JP2012098877A - Illuminance calculation system and illuminance calculation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve efficient work by eliminating errors in input and measurement when obtaining average illuminance in an illuminance calculation system for illumination design.SOLUTION: An illuminance calculation method includes: a step for using a CAD program to create an illuminance map illustration and illuminance map illustration data corresponding to the illustration; a step for storing the illustration and the data in a CAD database; a step for importing the illuminance map illustration data into an illuminance calculation database; a step for executing an illuminance calculation program to calculate a room index based on width and depth of a room subject to illuminance calculation in the illuminance map illustration data; a step for obtaining a utilization factor corresponding to a type of lighting fixture based on the calculated room index; and a step for obtaining computational illuminance of the room subject to illuminance calculation based on the data and the utilization factor relating to the lighting fixture.

Description

  The present invention relates to an illuminance calculation system and an illuminance calculation method, and in particular, an illuminance calculation system suitable for use in a building having a complicated structure of a building such as a nuclear power plant, and therefore illuminance calculation is complicated, and It relates to an illuminance calculation method.

  2. Description of the Related Art Conventionally, a system that performs illuminance calculation by an information processing device such as a computer for lighting design is known. For example, in Patent Document 1, the number of lighting fixtures and the arrangement of lighting fixtures are determined based on the floor area in the building, the target illuminance, and the total luminous flux of the lighting fixtures, and the ceiling surface, floor surface, and wall surface of the building are determined. The system which calculates the illumination intensity in is disclosed.

  On the other hand, in order to obtain the room illuminance, a method for obtaining the average illuminance based on the concept of illumination rate is widely known. The illumination rate is usually obtained by using a table called an illumination rate table provided by a luminaire manufacturer as a parameter for each reflectance at the room index, ceiling, wall, and floor.

  At this time, the room index Kr is obtained by the following (Formula 1).

Kr = (XY) / (X + Y) H (Formula 1)
Here, X is the frontage of the room, Y is the depth of the room, and H is the height from the work surface to the light source.

  Thus, the method of calculating | requiring indoor illumination intensity has description in the nonpatent literature 1, for example.

JP 2009-9475 A

“Electrical Engineering Handbook 6th Edition”, edited by the Institute of Electrical Engineers of Japan, February 2001, p. 1913-1916

As described above, in order to obtain the average illuminance, a room entrance and a depth in each building are required.
Hereinafter, the method for obtaining the frontage and depth according to the prior art will be described with reference to FIG.
FIG. 16 is a diagram for explaining a process for obtaining a room front and depth from an illuminance map according to the prior art.

  Consider a case in which the frontage and depth of a building room in the illuminance map shown in FIG. The illuminance map diagram is a diagram in which necessary illuminance is written on a diagram of a building that is a target of lighting design. In this case, it is not necessary to have illuminance data, and it is used as a drawing of the building.

  The target room has a complex hexagonal shape. As shown in FIG. 16B, the room is divided into two rectangles Ra and Rb, and the area of the rectangle Ra is Sa and the rectangle Rb. Let the area be Sb. When obtaining the areas Sa and Sb, a ruler is applied to the illuminance map, and the sides (Xa, Ya) and (Xb, Yb) of the rectangle are measured. And each area is calculated | required by the following (Formula 2) and (Formula 3).

Sa = Xa × Ya (Formula 2)
Sb = Xb × Yb (Formula 3)
The area S of the room is Sa + Sb. Therefore, the frontage X of the room is measured with a ruler, and the depth Y is obtained by the following (Equation 4) as shown in FIG.

Y = S / X (Formula 4)
Here, the frontage is a portion corresponding to the long side of the room. When the shape of the room becomes complicated, how to take the frontage depends largely on the know-how of the lighting designer.

  However, the building of a nuclear power plant is partitioned into many small rooms, unlike offices, and the shapes of these small rooms are complicated. In such a case, as described above, the manual work of measuring the area and frontage by applying a ruler to the illuminance map diagram is very troublesome, and input errors and measurement errors occur. There was a problem of doing.

