JP4465331B2 - Architectural design program, recording medium storing the program, and architectural CAD device in which the program is installed - Google Patents

Description

  The present invention relates to an architectural design program having a ventilation simulation function, a recording medium storing the program, and an architectural CAD device in which the program is installed.

  Along with the rapid development of computer technology in recent years, a so-called architectural CAD (Computer Aided Design) apparatus has been known which uses a computer to create architectural drawings that have been manually performed using a draft or the like. (For example, Patent Documents 1 and 2 below). In other words, installing architectural CAD software on a computer such as a personal computer allows the computer to function as a design support device, and efficiently creates drawings such as floor plans using the computer's arithmetic and storage functions. is there. As CAD, various fields are commercialized, but an architectural CAD is generally provided with functions such as a plan view creation, an elevation view creation, a perspective view creation, and an estimate creation.

JP-A-9-259166 JP-A-9-259167

  In recent years, the sickness of sick house syndrome has attracted attention, and interest in indoor ventilation and ventilation is increasing. However, an architectural CAD having a ventilation simulation function as a current architectural CAD has not yet been commercialized. As a function of architectural CAD, not only satisfying laws such as the Building Standards Act, but if the flow of wind can be displayed visually according to the structure of the building, the value of architectural CAD will increase, It will be possible to meet the demand.

  The present invention has been made in view of the above circumstances, and the problem is that an architectural design program having a configuration suitable for conducting ventilation simulation, a recording medium storing the program, and an architectural CAD device in which the program is installed are provided. Is to provide.

In order to solve the above problems, an architectural design program according to the present invention is:
Computer
Means for inputting building data to create a floor plan represented by a plan view and / or a three-dimensional view;
Means for performing ventilation simulation using the created floor plan,
It is characterized by functioning as a means for displaying the result of the ventilation simulation superimposed on the floor plan.

  The operation and effect of the architectural design program with this configuration will be described. First, it has means for inputting building data, and provides a function for inputting building data such as walls, joinery, obstacles (stairs, furniture, etc.), floors, tatami mats, and the like. A floor plan represented by a plan view and / or a three-dimensional view can be created based on the building data. Moreover, it has a means for performing ventilation simulation, and the flow of wind in the room can be simulated under a predetermined condition. This simulation result can be displayed superimposed on the created floor plan, and the flow of the wind in the room can be grasped. Thereby, for example, it can be evaluated in advance whether there is no problem in terms of ventilation, and a floor plan design having a suitable structure in terms of ventilation is also possible. The floor plan for displaying the simulation result may be represented by a plan view or a three-dimensional view. Moreover, it may be possible to display both. As a result, it is possible to provide an architectural design program having a configuration suitable for performing ventilation simulation.

In the present invention, the floor plan has at least a first floor plan and a second floor plan,
Computer
Means for entering building data to create a first floor plan;
Means for dividing the input building data into a first group necessary for ventilation calculation and a second group unnecessary for ventilation calculation;
Means for creating a second floor plan based on the building data of the first group;
It is preferable to further cause the computer to function as a means for performing ventilation simulation using the created second floor plan.

  According to this configuration, the ventilation simulation is performed based on the second floor plan different from the first floor plan. The second floor plan is created based on building data necessary for ventilation calculation. Examples of building data unnecessary for ventilation calculation include tatami mats and pillars. By creating the second floor plan separately, even if floor plan editing (additional arrangement or deletion of joinery, etc.) is performed for simulation calculation, it will affect the original first floor plan. It is possible to perform simulations under various conditions without giving them.

  In the present invention, it is preferable that the computer further function as means for editing part or all of the building data with respect to the generated second floor plan.

  By providing such an editing function, it is possible to obtain, for example, arrangement of building data that improves the simulation result by trial and error, and it is possible to perform a floor plan with excellent ventilation function.

In the present invention, means for designating the direction of the wind acting on the building,
Means for determining the inflow / outflow of the wind at the opening represented in the second floor plan;
It is preferable to further cause the computer to function as a means for displaying inflow / outflow on the screen based on the determination result.

  According to this structure, it has the means to designate a wind direction, and it can hit a wind from arbitrary directions with respect to a building. By specifying the direction, the inflow / outflow of the wind at the opening shown in the second floor plan is determined. Here, the opening is an entrance, a window, a door for entering the room, a bran or the like. By displaying the inflow / outflow on the screen, the outline of the wind direction in the room can be recognized.

