Design support apparatus, design support method, and design support program

Abstract

To provide a design support device, a design support method and a design support program for supporting design of a building for performing illumination control in consideration of well-being in a work environment by biophilic design.SOLUTION: The support device 20 includes a control unit 21 that supports the design of the interior arranged in the three dimensional space. A control part 21 executes processing for specifying arrangement information in a room including a plant position and an operator position, processing for calculating a light environment state by natural light and artificial light in the room by using the arrangement information, and processing for calculating a first evaluation result about influence by the light environment state in the operator position according to the arrangement information. The control unit 21 executes a process of calculating a second evaluation result about the influence of the light environment state at the plant position according to the arrangement information, and a process of adjusting the control condition of the artificial light according to the first evaluation result and the second evaluation result.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a design support device, a design support method, and a design support program that support the design of a building. [Background technology]

[0002] Well-being, a state of physical and mental health and happiness, is gaining attention in offices and other settings. The WELL certification, which is related to well-being, recommends maintaining a certain level of equivalent melanopic illuminance (e.g., 275 EML or higher for four hours). Equivalent melanopic illuminance is the brightness detected by cells involved in melatonin secretion, and therefore affects biological rhythms. Properly designing equivalent melanopic illuminance can regulate circadian rhythms and have beneficial effects on health. Therefore, lighting systems for regulating users' biological rhythms have also been studied (see, for example, Patent Document 1). The lighting system described in this document includes multiple light sources with different emission spectra and a controller that controls the output of the multiple light sources. The controller then reduces the equivalent melanopic illuminance obtained from the multiple light sources as time passes from morning to night.

[0003] Furthermore, biophilic design in offices aims to improve worker well-being by incorporating natural elements. For this reason, technology for determining the impact that a target space containing plants has on people is also being considered (see, for example, Patent Document 2). The space determination device described in this document extracts, from an image of the target space, feature quantities that change depending on the plant arrangement contained in the image. Furthermore, the space determination device classifies the target space into multiple space types. The space types include at least a first space type that reduces human stress, a second space type that improves human concentration, and a third space type that improves human vitality. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2023-45136 [Patent Document 2] JP 2024-11900 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, when controlling lighting in an office that incorporates natural elements using equivalent melanopic illuminance, it is difficult to control the illuminance so that both the illuminance suitable for workers in the office and the illuminance suitable for plants in the office coexist, because they differ. [Means for solving the problem]

[0006] A design support device for solving the above problems includes a control unit that supports the design of a room arranged in a three-dimensional space. The control unit executes the following processes: identifying layout information of the room including a plant position and a worker position; calculating a lighting environment condition of the room due to natural light and artificial light using the layout information; calculating a first evaluation result of an influence of the lighting environment condition at the worker position according to the layout information; calculating a second evaluation result of an influence of the lighting environment condition at the plant position according to the layout information; and adjusting a control condition of the artificial light according to the first evaluation result and the second evaluation result. [Effects of the Invention]

[0007] According to the present disclosure, lighting control can be performed in a biophilic design work environment with well-being in mind. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is an explanatory diagram of a system according to an embodiment. [Figure 2] FIG. 2 is an explanatory diagram of a hardware configuration of the embodiment. [Figure 3] FIG. 2 is an explanatory diagram of elements used in the embodiment. [Figure 4] FIG. 2 is an explanatory diagram of lighting control used in the embodiment. [Figure 5] FIG. 2 is an explanatory diagram of a processing procedure according to an embodiment. [Figure 6] FIG. 2 is an explanatory diagram of a processing procedure according to an embodiment. [Figure 7] FIG. 2 is an explanatory diagram of a processing procedure according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of a design support device, a design support method, and a design support program will be described below with reference to Figures 1 to 7. In this embodiment, the design support device, the design support method, and the design support program will be described as being used when constructing a work environment that takes into consideration the well-being of workers. In this embodiment, the design support system uses a user device 10 and a support device 20, as shown in FIG.

[0010] (Hardware configuration description) 2, the hardware configuration of the information processing device H10 that constitutes the user device 10 and the support device 20 will be described. The information processing device H10 includes a communication device H11, an input device H12, a display device H13, a storage device H14, and a processor H15. Note that this hardware configuration is an example, and it can also be realized by other hardware.

