when the grip portion is held in both or one hand of a user.

[0008] Any combination of the above components, or conversions between the expression methods, devices, systems, computer programs, or recording media on which computer programs are recorded of the present disclosure, are also valid aspects of the present disclosure.

[0009] According to the present disclosure, it is possible to notify the user of changes in the environment over time, and it is also possible to improve the operability of the user when displaying the results of thermal fluid analysis.

[0010] FIG. 1 is a diagram illustrating the overall configuration of a visualization system according to this embodiment. FIGS. 2(a)-(g) are diagrams illustrating an outline of the operation of the visualization system of FIG. 1. FIG. 3 is a diagram illustrating an example of a first display screen according to this embodiment. FIG. 4 is a diagram illustrating an example of a second display screen according to this embodiment. FIGS. 5(a)-(b) are diagrams illustrating an example of a third display screen and a fourth display screen according to this embodiment. FIG. 6 is a diagram illustrating an example of a fifth display screen according to this embodiment. FIG. 7 is a diagram illustrating an example of a sixth display screen according to this embodiment. FIGS. 8(a)-(b) are diagrams illustrating an example of an operation screen for the conversion unit of FIG. 1. FIGS. 9(a)-(b) are diagrams illustrating the appearance of the mobile information terminal of FIG. 1. FIGS. 10(a)-(e) are diagrams illustrating an outline of the operation of the mobile information terminal of FIG. 1. FIGS. 11(a)-(c) are diagrams illustrating screens displayed on the display unit of FIG. 1. FIGS. 12(a)-(d) are diagrams illustrating screens displayed on the display unit when the direction in which the mobile information terminal of FIG. 1 is held is changed. Figures 13(a)-(h) are diagrams showing screens displayed on the display unit in Figure 1. Figure 14 is a diagram showing screens displayed on the display unit in Figure 1. Figures 15(a)-(b) are diagrams showing screens displayed on the display unit in Figure 1. Figures 16(a)-(c) are diagrams showing screens displayed on the display unit in Figure 1.

[0011] Hereinafter, embodiments for carrying out the present disclosure will be described with reference to the accompanying drawings. Note that the following embodiments are examples that embody the present disclosure and do not limit the technical scope of the present disclosure. Furthermore, the same components are denoted by the same reference numerals throughout the drawings, and their explanations are omitted. Furthermore, to avoid duplication, explanations for each of the details of each part that is not directly related to the present disclosure are omitted for each drawing.

[0012] Furthermore, each figure is a schematic diagram and is not necessarily an exact illustration. Therefore, for example, the scales and the like do not necessarily match between the figures. Furthermore, in each figure, substantially identical components are assigned the same reference numerals, and redundant explanations are omitted or simplified. Below, with reference to the drawings, an embodiment of the present disclosure will be described in the following order: (1) overall configuration, (2) settings for thermal-fluid analysis, (3) thermal-fluid analysis, (4) conversion of thermal-fluid analysis results, and (5) display on a mobile information terminal.

[0013] (1) Overall Configuration FIG. 1 is an overall configuration diagram of a visualization system 1000. The visualization system 1000 performs a thermal fluid analysis calculation of a diffusive material having a sterilization effect in an analysis space, which is a space to be subjected to thermal fluid analysis, based on analysis condition information, and displays the analysis results. The visualization system 1000 includes an input terminal 100, a processing device 120, a server 200, and a mobile information terminal 300. The input terminal 100 includes a setting unit 110, which includes an input unit 112 and an output unit 114. The processing device 120 includes an analysis unit 130 and a conversion unit 150. The analysis unit 130 includes an acquisition unit 132, a processing unit 134, a calculation unit 136, a determination unit 138, a storage unit 140, and an analysis result output unit 142, and the conversion unit 150 includes an analysis result acquisition unit 152, a processing unit 154, and an output unit 156. The server 200 includes a database 210. The portable information terminal 300 includes a communication unit 310 , a control unit 320 , an operation unit 330 , a display unit 340 , an imaging unit 350 , and a storage unit 360 .

[0014] The input terminal 100 is a PC (Personal Computer) or a tablet terminal. The input unit 112 is a user interface that accepts operations from a user. The user interface is, for example, a touch panel or physical operation buttons. The input unit 112 creates analysis target data based on the operations from the user. The analysis target data includes information on the analysis space that is the target of the thermal fluid analysis.

[0015] 2(a)-(g) show an overview of the operation of the visualization system 1000. FIG. 2(a) shows an analysis space 10 included in the analysis target data created by the setting unit 110. The analysis space 10 is a virtual space modeled after an actual space (hereinafter referred to as "real space"), and is the space on which thermal fluid analysis is performed. The real space may be, for example, a living space in a typical home or an office space, and the living space or office space may include one or more rooms. Furthermore, the analysis space 10 also contains equipment such as air conditioners and desks, just like the real space. The input unit 112 accepts information about the equipment, such as the model, size, and operating conditions, as equipment information. The equipment information is also included in the analysis target data.

[0016] Fig. 2(b) shows a marker 20 set in one of the rooms in the analysis space 10 shown in Fig. 2(a). The input unit 112 places the marker 20 in the analysis space 10 in the analysis target data through a user operation and specifies the coordinates of the marker 20. The marker 20 will be described later. Figs. 2(c)-(g) will be described later, returning to Fig. 1. The input unit 112 is connected to an acquisition unit 132 of the analysis unit 130 (described later) via wireless or wired communication so as to be able to communicate with each other.

[0017] The output unit 114 outputs the coordinates of the marker 20 and the device information received by the input unit 112 to the analysis result acquisition unit 152 of the conversion unit 150 .

[0018] The processing device 120 is configured by a computer system having a processor and memory. The analysis unit 130 of the processing device 120 performs thermal fluid analysis calculations by having the processor execute a program stored in the memory based on the analysis target data. The acquisition unit 132 of the analysis unit 130 acquires analysis target data for the analysis space 10 that is the target of the thermal fluid analysis from the input unit 112. The acquisition unit 132 outputs the analysis target data to the processing unit 134.

[0019] The processing unit 134 causes the calculation unit 136 to perform a thermal fluid analysis calculation based on the analysis target data to simulate the situation in which air is blown from an air conditioner arranged in the analysis space 10. The calculation unit 136 performs, for example, an analysis based on computational fluid dynamics (CFD) (hereinafter referred to as CFD analysis). The CFD analysis performs a thermal fluid analysis calculation on the analysis target data using a model such as Reynolds-Averaged Navier-Stokes equations (RANS), Direct Numerical Simulation (DNS), Large Eddy Simulation (LES), or Detached Eddy Simulation (DES).

[0020] For example, the calculation unit 136 performs CFD analysis based on the type of diffusive substance, the amount of diffusive substance generated, the wind direction and speed of the airflow, the self-decomposition coefficient of the diffusive substance, the diffusion coefficient of the diffusive substance, the adsorption and desorption coefficient of the diffusive substance, etc., to calculate the airflow flowing out from the air conditioner and the concentration of the diffusive substance contained in the airflow for each position in the analysis space 10. Specifically, as shown in Fig. 2(c), the calculation unit 136 generates a three-dimensional distribution of the airflow and the concentration of the diffusive substance for each position in the analysis space 10. The self-decomposition coefficient of the diffusive substance, the diffusion coefficient of the diffusive substance, and the adsorption and desorption coefficient of the diffusive substance are well-known techniques, and therefore will not be described here.