  In the present invention, it is preferable to further cause the computer to function as means for recognizing the opening area and the opening position of the opening based on the fitting type data and / or the fitting number data included in the input building data.

  By recognizing the opening area and opening position of the opening, it is possible to set the amount of air entering the building, and to perform accurate simulation on the state (direction and size) of the indoor wind it can.

  In the present invention, it is preferable to further cause the computer to function as a means for changing the opening area and the opening position of the opening.

  By making it possible to change the opening area and the opening position of the opening, for example, it is possible to simulate how the indoor ventilation state changes when the installation location and size of the entrance and the window are changed.

  In the present invention, it is preferable to further cause the computer to function as means for designating the position of the horizontal plane and / or the position of the vertical plane for visually displaying the wind flow calculated by the ventilation simulation.

  When the result of ventilation simulation is displayed on the screen, the ventilation state can be displayed in an easy-to-understand manner by visually displaying the flow of the wind on a specific surface. By designating the position of the horizontal plane, it is possible to display the wind flow at a specific height position in the room. Also, by specifying the position of the vertical plane, it is possible to display the wind flow at a specific vertical cross-sectional position in the room.

  In the present invention, when visually displaying the wind flow calculated by the ventilation simulation, the computer is further functioned as means for repeatedly generating and displaying particles in time series starting from the wind inflow opening. It is preferable.

  Various modes of visually displaying the wind flow are conceivable. Among them, it is possible to dynamically observe the actual wind flow by repeatedly generating particles in time series starting from the inflow opening of the wind (for example, a window or a front door). It can be displayed in a form that is easy to understand.

In the present invention, when visually displaying the wind flow calculated by the ventilation simulation, means for dividing the specified horizontal plane and / or vertical plane into meshes,
It is preferable to further cause the computer to function as means for repeatedly generating and displaying particles in time series starting from each divided mesh.

  According to this configuration, as another aspect for visually displaying the wind flow, a designated horizontal plane and / or vertical plane in the building is divided into meshes (for example, squares having a predetermined area). Starting from each mesh, particles are repeatedly generated in time series. Even in such a display mode, the actual wind flow can be dynamically observed, and the ventilation state can be displayed in a form that is easier to understand.

  In the present invention, it is preferable to further cause the computer to function as a means for three-dimensionally displaying the wind flow.

  By displaying in three dimensions, it is possible to simulate wind flow in a more realistic manner.

  In the present invention, it is preferable to further cause the computer to function as means for displaying the wind path in an overlapping manner on the floor plan.

  Various modes of displaying the simulation result superimposed on the floor plan can be considered. Among them, the wind flow (for example, an arrow or a line) is displayed in an overlapping manner so that the wind flow can be displayed in an easy-to-understand manner.

  In the present invention, it is preferable to further cause the computer to function as a means for displaying the wind velocity distribution superimposed on the floor plan.

  By displaying the wind speed distribution on the floor plan, it is possible to display the wind speed at any point in the building in an easy-to-understand manner.

  In the present invention, it is preferable to further cause the computer to function as means for displaying the wind velocity vector superimposed on the floor plan.

  By displaying the wind vector (wind direction and strength) in an overlapping manner on the floor plan, the wind vector at an arbitrary location in the building can be displayed in an easy-to-understand manner.

  In the present invention, it is preferable to further cause the computer to function as means for taking in wind vector data included in the AMeDAS data.

  According to this configuration, wind vector data at an arbitrary time point (date, time) can be taken from a recording medium such as a CD-ROM, and data closer to the actual situation can be obtained than the operator arbitrarily sets. It can be used and the accuracy of ventilation simulation can be improved.

  The architectural design program according to the present invention can be stored in an appropriate recording medium such as a CD-ROM, a hard disk, or a memory.

  The architectural design program according to the present invention can be installed in a computer such as a personal computer to cause the computer to function as an architectural CAD device.

  An architectural design program according to the present invention and an architectural CAD apparatus in which the architectural design program is installed will be described with reference to the drawings. FIG.1 and FIG.2 is a functional block diagram which shows the structure of a building CAD apparatus.