[0011] The communication device H11 is an interface that establishes a communication path with another device and executes data transmission and reception, and is, for example, a network interface or a wireless interface.

[0012] The input device H12 is a device that accepts input of various information, such as a mouse, a keyboard, etc. The display device H13 is a display or the like that displays various information. The storage device H14 is a storage device that stores data and various programs for executing various functions of the user device 10 and the support device 20. Examples of the storage device H14 include a ROM, a RAM, and a hard disk.

[0013] The processor H15 uses programs and data stored in the storage device H14 to control each process in the user device 10 and the support device 20. Examples of the processor H15 include a CPU and an MPU. The processor H15 loads programs stored in a ROM or the like into a RAM and executes various processes for each process.

[0014] The processor H15 is not limited to a processor that performs all of its processing using software. For example, the processor H15 may include a dedicated hardware circuit (e.g., an application-specific integrated circuit (ASIC)) that performs hardware processing for at least some of the processing it performs. That is, the processor H15 may be configured with the following:

[0015] [1] One or more processors operating according to a computer program (software); [2] One or more dedicated hardware circuits that perform at least some of the various processes; or [3] Circuits containing combinations of these The processor includes a CPU and memory, such as RAM and ROM, that stores program code or instructions configured to cause the CPU to perform processes. Memory, or computer-readable media, includes any available media that can be accessed by a general-purpose or special-purpose computer.

[0016] (Work environment factors) The elements of the work environment will be explained using Figure 3. In this embodiment, the sun and lighting equipment installed in the room are used as light sources. In this case, the amount of natural light entering the room through windows and openings in the building varies depending on the altitude of the sun. Lighting devices L10 are placed in the room according to the worker arrangement D1. The lighting devices L10 provide ambient lighting L11 and task lighting L12 according to the lighting arrangement. Here, the ambient lighting L11 is lighting that brightly illuminates the entire room. The task lighting L12 is lighting that focuses on illuminating areas where specific tasks or activities are performed. The lighting devices L10 determine the equivalent melanopic illuminance L15 for the worker arrangement D1. The worker's productivity E1 changes depending on this equivalent melanopic illuminance L15.

[0017] Furthermore, biophilic design D2 involves placing plants P0, which are natural elements, indoors. By incorporating plants P0, the aim is to improve the well-being (mental and physical health and happiness) of workers. In this case, plant supplemental light L20 suitable for photosynthesis is required depending on the placement P1 and type P2 of the plants P0.

[0018] Therefore, as shown in FIG. 4, by using ambient lighting and supplemental plant lighting, the wellness standard table 500 (wellness promotion information) is satisfied. Here, in the wellness standard table 500, different lighting control conditions are used for "morning, afternoon, and night" and "sunny day and rainy day." For ambient lighting, a "high melanopic" standard value is used in the morning to promote wakefulness and concentration. On the other hand, a "low melanopic" standard value is used at night to avoid disturbing sleep. For supplemental plant lighting, a "high PPFD" condition, which is the photosynthetic photon flux density (PPFD) that promotes photosynthesis, is used in the morning and afternoon, and a "low PPFD" standard value is used at night to promote dormancy. Furthermore, since the amount of natural light indoors differs depending on whether it is a sunny day or a rainy day, the lighting control conditions are changed.

[0019] (System Configuration) Next, each function of the design support system will be explained using FIG. The user device 10 is a computer terminal used by a person in charge of designing a building.

[0020] The support device 20 is a computer system (design support system) that supports design that takes into consideration the well-being of the worker. The support device 20 includes a control unit 21, a design information storage unit 22, and a control information storage unit .

[0021] The control unit 21 functions as a management unit 211, a calculation unit 212, and a support unit 213 by executing the design support program. The management unit 211 acquires design information including that of the structure, such as a building, to be processed. Furthermore, the management unit 211 acquires design information regarding the arrangement of fixtures and plants arranged in the room. The worker's position can be identified based on the arrangement of the fixtures. Furthermore, the management unit 211 acquires current illuminance information from an illuminance sensor installed in the room.