  The present invention has been made to solve the above-mentioned problems, and its purpose is to eliminate input errors and measurement errors when obtaining an average illuminance in an illuminance calculation system for lighting design, and to make work more efficient. An object of the present invention is to provide an illumination calculation system that can be performed automatically.

  In the illuminance calculation system of the present invention, an illuminance map diagram and corresponding illuminance map diagram data are created in a CAD database by a CAD program and stored in the CAD database.

  Next, the illuminance map diagram data is imported into the illuminance database by executing the import module of the illuminance calculation program.

  Then, by executing the illuminance calculation program, the room index is calculated based on the frontage and depth of the room of the illuminance map diagram data to be subjected to the illuminance calculation.

  Next, based on the calculated room index, the lighting rate corresponding to the type of the lighting fixture is obtained, and the calculated illuminance of the room subject to the illuminance calculation is obtained based on the data on the lighting fixture and the lighting rate.

  ADVANTAGE OF THE INVENTION According to this invention, when calculating | requiring average illuminance in the illuminance calculation system for illumination design, the illuminance calculation system which can eliminate an input mistake and a measurement mistake and can work efficiently can be provided. .

It is a block diagram of the illumination intensity calculation system which concerns on one Embodiment of this invention. It is a figure explaining the relationship between a CAD program, a CAD database, an illumination calculation program, and an illumination calculation database. It is a figure which shows an example of an illumination intensity map figure. It is a flowchart which shows the process which calculates | requires the illumination intensity of each room. It is a figure explaining the process of calculating | requiring the frontage and depth of a room from the illumination intensity map figure by one Embodiment of this invention. It is a figure which shows the main screen of an illumination intensity calculation system. It is a figure which shows an illuminance map figure data import dialog. It is a figure which shows an illumination intensity calculation edit screen. It is a figure which shows an illumination rate edit screen. It is a figure which shows a building edit screen. It is a figure which shows a floor edit screen. It is a figure which shows a setting value edit screen. It is a figure which shows a light beam value edit screen. It is a figure which shows an illumination intensity calculation document display screen. It is a figure which shows an energy-saving statement display screen. It is a figure explaining the process of calculating | requiring the frontage and depth of a room from the illumination intensity map figure by a prior art.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a configuration diagram of an illuminance calculation system according to an embodiment of the present invention.
FIG. 2 is a diagram for explaining a relationship among a CAD program, a CAD database, an illuminance calculation program, and an illuminance calculation database.

  As shown in FIG. 1, the illuminance calculation system according to the present embodiment is a form in which an illuminance calculation program 200 and a CAD program 220 are installed and executed on a personal computer 100. In the present embodiment, the illuminance calculation program 200 and the CAD program 220 are executed by a single personal computer, but may be executed by separate personal computers.

  Further, as an example taken up in the present embodiment, it is assumed that the illuminance calculation of each room in the building of the nuclear power plant is performed.

  The personal computer 100 has a configuration in which a CPU (Central Processing Unit) 101, a memory 102, a network I / F 103, a graphic I / F 104, an input / output I / F 105, and an auxiliary storage device I / F 106 are coupled by a bus. .

  The CPU 101 controls each part of the personal computer 100 and loads the illuminance calculation program 200 and the CAD program 220 to the memory 102 and executes them.

  The memory 102 is a so-called main storage device, and is usually composed of a volatile memory such as a RAM, and stores an illuminance calculation program 200 and a CAD program 220 executed by the CPU 101 and data to be referred to.

  The network I / F 103 is an interface for connecting to the external network 50.

  The graphic I / F 104 is an interface for connecting a display device 20 such as an LCD (Liquid Crystal Display).

  The input / output I / F 105 is an interface for connecting an input / output device. In the example of FIG. 1, a keyboard 31 and a mouse 32 of a pointing device are connected.

  The auxiliary storage device I / F 106 is an interface for connecting an auxiliary storage device such as an HDD (Hard Disk Drive) 41 or a DVD drive (Digital Versatile Disk) 42.

  The HDD 41 has a large storage capacity, and stores an illuminance calculation program 200, a CAD program 220, an illuminance calculation database 210, and a CAD database 230 for executing the present embodiment.