<Architecture CAD device>
FIG. 1 is a diagram showing a schematic configuration of an architectural CAD apparatus K. The architectural CAD apparatus K can be configured by installing an architectural design program 1 on a computer such as a personal computer. The architectural design program 1 is roughly composed of architectural design means 2 and ventilation simulation means 3 when functionally divided. The architectural design means 2 provides a function provided by a conventional architectural design program (architectural CAD), and can perform floor plan design of buildings by inputting various building data. The ventilation simulation means 3 provides a function newly added to the conventional architectural design program 1 and can analyze the flow of wind in the room by simulation.

  The display device 4 is a monitor for performing floor plan design using the building design program 1 and displaying the result of ventilation simulation on the floor plan. As the display device 4, various types such as a liquid crystal monitor and a CRT monitor can be used. The input device 5 is a means for inputting various data and giving various commands in order to perform architectural design and ventilation simulation, and is configured by a keyboard, a mouse, and the like.

  The input unit 6 has a function of reading AMeDAS data from a recording medium such as a CD-ROM, and the read AMeDAS data is delivered to the ventilation simulation unit 3. The AMeDAS data includes wind direction and wind magnitude (vector data) on a specific date or time. It is also possible to perform ventilation simulation using this wind vector data.

<Detailed functional block diagram>
Next, detailed functions of the building CAD apparatus shown in FIG. 1 will be described with reference to the block diagram of FIG. The first floor plan creation means 10 provides a function of creating a first floor plan. A 1st floor plan is a figure showing the floor plan of each room inside a building, for example, as shown in FIG. Generally, it is expressed as a two-dimensional plan view, but can also be displayed as a three-dimensional solid view. In order to create the first floor plan, it is necessary to input building data constituting the floor plan, and the building data input means 12 is provided to provide a function for inputting the building data. The first floor plan corresponds to a so-called plan diagram, and is presented to the customer as a floor plan configuration according to the customer's request.

  As for the building data, various items are stored in the building data storage unit 30 in advance. Examples of the building data include data necessary for configuring a room such as a floor, a wall, a ceiling, an opening, and an obstacle (such as stairs and furniture). There are two types of openings, such as windows, entrances, and ventilating fans, which are arranged at the boundary with the outside, and items such as brans, shojis, and doors of rooms. The building data is stored in the building data storage unit 30, but the contents of the stored building data can be appropriately added, updated, or deleted.

  The plan view displayed in FIG. 4 is two-dimensional data. However, it is necessary to perform switching display by a three-dimensional view, and the building data constituting the room each has three-dimensional data representing the spatial dimensions. ing. For example, in the case of building data represented by a simple cube, it becomes the coordinates and height dimension of the floor on which it is placed. Alternatively, it may further have vertical and horizontal length dimensions. In short, when each building data is arranged as a floor plan, spatial coordinate data when the space is three-dimensionally occupied is held. Each building data is given unique identification data in advance. The created first floor plan is stored in the floor plan data storage unit 31. Data related to building data constituting the floor plan is also stored.

  The second floor plan creation means 11 reads data necessary for ventilation calculation from the first floor plan data created by the first floor plan creation means 10, and uses the second floor plan to be used for ventilation calculation. Create When data necessary for ventilation calculation is read, the contents set in the group setting means 13 are referred to. That is, the classification setting is performed in advance for the first group necessary for the ventilation calculation and the second group unnecessary for the ventilation calculation regarding the building data. The first group includes floors, walls, ceilings, openings (such as windows and entrances), obstacles (such as stairs and furniture), and the like. The second group includes pillars and tatami mats. In addition, the finishing material information is included in the wall, floor, and ceiling, and this finishing material information belongs to the second group. Whether the building data belongs to the first group or the second group may be determined in advance, or a grouping may be set each time.

  As described above, the building data included in the second group necessary for the ventilation calculation is read, and the second floor plan is created. The specific data content to be read is the spatial coordinate data held by each building data as described above.

  The editing unit 14 provides a function of editing the created second floor plan. Editing refers to an operation for changing the floor plan configuration, such as additional arrangement, position change, and deletion of joinery. By enabling editing, it is possible to perform simulation while correcting the floor plan configuration and find an optimal solution. The second floor plan is used for editing while performing trial and error. By performing this editing operation, the first floor plan is not affected at all. Therefore, a ventilation simulation can be performed using the second floor plan in a state where the first floor plan as the plan diagram is held.