[0021] The diffusing material is a material that has a sterilizing effect of eliminating bacteria. Here, sterilization refers not only to the removal of bacteria or germs, but also to the removal of viruses. In other words, bacteria includes not only bacteria but also viruses. Examples of bacteria include, but are not limited to, Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli. An example of the diffusing material is hypochlorous acid (HClO). Another example of the diffusing material may be a material containing OH radicals generated by applying a high voltage to moisture in the air (e.g., nanoe (registered trademark)).

[0022] The determination unit 138 analyzes the thermo-fluid analysis results obtained by the calculation unit 136 and identifies the presence or absence of a distribution region where the analyzed physical property value results are outside a reference range (4 ppb to 10 ppb in the case of a diffusive material concentration). The memory unit 140 stores various information. The memory unit 140 stores algorithms for executing the processing of the processing unit 134 of the present disclosure. The memory unit 140 stores past thermo-fluid analysis results and information on each component used in the analytical calculations in the calculation unit 136 (model, shape, default conditions, diffusive material information, etc.). The analysis result output unit 142 outputs the thermo-fluid analysis results from the processing unit 134 to the conversion unit 150.

[0023] The analysis result acquisition unit 152 of the conversion unit 150 receives the thermal fluid analysis results from the analysis result output unit 142 and outputs the thermal fluid analysis results to the processing unit 154. The analysis result acquisition unit 152 also receives the coordinates of the marker 20 and the device information from the output unit 114 and outputs the coordinates of the marker 20 and the device information to the processing unit 154.

[0024] The processing unit 154 converts the thermal fluid analysis result 160 into AR data 162, as shown in FIG. 2(d). The AR data 162 is data for displaying the thermal fluid analysis result 160 as AR on the mobile information terminal 300. Although the AR data 162 and the thermal fluid analysis result 160 have different data formats, the AR data 162 also indicates the thermal fluid analysis result. Therefore, hereinafter, the "AR data 162" may also be referred to as the "thermal fluid analysis result 160." During the conversion, the coordinates and device information of the marker 20 are associated with the AR data 162. That is, in the analysis space 10 converted into the AR data 162 (hereinafter also referred to as the "analysis space 10"), the marker 20 is placed in the same position as before. The output unit 156 can communicate with the server 200 wirelessly or via a wired connection and transmits the AR data 162 to the server 200.

[0025] The database 210 of the server 200 receives the AR data 162 from the output unit 156. The database 210 stores the AR data 162. The database 210 transmits the AR data 162 to the portable information terminal 300 in response to a request from the portable information terminal 300.

[0026] The mobile information terminal 300 is a tablet terminal or a smartphone. Furthermore, the mobile information terminal 300 may be a 2-in-1 mobile terminal (a terminal that can be used as both a laptop and a tablet depending on the situation) that is being used as a tablet terminal. The mobile information terminal 300 may be the same device as the input terminal 100. The communication unit 310 is capable of wirelessly communicating with the server 200 and receives AR data 162 from the server. The communication unit 310 outputs the AR data 162 to the control unit 320. The control unit 320 executes a program stored in the storage unit 360. Here, a program for visualizing the thermal fluid analysis result 160 using AR is executed. When executing the program, the control unit 320 accepts user operations via the operation unit 330. The operation unit 330 is a user interface that can accept user operations, such as a touch panel.

[0027] The image capturing unit 350 is a LiDAR (Light Detection and Ranging) camera or LiDAR sensor that captures an image and identifies the distance to an object included in the captured image. The image capturing unit 350 outputs the captured image to the control unit 320. The image includes information about the identified distance. The control unit 320 causes the image captured by the image capturing unit 350 to be displayed on the display unit 340.

[0028] 2( e) shows an image displayed on the display unit 340. A marker 420 is placed in the real space corresponding to the analytical space 10. Here, the relative position of the marker 20 placed in the analytical space 10 is the same as the relative position of the marker 420 placed in the real space 410. The marker 420 is imaged by the imaging unit 350.

[0029] 2(f) shows the processing in the control unit 320. The control unit 320 identifies the position of the marker 420 in the real space 410 based on the image captured by the imaging unit 350. The control unit 320 also identifies the position of the marker 20 in the analytical space 10 based on the AR data 162. The control unit 320 associates the marker 420 with the marker 20, thereby associating the coordinates of the real space 410 with the coordinates of the analytical space 10. In other words, the real space 410 and the analytical space 10 are aligned.

[0030] As a result, the control unit 320 displays the real space 410 in three dimensions on the display unit 340, as shown in Figure 2 (g), and also displays the thermal fluid analysis results 160 obtained by the analysis unit 130 on the display unit 340, superimposed on the three-dimensionally displayed real space 410.

[0031] (2) Settings for Thermal Fluid Analysis When a user starts work by operating the input unit 112, the input terminal 100 displays the first display screen F1 of FIG. 3 on a display unit (not shown). FIG. 3 illustrates an example of the first display screen F1. The user inputs vertex coordinates of the analysis space 10 on the first display screen F1. The shape of the analysis space 10 is defined by the user specifying the vertex coordinates on the first display screen F1 through an operation (e.g., a click) by the user. Here, the user clicks C1 on the first display screen F1 to determine the vertex coordinates of a vertex T1 of the analysis space 10. Next, the user clicks C2 to determine the vertex coordinates of a vertex T2 of the analysis space 10, and a wall W1 connecting the vertices T1 and T2 is displayed. Thereafter, the user clicks C3 to C6 to determine the vertex coordinates of vertices T3 to T6 of the analytical space 10, and walls W2 to W5 connecting vertices T2 and T3, vertices T3 and T4, vertices T4 and T5, and vertices T5 and T6 are displayed. Finally, the user clicks C7 at the same location as click C1, i.e., on vertex T1, to display wall W6 connecting vertex T1 and T6, and the shape of the analytical space 10 is defined.

[0032] Once the shape of the analytical space 10 is defined, the second display screen F2 shown in FIG. 4 is displayed. FIG. 4 illustrates the second display screen F2. The user inputs the reference dimensions of the analytical space 10 on the second display screen F2. The vertex coordinates can be based on any position on the first display screen F1. When the user clicks C11 and C12 on any two locations (e.g., locations where the dimensions are known) on the second display screen F2, a reference line L connecting the two locations C11 and C12 is displayed. The dimension of the reference line L is then determined by inputting the value of the reference dimension into the reference dimension input field 31, allowing the scale between the vertex coordinates determined on the first display screen F1 to be adjusted to the actual dimension. Furthermore, on the second display screen F2, the ceiling height of the analytical space 10 is determined by inputting the ceiling height of the analytical space 10 into the ceiling height input field 32.

[0033] Once the input of the reference dimensions and ceiling height is complete, the third display screen F3 shown in FIG. 5(a) is displayed. FIGS. 5(a) and 5(b) illustrate the third display screen F3 and the fourth display screen F4. The user inputs the layout of components to be installed in the analytical space 10 on the third display screen F3. The user specifies the location of the component in the analytical space by clicking C21 to C24 on the location on the third display screen F3 where the user wants to place the component. Furthermore, the user can place a wall in the area specified by the sliding operation S1 by clicking on the third display screen F3 and then performing the sliding operation S1.