[0022] The calculation unit 212 executes a process of calculating the illuminance distribution of natural light and artificial lighting, the equivalent melanopic illuminance (first evaluation result), and the PPFD (second evaluation result). The calculation unit 212 stores information about the incident direction of sunlight for each time period throughout the year. The support unit 213 executes a process for supporting lighting control. The support unit 213 holds a wellness criteria table 500.

[0023] The design information storage unit 22 stores design information for offices in a building created in three-dimensional space using BIM (Building Information Modeling). This design information is recorded when an office in a building is designed using BIM. The building design information includes basic information, element model information, layout information, and attribute information.

[0024] The basic information includes information such as a building identifier, building name, longitude and latitude. Element model information is information about the 3D models (objects) of each element that makes up an office in a building. This element model includes the structural materials, lighting equipment, fixtures, and plants in the office. Lighting equipment includes devices for ambient lighting, task lighting, and plant supplementation lighting.

[0025] The layout information includes information about the coordinates at which each element model is placed. For example, the layout of furniture (desks) can identify the location of a worker, and the layout of plants can identify the location of a plant. The attribute information is attribute information of this element model. This attribute information includes information about the specifications of the element model (size, use, etc.). The attribute information of a plant includes the type of plant, size, plant information, etc. The plant information includes the unit leaf area per unit size, leaf arrangement coefficient, photosynthetic efficiency, etc.

[0026] The control information storage unit 23 stores lighting control condition information for lighting devices arranged in a room. This lighting control condition information is recorded during planning processing. The lighting control condition information includes lighting device IDs, time periods, and control conditions.

[0027] The lighting device ID is an identifier for identifying each lighting device. The time period is the time period during which the lighting device is controlled. In this embodiment, a common time period is used throughout the year. The control conditions are the control conditions (light intensity, color temperature) of the lighting equipment during this time period.

[0028] (Design support processing) The design support process will be described with reference to FIGS.

[0029] (Planning process) First, the planning process will be described with reference to FIG. Here, the control unit 21 of the support device 20 executes a building information acquisition process (step S11). Specifically, the management unit 211 of the control unit 21 acquires building design information (building model) from the user device 10 and records it in the design information storage unit 22. This building model is designed using BIM, and can identify the building structure as well as the building orientation, windows, openings, etc.

[0030] Next, the control unit 21 of the support device 20 executes a process for acquiring furniture information (step S12). Specifically, the management unit 211 of the control unit 21 acquires furniture information (furniture model for interior furniture such as desks, cabinets, etc.) to be arranged in the room from the user device 10, and records it in the design information storage unit 22. This furniture model is also set by BIM, and it is possible to identify the arrangement, etc. of the furniture in the building.

[0031] Next, the control unit 21 of the support device 20 executes a process for acquiring plant information (step S13). Specifically, the management unit 211 of the control unit 21 acquires information about plants (plant models) to be placed indoors from the user device 10 and records the information in the design information storage unit 22. This plant model is also set by BIM, and it is possible to identify the placement within the building and the plant attribute information (plant type, size, plant information, etc.). By using the plant attribute information, it is possible to acquire information necessary for calculating PPFD, such as photosynthetic efficiency based on the plant type and leaf area according to size.

[0032] Next, the control unit 21 of the support device 20 executes a lighting plan acquisition process (step S14). Specifically, the management unit 211 of the control unit 21 acquires the lighting plan from the user device 10 and records it in the design information storage unit 22. This lighting plan includes a model of the lighting devices to be placed in the room. This lighting device model is also set by BIM, and can identify the placement within the building, the type of lighting device, etc. Depending on the type of lighting device, the controllable light intensity range, color temperature range (light color: wavelength), etc. can be set.

[0033] Next, the control unit 21 of the support device 20 identifies the processing target for the time period, and repeats the following processing for each time period. Here, the control unit 21 of the support device 20 executes a process for setting control conditions (step S15). Specifically, the management unit 211 of the control unit 21 identifies candidate control conditions for the illuminance and light quality of the lighting devices in the time period to be processed in order to realize an indoor lighting environment. Here, the controllable light intensity range and light temperature range of the lighting devices set in the lighting plan are used.