  The wind vector designating unit 15 provides a function of designating a wind vector when performing a ventilation simulation. That is, it is necessary to set a wind vector in advance before performing the ventilation simulation. As main functions for that purpose, two functions of a wind direction specifying function 15a and a wind force specifying function 15b are provided. It is possible to specify the wind direction and wind force (wind intensity or wind speed), respectively. In order to perform a ventilation simulation, the wind force may be a fixed value set in advance, and only the wind direction may be designated. The direction of the wind can be arbitrarily specified in the range of east, west, south, and north (360 °).

  The wind vector may be specified by the operator on the screen, but it may be configured such that AMeDAS data can be acquired and automatically set. For this purpose, the function of the AMeDAS data acquisition means 16 is provided. Yes. By using this AMeDAS data, it is possible to acquire data at a specific place and a specific date and time, and perform a more accurate and realistic ventilation simulation.

  When the wind vector is designated, the inflow / outflow determination means 17 determines the inflow / outflow direction of the wind at the opening (window, entrance, etc.). That is, it is determined whether the direction is that the wind enters or exits. The inflow / outflow display means 18 provides a function of displaying the inflow / outflow direction based on the determination result by the inflow / outflow determination means 17. Specifically, the inflow / outflow direction is displayed by the combining means 19 so as to overlap the second floor plan. Such a display can be displayed on the screen by an arrow, for example. Thereby, the inflow / outflow direction can be easily recognized on the screen.

  The simulation calculation means 20 provides a function for calculating the wind flow in the room under the set conditions. As described above, the set conditions are vector data of wind vectors and building data constituting the second floor plan. As a theory on which calculation is performed, there is a theory using fluid dynamics (particularly numerical fluid dynamics).

  The particle generation means 20a provides a function of generating a calculation result as a particle movement when the wind flow in the room is expressed as the particle movement. The streamline generating means 20b provides a function of generating a calculation result as a streamline when the wind flow in the room is expressed in the form of a streamline. The movement and streamlines of the particles as described above can be displayed superimposed on the second floor plan by the function of the synthesis means 19.

  The opening recognizing means 21 is means for recognizing the opening area and opening position of the opening based on the contents of the building data. When displaying the calculation result, it is performed based on the recognized opening area and opening position. The opening changing means 22 provides a function of changing the opening area and opening position of the opening. With this function, simulation can be performed while changing various conditions.

  The position specifying means 23 provides a function for specifying the position when the calculation result is displayed on the second floor plan. The position can be specified for the height position on the horizontal plane and the position of the vertical plane. Therefore, when it is desired to display the wind flow on the horizontal plane 1 m high from the floor, it is possible to display the wind flow by overlapping the floor plan by specifying the position.

  The mesh setting means 24 sets the size of the mesh when the room is divided into meshes in order to perform ventilation simulation. As will be described in detail later, the mesh is two-dimensionally square or rectangular (three-dimensionally cubic or rectangular parallelepiped), and the room is divided by a large number of meshes of a predetermined size. The wind flow is calculated based on the divided mesh. The finer the mesh, the finer the wind flow can be displayed.

  The starting point setting means 25 provides a function for setting the start point of the wind flow in order to perform a ventilation simulation. As will be described in detail later, for example, a plurality of starting points can be set at a window in a direction in which the wind flows, and the flow of wind from the starting points can be calculated and displayed. The number of starting points can be arbitrarily set. If the number of starting points is increased, the wind flow can be displayed more finely.

  When the wind flow is displayed as the calculation result of the ventilation simulation, the moving image file generating unit 26 can display the wind flow as a moving image, and generates a moving image file for that purpose. Thereby, the actual wind movement can be displayed in a more realistic form. Further, the simulation result can be stored in the simulation result storage unit 32. The file format in the case of saving as a moving image can be an appropriate method such as AVI or WMV.

  The dimension setting means 16 can set whether to display an image such as a floor plan to be displayed on the display device 4 in two dimensions or as a three-dimensional stereoscopic diagram. Since the building data and the like are expressed by three-dimensional data, switching between two-dimensional and three-dimensional display can be performed at an arbitrary timing. For example, the two can be switched by clicking a button displayed on the screen. Therefore, it is possible to appropriately switch between two-dimensional and three-dimensional display for the simulation result.

  The display data generating means 28 generates display data for displaying a floor plan and a simulation result on the display device 4, and can be constituted by a display substrate such as a known video card.

