Lighting design support system, lighting design support method and program

Abstract

To provide an illumination design support system capable of supporting designing the placement position of lighting equipment to adjust the biological rhythm.SOLUTION: An illumination design support system 1 includes: an acquisition unit 111 that acquires spatial information representing the shape of a space, equipment information representing the performance of the lighting equipment, and criteria information indicating criteria for vertical illuminance in the space; an arithmetic unit 120 that calculates the placement position of the lighting equipment in the space so that the vertical illuminance of the target area in the space indicated by the acquired spatial information meets the criteria indicated by the acquired criteria information based on the acquired equipment information; and an output unit 112 that outputs the calculated placement position.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a lighting design support system, a lighting design support method, and a program. [Background technology]

[0002] 2. Description of the Related Art Systems that assist in designing the placement of lighting fixtures in a space such as a room are known.

[0003] For example, Patent Document 1 discloses a lighting installation drawing creation support device (lighting design support system) as such a system.

[0004] In Patent Document 1, the lighting design support system includes a means for inputting room attributes, a means for inputting a drawing of the room, and a storage means for storing the required illuminance and the standard lighting fixtures used in the room in association with each other. Furthermore, the lighting design support system includes a program for calculating the number of lighting fixtures required to achieve the illuminance of the room with the lighting fixtures and calculating a pattern for arranging the number of lighting fixtures in the room, and a means for displaying and outputting the calculated pattern by superimposing it on the drawing. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 8-87535 Summary of the Invention [Problem to be solved by the invention]

[0006] Incidentally, human biological rhythms are not naturally 24-hour cycles, and as a result, deviations in biological rhythms occur when people lead normal lives. It is also known that there are methods for regulating a person's biological rhythms by introducing light into the human eye.

[0007] In the lighting design support system disclosed in Patent Document 1, the horizontal illuminance on the desk work surface and the hallway floor is used as the illuminance required for designing the placement of lighting fixtures, and the light received by the human eye is not taken into consideration. Therefore, with the lighting design support system disclosed in Patent Document 1, it is difficult to design the placement of lighting fixtures in a way that regulates people's biorhythms.

[0008] The present invention provides a lighting design support system that can support the design of the placement of lighting fixtures to regulate biorhythms. [Means for solving the problem]

[0009] A lighting design support system according to one embodiment of the present invention includes an acquisition unit that acquires spatial information indicating a shape of a space, fixture information indicating performance of lighting fixtures, and reference information indicating a standard for vertical illuminance in the space, a calculation unit that calculates a placement position of the lighting fixture in the space based on the acquired fixture information so that the vertical illuminance of a target area in the space indicated by the acquired spatial information satisfies the standard indicated by the acquired reference information, and an output unit that outputs the calculated placement position.

[0010] A lighting design support method according to one aspect of the present invention is a lighting design support method using a lighting design support system, and includes the steps of: acquiring spatial information indicating a shape of a space, fixture information indicating performance of lighting fixtures, and reference information indicating a standard for vertical illuminance in the space; a calculation step of calculating positions of the lighting fixtures in the space based on the acquired fixture information so that the vertical illuminance of a target area in the space indicated by the acquired spatial information satisfies the standard indicated by the acquired reference information; and an output step of outputting the calculated positions.

[0011] A computer program according to an aspect of the present invention causes a computer to execute the above-described lighting design support method. Effect of the Invention

[0012] The lighting design support system of the present invention can support the design of the placement of lighting fixtures to regulate biorhythms. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is a diagram showing a configuration of a lighting design support system according to an embodiment. [Diagram 2] FIG. 2 is a block diagram illustrating a functional configuration of the lighting design support system according to the embodiment. [Diagram 3] FIG. 3 is a flowchart of a first operation example of the lighting design support system according to the embodiment. [Figure 4] FIG. 4 is a diagram for explaining the processing of the calculation unit in the first operation example according to the embodiment. [Diagram 5] FIG. 5 is a diagram for explaining the processing of the calculation unit in the second operation example according to the embodiment. [Figure 6] FIG. 6 is a diagram for explaining the processing of the calculation unit in the third operation example according to the embodiment. [Figure 7] FIG. 7 is a diagram for explaining the processing of the calculation unit in the fourth operation example according to the embodiment. [Figure 8] FIG. 8 is a contour map showing a superimposed distribution of vertical illuminance in a target area due to light traveling in a first direction and a distribution of vertical illuminance in a target area due to light traveling in a third direction in an operation example 4 according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, the embodiments will be described in detail with reference to the drawings. Note that the embodiments described below are all comprehensive or specific examples. The numerical values, shapes, materials, components, component arrangement and connection forms, steps, and order of steps shown in the following embodiments are merely examples and are not intended to limit the present invention. In addition, among the components in the following embodiments, components that are not described in the independent claims will be described as optional components.

[0015] In addition, each drawing is a schematic diagram and is not necessarily a precise illustration. In addition, in each drawing, the same reference numerals are used for substantially the same configuration, and duplicated explanations may be omitted or simplified.

[0016] In the present specification and drawings, the x-axis, y-axis, and z-axis represent three axes of a three-dimensional Cartesian coordinate system. In each embodiment, the direction parallel to the vertical direction is defined as the z-axis, and the two axes perpendicular to the z-axis and parallel to the horizontal direction are defined as the x-axis and y-axis.

[0017] (Embodiment 1) [composition] First, the configuration of a lighting design support system 1 according to the first embodiment will be described.

[0018] FIG. 1 is a diagram showing a configuration of a lighting design support system 1 according to the present embodiment.

[0019] FIG. 2 is a block diagram showing a functional configuration of the lighting design support system 1 according to the present embodiment.

[0020] The lighting design support system 1 according to the embodiment is a system for calculating the position of lighting fixtures in a space, that is, the positions where lighting fixtures are arranged. In other words, the lighting design support system 1 is a system for calculating light distribution. Specifically, the lighting design support system 1 calculates light distribution based on space information indicating the shape of the space, fixture information indicating the performance of the lighting fixtures, and reference information indicating the vertical illuminance standard. The lighting design support system 1 is used, for example, when a lighting designer (vendor) who is a first user U1 presents a lighting fixture arrangement plan in the space to a client (customer) who is a second user U2.

[0021] As shown in FIGS. 1 and 2, the lighting design assistance system 1 includes a server device 100 and an information terminal 200.

[0022] [Server device] First, the server device 100 will be described. The server device 100 is a cloud server that performs information processing to acquire space information, device information, and reference information, and to calculate the arrangement positions of lighting devices in a space based on the acquired space information, device information, and reference information. The server device 100 has a communication unit 110, a calculation unit 120, and a storage unit 130.

[0023] The communication unit 110 is a processing unit for the server device 100 to communicate with the information terminal 200 via a wide area communication network such as the Internet. The communication unit 110 is a processing unit that acquires information from the information terminal 200 and outputs the information to the information terminal 200. The communication performed by the communication unit 110 is, for example, wireless communication, but may also be wired communication. There is no particular limitation on the communication standard used for the communication. The communication unit 110 is, for example, realized by a microcomputer, but may also be realized by a processor.

[0024] The communication unit 110 also includes an acquisition unit 111 and an output unit 112 .