[0034] Next, the control unit 21 of the support device 20 executes a natural light calculation process (step S16). Specifically, the calculation unit 212 of the control unit 21 identifies the solar altitude, which varies depending on the time of day. Here, the solar altitude calculated by statistical processing throughout the year is used. Next, using the design information storage unit 22, the calculation unit 212 simulates natural light entering the room from this solar altitude through windows and openings in the building's orientation. In this case, light shading and reflection due to the arrangement of walls and fixtures are also taken into consideration. Then, the calculation unit 212 calculates the illuminance distribution (daylight distribution) in the room for this time of day through this simulation.

[0035] Next, the control unit 21 of the support device 20 executes an artificial lighting output calculation process (step S17). Specifically, the calculation unit 212 of the control unit 21 uses the control conditions set by the lighting control setting (step S15) to calculate the illuminance distribution (artificial light distribution) that can be controlled in the room by the lighting devices set in the lighting plan.

[0036] Next, the control unit 21 of the support device 20 executes a natural light / artificial light synthesis calculation process (step S18). Specifically, the calculation unit 212 of the control unit 21 combines the daylight distribution calculated by the natural light calculation process (step S16) with the artificial light distribution calculated by the artificial lighting output calculation process (step S17). As a result, the calculation unit 212 calculates a combined distribution (light environment state) of illuminance that can be controlled indoors during this time period.

[0037] Next, as shown in Fig. 6, the control unit 21 of the support device 20 executes an equivalent melanopic illuminance calculation process (step S21). Specifically, the calculation unit 212 of the control unit 21 calculates the controllable equivalent melanopic illuminance (EML) range in this time period based on the composite distribution. The following formula is used to calculate the equivalent melanopic illuminance. [Equivalent melanopic illuminance EML] = ΣE(λ) · V(λ) · M(λ) E(λ): Optical spectrum at wavelength λ V(λ): human melanopsin sensitivity function M(λ): Melanopic action spectrum

[0038] Next, the control unit 21 of the support device 20 executes a determination process to determine whether the reference value of equivalent melanopic illuminance is satisfied (step S22). Specifically, the support unit 213 of the control unit 21 identifies the equivalent melanopic illuminance reference value for this time period using the wellness reference table 500. Next, the support unit 213 compares the controllable equivalent melanopic illuminance calculated in step S21 with the equivalent melanopic illuminance reference value. If the equivalent melanopic illuminance reference value is within the controllable equivalent melanopic illuminance range at each work position in the room, it is determined that the reference value is satisfied.

[0039] If it is determined that the reference value for equivalent melanopic illuminance is satisfied ("YES" in step S22), the control unit 21 of the support device 20 executes PPFD calculation processing (step S23). Specifically, the calculation unit 212 of the control unit 21 identifies plant information using attribute information of the plant model. Next, the calculation unit 212 calculates the number of photons. Here, the number of photons emitted from the light source in a composite distribution that can be controlled indoors is calculated using the following formula.

[0040] [Photon number] = [Controllable indoor synthetic distribution] · [Photosynthetic efficiency] · [Wavelength coefficient] Then, the calculation unit 212 calculates the PPFD by dividing the amount of photon absorption by the leaf area using the following formula. [PPFD] = [Photon number] / [Leaf area]

[0041] Next, the control unit 21 of the support device 20 executes a determination process to determine whether the PPFD reference value is satisfied (step S24). Specifically, the support unit 213 of the control unit 21 identifies the PPFD reference value for this time period using the wellness reference table 500. Next, the support unit 213 compares the controllable PPFD range calculated in step S23 with the PPFD reference value. If the PPFD reference value is within the controllable PPFD range at each plant position in the room, it is determined that the reference value is satisfied.

[0042] If it is determined that the PPFD standard value is satisfied (YES in step S24), the control unit 21 of the support device 20 executes a control condition recording process (step S25). Specifically, the management unit 211 of the control unit 21 selects the control conditions of the lighting devices that satisfy the equivalent melanopic illuminance and PPFD standard value for this time period and records them in the control information storage unit 23. Then, the above process is repeated for all time periods.

