WO2022163527A1 - Lighting system, control method, and program - Google Patents

Abstract

Provided are a lighting system, a control method, and a program capable of providing persons utilizing a space being illuminated in a facility with a more appropriate environment. A lighting system (10) is provided with a lighting device (1), and a control device. The lighting device (1) is installed in a facility (200). The control device controls the lighting device (1). On the basis of a measured value from an air quality sensor (4) which measures the air quality in the space being illuminated by the lighting device (1), the control device controls the illuminating light of the lighting device (1) to be colored illuminating light having a color different from white, in such a way as to present a sign relating to air quality.

Description

Lighting system, control method and program

TECHNICAL FIELD The present disclosure generally relates to a lighting system, a control method and a program, and more specifically relates to a lighting system including a lighting device, a control method and a program for controlling the lighting device.

Conventionally, a lighting control system having a plurality of lighting fixtures that illuminate a plurality of areas and a lighting control unit that controls the control values of one or more lighting fixtures that illuminate a non-human area or a human presence area is known. (Patent Document 1).

For example, if a plurality of people are present in the lighting area of one of the plurality of lighting fixtures, the environment in the lighting area where the plurality of people are present may deteriorate.

JP 2019-175780 A

An object of the present disclosure is to provide a lighting system, a control method, and a program capable of providing a more appropriate environment to people using the lighting target space in the facility.

A lighting system according to one aspect of the present disclosure includes a lighting device and a control device. The lighting device is arranged in a facility. The control device controls the lighting device. The control device changes the illumination light of the lighting device to a color different from white so as to present a sign regarding air quality based on the measurement value of an air quality sensor that measures the air quality of the space to be illuminated by the lighting device. Control the illumination light.

A control method according to one aspect of the present disclosure is a control method for controlling a lighting device arranged in a facility, wherein a sign regarding air quality is presented based on a measurement value of air quality in a space to be illuminated by the lighting device. The illumination light of the illumination device is controlled to color illumination light of a color different from white so as to

A program of one aspect according to the present disclosure is a program for causing a computer system to execute the control method of the above aspect.

FIG. 1 is a block diagram of a lighting system according to Embodiment 1. FIG. FIG. 2 is a schematic explanatory diagram showing a mode of use of the illumination system of the same. FIG. 3 is a partially broken plan view showing a light source of an illumination device in the same illumination system. FIG. 4 is a flow chart of the operation of the illumination system of the same. FIG. 5 is an explanatory diagram of an operation example of the lighting system of the same. FIG. 6 is a partially broken plan view showing a light source in Modification 1 of the lighting device in the lighting system. FIG. 7 is a partially broken plan view showing a light source in Modification 2 of the lighting device in the lighting system. FIG. 8 is a partially broken plan view showing a light source in Modification 3 of the lighting device in the lighting system. FIG. 9 is a partially broken plan view showing a light source in Modification 4 of the lighting device in the lighting system. FIG. 10 is a partially broken plan view showing a light source in Modified Example 5 of the lighting device in the lighting system. FIG. 11 is a schematic explanatory diagram showing a usage pattern of the lighting system according to the second embodiment.

Each drawing described in Embodiments 1, 2, etc. below is a schematic drawing, and the size ratio of each component in the drawing does not necessarily reflect the actual size ratio.

(Embodiment 1)
The lighting system 10 according to the first embodiment will be described below with reference to FIGS. 1 to 5. FIG.

(1) Overview A lighting system 10 according to the first embodiment includes a plurality of lighting devices 1 and a control device 3, as shown in FIG. The control device 3 controls the plurality of lighting devices 1 . A plurality of lighting devices 1 are arranged in a facility 200 as shown in FIG. The facility 200 is assumed to be a building, particularly an office building. Hereinafter, for convenience of explanation, the space facing the plurality of lighting devices 1 in the facility 200 is referred to as a target space 201 . The target space 201 is a space used by the person P10 within the facility 200 . Examples of target space 201 include conference rooms, working spaces, co-working spaces, and recreation rooms. The facilities 200 are not limited to office buildings, but may be offices, factories, hospitals, hotels, stadiums, amusement facilities, airports, detached houses, collective housing, and the like.

The control device 3 changes the illumination light of the illumination device 1 to a color different from white so as to present a sign regarding the air quality based on the measurement value of the air quality sensor 4 that measures the air quality of the space to be illuminated by the illumination device 1. Control to color illumination light. This makes it possible to utilize the color illumination light and the illumination device 1 that outputs the color illumination light as information media. In FIG. 5 , the light exit surfaces of two illumination devices 1 that illuminate color illumination light of a color different from white (eg, rust color) among a plurality of (eg, 12) illumination devices 1 are hatched with dots. The light exit surface of the illumination device 1 that emits white illumination light is not hatched with dots.

(2) Details The lighting system 10 according to the first embodiment will be described in further detail below with reference to FIGS. 1 to 5. FIG.

The lighting system 10 includes a plurality of lighting devices 1 and a control device 3 as described above.

For example, as shown in FIG. 2, a plurality of lighting devices 1 are arranged on a ceiling 202 facing a target space 201 in a facility 200 . A target space 201 is a space under the ceiling 202 . A plurality of desks 220, a plurality of chairs 230, and the like are arranged in the target space 201 in the facility 200 as fixtures usable by the person P10. The plurality of lighting devices 1 has a square shape when viewed from the target space 201, but is not limited to this, and may have, for example, a rectangular shape or a circular shape. A plurality of lighting devices 1 are arranged in a two-dimensional array when viewed from the target space 201 . The plurality of lighting devices 1 may be ceiling-embedded lighting fixtures, ceiling-mounted lighting fixtures, or panel-shaped lighting fixtures supported by grid-shaped support members included in the system ceiling. , Ceiling-hanging luminaires may also be used.

Each of the plurality of lighting devices 1 includes a light source 11 (see FIG. 3). For example, as shown in FIG. 3, the light source 11 has a blue LED (Light Emitting Diode) 11B, a green LED 11G, a red LED 11R, and a white LED 11W.