[0025] The acquisition unit 111 is a processing unit that acquires space information indicating the shape of the space, fixture information indicating the performance of the lighting fixture, and reference information indicating the reference for vertical illuminance in the space.

[0026] The spatial information is information indicating the shape of a space. Moreover, the space indicated by the spatial information is a space for which the second user U2, who is the client, has requested the first user U1, who is the lighting designer, to install lighting fixtures. For example, in this case, this space is a room (indoor space) that is a space surrounded by a ceiling surface, a floor surface, and walls, but is not limited to this and may be a semi-outdoor space, etc. The spatial information may be any data that indicates the shape of the space, and one example is three-dimensional CAD data. The spatial information indicates the sizes and positions of the floor surface, wall surface, ceiling surface, pillars, doors, windows, etc. of the space. Moreover, the spatial information indicates the sizes and positions of equipment (for example, a fire alarm and an air conditioner, etc.) that is placed on the ceiling of the space.

[0027] In this embodiment, the spatial information includes furniture information, which is information about furniture to be arranged in the space. The furniture information is, for example, information indicating the type of furniture and the position of the furniture in the space. The types of furniture are chairs and desks in this embodiment, but are not limited to this and may be shelves, etc. Furthermore, the furniture information may also include information indicating the size of the furniture to be arranged.

[0028] Next, information indicating the type to which a space belongs will be described. The type to which a space belongs indicated by this information may be, for example, a medical care facility (hospital, clinic, etc.), a restaurant, a house, an office, etc., or more specifically, a dining room and a hospital room in a medical care facility. The type to which a space in this embodiment belongs is a dining room in a medical care facility. For simplicity, the type to which a space belongs will be referred to as a "space type" below.

[0029] The fixture information is information indicating the performance of a lighting fixture. More specifically, the lighting fixture indicated in the fixture information is a lighting fixture for illuminating the above-mentioned space. The performance of a lighting fixture means, for example, the performance related to the light emitted by the lighting fixture (luminous flux, light distribution, color temperature, etc.) and the size of the lighting fixture.

[0030] The reference information is information that indicates a reference for vertical illuminance in a space. The reference for vertical illuminance indicates, for example, an illuminance of light that can regulate a person's biorhythm.

[0031] For example, a predetermined value of illuminance may be set as a standard for vertical illuminance in advance, preferably from 100 lx to 3000 lx, more preferably from 300 lx to 2000 lx, and even more preferably from 500 lx to 1500 lx.

[0032] As another example, the standard for vertical illuminance is a value based on the recommended illuminance specified in JIS (Japanese Industrial Standards) Z 9110:2011. In JIS Z 9110:2011, the recommended illuminance is specified for each type of space in which the lighting fixture is used. As an example, the type of space disclosed in the above JIS is a dining room and a patient room in a health care facility (hospital, clinic, etc.), and the recommended illuminance for the dining room and the patient room is specified as 300lx and 100lx, respectively.

[0033] If the standard is a value based on the recommended illuminance specified in JIS Z 9110:2011, the standard may be between 2 and 20 times the recommended illuminance.

[0034] As a result, the standard for vertical illuminance is the illuminance of light that can better regulate a person's biological rhythm. Therefore, by receiving such light into the human eye, the human biological rhythm can be better regulated.

[0035] Furthermore, the standard should be 2.5 to 15 times the recommended illuminance, and even better, 3 to 10 times. This makes the standard for vertical illuminance the illuminance of light that can further regulate people's biorhythms.

[0036] The type of space according to the present embodiment is a dining room in a medical and health care facility. In this case, the standard for vertical illuminance is preferably 600 lx to 6000 lx, more preferably 750 lx to 4500 lx, and even more preferably 900 lx to 3000 lx.

[0037] The vertical illuminance is as follows. For example, the vertical illuminance at a given measurement point is the illuminance measured by arranging the measurement surface of the illuminometer (i.e., the surface on which the light to be measured enters) horizontally in the vertical direction at the given measurement point. The vertical illuminance at a given measurement point is also the vertical surface illuminance at the given measurement point.

[0038] The output unit 112 is a processing unit that outputs the arrangement position calculated by the calculation unit 120. More specifically, the output unit 112 outputs the calculated arrangement position to the information terminal 200.

[0039] The calculation unit 120 is a processing unit that performs information processing to calculate the placement positions of lighting fixtures in space based on the spatial information, fixture information, and reference information acquired by the acquisition unit 111. Specifically, the calculation unit 120 calculates the placement positions of lighting fixtures in space based on the acquired fixture information so that the vertical illuminance in a target area of ​​the space indicated by the acquired spatial information satisfies the standard indicated by the acquired reference information. In other words, in the placement positions calculated by the calculation unit 120, the lighting fixtures can emit light that satisfies the vertical illuminance standard toward the target area. The calculation unit 120 is realized, for example, by a microcomputer, but may also be realized by a processor.

[0040] The storage unit 130 is a storage device that stores the programs executed by the calculation unit 120 and various information used to perform the above information processing. The storage unit 130 is realized by, for example, a hard disk drive (HDD).

[0041] [Information terminal] First, a description will be given of the information terminal 200. The information terminal 200 is, for example, a general-purpose mobile terminal such as a smartphone or a tablet terminal, but may also be a dedicated terminal for the lighting design assistance system 1.

[0042] As shown in FIG. 2, the information terminal 200 includes a reception unit 210, a display unit 220, a control unit 230, a terminal storage unit 240, and a terminal communication unit 250.

[0043] The reception unit 210 receives operations from the first user U1, the second user U2, etc. The reception unit 210 is, for example, a capacitive touch panel, but may be a resistive touch panel.

[0044] The reception unit 210 receives a space selection operation for selecting a space in which a lighting fixture will be placed. That is, the second user U2, who is the owner, performs an operation to select a space for which construction is requested, and the reception unit 210 receives the operation.

[0045] When the receiving unit 210 receives a space selection operation, it is preferable to receive an operation for selecting fixtures to be placed in the space and an operation for selecting the type to which the space belongs (here, a dining room).

[0046] The reception unit 210 also receives a fixture selection operation for selecting a lighting fixture. That is, the second user U2, who is the owner, performs an operation to select a lighting fixture to be placed in the space, and the reception unit 210 receives the operation.

[0047] The reception unit 210 also receives a standard selection operation for selecting a vertical illuminance standard. That is, the second user U2, who is the owner, performs an operation for selecting, for example, as the standard for vertical illuminance, either a value based on the recommended illuminance specified in JIS Z 9110:2011, or an illuminance having a predetermined numerical value for which the standard for vertical illuminance is previously determined. The reception unit 210 further receives the operation. Note that, here, the reception unit 210 receives an operation for selecting a value based on the recommended illuminance specified in JIS Z 9110:2011 as the standard for vertical illuminance.

[0048] The display unit 220 displays images. Specifically, the display unit 220 displays an image for accepting a space selection operation, an image for accepting an appliance selection operation, and an image for accepting a reference selection operation. For example, FIG. 1 shows a state in which an image for accepting an appliance selection operation is displayed. Furthermore, for example, the display unit 220 displays the calculated arrangement positions of the lighting fixtures. The display unit 220 is, for example, a display panel such as a liquid crystal panel or an organic EL (Electro Luminescence) panel.