[0043] On the other hand, if it is determined that the reference value is not satisfied ("NO" in steps S22 and S24), the control unit 21 of the support device 20 returns to the lighting plan acquisition process (step S14). Here, the lighting plan is adjusted. For example, if the equivalent melanopic illuminance range is insufficient, an ambient lighting device is added. Also, if the PPFD range is insufficient, a lighting device for plant supplemental lighting is added.

[0044] (Control processing) Next, the control process will be described with reference to Fig. 7. This process is executed periodically for each time period.

[0045] First, the control unit 21 of the support device 20 executes a natural light calculation process (step S31). Specifically, the management unit 211 of the control unit 21 acquires current illuminance information using an illuminance sensor. Next, the management unit 211 compares the current illuminance information with the illuminance information of natural light used in the simulation at the time of planning. Then, the calculation unit 212 calculates the illuminance distribution by natural light (daylight distribution) based on the comparison between the current illuminance information and the simulation result.

[0046] Next, the control unit 21 of the support device 20 executes a process for setting control conditions (step S32). Specifically, the management unit 211 of the control unit 21 acquires the current control conditions of the light intensity and color temperature of the lighting device.

[0047] Next, the control unit 21 of the support device 20 executes an artificial lighting output calculation process (step S33). Specifically, the calculation unit 212 of the control unit 21 calculates the illuminance distribution (artificial light distribution) by lighting using the control conditions set by the lighting control setting (step S32).

[0048] Next, the control unit 21 of the support device 20 executes a natural light / artificial light synthesis calculation process (step S34). Specifically, the calculation unit 212 of the control unit 21 calculates a synthetic illuminance distribution by combining the daylight distribution calculated by the natural light calculation process (step S31) and the artificial light distribution calculated by the artificial lighting output calculation process (step S33).

[0049] Next, the control unit 21 of the support device 20 executes the equivalent melanopic illuminance calculation process in the same manner as in step S21 (step S35). Next, the control unit 21 of the support device 20 executes a determination process to determine whether the reference value of equivalent melanopic illuminance is satisfied (step S36). Specifically, the support unit 213 of the control unit 21 identifies the equivalent melanopic illuminance reference value for the current time period using the wellness reference table 500. Next, the support unit 213 compares the equivalent melanopic illuminance calculated in step S35 with the equivalent melanopic illuminance reference value. If the difference between the equivalent melanopic illuminance at each work position in the room and the equivalent melanopic illuminance reference value is within the allowable range, it is determined that the reference value is satisfied.

[0050] If it is determined that the reference value for the equivalent melanopic illuminance is satisfied (YES in step S36), the control unit 21 of the support device 20 executes the PPFD calculation process (step S37), similar to step S23.

[0051] Next, the control unit 21 of the support device 20 executes a determination process to determine whether the PPFD standard value is satisfied (step S38). Specifically, the support unit 213 of the control unit 21 identifies the PPFD standard value for the current time period using the wellness standard table 500. Next, the support unit 213 compares the PPFD calculated in step S37 with the PPFD standard value. If the difference between the PPFD at each indoor plant position and the PPFD standard value is within the allowable range, it is determined that the standard value is satisfied.

[0052] If it is determined that the reference value for PPFD is satisfied (YES in step S38), the control unit 21 of the support device 20 executes the lighting control process (step S39). Specifically, the support unit 213 of the control unit 21 controls the lighting device under the current control conditions.

[0053] On the other hand, if it is determined that the reference value is not satisfied ("NO" in steps S36 and S38), the control unit 21 of the support device 20 returns to the lighting control setting process (step S32). Here, the control conditions are adjusted. For example, if the equivalent melanopic illuminance is insufficient, control conditions are set in which the illuminance of ambient lighting and task lighting is increased. Also, if the PPFD is insufficient, control conditions are set in which the amount of supplemental lighting for plants is increased.

[0054] (Action of this embodiment) It evaluates the indoor equivalent melanopic illuminance and PPFD, making it suitable for both people and plants.

