JP4141537B2 - Architectural CAD system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a CAD system for designing a building, and more particularly to a building CAD system capable of calculating a load applied to an environment by a building to be designed.
[0002]
[Prior art]
In recent years, for the purpose of protecting the global environment, there is an increasing tendency to limit the amount of carbon dioxide emitted as a result of various industrial activities.
Since various buildings such as houses and their components are also industrial products, the production of carbon dioxide is inevitable, so not only the essential performance and production cost are involved in the design. Considering how to minimize carbon dioxide generation for the protection of the global environment.
[0003]
[Problems to be solved by the invention]
However, the introduction of carbon dioxide generation as a part of the design conditions has not been done in the past, and it is slightly measured afterwards how much carbon dioxide is produced as a result of housing production. Stayed in.
[0004]
That is, the carbon dioxide generation amount is not considered as part of the design conditions, and naturally, a method for evaluating the carbon dioxide generation amount at the design stage has not been developed.
[0005]
The present invention has been made in view of such circumstances, and an architectural CAD system capable of performing environmental load prediction evaluation by calculating the amount of carbon dioxide generated based on design data of a target building. And it aims at providing a building design method.
[0006]
[Means for Solving the Problems]
According to one aspect of the present invention, a building CAD system used in performing building design, the amount used is different parts depending on the size of the building, per unit area in the case of using the component The energy consumption per unit of equipment having a fixed shape and size is defined, and the energy consumption per unit when the equipment is used is defined. Alternatively, a part master data storage unit that is preliminarily associated with the design information including the shape of the equipment, a drawing unit that obtains drawing data by drawing a frame part of the building, and the part master Equipment placement unit that obtains equipment placement data by placing equipment to be installed in the building based on the equipment data stored in the data storage unit , Calculating the area of the projection of the part constituting the housing part from the drawing data, and for the area constituting the part stored in the part master data storage unit with respect to the area of the projection Multiply the energy consumption per unit area to calculate the energy consumption based on the projection map, and obtain the quantity of equipment used from the equipment arrangement data. Second energy consumption calculation for calculating the energy consumption by the quantity of equipment by multiplying the quantity of goods by the energy consumption per equipment stored in the parts master data storage unit And a result obtained by summing the energy consumption by the projection map and the energy consumption by the quantity of the equipment by multiplying by a predetermined coefficient, And carbon dioxide generation amount calculating unit for calculating a carbon oxide emissions, characterized by comprising a display unit for displaying the emission amount of carbon dioxide calculated in the emission amount of carbon dioxide calculator.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an architectural CAD system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the embodiment. In this figure, reference numeral 1 denotes a central processing unit. Reference numeral 1a denotes a building design unit that designs a building, and 1b denotes a temporary storage unit that temporarily stores data of the designed building. Reference numeral 11 denotes an environmental load calculation unit, an energy amount calculation unit 1c that calculates the energy consumption amount of the building designed by the building design unit 1a, and carbon dioxide that calculates the amount of carbon dioxide generated from the energy consumption amount. It consists of a carbon generation amount calculation unit 1d and a projection drawing creation unit 1e that creates a projection drawing of a building stored in the temporary storage unit 1b.
[0012]
Reference numeral 1f is an input / output interface for inputting / outputting data between the central processing unit 1 and an external device. The code | symbol 2 is a memory | storage part in which the components data used when designing a building are memorize | stored. Reference numeral 3 denotes a display unit such as a display, and reference numeral 4 denotes an input unit composed of a keyboard and a mouse.
[0013]
Next, with reference to FIGS. 1 and 2, an operation of designing a building using a building CAD system and calculating the amount of energy consumed will be described.
FIG. 2 is a flowchart showing the operation of building design and energy consumption calculation.
First, the building design unit 1a designs a building frame part (step S1). The design of the frame part here refers to the basic design of the building, and the design of the framework and roof.
[0014]
The design of the housing part is performed by the operator specifying coordinates on the screen of the display unit 3 with the input unit 4 and drawing an outline drawing. At this time, the operator selects a necessary part from the part master stored in the storage unit 2 and designates which member is to be used for which part of the drawn outline drawing. Do the design.
[0015]
FIG. 3 is an explanatory diagram showing a table configuration of a component master stored in advance in the storage unit 2. As shown in this figure, it consists of four fields: part number, part name, design information, and energy consumption. The part number is an identification number for identifying the part, and is a number that is unique in the part master. The part name is an identification name that enables the operator to identify the part. In the parts master, all parts constituting the building such as roofing materials, wall materials, flooring materials, fittings, and air conditioning equipment are stored. The design information is information necessary for designing the shape, specification, etc. of the part, and the operator performs design work based on this information.