<Simulation procedure and specific screen configuration example>
Next, an outline procedure until the ventilation simulation is performed will be described. FIG. 3 is a flowchart showing a schematic procedure. First, referring to FIG. 4, a description will be given of creation of a normal first floor plan. This first floor plan is a so-called plan diagram, which is presented to the customer as a plan. As a procedure for creating this floor plan, a procedure by a well-known architectural CAD can be adopted. That is, first, the room is partitioned into rooms. Then, a room is allocated to the area surrounded by the wall. For example, Western-style rooms, Japanese-style rooms, kitchens, living rooms, bathrooms, and toilets. Next, the building data is set in order. First, select the type of fittings (doors, brans, shojis, etc.) attached to windows, doorways, partitions, etc. Next, stairs and tatami mats are arranged in the building data. Finally, in the building data, parts (kitchen, toilet, bath, wash basin, furniture if necessary) are arranged.

  For these building data, various items are prepared in advance on the screen according to the type of fittings, and an appropriate item can be selected from them. The selected item can be pasted on the screen at an appropriate location. The items are stored in the building data storage unit 30, and new items can be arbitrarily added, changed, or deleted. Each building data has three-dimensional data (vertical and horizontal height) as unique data so that it can be displayed three-dimensionally. When an item is selected and pasted on the screen, coordinate data (xyz coordinates) with respect to a reference is given as building data in addition to the above-described three-dimensional data.

  The first floor plan created as described above is stored in the floor plan data storage unit 31 (S1, S2). When ventilation simulation is performed for the created floor plan, the simulation button 40 shown on the screen is clicked or the simulation function is selected from the menu to display the simulation screen. Transition (S3). If the simulation button 40 is clicked, first, necessary data is read from the created first floor plan, and a second floor plan is created (S4, S5). In this case, building data unnecessary for the simulation is not read based on the setting contents by the group setting means 13. Only building data belonging to the first group necessary for the simulation is read.

  In addition, when building data is read, the size data is not inherited strictly, but data in a simplified form is inherited for easy calculation. For example, as described later, when the room is divided into meshes, the dimension value is deformed so as to be a multiple of the mesh pitch. In addition, in the case of building data that is not simple shape data, it is converted into simplified shape data and the data is taken over. The second floor plan created as described above is shown in FIG. As can be seen from a comparison between FIG. 5 and FIG. 4, in FIG. 5, it is understood that portions unnecessary for the simulation are deleted and simplified. The members such as furniture displayed in FIG. 4 are not displayed in FIG.

  Next, a wind vector is designated (S6). That is, the designation of the wind direction and the wind speed (wind strength) is performed. In the configuration example illustrated in FIG. 5, a configuration example in which designation is performed based on AMeDAS data is illustrated. In the display area 41, data relating to each joinery is displayed. Specifically, the type, attribute, and direction of the joinery included in the second floor plan are displayed. Types include pulling, partition opening, and door opening. The attributes include an outer joinery, an inner joinery, and a partition. The outer joinery corresponds to the joinery located on the exterior of the building. The direction indicates the direction in which the wind enters, and “ON” or “OUT” is displayed. This is only displayed for exterior joinery. “On” indicates the direction in which the wind enters the building. “Out” indicates the direction in which the wind goes out of the building (S7, S8).

  This is because the function of the inflow / outflow determination means 17 shown in FIG. 2 determines the direction of the wind in each outer fitting, and the function of the inflow / outflow display means 17 superimposes the direction of the wind on the second floor plan. It is what is displayed.

  In FIG. 5, “ON” and “OUT” indicating the direction of the wind are also displayed in the second floor plan. Specifically, a character display 49 and an arrow display 50 of “ON” and “OUT” are displayed. Such display is based on the functions of the inflow / outflow determination means 17 and the inflow / outflow display means 18, and when a wind vector is designated, each opening (outside fitting) is based on the designated data content. It is determined whether the direction of the wind is “On” or “Out”. In order to display the direction in an easy-to-understand manner, the arrow is displayed so as to be perpendicular to the wall surface. However, the direction of the arrow may be a direction that matches the direction of the wind.

  The display area 42 is an area for designating a place where the building shown in the second floor plan is constructed. The designation can be made on a prefecture basis. In the display area 43, wind vector data relating to the place specified in the display area 42 is displayed in units of months, and a month for which simulation is desired is selected from the data. The display area 43 displays data relating to the moon, wind direction, and wind speed, and this data is data downloaded via the Internet as AMeDAS data. The acquisition of AMeDAS data is based on the function of the AMeDAS data acquisition unit 16 in FIG. 2, and the designation of the wind direction and the wind speed is provided based on the function of the wind vector designation unit 15.