Blue LED 11B emits blue light. The green LED 11G emits green light. The red LED 11R emits red light. The white LED 11W emits white light. The correlated color temperature of the white light emitted from the white LED 11W is, for example, 2700K or more and 6000K or less. The white LED 11W includes, for example, a blue LED chip and a wavelength conversion section including a wavelength conversion element that converts the wavelength of part of the blue light emitted from the blue LED chip and emits light with a wavelength different from that of the blue light. have. The wavelength converting elements are phosphor particles. The wavelength conversion section includes, for example, a translucent material section and phosphor particles. In this case, the wavelength converting portion is formed of a mixture of the translucent material portion and the phosphor particles. In the wavelength conversion section, a large number of phosphor particles are present in the translucent material section. The material of the translucent material portion (translucent material) is preferably a material having high visible light transmittance. The translucent material is, for example, silicone-based resin. As the phosphor particles, for example, yellow phosphor particles that emit yellow light can be used. The light (fluorescence) emitted from the yellow phosphor particles preferably has an emission spectrum with a main emission peak wavelength in the wavelength range of 530 nm to 580 nm, for example. The yellow phosphor particles are, for example, Y ₃ Al ₅ O ₁₂ activated with Ce, but are not limited thereto. Further, the wavelength conversion part is not limited to the case where only yellow phosphor particles are included as wavelength conversion elements. For example, yellow phosphor particles, yellow-green phosphor particles, green phosphor particles, and red phosphor particles , may be included. In other words, the wavelength conversion section may contain a plurality of types of phosphor particles. Yellow-green phosphor particles emit yellow-green light. Green phosphor particles emit green light. Red phosphor particles emit red light.

Also, the light source 11 has a mounting board 110 as shown in FIG. The mounting board 110 is, for example, a printed wiring board. The blue LED 11B, the green LED 11G, the red LED 11R and the white LED 11W are mounted on the mounting board 110. FIG. The light source 11 has a plurality of sets of a blue LED 11B, a green LED 11G, a red LED 11R, and a white LED 11W on one mounting board 110 .

Each of the plurality of lighting devices 1 includes a first drive circuit that drives the plurality of blue LEDs 11B, a second drive circuit that drives the plurality of green LEDs 11G, a third drive circuit that drives the plurality of red LEDs 11R, and a plurality of A fourth drive circuit for driving the white LED 11W and a control circuit for controlling the first to fourth drive circuits are provided. In each of the plurality of lighting devices 1, the control circuit controls the first to fourth drive circuits to select any one of white light, blue light, green light, and red light as illumination light, or It is possible to output light of a color obtained by mixing two or more of these colors. In short, each of the plurality of lighting devices 1 has a chromaticity point of blue light emitted from the blue LED 11B and a chromaticity point of green light emitted from the green LED 11G in the xy chromaticity diagram of the XYZ color system. and the chromaticity point of the red light emitted from the red LED 11R, and the light of a color corresponding to an arbitrary chromaticity point within the range of the triangle having the apexes thereof can be output as colored illumination light or white light. It is possible. The white light is preferably light of chromaticity corresponding to a chromaticity point on the black body locus in the xy chromaticity diagram of the XYZ color system.

For example, the control device 3 (see FIG. 1) can be connected via a communication network to the management device 330 (see FIG. 1) that stores facility information on the facility 200 (see FIG. 2). The management device 330 is, for example, a server. A communication network may include the Internet. The communication network may consist of not only a network conforming to a single communication protocol, but also a plurality of networks conforming to different communication protocols. Communication protocols may be selected from a variety of well-known wired and wireless communication standards. A communication network may include, for example, data communication equipment such as repeater hubs, switching hubs, bridges, gateways, routers, and the like.

The facility information is, for example, part or all of three-dimensional data representing the structure of the facility 200. The three-dimensional data is data representing the facility 200 in a virtual space constructed using a computer. This type of three-dimensional data is, for example, BIM (Building Information Modeling) data. Below, three-dimensional data is called "BIM data."

BIM data includes not only data representing the shape and dimensions of the facility 200, but also various types of data related to the facility 200, such as data related to the members that make up the facility 200 and data related to equipment installed in the facility 200. are integrated. The BIM data also includes information on the latitude and longitude of the reference position of the facility 200 and information on the orientation of the facility 200 . In other words, the BIM data represents not only the data for building the facility 200 but also various data relating to the facility 200 . BIM data is information expressed using, for example, a three-dimensional CAD (Computer Aided Design) system, and is created using data representing the shape and dimensions of the facility 200 . By using BIM data, for example, it is possible to display a graphic representing the whole or part of the facility 200 on the display. BIM data is hierarchized according to the facility 200 . BIM data includes, for example, information representing the entire facility 200 in a front view or a perspective view, information representing each of a plurality of floors of the facility 200 in a plan view or a perspective view, or information representing one floor in a plan view or a perspective view. contains. For example, BIM data includes data representing a perspective view of an entire building that is the facility 200, data representing a plan view of one floor in the building, or data representing a perspective view of a room viewed from the inside. Both facility information (BIM data) and location information can be displayed using software capable of executing a program written in a programming language such as Java (registered trademark). For example, a web browser compatible with WebGL (Web Graphics Library) can display three-dimensional data of the facility 200 on the display unit.

The control device 3 has a first acquisition unit 31 that acquires BIM data from the management device 330, as shown in FIG. The control device 3 also has a second acquisition unit 32 that acquires measured values from a plurality of air quality sensors 4 (see FIGS. 1 and 2) arranged in the facility 200 (see FIG. 2). In the example of FIG. 2, in the facility 200, it is assumed that the number of people permitted to use each of the plurality of desks 220 at the same time is a predetermined number (two people), and each of the plurality of desks 220 has an air quality sensor 4. are placed. In the facility 200, as described above, it is assumed that the number of people allowed to use each of the plurality of desks 220 at the same time is a predetermined number of people. , two chairs 230 are arranged for each desk 220 .