[0055] (Effects of this embodiment) (1) In this embodiment, the control unit 21 of the support device 20 executes a process of acquiring building information (step S11), a process of acquiring fixture information (step S12), and a process of acquiring plant information (step S13), thereby enabling the target for evaluating the lighting environment to be identified.

[0056] (2) In this embodiment, the control unit 21 of the support device 20 executes a lighting plan acquisition process (step S14), thereby determining the placement of lighting devices. (3) In this embodiment, the control unit 21 of the support device 20 executes a process for setting control conditions (step S15), thereby making it possible to identify the illuminance that can be controlled by each lighting device.

[0057] (4) In this embodiment, the control unit 21 of the support device 20 executes a natural light calculation process (step S16), thereby calculating the illuminance distribution of natural light for each time period.

[0058] (5) In this embodiment, the control unit 21 of the support device 20 executes an artificial lighting output calculation process (step S17), thereby calculating the illuminance distribution of artificial light. (6) In this embodiment, the control unit 21 of the support device 20 executes a natural light / artificial photosynthesis calculation process (step S18). This allows the controllable illuminance distribution to be calculated using natural light and artificial light.

[0059] (7) In this embodiment, the control unit 21 of the support device 20 executes an equivalent melanopic illuminance calculation process (step S21) and a determination process (step S22) as to whether the reference value of the equivalent melanopic illuminance is satisfied. This allows the controllability of the light environment that affects human health to be evaluated according to the time of day.

[0060] (8) In this embodiment, the control unit 21 of the support device 20 executes a PPFD calculation process (step S23) and a determination process (step S24) as to whether the PPFD reference value is satisfied. This allows the controllability of the light environment that affects plant growth to be evaluated according to the time of day.

[0061] (9) In this embodiment, if it is determined that the reference value is not satisfied (if "NO" in steps S22 and S24), the control unit 21 of the support device 20 returns to the lighting plan acquisition process (step S14). This allows the lighting plan, such as the arrangement of lighting devices, to be adjusted.

[0062] (10) In this embodiment, the control unit 21 of the support device 20 executes a natural light calculation process (step S31), thereby calculating the illuminance distribution of natural light in the current time zone.

[0063] (11) In this embodiment, the control unit 21 of the support device 20 executes a process for setting control conditions (step S32) and a process for calculating artificial lighting output (step S33), thereby calculating the illuminance distribution of artificial light in the current time zone.

[0064] (12) In this embodiment, the control unit 21 of the support device 20 executes a natural light / artificial photosynthesis calculation process (step S34), thereby calculating the illuminance distribution of natural light and artificial light in the current time zone.

[0065] (13) In this embodiment, the control unit 21 of the support device 20 executes an equivalent melanopic illuminance calculation process (step S35) and a determination process (step S36) as to whether the reference value of the equivalent melanopic illuminance is satisfied. This allows the light environment that affects human health in the current time zone to be evaluated.

[0066] (14) In this embodiment, the control unit 21 of the support device 20 executes a PPFD calculation process (step S37) and a determination process (step S38) as to whether the PPFD reference value is satisfied. This allows the light environment that affects plant growth in the current time period to be evaluated.

[0067] This embodiment can be modified as follows: This embodiment and the following modifications can be combined and implemented within the scope of technical compatibility. In the above embodiment, the support unit 213 stores a wellness standard table 500. In this wellness standard table 500, lighting control conditions are different for "morning, afternoon, night" and "sunny day, rainy day." The equivalent melanopic illuminance and PPFD conditions are not limited to these. For example, they may be changed depending on the day of the week or the type of work.

[0068] In the above embodiment, the control unit 21 of the support device 20 executes the PPFD calculation process (steps S23 and S37), where room temperature and humidity may be taken into consideration. In the above embodiment, the control unit 21 of the support device 20 executes a natural light calculation process (step S16). Here, the solar altitude calculated by statistical processing throughout the year is used. Alternatively, the natural light calculation process may be performed for each period, such as each calendar day, each month, or each season.

