CONTROL SYSTEM, LIGHTING LOAD, DETERMINATION DEVICE, CONTROL METHOD, AND PROGRAM

Abstract

To irradiate an area where a person exists in a suitable irradiation state.SOLUTION: A control system 1 controls a plurality of illumination loads 3 for irradiating a space where a plurality of persons exists with light. The control system includes an acquisition part 631, a determination part 431, and an illumination control part 432. The acquisition part 631 acquires positional information indicating positions of the plurality of persons. The determination part 431 determines distribution of light with which an area where a first person is positioned, is irradiated, on the basis of first positional information and second positional information. The first positional information is positional information of the first person included in the plurality of persons. The second positional information is positional information of a second person included in the plurality of persons. The illumination control part 432 controls the plurality of illumination loads 3 so as to irradiate the area with light, with the light distribution determined by the determination part 431.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure generally relates to a control system, a lighting load, a determination device, a control method, and a program, and more particularly, the present disclosure relates to a control system, a lighting load, a determination device, a control method, and a program related to control of a lighting load. [Background technology]

[0002] Patent Document 1 describes an environmental control system. The environmental control system described in Patent Document 1 includes a plurality of task lights, a plurality of base lights, and a control device. The control device of the environmental control system described in Patent Document 1 performs zoning control to adjust the brightness and color of the plurality of task lights and the plurality of base lights so as to create a concentrated work space control area where the illuminance of the task lights is greater than that of the base lights, and a non-concentrated work space control area where the illuminance of the task lights is less than that of the base lights. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-68666 Summary of the Invention [Problem to be solved by the invention]

[0004] In an environmental control system such as that disclosed in Patent Document 1, it is desirable to illuminate areas where people are present with an appropriate illumination state.

[0005] The present disclosure has been made in consideration of the above-mentioned reasons, and aims to provide a control system, lighting load, determination device, control method, and program capable of illuminating an area where people are present in an optimal illumination state. [Means for solving the problem]

[0006] A control system according to one aspect of the present disclosure is a system for controlling a plurality of lighting loads that irradiate a space in which a plurality of people are present. The control system includes an acquisition unit, a determination unit, and a lighting control unit. The acquisition unit acquires location information indicating the locations of the plurality of people. The determination unit determines the amount of light to be emitted to an area in which the first person is located based on first location information and second location information. Irradiation Pattern The first position information is the position information of the first person included in the plurality of people. The second position information is the position information of the second person included in the plurality of people. The lighting control unit determines the position information of the second person included in the plurality of people. Irradiation Pattern and controlling the plurality of lighting loads to illuminate the area. The determination unit determines the irradiation pattern from among a plurality of irradiation patterns including a first irradiation pattern, a second irradiation pattern, and a third irradiation pattern. The first irradiation pattern is an irradiation pattern of a first color temperature, a first dimming rate, and a first light distribution pattern. The second irradiation pattern is an irradiation pattern of a second color temperature, a second dimming rate, and a second light distribution pattern. The third irradiation pattern is an irradiation pattern of a third color temperature, a third dimming rate, and a first light distribution pattern. The second color temperature, the first color temperature, and the third color temperature have higher values ​​in this order. The third dimming rate, the first dimming rate, and the second dimming rate have higher values ​​in this order. The light distribution angle of the first light distribution pattern is larger than the light distribution angle of the second light distribution pattern. A control system according to an aspect of the present disclosure is a system for controlling a plurality of lighting loads that irradiate light into a space in which a plurality of people are present. The control system includes an acquisition unit, a determination unit, and a lighting control unit. The acquisition unit acquires location information indicating the locations of the plurality of people. The determination unit determines a light distribution of light to irradiate an area in which a first person is located, based on first location information and second location information. The first location information is the location information of the first person included in the plurality of people. The second location information is the location information of a second person included in the plurality of people. The lighting control unit controls the plurality of lighting loads so as to irradiate the area with the light distribution determined by the determination unit. The determination unit determines the light distribution of the light to irradiate the area, based on whether or not a distance between the first person and the second person derived from the first location information and the second location information is equal to or less than a threshold distance. The determination unit determines the light distribution of the light to irradiate the area, based on the number of the second people whose distance is equal to or less than the threshold distance. A control system according to an embodiment of the present disclosure is a system for controlling a plurality of lighting loads that irradiate light into a space where a plurality of people are present. The control system includes an acquisition unit, a determination unit, a lighting control unit, and an input unit. The acquisition unit acquires location information indicating the locations of the plurality of people. The determination unit determines a light distribution for irradiating an area where a first person is located based on first location information and second location information. The first location information is the location information of the first person included in the plurality of people. The second location information is the location information of a second person included in the plurality of people. The lighting control unit controls the plurality of lighting loads so as to irradiate the area with the light distribution determined by the determination unit. The input unit accepts a change operation of the environmental setting of the area including the light distribution, and stores history information of the change operation in a predetermined storage area. The lighting control unit has a function of controlling a device other than the plurality of lighting loads, and controls the other device in addition to controlling the plurality of lighting loads based on the decision of the determination unit. When the second person is not present in the area, the determination unit determines an environmental setting including the light distribution of the light that illuminates the area based on the history information of the change operation corresponding to the first person.

[0007] A lighting load according to one embodiment of the present disclosure is a lighting load used as one of the plurality of lighting loads controlled by the control system. The control system further includes a plurality of beacon terminals. The plurality of beacon terminals are capable of transmitting a beacon signal. Each of the plurality of beacon terminals is capable of transmitting the beacon signal to a mobile terminal. The mobile terminal is carried by each of the plurality of people and generates the location information based on the beacon signal. The acquisition unit acquires the location information from the mobile terminal. The lighting load has a function as one of the plurality of beacon terminals.

[0008] A determination device according to an embodiment of the present disclosure is a device related to control of a plurality of lighting loads. The plurality of lighting loads irradiate light into a space in which a plurality of people are present. The determination device includes an acquisition unit and a determination unit. The acquisition unit acquires location information indicating locations of the plurality of people. The determination unit determines a control unit for determining ... Irradiation Pattern The first location information is location information of the first person included in the plurality of people. The second location information is location information of the second person included in the plurality of people. The determination unit determines the irradiation pattern from among a plurality of irradiation patterns including a first irradiation pattern, a second irradiation pattern, and a third irradiation pattern. The first irradiation pattern is an irradiation pattern of a first color temperature, a first dimming rate, and a first light distribution pattern. The second irradiation pattern is an irradiation pattern of a second color temperature, a second dimming rate, and a second light distribution pattern. The third irradiation pattern is an irradiation pattern of a third color temperature, a third dimming rate, and a first light distribution pattern. The second color temperature, the first color temperature, and the third color temperature have higher values ​​in this order. The third dimming rate, the first dimming rate, and the second dimming rate have higher values ​​in this order. The light distribution angle of the first light distribution pattern is larger than the light distribution angle of the second light distribution pattern. A determination device according to an aspect of the present disclosure is a device related to control of a plurality of lighting loads. The plurality of lighting loads irradiate light into a space in which a plurality of people are present. The determination device includes an acquisition unit and a determination unit. The acquisition unit acquires position information indicating positions of the plurality of people. The determination unit determines a light distribution of light to irradiate an area in which a first person is located, based on first position information and second position information. The first position information is position information of the first person included in the plurality of people. The second position information is position information of a second person included in the plurality of people. The determination unit determines the light distribution of the light to irradiate the area, based on whether or not a distance between the first person and the second person derived from the first position information and the second position information is equal to or less than a threshold distance. The determination unit determines the light distribution of the light to irradiate the area, based on the number of the second people whose distance is equal to or less than the threshold distance.

[0009] A control method according to one aspect of the present disclosure is a method for controlling a plurality of lighting loads that irradiate light into a space where a plurality of people are present. The control method includes an acquisition step, a determination step, and a lighting control step. In the acquisition step, location information indicating the locations of the plurality of people is acquired. In the determination step, a lighting load that irradiates an area where the first person is located is determined based on first location information and second location information. Irradiation Pattern The first position information is the position information of the first person included in the plurality of people. The second position information is the position information of the second person included in the plurality of people. In the lighting control step, Irradiation Pattern and controlling the plurality of lighting loads to illuminate the area. In the determination step, the irradiation pattern is determined from among a plurality of irradiation patterns including a first irradiation pattern, a second irradiation pattern, and a third irradiation pattern. The first irradiation pattern is an irradiation pattern of a first color temperature, a first dimming rate, and a first light distribution pattern. The second irradiation pattern is an irradiation pattern of a second color temperature, a second dimming rate, and a second light distribution pattern. The third irradiation pattern is an irradiation pattern of a third color temperature, a third dimming rate, and a first light distribution pattern. The second color temperature, the first color temperature, and the third color temperature have higher values ​​in this order. The third dimming rate, the first dimming rate, and the second dimming rate have higher values ​​in this order. The light distribution angle of the first light distribution pattern is larger than the light distribution angle of the second light distribution pattern. A control method according to one aspect of the present disclosure is a method for controlling a plurality of lighting loads that irradiate light into a space in which a plurality of people are present. The control method includes an acquisition step, a determination step, and a lighting control step. In the acquisition step, position information indicating the positions of the plurality of people is acquired. In the determination step, a light distribution of light to irradiate an area in which a first person is located is determined based on first position information and second position information. The first position information is the position information of the first person included in the plurality of people. The second position information is the position information of the second person included in the plurality of people. In the lighting control step, the plurality of lighting loads are controlled so as to irradiate the area with the light distribution determined in the determination step. In the determination step, the light distribution of the light to irradiate the area is determined based on whether or not a distance between the first person and the second person derived from the first position information and the second position information is equal to or less than a threshold distance. In the determination step, the light distribution of the light to irradiate the area is determined based on the number of the second people whose distance is equal to or less than the threshold distance. A control method according to an aspect of the present disclosure is a method for controlling a plurality of lighting loads that irradiate light into a space in which a plurality of people are present. The control method includes an acquisition step, a determination step, a lighting control step, and an input step. In the acquisition step, position information indicating the positions of the plurality of people is acquired. In the determination step, a light distribution for irradiating an area in which a first person is located is determined based on first position information and second position information. The first position information is the position information of the first person included in the plurality of people. The second position information is the position information of the second person included in the plurality of people. In the lighting control step, the plurality of lighting loads are controlled so as to irradiate the area with the light distribution determined in the determination step. In the input step, a change operation of the environmental setting of the area including the light distribution is accepted, and history information of the change operation is stored in a predetermined storage area. In the lighting control step, a device other than the plurality of lighting loads can be controlled, and the other device is controlled in addition to the control of the plurality of lighting loads based on the decision in the decision step. In the determination step, if the second person is not present in the area, an environmental setting including the light distribution of the light illuminating the area is determined based on the history information of the change operation corresponding to the first person.

[0010] A program according to one embodiment of the present disclosure is a program for causing one or more processors to execute the control method.

[0011] A program according to one aspect of the present disclosure is a program for causing one or more processors of a mobile terminal that receives a beacon signal from a control system to execute a receiving step, an estimating step, and a transmitting step. In the receiving step, the beacon signal is received from at least one of a plurality of beacon terminals. In the estimating step, the position of the mobile terminal is estimated based on the beacon signal received in the receiving step, and position information is generated. In the transmitting step, the position information generated in the estimating step is transmitted to the control system. Effect of the Invention

[0012] According to the control system, lighting load, determination device, control method, and program according to the above aspects of the present disclosure, an area where people are present can be illuminated in a suitable illumination state. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is a block diagram of a lighting control system according to the first embodiment. [Diagram 2] FIG. 2 is a schematic diagram showing an example of a space in which the above lighting control system is used. [Diagram 3] FIG. 3 is a sequence diagram showing the operation of the lighting control system. [Figure 4] FIG. 4 is a flowchart showing the operation of the location information server in the lighting control system. [Diagram 5] FIG. 5 is a flowchart showing the operation of the position information server in the lighting control system according to the second embodiment. [Figure 6] FIG. 6 is a block diagram of a lighting control system according to the third embodiment. [Figure 7] FIG. 7 is a block diagram of a lighting control system according to the fourth embodiment. [Figure 8] FIG. 8 is a block diagram of a lighting control system according to the fifth embodiment. [Figure 9] FIG. 9 is a block diagram of a lighting control system according to the sixth embodiment. [Figure 10] FIG. 10 is a flowchart showing the operation of the location information server in the lighting control system. [Figure 11] FIG. 11 is a block diagram of an environmental control system according to the seventh embodiment. [Figure 12] FIG. 12 is a block diagram of an environmental control system according to the eighth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Preferred embodiments of the present disclosure will be described in detail below with reference to the drawings. In the embodiments described below, elements common to each other are given the same reference numerals, and duplicated descriptions of the common elements will be omitted. The following embodiment is merely one of various embodiments of the present disclosure. Various modifications of the embodiment can be made depending on the design, etc., as long as the object of the present disclosure can be achieved.