Each of the plurality of air quality sensors 4 is arranged, for example, on the top surface of the desk 220 or the like in the target space 201 as described above. A plurality of air quality sensors 4 each have unique identification information (unique address). The air quality sensor 4 measures the air quality of the illumination target space including the desk 220 on which the air quality sensor 4 is arranged in the target space 201 . The lighting target space is the lighting area of the lighting device 1 . Air quality represents factors related to air quality for people to live healthily and comfortably, and more specifically, it is classified into environmental factors such as chemical factors, biological factors, and physical factors. Chemical agents include carbon dioxide, volatile organic compounds (VOCs), and odorants. Biological factors include house dust and pollen, and physical factors include temperature and humidity. House dust means mold, virus, mite droppings, pet skin flakes, and the like. The air quality sensor 4 measures the concentration of carbon dioxide, for example, using the carbon dioxide in the lighting target space as an air quality factor. In the lighting system 10, for example, the air quality sensor 4 transmits the identification information and the measured value of the air quality sensor 4 to the control device 3 by wireless communication, so that the second acquisition unit 32 of the control device 3 obtains a plurality of can be acquired together with the identification information.

The control device 3 also has a control unit 33 that controls the plurality of lighting devices 1 . The control device 3 and the plurality of lighting devices 1 are connected via, for example, signal lines Ls, and control signals can be transmitted from the control device 3 to the plurality of lighting devices 1 . Individual identification information (unique address) is set for each of the plurality of lighting devices 1 . A plurality of lighting devices 1 each have a storage unit that stores a unique address. In the control device 3, the control unit 33 has, as operation modes, for example, a first mode (collective control mode) in which two or more lighting devices 1 out of the plurality of lighting devices 1 are collectively controlled with the same control content; Alternatively, it has a second mode (pattern control mode) in which two or more lighting devices 1 are individually controlled in advance, and a third mode (individual control mode) in which a plurality of lighting devices 1 are individually controlled. is doing. The control unit 33 includes a memory that stores unique addresses for each of the lighting devices 1 . In addition, the control unit 33 stores a collective control address used in the first mode and a group control address used in the second mode in the memory described above. In this case, the storage units of the plurality of lighting devices 1 store group control addresses and batch control addresses in addition to unique addresses.

Based on the BIM data acquired by the first acquisition unit 31, the control device 3 identifies the positional information of the plurality of lighting devices 1 in the facility 200 (the positional coordinates of the lighting devices 1 in the facility 200). The positional information of the plurality of lighting devices 1 and the unique addresses of the plurality of lighting devices 1 are associated one-to-one and stored in the above memory. The control signal from the control unit 33 to each lighting device 1 includes address data corresponding to the unique address of the lighting device 1 to be controlled, the collective control address, or the group control address, and the control content of the lighting device 1 to be controlled ( and control data indicating the color of illumination light, lighting, lighting, blinking, illuminance, etc.). The color of the illumination light is white or a color different from white (for example, red, green, blue, rust red, etc.). The control content may include control data including control content indicating the chromaticity of the illumination light instead of including control data including the control content indicating the color of the illumination light. In addition, based on the BIM data acquired by the first acquisition unit 31, the control device 3 obtains the positional information of the plurality of desks 220 in the facility 200 or the air quality sensor 4 (the positional coordinates of the desks 220 in the facility 200 or the air quality The positional coordinates of the sensor 4) are specified, and the identification information of the plurality of lighting devices 1 in the facility 200 and the identification information of the air quality sensor 4 are associated and stored in the memory described above.

The control unit 33 acquires the measured value of the air quality sensor 4 in the second acquiring unit 32, and changes the illumination light of the lighting device 1 to a color different from white (for example, , rust red) color illumination light. More specifically, as shown in FIG. 4, when the measured value obtained from the air quality sensor 4 exceeds the threshold value (step S11: Yes), the control unit 33 presents a sign related to air quality. The illumination light of at least one illumination device 1 corresponding to the air quality sensor 4 is controlled to color illumination light of a color different from white (for example, rust red) (step S12). After that, when the measured value obtained from the air quality sensor 4 becomes equal to or less than the threshold value (step S13: Yes), control of the color illumination light ends (step S14). “Ending the control of the color illumination light” means, for example, controlling the illumination light of the illumination device 1 to be white. When controlling the illumination light of at least one illumination device 1 out of the plurality of illumination devices 1 to color illumination light of a color different from white, for example, the control unit 33 operates in the above-described second mode or third mode. . In the facility 200, when the measured value of the air quality sensor 4 exceeds the threshold, there is a possibility that the air quality in the lighting target space has deteriorated (for example, the concentration of carbon dioxide may exceed the threshold). . In such a case, the color of the colored illumination light (hereinafter also referred to as the first colored illumination light) is preferably reddish from the viewpoint of warning of deterioration of air quality, and it makes the person P10 (see FIG. 2) uncomfortable. From the viewpoint of preventing the color from deteriorating, among the reddish colors, the red rust color, which obtained high indoor color light impression evaluation results in subject experiments, is suitable. In the xy chromaticity diagram of the XYZ color system, the chromaticity point of rust red is (x, y)=(0.509, 0.385). The control device 3 also stores the position information of the air quality sensor 4 together with the position information of the desk 220 based on the BIM data.

In the lighting system 10, when the measured value of the air quality sensor 4 becomes equal to or less than the threshold after exceeding the threshold, the lighting system 10 controls the illumination light of the lighting device 1 so as to present a sign indicating improvement of the air quality. Alternatively, the illumination light may be white light. The illumination system 10 distinguishes the illumination light of the illumination device 1 from the white light and the first color illumination light from the viewpoint of notifying that the air quality has improved when the measured value of the air quality sensor 4 becomes equal to or less than the threshold value. A different second color illumination light may be controlled. As for the color of the second color illumination light, it is preferable to use forget-me-not grass color, forest color, sky blue, etc., which have been highly evaluated as pleasing and comfortable in the room color light impression evaluation. In the xy chromaticity diagram of the XYZ color system, the chromaticity point of forget-me-not color is (x, y)=(0.254, 0.270), and the chromaticity point of forest color is (x, y) = (0.321, 0.478) and the chromaticity point of sky blue is (x, y) = (0.253, 0.285).