  The DVD drive 42 is a device that writes data to an optical disk such as a DVD or CD, or reads data from the optical disk.

  As shown in FIG. 2, the illuminance calculation program 200 includes an illuminance calculation module 201, an energy saving calculation module 202, and an import module 203.

  The illuminance calculation module 201 is a module that calculates the illuminance in each room where lighting is installed.

  The energy saving calculation module 202 is a module that calculates energy saving lighting information.

  The import module 203 is a module that imports the illuminance map diagram data 232 as import data 214 so that the illuminance calculation program 200 can use it.

  The illuminance calculation database 210 is a database composed of tables referred to by the illuminance calculation program 200, and includes building data 211, instrument light flux value data 212, instrument illumination rate data 213, and import data 214.

  The building data 211 is data related to the building where the illuminance is installed.

  The fixture light flux value data 212 is data relating to the specifications of the lighting fixture such as the luminous flux of the lighting fixture.

  The appliance illumination rate data 213 is data indicating the correspondence between the room index and the illumination rate of each appliance.

  The import data 214 is data taken from the CAD map diagram data by the import module 203.

  The CAD program 220 refers to the CAD database 230 and is a program for designing a plant building.

  The CAD database 230 includes CAD data 231 and illuminance map diagram data 232.

  The CAD data 231 is data used as a basis for designing on a computer. The illuminance map diagram data 232 is data accompanying each illuminance map diagram.

  In the present embodiment, as shown in FIG. 2, the illuminance map diagram data 232 of the CAD database 230 is captured as import data 214 on the illuminance calculation database 210.

Next, an illuminance map diagram and a procedure for calculating data related thereto will be described with reference to FIGS.
FIG. 3 is a diagram illustrating an example of an illuminance map.

  Illuminance map FIG. 240 is a diagram in which the room number, the shape of the room, the entrance, and the arrangement of the lighting equipment can be understood as shown in FIG. The illuminance map diagram 240 includes illuminance map diagram data 232 as accompanying data.

  The illuminance map diagram data 232 includes a room number, a room name, an area, a frontage, a depth, and a design illuminance. The room number is a number assigned to the room, and the room name is a name assigned to the room. In this embodiment, the room number is “2” and the room name is “emergency DG”.

  The area is the area of each room determined by the area calculation function of the CAD program.

  The frontage is a distance that indicates one side of the room that is specified by the user and is obtained by the distance calculation function of the CAD program. Usually, the side with a door or doorway is specified.

  The depth is obtained by dividing the area by the frontage as determined by (Equation 4) described above, and is usually the short side of the room.

In this embodiment, the frontage is “2.1 m”, the depth is “6.3 m”, and the area is “13.2 m ² ”.

  The design illuminance is the illuminance required in the room. Normally, a plurality of illuminances are set in a nuclear power generation facility. In this embodiment, three types of illuminance are defined, and “general” indicates the illuminance of a lighting fixture that operates with an AC power supply, and “normal / non” indicates illumination that operates with an AC power supply. The illuminance of a lighting fixture that is always lit and that operates with an emergency power source such as a diesel generator in the facility when AC power is lost. Let it be illuminance.

Next, a procedure for obtaining calculated illuminance using a CAD program will be described with reference to FIGS.
FIG. 4 is a flowchart showing a process for obtaining the illuminance of each room.
FIG. 5 is a diagram illustrating a process of obtaining a room front and depth from an illuminance map according to an embodiment of the present invention.

  First, an illuminance map is created by the CAD program 220 (S01).

  And a room number, a room name, and design illumination intensity are input for every room (S02).

  Next, as shown in FIG. 5A, the area is calculated. First, the user divides an inner wall of a target room, and then obtains an area for each room using the area calculation function of the CAD program 220 for each room (S03).

  Next, as shown in FIG. 5B, a frontage is designated and a frontage is obtained by the distance calculation function of the CAD program 220 (S04). Further, the depth is obtained by dividing the area obtained in S02 by the frontage as shown in (Expression 4).