[0015] (Embodiment 1) (1) Overview First, an overview of a lighting control system 1 according to a first embodiment will be described with reference to Figs. 1 and 2. The lighting control system 1 according to the first embodiment is installed in a facility having a space SP1 as shown in Fig. 2, for example. The "facility" in the present disclosure is, for example, an office building, a factory, a commercial complex, an art museum, a museum, an amusement facility, a theme park, an airport, a train station, a dome stadium, a hotel, a house, etc., and includes a site and a building built on the site. In addition, the "facility" may be, for example, a moving body such as a ship or a railroad car. In the present disclosure, a case will be illustrated in which the facility is an office building and the space SP1 is one room in a free address office such as an ABW (Activity based working) office where employees do not have fixed seats.

[0016] As shown in FIG. 2, the lighting control system 1 is a system that controls a plurality of lighting loads 3 that irradiate light L1 into a space SP1 in which a plurality of people H0 exist.

[0017] As shown in FIG. 1, a lighting control system 1 of the first embodiment includes a lighting system 2 and a positioning system 5.

[0018] The lighting system 2 includes a plurality of lighting loads 3 and a lighting controller 4. The plurality of lighting loads 3 irradiate light L1 into a space SP1. The lighting controller 4 controls the plurality of lighting loads 3. In the following description, when there is no need to distinguish between the plurality of lighting loads 3, each of the plurality of lighting loads 3 will be referred to as a "lighting load 3."

[0019] In the first embodiment, the positioning system 5 is a local positioning system (LPS). The positioning system 5 is a system that estimates the position of a person H0 carrying a portable terminal 8 based on communication information between a plurality of beacon terminals 7 and a portable terminal 8 carried by each of the plurality of people H0. In the present disclosure, "portable" may include carrying the portable terminal 8 in a bag or pocket, or carrying the portable terminal 8 by hanging it on a strap, or holding the portable terminal 8 in a hand. In addition, "portable" may include placing the portable terminal 8 on a desk 91 (see FIG. 2) when the person H0 is sitting on a seat 92 (see FIG. 2), placing the portable terminal 8 in a bag placed on the floor or desk 91, etc.

[0020] The positioning system 5 includes a location information server 6 and a plurality of beacon terminals 7. In the following description, when the plurality of beacon terminals 7 are not distinguished from one another, each of the plurality of beacon terminals 7 is referred to as a "beacon terminal 7."

[0021] The location information server 6 of the first embodiment includes an acquisition unit 631 and a behavior estimation unit 632. The acquisition unit 631 acquires location information indicating the locations of the multiple people H0. The "location information" in the present disclosure is information for identifying the location of each of the multiple people H0. The "location information" may include information for identifying the location of a mobile terminal 8 carried by each of the multiple people H0. The behavior estimation unit 632 estimates the behavior of the first person based on the first location information, which is the location information of the first person included in the multiple people H0, and the second location information, which is the location information of the second person included in the multiple people H0. The "first person" in the present disclosure means the person H0 whose behavior is estimated by the behavior estimation unit 632. In addition, the "second person" means the person H0 excluding the first person from the multiple people H0 in the space SP1. When there are three or more people in the space SP1, the second person is multiple. The position information server 6 of the first embodiment transmits the estimation result, obtained by the behavior estimation unit 632 estimating the behavior of the first person, to the lighting controller 4 of the lighting system 2.

[0022] The lighting controller 4 of the first embodiment has a determination unit 431 and a lighting control unit 432.

[0023] The determination unit 431 determines the light distribution of light L1 to irradiate the area A0 where the first person is located, based on the estimation result received from the position information server 6. In other words, the determination unit 431 determines the light distribution of light L1 to irradiate the area A0 where the first person is located, based on first position information that is position information of the first person included in the multiple people H0, and second position information that is position information of the second person included in the multiple people H0.

[0024] As shown in Fig. 2, a plurality of areas A0 exist in the space SP1. An area A0 may be set for each desk 91 or seat 92, or for each set of a plurality of desks 91 or seats 92. In the first embodiment, an area A0 is set for each set of four seats 92 (two desks 91). The plurality of areas A0 may be connected to each other, or may be separated from each other. Furthermore, each of the plurality of areas A0 may have an overlapping portion with the other areas A0.

[0025] In the present disclosure, "light distribution" refers to the luminous intensity distribution of the light source unit 31 in the space SP1, that is, the spatial distribution of the light L1 emitted from the light source unit 31. In the present disclosure, "determining the light distribution" may include determining one light distribution pattern from among a plurality of preset light distribution patterns. The "light distribution pattern" may include a pattern of a light distribution angle and a pattern of illumination in a plurality of directions (for example, a direction from the lighting load 3 toward the ceiling C1 and a direction from the lighting load 3 toward the floor of the space SP1). For example, the wider the light distribution angle, the wider the irradiation range of the light L1 in the area A0.

[0026] In addition, the determination unit 431 of the first embodiment not only determines the light distribution, but also determines the dimming and color adjustment of the light L1 irradiating the area A0. In other words, the determination unit 431 of the first embodiment determines the irradiation state including at least the light distribution. "Dimming" in the present disclosure may include continuous dimming and step dimming. "Dimming" may include adjusting the dimming level (dimming rate) of the light L1 within a preset range (for example, a range from 0% to 100%, a range from 5% to 100%). "Color adjustment" may include adjusting the color adjustment level (color temperature) of the light L1. "Irradiation state" may include the light distribution (light distribution pattern), dimming (dimming rate), and color adjustment (color temperature) of the light L1. The determination unit 431 of the first embodiment determines one irradiation pattern from among a plurality of irradiation patterns in which light distribution (light distribution pattern), dimming (dimming rate), and color adjustment (color temperature) are preset, based on the estimation result received from the location information server 6.

[0027] The lighting control unit 432 controls the multiple lighting loads 3 so as to illuminate the area A0 with the light distribution determined by the determination unit 431. More specifically, the lighting control unit 432 controls the multiple lighting loads 3 so as to illuminate the area A0 with the illumination state (light distribution, dimming, and color adjustment) determined by the determination unit 431.

[0028] According to the lighting control system 1 of the first embodiment, the area A0 where the first person is located can be illuminated with light distribution according to the first position information and the second position information. More specifically, according to the lighting control system 1 of the first embodiment, the light distribution (illumination state) according to the behavior of the first person can be determined, so that the area (A0) where the first person is present can be illuminated with suitable light distribution. Furthermore, according to the lighting control system 1 of the first embodiment, the person H0 does not need to switch the light distribution, so the convenience of the person H0 who uses the space SP1 is improved.

[0029] (2)Details Next, details of the lighting control system 1 and the mobile terminal 8 according to the first embodiment will be described with reference to FIGS.

[0030] (2.1) Lighting control system As described above, the lighting control system 1 is a system that controls a plurality of lighting loads 3 that irradiate light L1 into a space SP1 in which a plurality of people H0 exist as shown in Fig. 2, based on position information of the plurality of people H0. As shown in Fig. 1, the lighting control system 1 of the first embodiment includes a lighting system 2 and a positioning system 5.

[0031] (2.2) Lighting System The lighting system 2 is a system that controls a plurality of lighting loads 3 that irradiate light L1 into a space SP1 in which a plurality of people H0 exist. The lighting system 2 includes the plurality of lighting loads 3 and a lighting controller 4.

[0032] (2.3) Lighting load As shown in Fig. 2, the lighting loads 3 irradiate light L1 to a space SP1 in which a plurality of people H0 exist. The lighting loads 3 are installed on a ceiling C1 or the like above a plurality of desks 91 and a plurality of seats 92 installed in the space SP1. Each of the lighting loads 3 in the first embodiment is installed above a corresponding seat 92. In the example of Fig. 2, 16 lighting loads 3 in one-to-one correspondence with the 16 seats 92 are installed on the ceiling C1. The arrangement of the lighting loads 3 is not limited to the arrangement in one-to-one correspondence with the plurality of seats 92, and may be another arrangement.

[0033] As shown in Fig. 2, one or more of the multiple lighting loads 3 in the first embodiment are specific lighting loads capable of switching the light distribution of the light L1 they irradiate. In the first embodiment, a case in which all of the multiple lighting loads 3 are specific lighting loads is illustrated. Because the lighting loads 3 are specific lighting loads, it is possible to reduce the number of lighting loads compared to a system in which light distribution is switched by switching on / off multiple lighting loads that have different light distributions and cannot switch light distributions. In other words, because the lighting loads 3 are specific lighting loads, it is possible to reduce the cost of the lighting system 2.

[0034] As shown in FIG. 1, the lighting load 3 (specific lighting load) includes a light source unit 31, a light distribution switching unit 32, a communication unit 33, a storage unit , and a control unit .

[0035] The lighting load 3 includes, for example, a microcomputer having a processor and a memory. The processor executes an appropriate program, causing the computer system to function as the control unit 35. In other words, the control unit 35 is realized by a computer system having a processor and a memory. The program may be pre-recorded in the memory, or may be provided via a telecommunication line such as the Internet, or recorded on a non-transitory recording medium such as a memory card.

[0036] The light source unit 31 includes, for example, a plurality of solid-state light-emitting elements. The light source unit 31 includes, for example, a plurality of LEDs (Light Emitting Diodes) as the plurality of solid-state light-emitting elements. Note that the light source unit 31 is not limited to a configuration having LEDs as the solid-state light-emitting elements. The light source unit 31 may include other solid-state light-emitting elements, such as organic electroluminescence (OEL) elements or semiconductor laser diodes (LD: Laser Diodes). The number of solid-state light-emitting elements is not limited to a plurality, and may be one.

[0037] The light distribution switching unit 32 is configured to be able to switch the light distribution (light distribution pattern) of the light L1 irradiated from the light source unit 31. The light distribution switching unit 32 of the first embodiment switches the light distribution between diffused light and concentrated light under the control of the control unit 35. "Diffused light" and "concentrated light" are light distribution patterns included in a plurality of light distribution patterns. The light L1 with a light distribution angle θ1 shown in FIG. 2 is an example of concentrated light, and the light L1 with a light distribution angle θ2 is an example of diffused light. As shown in FIG. 2, the light distribution angle θ1 of the diffused light is smaller than the light distribution angle θ2 of the concentrated light.

[0038] 1 includes a communication interface configured to be capable of communicating with the lighting controller 4. Note that, in this disclosure, "capable of communication" means that information can be exchanged directly or indirectly via a network or a repeater by an appropriate communication method such as wired communication or wireless communication.

[0039] The storage unit 34 is a semiconductor memory such as a Read Only Memory (ROM), a Random Access Memory (RAM), or an Electrically Erasable Programmable Read Only Memory (EEPROM). Note that the storage unit 34 is not limited to a semiconductor memory, and may be a hard disk drive or the like.

[0040] The storage unit 34 stores, for example, information on the illumination state (illumination pattern) and identification information of the lighting load 3.

[0041] The information of the irradiation pattern in the first embodiment is information in which an irradiation pattern number (irradiation pattern name), a light distribution pattern, a color temperature, and a dimming rate are associated with each other. For example, the first irradiation pattern is an irradiation pattern that irradiates light with a color temperature of 5000K, a dimming rate of 75%, and a light distribution pattern of diffuse light. The first irradiation pattern is, for example, a default irradiation pattern. The second irradiation pattern is an irradiation pattern that irradiates light L1 with a color temperature of 6500K, a dimming rate of 50%, and a light distribution pattern of concentrated light. The second irradiation pattern is, for example, an irradiation pattern suitable for a person H0 who wants to concentrate on work, etc. The third irradiation pattern is an irradiation pattern that irradiates light L1 with a color temperature of 3000K, a dimming rate of 100%, and a light distribution pattern of diffuse light. The third irradiation pattern is, for example, an irradiation pattern suitable for a person H0 who has a conversation, a meeting, etc.

[0042] The identification information of the lighting load 3 is information for identifying each of the multiple lighting loads 3. The identification information of the lighting load 3 is information including, for example, a Media Access Control (MAC) address, an Internet Protocol (IP) address, or a product number.

[0043] The control unit 35 controls the light source unit 31 based on a control signal received from the illumination controller 4. Specifically, the control unit 35 in the first embodiment performs dimming control, color adjustment control, and light distribution switching control according to an illumination pattern instructed by the control signal.

[0044] (2.4) Lighting Controller The lighting controller 4 is a controller that controls a plurality of lighting loads 3. As shown in FIG.

[0045] The lighting controller 4 includes, for example, a microcomputer having a processor and a memory. The processor executes an appropriate program, causing the computer system to function as the control unit 43. In other words, the control unit 43 is realized by a computer system having a processor and a memory. The program may be pre-recorded in the memory, or may be provided via a telecommunication line such as the Internet, or recorded on a non-transitory recording medium such as a memory card.

[0046] The communication unit 41 includes a communication interface configured to be able to communicate with the plurality of lighting loads 3, and a communication interface configured to be able to communicate with the position information server 6 of the positioning system 5.