[0034] Once the placement operation on the third display screen F3 is completed, the fourth display screen F4 ( FIG. 5B ) is displayed. The user enters details of the equipment or structure placed on the third display screen F3 on the fourth display screen F4. The fourth display screen F4 displays a list of components to be placed at the positions of each of the clicks C21 to C24 and the slide operation S1. For example, for each of the clicks C21 to C24, details such as the equipment, wind direction, wind volume, and concentration (diffused substance concentration) can be entered. For example, when the user clicks on the component field of click C24 on the fourth display screen F4, a list of component types pre-registered in the storage unit 140, such as "Model A," "Model B," "Model C," and "Door," is displayed. The user can select one of the component types from the list to enter the required equipment in the component field of click C24. Similarly, details of wind direction, wind volume, and concentration for each type of component are pre-registered in the storage unit 140, and when the input field for wind direction, wind volume, or concentration is clicked, the input unit 112 accesses the storage unit 140 to display a list of pre-registered details, allowing the user to select one. Position X in the X direction (left-right direction in FIG. 5(a)) and position Y in the Y direction (up-down direction in FIG. 5(a)) are determined by detecting the coordinates of the point where the user clicks or slides, and the position is automatically reflected in each input field. Return to FIG. 1. The information on the analysis space 10 created in this way is included in the analysis target data described above.

[0035] (3) Thermal Fluid Analysis The calculation unit 136 performs a thermal fluid analysis calculation on the analysis space 10 based on the analysis target data. At that time, information about each component (model, shape, default conditions, diffusing material information, etc.) stored in the storage unit 140 is used in the thermal fluid analysis calculation. Through the thermal fluid analysis calculation, the calculation unit 136 simulates the airflow flowing out into the analysis space 10 from an air conditioner (air outlet) installed in the analysis space 10, and also simulates the diffusing material of a predetermined concentration contained in the airflow and diffusing into the analysis space 10.

[0036] Here, the airflow simulations include a simulation of the airflow blown out from an air conditioner (air outlet) and a simulation of the airflow containing a diffusing substance (hypochlorous acid). The airflow containing the diffusing substance (hypochlorous acid) is blown out, for example, from equipment other than the air conditioner (air outlet). In the simulations, the airflow is represented by a collection of vectors representing, for example, position, direction, and air volume. Meanwhile, the simulation of the diffusing substance shows the concentration of the diffusing substance at each position in the analysis space 10. In these simulations, the thermal fluid analysis results are represented by coordinates in the analysis space 10.

[0037] In a simulation of an airflow containing a diffusing substance (hypochlorous acid), multiple simulations may be performed while changing the amount of hypochlorous acid added. Also, a simulation of an airflow containing a diffusing substance (nanoe) may be performed. Furthermore, in a simulation of an airflow containing a diffusing substance (nanoe), multiple simulations may be performed while changing the amount of nanoe added.

[0038] The calculation unit 136 may perform thermal fluid analysis calculations for different pieces of analysis target data for the same analysis space 10. The different analysis target data is created, for example, by changing the air conditioner (air outlet) or the number of air conditioner (air outlets). The calculation unit 136 links the thermal fluid analysis results for the different analysis target data.

[0039] 6 illustrates a fifth display screen F5. The fifth display screen F5 is displayed on a display unit (not shown) of the input terminal 100 or a display unit (not shown) of the processing device 120. The fifth display screen F5 displays the progress of the thermal-fluid analysis calculation as the convergence status of the calculated physical property values ​​as the calculation cycle progresses. Specifically, the convergence status of the thermal-fluid calculation for turbulence energy, turbulence dissipation rate, various diffusing material concentrations, flow velocity, etc. is displayed.

[0040] 7 illustrates a sixth display screen F6. The sixth display screen F6 is displayed on a display unit (not shown) of the input terminal 100 or a display unit (not shown) of the processing device 120. The sixth display screen F6 displays the results of the thermal fluid analysis, particularly the distribution of the concentration of the diffusing material, in three dimensions in the analysis space 10.

[0041] (4) Conversion of Thermal-Fluid Analysis Results FIGS. 8( a) and 8(b) illustrate an example of an operation screen for the conversion unit 150. The operation screen is displayed on the display unit (not shown) of the input terminal 100 or the display unit (not shown) of the processing device 120. As shown in FIG. 8(a), a data reference button 400, a conversion data input field 402, and a conversion button 404 are displayed. Clicking the data reference button 400 displays a list of the thermal-fluid analysis results 160 output from the analysis result output unit 142. When one of the multiple thermal-fluid analysis results 160 included in the list is selected, the data name of the thermal-fluid analysis result 160 to be converted is displayed in the conversion data input field 402, as shown in FIG. 8(b). In this state, when the conversion button 404 is clicked, the processing unit 154 of the conversion unit 150 converts the thermal-fluid analysis result 160 into AR data 162, as described above.

[0042] (5) Display on the Portable Information Terminal FIGS. 9(a) and 9(b) show the external appearance of the portable information terminal 300. The portable information terminal 300 is a tablet terminal including a rectangular, flat housing 302 with grips on the sides. FIG. 9(a) shows one surface 304 of the housing 302 and the back surface 306 of the housing 302. The one surface 304 and the back surface 306 are opposite surfaces and both have a rectangular shape. As shown in FIG. 9(a), a rectangular display unit 340 is provided on the one surface 304 of the housing 302. The display unit 340 also functions as a touch panel. As shown in FIG. 9(b), an imaging opening 352 for an imaging unit 350 is provided on the back surface 306 of the housing 302.

[0043] 10(a)-(e) show an overview of the operation of the mobile information terminal 300. 10(a)-(e) show the screen of the display unit 340. In FIG. 10(a), multiple icons 430 are shown, and by touching an AR application icon 430, the control unit 320 launches the AR application stored in the storage unit 360. FIG. 10(b) shows the initial screen of the launched AR application. A message saying "Please capture the marker with the camera" is displayed in the center. After checking this message, the user moves the marker 420 placed in the real space 410 to a position where it can be captured by the imaging unit 350.

[0044] Following this, in Fig. 10(c), a marker 420 placed in the real space 410 is displayed on the display unit 340. In Fig. 10(d), the imaging unit 350 captures an image of the marker 420 in the state of Fig. 10(c). As a result, as described above, the control unit 320 aligns the real space 410 with the analytical space 10. In Fig. 10(e), the walls W, equipment, and fixtures of the analytical space 10 are displayed in AR.

[0045] 11(a)-(c) show screens displayed on the display unit 340. FIG. 11(a) shows the layout of the screen of the display unit 340 when an AR application is launched on the mobile information terminal 300. Here, the mobile information terminal 300 is shown in a state where the left side of the mobile information terminal 300 is held in the left hand and the right side is held in the right hand, with the display unit 340 facing the user. The mobile information terminal 300 is also held in a landscape orientation. The lower left end 500 of the display unit 340 is located in a position that can be operated with the thumb or any finger of the user's left hand, and the lower right end 502 is located in a position that can be operated with the thumb or any finger of the user's right hand. The mobile information terminal 300 may be held in one hand of the user.

[0046] 11B shows the screen of the display unit 340 when the AR application is running. The AR application generates an image (hereinafter referred to as a "composite image") by superimposing, as AR, an image of the real space 410 captured by the imaging unit 350 and the thermal fluid analysis result 160 in which the real space 410 is set as the analysis space 10. At this time, the AR application aligns the coordinates of the image of the real space 410 with the coordinates of the analysis space 10 by aligning the markers 420 and 20. The display unit 340 displays the composite image generated by the AR application.

