Illumination control system, illumination control method, and program

Abstract

To provide an illumination control system capable of suppressing impair the effect of the illumination environment provided in a target space by external light.SOLUTION: An illumination control system 100 includes a control unit 11 and a first acquisition unit 12. The control unit 11 is configured to control each illumination environment in multiple target spaces 4 by controlling the lighting loads 2 assigned to each of multiple target spaces 4 included in a control target area. The first acquisition unit 12 acquires area information relevant to a control target area. The lighting load 2 includes a first load 21 with light diffuse type distribution characteristics, and a second load 22 with condensing type light distribution characteristics. The control unit 11 is configured so as to execute an exclusion control to control so that the illuminance of first load 21 does not become an illumination environment where the illuminance is lower than the specified illuminance for the target space 4 which is specified based on the area information acquired by the first acquisition unit 12 and includes a specific position within a predetermined distance from the outer edge of the control target are out of the multiple target spaces 4.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a lighting control system, a lighting control method, and a program.

Background Art

[0002] In recent years, a working style called ABW (Activity Based Working), in which a worker selects a workplace according to the work content, has attracted attention, and offices introducing ABW (ABW offices) have emerged. An ABW office is an office in which a space design is made to improve the performance of an organization by preparing a space suitable for the work content of workers. In an ABW office, for example, by changing the brightness, light color, etc. of lighting, a work space where it is easy to concentrate on each person's work, a co-creation space for sharing knowledge, etc., are designed as intended spaces.

[0003] In addition, a free address office designed so that a worker does not have a fixed seat and can freely change the seat to work is also known. For example, Patent Document 1 discloses a system related to a free address office. The system disclosed in Patent Document 1 includes an entrance / exit management unit that counts the number of people present in the office, a work area determination unit that determines a work area based on the counted number of people present, and a facility control unit that controls to stop facilities corresponding to areas other than the determined work area.

[0004] In addition, Patent Document 2 discloses a lighting control device. This lighting control device determines whether each divided area obtained by previously dividing a lighting area into a plurality of areas based on the movement speed of a person in the lighting area detected by human body information detection means is a staying area or a non-staying area where a person stays. Then, the lighting control means performs lighting control on the lighting fixtures arranged in the divided areas based on the determination result.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

[0006] The present invention provides an illumination control system, an illumination control method, and a program in which the effect of the illumination environment provided in a target space is less likely to be impaired by external light. [Means for Solving the Problems]

[0007] An illumination control system according to an aspect of the present invention includes a control unit and a first acquisition unit. The control unit controls the dimming of lighting loads assigned to each of a plurality of target spaces included in a control target area, thereby controlling the lighting environment of each of the plurality of target spaces. The first acquisition unit acquires area information regarding the control target area. The lighting load includes a first load having a diffused light distribution characteristic and a second load having a condensed light distribution characteristic. For a target space where external light can enter, including a specific position within a predetermined distance from the outer edge of the control target area specified based on the area information acquired by the first acquisition unit among the plurality of target spaces, the control unit executes exclusion control to control so that the illumination level of the first load does not become an illumination level lower than a predetermined illumination level. The area information is information indicating a position that can identify the outer edge in the control target area.

[0008] The lighting control method according to one aspect of the present invention includes a control step and an acquisition step. In the control step, the lighting environment of each of the plurality of target spaces is controlled by controlling the dimming of the lighting loads assigned to each of the plurality of target spaces included in the control target area. In the acquisition step, area information regarding the control target area is acquired. The lighting load includes a first load having a diffused light distribution characteristic and a second load having a condensing light distribution characteristic. In the control step, among the plurality of target spaces, for a target space where external light can enter, including a specific position within a predetermined distance from the outer edge of the control target area specified based on the area information acquired in the acquisition step, exclusion control is executed to control so that the illuminance of the first load does not become an illuminance lower than a predetermined illuminance. The area information is information indicating a position that can identify the outer edge in the control target area.

[0009] A program according to one aspect of the present invention causes one or more processors to execute the lighting control method.

Advantages of the Invention

[0010] The lighting control system, lighting control method, and program of the present invention have an advantage that the effect of the lighting environment provided in the target space is less likely to be impaired by external light.

Brief Description of the Drawings

[0011]

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DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, the embodiments will be specifically described with reference to the drawings. Note that each of the embodiments described below shows a comprehensive or specific example. The numerical values, shapes, materials, components, arrangement positions and connection forms of the components, steps, order of steps, etc. 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, the components not described in the independent claims are described as optional components.

[0013] Note that each figure is a schematic diagram and is not necessarily drawn precisely. Also, in each figure, substantially the same configuration is denoted by the same reference numeral, and duplicate explanations may be omitted or simplified.

[0014] (Embodiment) [Configuration] First, the lighting control system 100 according to the embodiment will be described. FIG. 1 is a block diagram showing the functional configuration of the lighting control system 100 according to the embodiment. FIG. 2 is a plan view showing the outline of the control target area A1 according to the embodiment. FIG. 3 is an explanatory diagram of the lighting load 2 according to the embodiment.

[0015] The lighting control system 100 according to the embodiment is used in a control target area A1 where there are a plurality of target spaces 4 where a user U1 (see FIG. 3) such as in an office 3 performs work, and is a system for controlling the lighting environment in each of such a plurality of target spaces 4. In the embodiment, the control target area A1 is the entire office 3, but it may be a part of the office 3.

[0016] In the embodiment, it is assumed that the lighting control system 100 is used in an ABW (Activity Based Working) type office 3 where a user U1 can freely select a work place according to, for example, the work they want to do. Here, "ABW" refers to a way of working in which a user U1 (such as an employee) selects a place to work or a desk etc. according to the work content. In an ABW type office, when the user U1 performs work that requires concentration, they can select a place with relatively high sound insulation, and when having a meeting, they can select a relaxing place such as a sofa.

[0017] Note that the lighting control system 100 is not limited to an ABW type office, and may be used in a free address type office, or may be used in other spaces as long as it is a space where a user U1 can freely select a work place according to the work they want to do. For example, the lighting control system 100 may be used in an educational facility such as a primary school, junior high school, high school, or university, or may be used in a public facility such as a community center or library, or may be used in a store or commercial facility.

[0018] In the example shown in FIG. 2, the office 3 has a plurality (here, six) of target spaces 4. In each target space 4, furniture 6 (see FIG. 3) such as a desk for one or more users U1 to perform work is installed. The work performed by the user U1 is, for example, work using an information terminal possessed by the user U1 such as a laptop type personal computer. Note that the information terminal may be a desktop type personal computer, or may be a smartphone or tablet terminal etc.