[0047] The storage unit 42 is a semiconductor memory such as a ROM, a RAM, or an EEPROM. Note that the storage unit 42 is not limited to a semiconductor memory, and may be a hard disk drive or the like.

[0048] The storage unit 42 stores, for example, correspondence information in which a plurality of irradiation states (irradiation patterns) and a plurality of behavior modes are associated one-to-one. Each of the plurality of behavior modes is a behavior mode of the first person estimated by the behavior estimation unit 632 of the position information server 6. The plurality of behavior modes in the first embodiment include a first mode, a second mode, and a third mode. The second mode is a behavior mode in which the first person is estimated to be working alone (performing solo work) at the seat 92. The third mode is a behavior mode in which the first person is estimated to be having a conversation or a meeting with a second person. The first mode is a behavior mode other than the second mode and the third mode, for example, a default behavior mode.

[0049] In the correspondence information of the first embodiment, the first mode is associated with the first irradiation pattern. In addition, in the correspondence information, the second mode is associated with the second irradiation pattern. In addition, in the correspondence information, the third mode is associated with the third irradiation pattern.

[0050] Moreover, the storage unit 42 of the first embodiment further stores history information of the irradiation state (irradiation pattern). The history information of the irradiation pattern is history information of the irradiation pattern determined by the determination unit 431 in the past.

[0051] As shown in FIG. 1, the control unit 43 includes a determination unit 431 and an illumination control unit 432.

[0052] The determination unit 431 determines the light distribution of the light L1 to be irradiated to the area A0 where the first person is located, based on the estimation result received from the location information server 6. The estimation result received from the location information server 6 includes information indicating any one of the behavior modes of the first mode, the second mode, and the third mode. When the estimation result includes information indicating the first mode, the determination unit 431 determines the irradiation pattern of the light L1 to be the first irradiation pattern using the correspondence information stored in the storage unit 42. When the estimation result includes information indicating the second mode, the determination unit 431 determines the irradiation pattern of the light L1 to be the second irradiation pattern using the correspondence information. When the estimation result includes information indicating the third mode, the determination unit 431 determines the irradiation pattern of the light L1 to be the third irradiation pattern using the correspondence information.

[0053] The estimation result of the first embodiment is a result of the behavior estimation unit 632 of the position information server 6 estimating the behavior mode of the first person based on the density of the plurality of people H0 in the area A0 derived from the first position information and the second position information. That is, the determination unit 431 of the first embodiment determines the light distribution (irradiation pattern) of the light L1 to be irradiated to the area A0 based on the density of the plurality of people H0 in the area A0 derived from the first position information and the second position information.

[0054] When the determination unit 431 determines the (illumination state) irradiation pattern of the light L1, it notifies the illumination control unit 432 of the determined irradiation pattern.

[0055] The lighting control unit 432 controls the multiple lighting loads 3 (specific lighting loads) so as to irradiate the area A0 with the irradiation pattern determined by the determination unit 431. In the irradiation pattern of the first embodiment, not only the light distribution pattern of the light L1 but also the dimming rate and color temperature are set. Therefore, the lighting control unit 432 of the first embodiment performs at least one of dimming control and color adjustment control of the light L1 irradiating the area A0 in addition to the light distribution control based on the determination of the determination unit 431. By performing at least one of dimming control and color adjustment control in addition to the light distribution control, the lighting control unit 432 can irradiate the light L1 more suitable for the first person's behavior mode compared to the case where only the light distribution pattern is controlled.

[0056] The lighting control unit 432 transmits a control signal to the lighting loads 3, thereby causing the lighting loads 3 to emit the light L1 of the irradiation pattern determined by the determination unit 431. More specifically, the lighting control unit 432 causes one or more lighting loads corresponding to the area A0 in which the first person is present to emit the light L1 of the irradiation pattern determined by the determination unit 431. In the present disclosure, the "one or more lighting loads corresponding to an area" may include a lighting load capable of irradiating one area A0. Note that the lighting loads 3 may correspond one-to-one to the multiple areas A0, one lighting load 3 may correspond to the multiple areas A0, or multiple lighting loads 3 may correspond to one area A0.

[0057] (2.5) Positioning System The positioning system 5 is a system that estimates the positions of a plurality of people H0 in a space SP1 in cooperation with a mobile terminal 8 carried by each of the plurality of people H0. The positioning system 5 of the first embodiment includes a plurality of beacon terminals 7 and a position information server 6.

[0058] (2.6) Beacon Terminal The multiple beacon terminals 7 are installed, for example, on the ceiling C1 of the space SP1 or on a desk 91 installed in the space SP1. The beacon terminals 7 are configured to be able to transmit beacon signals to a mobile terminal 8 carried by each of the multiple people H0 and generating position information based on the beacon signal. By using the mobile terminals 8 carried by each of the multiple people H0 as beacon receiving terminals, the positions of the multiple people H0 can be estimated without the multiple people H0 having to carry dedicated beacon receiving terminals or beacon transmitting terminals. The beacon terminals 7 have a control unit 71 and a communication unit 72.

[0059] The beacon terminal 7 includes, for example, a microcomputer having a processor and a memory. The processor executes an appropriate program, and the computer system functions as the control unit 71. In other words, the control unit 71 is realized by a computer system having a processor and a memory. The program may be pre-recorded in the memory, or may be provided via a telecommunication line such as the Internet, or recorded in a non-transitory recording medium such as a memory card.

[0060] The control unit 71 controls the communication unit 72 to transmit a beacon signal.

[0061] The communication unit 72 transmits a beacon signal in a predetermined communication method. The predetermined communication method is, for example, a BLE (Bluetooth (registered trademark) Low Energy) communication method. Note that the predetermined communication method is not limited to BLE, and may be a communication method such as WiFi (registered trademark). The communication unit 72 transmits a beacon signal at a predetermined time interval and with a predetermined transmission power based on the control by the control unit 71. The beacon signal includes unique information (identification information) unique to the beacon terminal 7.

[0062] (2.7) Location Information Server The location information server 6 of the first embodiment is a device that acquires location information from a mobile terminal 8 carried by each of a plurality of persons H0 and estimates the behavior of a first person based on the location information. That is, the location information server 6 functions as a behavior estimation device that estimates the behavior of the first person based on the location information. The location information server 6 has a communication unit 61, a storage unit 62, and a control unit 63.

[0063] The location information server 6 includes, for example, a microcomputer having a processor and a memory. The processor executes an appropriate program, causing the computer system to function as the control unit 63. In other words, the control unit 63 is realized by a computer system having a processor and a memory. The program may be pre-recorded in the memory, or may be provided via a telecommunication line such as the Internet, or recorded on a non-transitory recording medium such as a memory card.

[0064] The communication unit 61 includes a communication interface configured to be able to communicate with the mobile terminal 8, and a communication interface configured to be able to communicate with the lighting controller 4 of the lighting system 2. The communication unit 61 receives position information of the mobile terminal 8 from the mobile terminal 8 carried by each of the multiple people H0 present in the space SP1. The communication unit 61 also transmits an estimation result obtained by the behavior estimation unit 632 estimating the behavior of the first person to the lighting controller 4 of the lighting system 2.

[0065] The storage unit 62 is a semiconductor memory such as a ROM, a RAM, or an EEPROM. Note that the storage unit 62 is not limited to a semiconductor memory, and may be a hard disk drive or the like.

[0066] The storage unit 62 stores, for example, position information of a plurality of lighting loads 3 installed in the space SP1.

[0067] The control unit 63 includes an acquisition unit 631 and a behavior estimation unit 632 .

[0068] The acquisition unit 631 acquires position information indicating the positions of multiple people H0 present in the space SP1. More specifically, the acquisition unit 631 periodically acquires position information of the mobile terminal 8 from the mobile terminal 8 carried by each of the multiple people H0 present in the space SP1. The position information includes first position information and second position information. The first position information is position information indicating the position information of the first person, and the second position information is position information indicating the position information of the second person.

[0069] The behavior estimation unit 632 performs a behavior estimation process to estimate the behavior of the first person based on the first location information and the second location information acquired by the acquisition unit 631. The behavior estimation unit 632 of the first embodiment identifies an area A0 in which the first person exists based on the first location information, and then calculates the density of people H0 in the identified area A0 (unit space) based on the second location information. The behavior estimation unit 632 estimates the behavior of the first person according to the magnitude of the calculated density of people H0. Details of the behavior estimation process will be described in the section "(3) Operation".

[0070] (2.8) Mobile Devices The mobile terminal 8 in the first embodiment is a mobile terminal such as a smartphone, a tablet terminal, or a notebook type personal computer carried by each of the multiple persons H0. In the first embodiment, a case where the mobile terminal 8 is a smartphone is illustrated. The mobile terminal 8 has a communication unit 81, a storage unit 82, and a control unit 83.

[0071] The mobile terminal 8 includes, for example, a microcomputer having a processor and a memory. The processor executes an appropriate program, causing the computer system to function as the control unit 83. In other words, the control unit 83 is realized by a computer system having a processor and a memory. The program may be pre-recorded in the memory, or may be provided via a telecommunication line such as the Internet, or recorded on a non-transitory recording medium such as a memory card.

[0072] The communication unit 81 includes a communication interface configured to be able to communicate with a plurality of beacon terminals 7 and a communication interface configured to be able to communicate with the location information server 6. The communication unit 81 receives beacon signals transmitted from a plurality of beacon terminals 7 installed in the space SP1. The communication unit 81 also transmits the location information generated by the location estimation unit 831 to the location information server 6.

[0073] The storage unit 82 is a semiconductor memory such as a ROM, a RAM, or an EEPROM. Note that the storage unit 82 is not limited to a semiconductor memory, and may be a hard disk drive or the like.

[0074] The storage unit 82 stores, for example, position information of a plurality of beacon terminals 7 installed in the space SP1 and identification information of the mobile terminal 8. The identification information of the mobile terminal 8 is, for example, information including a MAC address, an IP address, or a product number.

[0075] The control unit 83 includes a position estimation unit 831 .

[0076] The position estimation unit 831 estimates the position of the mobile terminal 8 (itself) based on the beacon signals transmitted from the multiple beacon terminals 7. More specifically, the position estimation unit 831 of the first embodiment estimates the position of the mobile terminal 8 by, for example, performing three-point positioning based on the received signal strength (RSSI: Received Signal Strength Indication) of the beacon signal, the identification information of the beacon terminal 7 included in the beacon signal, and the position information of the beacon terminal 7. When the position estimation unit 831 estimates the position of the mobile terminal 8, it generates position information indicating the estimated position.

[0077] (3) Operation (3.1) Overall System Operation Next, an operation example of the lighting control system 1 according to the first embodiment will be described with reference to FIG.

[0078] The beacon terminal 7 periodically transmits a beacon signal (S1).

[0079] When the mobile terminal 8 receives the beacon signal, it estimates the position of the mobile terminal 8 based on the received signal strength of the beacon signal, etc. (S2). When the mobile terminal 8 estimates its own position, it transmits position information indicating the estimated position to the position information server 6 (S3).

[0080] When the location information server 6 receives the location information from the mobile terminal 8, it performs a behavior estimation process (S4). The behavior estimation process is a process for estimating the behavior (behavior mode) of the first person present in the space SP1. Details of the behavior estimation process will be explained in the section "(3.2) Behavior Estimation Process". The location information server 6 transmits the estimation result estimated in the behavior estimation process to the lighting control controller 4 (S5).

[0081] When the lighting controller 4 receives the estimation result from the position information server 6, it determines the irradiation state (irradiation pattern) of the light L1 to be irradiated to the area A0 where the first person is present (S6). The determination of the irradiation state includes at least the determination of the light distribution (light distribution pattern).

[0082] In the first embodiment, the area 0 is set for each of four seats 92 (see FIG. 2). That is, the lighting control unit 432 controls one or more lighting loads 3 corresponding to the area A0 where the first person is present so as to illuminate the area A0 where the first person is present with the illumination pattern determined by the determination unit 431. For example, the lighting control unit 432 controls four lighting loads 3 provided above the area A0 where the first person is present. Note that the lighting loads 3 controlled by the lighting control unit 432 are not limited to the lighting loads 3 provided above the area A0 where the first person is present. After determining the illumination pattern, the lighting controller 4 transmits a control signal to the four lighting loads 3 that illuminate the area A0 where the first person is present (S7).

[0083] Upon receiving the control signal from the lighting controller 4, the lighting load 3 performs lighting control, that is, dimming control, color adjustment control, and light distribution switching control, in accordance with the lighting pattern instructed by the control signal (S8).

[0084] It should be noted that the sequence diagram shown in FIG. 3 is merely an example, and the order of the processes may be changed as appropriate, and processes may be added or deleted as appropriate.