[0049] The control unit 230 performs control of displaying images on the display unit 220. The control unit 230 is realized by, for example, a microcomputer, but may be realized by a processor. Furthermore, the control unit 230 acquires information corresponding to the operation accepted by the acceptance unit 210 from the terminal storage unit 240.

[0050] The control unit 230 acquires, from the terminal storage unit 240, space information such as three-dimensional CAD data indicating the shape of the selected space, as information corresponding to the space selection operation accepted by the acceptance unit 210.

[0051] When the reception unit 210 receives an operation for selecting fixtures to be placed in a space and an operation for selecting a type to which the space belongs, the control unit 230 acquires fixture information and information indicating the type to which the space belongs, as information corresponding to these operations. In this case, the space information includes information indicating the fixture information.

[0052] Furthermore, the control unit 230 acquires, from the device storage unit 240, device information indicating the performance of a lighting device associated with the selected lighting device, as information corresponding to the device selection operation accepted by the acceptance unit 210.

[0053] Furthermore, the control unit 230 acquires, from the terminal storage unit 240, reference information indicating the selected reference for vertical illuminance as information corresponding to the reference selection operation accepted by the accepting unit 210. Here, a value based on the recommended illuminance defined in JIS Z 9110:2011 is selected, so the control unit 230 acquires, from the terminal storage unit 240, reference information corresponding to the type based on the information indicating the type to which the above-mentioned space belongs. Since the type of space is a cafeteria, the reference may be any value between 2 and 20 times the recommended illuminance for a cafeteria, but here it is 3 to 10 times (between 900 lx and 3000 lx).

[0054] The terminal storage unit 240 is a storage device that stores programs executed by the control unit 230. The terminal storage unit 240 also stores the above-mentioned correspondence information. The terminal storage unit 240 is realized by, for example, a semiconductor memory.

[0055] The terminal communication unit 250 is a processing unit for enabling the information terminal 200 to communicate with the server device 100. The terminal communication unit 250 is realized by, for example, a microcomputer, but may also be realized by a processor.

[0056] For example, the control unit 230 transmits the spatial information, the tool information, and the reference information acquired to the server device 100. The communication performed by the terminal communication unit 250 is, for example, wireless communication, but may be wired communication. There is also no particular limitation on the communication standard used for the communication.

[0057] [Example 1] Hereinafter, an operation example 1 of the lighting design support system 1 will be described. FIG. 3 is a flowchart of the operation example 1 of the lighting design support system 1 according to the present embodiment. FIG. 4 is a diagram for explaining the processing of the calculation unit 120 in the operation example 1 according to the present embodiment. FIG. 4(a) is a diagram of the space S viewed in the vertical direction, which is a so-called plan view of the space S. FIG. 4(a) shows the shape (rectangle) of the space S indicated by the space information, the chair C1 and the desk T1 indicated by the furniture information, and the target area A1. FIG. 4(b) is a diagram of the space S viewed in the vertical direction like FIG. 4(a), and in addition to FIG. 4(a), the arrangement position of the lighting fixture L calculated by the calculation unit 120 is shown. FIG. 4(c) is a contour line diagram showing the vertical illuminance for the target area A1. Here, an example will be described in which the arrangement position of the lighting fixture L is calculated so that the vertical illuminance in the target area A1 of the space S, which is a dining room, satisfies a standard.

[0058] 3, the reception unit 210 of the information terminal 200 receives operations by the first user U1 and the second user U2. Here, the reception unit 210 receives a space selection operation for selecting a space S, an appliance selection operation for selecting a lighting appliance L, and a criterion selection operation for selecting a criterion for vertical illuminance. The reception unit 210 also receives an operation for selecting fixtures to be placed in the space S, and an operation for selecting a type to which the space S belongs. As a result, the terminal communication unit 250 transmits space information including the fixture information, appliance information, and criterion information to the server device 100.

[0059] Then, the acquisition unit 111 of the server device 100 first acquires spatial information (S10). In this operation example, the acquisition unit 111 acquires spatial information including furniture information. Note that (a) of FIG. 4 is an example of spatial information visualized from 3D CAD data. Also, (a) of FIG. 4 shows the positions in the space S of a chair C1 and a desk T1, which are furniture arranged on the floor surface of the space S. As described above, since the type of the space S is a dining room, a third user who uses the space S eats a meal at the chair C1 and the desk T1. At this time, the third user sits on the chair C1, and the face of the third user faces the direction of the desk T1 (i.e., the positive direction of the x-axis).

[0060] Next, the acquisition unit 111 acquires fixture information (S20). Here, the lighting fixture information indicates the performance of the selected lighting fixture L. Here, an elongated lighting fixture L is selected.

[0061] Furthermore, the acquisition unit 111 acquires reference information (S30). As described above, the reference indicated by the reference information here is a value based on the recommended illuminance defined in JIS Z 9110:2011. More specifically, since the space S is a dining room, a range of 900 lx to 3000 lx is used as the reference for vertical illuminance.

[0062] Next, the calculation unit 120 determines the target area A1 (S40).

[0063] The target area A1 is an area in the space S. The target area A1 is an area where it is assumed that there is a high possibility that a third user who uses the space S is present. More specifically, the target area A1 is an area where the third user is expected to stay for a predetermined time (for example, several minutes to several hours). For example, if the space S is a dining room, the target area A1 is an area where the third user who is a resident sits, and if the space S is an office space, the target area A1 is an area where the third user who is a worker works. More specifically, the target area A1 may be an area near the eyes of the third user who is expected to be in the space S. For example, the area near the eyes of the third user is a range from a height 10 cm lower to a height 10 cm higher than the eyes of the third user.

[0064] Here, the calculation unit 120 determines the target area A1 based on the furniture information acquired by the acquisition unit 111 (S40). More specifically, the calculation unit 120 determines the following area as the target area A1 based on the fact that the furniture information indicates that the furniture is chair C1 and the position where chair C1 is placed in space S. The calculation unit 120 calculates the placement position by setting as the target area A1 an area that overlaps with the position of chair C1 when space S is viewed vertically and that is at a first height.

[0065] Here, the shape of the area overlapping with the position of the chair C1 (i.e., the target area A1) may be a polygon such as a rectangle or a circle, but in this operation example, it is a straight line shape. Also, the first height is the height from the floor surface of the space S to the eyes of the third user sitting on the chair C1, and as an example, the height from the floor surface is any height between 100 cm and 140 cm. Here, the first height is 120 cm. In other words, the target area A1 is set at the eye height of the third user sitting on the chair C1.

[0066] Furthermore, the calculation unit 120 calculates the placement positions of the lighting fixtures L in the space S based on the fixture information so that the vertical illuminance of the target area A1 in the space S indicated by the spatial information satisfies a criterion (S50). The calculation unit 120 calculates the placement positions under conditions such as "the lighting fixtures L are placed on the ceiling surface of the space S", "the lighting fixtures L are placed so as to avoid equipment that is placed on the ceiling surface indicated by the spatial information", and "if multiple lighting fixtures L are placed, the multiple lighting fixtures L are placed at equal intervals".