[0019] In the example shown in FIG. 2, the adjacent target spaces 4 are not partitioned, but may be partitioned by, for example, a wall or furniture. As an example, the office 3 may be composed of a plurality of rooms partitioned by a wall or furniture. In this case, the target space 4 may be each of the plurality of rooms, or may be a part of the plurality of rooms.

[0020] In each target space 4, a lighting load 2 is installed. In the embodiment, the lighting load 2 is installed on the ceiling of the target space 4. Of course, the lighting load 2 may be installed not only on the ceiling of the target space 4 but also on furniture such as a wall, a floor, or a desk. The lighting load 2 provides an illumination environment for the target space 4 by illuminating the target space 4 with illumination light. The parameters of the illumination environment may include, as an example, the illuminance of the illumination light, the color temperature (light color), or the light distribution. The lighting load 2 installed in the target space 4 has, as shown in FIG. 3, one or more first loads 21 and one or more second loads 22.

[0021] The first load 21 is a base light as ambient lighting that uniformly illuminates the target space, and includes a light source having a solid light-emitting element such as an LED (Light Emitting Diode). That is, the first load 21 has a diffused light distribution characteristic. Note that the solid light-emitting element used for the first load 21 is not limited to an LED, and may be an organic EL (Electro-Luminescence) element or the like. Further, the first load 21 is not limited to a light source having a solid light-emitting element, and may be a fluorescent lamp or the like.

[0022] The second load 22 is a spotlight as a task light, and includes a light source having a solid light-emitting element such as an LED. That is, the second load 22 has a condensing light distribution characteristic. Note that the second load 22 is not limited to a spotlight, and may be, for example, a stand light, a down light, or a universal down light. Further, the solid light-emitting element used for the second load 22 is not limited to an LED, and may be an organic EL element or the like. Furthermore, the second load 22 is not limited to a light source having a solid light-emitting element, and may be a fluorescent lamp or the like.

[0023] Here, the light irradiation area of the lighting load 2 in the target space 4 will be described. The first load 21 is installed so as to irradiate the entire target space 4 with light. On the other hand, the second load 22 is installed so as to irradiate the upper surface of the furniture 6 (here, a desk), which is a part of the target space 4, with light. Here, the upper surface of the furniture 6 is, for example, an area where the user U1 performs work using an information terminal. In other words, the upper surface of the furniture 6 is the work area of the user U1. That is, the second load 22 is provided in the target space 4 so as to irradiate the work area of the user U1 in the target space 4 with light.

[0024] By the way, in the embodiment, in two adjacent spaces, the lighting load 2 installed in one space does not necessarily have to strictly affect only the lighting environment of one space, and it is allowed to affect the other space. That is, in any target space 4, it is sufficient that the lighting environment provided by the lighting load 2 corresponding to the target space 4 is the main lighting environment, and even if there is an influence from the lighting load 2 corresponding to a space different from the target space 4, it is only necessary that it hardly affects the lighting environment of the target space 4. This is because it is considered that the influence exerted by the lighting load 2 corresponding to a space different from the target space 4 on the user U1 existing in the target space 4 at this time is limited.

[0025] As shown in FIG. 1, the lighting control system 100 includes a control unit 11, a first acquisition unit 12, a second acquisition unit 13, a third acquisition unit 14, a first input reception unit 15, a second input reception unit 16, and a storage unit 17. In the embodiment, the lighting control system 100 only needs to include at least the control unit 11 and the first acquisition unit 12, and does not necessarily need to include the second acquisition unit 13, the third acquisition unit 14, the first input reception unit 15, the second input reception unit 16, and the storage unit 17. The lighting control system 100 may be installed in the office 3 or may be installed at a remote location away from the office 3.

[0026] The control unit 11 can communicate with the lighting loads 2 installed in each target space 4, and controls each lighting load 2 by transmitting a lighting control signal thereto. That is, the control unit 11 controls the lighting load 2 for each target space 4. In the embodiment, the control unit 11 controls both the dimming and color adjustment of each lighting load 2. The communication between the control unit 11 and each lighting load 2 may be wired communication, wireless communication, or the communication standard is not particularly limited.

[0027] In this way, by controlling the lighting environment of each target space 4, for example, it is possible to make the lighting environment different for each target space 4, and a so-called zoning effect can be expected.

[0028] Here, the zoning effect means, for example, a sense of delimitation in the perception of space, and may include an effect that makes it easier for the user U1 to recognize that a plurality of spaces are different spaces in appearance. Further, the zoning effect may include an effect that facilitates a change in the behavior or movement line of the user U1 as intended by the zoning, based on the perception by the user U1. For example, assume that zoning is performed for an arbitrary space with the intention of making it a space where the user U1 can easily perform work that requires concentration. In this case, if the user U1 who sees the space uses the space mainly for the purpose of performing work that requires concentration, it can be said that the zoning effect has been exerted.

[0029] Further, the zoning effect may include an effect in which when the user U1 uses the actually zoned space, the subjective effect / feeling of the user U1, or the physiological / psychological / biological effect shows a tendency according to the main idea of the zoning. For example, assume that zoning is performed for an arbitrary space with the intention of making it a space where the user U1 can easily perform work that requires concentration, and the user U1 uses the space. In this case, if the user U1 obtains a feeling of being able to concentrate by using the space, or if an index / data suggesting that the user U1 was concentrating is obtained as a psychological / biological effect, it can be said that the zoning effect has been exerted.

[0030] By controlling the lighting load 2 installed in the target space 4 as described above, it is possible to zone the target space 4 without using fixtures or furniture. Therefore, it is easy to enhance the design quality of the target space 4, and zoning that can instantaneously change the layout of the office 3 by controlling the lighting load 2 becomes possible. As an example, changing the control parameter of the color temperature (light color) of the light emitted by the lighting load 2 in the target space 4 is completed, for example, in a few seconds. In this case, as a result, it is possible to change the layout of the office 3 in a few seconds. Here, if the layout of the office 3 is changed by manually moving fixtures or furniture, it takes 60 minutes, several hours, or one day, and in some cases, several days. From this point, the zoning by controlling the lighting load 2 as described above can achieve extremely remarkable effects.

[0031] By zoning by the above control, it is possible to change the layout of the office 3 in a short cycle such as every hour, every day, or every month as compared with changing the layout of the office by changing the arrangement of conventional fixtures or furniture.

[0032] As described above, in the embodiment, the control unit 11 controls the lighting environment of each of the plurality of target spaces 4 by controlling the lighting load 2 assigned to each of the plurality of target spaces 4 included in the control target area A1. Therefore, in the embodiment, the control unit 11 can provide the same lighting environment for all the target spaces 4 or provide different lighting environments for each other.