[0085] (3.2) Behavior estimation processing Next, an example of the operation of the location information server 6 according to the first embodiment will be described with reference to Fig. 4. Fig. 4 is a flowchart showing the operation of the location information server 6 according to the first embodiment, and corresponds to the process of step S4 in Fig. 3.

[0086] When starting the behavior estimation process, the position information server 6 first estimates that the behavior mode of the first person is the default behavior mode (S11). In the first embodiment, as described above, the default behavior mode is the first mode.

[0087] The location information server 6 acquires location information (S12). Specifically, the location information server 6 acquires first location information that is location information of a first person and second location information that is location information of a second person.

[0088] The location information server 6 calculates (calculates) the density of people in the area A0 where the first person is present based on the first location information and the second location information (S13). As shown in FIG. 2, a plurality of areas A0 (four in the example of FIG. 2) are set in advance in the space SP1 of the first embodiment. The area A0 of the first embodiment is set for every four seats 92. When the person H1 is the first person, the location information server 6 calculates the density of people in the area A1. Note that the "density of people" in the present disclosure may include the number of people per unit area (of the area A0), the ratio of people present in the area A0 to the maximum allowable number of people (the number of seats 92) in the area A0, and the number of people present in the area A0. In the first embodiment, a case is illustrated in which the "density of people" is the number of people present in the area A0 where the first person is present. In the example of FIG. 2, the number of people (density of people) in the area A1 where the person H1 is present is four.

[0089] The location information server 6 determines whether the calculated human density is equal to or less than the first threshold T1 (S14). If the calculated human density is equal to or less than the first threshold T1 (S14: Yes), the location information server 6 proceeds to step S16, and if the calculated human density is not equal to or less than the first threshold T1 (S14: No), the location information server 6 proceeds to step S15.

[0090] In the first embodiment, a case is illustrated in which the first threshold T1 is 1. That is, in the process of step S14, the location information server 6 in the first embodiment determines whether or not a second person is present in the area A0 in which the first person is present.

[0091] For example, if person H3 shown in Figure 2 is the first person, there is no second person (person H0 other than person H3) in area A4 where person H3 is present, so the location information server 6 determines that the calculated person density is less than or equal to the first threshold T1 (S14: Yes).

[0092] On the other hand, for example, if person H2 shown in Fig. 2 is the first person, a second person (person H0 other than person H2) exists in area A3 where person H2 exists, so the location information server 6 determines that the calculated person density is not equal to or less than the first threshold value T1 (S14: No). If person H1 shown in Fig. 2 is the first person, the location information server 6 makes a similar determination.

[0093] In the process of step S16, the location information server 6 estimates that the behavior mode of the first person is the second mode (S16), and proceeds to the process of step S12. The second mode is the behavior mode in which the location information server 6 has determined that the first person is performing solo work, and in the example of Fig. 2, the location information server 6 has determined that person H3 is performing solo work.

[0094] In the process of step S15, the location information server 6 determines whether the calculated human density is equal to or greater than the second threshold T2 (S15). If the calculated human density is equal to or greater than the second threshold T2 (S15: Yes), the location information server 6 proceeds to step S17, and if the calculated human density is not equal to or greater than the second threshold T2 (S15: No), the location information server 6 proceeds to step S11.

[0095] The second threshold T2 may be any number larger than the first threshold T1. In the first embodiment, the second threshold T2 is 3. That is, in the process of step S15, the location information server 6 in the first embodiment determines whether or not two or more second persons are present in the area A0 where the first person is present.

[0096] For example, if person H2 shown in Figure 2 is the first person, there is only one second person present in area A3, so the location information server 6 determines that the calculated person density is not greater than or equal to the second threshold T2 (S15: No).

[0097] On the other hand, for example, if person H1 shown in Figure 2 is the first person, there are two or more second people (people H0 other than person H1) in the area A1 where person H1 is present, so the location information server 6 determines that the calculated person density is greater than or equal to the second threshold T2 (S15: Yes).

[0098] In the process of step S17, the location information server 6 estimates that the behavior mode of the first person is the third mode (S17), and proceeds to the process of step S12. The third mode is a behavior mode in which the location information server 6 has determined that the first person is having a conversation, a meeting, or the like, and in the example of Fig. 2, the location information server 6 has determined that the person H1 is having a conversation, a meeting, or the like.

[0099] By having the location information server 6 estimate the behavior of the first person based on the density of people in the area A0 where the first person is present, it is possible to improve the accuracy of estimating the behavior of the first person compared to, for example, estimating the behavior of the first person by considering only the position of the first person. This makes it easier for the light distribution determined by the determination unit 431 to be a light distribution suitable for the area A0 where the first person is present.

[0100] The flowchart shown in FIG. 4 is merely an example, and the order of the processes may be changed as appropriate, and processes may be added or deleted as appropriate.

[0101] (4) Variations The first embodiment is merely one example of various embodiments of the present disclosure. The first embodiment can be modified in various ways depending on the design and the like as long as the object of the present disclosure can be achieved.

[0102] Furthermore, the same function as the lighting control system 1 according to the first embodiment may be embodied in a control method, a (computer) program, or a non-transitory recording medium having a program recorded thereon. The control method according to one aspect is a method for controlling a plurality of lighting loads 3 that irradiate light L1 to a space SP1 in which a plurality of people H0 exist. The control method includes an acquisition step, a determination step, and a lighting control step. In the acquisition step, position information indicating the positions of the plurality of people H0 is acquired. In the determination step, a light distribution of light L1 that irradiates an area A0 in which the first person is located is determined based on the first position information and the second position information. The first position information is position information of a first person included in the plurality of people H0. The second position information is position information of a second person included in the plurality of people H0. In the lighting control step, the plurality of lighting loads 3 are controlled so as to irradiate the area A0 with the light distribution determined in the determination step. The program according to one aspect is a program for causing one or more processors to execute the above control method.

[0103] Furthermore, the functions equivalent to those of the mobile terminal 8 according to the first embodiment may be embodied in a control method, a (computer) program, or a non-transitory recording medium having a program recorded thereon. The control method according to one embodiment is a method used in the mobile terminal 8 that receives a beacon signal from the lighting control system 1. The control method includes a receiving step, an estimating step, and a transmitting step. In the receiving step, a beacon signal is received from at least one of the multiple beacon terminals 7. In the estimating step, the position of the mobile terminal 8 is estimated based on the beacon signal received in the receiving step, and position information is generated. In the transmitting step, the position information generated in the estimating step is transmitted to the lighting control system 1 (position information server 6). The program according to one embodiment is a program for causing one or more processors to execute the above-mentioned control method.

[0104] The lighting control system 1 in the present disclosure includes, for example, a computer system. The computer system is mainly composed of a processor and a memory as hardware. The function of the lighting control system 1 in the present disclosure is realized by the processor executing a program recorded in the memory of the computer system. The program may be pre-recorded in the memory of the computer system, may be provided through an electric communication line, or may be provided by being recorded in a non-transitory recording medium such as a memory card, an optical disk, or a hard disk drive that can be read by the computer system. The processor of the computer system is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large-scale integrated circuit (LSI). The integrated circuits such as IC or LSI here are called by different names depending on the degree of integration, and include integrated circuits called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). Furthermore, a field-programmable gate array (FPGA) that is programmed after the manufacture of the LSI, or a logic device that can reconfigure the connection relationship inside the LSI or reconfigure the circuit partition inside the LSI, can also be adopted as a processor. The electronic circuits may be integrated in one chip or distributed among multiple chips. The chips may be integrated in one device or distributed among multiple devices. The computer system referred to here includes a microcontroller having one or more processors and one or more memories. Thus, the microcontroller is also composed of one or more electronic circuits including a semiconductor integrated circuit or a large-scale integrated circuit.

[0105] The lighting control system 1 may include at least an acquisition unit 631, a determination unit 431, and a lighting control unit 432.

[0106] The behavior estimation unit 632 may estimate the behavior (behavior mode) of the first person using a trained model generated by machine learning. The trained model is generated, for example, by supervised learning using a plurality of teacher data indicating the relationship between the first location information and the second location information and the behavior mode of the first person. The behavior estimation unit 632 can obtain the behavior mode of the first person as an output of the trained model by inputting the first location information and the second location information to the trained model.

[0107] The determination unit 431 may determine the irradiation state (irradiation pattern) of the light L1 irradiating the area A0 by using a trained model generated by machine learning. The trained model is generated by supervised learning using a plurality of teacher data indicating the relationship between the estimation result of the behavior mode of the first person and the irradiation pattern (light distribution) of the light L1 irradiating the area A0 where the first person is present, for example. The determination unit 431 can obtain the irradiation pattern of the light L1 irradiating the area A0 as the output of the trained model by using the estimation result of the behavior mode of the first person as the input of the trained model.

[0108] At least some of the functions in the lighting control system 1 may be realized by cloud (cloud computing) or the like.

[0109] It is not essential for the location information server 6 that at least a part of the functions of the location information server 6 is concentrated in one housing, and at least a part of the functions of the location information server 6 may be distributed across multiple housings. For example, the functions of the behavior estimation unit 632 and the like of the location information server 6 may be provided in the lighting control controller 4.

[0110] When the function of the behavior estimation unit 632 of the position information server 6 is provided in the lighting control controller 4, for example, the determination unit 431 also functions as the behavior estimation unit 632. That is, the determination unit 431 performs a behavior estimation process to estimate the behavior of the first person based on the first position information and the second position information, and determines an irradiation pattern of the light L1 to irradiate the area where the first person is located based on an estimation result of the behavior estimation process. Note that the determination unit 431 having the function of the behavior estimation unit 632 may be included in the position information server 6 instead of the lighting control controller 4.

[0111] Furthermore, the determination unit 431 having the function of the behavior estimation unit 632 may determine the irradiation state (irradiation pattern) of the light L1 irradiating the area A0 by using a trained model generated by machine learning. The trained model is generated by supervised learning using a plurality of teacher data indicating the relationship between the first position information and the second position information and the irradiation pattern (light distribution) of the light L1 irradiating the area A0 where the first person is present, for example. The determination unit 431 can obtain the irradiation pattern of the light L1 irradiating the area A0 as the output of the trained model by using the first position information and the second position information as input of the trained model.

[0112] An example of the machine learning algorithm is a neural network. However, the machine learning algorithm is not limited to a neural network, and may be, for example, an eXtreme Gradient Boosting (XGB) regression, a Random Forest, a decision tree, a Logistic Regression, a Support Vector Machine (SVM), a Naive Bayes classifier, or a k-nearest neighbors. Furthermore, the machine learning algorithm may be, for example, a Gaussian Mixture Model (GMM), or a k-means clustering.

[0113] Moreover, the learning method is supervised learning as an example in the embodiment 1. However, the learning method is not limited to supervised learning, and may be unsupervised learning or reinforcement learning.

[0114] In addition, the trained model may be updated by performing additional training.

[0115] It is not essential for the lighting controller 4 that at least some of the functions of the lighting controller 4 are concentrated in one housing, and at least some of the functions of the lighting controller 4 may be distributed across multiple housings. For example, the functions of the determination unit 431 of the lighting controller 4 may be provided in the location information server 6.

[0116] The mobile terminal 8 may detect the position of the mobile terminal 8 using a satellite positioning system such as a Global Positioning System (GPS).

[0117] The "second person" may be a person H0 that is a plurality of people H0 existing within a predetermined range centered on the first person, excluding the first person.

[0118] When the multiple persons H0 include a person H0 that is moving, the behavior estimation unit 632 may estimate the behavior of the first person without considering the position information of the moving person H0. The determination of whether the person H0 is moving is performed based on, for example, the position information of the mobile terminal 8 or the person H0. In addition, the mobile terminal 8 may be equipped with a sensor such as an acceleration sensor to determine whether the person H0 is moving.

[0119] The lighting control unit 432 may control the lighting loads 3 to illuminate the unmanned area A2 (see FIG. 2) where the plurality of people H0 are not present with an illumination pattern based on the history information of the illumination pattern stored in a predetermined storage area such as the storage unit 42. In other words, the lighting control unit 432 may control the lighting loads 3 to illuminate the unmanned area A2 where the plurality of people H0 are not present with a light distribution (light distribution pattern) based on the history information of the light distribution stored in a predetermined storage area such as the storage unit 42. By illuminating the unmanned area A2 with a light distribution pattern based on the history information, it is possible to reduce the frequency of changing the light distribution pattern (illumination pattern) after the person H0 arrives in the unmanned area A2. The predetermined storage area is not limited to the storage unit 42, and may be the storage unit 34 of the lighting load 3 or the storage unit 62 of the position information server 6. The predetermined storage area may be a storage area included in a system other than the lighting control system 1.

[0120] The position estimation unit 831 may estimate the position of the mobile terminal 8 using a positioning method that uses information such as the time of arrival (ToA) or the direction of arrival (AoA) instead of estimating the position of the mobile terminal 8 based on the received signal strength of the received beacon signal.