[0047] The display unit 340 displays, superimposed on the composite image, a concentration ON / OFF switch button 510, an airflow display mode switch button 512, a before / after switch button 514, a concentration play / stop operation control button 520, a reset operation control button 522, an elapsed time 524, and an indicator 530. The concentration ON / OFF switch button 510, the airflow display mode switch button 512, the before / after switch button 514, the concentration play / stop operation control button 520, the reset operation control button 522, and the elapsed time 524 are included in the operation unit 330 in Figure 1 and accept operations (touch operations) from the user. The operation unit 330 is used to operate the image displayed on the display unit 340, particularly the thermal fluid analysis result 160.

[0048] The concentration ON / OFF switch button 510, the airflow display mode switch button 512, and the before / after switch button 514 are switch buttons for switching the information displayed on the display unit 340. These switch buttons are located at the lower left end 500. The concentration play / stop operation control button 520, the reset operation control button 522, and the elapsed time 524 are operation control buttons for controlling the operation of the thermal fluid analysis result 160 displayed on the display unit 340. These operation control buttons are located at the lower right end 502. In other words, the composite image is displayed as widely as possible, and the switch buttons and operation control buttons that require operation are located as close as possible to the finger movement range, assuming that the mobile information terminal 300 is held with both hands. Alternatively, the switch buttons may be located at the lower right end 502 of FIG. 11, and the operation control buttons may be located at the lower left end 500.

[0049] The indicator 530 includes a diffusing material type indicator 532 indicating the type of diffusing material and an airflow status indicator 534 indicating the status of the airflow, and is disposed on the upper right side of the display unit 340. The indicator 530 may also be disposed on the upper left side of the display unit 340. The indicator is constantly displayed while the AR application is running. Meanwhile, the operation control buttons are switched between being displayed and not displayed on the display unit 340 by detecting whether or not a finger has touched the display unit 340 within a predetermined period of time. That is, if the operation unit 330 does not detect a finger touching the operation control button for a predetermined period of time, the control unit 320 does not display the operation control button on the display unit 340. Meanwhile, if the operation unit 330 detects a finger touching the operation control button, the control unit 320 displays the operation control button on the display unit 340. The switching buttons, the switching operations performed by operating the operation control buttons, and the notifications provided by the indicator 530 will be described later.

[0050] 11(c) shows another screen of the display unit 340 when an AR application is running. Instead of the concentration ON / OFF switch button 510, airflow display mode switch button 512, and before / after switch button 514 shown in FIG. 11(b), an airflow display mode switch button 512, a ZIA additive amount display mode switch button 516, and a nanoe additive amount display mode switch button 518 are located at the bottom left end 500. The airflow display mode switch button 512, the ZIA additive amount display mode switch button 516, and the nanoe additive amount display mode switch button 518 are also switch buttons. "ZIA" is a shorthand notation for operational purposes and indicates air containing hypochlorous acid as a diffusing substance.

[0051] 12(a)-(d) show screens displayed on the display unit 340 when the orientation of the portable information terminal 300 is changed. As before, FIGS. 12(a)-(b) show a situation in which the portable information terminal 300 is held in a landscape orientation. As described above, the concentration ON / OFF switch button 510, airflow display mode switch button 512, and before / after switch button 514 are located at the lower left end 500. Furthermore, the concentration play / stop operation control button 520, reset operation control button 522, and elapsed time 524 are located at the lower right end 502.

[0052] 12(c)-(d) illustrate a situation where the portable information terminal 300 is held in a portrait orientation, unlike the previous situation. The portable information terminal 300 includes an acceleration sensor (not shown) and a geomagnetic sensor (not shown), and the control unit 320 determines the orientation of the portable information terminal 300 by combining the detection results of these sensors. When the control unit 320 determines that the portable information terminal 300 is in a portrait orientation, it moves the lower left end 500 and the lower right end 502 to the positions shown in FIG. 12(d). Furthermore, the control unit 320 arranges the switching buttons and operation control buttons at the lower left end 500 and the lower right end 502 in the same manner as before. As a result, the concentration ON / OFF switching button 510, the airflow display mode switching button 512, and the before / after switching button 514 are arranged at the lower left end 500. Also located at the bottom right edge 502 are a density play / stop operation control button 520 , a reset operation control button 522 , and an elapsed time 524 .

[0053] That is, the display unit 340 detects the gripping position of the housing 302, and switches the display position of the operation unit 330 so that the position where it is superimposed on the composite image is the same as the position of the user's thumb. In this way, the display positions of the control buttons and operation control buttons change to optimal positions depending on whether the mobile information terminal 300 is held horizontally or vertically.

[0054] The switching buttons, operation control buttons, and indicators 530 shown in FIGS. 11(b) and 11(c) are described in detail below. The concentration ON / OFF switching button 510 in FIG. 11(b) is a button for switching whether or not to display the concentration of the diffusible substance (hypochlorous acid) in the thermal fluid analysis result 160. Each time the user touches the concentration ON / OFF switching button 510, the control unit 320 alternates between "concentration ON" and "concentration OFF" as the display of the concentration ON / OFF switching button 510. "Concentration ON" corresponds to displaying the concentration of the diffusible substance (hypochlorous acid), and "concentration OFF" corresponds to not displaying the concentration of the diffusible substance (hypochlorous acid).

[0055] The airflow display mode switching button 512 is a button for switching whether or not to display airflow in the thermal fluid analysis result 160, and for switching the type of airflow when airflow is displayed. Each time the user touches the airflow display mode switching button 512, the control unit 320 switches the display of the airflow display mode switching button 512 between "Airflow OFF," "Airflow Air," "Airflow Zia," and "Both Airflows" in order.

[0056] "Airflow OFF" corresponds to not displaying the airflow, "Airflow Air" corresponds to displaying the airflow blown out from the air conditioner (outlet), and "Airflow Zia" corresponds to displaying the airflow containing the diffusing substance (hypochlorous acid). Here, "Airflow Zia" may be blown out from a device other than the air conditioner (outlet). Furthermore, "Both Airflows" corresponds to displaying the airflow blown out from the air conditioner (outlet) and the airflow containing the diffusing substance (hypochlorous acid).

[0057] 13(a)-(h) show screens displayed on the display unit 340. FIG. 13(a) shows a screen when "Concentration OFF" is set using the concentration ON / OFF switch button 510 and "Airflow OFF" is set using the airflow display mode switch button 512. In this case, the control unit 320 uses the AR application to generate a composite image using only the image of the real space 410 captured by the imaging unit 350, without using the thermal fluid analysis result 160. The display unit 340 displays the image of the real space 410 captured by the imaging unit 350 as the composite image.

[0058] 13B shows a screen when "Concentration OFF" is set using the concentration ON / OFF switching button 510 and "Airflow" is set using the airflow display mode switching button 512. In this case, the control unit 320 generates a composite image by using an AR application to overlay an image of the real space 410 captured by the imaging unit 350 and the thermal fluid analysis result 160 for the airflow blown out from the air conditioner (air outlet) as AR. The display unit 340 displays, as the composite image, the image of the real space 410 captured by the imaging unit 350 and air conditioner streamlines 550 that indicate the airflow blown out from the air conditioner (air outlet).

[0059] 13(c) shows the screen when "Concentration OFF" is set using the concentration ON / OFF switch button 510 and "Airflow Dia" is set using the airflow display mode switch button 512. In this case, the control unit 320 generates a composite image by using an AR application to overlay an image of the real space 410 captured by the imaging unit 350 and the thermal fluid analysis result 160 for the airflow containing the diffusing substance (hypochlorous acid) as AR. The display unit 340 displays, as the composite image, the image of the real space 410 captured by the imaging unit 350 and a diffusing substance streamline 552 indicating the airflow containing the diffusing substance (hypochlorous acid).