In FIG. 5, a signal corresponding to the air quality sensor 4 is used as a sign to inform a plurality of (three in the illustrated example) persons P10 near the air quality sensor 4 whose measured value exceeds the threshold that the air quality has decreased. The illumination light of the illumination device 1 is changed to rust red illumination light. In FIG. 5, only the light exit surfaces of two illumination devices 1 outputting color illumination light among a plurality of (12) illumination devices 1 are hatched with dots.

The control device 3 (see FIG. 1) includes a computer system. A computer system is mainly composed of a processor and a memory as hardware. The function of the control device 3 is realized by the processor executing a program recorded in the memory of the computer system. The program may be recorded in advance in the memory of the computer system, may be provided through an electric communication line, or may be recorded in a non-temporary recording medium such as a computer system-readable memory card, optical disk, or hard disk drive. may be provided. A processor in a computer system consists of one or more electronic circuits, including semiconductor integrated circuits (ICs) or large scale integrated circuits (LSIs). Integrated circuits such as ICs or LSIs are called differently depending on the degree of integration, and include integrated circuits called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). In addition, FPGAs (Field-Programmable Gate Arrays), which are programmed after the LSI is manufactured, or logic devices capable of reconfiguring the connection relationships inside the LSI or reconfiguring the circuit partitions inside the LSI, shall also be adopted as processors. can be done. A plurality of electronic circuits may be integrated into one chip, or may be distributed over a plurality of chips. A plurality of chips may be integrated in one device, or may be distributed in a plurality of devices. A computer system, as used herein, includes a microcontroller having one or more processors and one or more memories. Accordingly, the microcontroller also consists of one or more electronic circuits including semiconductor integrated circuits or large scale integrated circuits.

(3) Control Method and Program The control method according to the first embodiment is a control method for controlling a plurality of lighting devices 1 arranged within the facility 200 . In the control method according to the first embodiment, the illumination light of each of the plurality of lighting devices 1 is set to be white so as to present a sign regarding the air quality based on the measured value of the air quality in the illumination target space of each of the plurality of lighting devices 1. Control to color illumination light of different colors.

The program according to the first embodiment is a program for causing the computer system (control device 3) to execute the control method described above.

(4) Summary The lighting system 10 according to the first embodiment includes a plurality of lighting devices 1 and a control device 3 . A plurality of lighting devices 1 are arranged in a facility 200 . The control device 3 controls the plurality of lighting devices 1 . The control device 3 changes the illumination light from each of the plurality of lighting devices 1 to a color different from white so as to present a sign regarding the air quality based on the measured value of the air quality in the space to be illuminated by each of the plurality of lighting devices 1. Control the illumination light. As a result, the lighting system 10 according to the first embodiment can provide a more appropriate environment to the person P10 who uses the lighting target space in the facility 200 . When the measured value acquired by the control device 3 from the air quality sensor 4 does not exceed the threshold value, the lighting system 10 uses the lighting device 1 corresponding to the air quality sensor 4 as the main lighting for illuminating the target space 201 of the facility 200. When the measurement value obtained by the controller 3 from the air quality sensor 4 exceeds the threshold, the lighting device 1 can be used as a signage lighting that presents a sign based on the deterioration of the air quality. can be done. Further, in the lighting system 10, when there is a window that can be opened and closed near the lighting target space, it is possible to prompt the person P10 in the lighting target space to ventilate by presenting a sign regarding air quality. The lighting system 10 may also be configured to control a fan or air conditioner facing the target space 201 based on the measurements of the air quality sensor 4 .

(5) Modification of lighting device in lighting system according to Embodiment 1 (5.1) Modification 1
For example, as shown in FIG. 6, the light source 11 included in each of the plurality of lighting devices 1 includes a first blue LED 111, a second blue LED 112, a first wavelength conversion section 121, a second wavelength conversion section 122, It has a visible light LED 13 (hereinafter also referred to as a first visible light LED 13) and a visible light LED 14 (hereinafter also referred to as a second visible light LED 14).

The first blue LED 111 emits first blue light. The second blue LED 112 emits second blue light. The first wavelength converter 121 includes green phosphor particles that are excited by the first blue light to emit green light. The second wavelength converter 122 includes red phosphor particles that are excited by the second blue light to emit red light. The first visible light LED 13 emits visible light of a color different from the first blue light, the second blue light, and white (hereinafter also referred to as the first visible light). The second visible light LED 14 emits visible light of a color different from the first blue light, the second blue light, and white (hereinafter also referred to as the second visible light). The peak wavelength of the second blue light may be the same as or different from the peak wavelength of the first blue light. The first visible light is, for example, red light. The second visible light is, for example, green light. The first visible light and the second visible light are not limited to different colors, and may be the same color. Moreover, the light source 11 is not limited to including both the first visible light LED 13 and the second visible light LED 14, and may include at least one of them.

First blue LED 111 , second blue LED 112 , first wavelength conversion section 121 , second wavelength conversion section 122 , first visible light LED 13 , and second visible light LED 14 are provided on mounting board 110 . there is Further, the light source 11 includes a first blue LED 111, a second blue LED 112, a first wavelength conversion section 121, a second wavelength conversion section 122, a first visible light LED 13, and a second blue LED 112 on one mounting substrate 110. It has a plurality of sets with 2 visible light LEDs 14 .

Each of the plurality of lighting devices 1 includes a drive circuit that drives the plurality of first blue LEDs 111, a drive circuit that drives the plurality of second blue LEDs 112, a drive circuit that drives the plurality of first visible light LEDs, and a plurality of and a control circuit for controlling each drive circuit.

In Modified Example 1, it is possible to improve the color rendering properties of the illumination light of the lighting device 1 when the lighting device 1 is used for main lighting purposes.

(5.2) Modification 2
For example, as shown in FIG. 7, the light source 11 included in each of the plurality of lighting devices 1 includes a first violet LED 131, a second violet LED 132, a third violet LED 133, a first wavelength converter 141, and a second It has a wavelength converter 142 and a third wavelength converter 143 . Moreover, the light source 11 further has a visible light LED 15 .