[0067] For example, when multiple lighting fixtures L are arranged, the calculation unit 120 calculates multiple layout position proposals that satisfy two conditions: "the lighting fixtures L are arranged on the ceiling surface of the space S" and "when multiple lighting fixtures L are arranged, the multiple lighting fixtures L are arranged at equal intervals." Next, the calculation unit 120 calculates whether each of the calculated multiple layout position proposals satisfies the above criteria. Furthermore, the calculation unit 120 determines one or more layout position proposals that satisfy the above criteria. In this way, the calculation unit 120 calculates the layout positions of the lighting fixtures L in the space S. Furthermore, the calculation unit 120 may calculate the above layout positions based on an existing algorithm, without being limited to the above.

[0068] As described above, (b) of Fig. 4 shows the calculated positions of the lighting fixtures L. Here, six lighting fixtures L are placed on the ceiling surface so as to overlap with desk T1 in a plan view.

[0069] At the placement position calculated by the calculation unit 120, the lighting device L can emit light that meets the standard for vertical illuminance toward the target area A1. In other words, when a third user is present in the target area A1, light that meets the standard for vertical illuminance reaches and is taken in by the eyes of the third user. As described above, the standard for vertical illuminance is the illuminance of light that can regulate the biorhythm of a person (third user). Therefore, when the light is taken in by the eyes of the third user, the biorhythm of the third user is regulated.

[0070] Furthermore, the calculation unit 120 determines the target area A1 based on the furniture information. This allows the calculation unit 120 to determine an area in which the third user is more likely to be present as the target area A1.

[0071] The calculation unit 120 also calculates the placement position by setting the area that overlaps with the position of the chair C1 and is at the first height (the height from the floor surface of the space S to the eyes of the third user sitting on the chair C1) as the target area A1. As a result, the target area A1 is set at the height of the eyes of the third user sitting on the chair C1. Therefore, light that meets the standard of vertical illuminance is more easily taken in by the eyes of the third user.

[0072] Next, a detailed description will be given of the processing performed by the calculation unit 120. The calculation unit 120 calculates an arrangement position such that the vertical illuminance of the light emitted by the lighting device L and traveling in a first direction in the target area A1 satisfies a criterion.

[0073] The light based on the light emitted by the lighting fixture L includes light that travels directly from the lighting fixture L toward the target area A1 and light that travels toward the target area A1 after being reflected by the wall surfaces of the space S or the like.

[0074] We now describe the directions used in this detailed process.

[0075] The first direction is, for example, the negative x-axis direction shown in FIG. 4. Also, in FIG. 4(b), a second direction D2 is shown. The second direction D2 is the opposite direction to the first direction and is the positive x-axis direction. Also, the second direction D2 may be any direction in which the third user is likely to face in the space S (for example, a direction in which the user is likely to face for a long time), and as an example, it is the direction in which the face of the third user sitting on the chair C1 faces. In this way, the direction in which the third user is likely to face indicated by the second direction D2 may be determined, for example, by furniture. Furthermore, the first direction may be determined so that the second direction D2 is the direction in which the third user is likely to face. Also, the first direction may be a direction parallel to the horizontal direction.

[0076] Moreover, the light traveling in the first direction is light traveling in the negative direction of the x-axis. More specifically, the light traveling in the first direction is light traveling from a region on the positive side of the x-axis relative to the target region A1 toward the target region A1. Note that the light traveling in the first direction is not limited to light parallel to the x-axis, and may be light having a vector traveling in the negative direction of the x-axis.

[0077] As described above, when the third user sits on the chair C1, the third user faces the positive direction of the x-axis, that is, the second direction D2, and the target area A1 is set at the eye height of the third user. Therefore, when detailed processing is performed by the calculation unit 120, light that meets the standard of vertical illuminance is likely to reach the face of the third user facing the second direction D2, more specifically, the eyes of the third user.

[0078] In addition, (c) of Figure 4 is a contour map showing the vertical illuminance for the target area A1, and more specifically, is a contour map showing the distribution of vertical illuminance when a third user facing in the second direction D2 looks at a vertical plane including the target area A1.

[0079] 4(c) shows the positional relationship between the linear target area A1, the floor surface, and the ceiling surface in the space S. As described above, the first height, which is the height of the target area A1 from the floor surface, is 120 cm. The vertical illuminance of the target area A1 is 1000 lx or more and 1500 lx or less, which satisfies the vertical illuminance standard (900 lx or more and 3000 lx or less).

[0080] The output unit 112 outputs the calculated arrangement position (S60). In this operation example, the output unit 112 further outputs the position of the target area A1 in the space S, the second direction D2, and the distribution of the vertical illuminance.

[0081] The terminal communication unit 250 of the information terminal 200 acquires the arrangement position output by the output unit 112, the position of the target area A1 in the space S, the second direction D2, and the distribution of the vertical illuminance.

[0082] The display unit 220 of the information terminal 200 displays an image showing the acquired placement position, the position of the target area A1 in the space S, and the second direction D2. (b) of Fig. 4 is an example of the image. The display unit 220 also displays an image showing the acquired distribution of the vertical illuminance. (c) of Fig. 4 is an example of the image.

[0083] In this way, by displaying the above image, the second user U2, who is the owner, can easily understand the arrangement positions of the lighting fixtures L, the position of the target area A1, and the distribution of vertical illuminance in the target area A1. Furthermore, the second user U2 can easily understand that light that meets the criteria for vertical illuminance reaches the third user by facing the second direction D2 in the target area A1.

[0084] Although the first height is a fixed height (120 cm) above, it is not limited to this and may be a height having a predetermined range. That is, the first height may be a height in the range from 110 cm to 130 cm, for example. That is, in this case, the calculation unit 120 calculates the arrangement position based on the fixture information, with the area of ​​the vertical plane in the space S as the target area A1.

[0085] [Example 2] Operation example 2 of the lighting design support system 1 will be described below. Fig. 5 is a diagram for explaining the processing of the calculation unit 120 in operation example 2 according to the present embodiment. Fig. 5 is a diagram of space S viewed in the vertical direction. Fig. 5 shows the shape (rectangle) of space S indicated by the space information, chair C1 and desk T1 indicated by the furniture information, target area A2, and the arrangement positions of lighting fixtures L calculated by the calculation unit 120 in operation example 2. In Fig. 5, target area A2 is shown as an area surrounded by a dashed-dotted rectangle, and the distribution of vertical illuminance in space S is depicted as a contour map of dashed-dotted lines.

[0086] Operation example 2 mainly shows the same operations as operation example 1, except for the following one point.

[0087] The one point is a point that the calculation unit 120 determines as the target area A2 in S40 based on the fact that the furniture indicated by the furniture information is the desk T1 and the position in the space S where the desk T1 is placed.

[0088] In S40 of the second operation example, the calculation unit 120 determines the following area as the target area A2 based on the acquired furniture information. As an example, the calculation unit calculates the arrangement position based on the furniture information, with the area of ​​the horizontal plane in the space S as the target area A2. More specifically, the calculation unit 120 determines the area that overlaps with the position of the desk T1 when the space S is viewed vertically and is at the second height as the target area A2.

[0089] Here, the shape of the area overlapping with the position of the desk T1 (i.e., the target area A2) may be a straight line, a circle, etc. In this operation example, the shape of the target area A2 is a rectangle, the same as the shape of the desk T1 shown in FIG.

[0090] The target area A2 may be larger than the desk T1 when viewed vertically in the space S, and may be arranged to cover the periphery of the desk T1. When the shape of the target area A2 and the desk T1 is rectangular, the length of the short side of the target area A2 may be 1.1 to 3.0 times the length of the short side of the desk T1, and the length of the long side of the target area A2 may be 1.1 to 3.0 times the length of the long side of the desk T1.