[0060] 13(d) shows a screen displayed when "Concentration OFF" is selected using the concentration ON / OFF switch button 510 and "Both Airflows" is selected using the airflow display mode switch button 512. In this case, the control unit 320 generates a composite image by overlaying, as AR, an image of the real space 410 captured by the imaging unit 350, a thermal fluid analysis result 160 for the airflow blown out from the air conditioner (air outlet), and a thermal fluid analysis result 160 for the airflow containing a diffusing substance (hypochlorous acid). The display unit 340 displays, as a composite image, the image of the real space 410 captured by the imaging unit 350, an air conditioner streamline 550 indicating the airflow blown out from the air conditioner (air outlet), and a diffusing substance streamline 552 indicating the airflow containing a diffusing substance (hypochlorous acid).

[0061] 13( e) shows a screen when "concentration ON" is set using the concentration ON / OFF switch button 510 and "airflow OFF" is set using the airflow display mode switch button 512. In this case, the control unit 320 generates a composite image by using an AR application to overlay an image of the real space 410 captured by the imaging unit 350 and the thermal fluid analysis result 160 for the diffused substance concentration as AR. The display unit 340 displays, as the composite image, the image of the real space 410 captured by the imaging unit 350 and a diffused substance concentration 560 indicating the diffused substance concentration.

[0062] Here, when generating the composite image, the control unit 320 colors the diffusing material in the analytical space 10 with a predetermined color on the projected image of the real space 410. The control unit 320 also changes the transparency of the colored color depending on the concentration of the diffusing material. At this time, the color may be changed depending on the concentration of the diffusing material. The display unit 340 displays the diffusing material concentration 560 colored in this way.

[0063] 13( f) shows a screen displayed when "Concentration ON" is selected using the concentration ON / OFF switch button 510 and "Airflow" is selected using the airflow display mode switch button 512. In this case, the control unit 320 generates a composite image by using an AR application to overlay, as AR, an image of the real space 410 captured by the imaging unit 350, a thermo-fluid analysis result 160 regarding the diffused substance concentration, and a thermo-fluid analysis result 160 regarding the airflow blown out from the air conditioner (air outlet). The display unit 340 displays, as the composite image, the image of the real space 410 captured by the imaging unit 350, a diffused substance concentration 560 indicating the diffused substance concentration, and an air conditioner streamline 550 indicating the airflow blown out from the air conditioner (air outlet).

[0064] 13(g) shows the screen when "Concentration ON" is set using the concentration ON / OFF switch button 510 and "Airflow Dia" is set using the airflow display mode switch button 512. In this case, the control unit 320 generates a composite image by using an AR application to overlay an image of the real space 410 captured by the imaging unit 350, a thermo-fluid analysis result 160 for the diffusing substance concentration, and a thermo-fluid analysis result 160 for the airflow containing the diffusing substance (hypochlorous acid). The display unit 340 displays, as the composite image, the image of the real space 410 captured by the imaging unit 350, a diffusing substance concentration 560 indicating the diffusing substance concentration, and a diffusing substance streamline 552 indicating the airflow containing the diffusing substance (hypochlorous acid).

[0065] 13(h) shows a screen displayed when "Concentration ON" is selected using the concentration ON / OFF switch button 510 and "Both Airflows" is selected using the airflow display mode switch button 512. In this case, the control unit 320 generates a composite image by overlaying, as AR, an image of the real space 410 captured by the imaging unit 350, a thermal fluid analysis result 160 for the diffusing substance concentration, a thermal fluid analysis result 160 for the airflow blown out from the air conditioner (air outlet), and a thermal fluid analysis result 160 for the airflow containing the diffusing substance (hypochlorous acid). The display unit 340 displays, as the composite image, the image of the real space 410 captured by the imaging unit 350, a diffusing substance concentration 560 indicating the diffusing substance concentration, an air conditioner streamline 550 indicating the airflow blown out from the air conditioner (air outlet), and a diffusing substance streamline 552 indicating the airflow containing the diffusing substance (hypochlorous acid).

[0066] In Figures 13(b)-(d) and 13(f)-(h), the control unit 320 displays airflows with a certain wind speed or greater as line segments along the flow direction, starting from the air conditioner (air outlet), on the display unit 340, so that the origin and direction of the airflow, e.g., air conditioner streamline 550 and diffused material streamline 552, can be understood. Furthermore, the control unit 320 represents the airflow as lines or dense, moving particles (dashed lines) to intuitively convey the airflow's movement. In this case, the particles are displayed as moving according to the airflow speed. However, the movement of the moving particles is set to a speed that can be tracked by the eye, rather than the actual speed (a few m / s is too fast). Furthermore, the control unit 320 colors the airflow according to the type of diffused material. For example, airflows containing a diffused material (hypochlorous acid) are displayed in green, and airflows blown out of the air conditioner (air outlet) are displayed in white.

[0067] The display of airflow, e.g., air conditioner streamlines 550 and diffused material streamlines 552, will be described in more detail below. When the control unit 320 superimposes the image of the real space 410 and the thermal fluid analysis result 160, the control unit 320 generates line segments along the flow direction of the airflow flowing out from the air conditioner (air outlet) based on the vectors included in the thermal fluid analysis result 160 and displays the line segments on the display unit 340. In this case, the control unit 320 determines the distance between the airflow line segments and the mobile information terminal 300 based on the distance between the object in the image acquired by the imaging unit 350 and the mobile information terminal 300. The control unit 320 also changes the length and thickness of the line segments depending on the determined distance, i.e., the perspective position in the displayed analysis space 10.

[0068] 14 shows a screen displayed on display unit 340. Here, air conditioner streamlines 550 and diffused material streamlines 552 are classified into nearby streamlines 554 that are relatively close to mobile information terminal 300 and distant streamlines 556 that are relatively far from mobile information terminal 300. Nearby streamlines 554 correspond to airflows close to the viewpoint, and distant streamlines 556 correspond to airflows far from the viewpoint. Nearby streamlines 554 are shown as thick, long line segments, and distant streamlines 556 are shown as thin, short line segments.

[0069] 11(c) is a button for switching the amount of diffusible substance (hypochlorous acid) added to the airflow. Each time the user touches the zia addition amount display mode switching button 516, the control unit 320 switches the display of the zia addition amount display mode switching button 516 between "Zia OFF," "Zia 20," "Zia 32," and "Zia 39," in order. Furthermore, the control unit 320 uses an AR application to generate a composite image including the thermal fluid analysis results 160 for the airflow with different amounts of hypochlorous acid added, and displays the composite image on the display unit 340.

[0070] 11(c) is a button for switching the amount of diffusive substance (nanoe) added to the airflow. Each time the user touches the nanoe addition amount display mode switching button 518, the control unit 320 switches the display of the nanoe addition amount display mode switching button 518 between "nanoe OFF," "nanoe 10," "nanoe 20," and "nanoe 100," in order. The control unit 320 also uses an AR application to generate a composite image including the thermal fluid analysis results 160 for the airflow with different amounts of nanoe added, and displays the composite image on the display unit 340.

[0071] 11(b) includes a diffusing material type indicator 532 and an airflow state indicator 534, as described above. The "nanoe" and "zia" included in the diffusing material type indicator 532 indicate the type of diffusing material when the thermofluid analysis result 160 for the diffusing material concentration is displayed. For example, when displaying the thermofluid analysis result 160 for the concentration of hypochlorous acid, the control unit 320 turns on the "zia" portion of the diffusing material type indicator 532 and turns off the "nanoe" portion.