  Next, the illuminance map diagram data 232 is imported by the import module 203 of the illuminance calculation program 200 (S05).

  Next, the room index of the target room is calculated (S06). The room index is obtained by (Equation 1) when the depth and frontage are known.

  Next, the user inputs the type of lighting fixture and the number of lamps (S07). Here, the number of lamps is input for each of the three types of lighting fixtures. These are input from the illuminance calculation editing screen described later.

  Next, the illuminance calculation program 200 obtains an illumination rate based on the input lighting fixture type and room index (S08).

  Next, the illuminance calculation program 200 calculates the calculated illuminance based on the luminous flux method (S09). The calculated illuminance E by the luminous flux method is obtained by the following (Formula 5) (see Non-Patent Document 1).

E = (F · U · D · N) / A (Formula 5)
Here, F: luminous flux of the lamp, U: lighting rate of the appliance, D: maintenance rate, N: number of lamps, A: area of the room. F: The luminous flux of the lamp is the rated luminous flux per lamp. U: The lighting rate of the fixture is the lighting rate obtained in step S08 based on the type of lighting fixture and the room index. M: The maintenance rate is a rate for allowing the calculated illuminance on the work surface to be designed to be maintained even after using the appliance for a certain period. This value depends on the type of lamp, the structure of the lighting fixture, and the usage environment, as well as the lamp replacement and the structure of the lamp and the lighting fixture. This maintenance rate can be set for each room. N: Since the number of lamps is the number of lamps, it is equal to the number of lighting fixtures × the number of lamps per fixture. A: The area of the room is the area of each room represented by frontage × depth.

  Next, the user evaluates the calculated illuminance calculated in step S09 (S10). Since a desired design illuminance is captured for each room, it can be used as a criterion for evaluation.

  If the user evaluates the calculated illuminance and the result is OK, an illuminance calculation document is output (S11).

  If the user evaluates the calculated illuminance and the result is NG, the process returns to step S07, and the type of lighting fixture and the number of lamps are input again.

Next, a user interface of the illuminance calculation system according to the embodiment of the present invention will be described with reference to FIGS.
FIG. 6 is a diagram showing a main screen of the illuminance calculation system.
FIG. 7 is a diagram showing an illuminance map diagram data import dialog.
FIG. 8 is a diagram showing an illuminance calculation editing screen.
FIG. 9 is a diagram showing an illumination rate editing screen.
FIG. 10 is a diagram showing a building editing screen.
FIG. 11 is a diagram showing a floor edit screen.
FIG. 12 is a diagram showing a setting value editing screen.
FIG. 13 is a diagram showing a luminous flux value editing screen.
FIG. 14 is a diagram showing an illuminance calculation document display screen.
FIG. 15 is a diagram showing an energy saving calculation display screen.

  A main screen 300 of the illuminance calculation system is a screen for designating a building and a target floor and selecting each function.

  The building input menu 301 designates a building in the nuclear power plant. In the example of FIG. 6, CB means a control building.

  The floor number menu 302 designates the floor number in the building. In the example of FIG. 6, 1F (TP.12300) is designated. Here, T.W. P. 12300 is the ground surface height.

  The illuminance calculation edit button 303 is a button for calling an illuminance calculation edit screen.

  The building edit button 304 is a button for calling a building edit screen.

  The floor edit button 305 is a button for calling a floor edit screen.

  A set value edit button 306 is a button for calling a set value edit screen.

  The luminous flux value editing button 307 is a button for calling a luminous flux value editing screen.

  The illumination rate edit button 308 is a button for calling an illumination rate edit screen.

  The illuminance calculation sheet button 310 is a button for displaying an illuminance calculation sheet display screen.

  The energy saving calculation button 311 is a button for displaying an energy saving calculation display screen.

  The import button 320 is a button for calling the illuminance map diagram data import dialog 400.

  The illuminance map diagram data import dialog 400 is a dialog for designating a file name in order to import the illuminance map diagram data. As shown in FIG. 7, the illuminance map diagram data file name corresponding to the building and the number of floors is designated. To do. In the present embodiment, the file name generation rule is “CB1F (TP.12300)” in which a character string in which a building and a floor number are input is connected.