[0091] The second height is the height from the floor surface of the space S to the eyes of the third user who uses the desk T1, and is, for example, any height from the floor surface of 130 cm to 170 cm. Here, the second height is 150 cm.

[0092] The third user who uses the desk T1 is assumed to be around the desk T1. The target area A2 determined as described above is set at the eye height of the third user who uses the desk T1.

[0093] Furthermore, the calculation unit 120 calculates the placement positions of the lighting fixtures L in the space S based on the fixture information so that the vertical illuminance of the target area A2 in the space S indicated by the space information satisfies a criterion (S50).

[0094] As described above, Fig. 5 shows the calculated positions of the lighting fixtures L. Here, ten lighting fixtures L are arranged on the ceiling surface. Fig. 5 also shows the calculated distribution of vertical illuminance in the target area A2 caused by the lighting fixtures L.

[0095] The output unit 112 outputs the calculated arrangement position (S60). In this operation example, the output unit 112 further outputs the position of the target area A2 in the space S and the distribution of vertical illuminance.

[0096] At this time, the display unit 220 displays Fig. 5 as an image showing the placement position, the position of the target area A2 in the space S, and the distribution of vertical illuminance. This makes it easier for the second user U2 to understand the position of the target area A2 and the distribution of vertical illuminance.

[0097] [Example 3] Operation example 3 of the lighting design support system 1 will be described below. Fig. 6 is a diagram for explaining the processing of the calculation unit 120 in operation example 3 according to the present embodiment. Fig. 6 is a diagram of space S viewed in the vertical direction. Fig. 6 shows the shape (rectangle) of space S indicated by the spatial information, target area A3, and the arrangement positions of lighting fixtures L calculated by the calculation unit 120 in operation example 3. Note that in Fig. 6, target area A3 is shown as an area surrounded by a dashed-dotted rectangle, and the distribution of vertical illuminance in space S is depicted as a contour map of dashed-dotted lines.

[0098] Operation example 3 mainly shows the same operations as operation example 1, except for the following two points.

[0099] The two points are that the spatial information acquired by the acquisition unit 111 in S10 does not include furniture information, and that the area excluding the excluded area is determined as the target area A3.

[0100] In S10 of the operation example 3, the calculation unit 120 acquires space information that does not include furniture information.

[0101] Moreover, in the operation example 3, the calculation unit 120 does not perform the process of S40, but performs the following process instead of S40: In the operation example 3, the calculation unit 120 determines the region excluding the exclusion region as the target region A3.

[0102] The excluded area is an area up to a predetermined distance from the end of the space S when the space S is viewed vertically. The end of the space S is, for example, the outline of the space S in Fig. 6, and is the wall, windows, and doors of the space S. Although not shown, in the case where a pillar is provided to connect to the floor and ceiling of the space S, the end of the space S may be the outline of the pillar.

[0103] In this embodiment, the shape of the space S is rectangular, so Fig. 6 shows four predetermined distances B1 to B4 corresponding to the four sides of the rectangle. Here, the predetermined distances B1 to B4 may be 10 cm or more and 150 cm or more, more preferably 30 cm or more and 120 cm or more, and even more preferably 50 cm or more and 100 cm or more. Each of the predetermined distances B1 to B4 in this operation example is 110 cm. Also, each of the predetermined distances B1 to B4 may be a different value.

[0104] In this case, the exclusion area is an area up to 110 cm from the walls, windows, doors, pillars, etc. of the space S. That is, the exclusion area is an area near the walls, windows, doors, pillars, etc. of the space S. In other words, the exclusion area is an area near the corners of the space S. For example, when the type of the space S is a dining room, shelves and passages are often arranged in the exclusion area. That is, the exclusion area is an area where it is assumed that there is a low possibility of a third user using the space S. More specifically, such an exclusion area is an area where it is assumed that the third user will only stay for a short time (for example, several seconds to several tens of seconds). Therefore, the calculation unit 120 calculates the area excluding the exclusion area as the target area A3.

[0105] In this operation example, the calculation unit 120 further calculates the arrangement position by setting an area of ​​the horizontal plane in the space S, excluding the exclusion area, as a target area A3.

[0106] That is, in the operation example 3, the target area A3 is a plane parallel to the horizontal direction, more specifically, a plane parallel to the floor surface of the space S. The shape of the target area A3 may be a circle, a polygon, or the like when the space S is viewed in the vertical direction, but is rectangular here.

[0107] Moreover, the target area A3 may be an area of ​​the above-mentioned first height or second height. For example, when a chair C1 is arranged as a piece of furniture in the space S, the target area A3 may be an area of ​​the first height, and when a desk T1 is arranged as a piece of furniture in the space S, the target area A3 may be an area of ​​the second height. Here, the target area A3 is an area of ​​the first height, and the first height is 120 cm.

[0108] As described above, the target area A3 according to the third operation example is set at the eye height of the third user sitting on the chair C1, excluding the exclusion area.

[0109] Furthermore, the calculation unit 120 calculates the placement positions of the lighting fixtures L in the space S based on the fixture information so that the vertical illuminance of the target area A3 in the space S indicated by the space information satisfies a criterion (S50).

[0110] As described above, Fig. 6 shows the calculated positions of the lighting fixtures L. Here, 28 lighting fixtures L are arranged on the ceiling surface. Fig. 6 also shows the calculated distribution of vertical illuminance in the target area A3 caused by the lighting fixtures L.

[0111] The output unit 112 outputs the calculated arrangement position (S60). In this operation example, the output unit 112 further outputs the position of the target area A3 in the space S and the distribution of vertical illuminance.

[0112] At this time, the display unit 220 displays Fig. 6 as an image showing the placement position, the position of the target area A3 in the space S, and the distribution of vertical illuminance. This makes it easier for the second user U2 to understand the position of the target area A3 and the distribution of vertical illuminance.

[0113] [Example 4] Hereinafter, the fourth operation example of the lighting design support system 1 will be described. FIG. 7 is a diagram for explaining the processing of the calculation unit 120 in the fourth operation example according to the present embodiment. (a) of FIG. 7 is a diagram showing the space S viewed in the vertical direction. (a) of FIG. 7 shows the shape (rectangle) of the space S shown in the spatial information, the target area A4, and the arrangement positions of the lighting fixtures L calculated by the calculation unit 120 in the fourth operation example. In (a) of FIG. 7, the target area A4 is shown as an area surrounded by a dashed-dotted rectangle. (b) and (c) of FIG. 7 are diagrams showing the space S viewed in the vertical direction like (a) of FIG. 7, and in addition to the diagram shown in (a) of FIG. 7, the distribution of the vertical illuminance in the target area A4 is shown as a contour map of two-dot dashed lines.

[0114] Operation example 4 mainly shows the same operations as operation example 1, except for the following three points.

[0115] The three points are that the spatial information acquired by the acquisition unit 111 in S10 does not include fixture information, that the acquisition unit 111 acquires a selection area selected by the second user U2, who is the client, and that the calculation unit 120 determines the selection area as the target area A4.