[0072] The "air," "nanoe," and "zia" included in the airflow state indicator 534 indicate the type of diffusive material when the thermofluid analysis result 160 for the airflow is displayed. For example, when the control unit 320 displays the thermofluid analysis result 160 for an airflow that does not contain a diffusive material, the control unit 320 lights up the "air" portion of the airflow state indicator 534. When the control unit 320 displays the thermofluid analysis result 160 for an airflow that contains a diffusive material (nanoe), the control unit 320 lights up the "nanoe" portion of the airflow state indicator 534. When the control unit 320 displays the thermofluid analysis result 160 for an airflow that contains a diffusive material (hypochlorous acid), the control unit 320 lights up the "zia" portion of the airflow state indicator 534.

[0073] 11(b)-(c) will be described in detail below. The Before / After switching button 514 is a button for switching between the thermo-fluid analysis results 160 for each of the different analysis target data. Each time the user touches the Before / After switching button 514, the control unit 320 alternates between "Before" and "After" as the display of the Before / After switching button 514.

[0074] 15(a)-(b) show screens displayed on the display unit 340. FIG. 15(a) shows the screen when "Before" is set using the Before / After switching button 514. FIG. 15(a) is shown in the same manner as before. FIG. 15(b) shows the screen when "After" is set using the Before / After switching button 514. The control unit 320 generates a composite image using a thermal fluid analysis result 160 that is different from the thermal fluid analysis result 160 for the analysis target data used in FIG. 15(a). Here, a virtual air conditioner 570 has been added, and airflow is being blown out from the virtual air conditioner 570.

[0075] The concentration play / stop control button 520, reset control button 522, and elapsed time 524 shown in FIGS. 11(b)-(c) are described in detail below. Although not described above, the thermal fluid analysis result 160 in the calculation unit 136 or the composite image in the control unit 320 is not generated for a single timing, but is generated continuously at regular intervals over a predetermined time period from a start timing. The start timing refers to the timing at which the air conditioner (air outlet) starts blowing airflow or the timing at which the diffusing material starts attaching to the airflow. The regular intervals may be, for example, one second, ten seconds, or one minute. The predetermined time is the time required for the concentration of the diffusing material in the analysis space 10 to converge. This can also be said to be the time required for the fluctuation values ​​of the diffusing materials (diffusing material 1 to diffusing material 3) shown in FIG. 6 to converge. Convergence is determined by the difference between the average value of the concentration of the diffusing material in the analysis space 10 at a specified timing and the average value of the concentration of the diffusing material in the analysis space 10 at the timing one timing after the specified timing being within a certain range.

[0076] The density play / stop operation control button 520 is a button for instructing whether to display composite images generated continuously at regular intervals in chronological order or to stop the display. When the control unit 320 receives a display instruction from the density play / stop operation control button 520, it plays back the composite images in chronological order and displays them on the display unit 340. At this time, the elapsed time 524 indicates the elapsed time from the start timing.

[0077] 16(a)-(c) show screens displayed on the display unit 340. Here, as an example, "Concentration ON" is set using the concentration ON / OFF switch button 510, and "Airflow OFF" is set using the airflow display mode switch button 512. FIG. 16(a) shows a composite image at the start timing. Since it is the start timing, the concentration of the diffusing material is low. Therefore, the diffusing material concentration 560 is displayed with a high transparency. FIG. 16(b) shows a composite image at a timing five minutes after the start timing. Because the diffusing material has been added to the airflow for five minutes, the concentration of the diffusing material has increased. Therefore, the diffusing material concentration 560 is displayed with a lower transparency than in FIG. 16(a). FIG. 16(c) shows a composite image at a timing ten minutes after the start timing. Because the diffusing material has been added to the airflow for ten minutes, the concentration of the diffusing material has further increased. Therefore, the diffusing material concentration 560 is displayed with a lower transparency than in FIG. 16(b). Similar changes are shown when air currents are included in the composite image.

[0078] In this way, when the display unit 340 displays the image of the real space 410 captured by the imaging unit 350 and the thermo-fluid analysis result 160 in which the space is set as the analysis space 10 in an overlaid manner as AR, the display unit 340 dynamically displays the state in which the thermo-fluid analysis result 160 changes over time. In particular, the display unit 340 displays, as the thermo-fluid analysis result 160, the results from the start of adding the diffusing material to the airflow until a predetermined time has elapsed in time.

[0079] The reset operation control button 522 is a button for instructing to return the time during which the composite image is being played back to the start timing. This can also be said to be a button for resetting the elapsed time since the addition of the diffusing material to the airflow began. When the control unit 320 receives a reset instruction via the reset operation control button 522, it returns the timing during which the composite image is being played back to the start timing.

[0080] The subject of the device, system, or method disclosed herein includes a computer. The computer executes a program to realize the functions of the subject of the device, system, or method disclosed herein. The computer includes, as its main hardware configuration, a processor that operates according to the program. The type of processor is not important as long as it can realize the functions by executing the program. The processor is composed of one or more electronic circuits, including a semiconductor integrated circuit (IC) or an LSI (Large Scale Integration). The multiple electronic circuits may be integrated into a single chip or may be provided on multiple chips. The multiple chips may be integrated into a single device or may be provided on multiple devices. The program is recorded on a non-transitory recording medium, such as a computer-readable ROM, optical disk, or hard disk drive. The program may be pre-stored on the recording medium or may be supplied to the recording medium via a wide area communication network, including the Internet.

[0081] According to this embodiment, when an image of the real space 410 and the thermal fluid analysis result 160 are overlaid and displayed as AR, the time-series changes in the thermal fluid analysis result 160 are dynamically displayed, thereby informing the user of changes in the environment over time. Furthermore, when generating a composite image, the diffusing material is colored with a predetermined color on the projected image of the real space 410, and the transparency of the color is changed depending on the concentration of the diffusing material, thereby visualizing the spatial concentration distribution of the diffusing material. Furthermore, the airflow is displayed with a predetermined color and a predetermined intensity depending on the concentration of the diffusing material, thereby visualizing the state of the airflow. Furthermore, the results from the start of adding the diffusing material to the airflow until a predetermined time has elapsed are displayed in chronological order, thereby improving the understanding of the temporal changes in the spatial concentration distribution. Furthermore, since the predetermined time is the time until the concentration of the diffusing material converges, the time-series changes in the concentration of the diffusing material can be notified.

[0082] In addition, the diffusing substance contains either hypochlorous acid or a substance containing OH radicals generated by applying high voltage to moisture in the air, making it easy to understand the sterilization effect. Furthermore, the airflow is displayed using lines along the flow direction, and the length of the lines is displayed as long for airflow closer to the viewpoint and short for airflow farther from the viewpoint, making the airflow state visible. Furthermore, the lines are displayed moving according to the airflow speed, making the airflow state visible.

[0083] Furthermore, the operation unit 330 is superimposed on a composite image in which an image of the real space 410 and the thermal fluid analysis result 160 are superimposed as AR. The operation unit 330 is positioned so that it can be operated with the thumb or any of the fingers when held in both hands or one hand of the user, thereby improving the user's operability for displaying the thermal fluid analysis result 160. Furthermore, the operation unit 330 superimposed on the composite image is positioned at either the lower left end 500 or the lower right end 502 of the display unit 340, thereby improving the user's operability. Furthermore, the switching button is positioned at the lower right end 502 of the display unit 340, and the operation control button is positioned at the lower right end 502 of the display unit 340, thereby improving the user's operability. Furthermore, the switching button is positioned at the lower right end 502 of the display unit 340, and the operation control button is positioned at the lower left end 500 of the display unit 340, thereby improving the user's operability.