[0121] The control unit 63 of the location information server 6 may have a location estimation unit 831. When the location information server 6 has the location estimation unit 831, the mobile terminal 8 transmits information on the received signal strength of the beacon signals received from the multiple beacon terminals 7 and the identification information of the beacon terminals 7 included in the beacon signals to the location information server 6. When the location information server 6 has the location estimation unit 831, for example, the storage unit 62 stores the location information of the multiple lighting loads 3.

[0122] The lighting load 3 and the beacon terminal 7 may be integrated. When the lighting load 3 and the beacon terminal 7 are integrated, the communication unit 33 of the lighting load 3 and the communication unit 72 of the beacon terminal 7 may be a common communication unit.

[0123] The lighting controller 4 and the position information server 6 may be integrated together. When the lighting controller 4 and the position information server 6 are integrated together, the communication unit 41 of the lighting controller 4 and the communication unit 61 of the position information server 6 may be a common communication unit.

[0124] In the first embodiment, in a comparison of two values ​​such as measurement data, "less than" may be "less than." In other words, in a comparison of two values, whether or not the two values ​​are equal can be arbitrarily changed depending on the setting of the reference value, etc., so there is no technical difference between "less than" and "less than." Similarly, "more than" may be "exceeding."

[0125] (Embodiment 2) The lighting control system 1 according to the second embodiment differs from the lighting control system 1 according to the first embodiment in that the lighting control system 1 determines the light L1 to be irradiated to the area A0 where the first person is present, based on the distance between the first person and the second person derived from the first position information and the second position information. More specifically, the processing content of the behavior estimation processing (the processing of step S4 in FIG. 3) performed by the position information server 6 is different.

[0126] An example of the operation of the location information server 6 according to the second embodiment will be described with reference to FIG.

[0127] When starting the behavior estimation process, the position information server 6 first estimates that the behavior mode of the first person is the default behavior mode (S21). In the second embodiment, the default behavior mode is the first mode.

[0128] The location information server 6 acquires the location information (S22).

[0129] The location information server 6 calculates the distance between the first person and the second person based on the first location information and the second location information (S23). The location information server 6 of the second embodiment calculates the distance between the first person and all second people present in the space SP1.

[0130] The location information server 6 judges whether the number of second people whose calculated distance between the first person and the second person is equal to or less than the third threshold T3 is equal to or less than the fourth threshold T4 (S24). More specifically, the location information server 6 calculates the number of second people whose calculated distance between the first person and the second person is equal to or less than the third threshold T3. In the following description, the second person whose calculated distance between the first person and the second person is equal to or less than the third threshold T3 may be referred to as a "neighboring second person". After that, the location information server 6 judges whether the number of nearby second people is equal to or less than the fourth threshold T4.

[0131] Here, in the second embodiment, a case is illustrated in which the third threshold T3 is 1 m and the fourth threshold T4 is 0. In the example of FIG. 2, from the perspective of a first person sitting in a certain seat 92, the adjacent seat 92, the opposite seat 92, and the seat 92 diagonally opposite are included in a range of 1 m. For example, when a person H1 is the first person, a person H0 sitting in the seat 92 to the right of the person H1, a person H0 sitting in the seat 92 opposite the person H1, and a person H0 sitting in the seat 92 diagonally opposite the right of the person H1 are the second people in the vicinity. That is, when the person H1 is the first person, the location information server 6 determines that there are three second people in the vicinity.

[0132] If the number of nearby second people is less than or equal to the fourth threshold T4 (S24: Yes), the location information server 6 proceeds to step S26, and if the number of nearby second people is not less than or equal to the fourth threshold T4 (S24: No), the location information server 6 proceeds to step S25.

[0133] For example, when person H3 shown in FIG. 2 is the first person, the number of nearby second people is 0, so the location information server 6 determines that the number of nearby second people is equal to or less than the fourth threshold T4 (S24: Yes).

[0134] 2 is the first person, person H0 is sitting in seat 92 diagonally opposite to the left of person H2 and the number of nearby second people is 1, so the location information server 6 determines that the calculated person density is not equal to or less than the fourth threshold value T4 (S24: No). The location information server 6 makes a similar determination when person H1 shown in FIG. 2 is the first person.

[0135] In the process of step S26, the position information server 6 estimates that the behavior mode of the first person is the second mode (S26), and proceeds to the process of step S22.

[0136] In the process of step S25, the location information server 6 determines whether the number of nearby second people is equal to or greater than a fifth threshold T5 (S25). If the number of nearby second people is equal to or greater than the fifth threshold T5 (S25: Yes), the location information server 6 proceeds to the process of step S27, and if the number of nearby second people is not equal to or greater than the fifth threshold T5 (S25: No), the location information server 6 proceeds to the process of step S21.

[0137] The fifth threshold T5 may be any number greater than the fourth threshold T4. In the second embodiment, the fifth threshold T5 is set to 2. That is, the location information server 6 in the second embodiment determines whether the number of nearby second people is 2 or more in the process of step S25.

[0138] For example, when person H2 shown in FIG. 2 is the first person, there is only one nearby second person, so the location information server 6 determines that the number of nearby second people is not greater than or equal to the fifth threshold T5 (S25: No).

[0139] On the other hand, for example, when person H1 shown in FIG. 2 is the first person, there are two or more second people nearby, so the location information server 6 determines that the number of nearby second people is greater than or equal to the fifth threshold T5 (S25: Yes).

[0140] In the process of step S27, the position information server 6 estimates that the behavior mode of the first person is the third mode (S27), and advances the process to step S22.

[0141] As described above, the behavior estimation unit 632 of the position information server 6 according to the second embodiment estimates the behavior of the first person based on whether or not the distance between the first person and the second person derived from the first position information and the second position information is equal to or less than the threshold distance (equal to or greater than the threshold distance). That is, the determination unit 431 according to the second embodiment determines the irradiation pattern (light distribution) of the light L1 that irradiates the area A0 where the first person is present based on whether or not the distance between the first person and the second person derived from the first position information and the second position information is equal to or less than the threshold distance.

[0142] In the second embodiment, the area 0 where the first person is present is set for each seat 92. The lighting control unit 432 controls one or more lighting loads 3 corresponding to the seat 92 where the first person is sitting so as to illuminate the area A0 (seat 92) with the illumination pattern determined by the determination unit 431. For example, the lighting control unit 432 controls one lighting load 3 provided above the seat 92 where the first person is sitting. The lighting load 3 controlled by the lighting control unit 432 is not limited to one lighting load 3 provided above the seat 92 where the first person is sitting.

[0143] Moreover, the behavior estimation unit 632 of the position information server 6 according to the second embodiment estimates the behavior of the first person based on the number of second people (nearby second people) whose distance between the first person and the second person is equal to or less than (equal to) the threshold distance derived from the first position information and the second position information. That is, the determination unit 431 according to the second embodiment determines the irradiation pattern (light distribution) of the light L1 that irradiates the area A0 where the first person is present based on the number of second people whose distance between the first person and the second person is equal to or less than the threshold distance derived from the first position information and the second position information.

[0144] By the position information server 6 estimating the behavior of the first person based on whether the distance between the first person and the second person is equal to or less than the threshold distance, the estimation accuracy can be improved more than, for example, estimating the behavior of the first person by considering only the position of the first person. Furthermore, the position information server 6 of the second embodiment can improve the estimation accuracy by estimating the behavior of the first person based on the number of second people whose distance between the first person and the second person is equal to or less than the threshold distance. This makes it easier for the light distribution determined by the determination unit 431 to be a light distribution suitable for the seat 92 where the first person is present.

[0145] The flowchart shown in FIG. 5 is merely an example, and the order of the processes may be changed as appropriate, and processes may be added or deleted as appropriate.

[0146] The second embodiment is merely one example of various embodiments of the present disclosure. The second embodiment can be modified in various ways depending on the design and the like as long as the object of the present disclosure can be achieved.

[0147] The various configurations (including modified examples) described in the second embodiment can be adopted in appropriate combination with the various configurations (including modified examples) described in the first embodiment.

[0148] (Embodiment 3) The lighting control system 1 of embodiment 3 differs from the lighting control system 1 of embodiment 1 (see FIG. 1) in that one or more lighting loads 3a among the multiple lighting loads 3 have the function of one beacon terminal 7 among the multiple beacon terminals 7.

[0149] As shown in FIG. 6, the lighting control system 1 of the third embodiment includes a plurality of lighting loads 3a, a lighting controller 4, and a location information server 6.

[0150] The lighting load 3a is a lighting load used as one of the multiple lighting loads 3 controlled by the lighting control system 1. The lighting load 3a is a part of the lighting system 2 and a part of the positioning system 5. The lighting load 3a is a device in which the lighting load 3 (see FIG. 1) according to the first embodiment and the beacon terminal 7 (see FIG. 1) are integrally provided. The control unit 35 of the lighting load 3a has a beacon control unit 351.

[0151] The beacon control unit 351 controls the communication unit 33 to transmit a beacon signal.

[0152] The communication unit 33 of the third embodiment transmits a beacon signal in a predetermined communication method. The predetermined communication method is, for example, a BLE communication method. Note that the predetermined communication method is not limited to BLE, and may be a communication method such as WiFi (registered trademark). The communication unit 33 transmits a beacon signal at a predetermined time interval and with a predetermined transmission power based on the control of the beacon control unit 351. The beacon signal includes unique information (identification information) unique to the lighting load 3.

[0153] As described above, the lighting load 3a has a function of transmitting a beacon signal. That is, the lighting load 3a has a function as one of the beacon terminals 7 among the multiple beacon terminals 7.

[0154] By having the lighting loads 3a function as the beacon terminals 7, the number of the beacon terminals 7 included in the lighting control system 1 can be reduced.

[0155] The third embodiment is merely one example of various embodiments of the present disclosure. Various modifications of the third embodiment can be made depending on the design and the like as long as the object of the present disclosure can be achieved.

[0156] The various configurations (including modified examples) described in the third embodiment can be adopted in appropriate combination with the various configurations (including modified examples) described in the first and second embodiments.

[0157] (Embodiment 4) As shown in FIG. 7, the lighting control system 1 of embodiment 4 differs from the lighting control system 1 of embodiment 1 (see FIG. 1) in that the acquisition unit 631, the determination unit 431, and the lighting control unit 432 are provided in a single housing (control server 6a).

[0158] The lighting control system 1 according to the fourth embodiment includes a plurality of lighting loads 3, a control server 6a, and a plurality of beacon terminals .

[0159] The control server 6a is a part of the lighting system 2 and a part of the positioning system 5. The control server 6a is a device in which the lighting controller 4 (see FIG. 1) and the position information server 6 (see FIG. 1) according to the first embodiment are integrated. The control server 6a has the functions of the lighting controller 4 and the position information server 6 according to the first embodiment. In other words, the control server 6a functions as a decision device regarding the control of a plurality of lighting loads 3 that irradiate light L1 into a space SP1 in which a plurality of people H0 exist.

[0160] The control server 6a includes a communication unit 61, a storage unit 62, and a control unit 63.

[0161] The communication unit 61 according to the fourth embodiment has the functions of the communication unit 41 and the communication unit 61 according to the first embodiment.

[0162] The storage unit 62 according to the fourth embodiment has the functions of the storage unit 42 and the storage unit 62 according to the first embodiment.

[0163] The control unit 63 according to the fourth embodiment has the functions of the control unit 43 and the control unit 63 according to the first embodiment. The control unit 63 has an acquisition unit 631, a behavior estimation unit 632, a determination unit 431, and a lighting control unit 432.

[0164] Since the control server 6a is equipped with an acquisition unit 631, a determination unit 431, and a lighting control unit 432, it is possible to perform operations ranging from acquiring the position information of multiple people H0 to determining the irradiation pattern (light distribution) of light L1 to be irradiated onto the area A0, all with functions provided in a single housing.

[0165] The fourth embodiment is merely one example of various embodiments of the present disclosure. The fourth embodiment can be modified in various ways depending on the design and the like as long as the object of the present disclosure can be achieved.

[0166] The various configurations (including modified examples) described in the fourth embodiment can be adopted in appropriate combination with the various configurations (including modified examples) described in the first to third embodiments.

[0167] (Embodiment 5) As shown in FIG. 8, the lighting control system 1 of embodiment 5 differs from the lighting control system 1 of embodiment 1 (see FIG. 1) in that one or more lighting loads 3b among the multiple lighting loads 3 receive a beacon signal.

[0168] The lighting control system 1 according to the fifth embodiment includes one or more lighting loads 3b included in the plurality of lighting loads 3, a lighting controller 4, a location information server 6, and a plurality of beacon terminals .

[0169] The beacon terminal 7 according to the fifth embodiment is carried by each of a plurality of people H0 present in the space SP1.

[0170] The lighting load 3b is a part of the lighting system 2 and a part of the positioning system 5. The control unit 35 of the lighting load 3b has a reception control unit 352.