The first violet LED 131 emits first violet light. The second violet LED 132 emits second violet light. The third violet LED 133 emits third violet light. The first wavelength converter 141 includes blue phosphor particles that are excited by the first violet light to emit blue light. The second wavelength converter 142 includes green phosphor particles that are excited by the second violet light to emit green light. The third wavelength converter 143 includes red phosphor particles that are excited by the third violet light to emit red light. Visible light LED 15 emits visible light (eg, red light). The peak wavelengths of the first violet light, the second violet light, and the third violet light may be the same or different. The visible light emitted from the visible light LED 15 is not limited to red light, and may be green light, for example. Further, the light source 11 may be configured without the visible light LED 15 .

The first violet LED 131, the second violet LED 132, the third violet LED 133, the first wavelength conversion section 141, the second wavelength conversion section 142, the third wavelength conversion section 143, and the visible light LED 15 are mounted on a mounting substrate. 110. Further, the light source 11 includes a first violet LED 131, a second violet LED 132, a third violet LED 133, a first wavelength conversion section 141, a second wavelength conversion section 142, and a third A plurality of sets of the wavelength conversion unit 143 and the visible light LED 15 are provided.

Each of the plurality of lighting devices 1 includes a drive circuit that drives the plurality of first violet LEDs 131, a drive circuit that drives the plurality of second violet LEDs 132, a drive circuit that drives the plurality of third violet LEDs 133, and a plurality of A drive circuit for driving the visible light LED 15 and a control circuit for controlling each drive circuit are provided.

In Modified Example 2, it is possible to improve the color rendering properties of the illumination light of the lighting device 1 when the lighting device 1 is used for main lighting purposes.

(5.3) Modification 3
For example, as shown in FIG. 8, the light source 11 included in each of the plurality of lighting devices 1 includes a first blue LED 111, a second blue LED 112, a third blue LED 113, a first wavelength converter 121, and a second It has a wavelength converter 122 and a third wavelength converter 123 . The first blue LED 111 emits first blue light. The second blue LED 112 emits second blue light. The third blue LED 113 emits third blue light. The first wavelength converter 121 includes phosphor particles that are excited by the first blue light to emit light with a longer wavelength than the first blue light, and emits light of a first intermediate color from blue to white. The second wavelength converter 122 includes phosphor particles that are excited by the second blue light to emit light with a longer wavelength than the second blue light, and emits second intermediate color light from green to white. The third wavelength converter 123 includes phosphor particles that are excited by the third blue light to emit light with a longer wavelength than the third blue light, and emits light of a third intermediate color from red to white. The first intermediate color, the second intermediate color, and the third intermediate color are colors different from each other. First blue LED 111 , second blue LED 112 , third blue LED 113 , first wavelength conversion section 121 , second wavelength conversion section 122 , and third wavelength conversion section 123 are provided on mounting board 110 . there is In addition, the light source 11 includes the first blue LED 111, the second blue LED 112, the third blue LED 113, the first wavelength conversion section 121, the second wavelength conversion section 122, and the third blue LED 113 on one mounting substrate 110. It has a plurality of sets with the wavelength conversion section 123 .

Each of the plurality of lighting devices 1 includes a drive circuit that drives the plurality of first blue LEDs 111, a drive circuit that drives the plurality of second blue LEDs 112, a drive circuit that drives the plurality of third blue LEDs 113, and a drive circuit that drives the plurality of third blue LEDs 113. and a control circuit for controlling the circuit.

In Modified Example 3, it is possible to improve the color rendering properties of the illumination light of the lighting device 1 when the lighting device 1 is used for main lighting purposes.

(5.4) Modification 4
For example, as shown in FIG. 9, the light source 11 included in each of the plurality of lighting devices 1 includes a first blue LED 111, a second blue LED 112, a third blue LED 113, a fourth blue LED 114, and a first wavelength conversion light. A configuration including the section 121, the second wavelength conversion section 122, the third wavelength conversion section 123, and the fourth wavelength conversion section 124 may be employed. The first blue LED 111 emits first blue light. The second blue LED 112 emits second blue light. The third blue LED 113 emits third blue light. The fourth blue LED 114 emits fourth blue light. The first wavelength converter 121 includes phosphor particles that are excited by the first blue light to emit light with a longer wavelength than the first blue light, and emits light of a first intermediate color from blue to white. The second wavelength converter 122 includes phosphor particles that are excited by the second blue light to emit light with a longer wavelength than the second blue light, and emits second intermediate color light from green to white. The third wavelength converter 123 includes phosphor particles that are excited by the third blue light to emit light with a longer wavelength than the third blue light, and emits light of a third intermediate color from red to white. The fourth wavelength conversion unit 124 includes phosphor particles that are excited by the fourth blue light to emit light having a longer wavelength than the fourth blue light, and includes fourth wavelengths of colors other than blue, green, and red to white. Emit a neutral light. The first intermediate color, the second intermediate color, the third intermediate color, and the fourth intermediate color are colors different from each other. A first blue LED 111, a second blue LED 112, a third blue LED 113, a fourth blue LED 114, a first wavelength conversion section 121, a second wavelength conversion section 122, a third wavelength conversion section 123, and a fourth blue LED 114. The wavelength conversion section 124 is provided on the mounting board 110 . In addition, the light source 11 includes a first blue LED 111, a second blue LED 112, a third blue LED 113, a fourth blue LED 114, a first wavelength converter 121, and a second wavelength converter on one mounting substrate 110. A plurality of sets of the section 122 , the third wavelength conversion section 123 and the fourth wavelength conversion section 124 are provided.

Each of the plurality of lighting devices 1 includes a drive circuit that drives the plurality of first blue LEDs 111, a drive circuit that drives the plurality of second blue LEDs 112, a drive circuit that drives the plurality of third blue LEDs 113, and a plurality of A drive circuit for driving the fourth blue LED 114 and a control circuit for controlling each drive circuit are provided.

In Modified Example 4, it is possible to improve the color rendering properties of the illumination light of the lighting device 1 when the lighting device 1 is used for main lighting purposes.