  The wind vector display area 44 is an area in which the wind vectors designated in the display areas 42 and 43 are displayed visually in an easily understandable manner. Specifically, it is composed of a pointer 44a indicating the direction of the vector and a wind speed bar 44b indicating the magnitude of the wind speed. Further, specific numerical values are also displayed in the display frame 44c. The display area 45 is an area indicating the north direction (degrees / minutes / seconds).

  In the mesh setting area 46, the mesh division pitch is displayed. When performing the ventilation simulation, the size in the (X, Y, Z) direction when the room is divided by the mesh can be set. In the display example, X = Y = 250 mm and Z = 300 mm, but the setting can be changed as appropriate. Each dimension of X, Y, and Z may be set to the same numerical value, or all of XYZ may be set to different numerical values. This function is provided by the function of the mesh setting means 24.

  The height setting area 47 is an area for setting the height at which the calculation result of the ventilation simulation is displayed. In this example, 1500 mm is set as the height position from the floor, and the numerical value can be appropriately changed. This is provided by the function of the position specifying means 23. As a result, when simulation is performed, the wind flow at a position where the height from the floor is 1500 mm is displayed (in the case of two-dimensional display). Although not shown in FIG. 5, it is preferable to be able to designate a cross-sectional position in the vertical direction. As a result, not only the wind flow in the horizontal plane but also the wind flow in the vertical plane can be displayed. Accordingly, it becomes possible to visually grasp the difference in wind flow between the position close to the floor and the vicinity of the ceiling.

  In the coordinate display area 48, the coordinates of the mouse are displayed in X and Y coordinates. Although the origin 52 is set to a position as shown in FIG. 5, the position of the origin 52 can be changed as appropriate. The L and D coordinates are used when a member such as joinery is added to the second floor plan. The member is specified by specifying two points, a starting point and an ending point. L is a length from the start point to the end point, and D is a numerical value for inputting the end point angle with respect to the start point. That is, after clicking the starting point with a mouse, additional values such as joinery can be placed by inputting the values of L and D.

  In the grid display area 49, the pitch of the grid (the grid shown on the screen of FIG. 5) and the number of divisions of the grid are displayed. If both X and Y have a pitch of 1000 mm and the number of divisions is 4, X = Y = 1000/4 is displayed. When the members are arranged using the mouse, the mouse is configured to snap (stick) according to the grid and the number of divisions. In the above example, the mouse moves digitally at a pitch of 250 mm for both X and Y. This configuration is the same on other display screens.

  The screen configuration example shown in FIG. 5 is a state in which the wind direction is designated to the southwest. When this wind direction is designated as southeast, the display mode is as shown in FIG.

  When the wind vector is designated as described above, calculation of ventilation simulation is started (S9). The calculation can be started by an appropriate method such as clicking a specific button with the mouse, clicking a specific icon, or selecting a simulation start item in the menu. Thereby, the calculation is performed by the function of the simulation calculation means 20, and the result is displayed on the screen.

<Display simulation results>
Here, a display mode in the case of displaying the calculation result will be described.

  FIG. 7A is a diagram schematically illustrating an example of the display. FIG. 7A (a) is a display example showing the flow of wind on a horizontal plane, and (b) is a display example showing the flow of wind on a vertical plane. In this example, five starting points (particles) are set at the position of the window 61 as an example of an exterior fitting (the figure number 60a). The setting of the starting point is based on the function of the starting point setting means 25, and the number of starting points and the pitch of the starting points are preferably configured to be arbitrarily changeable. The window 61 is in a state where the wind flows in, and the window 62 is in a state where the wind flows out. The simulation result can be displayed by repeatedly generating particles in time series. In the example of the figure, they are repeatedly displayed in the order of reference numerals 60c, 60b, 60a. Of course, you may make it display all the particle | grains shown with the code | symbol 60c, 60b, 60a simultaneously.

  FIG. 7B shows a display when the particles are actually moved in time series. Note that the number of particles is considerably larger than in the case of FIG. 7A. The display changes in the order of (a) (b) (c) (d) (e) in time series. When the first particle row 60d moves to some extent, the next particle row 60e is generated and moved in the same manner, and further the next particle row 60f is generated. By repeatedly generating particles in this way, the wind flow can be dynamically displayed, and this motion can be saved in the form of a moving image file.