[0016]
The energy consumption is the amount of energy consumed directly or indirectly by the part. Also, this energy consumption is different from the amount used depending on the size of the building such as roofing material, the energy consumption per unit area is stored, and the one whose shape is fixed like fittings, The amount of energy consumed per part is stored. Furthermore, the energy consumption per year is memorize | stored about what consumes energy at the time of operation like an air conditioning equipment.
[0017]
By this operation, the housing part is designed, and the data in which the parts are drawn and arranged is stored in the temporary storage unit 1b.
[0018]
Next, when the design of the building frame portion is completed, the building design unit 1a displays an inquiry to the operator as to whether or not to calculate the energy amount at this time on the display unit 3 ( Step S2). In response to this inquiry, the operator responds from the input unit 4 and, as a result, calculates the energy amount, the building design unit 1a calculates the energy amount to the energy amount calculation unit 1c. Give instructions. In response to this, the energy amount calculation unit 1c instructs the projection drawing creation unit 1e to create a projection drawing. The projection drawing creation unit 1e reads the building data stored in the temporary storage unit 1b at this point, creates a projection drawing for each part such as a floor, a roof, and a wall, and calculates the area (step). S3) and pass to the energy amount calculation unit 1c. The projection drawing is created from the externally projected outline drawing of each part.
[0019]
Subsequently, the energy amount calculation unit 1c stores the area of the projection drawing for each part received from the projection drawing creation part 1e and the part number of the member used for the part in the part table of the temporary storage unit 1b.
[0020]
FIG. 4 shows an example of this part table. As shown in this figure, the part table is composed of five fields: part name, used part number, area, energy consumption, and carbon dioxide generation amount.
[0021]
The energy amount calculation unit 1c reads the energy consumption per unit area corresponding to the used part number from the component master stored in the storage unit 2, calculates this value by multiplying the projected area of the part, Store the energy consumption in the energy consumption field.
Also, the carbon dioxide generation amount calculation unit 1d calculates the carbon dioxide generation amount by multiplying the energy consumption calculated here by the coefficient A, and stores it in the carbon dioxide generation amount field.
Here, the coefficient A is “0.4” when the unit of energy consumption is [Mcal / m ² ] and the unit of carbon dioxide generation is [kg / m ² ].
The energy consumption amount and the carbon dioxide generation amount obtained by this operation are displayed on the display unit 3 (step S4).
[0022]
Next, the building design unit 1a displays an inquiry as to whether or not the energy amount calculated in step S4 is an appropriate value on the display unit 3 (step S5). In response to this inquiry, the operator responds from the input unit 4, and as a result, if the response is inappropriate, the building design unit 1 a returns to step S <b> 1, modifies the design contents in the frame portion, and the same Repeat the process.
[0023]
Next, when it is answered that it is appropriate in step S5, the building design unit 1a designs a detailed portion of the target building (step S6). At this time, similarly to the design of the housing part, by selecting a part from the part master stored in the storage unit 2 and arranging it at an appropriate position, the fittings such as fittings and air conditioners attached to the building are arranged. The position and quantity are materialized. The result is stored in the temporary storage unit 1b in the same manner as the design data of the housing part.
[0024]
Next, when the design of the detailed part of the building is completed, the building design unit 1a displays an inquiry as to whether or not to calculate the energy amount at this time on the display unit 3 to the operator ( Step S7). In response to this inquiry, the operator responds from the input unit 4 and, as a result, calculates the amount of energy, the building design unit 1a calculates the amount of energy to the energy amount calculation unit 1c. Give instructions. In response to this, the energy amount calculation unit 1c takes out the part numbers of the fittings and facilities from the design data stored in the temporary storage unit 1b at this time, and stores the component table classified for each part in the temporary storage unit 1b. Create in. FIG. 5 shows an example of this component table. As shown in this figure, the parts table is composed of four fields: a part number, the number of parts used, energy consumption, and carbon dioxide generation.
[0025]
The energy amount calculation unit 1c reads the energy consumption amount per piece corresponding to the component number from the component master stored in the storage unit 2, and obtains this value by multiplying the value by the quantity of the component. Is stored in the energy consumption field.
Also, the carbon dioxide generation amount calculation unit 1d calculates the carbon dioxide generation amount by multiplying the energy consumption calculated here by the coefficient A, and stores it in the carbon dioxide generation amount field.
Here, the coefficient A is “0.4” when the unit of energy consumption is [Mcal / m ² ] and the unit of carbon dioxide generation is [kg / m ² ].
The energy consumption amount and the carbon dioxide generation amount obtained by this operation are displayed on the display unit 3 (step S8).
[0026]
Next, the building design unit 1a displays an inquiry as to whether or not the energy amount calculated in step S8 is an appropriate value on the display unit 3 (step S9). In response to this inquiry, the operator responds from the input unit 4, and as a result, if the operator responds that it is inappropriate, the process returns to step S6, the design content of the detailed part is corrected, and the same processing is repeated.