[0171] The reception control unit 352 receives a beacon signal by controlling the communication unit 33. In addition, the reception control unit 352 controls the communication unit 33 to transmit communication information including the identification information of the beacon terminal 7 included in the received beacon signal and information regarding the received signal strength of the beacon signal to the location information server 6.

[0172] The communication unit 33 according to the fifth embodiment receives a beacon signal transmitted from a beacon terminal 7 carried by each of the plurality of people H0. The communication unit 33 also transmits communication information to the location information server 6.

[0173] The communication unit 61 of the location information server 6 according to the fifth embodiment receives communication information transmitted from the lighting load 3b.

[0174] The control unit 63 of the position information server 6 according to the fifth embodiment has a position estimation unit 831 .

[0175] The position estimation unit 831 estimates the positions of the people H0 based on the communication information and the position information of the lighting load 3b. More specifically, the position estimation unit 831 of the fifth embodiment estimates the position of the beacon terminal 7, for example, by performing three-point positioning based on the received signal strength of the beacon signal, the identification information of the beacon terminal 7 included in the beacon signal, and the position information of the lighting load 3b. When the position estimation unit 831 estimates the position of the beacon terminal 7, it generates position information indicating the estimated position.

[0176] According to the lighting control system 1 of embodiment 5, by receiving beacon signals transmitted from beacon terminals 7 carried by multiple people H0 at the lighting load 3b, it is possible to obtain location information of multiple people H0 without using, for example, mobile terminals 8 carried by the multiple people H0.

[0177] The fifth embodiment is merely one example of various embodiments of the present disclosure. The fifth embodiment can be modified in various ways depending on the design and the like as long as the object of the present disclosure can be achieved.

[0178] The function of the beacon terminal 7 may be included in a mobile terminal 8 carried by each of the multiple people H0. In other words, the mobile terminal 8 carried by each of the multiple people H0 may periodically transmit a beacon signal including the identification information of the mobile terminal 8.

[0179] The various configurations (including modified examples) described in the fifth embodiment can be adopted in appropriate combination with the various configurations (including modified examples) described in the first to fourth embodiments.

[0180] (Embodiment 6) As shown in FIG. 9, the lighting control system 1 according to the sixth embodiment differs from the lighting control system 1 according to the first embodiment (see FIG. 1) in that a plurality of environmental sensors 11 are provided.

[0181] The lighting control system 1 according to the sixth embodiment includes a plurality of environmental sensors 11.

[0182] The multiple environmental sensors 11 are part of the positioning system 5. In the following description, when there is no need to distinguish between the multiple environmental sensors 11, each of the multiple environmental sensors 11 will be referred to as an "environmental sensor 11." The environmental sensors 11 are installed, for example, in each area A0 included in the space SP1.

[0183] The environmental sensor 11 acquires environmental information around the first person in the space SP1 (area A0). In the present disclosure, "environmental information" includes general information about the surroundings of the environmental sensor 11 measured by the environmental sensor 11, and is, for example, information about physical quantities such as temperature (room temperature), humidity, speed, acceleration, angular velocity, sound, and smell. Furthermore, the environmental information may include information such as the presence or absence of a person in the space surrounding the environmental sensor 11, the amount of ultraviolet rays, the amount of infrared rays, or the strength of received radio waves. In the sixth embodiment, a case where the environmental sensor 11 is a noise sensor is illustrated.

[0184] The environment sensor 11 includes a detection unit 111 , a communication unit 112 , and a control unit 113 .

[0185] The environmental sensor 11 includes, for example, a microcomputer having a processor and a memory. The processor executes an appropriate program, causing the computer system to function as the control unit 113. In other words, the control unit 113 is realized by a computer system having a processor and a memory. The program may be pre-recorded in the memory, or may be provided via a telecommunication line such as the Internet, or recorded on a non-transitory recording medium such as a memory card.

[0186] The communication unit 112 includes a communication interface configured to be able to communicate with the position information server 6. The communication unit 112 transmits the sound information generated by the control unit 113 to the position information server 6.

[0187] The detection unit 111 detects the volume of a sound. In other words, the detection unit 111 obtains the volume of a sound around the environment sensor 11 as environment information.

[0188] The control unit 113 generates sound information based on the volume of the sound detected by the detection unit 111. The sound information is information based on the environmental information.

[0189] The communication unit 61 of the position information server 6 according to the sixth embodiment receives sound information from the environment sensor 11.

[0190] The behavior estimation unit 632 of the position information server 6 according to the sixth embodiment estimates the behavior of the first person based on the first position information, the second position information, and the environmental information (sound information) acquired by the environmental sensor 11.

[0191] The determination unit 431 of the lighting controller 4 according to the sixth embodiment determines the irradiation pattern (light distribution) of the light L1 to irradiate the area A0 where the first person is located, based on the estimation result received from the position information server 6. In other words, the determination unit 431 determines the irradiation pattern (light distribution) of the light L1 to irradiate the area A0 where the first person is located, based on the first position information, the second position information, and the environmental information (sound information) acquired by the environmental sensor 11.

[0192] According to the lighting control system 1 of embodiment 6, the determination unit 431 can determine the light distribution taking into consideration environmental information around the first person, so that the light distribution determined by the determination unit 431 is more likely to be determined as a light distribution suitable for the area A0 where the first person is present.

[0193] Next, an example of the operation of the location information server 6 according to the sixth embodiment will be described with reference to FIG.

[0194] When starting the behavior estimation process, the position information server 6 first estimates that the behavior mode of the first person is the default behavior mode (S31). In the sixth embodiment, the default behavior mode is the first mode.

[0195] The location information server 6 acquires the location information (S32).

[0196] The location information server 6 calculates (calculates) the density of people in the area A0 where the first person is present based on the first location information and the second location information (S33). Note that the area A0 in the sixth embodiment is set for every four seats 92 (see FIG. 2). The environment sensor 11 is installed for every four seats 92.

[0197] The location information server 6 determines whether the calculated human density is equal to or less than a first threshold T1 (S34). If the calculated human density is equal to or less than the first threshold T1 (S34: Yes), the location information server 6 proceeds to step S36, and if the calculated human density is not equal to or less than the first threshold T1 (S34: No), the location information server 6 proceeds to step S35. The first threshold T1 is, for example, 1.

[0198] In the process of step S36, the location information server 6 determines whether the environmental sensor value is less than a sixth threshold T6 (S36). In the present disclosure, the "environmental sensor value" is a value based on the environmental information acquired by the environmental sensor 11. The environmental sensor value in the sixth embodiment is a sound loudness value. That is, in the process of step S36, the location information server 6 determines whether the sound loudness value detected by the environmental sensor 11 is less than the sixth threshold T6.

[0199] If the loudness of the sound detected by the environmental sensor 11 is less than the sixth threshold T6 (S36: Yes), the location information server 6 proceeds to step S37. On the other hand, if the loudness of the sound detected by the environmental sensor 11 is not less than the sixth threshold T6 (S36: No), the location information server 6 proceeds to step S31.

[0200] In the process of step S37, the location information server 6 estimates that the behavior mode of the first person is the second mode (S37), and proceeds to the process of step S32. Note that the second mode is the behavior mode in which the location information server 6 has determined that the first person is performing solo work.

[0201] In the process of step S35, the location information server 6 determines whether the calculated human density is equal to or greater than the second threshold T2 (S35). If the calculated human density is equal to or greater than the second threshold T2 (S35: Yes), the location information server 6 proceeds to the process of step S38, and if the calculated human density is not equal to or greater than the second threshold T2 (S35: No), the location information server 6 proceeds to the process of step S31. The second threshold T2 is, for example, 3.

[0202] In the process of step S38, the location information server 6 determines whether the environmental sensor value is equal to or greater than the sixth threshold value T6 (S38). If the loudness of the sound detected by the environmental sensor 11 is equal to or greater than the sixth threshold value T6 (S38: Yes), the location information server 6 proceeds to the process of step S39. On the other hand, if the loudness of the sound detected by the environmental sensor 11 is not equal to or greater than the sixth threshold value T6 (S38: No), the location information server 6 proceeds to the process of step S31.

[0203] The flowchart shown in FIG. 10 is merely an example, and the order of the processes may be changed as appropriate, and processes may be added or deleted as appropriate.

[0204] The sixth embodiment is merely one example of various embodiments of the present disclosure. The sixth embodiment can be modified in various ways depending on the design and the like as long as the object of the present disclosure can be achieved.

[0205] The environment sensor 11 may be a seating sensor that detects whether the person H0 is seated or not seated in the seat 92. By using the seating sensor as the environment sensor 11, the number of second people present in the area A0 can be detected more reliably, and thus the estimation accuracy of the behavior estimation process by the behavior estimation unit 632 is further improved.

[0206] The various configurations (including modified examples) described in the sixth embodiment can be adopted in appropriate combination with the various configurations (including modified examples) described in the first to fifth embodiments.

[0207] (Embodiment 7) As shown in FIG. 11, the environmental control system 1a of the seventh embodiment differs from the lighting control system 1 of the first embodiment (see FIG. 1) in that it includes devices (environmental devices) other than the lighting loads 3, such as a plurality of audio devices 12 and a plurality of air conditioning devices 13.

[0208] The environmental control system 1a according to the seventh embodiment includes an environmental system 2a and a positioning system 5.

[0209] The environmental system 2a includes an environmental control controller 4a, a plurality of audio devices 12, a plurality of air conditioning devices 13, a plurality of fragrance devices 14, and a plurality of video devices 15. The plurality of audio devices 12, the plurality of air conditioning devices 13, the plurality of fragrance devices 14, and the plurality of video devices 15 are separate devices from the plurality of lighting loads 3.

[0210] A plurality of acoustic devices 12 are provided in the space SP1. In the following description, when there is no need to distinguish between the plurality of acoustic devices 12, each of the plurality of acoustic devices 12 is referred to as an "acoustic device 12." The acoustic devices 12 are provided in each area A0 included in the space SP1. In the seventh embodiment, an acoustic device 12 is provided for every four seats 92, for example.

[0211] The audio device 12 outputs sound to the area A0 in which the audio device 12 is installed. The audio device 12 is, for example, a speaker.

[0212] A plurality of air conditioners 13 are provided in the space SP1. In the following description, when the plurality of air conditioners 13 are not distinguished from one another, each of the plurality of air conditioners 13 is referred to as an "air conditioner 13." An air conditioner 13 is provided for each area A0 included in the space SP1. In the seventh embodiment, an air conditioner 13 is provided for every four seats 92, for example.

[0213] The air conditioner 13 that blows air to the area A0 in which the air conditioner 13 is installed is, for example, an air conditioner.

[0214] A plurality of fragrance devices 14 are provided in space SP1. In the following description, when there is no need to distinguish between the plurality of fragrance devices 14, each of the plurality of fragrance devices 14 will be referred to as a "fragrance device 14." A fragrance device 14 is provided for each area A0 included in space SP1. In the seventh embodiment, a fragrance device 14 is provided for every four seats 92, for example.

[0215] The fragrance device 14 emits a predetermined fragrance into the area A0 in which the fragrance device 14 is installed. The fragrance device 14 is, for example, an aroma fragrance device.

[0216] A plurality of video devices 15 are provided in the space SP1. In the following description, when the plurality of video devices 15 are not distinguished from one another, each of the plurality of video devices 15 is referred to as a "video device 15." The video devices 15 are provided in each area A0 included in the space SP1. In the seventh embodiment, the video devices 15 are provided, for example, for every four seats 92.

[0217] The video device 15 provides images, videos, and the like that can be viewed in the area A0 where the video device 15 is installed. The video device 15 is, for example, a display.

[0218] The environmental controller 4a of the seventh embodiment includes a communication unit 41, a storage unit 42, and a control unit 43.

[0219] The communication unit 41 according to the seventh embodiment has an interface capable of communicating with the audio device 12, the air conditioning device 13, the fragrance device 14, and the video device 15.

[0220] The storage unit 42 according to the seventh embodiment stores, for example, environmental response information in which a plurality of environmental patterns and a plurality of behavior modes are associated one-to-one. The environmental patterns include irradiation patterns including light distribution patterns. In the environmental response information, for example, a first environmental pattern is associated with a first mode. In addition, in the environmental response information, a second environmental pattern that outputs (emits) sounds and fragrances that have the effect of easily increasing the concentration of the first person is associated with a second mode that is a behavior mode in which it is estimated that the first person is performing solo work. In addition, in the environmental response information, for example, a third environmental pattern that outputs (emits) sounds and fragrances that have the effect of easily promoting communication is associated with a third mode that is a behavior mode in which it is estimated that the first person is having a conversation or a meeting with the second person.

[0221] The determination unit 431 of the control unit 43 determines the environmental pattern of the area A0 where the first person is located, based on the estimation result received from the position information server 6 and the environmental response information.