(5.5) Modification 5
For example, as shown in FIG. 10, the light source 11 included in each of the plurality of lighting devices 1 includes a first blue LED 111, a second blue LED 112, a third blue LED 113, a first wavelength converter 121, and a second A configuration including the wavelength conversion unit 122 , the third wavelength conversion unit 123 , and the visible light LED 16 may be employed. The first blue LED 111 emits first blue light. The second blue LED 112 emits second blue light. The third blue LED 113 emits third blue light. The first wavelength converter 121 includes phosphor particles that are excited by the first blue light to emit light with a longer wavelength than the first blue light, and emits light of a first intermediate color from blue to white. The second wavelength converter 122 includes phosphor particles that are excited by the second blue light to emit light with a longer wavelength than the second blue light, and emits second intermediate color light from green to white. The third wavelength converter 123 includes phosphor particles that are excited by the third blue light to emit light with a longer wavelength than the third blue light, and emits light of a third intermediate color from red to white. The visible light LED 16 emits visible light of a color different from the first blue light, the second blue light, the third blue light, the first intermediate color light, the second intermediate color light, the third intermediate color light and the white light. . The first intermediate color, the second intermediate color, and the third intermediate color are colors different from each other. The first blue LED 111, the second blue LED 112, the third blue LED 113, the visible light LED 16, the first wavelength conversion section 121, the second wavelength conversion section 122, and the third wavelength conversion section 123 are mounted on a mounting substrate. 110. Further, the light source 11 includes a first blue LED 111, a second blue LED 112, a third blue LED 113, a visible light LED 16, a first wavelength conversion section 121, and a second wavelength conversion section on one mounting substrate 110. 122 and a plurality of sets of the third wavelength conversion section 123 .

Each of the plurality of lighting devices 1 includes a drive circuit that drives the plurality of first blue LEDs 111, a drive circuit that drives the plurality of second blue LEDs 112, a drive circuit that drives the plurality of third blue LEDs 113, and a plurality of A drive circuit for driving the visible light LED 16 and a control circuit for controlling each drive circuit are provided.

In Modified Example 5, it is possible to improve the color rendering properties of the illumination light of the lighting device 1 when the lighting device 1 is used for main lighting purposes.

(Embodiment 2)
A lighting system 10a according to the second embodiment will be described below with reference to FIG. Regarding the lighting system 10a according to the second embodiment, the same components as those of the lighting system 10 according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

The lighting system 10 a includes a plurality of (for example, 12) second lighting devices arranged in the facility 200 separately from the plurality of first lighting devices 1 that are the plurality of (for example, nine) lighting devices 1 . 2.

The illumination light from the plurality of second lighting devices 2 is white light. Here, the illumination light from the plurality of second lighting devices 2 is white light with a correlated color temperature of 2700K or more and 6000K or less.

The control device 3 (see FIG. 1) controls the multiple lighting devices 1 and the multiple second lighting devices 2 . The control device 3 stores identification information and position information of the plurality of second lighting devices 2 .

In the lighting system 10a, the second lighting device 2 is arranged adjacent to the first lighting device 1 in one direction. The light exit surface of the first lighting device 1 is rectangular. The light exit surface of the second lighting device 2 is rectangular. In the illumination system 10 a , the area of the light exit surface of the first lighting device 1 is smaller than the area of the light exit surface of the second lighting device 2 . In the lighting system 10 a , the lighting area of the first lighting device 1 is narrower than the lighting area of the second lighting device 2 .

The illumination system 10a can use illumination light from the plurality of second illumination devices 2 as main illumination.

In the lighting system 10a, the control device 3 changes the illumination light of each of the plurality of lighting devices 1 to white so as to present a sign regarding the air quality based on the measured value of the air quality in the illumination target space of each of the plurality of lighting devices 1. control to color illumination light of different colors. Thereby, in the lighting system 10a according to the second embodiment, it is possible to provide a more appropriate environment to the person P10 who uses the lighting target space in the facility 200. FIG. This makes it possible to utilize the colored illumination light and the first lighting device 1 that outputs the colored illumination light as information media. In FIG. 11, the light exit surface of one of the plurality of (eg, 9) first lighting devices 1 that illuminates color illumination light of a color (eg, red) different from white is indicated by dot hatching. , and the light exit surface of the first lighting device 1 that emits white illumination light is not hatched.

In the lighting system 10a, the plurality of second lighting devices 2 may be capable of adjusting the correlated color temperature of the illumination light.

(Modification)
Embodiments 1 and 2 above are merely one of various embodiments of the present disclosure. The first and second embodiments described above can be modified in various ways in accordance with the design and the like as long as the object of the present disclosure can be achieved, and the constituent elements may be combined as appropriate.

For example, the air quality sensor 4 may be an air quality sensor that measures the concentration of particulate matter (eg, PM2.5, etc.) as a factor of air quality. The air quality sensor 4 may be an air quality sensor that measures the concentration of carbon dioxide and particulate matter (for example, PM2.5, etc.) as air quality factors.

The control device 3 acquires both the concentration of carbon dioxide and the concentration of particulate matter as measured values of the air quality sensor 4, and controls the lighting device 1 based on the result of comparison between the concentration of carbon dioxide and the first threshold. The illumination light is controlled to be colored illumination light, and the illumination light of the illumination device 1 is controlled to be colored illumination light based on the comparison result between the concentration of particulate matter (for example, PM2.5) and the second threshold. may be

Also, the air quality sensor 4 may be an air quality sensor that measures the concentrations of carbon dioxide, particulate matter (for example, PM2.5, etc.), and odorous components as air quality factors. The air quality factors to be measured by the air quality sensor 4 are not limited to the above examples.

In addition, in the control device 3, one air The identification information of the quality sensor 4 may be associated with the identification information of one lighting device 1 and stored, or the identification information of one air quality sensor 4 may be associated with the identification information of two or more lighting devices 1 and stored. may be stored.

Also, the number of lighting devices 1 provided in the lighting system 10 is not limited to plural, and may be one. Moreover, the control method is not limited to a control method for controlling a plurality of lighting devices 1 , and may be a control method for controlling one lighting device 1 .