[0116] In this operation example, before S10, the reception unit 210 of the information terminal 200 receives an operation for selecting a selected area. That is, the second user U2, who is the owner, performs an operation for selecting a predetermined area in the space S as the selected area, and the reception unit 210 receives the operation.

[0117] As described above, here, the selection area selected by the second user U2 is used as the target area A4. That is, the second user U2 can select the target area A4 by himself / herself. The second user U2 selects an area where it is assumed that a third user who uses the space S is likely to be present as the selection area. Here, as an example, the selection area is a plane parallel to the horizontal direction, more specifically, a plane parallel to the floor surface of the space S. The shape of the selection area may be a circle, a polygon, or the like when the space S is viewed vertically, but is a rectangle here.

[0118] Furthermore, the control unit 230 of the information terminal 200 acquires, from the terminal storage unit 240, selected area information indicating the position of the selected area in the space S as information corresponding to the above operation accepted by the acceptance unit 210.

[0119] Then, in S10 of the operation example 4, the calculation unit 120 acquires space information that does not include furniture information.

[0120] Also, in the operation example 4, for example, between S10 and S20, the acquisition unit 111 acquires region information indicating the position of a selection region in the space S that has been selected by the second user U2.

[0121] Furthermore, in operation example 4, the calculation unit 120 does not perform the process of S40, but performs the following process instead of S40. In operation example 4, the calculation unit 120 determines the placement position by setting the selected area indicated by the area information acquired by the acquisition unit 111 as the target area A4.

[0122] Next, the calculation unit 120 calculates the placement positions of the lighting fixtures L in the space S based on the fixture information so that the vertical illuminance of the target area A4 in the space S indicated by the space information satisfies a criterion (S50).

[0123] As shown in Fig. 7(a), the above selected area is used as the target area A4, and Fig. 7(a) also shows the calculated positions of the lighting fixtures L. Here, 28 lighting fixtures L are arranged on the ceiling surface.

[0124] Here, the detailed processing performed by the calculation unit 120 will be described.

[0125] The calculation unit 120 calculates the arrangement position such that the vertical illuminance of the target area A4 caused by the light based on the light emitted by the lighting device L and traveling in a first direction satisfies a criterion. Similarly, the calculation unit 120 calculates the arrangement position such that the vertical illuminance of the target area A4 caused by the light based on the light emitted by the lighting device L and traveling in a third direction satisfies a criterion. In addition, a second direction D2 is shown in (b) of Fig. 7, and a fourth direction D4 is shown in (c) of Fig. 7.

[0126] The third direction may be any direction parallel to the horizontal direction, and is, for example, the negative y-axis direction shown in Fig. 7. The fourth direction D4 is opposite to the third direction and is the positive y-axis direction. Note that the third direction corresponds to the first direction, and the fourth direction D4 corresponds to the second direction D2, so detailed description will be omitted.

[0127] In this case, light that meets the vertical illuminance criteria is more likely to reach the face of the third user facing the second direction D2 (x-axis positive direction) in the target area A4, more specifically, the eyes of the third user. Similarly, light that meets the vertical illuminance criteria is more likely to reach the face of the third user facing the fourth direction D4 (x-axis positive direction) in the target area A4, more specifically, the eyes of the third user.

[0128] In addition, in (b) and (c) of FIG. 7, the distribution of the vertical illuminance in the target area A4 is depicted in a contour map of a two-dot chain line. More specifically, in (b) of FIG. 7, the contour map shows the distribution of the vertical illuminance in the target area A4 by the light heading in the first direction. That is, in (b) of FIG. 7, the contour map shows the distribution of the vertical illuminance when the third user faces the second direction D2. In addition, in (c) of FIG. 7, the contour map shows the distribution of the vertical illuminance in the target area A4 by the light heading in the third direction. That is, in (c) of FIG. 7, the contour map shows the distribution of the vertical illuminance when the third user faces the fourth direction D4. More specifically, in (b) and (c) of FIG. 7, the vertical illuminance in the dotted area of ​​the target area A4 meets the criteria. That is, in this operation example, the calculation unit 120 calculates the arrangement positions of the lighting fixtures L in the space S based on the fixture information so that the vertical illuminance of a part of the target area A4 in the space S indicated by the space information satisfies the criterion.

[0129] Furthermore, the output unit 112 outputs the calculated arrangement position (S60). In this operation example, the output unit 112 outputs the position of the target area A4 in the space S, the second direction D2, and the fourth direction D4. Furthermore, the output unit 112 outputs the distribution of vertical illuminance in the target area A4 due to the light heading in the first direction, and the distribution of vertical illuminance in the target area A4 due to the light heading in the third direction.

[0130] The terminal communication unit 250 of the information terminal 200 acquires the arrangement position, the position of the target area A4 in the space S, and the second direction D2 and the fourth direction D4 output by the output unit 112. In addition, here, the terminal communication unit 250 acquires the distribution of vertical illuminance in the target area A4 due to the light heading in the first direction output by the output unit 112, and the distribution of vertical illuminance in the target area A4 due to the light heading in the third direction.

[0131] The display unit 220 of the information terminal 200 displays an image showing the acquired placement position and the position of the target area A1 in the space S. (a) of FIG. 7 is an example of the image. The display unit 220 also displays an image showing the acquired second direction D2 and the distribution of vertical illuminance in the target area A4 due to the light heading in the first direction. (b) of FIG. 7 is an example of the image. The display unit 220 also displays an image showing the acquired fourth direction D4 and the distribution of vertical illuminance in the target area A4 due to the light heading in the third direction. (c) of FIG. 7 is an example of the image.

[0132] In this way, by displaying the above image, the second user U2, who is the owner, can easily understand the arrangement positions of the lighting fixtures L, the position of the target area A4, and the distribution of vertical illuminance in the target area A4. In addition, the second user U2 can easily understand that light that meets the criteria for vertical illuminance reaches the third user by facing the second direction D2 or the fourth direction D4 in the target area A4.

[0133] Furthermore, the output section 112 may output content different from the above.

[0134] Specifically, the output unit 112 outputs a superimposed distribution of the vertical illuminance in the target area A4 caused by light heading in the first direction and a superimposed distribution of the vertical illuminance in the target area A4 caused by light heading in the third direction. Fig. 8 is a contour map showing a superimposed distribution of the vertical illuminance in the target area A4 caused by light heading in the first direction and a superimposed distribution of the vertical illuminance in the target area A4 caused by light heading in the third direction in operation example 4 according to the present embodiment.

[0135] Here, in Fig. 8, the distribution of vertical illuminance shown in Fig. 7 (b) and (c) is superimposed. In other words, the area with thick dots in Fig. 8 is an area where light that meets the standard of vertical illuminance reaches the eyes of the third user regardless of whether the third user faces the second direction D2 or the fourth direction D4. Similarly, the area with thin dots in Fig. 8 is an area where light that meets the standard of vertical illuminance reaches the eyes of the third user when the third user faces the second direction D2 or the fourth direction D4.

[0136] At this time, the display unit 220 displays Fig. 8 as an image showing the above two vertical illuminance distributions superimposed on each other. This makes it easier for the second user U2 to understand that light that meets the vertical illuminance criteria reaches the third user by facing the second direction D2 or the fourth direction D4 in the target area A4.