  The illuminance calculation editing screen 500 is a screen for displaying values taken in for illuminance calculation and inputting necessary values.

  The illuminance calculation editing screen 500 includes a main information display area 510, a room information display area 520, an accompanying information input area 530, an appliance information display input area 540, and a result display area 550, as shown in FIG.

  In the main information display area 510, information such as the building and the number of floors taken over from the main screen is displayed.

  In the room information display area 520, the imported data taken from the CAD map diagram data is displayed. In the example of FIG. 8, the room number: “2”, the room name: “emergency DG”, the design illuminance (general, normal / non-current, direct current): “200, 10, 1”, the frontage: “2.1”, Depth: “6.3” is displayed. The area is calculated from frontage × depth, and the area: “13.2” is displayed.

  In the accompanying information input area 530, data necessary for illuminance calculation and energy saving calculation can be input. In the example of FIG. 8, construction area: “a3”, maintenance rate: “0.6”, category: “4”, annual lighting lighting time: 4500, control correction coefficient: 1.0, type correction coefficient: 1.0 Illumination correction coefficient: 1.0 is input.

  Among these, the maintenance rate is used for illuminance calculation, and the category to illuminance correction coefficient is used for energy saving calculation.

  In the appliance information display input area 540, information inputted for each lighting fixture and a calculated value are displayed.

  In the example of FIG. 8, model: “C1”, height: “3.00”, room index: “0.53”, total luminous flux: “3520”, illumination rate: “0.30”, minimum number of lamps ( General, Normal / Non, DC): “5, 1, 1”, Number of lamps (General, Normal / Non, DC): “5, 1, 0”, Calculated illuminance (General, Normal / Non, DC): “ 239.4, 47.8, 0.0 "are displayed.

  The model is a code representing the model of the lighting fixture. The height is the height at which the luminaire is installed, and is used when determining the room index. The total luminous flux is the luminous flux of the lighting fixture. The illumination rate is the illumination rate of this type of luminaire and is determined from the room index. The minimum number of lamps is the minimum number of lamps of the lighting fixtures for satisfying the design illuminance displayed in the room information display area 520 for this type of lighting fixtures for general, normal / non-direct, and direct current lighting types. . The number of lights is the number of lights input by the user for each of the general, normal / non-current, and direct current illumination types. The calculated illuminance is calculated illuminance based on (Equation 5) based on the number of lights input by the user for each of the general, normal / non-direct, and direct current illumination types.

  The result display area 550 is an area for displaying the number of lights input by the user and the calculated calculated illuminance as a result. When the calculated illuminance does not satisfy the design illuminance displayed in the room information display area 520, for example, red. Display text and use as user warning.

  The main information display area 510, the room information display area 520, the accompanying information input area 530, the appliance information display input area 540, and the result display area 550 are combined into one page. A page move button 561 and a next page move button 563 are clicked. The page number is displayed in the page number display area 562.

  The lighting rate editing screen 600 is a screen showing the lighting rate for each room index for each type of lighting equipment. As shown in FIG. 9, the lighting equipment type display area 601, the room index input area 602, and the room index input. It consists of an illumination rate input area 603 corresponding to the area 602.

  The illumination rate editing screen 600 is displayed for each type of lighting fixture, and the type of lighting fixture to be displayed can be switched by a record movement button at the bottom of the screen. The room index is specified in the range from the minimum value (min) to the maximum value (max).

  In the appliance illumination rate data 213 in the illuminance calculation database 210, a correspondence table between the room index and the illumination rate reflecting the illumination rate editing screen 600 is created for each type of illumination fixture.

  As shown in FIG. 10, the building editing screen 700 is a screen for editing a building code and a name in association with each other. A table reflecting the building edit screen 700 is created in the building data 211 in the illuminance calculation database 210.

  As shown in FIG. 11, the floor editing screen 800 is a screen for editing a building code and the configuration of each floor in association with each other. A table reflecting the floor editing screen 800 is created in the building data 211 in the illuminance calculation database 210.