Further, in the lighting system 10, the control device 3 presents a sign regarding air quality among the plurality of lighting devices 1 based on the BIM data of the facility 200 when the measured value of the air quality sensor 4 exceeds the threshold value. It may be configured to determine the lighting device 1 to be used.

Also, the illumination device 1 may be, for example, a downlight or a spotlight. The lighting system 10 may include a plurality of types of lighting devices having different light distribution characteristics. As a result, the lighting system 10 can include a lighting device that outputs illumination light as ambient lighting and a lighting device that outputs illumination light as task lighting, thereby realizing task ambient lighting. .

Also, the lighting device 1 may be a lighting device configured to determine the direction of the illumination light by the light source and the light guide plate.

(mode)
From Embodiments 1, 2, etc., described above, the following aspects are disclosed in this specification.

A lighting system (10; 10a) according to a first aspect includes a lighting device (1) and a control device (3). A lighting device (1) is placed in a facility (200). A control device (3) controls the lighting device (1). A control device (3) controls the lighting of the lighting device (1) so as to present a sign related to air quality based on the measurement value of an air quality sensor (4) that measures the air quality of the space to be illuminated by the lighting device (1). Control the light to color illumination light of a color different from white.

With the lighting system (10; 10a) according to the first aspect, it is possible to provide a more appropriate environment to the person (P10) using the lighting target space in the facility (200).

In the lighting system (10; 10a) according to the second aspect, in the first aspect, the control device (3) indicates that the air quality is degraded when the measured value of the air quality sensor (4) exceeds the threshold. The illumination light of an illumination device (1) is controlled to present a sign.

The illumination system (10; 10a) according to the second aspect makes it possible to inform the person (P10) using the illumination target space of the deterioration of the air quality in the illumination target space by means of colored illumination light.

In the lighting system (10; 10a) according to the third aspect, in the second aspect, the control device (3) causes the measured value of the air quality sensor (4) to fall below the threshold after the measured value exceeds the threshold. If so, the illumination light of the illumination device (1) is controlled so as to present a sign indicating air quality improvement.

In the lighting system (10; 10a) according to the third aspect, it is possible to notify by the illumination light that the air quality of the illumination target space has been improved.

In the lighting system (10; 10a) according to the fourth aspect, in any one of the first to third aspects, the measured value of the air quality sensor (4) is the concentration of carbon dioxide.

The lighting system (10; 10a) according to the fourth aspect can be expected to contribute to reducing the risk of infectious diseases for the person (P10) using the facility (200).

In the lighting system (10; 10a) according to the fifth aspect, in any one of the first to third aspects, the measured value of the air quality sensor (4) is the concentration of particulate matter.

In the lighting system (10; 10a) according to the fifth aspect, the person (P10) among the people (P10) using the facility (200) who is concerned about particulate matter is advised to It is possible to notify the decrease of

A lighting system (10; 10a) according to a sixth aspect includes a plurality of lighting devices (1) in any one of the first to fifth aspects. A control device (3) controls at least one lighting device (1) for presenting a sign among a plurality of lighting devices (1).

In the lighting system (10; 10a) according to the seventh aspect, in any one of the first to sixth aspects, the lighting device (1) includes a blue LED (11B) that emits blue light and a green light that emits green light. It comprises a light source (11) comprising a green emitting LED (11G), a red emitting red LED (11R) and a white emitting white LED (11W).

In the illumination system (10; 10a) according to the seventh aspect, the degree of freedom of the color of the color illumination light is increased.

In the lighting system (10; 10a) according to the eighth aspect, in any one of the first to sixth aspects, the lighting device (1) includes a first blue LED (111) that emits the first blue light and , a second blue LED (112) that emits a second blue light, a first wavelength conversion part (121) that includes green phosphor particles that are excited by the first blue light to emit green light, and a second blue light. a second wavelength conversion part (122) containing red phosphor particles that emit red light when excited by a visible light LED that emits visible light of a color different from the first blue light, the second blue light, and the white light (13, 14) and a light source (11).

In the lighting system (10; 10a) according to the eighth aspect, the color rendering of the illumination light of the lighting device (1) when the lighting device (1) is used for main lighting is improved compared to the seventh aspect. It is possible to

In the lighting system (10; 10a) according to the ninth aspect, in any one of the first to sixth aspects, the lighting device (1) includes a first violet LED (131) that emits the first violet light and , a second violet LED (132) that emits a second violet light, a third violet LED (133) that emits a third violet light, and blue phosphor particles that are excited by the first violet light and emit blue light. a first wavelength converting part (141) containing green phosphor particles excited by the second violet light to emit green light; and a second wavelength converting part (142) containing green phosphor particles that emit green light when excited by the second violet light, and red a light source (11) having a third wavelength converting portion (143) containing red phosphor particles that emit light.

In the illumination system (10; 10a) according to the ninth aspect, the color rendering of the illumination light of the illumination device (1) when the illumination device (1) is used for main lighting is improved compared to the seventh aspect. It is possible to

In the lighting system (10; 10a) according to the tenth aspect, in any one of the first to sixth aspects, the lighting device (1) includes a first blue LED (111), a second blue LED (112 ), a third blue LED (113), a first wavelength conversion section (121), a second wavelength conversion section (122), and a third wavelength conversion section (123). . A first blue LED (111) emits a first blue light. A second blue LED (112) emits a second blue light. A third blue LED (113) emits a third blue light. The first wavelength conversion part (121) includes phosphor particles that are excited by the first blue light to emit light of a longer wavelength than the first blue light, and emits light of a first intermediate color from blue to white. The second wavelength conversion part (122) includes phosphor particles that are excited by the second blue light to emit light of a longer wavelength than the second blue light, and emits light of a second intermediate color from green to white. The third wavelength conversion part (123) includes phosphor particles that are excited by the third blue light to emit light of a longer wavelength than the third blue light, and emits light of a third intermediate color from red to white.