[0033] Here, in the embodiment, the control unit 11 can further execute exclusion control. The exclusion control means that, for the target space 4 including the specific position P1 among the plurality of target spaces 4, control is performed so that the illumination environment does not become an illumination environment in which the illuminance of the first load 21 is lower than a predetermined illuminance. The specific position P1 is a position inside a predetermined distance D1 from the outer edge A11 of the control target area A1 specified based on the area information acquired by the first acquisition unit 12 described later.

[0034] The outer edge A11 is, for example, a wall or the like and is a boundary with another area of the control target area A1. The other area mentioned here may be a room adjacent to the room having the control target area A1, or may be outside the facility having the control target area A1. Here, the outer edge A11 not only simply forms a boundary between the control target area A1 and another area, but may also have a function of taking in external light L1 from the other area into the control target area A1. The external light L1 is light incident from outside the control target area A1 into the control target area A1. In the embodiment, the external light L1 is sunlight. Also, the external light L1 may include, for example, illumination light from a room adjacent to the room having the control target area A1. For example, the outer edge A11 may include not only a simple wall but also a partition member 5 such as a window 51, or a translucent door or wall that can take in the external light L1.

[0035] Therefore, in the target space 4 including the specific position P1, in other words, in the target space 4 close to the outer edge A11, the illuminance increases due to the incidence of the external light L1, which may affect the lighting environment provided by controlling the lighting load 2. Thus, in the embodiment, the control unit 11 performs exclusion control so as not to provide a lighting environment that darkens the target space 4 for the target space 4 close to the outer edge A11 where the illuminance may increase due to the incidence of the external light L1 in this way.

[0036] Examples of the exclusion control by the control unit 11 are listed below. In the following, as shown in FIG. 2, it is assumed that the control target area A1 has a total of six target spaces 4, namely, a first target space 41, a second target space 42, a third target space 43, a fourth target space 44, a fifth target space 45, and a sixth target space 46, for explanation.

[0037] FIG. 4 is an explanatory diagram of an example of the exclusion control by the control unit 11 according to the embodiment. In the example shown in FIG. 4, the control unit 11 identifies the outer edge A11 of the control target area A1 based on the area information acquired by the first acquisition unit 12, but does not identify whether the partition member 5 such as the window 51 is included in the outer edge A11. In FIG. 4, the target space 4 with solid-line hatching represents the target space 4 for which the exclusion control is executed. The same applies to FIGS. 5 and 6 described later. In the example shown in FIG. 4, the first target space 41, the second target space 42, the fifth target space 45, and the sixth target space 46 adjacent to the outer edge A11 of the control target area A1 all include a specific position P1 inside a predetermined distance D1 from the outer edge A11. Therefore, in the example shown in FIG. 4, the control unit 11 executes the exclusion control for each of these first target space 41, second target space 42, fifth target space 45, and sixth target space 46.

[0038] FIG. 5 is an explanatory diagram of another example of the exclusion control by the control unit 11 according to the embodiment. In the example shown in FIG. 5, the control unit 11 not only identifies the outer edge A11 of the control target area A1 based on the area information acquired by the first acquisition unit 12, but also identifies whether the partition member 5 such as the window 51 is included in the outer edge A11. That is, the exclusion control as shown in FIG. 5 is executed when the area information includes information on whether a window 51 (partition member 5) that can take in the external light L1 into the control target area A1 is provided on the outer edge A11. In the example shown in FIG. 5, the first target space 41, the second target space 42, and the sixth target space 46 adjacent to the window 51 in the outer edge A11 of the control target area A1 all include a specific position P1 inside a predetermined distance D1 from the window 51. Note that the fifth target space 45 is adjacent to the outer edge A11 but not adjacent to the window 51, so it is excluded from the target of the exclusion control. Therefore, in the example shown in FIG. 5, the control unit 11 executes the exclusion control for each of the first target space 41, the second target space 42, and the sixth target space 46.

[0039] FIG. 6 is an explanatory diagram of still another example of the exclusion control by the control unit 11 according to the embodiment. In FIG. 6, only a part of the control target area A1 is illustrated. In the example shown in FIG. 6, the control unit 11 specifies the outer edge A21 of the specific area A2 based on the area information acquired by the first acquisition unit 12. Here, the specific area A2 is an area in the control target area A1 where the lighting load 2 is not installed, for example, because a window 51 for taking in outside light L1 is provided on the ceiling. And in the example shown in FIG. 6, the control unit 11 also executes exclusion control for the target space 4 including a position inside the outer edge A21 of the specific area A2 by a predetermined distance D2. In this way, the control unit 11 may execute exclusion control not only for the target space 4 close to the outer edge A11 of the control target area A1 but also for the target space 4 close to the outer edge A21 of the specific area A2 inside the control target area A1.

[0040] In the embodiment, the predetermined illuminance is, for example, 520 lx (lux). That is, in the embodiment, the control unit 11 executes exclusion control so that the lighting environment in which the illuminance of the first load 21 is lower than 520 lx does not occur for the target space 4 including the specific position P1. Note that the predetermined illuminance does not have to exactly match 520 lx, and for example, it may be allowed to vary within a range of about ± several %. The reason why the predetermined illuminance is 520 lx will be described in detail in [First Verification] described later. Whether the lighting environment has an illuminance of the first load 21 equal to or higher than the predetermined illuminance is determined by the measured illuminance result of a measuring device such as a color illuminance meter or the illuminance result acquired by the third acquisition unit 14 described later.

[0041] Also, in the embodiment, the predetermined distance D1 is, for example, 2 m. That is, in the embodiment, the control unit 11 performs exclusion control on the target space 4 including the specific position P1 located 2 m inside from the outer edge A11 of the control target area A1. Note that the predetermined distance D1 does not have to exactly match 2 m, and for example, it may be allowed to vary within a range of about ± several %. The reason why the predetermined distance D1 is 2 m will be described in detail in [Second Verification] described later. Whether the exclusion control is being executed for the target space 4 including the specific position P1 located inside the predetermined distance D1 from the outer edge A11 is determined based on the measurement result of the distance by the measurer, or the distance result acquired by the first acquisition unit 12 described later, etc.

[0042] Note that the specific position P1 may be defined as follows. FIG. 7 is an explanatory diagram of the specific position P1 according to the embodiment. As shown in FIG. 7, it is assumed that the first loads 21 are installed at regular intervals D11 in the control target area A1. Then, the specific position P1 may be defined as a position inside by a fixed interval D11 from the first load 21 closest to the outer edge A11. Note that in FIG. 7, only a part of the control target area A1 is illustrated.