  Also, when displaying the wind flow as particles, not only simply move the round liquid particles, but also change the color (or shape, etc.) of the particles so that the magnitude of the speed is also displayed. ing. For example, six colors are prepared as particle color displays, and the speed can be increased to about six levels. Alternatively, the speed display may be performed according to the shape and display mode of the particles (black painting, double circle, white outline, etc.). In the display example of FIG. 7B, the magnitude of the speed is displayed step by step by changing the shape of the particles.

  FIG. 8A is a diagram showing another display mode. This example shows a simulation performed by dividing the room into meshes by the function of the mesh setting means 24. Particles 63a are displayed as start points in the areas divided into meshes. The number of particles 63a is basically the same as the number of meshes. Here, by repeatedly generating particles in time series in accordance with the wind flow, it can be displayed as a wind flow. 7A and 7B are different in that the position of the window is the start point, whereas in FIG. 8A, the entire room is the start point. FIG. 8B shows an example of display based on the same gist as FIG. 7B.

  9A and 9B are diagrams showing the results of simulation in the second floor plan shown in FIG. As the display mode, the flow of the wind is displayed by moving the particles in time series as in the display mode shown in FIGS. 7A and 8A. For convenience of illustration, in FIGS. 9A and 9B, all of the particles that are sequentially displayed in time series are displayed, but actually, the display mode is the same as that described in FIGS. 7B and 8B. be able to.

<3D display>
Next, a display mode when performing three-dimensional display will be described. The method described so far is a method of displaying particles superimposed on a floor plan displayed as a two-dimensional plan view. However, the floor plan is displayed as a three-dimensional solid view, and the particles are displayed in time series. May be generated and displayed. An example of this display is shown in FIG. In this case, it is preferable to display the wall, ceiling, floor, joinery, etc. in a translucent state. In the case of three-dimensional display, walls and floors are obstructive in order to visualize the flow of wind. By making them semi-transparent, it is possible to display indoor ventilation conditions in an easy-to-understand manner. The three-dimensional display includes a perspective display such as a bird's-eye view, a cross-sectional display, and an elevation display, but is not limited to a specific display format.

<Display by streamline>
In the embodiments so far, the display mode based on the movement of particles has been described. Instead, it can be displayed by streamlines. The display examples are shown in FIGS. FIG. 11 is an example in which a plurality of starting points are set at the position of the opening (outer fitting), as described with reference to FIG. 7, and the streamline is drawn with the starting points as starting points. That is, the flow of the wind can be displayed by sequentially moving the tip of the streamline with the flow of time. FIG. 12 is a display example when the room described in FIG. 8 is divided into meshes, and it can be seen that streamlines are drawn starting from each mesh.

<Display by vector>
FIG. 13 is a diagram schematically illustrating another display mode when the flow of wind is displayed. In this display example, particles are sequentially generated and displayed in a three-dimensional display in time series, and a vector (arrow) indicating wind intensity and wind speed is displayed together with each particle. With this vector, the wind vector in the room can be easily grasped visually. Although three-dimensional display is performed in FIG. 13, this can also be applied to the case where two-dimensional display is performed. Vectors may be displayed together with streamlines instead of particles.

<Change of opening setting>
Next, a screen configuration example in the case of changing the setting of the opening condition when performing the simulation will be described with reference to FIG. This screen can be displayed by, for example, clicking a specific icon on the screen displaying the second floor plan. In addition, since one floor plan has a large number of openings, it is possible to individually specify which opening is to be changed.

  In FIG. 14A, the setting area 70 can be selected stepwise from fully open to fully closed. In the setting area 71, such a setting method is provided, and numerical values of the opening height and the opening width can be individually set. The set contents are displayed in the display area 72 such as the upper end of the opening, the opening height, and the opening width. 14B, 14C, 14D, and 14E show various setting change examples. For example, it is possible to perform a simulation with a half-opened window or entrance.

<Position>
When the simulation result is displayed two-dimensionally on a horizontal plane or a vertical plane, it is possible to specify in advance which horizontal plane or vertical plane the wind flow is to be displayed. As shown in FIG. 15, it is possible to specify the height and cross-sectional position for confirming the simulation result. Thereby, the simulation result in an arbitrary position can be known.

<Another embodiment>
Although various embodiments have been described above, an architectural design program can be configured by arbitrarily combining these embodiments.