[0222] The lighting control unit 432 of the control unit 43 has a function of controlling devices other than the lighting load 3, such as the audio device 12, the air conditioning device 13, the fragrance device 14, and the video device 15. The lighting control unit 432 controls the other devices in addition to controlling the lighting load 3, based on the determination of the determination unit 431. More specifically, the lighting control unit 432 controls devices such as the audio device 12 and the air conditioning device 13 in addition to the lighting load 3, based on the environmental pattern determined by the determination unit 431.

[0223] According to the lighting control system 1 of embodiment 7, the lighting control unit 432 can control, for example, air conditioning equipment 13 in addition to controlling the distribution of light L1 irradiating the area A0, so that the area A0 where the first person is present can be made into an environment that suits the behavior pattern of the first person.

[0224] The seventh embodiment is merely one example of various embodiments of the present disclosure. Various modifications of the seventh embodiment are possible depending on the design and the like as long as the object of the present disclosure can be achieved.

[0225] Another device may be an effective ingredient generating device that generates effective ingredients such as air ions or radicals.

[0226] The various configurations (including modified examples) described in the seventh embodiment can be adopted in appropriate combination with the various configurations (including modified examples) described in the first to sixth embodiments.

[0227] (Embodiment 8) As shown in FIG. 12, an environmental control system 1a according to the eighth embodiment differs from the environmental control system 1a according to the eighth embodiment (see FIG. 11) in that a control unit 43 of an environmental controller 4a has an input unit 433.

[0228] The environmental controller 4a according to the eighth embodiment includes a communication unit 41, a storage unit 42, and a control unit 43.

[0229] The communication unit 41 of the eighth embodiment has an interface capable of communicating with a mobile terminal 8 carried by each of the multiple people H0. For example, the communication unit 41 receives an instruction to change the environmental settings transmitted from the mobile terminal 8 when the first person performs a predetermined operation on the mobile terminal 8. The environmental settings include settings for light distribution (light distribution pattern), color adjustment (color temperature), dimming (dimming rate), and settings for other devices including the audio equipment 12, air conditioner 13, etc.

[0230] The storage unit 42 of the eighth embodiment stores history information of the change operation of the environmental setting of the area A0. The history information of the change operation is stored for each person H0.

[0231] The input unit 433 of the control unit 43 accepts an operation to change the environmental settings of the area A0 including the light distribution setting (switching of the light distribution pattern). The change operation is performed, for example, when the first person performs a predetermined operation on the mobile terminal 8. The input unit 433 stores history information of the accepted change operation in a predetermined storage area (storage unit 42).

[0232] When a second person does not exist in the area A0 where the first person exists, the determination unit 431 of the eighth embodiment determines an environment setting (environment pattern) including a light distribution (irradiation pattern) of the light L1 irradiating the area A0 based on history information of a change operation corresponding to the first person. In other words, when the behavior estimation unit 632 estimates that the second mode is selected, the determination unit 431 determines an environment setting (environment pattern) including a light distribution (irradiation pattern) of the light L1 irradiating the area A0 based on history information of a change operation corresponding to the first person.

[0233] According to the lighting control system 1 of embodiment 8, when a second person is not present in an area A0 where a first person is present (the first person is performing solo work), the area A0 where the first person is present can be made into an environment that suits the preferences of the first person.

[0234] The eighth embodiment is merely one example of various embodiments of the present disclosure. Various modifications of the eighth embodiment are possible depending on the design and the like as long as the object of the present disclosure can be achieved.

[0235] When a second person is present in the area A0 where the first person is present, the input unit 433 may be configured not to accept a change operation.

[0236] Only when the number of change operations is equal to or greater than a certain number, the determination unit 431 may determine an environmental setting (environmental pattern) including the light distribution (irradiation pattern) of the light L1 that irradiates the area A0 based on the history information of the change operations corresponding to the first person.

[0237] The various configurations (including modified examples) described in the eighth embodiment can be adopted in appropriate combination with the various configurations (including modified examples) described in the first to seventh embodiments.

[0238] (summary) As described above, the control system according to the first aspect (lighting control system 1; environmental control system 1a) is a system that controls a plurality of lighting loads (3) that irradiate light (L1) to a space (SP1) in which a plurality of people (H0) are present. The control system includes an acquisition unit (631), a determination unit (431), and a lighting control unit (432). The acquisition unit (631) acquires position information indicating the positions of the plurality of people (H0). The determination unit (431) determines the light distribution of the light (L1) that irradiates the area (A0) in which the first person is located, based on the first position information and the second position information. The first position information is position information of the first person included in the plurality of people (H0). The second position information is position information of the second person included in the plurality of people (H0). The lighting control unit (432) controls the plurality of lighting loads (3) to irradiate the area (A0) with the light distribution determined by the determination unit (431).

[0239] According to this aspect, the area (A0) where the first person is located can be illuminated with a light distribution (illumination state) according to the first position information and the second position information, and the area (A0) where the first person is present can be illuminated with a suitable light distribution.

[0240] In the control system (lighting control system 1; environmental control system 1a) according to the second aspect, in the first aspect, the determination unit (431) determines the distribution of light to be irradiated to the area (A0) based on the density of a plurality of people (H0) in the area (A0) derived from the first position information and the second position information.

[0241] According to this embodiment, the light distribution determined by the determining unit (431) is more likely to be determined as a light distribution suitable for the area (A0) where the first person is present.

[0242] In a control system (lighting control system 1; environmental control system 1a) according to the third aspect, in the first aspect, a determination unit (431) determines the distribution of light (L1) to illuminate an area (A0) based on whether or not the distance between a first person and a second person derived from the first position information and the second position information is equal to or less than a threshold distance.

[0243] According to this embodiment, the light distribution determined by the determining unit (431) is more likely to be determined as a light distribution suitable for the area (A0) where the first person is present.

[0244] In a control system (lighting control system 1; environmental control system 1a) according to a fourth aspect, in the third aspect, a determination unit (431) determines the light distribution of light (L1) to irradiate an area (A0) based on the number of second people whose distance is equal to or less than a threshold distance.

[0245] According to this aspect, the light distribution determined by the determining unit (431) is more likely to be determined as a light distribution suitable for the area (A0) where the first person is present.

[0246] A control system (lighting control system 1; environmental control system 1a) according to a fifth aspect is in any one of the first to fourth aspects, and further includes an environmental sensor (11). The environmental sensor (11) acquires environmental information around a first person in a space (SP1). A determination unit (431) determines a light distribution of light to irradiate an area (A0) based on the first position information, the second position information, and the environmental information acquired by the environmental sensor (11).

[0247] According to this aspect, the determination unit (431) can determine the light distribution taking into consideration environmental information around the first person, so that the light distribution determined by the determination unit (431) is more likely to be determined as a light distribution suitable for the area (A0) where the first person is present.

[0248] In a control system (lighting control system 1; environmental control system 1a) according to a sixth aspect, in any one of the first to fifth aspects, one or more of the lighting loads (3) are specific lighting loads capable of switching the light distribution of the light they irradiate. A lighting control unit (432) controls the specific lighting load so that the area (A0) is irradiated with the light distribution determined by the determination unit (431).

[0249] According to this aspect, it is possible to reduce the number of lighting loads, as compared to a system in which light distribution is switched by switching on / off a plurality of lighting loads in which light distribution cannot be switched.

[0250] In the control system (environmental control system 1a) according to the seventh aspect, in any one of the first to sixth aspects, the lighting control unit (432) has a function of controlling devices (audio device 12; air conditioning device 13; fragrance device 14; video device 15) other than the multiple lighting loads (3). The lighting control unit (432) controls the other devices in addition to the multiple lighting loads (3) based on the decision of the decision unit (431).

[0251] According to this embodiment, the lighting control unit (432) can control, for example, air conditioning equipment (13) in addition to controlling the distribution of light (L1) that illuminates the area (A0), thereby making it possible to create an environment suitable for the area (A0) where the first person is present.

[0252] The control system (environmental control system 1a) according to the eighth aspect is the same as the seventh aspect, but further includes an input unit (433). The input unit (433) accepts a change operation of the environmental setting of the area (A0) including the light distribution, and stores history information of the change operation in a predetermined storage area (storage unit 42). When a second person does not exist in the area (A0), the determination unit (431) determines the environmental setting including the light distribution of the light (L1) irradiating the area (A0) based on the history information of the change operation corresponding to the first person.

[0253] According to this aspect, when a second person is not present in an area (A0) where a first person is present, the area (A0) where the first person is present can be made into an environment that matches the preferences of the first person.

[0254] In a control system according to a ninth aspect (lighting control system 1; environmental control system 1a) in any of the first to eighth aspects, the lighting control unit (432) performs at least one of dimming control and color adjustment control of the light irradiating the area (A0) based on the judgment of the determination unit (431), in addition to controlling the light distribution.

[0255] According to this aspect, the lighting control unit (432) performs at least one of dimming control and color adjustment control in addition to light distribution control, so that light (L1) more suitable for the area (A0) where the first person is present can be irradiated compared to the case where only light distribution pattern control is performed.

[0256] In a control system according to a tenth aspect (lighting control system 1; environmental control system 1a) in any of the first to ninth aspects, a lighting control unit (432) controls a plurality of lighting loads (3) to illuminate an uninhabited area (A2) where a plurality of people (H0) are not present with light distribution based on historical information of light distribution stored in a predetermined memory area (memory unit 42).

[0257] According to this aspect, by illuminating the uninhabited area (A2) with light distribution based on the history information, it is possible to reduce the frequency of changing the light distribution pattern after a person (H0) arrives in the uninhabited area (A2).

[0258] In a control system (lighting control system 1; environmental control system 1a) according to an eleventh aspect, in any one of the first to tenth aspects, a determination unit (431) determines the light distribution of the light (L1) irradiating the area (A0) using a trained model. The trained model is a model trained using the relationship between the first position information and the second position information, and the light distribution of the light (L1) irradiating the area (A0).

[0259] According to this aspect, by using a model trained using the relationship between the first position information and the second position information and the light distribution of the light (L1) irradiating the area (A0), it becomes unnecessary to use information in which the first position information and the second position information are associated with the light distribution.

[0260] In a control system according to a twelfth aspect (lighting control system 1; environmental control system 1a), in any one of the first to eleventh aspects, an acquisition unit (631), a determination unit (431), and a lighting control unit (432) are provided in a single housing.

[0261] According to this aspect, it is possible to perform operations from obtaining position information to determining light distribution with functions provided in one housing.

[0262] A control system (lighting control system 1; environmental control system 1a) according to a thirteenth aspect further includes a plurality of beacon terminals (7) capable of transmitting a beacon signal in any one of the first to twelfth aspects. Each of the plurality of beacon terminals (7) can transmit a beacon signal to a mobile terminal (8) carried by each of a plurality of people (H0) and generating location information based on the beacon signal. An acquisition unit (631) acquires the location information from the mobile terminal (8).

[0263] According to this aspect, by using the portable terminal (8) carried by each of the plurality of persons (H0) as a beacon receiving terminal, it is possible to obtain location information of the plurality of persons (H0) without requiring the plurality of persons (H0) to carry a dedicated beacon receiving terminal or beacon transmitting terminal.

[0264] A control system (lighting control system 1; environmental control system 1a) according to a fourteenth aspect is in any one of the first to twelfth aspects, and further includes a plurality of lighting loads (3) and a position estimation unit (831). The position estimation unit (831) estimates the positions of the plurality of people (H0) and generates position information. One or more lighting loads (3b) among the plurality of lighting loads (3) receive a beacon signal transmitted from a beacon terminal (7). The beacon terminal (7) is a terminal carried by each of the plurality of people (H0). The position estimation unit (831) estimates the positions of the plurality of people (H0) based on information related to the beacon signal received by the one or more lighting loads (3b) and estimates the position information.

[0265] According to this embodiment, for example, the location information of the multiple people (H0) can be acquired without using the mobile terminals (8) carried by the multiple people (H0).

[0266] The configurations other than those of the first embodiment are not essential for the control system (lighting control system 1) and may be omitted as appropriate.

[0267] The lighting load (3a) according to the fifteenth aspect is a lighting load (3a) used as one of a plurality of lighting loads (3) controlled by the control system (lighting control system 1; environmental control system 1a) according to the thirteenth aspect. The lighting load (3a) has a function as one beacon terminal (7) of a plurality of beacon terminals (7).

[0268] According to this embodiment, it is possible to reduce the number of beacon terminals (7) included in the control system (lighting control system 1; environmental control system 1a).

[0269] A determination device (control server 6a) according to a sixteenth aspect is a device related to control of a plurality of lighting loads (3). The plurality of lighting loads (3) irradiate light (L1) to a space (SP1) in which a plurality of people (H0) are present. The determination device includes an acquisition unit (631) and a determination unit (431). The acquisition unit (631) acquires position information indicating the positions of the plurality of people (H0). The determination unit (431) determines the light distribution of light (L1) to irradiate an area (A0) in which the first person is located, based on the first position information and the second position information. The first position information is position information of a first person included in the plurality of people (H0). The second position information is position information of a second person included in the plurality of people.