[0043] As an example, assume that the vertical dimension of the outer edge A11 of the control target area A1 is 10 m, the horizontal dimension is 20 m, and the height dimension is 2.7 m, and windows 51 are provided over the entire vertical outer edge A11. Also assume that a plurality of first loads 21 having an illumination performance of 6900 lm (lumens) are set at regular intervals D11 on the ceiling of the control target area A1. In this case, the specific position P1 is the position of the second first load 21 counted from the outer edge A11 along the vertical direction. And the distance between the first load 21 and the outer edge A11 is, for example, about 2.6 m, which is a distance corresponding to the predetermined distance D1.

[0044] In the embodiment, the control unit 11 executes exclusion control at least during the daytime. For example, the control unit 11 executes exclusion control during the time period corresponding to daytime (for example, the time period from sunrise to sunset) by measuring time with a timer or the like, and does not execute exclusion control in other time periods. Of course, the control unit 11 may always execute exclusion control regardless of whether it is daytime or not.

[0045] The first acquisition unit 12 acquires area information regarding the control target area A1. The area information is information that can identify the outer edge A11 in the control target area A1, and includes, for example, information indicating the position of the outer edge A11 in the control target area A1, and information indicating the position of each target space 4 in the control target area A1.

[0046] The first acquisition unit 12 acquires area information, for example, in response to an input by the user U1. The user U1 can input area information, for example, using an information terminal used by the user U1. The area information input by the information terminal is transmitted from the information terminal to the lighting control system 100. Thereby, the first acquisition unit 12 can acquire the area information. The area information acquired by the first acquisition unit 12 is referred to by the control unit 11.

[0047] Note that it is preferable to allow only those with authority among the users U1 to input the area information. In this case, the authority is preferably given to, for example, the administrator of the lighting control system 100.

[0048] Further, the first acquisition unit 12 may acquire, as area information, input information for setting a predetermined distance D1 by the user U1. For example, the user U1 can perform an input to set the predetermined distance D1 to a desired value using the information terminal. That is, the predetermined distance D1 can be appropriately changed according to the desire of the user U1.

[0049] In addition, the first acquisition unit 12 may acquire drawing information indicating the control target area A1 as area information. The drawing information is, for example, image data showing a design drawing of the control target area A1. For example, the user U1 can transmit image data to the lighting control system 100 using an information terminal. FIG. 8 is a diagram showing an example of the drawing information of the control target area A1 according to the embodiment. FIG. 8 shows only a part of the image data showing the plan view of the control target area A1.

[0050] The first acquisition unit 12 can acquire the drawing information as area information by performing appropriate image analysis processing on the drawing information. For example, the first acquisition unit 12 can acquire the dimensions of the control target area A1 as area information by referring to parameters such as the scale included in the drawing information. Further, for example, the first acquisition unit 12 can acquire whether or not the window 51 (partition member 5) is included in the outer edge A11 of the control target area A1 as area information by performing image analysis processing such as pattern matching on the drawing information.

[0051] The second acquisition unit 13 acquires weather information related to the weather. The second acquisition unit 13 can acquire weather information, for example, by communicating with a weather server that provides weather information via an external network such as the Internet. When the second acquisition unit 13 acquires weather information, the control unit 11 can execute exclusion control when the weather information acquired by the second acquisition unit 13 indicates clear weather. That is, the control unit 11 can execute exclusion control only when external light L1 that can affect the lighting environment enters the control target area A1 based on the weather information. Note that whether or not the control unit 11 refers to the weather information acquired by the second acquisition unit 13 can be appropriately set by the user U1.

[0052] The third acquisition unit 14 acquires the illuminance of the target space 4 including the specific position P1. The third acquisition unit 14 can acquire the illuminance of the target space 4 including the specific position P1 by, for example, communicating with an illuminance sensor installed in the control target area A1 and obtaining the detection result of the illuminance sensor. When the third acquisition unit 14 acquires the above illuminance, the control unit 11 can execute exclusion control when the illuminance acquired by the third acquisition unit 14 exceeds a threshold value. That is, the control unit 11 can execute exclusion control only when external light L1 that can affect the lighting environment enters the target space 4 including the specific position P1 based on the above illuminance. Note that whether the control unit 11 refers to the illuminance acquired by the third acquisition unit 14 can be appropriately set by the user U1.

[0053] The first input reception unit 15 receives an input of a schedule by the user U1. In the schedule, for example, a lighting environment desired by the user U1 can be assigned to each target space 4 in units of time, day, week, or year. Also, in the schedule, for example, a random lighting environment can be assigned to each target space 4 in units of time, day, week, or year. For example, the user U1 can input a schedule using an information terminal.

[0054] When the first input reception unit 15 receives an input of a schedule, the control unit 11 controls the lighting environment of each of the plurality of target spaces 4 according to the schedule received by the first input reception unit 15. In this case, the control unit 11 also executes exclusion control. That is, the control unit 11 controls the target space 4 including the specific position P1 so that the illuminance of the first load 21 does not become a lighting environment with an illuminance lower than a predetermined illuminance, and executes control according to the schedule.

[0055] The second input receiving unit 16 receives a setting input of the lighting environment by the user U1. The setting input may include, for example, an input for setting the lighting environment desired by the user U1 for each target space 4, an input for setting a random lighting environment for each target space 4, and the like. For example, the user U1 can perform the setting input using an information terminal, a switch installed in the office 3, a dedicated controller, or the like.

[0056] When the second input receiving unit 16 receives a setting input, the control unit 11 controls the lighting environment of each of the plurality of target spaces 4 according to the setting input received by the second input receiving unit 16. In this case, the control unit 11 also executes exclusion control. That is, the control unit 11 controls the target space 4 including the specific position P1 so that the illuminance of the first load 21 does not become a lighting environment with an illuminance lower than a predetermined illuminance, and executes control according to the setting input.

[0057] The storage unit 17 is a storage device that stores information (such as a computer program) necessary for the control unit 11 to perform control. The storage unit 17 is realized by, for example, an HDD (Hard Disk Drive), but may also be realized by a semiconductor memory, and known electronic information storage means can be used without particular limitation. The storage unit 17 stores, for example, the area information acquired by the first acquisition unit 12, the weather information acquired by the second acquisition unit 13, or the illuminance acquired by the third acquisition unit 14. Further, the storage unit 17 stores the schedule received by the first input receiving unit 15, the setting input received by the second input receiving unit 16, and the like.

[0058] The control unit 11, the first acquisition unit 12, the second acquisition unit 13, the third acquisition unit 14, the first input receiving unit 15, the second input receiving unit 16, and the storage unit 17 may all be mounted on the same substrate or housed in the same housing. The substrate or the housing may be provided in furniture such as the ceiling, wall, floor, or desk of the office 3. In this case, it is preferable because the lighting control system 100 is miniaturized.