[0137] [Effects, etc.] In operation example 1 according to the present embodiment, lighting design support system 1 includes acquisition unit 111, calculation unit 120, and output unit 112. Acquisition unit 111 acquires spatial information indicating the shape of space S, device information indicating the performance of lighting device L, and reference information indicating a standard for vertical illuminance in space S. Based on the acquired device information, calculation unit 120 calculates an arrangement position of lighting device L in space S such that the vertical illuminance of target area A1 in space S indicated by the acquired spatial information satisfies the standard indicated by the acquired reference information. Output unit 112 outputs the calculated arrangement position.

[0138] As a result, in the placement position calculated by the calculation unit 120, the lighting device L can emit light that meets the standard for vertical illuminance toward the target area A1. In other words, when a third user is present in the target area A1, light that meets the standard for vertical illuminance reaches and is taken in by the eyes of the third user. As described above, the standard for vertical illuminance is the illuminance of light that can regulate the biorhythm of a person (third user). Therefore, the light is taken in by the eyes of the third user, and the biorhythm of the third user is regulated. In other words, the lighting design support system 1 according to this embodiment can support the design of the placement position of the lighting device L to regulate the biorhythm.

[0139] In addition, in the operational example 1, the standard is 2 to 20 times the recommended illuminance specified in JIS Z 9110:2011.

[0140] As a result, the standard for vertical illuminance is the illuminance of light that can better regulate the third user's biological rhythm. Therefore, by receiving such light into the third user's eyes, the third user's biological rhythm can be better regulated.

[0141] Furthermore, in the operation example 1, the space information includes furniture information that is information about furniture arranged in the space S. The calculation unit 120 determines the target area A1 based on the furniture information.

[0142] This enables the calculation unit 120 to determine an area where the third user is more likely to be present as the target area A1.

[0143] In addition, in the operation example 1, the furniture information indicates that the furniture is a chair C1 and the position of the chair C1 in the space S. The calculation unit 120 calculates the arrangement position by setting, as a target area A1, an area that overlaps with the position of the chair C1 when the space S is viewed vertically and that is at a first height that is the height from the floor surface of the space S to the eyes of a user sitting on the chair C1.

[0144] As a result, the target area A1 is located at the eye height of the third user sitting on the chair C1. Therefore, light that meets the vertical illuminance standard is more easily taken in by the eyes of the third user.

[0145] Furthermore, in the second operational example, the furniture information indicates that the furniture is a desk T1 and the position of the desk T1 in the space S. The calculation unit 120 calculates the placement position by setting, as a target area A2, an area that overlaps with the position of the desk T1 when the space S is viewed vertically and that is at a second height that is the height from the floor of the space S to the eyes of a user using the desk T1.

[0146] As a result, the target area A2 is located at eye height of the third user who uses the desk T1. Therefore, light that meets the vertical illuminance standard is more easily received by the eyes of the third user.

[0147] In addition, in the operation example 1, the calculation unit 120 calculates the arrangement position based on the fixture information, with the area of ​​the vertical plane in the space S as the target area A1.

[0148] This allows the vertical plane to be used as the target area A1.

[0149] In addition, in the second operational example, the calculation unit 120 calculates the placement position based on the furniture information, with the horizontal area in the space S as the target area A2.

[0150] This allows the horizontal plane to be used as the target area A2.

[0151] Moreover, in the operation example 4, the acquisition unit 111 acquires area information indicating the position of a selection area selected by a user in the space S. The calculation unit 120 calculates the arrangement position of the selection area indicated by the acquired area information as the target area A4.

[0152] This allows the second user U2 to select the target area A4 by himself / herself. The second user U2 can select an area where it is assumed that there is a high possibility that a third user who uses the space S is present as the selection area.

[0153] In addition, in the operation example 3, when the space S is viewed in the vertical direction, a region from the end of the space S to a predetermined distance B1 to B4 is set as an exclusion region. The calculation unit 120 calculates the arrangement position by setting an area of ​​the horizontal plane in the space S excluding the exclusion region as a target area A3.

[0154] As a result, the target area A3 is a horizontal area excluding the excluded area where the third user is unlikely to be present, and is set at eye height of the third user sitting on the chair C1. Therefore, light that meets the vertical illuminance standard is more easily received by the eyes of the third user.

[0155] In addition, in the operation example 3, the predetermined distances B1 to B4 are not less than 10 cm and not more than 150 cm.

[0156] This makes it easier for light that meets the vertical illuminance criteria to be received by the third user's eyes.

[0157] In addition, in the operation example 1, the output unit 112 outputs the position of the target area A1 in the space S.

[0158] This makes it easier for the second user U2, who is the owner, to understand the position of the target area A1.

[0159] In addition, in the second operational example, the output unit 112 outputs the distribution of vertical illuminance in the target area A2.

[0160] This makes it easier for the second user U2 to understand the distribution of vertical illuminance.

[0161] In addition, in the first operation example, the calculation unit 120 calculates the arrangement position such that the vertical illuminance of the target area A1 caused by the light emitted from the lighting device L and traveling in the first direction satisfies the acquired criterion. The output unit 112 outputs the arrangement position and the second direction D2 that is opposite to the first direction.

[0162] This makes it easier for light that meets the vertical illuminance criteria to reach the eyes of the third user facing the second direction D2. Also, the second user U2, who is the owner, can easily understand that light that meets the vertical illuminance criteria will reach the third user by facing the second direction D2 in the target area A1.

[0163] In addition, in operation example 4, the calculation unit 120 calculates the arrangement position such that the vertical illuminance of the target area A4 due to the light emitted from the lighting device L and traveling in the third direction satisfies the acquired criterion. The output unit 112 outputs the arrangement position, the second direction D2, and the fourth direction D4 that is opposite to the third direction.

[0164] This makes it easier for light that meets the vertical illuminance criteria to reach the eyes of the third user facing the fourth direction D4. Also, the second user U2, who is the owner, can easily understand that light that meets the vertical illuminance criteria will reach the third user by facing the fourth direction D4 in the target area A4.

[0165] Furthermore, in the fourth operational example, the output unit 112 outputs the distribution of vertical illuminance in the target area A4 due to the light traveling in the first direction, and the distribution of vertical illuminance in the target area A4 due to the light traveling in the third direction.

[0166] This makes it easier for the second user U2, who is the owner, to understand the distribution of vertical illuminance in the target area A4. Also, the second user U2 can easily understand that light that meets the criteria for vertical illuminance reaches the third user by facing the second direction D2 or the fourth direction D4 in the target area A4.

[0167] Furthermore, in the fourth operational example, the output unit 112 outputs a vertical illuminance distribution in the target area A4 due to light traveling in the first direction and a vertical illuminance distribution in the target area A4 due to light traveling in the third direction in a superimposed manner.

[0168] This allows the second user U2 to more easily understand that light that meets the vertical illuminance criteria reaches the third user by facing the second direction D2 or the fourth direction D4 in the target area A4.

[0169] In the operation example 1, the lighting design support method is a lighting design support method by the lighting design support system 1, and includes acquisition steps S10, S20, and S30, a calculation step S50, and an output step S60. The acquisition steps S10, S20, and S30 acquire spatial information indicating the shape of the space S, fixture information indicating the performance of the lighting fixture L, and reference information indicating a standard for vertical illuminance in the space S. The calculation step S50 calculates a placement position of the lighting fixture L in the space S based on the acquired fixture information such that the vertical illuminance of the target area A1 in the space S indicated by the acquired spatial information satisfies the standard indicated by the acquired reference information. The output step S60 outputs the calculated placement position.