[0084] Furthermore, by detecting whether or not a finger has touched the display unit 340 within a predetermined time, the display of the operation control button is switched on and off, and the indicator 530 is constantly displayed, thereby achieving both an expansion of the display area of ​​the composite image and improved visibility of notifications. Furthermore, by displaying the indicator 530 at least at the top right end or top left end of the display unit 340, the indicator 530 can be displayed in a position separate from the operation unit 330.

[0085] Furthermore, the operation control button includes an operation button for switching whether or not to stop the dynamic display and resetting the elapsed time since the addition of the diffusing material to the airflow started, thereby improving user operability. Furthermore, the switching button includes an operation button for switching whether or not to add the diffusing material to the airflow and switching the amount of diffusing material added to the airflow, thereby improving user operability. Furthermore, the gripping position of the housing 302 is detected, and the position where the operation unit 330 is superimposed on the composite image is switched so that it is in the same position as the user's thumb, thereby improving user operability.

[0086] An overview of one aspect of the present disclosure is as follows: (Item 1-1) A visualization device (300) for a thermal fluid analysis result (160), comprising: a rectangular, flat housing (302); a rectangular display unit (340) provided on one surface (304) of the housing (302); and an imaging unit (350) having an imaging opening on a back surface (306) of the one surface (304), wherein the display unit (340) dynamically displays a time-series change in the thermal fluid analysis result (160) when overlaying an image of the space captured by the imaging unit (350) on a thermal fluid analysis result (160) in which the space is set as an analysis space (10) as an augmented reality (AR) display.

[0087] (Item 1-2) The thermal fluid analysis result (160) is a simulation of an airflow flowing out into the analysis space (10) from an air outlet installed on the analysis space (10) and a diffusing material of a predetermined concentration contained in the airflow and diffusing into the analysis space (10), and the display unit (340), when displaying an image of the space and the thermal fluid analysis result (160) in an overlapping manner, colors the diffusing material in the analysis space (10) with a predetermined color on the projected image of the space and changes the transparency of the colored color depending on the concentration of the diffusing material.

[0088] (Item 1-3) The visualization device (300) for a thermal fluid analysis result (160) according to Item 1-2, wherein the display unit (340) displays the airflow flowing out of the air outlet by coloring it with a predetermined color and a predetermined intensity according to the concentration of the diffusing material.

[0089] (Item 1-4) The visualization device (300) for a thermal fluid analysis result (160) according to Item 1-2 or 1-3, wherein the display unit (340) displays, as the thermal fluid analysis result (160), results from when the addition of the diffusing material to the airflow starts until a predetermined time has elapsed in chronological order.

[0090] (Item 1-5) The visualization device (300) for a thermal fluid analysis result (160) according to Item 1-4, wherein the predetermined time is a time required for the concentration of the diffusing material in the analysis space (10) to converge.

[0091] (Item 1-6) The visualization device (300) for a thermal fluid analysis result (160) according to Item 1-2 or 1-3, wherein the diffusing substance includes any one of hypochlorous acid and a substance containing OH radicals generated by applying a high voltage to moisture in the air.

[0092] (Item 1-7) The visualization device (300) for a thermal fluid analysis result (160) according to Item 1-2 or 1-3, wherein when the display unit (340) displays the image of the space and the thermal fluid analysis result (160) in an overlapping manner, the display unit (340) displays the airflow flowing out of the air outlet with a line segment along the flow direction, and displays the length of the line segment according to a perspective position in the displayed analysis space (10), such that airflow closer to a viewpoint is longer and airflow farther from the viewpoint is shorter.

[0093] (Item 1-8) The visualization device (300) for a thermal fluid analysis result (160) according to Item 1-7, wherein the display unit (340) moves and displays the line segment according to the flow speed of the airflow.

[0094] (Item 2-1) A device comprising: a rectangular, flat housing (302) with a side edge serving as a grip; a rectangular display unit (340) provided over the entirety of one surface (304) of the housing (302); an imaging unit (350) having an imaging opening on the back surface (306) of the one surface (304); and an operation unit (330) for operating an image to be displayed on the display unit (340), wherein the display unit (340) displays an image of a space captured by the imaging unit (350) and a thermo-fluid analysis result (160) in which the space is set as an analysis space (10) by superimposing the image as augmented reality (AR), and displays the operation unit (330) by superimposing it on a composite image in which the image of the space and the thermo-fluid analysis result (160) are superimposed, The operation unit (330) superimposed on the composite image is positioned so that it can be operated with the thumb or any of the fingers when the user holds the gripping unit in both hands or one hand.

[0095] (Item 2-2) The mobile information terminal (300) according to Item 2-1, wherein the operation unit (330) superimposed on the composite image is disposed at either the lower left end (500) or the lower right end (502) of the display unit (340).

[0096] (Item 2-3) The mobile information terminal (300) according to Item 2-2, wherein the operation unit (330) provided at the lower left end (500) of the display unit (340) is a switching button (510, 512, 514, 516, 518) for switching information to be displayed on the display unit (340), and the operation unit (330) provided at the lower right end (502) of the display unit (340) is an operation control button (520, 522, 524) for controlling the operation of the thermal fluid analysis result (160) to be displayed on the display unit (340).

[0097] (Item 2-4) The mobile information terminal (300) according to Item 2-2, wherein the operation unit (330) provided at the lower right end (502) of the display unit (340) is a switching button (510, 512, 514, 516, 518) for switching information to be displayed on the display unit (340), and the operation unit (330) provided at the lower left end (500) of the display unit (340) is an operation control button (520, 522, 524) for controlling the operation of the thermal fluid analysis result (160) to be displayed on the display unit (340).

[0098] (Item 2-5) The mobile information terminal (300) according to Item 2-3 or 2-4, wherein the thermal fluid analysis result (160) is a simulation of the airflow flowing out from an air conditioner and a diffusing material contained in the airflow, the display unit (340) further includes an indicator (530) that indicates the type of diffusing material and the state of the airflow, the operation control buttons (520, 522, 524) detect whether a finger has touched the display unit (340) within a predetermined time period and switch between display and non-display within the display unit (340), and the indicator (530) is always displayed.

[0099] (Item 2-6) The mobile information terminal (300) according to Item 2-3 or 2-4, wherein the thermal fluid analysis result (160) is a simulation of the airflow flowing out from an air conditioner and a diffusing material contained in the airflow, the display unit (340) further includes an indicator (530) that indicates the type of diffusing material and the state of the airflow, and the indicator (530) is displayed at least at one of the upper right end or the upper left end of the display unit (340).

[0100] (Item 2-7) The mobile information terminal (300) according to Item 2-3 or 2-4, wherein the thermal fluid analysis result (160) is a simulation of an airflow flowing out from an air conditioner and a diffusing material contained in the airflow, and the operation control buttons (520, 522, 524) have an operation button for operating at least one of switching whether or not a dynamic display is stopped, and resetting the elapsed time since the addition of the diffusing material to the airflow started.

[0101] (Item 2-8) The mobile information terminal (300) according to Item 2-3 or 2-4, wherein the thermal fluid analysis result (160) is a simulation of an airflow flowing out from an air conditioner and a diffusing material contained in the airflow, and the switching buttons (510, 512, 514, 516, 518) have an operation button for operating at least one of switching whether or not the diffusing material is added to the airflow and switching the amount of the diffusing material added to the airflow.