[0059] [Verification] Here, the inventors of the present application conducted the following first verification and second verification in order to verify the influence of the external light L1 on the lighting environment of the target space 4.

[0060] (First Verification) In the first verification, a plurality of (here, 29) subjects were gathered in the space to be verified (here, one room of an office), and each subject was made to perform a predetermined task (here, one-minute typing work on a personal computer) while changing the lighting conditions of the space to be verified. Then, for each subject, a questionnaire was conducted regarding the impression of the space to be verified for each lighting condition of the space to be verified.

[0061] A plurality of desks are installed in the space to be verified. And each subject performed typing work using a personal computer (here, a laptop-type personal computer) at one of the desks. Also, a plurality of base lights for uniformly illuminating the entire space to be verified are installed on the ceiling of the space to be verified. Further, a spotlight for locally illuminating the corresponding desk is installed on each desk.

[0062] As a premise, each base light and each spotlight were controlled so that the color temperature of the illumination light was 5000K and the illuminance of the space to be verified was 750 lx. Note that 750 lx is the recommended illuminance required for work such as creating general documents, as defined in the Lighting Standard General Rules (JIS Z 9110:2010). And the lighting conditions are three conditions: when the illuminance by each base light is 0 lx, 300 lx, and 750 lx.

[0063] In the questionnaire for each subject, answers were obtained regarding the impression of the space to be verified for each of the two items. Specifically, for each of the two items, it was obtained from each subject which of the seven-level evaluations of (a) very good, (b) fairly good, (c) slightly good, (d) neither, (e) slightly bad, (f) fairly bad, (g) very bad the impression of the space to be verified was.

[0064] Of the two items, the first item is whether the space to be verified tends to concentrate, and the second item is whether the space to be verified tends to give a sense of immersion. Both the first item and the second item are factors related to the degree of concentration when the user U1 works in the space to be verified.

[0065] Then, based on the results of the questionnaire for each subject, the inventor of the present application quantitatively evaluated the conditions of the space to be verified. Specifically, for each of the two items, the 7-point evaluation obtained from the questionnaire was treated as an equal-interval scale, and scalar values of "-3", "-2",..., "+3" were assigned to the evaluations of (g), (f),..., (a) respectively. Then, based on this scalar value, a score was obtained for each lighting condition of the space to be verified.

[0066] Figure 9 is a diagram showing the results of the first verification. In Figure 9, the vertical axis represents the score for the space to be verified, and the horizontal axis represents the lighting condition of the space to be verified, that is, the illuminance by each base light. The score is the sum of the scalar values of the first item and the second item. Therefore, the maximum value of the score is "+6", and the minimum value of the score is "-6". The larger the score, the more the subject has the impression that "it is easy to concentrate on the work" for the space to be verified, and the smaller the score, the more the subject has the impression that "it is difficult to concentrate on the work" for the space to be verified. Also, in Figure 9, when the scores of multiple subjects are the same, the score is represented by a dot. That is, the number of dots for each illuminance shown in Figure 9 is not the same as the number of subjects. Also, the curve shown in Figure 9 represents a function obtained by approximating the score with a quadratic polynomial.

[0067] According to this function, the score decreases as the illuminance by each base light increases. When calculating the illuminance by each base light when the score becomes 0 in this function, it was 520 lx. That is, when the illuminance of the base light (first load 21) exceeds 520 lx, the result is that the user U1 cannot concentrate on the work or cannot immerse in the work. From this, when the illuminance of the external light L1 incident on any target space 4 in the control target area A1 through the window 51 (partition member 5) exceeds 520 lx, in the target space 4, regardless of the illuminance of the first load 21 and the second load 22, the user U1 cannot concentrate on the work or cannot immerse in the work.

[0068] Therefore, the inventor of the present application has obtained the finding that for the target space 4 including the specific position P1 (that is, the target space 4 where the external light L1 can enter), it is preferable to execute exclusion control so as not to create an illumination environment in which the illuminance of the first load 21 is lower than 520 lx. In such a target space 4, even if the illumination environment is controlled so that the illuminance of the first load 21 is lower than 520 lx, it will become bright due to the influence of the external light L1, and it is difficult to expect the zoning effect that the user U1 can easily concentrate on the work.

[0069] (Second verification) In the second verification, we verified the predetermined distance D1 until the illuminance by the external light L1 incident from the window 51 (partition member 5) into the control target area A1 reached a predetermined illuminance (here, 520 lx). Fig. 10A is a diagram showing the dimensions and measurement positions of the window 51 in the second verification. Fig. 10B is a diagram showing the results of the second verification. As shown in Fig. 10A, let the width dimension of the window 51 be "b", the height dimension be "h", and the distance from the window 51 to the measurement position be "d". Fig. 10B shows the correlation between the width dimension, height dimension of the window 51, the distance from the window 51 to the measurement position, and the daylight factor. In Fig. 10B, the vertical axis represents the ratio "h / d" of the height dimension of the window 51 to the distance from the window 51 to the measurement position, and the horizontal axis represents the ratio "b / d" of the width dimension of the window 51 to the distance from the window 51 to the measurement position. Also, in Fig. 10B, the numbers attached to each curve represent the daylight factor. Note that the daylight factor is a parameter expressed as a percentage of the ratio of the illuminance at the measurement position to the total sky illuminance.

[0070] Here, the daylight factor decreases as it goes from the window 51 toward the inside of the control target area A1. And even if the width dimension of the window 51 is infinite ("b / d = ∞") (that is, even when taking in the external light L1 into the control target area A1 to the maximum extent from the window 51), when "h / d ≤ 0.8", the daylight factor becomes about 5.2% (= 25 (%) * 750 (lx) / 2500 (lx)) or less. That is, when "h / d ≤ 0.8", the illuminance at the measurement position becomes 520 lx or less. Conversely, when "h / d > 0.8", the illuminance at the measurement position exceeds 520 lx. Here, assuming that the general height dimension of the window 51 is 1.6 m (that is, "h = 1.6"), when the distance from the window 51 to the measurement position is 2.0 m or less (that is, "d = 2.0"), the illuminance at the measurement position exceeds 520 lx. From this, in the target space 4 including the specific position where the distance from the window 51 to the measurement position is 2.0 m or less, regardless of the illuminance of the first load 21 and the second load 22, the user U1 cannot concentrate on the work or be immersed in the work.

[0071] Therefore, the inventors of the present application have obtained the finding that it is preferable to subject to exclusion control the target space 4 including the specific position P1 located 2 m inside from the outer edge A11 of the control target area A1.