[0069] In the above embodiment, the control unit 21 of the support device 20 executes a natural light calculation process (step S31). In this case, current illuminance information is acquired from an illuminance sensor. The method of acquiring illuminance information is not limited to using a sensor. For example, the control unit 21 of the support device 20 may acquire the illuminance information from an external information source such as a weather information site. For example, when weather information for the location of the building is acquired, the control unit 21 estimates the illuminance from the weather information.

[0070] In the above embodiment, the control unit 21 of the support device 20 executes a process of acquiring plant information (step S13). The information required to calculate PPFD is not limited to being acquired from the attribute information of the plant model stored in the design information storage unit 22. For example, the information required for PPFD calculation may be acquired from a separately provided plant information storage unit depending on the plant type.

[0071] In the above embodiment, the worker position is identified based on the position of fixtures. However, the method for identifying the worker position is not limited to this. For example, the worker position specified in the room layout may be acquired. Furthermore, in the control process, the worker position where the worker is located may be identified using a sensor or a camera.

[0072] In the above embodiment, equivalent melanopic illuminance and PPFD are used, but any index that can evaluate workers and plants separately may be used. Furthermore, an index for biophilic design may be added. For example, the greenery view factor may be used.

[0073] Next, the technical ideas that can be understood from the above-described embodiment and other examples will be described below. 2. The computer-aided design system according to claim 1, wherein: (a) equivalent melanopic illuminance is used as the first evaluation result.

[0074] (b) The design support system according to claim 1 or (a) above, wherein the photosynthetic photon flux density is used as the second evaluation result. (c) The design support device according to any one of (a) and (b) above, characterized in that the control unit calculates the first evaluation result and the second evaluation result for each time period.

[0075] (d) The design support device according to any one of (a) to (c) above, characterized in that the control unit calculates the first evaluation result and the second evaluation result using an output possible range of the lighting equipment.

[0076] (e) The design support device according to any one of (a) to (d) above, characterized in that the control unit acquires the solar altitude and calculates the natural light illuminance in the room according to the solar altitude.

[0077] (f) The design support device according to any one of (a) to (e) above, characterized in that the control unit calculates the illuminance of natural light using an illuminance sensor. (g) The design support device according to any one of (a) to (f) above, characterized in that the control unit acquires weather information from a weather information site and estimates natural light illuminance according to the weather information. [Explanation of symbols]

[0078] 10...user device, 20...support device, 21...control unit, 211...management unit, 212...calculation unit, 213...support unit, 22...design information storage unit, 23...control information storage unit.

Claims

1. A design support device including a control unit that supports the design of a room arranged in a three-dimensional space, The control unit A process of identifying layout information of the room including a plant position and a worker position; A process of calculating a lighting environment situation of natural light and artificial light in the room using the arrangement information; a process of calculating a first evaluation result regarding an influence of the lighting environment condition at the worker position; A process of calculating a second evaluation result regarding the influence of the light environment condition at the plant position; and adjusting a control condition of the artificial light in accordance with the first evaluation result and the second evaluation result.

2. The design support device according to claim 1 , wherein the control unit calculates an amount of supplemental light for plants in accordance with the second evaluation result.

3. A method for supporting design using a design support device including a control unit that supports the design of a room arranged in a three-dimensional space, comprising: The control unit A process of identifying layout information of the room including a plant position and a worker position; A process of calculating a lighting environment situation of natural light and artificial light in the room using the arrangement information; a process of calculating a first evaluation result regarding an influence of the lighting environment condition at the worker position; A process of calculating a second evaluation result regarding the influence of the light environment condition at the plant position; and adjusting a control condition of the artificial light in accordance with the first evaluation result and the second evaluation result.

4. A program for supporting design using a design support device having a control unit that supports the design of an interior space arranged in a three-dimensional space, The control unit A process of identifying layout information of the room including a plant position and a worker position; A process of calculating a lighting environment situation of natural light and artificial light in the room using the arrangement information; a process of calculating a first evaluation result regarding an influence of the lighting environment condition at the worker position; A process of calculating a second evaluation result regarding the influence of the light environment condition at the plant position; and adjusting a control condition of the artificial light in accordance with the first evaluation result and the second evaluation result.

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