[0027]
Next, in step S9, the building design work is completed when it is determined to be appropriate, and the building design unit 1a calculates the energy consumption and carbon dioxide generation amount of the building (step S10). ). Here, the total sum of the energy consumption amount and the carbon dioxide generation amount calculated in steps S4 and S8 is calculated, and the result is displayed on the display unit 3.
FIG. 6 is an example in which the calculation result displayed on the display unit 3 is displayed. As shown in this figure, the calculation result of the energy consumption and the carbon dioxide generation amount is displayed for each item, divided into the housing part and the equipment.
The calculation result may be printed not only on the display unit 3 but also by connecting a printing unit such as a printer to the input / output interface 1f.
[0028]
Next, the building design unit 1a displays an inquiry as to whether or not to change the design on the display unit 3 to the operator (step S11). On the other hand, the operator refers to the calculation result displayed in step S10, and makes a response as to whether or not to make a design change from the input unit 4, and if the result is that the design change is made, The object design unit 1a returns to step S1 and repeats the same process.
Each time the part is read from the part master without inquiring whether or not to calculate the energy amount in steps S2 and S7, the part table shown in FIG. 4 and the part table shown in FIG. 5 are added / updated. In step S10, the result may be displayed.
[0029]
In this way, since the projection of the frame part designed when designing the target building was created and the energy consumption was calculated from the result, it was a building with a complicated shape. However, the energy consumption can be calculated with high accuracy.
In addition, since the parts used in this building and their quantity are extracted from the design data of the target building and the energy consumption is calculated from the result, the energy consumption can be calculated accurately. it can.
[0030]
Further, according to the present invention, even when there is a design change or remodeling / extension, it is possible to easily perform the calculation again, so that the time required for environmental load prediction evaluation can be shortened.
[0031]
【The invention's effect】
As described above, according to the present invention, the environmental load of the building can be predicted at the initial stage of the building design, and the selection of materials and construction methods effective for reducing the environmental load can be performed. The effect of being able to design an appropriate building with a low load is obtained. Moreover, since it becomes difficult to enter human sensibility, it is possible to objectively calculate the environmental load. Furthermore, since it is not necessary to manually determine the area of the building and the quantity of used fittings, etc., it is possible to obtain an effect that the environmental load can be accurately calculated even for a building having a complicated shape.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.
FIG. 2 is a flowchart showing an operation of the embodiment shown in FIG. 1;
3 is an explanatory diagram showing a table configuration of a component master stored in a storage unit 2 shown in FIG.
FIG. 4 is an explanatory diagram showing a calculation result of an environmental load of a casing portion stored in a temporary storage unit 1b shown in FIG.
FIG. 5 is an explanatory diagram showing a calculation result of the environmental load of the equipment stored in the temporary storage unit 1b shown in FIG. 1;
6 is an explanatory diagram showing a calculation result of an environmental load of a building stored in a temporary storage unit 1b shown in FIG.
[Explanation of symbols]
1 ... Central processing unit,
1a ・ ・ Building Design Department,
1b .. Temporary storage unit,
1c .. Energy amount calculation part,
1d .. Carbon dioxide generation amount calculation part,
1e ... Projection drawing creation part,
1f ... I / O interface,
11. Environmental load calculation unit,
2 ... storage part,
3 ... display part,
4 ... Input unit.

Claims (1)

An architectural CAD system used when designing a building,
The amount used by the different sizes parts of the building, together with the energy consumption per unit area when using the component is defined, the shape and size are fixed fittings, the該装fixtures A part master data storage unit in which the energy consumption per one when used is defined, and the energy consumption and design information including the shape of the part or the equipment are stored in association with each other. ,
A drawing unit that obtains drawing data by drawing the frame part of the building;
Based on the equipment data stored in the parts master data storage unit, an equipment placement unit that obtains equipment placement data by placing equipment installed in the building; and
From the drawing data, the area of the projected view of the part constituting the housing part is calculated, and the unit of the part constituting the part stored in the part master data storage unit with respect to the area of the projected view A first energy consumption calculating unit that calculates the energy consumption according to the projection by multiplying the energy consumption per area;
The quantity of equipment used is obtained from the equipment arrangement data, and the quantity of equipment is multiplied by the energy consumption per equipment stored in the parts master data storage unit. A second energy consumption calculation unit for calculating energy consumption according to the quantity of equipment;
Calculate the carbon dioxide generation amount by calculating the carbon dioxide generation amount of the building by multiplying a result obtained by summing the energy consumption amount by the projection map and the energy consumption amount by the quantity of the equipment. And
An architectural CAD system comprising: a display unit that displays the carbon dioxide generation amount calculated by the carbon dioxide generation amount calculation unit .

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