[0072] [Operation] Hereinafter, an example of the operation of the lighting control system 100 according to the embodiment will be described. FIG. 11 is a flowchart showing an operation example of the lighting control system 100 according to the embodiment. Hereinafter, the control unit 11 will be described as starting the control of the lighting load 2 of each target space 4 by receiving a control input. That is, the control unit 11 does not control the lighting load 2 of each target space 4 before receiving the control input. The control input corresponds to, for example, reaching the working time on an arbitrary day or an operation by the user to start the operation of the lighting control system 100.

[0073] In addition, hereinafter, for the sake of simplicity of explanation, it will be described that the second acquisition unit 13 and the third acquisition unit 14 do not acquire weather information and the illuminance of the control target area A1, respectively. Further, hereinafter, for the sake of simplicity of explanation, it will be described that the first input reception unit 15 and the second input reception unit 16 do not receive the input of the schedule and the input of the lighting environment setting, respectively.

[0074] First, the first acquisition unit 12 acquires area information (S1). Process S1 corresponds to acquisition step ST1 of the lighting control method. Here, although process S1 is executed before the control unit 11 receives a control input, it may also be executed after the control unit 11 receives a control input.

[0075] Until the control unit 11 receives a control input (S2: No), it does not execute anything in particular. On the other hand, when the control unit 11 receives a control input (S2: Yes), it starts controlling the lighting load 2 of each target space 4 according to the received control input (S3). At this time, the control unit 11 also executes the exclusion control by referring to the area information acquired by the first acquisition unit 12 (S4). Processes S3 and S4 correspond to the control step ST2 of the lighting control method. Note that processes S3 and S4 are not necessarily executed in this order, but are executed simultaneously. Hereinafter, the above series of processes S1 to S4 are repeated.

[0076] [Advantages] Hereinafter, the advantages of the lighting control system 100 according to the embodiment will be described. First, the focus point of the inventor of the present application will be described. In recent years, the work styles of users have been diversifying, and for example, ABW-type offices 3 and the like have emerged. As already described, "ABW" is a working style in which the user selects a place or desk to work according to the work content. Specifically, "ABW" is a working style aimed at improving the productivity or well-being of the user by preparing a plurality of spaces or environments suitable for them according to the activity content of the user, such as solo work in which a person works concentratedly alone or group work in which a plurality of people exchange ideas. Here, by appropriately controlling the lighting environment of each of the plurality of target spaces 4, it is possible to exert a zoning effect such as giving an effect of enhancing the concentration of the users staying in each target space 4.

[0077] Here, in the ABW-type office 3, a space design is made to improve the performance of the organization by preparing spaces suitable for the activity content of the users, and there are cases where the color or brightness of the lighting is changed from other spaces in the meaning assignment of the space.

[0078] However, if the color or brightness of the lighting is set in the same space for a long period of time, users may get bored with the space, resulting in a decrease in satisfaction with Office 3, or the users staying in the space may become fixed, and communication within the organization may become dull. As solutions to these two problems, even after the initial settings such as at the start of using Office 3, parameters such as the color or brightness of the lighting corresponding to the space are interchanged with the parameters in other spaces on a daily basis to change the parameters.

[0079] By the way, for example, in the target space 4 near the window 51 during the day, the illuminance of the target space 4 (especially the illuminance on the desk surface) can change significantly due to the external light L1 incident through the window 51. For example, when providing a lighting environment with a relatively high illuminance in the target space 4, even if the target space 4 is brightly illuminated by the external light L1, the influence of the external light L1 can be small. On the other hand, when providing a lighting environment with a relatively low illuminance in the target space 4 (for example, task - ambient lighting for improving the user's concentration), even if the illuminance of the first load 21 is lowered, since the target space 4 is brightly illuminated by the external light L1, there is a problem that the originally expected zoning effect cannot be exerted. Therefore, the inventor of the present application has studied a system in which the effect of the lighting environment provided for the target space 4 is less likely to be impaired by the external light L1.

[0080] In the lighting control system 100 according to the embodiment, for the target space 4 including the specific position P1 (that is, the target space 4 where the external light L1 can enter), the control unit 11 executes exclusion control so that the illuminance of the first load 21 having a diffused light distribution characteristic does not become lower than a predetermined illuminance (that is, an environment where the target space 4 becomes relatively dark). For this reason, in the lighting control system 100 according to the embodiment, for the target space 4 where the external light L1 can enter, since a lighting environment that is easily affected by the external light L1 is not provided, there is an advantage that the effect of the lighting environment provided for the target space 4 is less likely to be impaired by the external light L1.

[0081] (Modification example) Although the embodiments have been described above, the present invention is not limited to the above embodiments. Hereinafter, modifications of the embodiments will be listed. The modifications described below may be combined as appropriate.

[0082] In the embodiment, the lighting control system 100 includes the second acquisition unit 13, the third acquisition unit 14, the first input reception unit 15, and the second input reception unit 16, but is not limited thereto. For example, the lighting control system 100 does not necessarily include all of the second acquisition unit 13, the third acquisition unit 14, the first input reception unit 15, and the second input reception unit 16.

[0083] In the embodiment, the lighting control system 100 targets one office 3, but is not limited thereto. For example, the lighting control system 100 may target a plurality of offices 3 and control the lighting load 2 of each target space 4 for each office 3.

[0084] In the embodiment, the lighting load 2 is not included in the components of the lighting control system 100, but the lighting load 2 may be included in the components of the lighting control system 100.

[0085] Also, for example, in the above embodiment, the lighting control system 100 is realized by a plurality of devices, but may be realized as a single device. For example, the lighting control system 100 may be realized as a single device corresponding to a server device. When the lighting control system 100 is realized by a plurality of devices, the components included in the lighting control system 100 may be distributed among the plurality of devices in any manner. For example, the components included in the server device in the above embodiment may be included in an information terminal installed in a closed space. That is, the present invention may be realized by cloud computing or edge computing.

[0086] For example, the communication method between devices in the above embodiment is not particularly limited. Also, in the communication between devices, a relay device (not shown) may be interposed.

[0087] In addition, 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.

[0088] In addition, each component may be realized by hardware. For example, each component may be a circuit (or an integrated circuit). These circuits may form one circuit as a whole, or may be separate circuits respectively. Further, each of these circuits may be a general-purpose circuit or a dedicated circuit.

[0089] Furthermore, the general or specific aspects of the present invention may be realized by a system, an apparatus, a method, an integrated circuit, a computer program, or a recording medium such as a computer-readable CD-ROM. Further, it may be realized by an arbitrary combination of a system, an apparatus, a method, an integrated circuit, a computer program, and a recording medium.