Conceptual diagram showing the schematic configuration of a building CAD device Block diagram showing detailed functions of architectural CAD equipment Flow chart showing the general procedure when performing ventilation simulation The figure which shows the creation example of the first floor plan Figure showing an example of creating a second floor plan (1) Figure showing an example of creating a second floor plan (2) Diagram (1) schematically showing the display mode of the simulation result FIG. 7A is a diagram showing simulation results in time series. Diagram (2) schematically showing the display form of the simulation result FIG. 8A is a diagram showing simulation results in time series. The figure which shows the display mode of the simulation result The figure which shows the display mode of the simulation result The figure which shows the example of a display which displayed the simulation result in three dimensions The figure which shows the example which displayed the flow of the wind with the streamline The figure which shows the example which displayed the flow of the wind with the streamline The figure which shows the example which displayed the flow of the wind with the vector The figure which shows the example of a screen structure when changing the setting of an opening part The figure which shows the example of a screen structure for designating the position which displays a simulation result

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Architectural design program 2 Architectural design means 3 Ventilation simulation means 4 Display apparatus 10 1st floor plan creation means 11 2nd floor plan creation means 12 Building data input means 13 Group setting means 14 Editing means 15 Wind vector designation means 16 AMeDAS Data acquisition means 17 Inflow / outflow determination means 18 Inflow / outflow display means 19 Synthesis means 20 Simulation calculation means 20a Particle generation means 20b Stream line generation means 21 Opening recognition means 22 Opening change means 23 Position designation means 24 Mesh setting means 25 Starting point setting Means 26 moving picture file generating means 27 dimension setting means 28 display data generating means

Claims (15)

Computer
Means for inputting building data to create a floor plan represented by a plan view and / or a three-dimensional view;
Means for performing ventilation simulation using the created floor plan,
An architectural design program for functioning as a means for displaying the result of ventilation simulation superimposed on a floor plan ,
The floor plan has at least a first floor plan and a second floor plan;
Means for entering building data to create a first floor plan;
Means for dividing the input building data into a first group necessary for ventilation calculation and a second group unnecessary for ventilation calculation;
Means for creating a second floor plan based on the building data of the first group;
An architectural design program for further causing a computer to function as a means for performing ventilation simulation using the created second floor plan. The architectural design program according to claim 1, further causing the computer to function as means for editing part or all of the building data with respect to the generated second floor plan. Means to specify the direction of the wind acting on the building,
Means for determining the inflow / outflow of the wind at the opening represented in the second floor plan;
The architectural design program according to claim 2, further causing the computer to function as means for displaying inflow / outflow on the screen based on the determination result. The architectural design program according to claim 3, further causing the computer to function as means for recognizing an opening area and an opening position of the opening based on joinery type data and / or joinery number data included in the input building data. . The architectural design program according to claim 3 or 4, further causing the computer to function as a means for changing an opening area and an opening position of the opening. The flow of the calculated wind by ventilation simulation is visually displayed, it means for specifying a position of the position and / or the vertical plane of the horizontal surface, yet according to any one of claims 1 to 5 which causes a computer to function as Architectural design program. When the wind flow calculated by the ventilation simulation is visually displayed, the computer is further functioned as means for repeatedly generating and displaying particles in time series starting from the inflow opening of the wind . 7. The architectural design program according to any one of 6 above. Means for dividing a specified horizontal plane and / or vertical plane into a mesh when visually displaying the wind flow calculated by the ventilation simulation;
The architectural design program according to any one of claims 1 to 7 , further causing the computer to function as means for repeatedly generating and displaying particles in time series starting from each divided mesh. The architectural design program according to any one of claims 6 to 8 , further causing the computer to function as means for three-dimensionally displaying a wind flow. The architectural design program according to any one of claims 1 to 9 , further causing the computer to function as means for displaying a wind path superimposed on a floor plan. The architectural design program according to any one of claims 1 to 10 , further causing the computer to function as means for displaying the wind velocity distribution superimposed on the floor plan. The architectural design program according to any one of claims 1 to 11 , further causing the computer to function as means for displaying a wind velocity vector superimposed on a floor plan. The architectural design program according to any one of claims 1 to 12 , further causing the computer to function as means for taking in wind vector data included in the AMeDAS data. Recording medium storing architectural design program according to any one of claims 1 to 13. An architectural CAD device in which the architectural design program according to any one of claims 1 to 13 is installed in a computer.

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