The setting value editing screen 900 is a screen for inputting various setting values, as shown in FIG. Although not particularly shown in FIG. 2, a table reflecting the setting value editing screen 900 is created in the illuminance calculation database 210.

  As shown in FIG. 13, the luminous flux value editing screen 1000 is a screen for editing by associating the specifications of the fixture for each type of lighting fixture.

  A table reflecting the luminous flux value editing screen 1000 is created in the instrument luminous flux value data 212 in the illuminance calculation database 210.

  As shown in FIG. 14, the illuminance calculation document display screen 1100 is a screen that displays the result of illuminance calculation for each room in detail.

  As shown in FIG. 15, the energy saving calculation display screen 1200 displays a lighting energy consumption coefficient (CEC / L, Coefficient of Energy Consumption for Lighting) that is an index of energy saving calculated for each room. It is a screen which displays the energy-saving statement which evaluates a degree.

  The illumination energy consumption coefficient CEC / L is given by the following (formula 6).

CEC / L = (ΣW _T × A × T × F _T ) / (ΣW _S × A × T × Q1 × Q2) (Formula 6)
Here, W _T : Lighting power consumption [W / m ² ], W _S : Standard lighting power consumption [W / m ² ], A: Room area [m ² ], T: Annual lighting lighting time [h / year] , F _T : Lighting equipment control correction coefficient, Q1: Lighting equipment type correction coefficient, and Q2: Illuminance correction coefficient of lighting equipment.

  Also, Σ means that each term is calculated for each lighting fixture used in the room, and the sum is taken.

DESCRIPTION OF SYMBOLS 100 ... Personal computer, 101 ... CPU (Central Processing Unit), 102 ... Memory, 103 ... Network I / F, 104 ... Graphic I / F, 105 ... Input / output I / F, 106 ... Auxiliary storage device I / F,
31 ... keyboard, 32 ... mouse, 41 ... HDD (Hard Disk Drive), 42 ... DVD drive (Digital Versatile Disk), 50 ... external network,
200 ... Illuminance calculation program, 210 ... Illumination calculation database, 220 ... CAD program, 230 ... CAD database.

Claims (3)

In an illumination calculation system executed by a computer,
The computer has a CPU and a memory,
The memory holds illuminance map diagram data relating to an illuminance map diagram of a room subject to illuminance calculation created by a CAD program, and data relating to a lighting fixture of a room subject to illuminance calculation,
The illuminance map diagram data includes the frontage and depth of each room,
The CPU calculates a room index based on the frontage and depth of a room that is a target of illuminance calculation of the illuminance map diagram data,
Based on the calculated room index, the CPU obtains an illumination rate corresponding to the type of lighting fixture,
The CPU calculates a calculated illuminance of a room subject to illuminance calculation based on the data relating to the luminaire and the illumination rate.   2. The illuminance calculation system according to claim 1, wherein the illuminance map diagram data further includes design illuminance of each room. In an illuminance calculation method executed by a computer,
The computer has a CPU, a memory, and an auxiliary storage device.
The memory holds a CAD program and an illuminance calculation program,
The auxiliary storage device holds a CAD database that is accessed by the CAD program, and an illuminance calculation database that is accessed by the illuminance calculation program and includes data relating to lighting equipment,
A step of creating an illuminance map by the CPU executing the CAD program;
Creating the illuminance map diagram data in the illuminance calculation database with respect to the illuminance map diagram by the CPU executing the CAD program;
By the CPU executing the illuminance calculation program, the illuminance map diagram data in the illuminance calculation database is imported into the illuminance calculation database as import data;
The CPU calculates the room index based on the front and depth of the room of the illuminance map diagram data captured as the import data by executing the illuminance calculation program;
The CPU calculates the illumination rate corresponding to the type of the lighting fixture based on the calculated room index by executing the illuminance calculation program;
An illuminance calculation method comprising: calculating the calculated illuminance of a room subject to illuminance calculation based on the data related to the luminaire and the illumination rate by the CPU executing the illuminance calculation program.

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