[0090] For example, the present invention may be realized as a lighting control method executed by a computer such as the lighting control system 100, or may be realized as a program for causing a computer to execute such a lighting control method, or may be realized as a computer-readable non-transitory recording medium on which such a program is recorded. Further, such a program may be supplied to a storage medium via a wide area communication network including the Internet or the like.

[0091] In addition, forms obtained by applying various modifications that can be conceived by those skilled in the art to each embodiment, or forms realized by arbitrarily combining the components and functions in each embodiment without departing from the spirit of the present invention are also included in the present invention.

[0092] (Summary) As described above, the lighting control system 100 includes a control unit 11 and a first acquisition unit 12. The control unit 11 controls the lighting environment of each of the plurality of target spaces 4 by controlling the lighting loads 2 assigned to each of the plurality of target spaces 4 included in the control target area A1. The first acquisition unit 12 acquires area information regarding the control target area A1. The lighting load 2 includes a first load 21 having a diffused light distribution characteristic and a second load 22 having a condensing light distribution characteristic. The control unit 11 performs exclusion control to control, for the target space 4 including the specific position P1 inside the predetermined distance D1 from the outer edge A11 of the control target area A1 specified based on the area information acquired by the first acquisition unit 12 among the plurality of target spaces 4, so that the illuminance of the first load 21 does not become lower than a predetermined illuminance.

[0093] According to such a lighting control system 100, for the target space 4 where external light L1 can enter, since it does not provide a lighting environment that is easily affected by the external light L1, there is an advantage that the effect of the lighting environment provided for the target space 4 is less likely to be impaired by the external light L1.

[0094] Also, for example, in the lighting control system 100, the predetermined illuminance is 520 lx.

[0095] According to such a lighting control system 100, there is an advantage that a lighting environment in which the user U1 can easily concentrate on work is less likely to be impaired by the influence of the external light L1.

[0096] Also, for example, in the lighting control system 100, the predetermined distance D1 is 2 m.

[0097] According to such a lighting control system 100, there is an advantage that a lighting environment in which the user U1 can easily concentrate on work is less likely to be impaired by the influence of the external light L1.

[0098] Also, for example, in the lighting control system 100, the first load 21 is installed at regular intervals D11 in the control target area A1. The specific position P1 is a position inside by a fixed interval D11 from the first load 21 that is closest to the outer edge A11.

[0099] According to such a lighting control system 100, there is an advantage that the lighting environment in which the user U1 can easily concentrate on the work is less likely to be impaired by the influence of the external light L1.

[0100] Also, for example, in the lighting control system 100, the area information includes information on whether or not the partition member 5 that can take in the external light L1 into the control target area A1 is provided at the outer edge A11.

[0101] According to such a lighting control system 100, since only the target space 4 in the vicinity of the partition member 5 can be made the target of the exclusion control, compared with the case where all the target spaces 4 in the vicinity of the outer edge A11 of the control target area A1 are made the target of the exclusion control, there is an advantage that the degree of freedom in controlling the lighting environment of the target space 4 is likely to increase.

[0102] Also, for example, in the lighting control system 100, the first acquisition unit 12 acquires, as area information, input information for setting a predetermined distance D1 by the user U1.

[0103] According to such a lighting control system 100, there is an advantage that the predetermined distance D1 can be appropriately changed according to the request of the user U1.

[0104] Also, for example, in the lighting control system 100, the first acquisition unit 12 acquires, as area information, drawing information indicating the control target area A1.

[0105] According to such a lighting control system 100, there is an advantage that the outer edge A11 of the control target area A1 can be automatically specified based on the drawing information without the user U1 manually setting it.

[0106] Also, for example, the lighting control system 100 further includes a first input reception unit 15 that receives an input of a schedule by the user U1. The control unit 11 controls the lighting environment of each of the plurality of target spaces 4 according to the schedule received by the first input reception unit 15.

[0107] According to such a lighting control system 100, there is an advantage that a lighting environment according to the request of the user U1 can be provided for each target space 4.

[0108] Also, for example, the lighting control system 100 further includes a second input reception unit 16 that receives an input of setting the lighting environment by the user U1. The control unit 11 controls the lighting environment of each of the plurality of target spaces 4 according to the setting input received by the second input reception unit 16.

[0109] According to such a lighting control system 100, there is an advantage that a lighting environment according to the request of the user U1 can be provided for each target space 4.

[0110] Also, for example, in the lighting control system 100, the control unit 11 executes exclusion control at least during the day. According to such a lighting control system 100, since the exclusion control is executed during the day when the external light L1 easily enters the control target area A1, there is an advantage that the effect of the exclusion control can be easily obtained.

[0111] Also, for example, the lighting control system 100 further includes a second acquisition unit 13 that acquires weather information related to the weather. The control unit 11 executes exclusion control when the weather information acquired by the second acquisition unit 13 indicates clear weather.

[0112] According to such a lighting control system 100, since the exclusion control is executed on a sunny day when the external light L1 easily enters the control target area A1, there is an advantage that the effect of the exclusion control can be easily obtained.

[0113] Further, for example, the lighting control system 100 further includes a third acquisition unit 14 that acquires the illuminance of the target space 4 including the specific position P1. When the illuminance acquired by the third acquisition unit 14 exceeds a threshold value, the control unit 11 executes exclusion control.

[0114] According to such a lighting control system 100, when external light L1 actually enters the target space 4 including the specific position P1, exclusion control is executed, so there is an advantage that the effect of the exclusion control is easily obtained.

[0115] Further, for example, in the lighting control system 100, the control unit 11 also executes exclusion control for the target space 4 including a position within a predetermined distance D2 inside the outer edge A21 of the specific area A2 where the lighting load 2 is not installed in the control target area A1 among the plurality of target spaces 4.

[0116] According to such a lighting control system 100, for example, even when there is a specific area A2 where external light L1 enters the control target area A1 from an opening provided in the ceiling, the effect of the lighting environment provided in the target space 4 near the specific area A2 is not easily impaired by the external light L1, which is an advantage.

[0117] Further, for example, the lighting control method includes a control step ST2 and an acquisition step ST1. In the control step ST2, the lighting environment of each of the plurality of target spaces 4 is controlled by controlling the lighting load 2 assigned to each of the plurality of target spaces 4 included in the control target area A1. In the acquisition step ST1, area information regarding the control target area A1 is acquired. The lighting load 2 includes a first load 21 having a diffused light distribution characteristic and a second load 22 having a condensing light distribution characteristic. In the control step ST2, for the target space 4 including the specific position P1 within a predetermined distance D1 inside the outer edge A11 of the control target area A1 specified based on the area information acquired in the acquisition step ST1 among the plurality of target spaces 4, exclusion control is executed to control so that the illuminance of the first load 21 does not become a lighting environment with an illuminance lower than a predetermined illuminance.