[0270] According to this aspect, the area (A0) where the first person is located can be illuminated with a light distribution (illumination state) according to the first position information and the second position information, and the area (A0) where the first person is present can be illuminated with a suitable light distribution.

[0271] A control method according to a seventeenth aspect is a method for controlling a plurality of lighting loads (3) that irradiate light (L1) to a space (SP1) in which a plurality of people (H0) are present. The control method includes an acquisition step, a determination step, and a lighting control step. In the acquisition step, position information indicating the positions of the plurality of people (H0) is acquired. In the determination step, a light distribution of light (L1) that irradiates an area (A0) in which the first person is located is determined based on the first position information and the second position information. The first position information is position information of a first person included in the plurality of people (H0). The second position information is position information of a second person included in the plurality of people (H0). In the lighting control step, the plurality of lighting loads (3) are controlled to irradiate the area (A0) with the light distribution determined in the determination step.

[0272] According to this aspect, the area (A0) where the first person is located can be illuminated with a light distribution (illumination state) according to the first position information and the second position information, and the area (A0) where the first person is present can be illuminated with a suitable light distribution.

[0273] A program according to an eighteenth aspect is a program for causing one or more processors to execute the control method according to the seventeenth aspect.

[0274] According to this aspect, the area (A0) where the first person is located can be illuminated with a light distribution (illumination state) according to the first position information and the second position information, and the area (A0) where the first person is present can be illuminated with a suitable light distribution.

[0275] The program according to the 19th aspect is a program for causing one or more processors of a mobile terminal (8) that receives a beacon signal from a control system (lighting control system 1; environmental control system 1a) according to the 13th aspect to execute a receiving step, an estimating step, and a transmitting step. In the receiving step, a beacon signal is received from at least one of a plurality of beacon terminals (7). In the estimating step, the position of the mobile terminal (8) is estimated based on the beacon signal received in the receiving step, and position information is generated. In the transmitting step, the position information generated in the estimating step is transmitted to the control system.

[0276] According to this embodiment, the position information of a plurality of people (H0) can be transmitted from, for example, a mobile terminal (8) carried by each of the plurality of people (H0) to a control system (lighting control system 1; environmental control system 1a). [Explanation of symbols]

[0277] 1 Lighting control system (control system) 1a Environmental Control System (Control System) 11 Environmental Sensors 12 Audio equipment (separate devices) 13 Air conditioning equipment (separate equipment) 14 Fragrance equipment (separate device) 15 Video equipment (separate devices) 3. Lighting load 3a lighting load 3b Lighting load 431 Decision Section 432 Lighting control unit 433 Input section 7 Beacon Terminal 6a Control server (decision device) 631 Acquisition Department 8. Mobile Devices 831 Position estimation part A0 Area A2 Unmanned Area H0 people L1 light SP1 Space

Claims

1. A control system for controlling a plurality of lighting loads that irradiate light into a space where a plurality of people are present, an acquisition unit that acquires location information indicating locations of the plurality of people; a determination unit that determines an irradiation pattern of light to irradiate an area in which the first person is located, based on first position information that is the position information of a first person included in the plurality of people and second position information that is the position information of a second person included in the plurality of people; a lighting control unit that controls the plurality of lighting loads so as to illuminate the area with the illumination pattern determined by the determination unit; Equipped with The determination unit determines the irradiation pattern from a plurality of irradiation patterns including a first irradiation pattern, a second irradiation pattern, and a third irradiation pattern; The first irradiation pattern is an irradiation pattern having a first color temperature, a first dimming ratio, and a first light distribution pattern, The second irradiation pattern is an irradiation pattern having a second color temperature, a second dimming ratio, and a second light distribution pattern, The third irradiation pattern has a third color temperature, a third dimming ratio, and a first light distribution pattern, the second color temperature has the highest value, the first color temperature has the lowest value, and the third color temperature has the lowest value. The third dimming rate is the highest, the first dimming rate is the lowest, and the second dimming rate is the lowest. A light distribution angle of the first light distribution pattern is larger than a light distribution angle of the second light distribution pattern. Control system.

2. A control system for controlling a plurality of lighting loads that irradiate light into a space where a plurality of people are present, comprising: an acquisition unit that acquires location information indicating locations of the plurality of people; a determination unit that determines a light distribution of light to irradiate an area in which the first person is located, based on first position information that is the position information of a first person included in the plurality of people and second position information that is the position information of a second person included in the plurality of people; a lighting control unit that controls the plurality of lighting loads so as to illuminate the area with the light distribution determined by the determination unit; Equipped with The determination unit is determining the light distribution of the light illuminating the area based on whether a distance between the first person and the second person derived from the first position information and the second position information is equal to or less than a threshold distance; determining the light distribution of the light illuminating the area based on the number of the second persons whose distance is equal to or less than the threshold distance; Control system.

3. A control system for controlling a plurality of lighting loads that irradiate light into a space where a plurality of people are present, comprising: an acquisition unit that acquires location information indicating locations of the plurality of people; a determination unit that determines a light distribution of light to irradiate an area in which the first person is located, based on first position information that is the position information of a first person included in the plurality of people and second position information that is the position information of a second person included in the plurality of people; a lighting control unit that controls the plurality of lighting loads so as to illuminate the area with the light distribution determined by the determination unit; an input unit that receives an operation for changing an environmental setting of the area including the light distribution and stores history information of the change operation in a predetermined storage area; Equipped with the lighting control unit has a function of controlling a device other than the plurality of lighting loads, and controls the other device in addition to controlling the plurality of lighting loads based on a decision of the decision unit; and when the second person is not present in the area, the determination unit determines an environmental setting including the light distribution of the light irradiating the area based on the history information of the change operation corresponding to the first person. Control system.

4. The determination unit determines the irradiation pattern of the light to be irradiated to the area based on a density of the plurality of people in the area derived from the first location information and the second location information. The control system of claim 1 .

5. An environmental sensor that acquires environmental information around the first person in the space, The determination unit determines the light distribution of the light to irradiate the area based on the first position information, the second position information, and the environmental information acquired by the environmental sensor. A control system according to claim 2 or 3.

6. One or more of the lighting loads are specific lighting loads capable of switching the light distribution of the light they emit, The lighting control unit controls the specific lighting load so as to illuminate the area with the light distribution determined by the determination unit. A control system according to claim 2 or 3.

7. The lighting control unit performs at least one of dimming control and color adjustment control of the light illuminating the area, in addition to controlling the light distribution, based on a judgment of the determination unit. A control system according to claim 2 or 3.

8. The lighting control unit controls the plurality of lighting loads so as to illuminate an uninhabited area where the plurality of people are not present with a light distribution based on history information of the light distribution stored in a predetermined memory area. A control system according to claim 2 or 3.

9. The determination unit determines the light distribution of the light illuminating the area using a trained model trained using a relationship between the first location information and the second location information and the light distribution of the light illuminating the area. A control system according to claim 2 or 3.

10. The acquisition unit, the determination unit, and the lighting control unit are provided in a single housing. A control system according to any one of claims 1 to 9.

11. Further comprising a plurality of beacon terminals capable of transmitting beacon signals, Each of the plurality of beacon terminals is capable of transmitting the beacon signal to a mobile terminal carried by each of the plurality of persons and generating the location information based on the beacon signal; The acquisition unit acquires the location information from the mobile terminal. A control system according to any one of claims 1 to 10.

12. The plurality of lighting loads; a position estimation unit that estimates positions of the plurality of people and generates the position information; Further comprising: One or more of the plurality of lighting loads receive a beacon signal transmitted from a beacon terminal carried by each of the plurality of persons; The position estimation unit estimates positions of the plurality of people based on information regarding the beacon signal received by the one or more lighting loads, and estimates the position information. A control system according to any one of claims 1 to 10.

13. A lighting load used as one of the plurality of lighting loads controlled by the control system of claim 11, comprising: The beacon terminal has a function as one of the plurality of beacon terminals. Lighting load.

14. A decision device for controlling a plurality of lighting loads that irradiate light into a space in which a plurality of people are present, comprising: an acquisition unit that acquires location information indicating locations of the plurality of people; a determination unit that determines an irradiation pattern of light to irradiate an area in which the first person is located, based on first position information that is the position information of a first person included in the plurality of people and second position information that is the position information of a second person included in the plurality of people; Equipped with The determination unit determines the irradiation pattern from a plurality of irradiation patterns including a first irradiation pattern, a second irradiation pattern, and a third irradiation pattern; The first irradiation pattern is an irradiation pattern having a first color temperature, a first dimming ratio, and a first light distribution pattern, The second irradiation pattern is an irradiation pattern having a second color temperature, a second dimming ratio, and a second light distribution pattern, The third irradiation pattern has a third color temperature, a third dimming ratio, and a first light distribution pattern, the second color temperature has the highest value, the first color temperature has the lowest value, and the third color temperature has the lowest value. The third dimming rate is the highest, the first dimming rate is the lowest, and the second dimming rate is the lowest. A light distribution angle of the first light distribution pattern is larger than a light distribution angle of the second light distribution pattern. decision device.

15. A decision device for controlling a plurality of lighting loads that irradiate light into a space in which a plurality of people are present, comprising: an acquisition unit that acquires location information indicating locations of the plurality of people; a determination unit that determines a light distribution of light to irradiate an area in which the first person is located, based on first position information that is the position information of a first person included in the plurality of people and second position information that is the position information of a second person included in the plurality of people; Equipped with The determination unit is determining the light distribution of the light illuminating the area based on whether a distance between the first person and the second person derived from the first position information and the second position information is equal to or less than a threshold distance; determining the light distribution of the light illuminating the area based on the number of the second persons whose distance is equal to or less than the threshold distance; decision device.

16. A control method for controlling a plurality of lighting loads that irradiate light into a space in which a plurality of people are present, comprising: acquiring location information indicating locations of the plurality of people; a determination step of determining an irradiation pattern of light to irradiate an area in which the first person is located, based on first position information which is the position information of a first person included in the plurality of people and second position information which is the position information of a second person included in the plurality of people; a lighting control step of controlling the plurality of lighting loads so as to illuminate the area with the illumination pattern determined in the determination step; having In the determination step, the irradiation pattern is determined from a plurality of irradiation patterns including a first irradiation pattern, a second irradiation pattern, and a third irradiation pattern; The first irradiation pattern is an irradiation pattern having a first color temperature, a first dimming ratio, and a first light distribution pattern, The second irradiation pattern is an irradiation pattern having a second color temperature, a second dimming ratio, and a second light distribution pattern, The third irradiation pattern has a third color temperature, a third dimming ratio, and a first light distribution pattern, the second color temperature has the highest value, the first color temperature has the lowest value, and the third color temperature has the lowest value. The third dimming rate is the highest, the first dimming rate is the lowest, and the second dimming rate is the lowest. A light distribution angle of the first light distribution pattern is larger than a light distribution angle of the second light distribution pattern. Control methods.

17. A control method for controlling a plurality of lighting loads that irradiate light into a space in which a plurality of people are present, comprising: acquiring location information indicating locations of the plurality of people; a determining step of determining a light distribution of light to irradiate an area in which the first person is located, based on first position information that is the position information of a first person included in the plurality of people and second position information that is the position information of a second person included in the plurality of people; a lighting control step of controlling the plurality of lighting loads so as to illuminate the area with the light distribution determined in the determining step; having In the determining step, determining the light distribution of the light illuminating the area based on whether a distance between the first person and the second person derived from the first position information and the second position information is equal to or less than a threshold distance; determining the light distribution of the light illuminating the area based on the number of the second persons whose distance is equal to or less than the threshold distance; Control methods.

18. A control method for controlling a plurality of lighting loads that irradiate light into a space where a plurality of people are present, comprising: acquiring location information indicating locations of the plurality of people; a determining step of determining a light distribution of light to irradiate an area in which the first person is located, based on first position information that is the position information of a first person included in the plurality of people and second position information that is the position information of a second person included in the plurality of people; a lighting control step of controlling the plurality of lighting loads so as to illuminate the area with the light distribution determined in the determining step; an input step of accepting a change operation of the environmental setting of the area including the light distribution and storing history information of the change operation in a predetermined storage area; having In the lighting control step, a device other than the plurality of lighting loads can be controlled, and based on the determination in the determination step, the device other than the plurality of lighting loads is controlled in addition to the control of the plurality of lighting loads; In the determination step, when the second person is not present in the area, an environmental setting including the light distribution of the light irradiating the area is determined based on the history information of the change operation corresponding to the first person. Control methods.

19. A method for causing one or more processors to execute the control method according to any one of claims 16 to 18, program.

20. One or more processors of the mobile terminal that receives the beacon signal from the control system according to claim 11, a receiving step of receiving the beacon signal from at least one of the plurality of beacon terminals; an estimation step of estimating a position of the mobile terminal based on the beacon signal received in the receiving step to generate the position information; a transmitting step of transmitting the position information generated in the estimating step to the control system; In order to execute program.

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