[0170] In addition, in the first operational example, the computer program causes the computer to execute the above-described lighting design support method.

[0171] As a result, in the placement position calculated in calculation step S50, the lighting device L can emit light that meets the vertical illuminance standard toward the target area A1. In other words, when a third user is present in the target area A1, light that meets the vertical illuminance standard reaches and is taken in by the eyes of the third user. As described above, the standard for vertical illuminance is the illuminance of light that can regulate the biorhythm of a person (third user). Therefore, the light is taken in by the eyes of the third user, and the biorhythm of the third user is regulated. In other words, the lighting design support method according to the present embodiment can support the design of the placement position of the lighting device L to regulate the biorhythm.

[0172] (Other embodiments) Although the embodiment has been described above, the present invention is not limited to the above embodiment.

[0173] In the above embodiment, the process executed by a specific processing unit may be executed by another processing unit. In addition, the order of multiple processes may be changed, or multiple processes may be executed in parallel. In addition, the operation example 1, the operation example 2, the operation example 3, and the operation example 4 of the above embodiment may be arbitrarily combined.

[0174] When the receiving unit 210 of the information terminal 200 receives the above-mentioned device selection operation, the receiving unit 210 may receive the number of selected lighting devices L to be used. In other words, the first user U1 and the second user U2 can each specify the number of selected lighting devices L to be used.

[0175] In the above embodiment, each component may be realized by executing a software program suitable for each component. Each component may be realized by a program execution unit such as a CPU or a processor reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory.

[0176] Furthermore, each component may be realized by hardware. For example, each component may be a circuit (or an integrated circuit). These circuits may form a single circuit as a whole, or each may be a separate circuit. Furthermore, each of these circuits may be a general-purpose circuit, or a dedicated circuit.

[0177] Furthermore, the general or specific aspects of the present invention may be realized as a system, an apparatus, a method, an integrated circuit, a computer program, or a computer-readable recording medium such as a CD-ROM, or may be realized as any combination of a system, an apparatus, a method, an integrated circuit, a computer program, and a recording medium.

[0178] For example, the present invention may be realized as a behavior estimation method executed by a computer such as a lighting design support system, or as a program for causing a computer to execute such a behavior estimation method. The present invention may also be realized as a program for causing a general-purpose computer to operate as the information terminal of the above-mentioned embodiment. The present invention may also be realized as a computer-readable non-transitory recording medium on which these programs are recorded.

[0179] In addition, the present invention also includes forms obtained by applying various modifications to each embodiment that a person skilled in the art may think of, or forms realized by arbitrarily combining the components and functions of each embodiment within the scope that does not deviate from the spirit of the present invention. [Explanation of symbols]

[0180] 1. Lighting design support system 111 Acquisition Department 112 Output Department 120 Calculation Department 220 Display unit 230 Control Department A1, A2, A3, A4 Target Areas B1, B2, B3, B4 specified distance C1 chair D2 2nd direction D4 4th direction L Lighting fixtures S Space T1 Machine

Claims

1. an acquisition unit that acquires space information indicating a shape of a space, lighting device information indicating performance of lighting devices, and reference information indicating a reference for vertical illuminance in the space; a calculation unit that calculates, based on the acquired device information, positions of the lighting devices in the space such that a vertical illuminance of a target area in the space indicated by the acquired spatial information satisfies the criteria indicated by the acquired reference information; and an output unit that outputs the calculated arrangement position, The calculation unit calculates the arrangement position such that a vertical illuminance of the target area due to light that is based on light emitted by the lighting device and travels in a first direction satisfies the acquired criterion; and The output unit outputs the arrangement position and a second direction opposite to the first direction. Lighting design support system.

2. The standard is between 2 and 20 times the recommended illuminance specified in JIS Z 9110:2011. The lighting design support system according to claim 1 .

3. The space information includes furniture information that is information regarding furniture to be arranged in the space, The calculation unit determines the target area based on the furniture information.

3. The lighting design support system according to claim 1.

4. The furniture information indicates that the furniture is a chair and the position of the chair in the space, The calculation unit calculates the placement position by using, as the target area, an area that overlaps with the position of the chair when the space is viewed in the vertical direction and that is at a first height that is a height from a floor surface of the space to the eyes of the user sitting on the chair. The lighting design support system according to claim 3.

5. The furniture information indicates that the furniture is a desk and the position of the desk in the space, The calculation unit calculates the placement position by using, as the target area, an area that overlaps with the position of the desk when the space is viewed in a vertical direction and that is at a second height that is a height from a floor surface of the space to the eyes of a user who uses the desk. The lighting design support system according to claim 3.

6. The calculation unit calculates the placement position based on the furniture information, with a vertical plane area or a horizontal plane area in the space as the target area. The lighting design support system according to any one of claims 3 to 5.

7. the acquisition unit acquires area information indicating a position of a selection area in the space selected by a user; The calculation unit calculates the arrangement position by using the selected area indicated by the acquired area information as the target area.

3. The lighting design support system according to claim 1.

8. When the space is viewed vertically, if a region from an end of the space to a predetermined distance is defined as an exclusion region, The calculation unit calculates the arrangement position by using an area of ​​a horizontal plane in the space excluding the exclusion area as the target area. The lighting design support system according to any one of claims 1 to 7.

9. The predetermined distance is equal to or greater than 10 cm and equal to or less than 150 cm. The lighting design support system according to claim 8.

10. The output unit outputs a position of the target region in the space. The lighting design support system according to any one of claims 1 to 9.

11. The output unit outputs a distribution of vertical illuminance in the target area. The lighting design support system according to any one of claims 1 to 10.

12. The calculation unit calculates the arrangement position such that a vertical illuminance of the target area due to light based on light emitted by the lighting device and traveling in a third direction satisfies the acquired criterion; and The output unit outputs the arrangement position, the second direction, and a fourth direction that is opposite to the third direction. The lighting design support system according to claim 1 .

13. The output unit outputs a distribution of vertical illuminance in the target area due to light traveling in the first direction and a distribution of vertical illuminance in the target area due to light traveling in the third direction. The lighting design support system according to claim 12.

14. The output unit outputs a distribution of vertical illuminance in the target area caused by the light traveling in the first direction and a distribution of vertical illuminance in the target area caused by the light traveling in the third direction in a superimposed manner. The lighting design support system according to claim 12.

15. A lighting design support method using a lighting design support system, comprising: An acquisition step of acquiring space information indicating a shape of a space, lighting device information indicating performance of lighting devices, and reference information indicating a reference for vertical illuminance in the space; a calculation step of calculating positions of the lighting fixtures in the space based on the acquired fixture information so that the vertical illuminance of a target area in the space indicated by the acquired spatial information satisfies the standard indicated by the acquired standard information; and an output step of outputting the calculated arrangement position, In the calculation step, the arrangement position is calculated so that a vertical illuminance of the target area due to light based on light emitted by the lighting device and traveling in a first direction satisfies the acquired criterion; In the output step, the arrangement position and a second direction opposite to the first direction are output. Lighting design support method.

16. A computer program for causing a computer to execute the lighting design support method according to claim 15.

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