[0102] (Item 2-9) The mobile information terminal (300) according to Item 2-2, wherein the display unit (340) detects a gripping position of the housing (302) when the housing (302) is gripped by a hand, and switches and displays the operation unit (330) so that the position at which the operation unit (330) is superimposed on the composite image is the same position as the thumb of the user.

[0103] The present disclosure has been described above based on examples. These examples are merely illustrative, and it will be understood by those skilled in the art that various modifications are possible in the combination of each component or each treatment process, and that such modifications are also within the scope of the present disclosure.

[0104] According to the present disclosure, it is possible to notify the user of changes in the environment over time, and it is also possible to improve the operability of the user when displaying the results of thermal fluid analysis.

[0105] 10 Analysis space, 31 Reference dimension input field, 32 Ceiling height input field, 100 Input terminal, 110 Setting unit, 112 Input unit, 114 Output unit, 120 Processing device, 130 Analysis unit, 132 Acquisition unit, 134 Processing unit, 136 Calculation unit, 138 Determination unit, 140 Storage unit, 142 Analysis result output unit, 150 Conversion unit, 152 Analysis result acquisition unit, 154 Processing unit, 156 Output unit, 160 Thermal fluid analysis result, 162 AR data, 200 Server, 210 Database, 300 Portable information terminal, 302 Housing, 304 One side, 306 Rear side, 310 Communication unit, 320 Control unit, 330 Operation unit, 340 Display unit 350 Imaging unit, 352 Imaging port, 360 Memory unit, 400 Data reference button, 402 Conversion data input field, 404 Conversion button, 410 Real space, 420 Marker, 430 Icon, 500 Bottom left end, 502 Bottom right end, 510 Concentration ON / OFF switch button, 512 Airflow display mode switch button, 514 Before / After switch button, 516 Zia addition amount display mode switch button, 518 Nanoe addition amount display mode switch button, 520 Concentration play / stop operation control button, 522 Reset operation control button, 524 Elapsed time, 530 Indicator, 532 Diffusion material type indicator, 534 Airflow state indicator, 550 Air conditioner flow line, 552 Diffusion material flow line, 554 Near streamlines, 556 distant streamlines, 560 diffuse material concentration, 570 virtual air conditioner, 1000 visualization system.

Claims

1. A device for visualizing the results of a thermal fluid analysis comprising: a rectangular, flat housing; a rectangular display unit provided on one side of the housing; and an imaging unit with an imaging port on the back side of the one side, wherein the display unit dynamically displays the time-series changes in the results of the thermal fluid analysis when overlaying an image of the space captured by the imaging unit on the results of a thermal fluid analysis in which the space is set as an analysis space as AR (Augmented Reality).

2. The device for visualizing thermal fluid analysis results described in claim 1, wherein the thermal fluid analysis results are a simulation of an airflow flowing out into the analysis space from an outlet installed in the analysis space and a diffuse material of a predetermined concentration contained in the airflow and diffused into the analysis space, and when the display unit superimposes the image of the space and the thermal fluid analysis results, it colors the diffuse material in the analysis space with a predetermined color on the projected image of the space and changes the transparency of the color depending on the concentration of the diffuse material.

3. The device for visualizing the results of thermal fluid analysis according to claim 2, wherein the display unit displays the airflow flowing out of the outlet in a predetermined color and with a predetermined intensity according to the concentration of the diffusing substance.

4. The device for visualizing the results of thermal fluid analysis according to claim 2 or 3, wherein the display unit displays, as the results of the thermal fluid analysis, the results in chronological order from when the addition of the diffusing material to the airflow began until a predetermined time has elapsed.

5. The device for visualizing the results of thermal fluid analysis according to claim 4, wherein the predetermined time is a time required for the concentration of the diffusing material in the analysis space to converge.

6. The device for visualizing the results of thermal fluid analysis according to claim 2 or 3, wherein the diffusing substance includes either one of hypochlorous acid and a substance containing OH radicals generated by applying a high voltage to moisture in the air.

7. A visualization device for thermal fluid analysis results as described in claim 2 or 3, wherein when the display unit displays the image of the space and the thermal fluid analysis results in an overlapping manner, the display unit displays the airflow flowing out of the outlet as a line segment along the flow direction, and the length of the line segment is displayed according to the perspective position in the displayed analysis space, with airflow closer to the viewpoint being longer and airflow farther from the viewpoint being shorter.

8. The device for visualizing a result of a thermal fluid analysis according to claim 7, wherein the display unit displays the line segment by moving it in accordance with the flow speed of the air current.

9. A portable information terminal comprising: a rectangular, flat housing with a side serving as a grip; a short display section provided over the entirety of one side of said housing; an imaging section with a shooting port on the back side of said one side; and an operation section for operating an image to be displayed on said display section, wherein said display section displays an image of a space captured by said imaging section and the results of a thermo-fluid analysis in which said space is set as an analysis space, superimposed as AR (Augmented Reality), and displays said operation section superimposed on a composite image in which the image of said space and the results of said thermo-fluid analysis are superimposed, and said operation section superimposed on said composite image is positioned so that it can be operated with the thumb or any of the fingers when said grip section is held in both or one hand of a user.

10. The portable information terminal according to claim 9, wherein the operation unit superimposed on the composite image is disposed at either the lower left or lower right edge of the display unit.

11. The portable information terminal according to claim 10, wherein the operation unit provided at the lower left end of the display unit is a switch button for switching the information to be displayed on the display unit, and the operation unit provided at the lower right end of the display unit is an operation control button for controlling the operation of the thermal fluid analysis results to be displayed on the display unit.

12. The portable information terminal according to claim 10, wherein the operation unit provided at the lower right end of the display unit is a switch button for switching the information to be displayed on the display unit, and the operation unit provided at the lower left end of the display unit is an operation control button for controlling the operation of the thermal fluid analysis results to be displayed on the display unit.

13. A mobile information terminal as described in claim 11 or 12, wherein the thermal fluid analysis results are a simulation of the airflow flowing out of an air conditioner and diffusive material contained in the airflow, the display unit further includes an indicator that indicates the type of diffusive material and the state of the airflow, the operation control button detects whether a finger has touched the display unit within a predetermined period of time and switches between display and non-display within the display unit, and the indicator is constantly displayed.

14. A portable information terminal as described in claim 11 or 12, wherein the thermal fluid analysis results are a simulation of the airflow flowing out of an air conditioner and a diffusive material contained in the airflow, and the display unit further includes an indicator that indicates the type of diffusive material and the state of the airflow, and the indicator is displayed on at least one of the upper right end or the upper left end of the display unit.

15. A mobile information terminal as described in claim 11 or 12, wherein the thermal fluid analysis results are a simulation of the airflow flowing out of an air conditioner and the diffusive material contained in the airflow, and the operation control button has an operation button for operating at least one of switching whether or not to stop the dynamic display, and resetting the elapsed time since the addition of the diffusive material to the airflow began.

16. A portable information terminal as described in claim 11 or 12, wherein the thermal fluid analysis results are a simulation of the airflow flowing out of an air conditioner and the diffusive material contained in the airflow, and the switching button has an operation button for operating at least one of switching whether or not the diffusive material is added to the airflow and switching the amount of the diffusive material added to the airflow.

17. The portable information terminal according to claim 10, wherein the display unit detects the gripping position of the housing when the hand is gripping the housing, and switches the position at which the operation unit is superimposed on the composite image so that it is in the same position as the user's thumb.

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