[0118] According to such a lighting control method, for the target space 4 where external light L1 can enter, since it does not provide a lighting environment that is easily affected by the external light L1, there is an advantage that the effect of the lighting environment provided for the target space 4 is not easily impaired by the external light L1.

[0119] Also, for example, the program causes one or more processors to execute the above-described lighting control method.

[0120] According to such a program, for the target space 4 where external light L1 can enter, since it does not provide a lighting environment that is easily affected by the external light L1, there is an advantage that the effect of the lighting environment provided for the target space 4 is not easily impaired by the external light L1.

Explanation of Reference Numerals

[0121] 11 Control unit 12 First acquisition unit 13 Second acquisition unit 14 Third acquisition unit 15 First input reception unit 16 Second input reception unit 2 Lighting load 21 First load 22 Second load 4, 41 to 46 Target space 5 Partition member A1 Controlled area A2 Specific area A11, A21 Outer edge D1, D2 Predetermined distance D11 Constant interval L1 External light P1, P2 Specific position ST1 Acquisition step ST2 Control step U1 User

Claims

1. A control unit that controls the lighting environment of each of the plurality of target spaces by controlling the dimming of lighting loads assigned to each of the plurality of target spaces included in a control target area; A first acquisition unit that acquires area information regarding the control target area, and includes: The lighting load has a first load having a diffused light distribution characteristic and a second load having a condensing light distribution characteristic, Among the plurality of target spaces, for a target space where external light can enter, including a specific position within a predetermined distance inside from the outer edge of the control target area specified based on the area information acquired by the first acquisition unit, the control unit executes exclusion control to control so that the illumination level of the first load does not result in an illumination environment lower than a predetermined illumination level. The area information is information indicating a position that can specify the outer edge in the control target area. Lighting control system.

2. The predetermined illumination level is 520 lx. The lighting control system according to claim 1.

3. The predetermined distance is 2 m. The lighting control system according to claim 1 or 2.

4. The first load is installed at regular intervals in the control target area. The specific position is a position inside by the regular interval from the first load closest to the outer edge. The lighting control system according to any one of claims 1 to 3.

5. A control unit that controls the lighting environment of each of the plurality of target spaces by controlling the dimming of lighting loads assigned to each of the plurality of target spaces included in a control target area; A first acquisition unit that acquires area information regarding the control target area, and includes: The lighting load has a first load having a diffused light distribution characteristic and a second load having a condensing light distribution characteristic, Among the plurality of target spaces, for a target space where external light can enter, including a specific position within a predetermined distance inside from the outer edge of the control target area specified based on the area information acquired by the first acquisition unit, the control unit executes exclusion control to control so that the illumination level of the first load does not result in an illumination environment lower than a predetermined illumination level. The area information includes information on whether a partition member capable of taking in external light into the control target area is provided at the outer edge. Lighting control system.

6. A control unit that controls the lighting environment of each of the plurality of target spaces by controlling the dimming of lighting loads assigned to each of the plurality of target spaces included in the control target area; A first acquisition unit that acquires area information regarding the control target area, and The lighting load has a first load having a diffused light distribution characteristic and a second load having a condensing light distribution characteristic, and The control unit, among the plurality of target spaces, for a target space where external light can enter, including a specific position within a predetermined distance from the outer edge of the control target area specified based on the area information acquired by the first acquisition unit, executes exclusion control to control so that the illumination environment does not become an illumination environment in which the illuminance of the first load is lower than a predetermined illuminance, The first acquisition unit acquires, as the area information, input information for setting the predetermined distance by a user, A lighting control system.

7. The first acquisition unit acquires, as the area information, drawing information indicating the control target area, The control unit specifies the target space based on the drawing information acquired by the first acquisition unit among the plurality of target spaces, The lighting control system according to any one of claims 1 to 6.

8. Further comprising a first input reception unit that receives an input of a schedule by a user, The control unit controls the lighting environment of each of the plurality of target spaces according to the schedule received by the first input reception unit, The lighting control system according to any one of claims 1 to 7.

9. Further comprising a second input reception unit that receives an input for setting a lighting environment by a user, The control unit controls the lighting environment of each of the plurality of target spaces according to the setting input received by the second input reception unit, The lighting control system according to any one of claims 1 to 8.

10. The control unit executes the exclusion control at least during the day, The lighting control system according to any one of claims 1 to 9.

11. Further comprising a second acquisition unit that acquires weather information regarding the weather, The control unit executes the exclusion control when the weather information acquired by the second acquisition unit indicates clear weather, The lighting control system according to any one of claims 1 to 10.

12. Further comprising a third acquisition unit that acquires the illuminance of the target space including the specific position, When the illuminance acquired by the third acquisition unit exceeds a threshold value, the control unit executes the exclusion control. The lighting control system according to any one of claims 1 to 11.

13. A control unit that controls the lighting environment of each of a plurality of target spaces included in a control target area by controlling the dimming of lighting loads assigned to each of the plurality of target spaces, A first acquisition unit that acquires area information regarding the control target area, The lighting load has a first load having a diffused light distribution characteristic and a second load having a condensed light distribution characteristic, Among the plurality of target spaces, the control unit executes an exclusion control for controlling so that an illumination environment in which the illuminance of the first load is lower than a predetermined illuminance is not formed for a target space that includes a specific position within a predetermined distance from the outer edge of the control target area specified based on the area information acquired by the first acquisition unit and into which external light can enter. Among the plurality of target spaces, the control unit also executes the exclusion control for a target space that includes a position within a predetermined distance from the outer edge of a specific area where the lighting load is not installed in the control target area. Lighting control system.

14. A control step of controlling the lighting environment of each of a plurality of target spaces included in a control target area by controlling the dimming of lighting loads assigned to each of the plurality of target spaces, An acquisition step of acquiring area information regarding the control target area, The lighting load has a first load having a diffused light distribution characteristic and a second load having a condensed light distribution characteristic, In the control step, for a target space that includes a specific position within a predetermined distance from the outer edge of the control target area specified based on the area information acquired in the acquisition step and into which external light can enter among the plurality of target spaces, an exclusion control is executed to control so that an illumination environment in which the illuminance of the first load is lower than a predetermined illuminance is not formed. The area information is information indicating a position that can specify the outer edge in the control target area. Lighting control method.

15. Causing one or more processors to Execute the lighting control method according to claim 14, Program.

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