In the lighting system (10; 10a) according to the tenth aspect, the color rendering of the illumination light of the lighting device (1) when the lighting device (1) is used for main lighting is improved compared to the seventh aspect. It is possible to

In the lighting system (10; 10a) according to the eleventh aspect, in any one of the first to sixth aspects, the lighting device (1) includes a first blue LED (111) and a second blue LED (112 ), a third blue LED (113), a fourth blue LED (114), a first wavelength converter (121), a second wavelength converter (122), and a third wavelength converter (123) , and a fourth wavelength converter (124). A first blue LED (111) emits a first blue light. A second blue LED (112) emits a second blue light. A third blue LED (113) emits a third blue light. A fourth blue LED (114) emits a fourth blue light. The first wavelength conversion part (121) includes phosphor particles that are excited by the first blue light to emit light of a longer wavelength than the first blue light, and emits light of a first intermediate color from blue to white. The second wavelength conversion part (122) includes phosphor particles that are excited by the second blue light to emit light of a longer wavelength than the second blue light, and emits light of a second intermediate color from green to white. The third wavelength conversion part (123) includes phosphor particles that are excited by the third blue light to emit light of a longer wavelength than the third blue light, and emits light of a third intermediate color from red to white. The fourth wavelength conversion part (124) includes phosphor particles that are excited by the fourth blue light to emit light having a longer wavelength than the fourth blue light, and converts colors from colors other than blue, green, and red to white. It emits light of a fourth intermediate color.

In the illumination system (10; 10a) according to the eleventh aspect, the color rendering of the illumination light of the illumination device (1) when the illumination device (1) is used for main lighting is improved compared to the seventh aspect. It is possible to

In the lighting system (10; 10a) according to the twelfth aspect, in any one of the first to sixth aspects, the lighting device (1) includes a first blue LED (111), a second blue LED (112 ), a third blue LED (113), a first wavelength converter (121), a second wavelength converter (122), a third wavelength converter (123), a visible light LED (16), a light source (11) having a A first blue LED (111) emits a first blue light. A second blue LED (112) emits a second blue light. A third blue LED (113) emits a third blue light. The first wavelength converter (121) includes phosphor particles that are excited by the first blue light to emit light of a longer wavelength than the first blue light, and emits light of a first intermediate color from blue to white. The second wavelength conversion part (122) includes phosphor particles that are excited by the second blue light to emit light of a longer wavelength than the second blue light, and emits light of a second intermediate color from green to white. The third wavelength conversion part (123) includes phosphor particles that are excited by the third blue light to emit light of a longer wavelength than the third blue light, and emits light of a third intermediate color from red to white. The visible light LED (16) emits visible light of a color different from the first blue light, the second blue light, the third blue light, the first intermediate color light, the second intermediate color light, the third intermediate color light and the white light. radiate.

In the illumination system (10; 10a) according to the twelfth aspect, the color rendering of the illumination light of the illumination device (1) when the illumination device (1) is used for main lighting is improved compared to the seventh aspect. It is possible to

In any one of the first to twelfth aspects, the lighting system (10; 10a) according to the thirteenth aspect is separate from the first lighting device (1), which is the lighting device (1), and is a facility ( 200), further comprising a second lighting device (2). The illumination light of the second illumination device (2) is white light with a correlated color temperature of 2700K or more and 6000K or less. A control device (3) controls the second lighting device (2).

The lighting system (10; 10a) according to the thirteenth aspect enables the second lighting device (2) to be used for main lighting.

A control method according to a fourteenth aspect is a control method for controlling a lighting device (1) arranged in a facility (200), based on the measured value of the air quality of the space to be illuminated by the lighting device (1). control the illuminating light of the lighting device (1) to a color illuminating light different from white so as to present a sign about air quality.

The control method according to the fourteenth aspect makes it possible to provide a more appropriate environment to the person (P10) who uses the lighting target space in the facility (200).

A program according to the fifteenth aspect is a program for causing a computer system to execute the control method according to the fourteenth aspect.

The program according to the fifteenth aspect can provide a more appropriate environment to the person (P10) who uses the lighting target space in the facility (200).

In the lighting system (10; 10a) according to the sixteenth aspect, in any one of the first to sixth aspects,
The lighting device (1) is
a blue LED emitting blue light,
a blue-green LED that emits blue-green light;
a green LED emitting green light,
a yellow LED emitting yellow light,
an orange LED emitting orange light,
a red LED emitting red light,
a blue LED that emits blue light; and a wavelength conversion unit that includes phosphor particles that are excited by the blue light and emit light of a longer wavelength than the blue light, and that emits light of an intermediate color from blue to white. a blue light source having
It includes a blue LED that emits blue light, phosphor particles that are excited by the blue light and emits light with a longer wavelength than the blue light, and has a wavelength conversion part that emits light of an intermediate color from bluish green to white. blue-green light source,
A green color including a blue LED that emits blue light and phosphor particles that are excited by the blue light and emit light of a longer wavelength than the blue light, and that has a wavelength conversion part that emits light of an intermediate color from green to white. light source,
A yellow light including a blue LED that emits blue light and a phosphor particle that is excited by the blue light and emits light of a longer wavelength than the blue light, and has a wavelength conversion part that emits light of an intermediate color from yellow to white. light source,
An orange color including a blue LED that emits blue light and phosphor particles that are excited by the blue light and emit light of a longer wavelength than the blue light, and that has a wavelength conversion part that emits light of an intermediate color from orange to white. light source,
A red LED that includes a blue LED that emits blue light, phosphor particles that are excited by the blue light and emits light with a longer wavelength than the blue light, and a wavelength conversion unit that emits light of an intermediate color from red to white. light source,
An LED that emits light of a wavelength shorter than violet light, and a phosphor particle that is excited by the light of the short wavelength and emits light of a wavelength longer than the light of the short wavelength, and light of an intermediate color from blue to white. a blue light source comprising a wavelength converting portion that emits
An LED that emits light with a wavelength shorter than violet light, and a phosphor particle that is excited by the light with the short wavelength and emits light with a longer wavelength than the light with the short wavelength. a blue-green light source comprising a wavelength converting portion that emits light;
Intermediate color light from green to white, including an LED that emits light of a wavelength shorter than violet light and phosphor particles that are excited by the light of the short wavelength and emit light of a wavelength longer than the light of the short wavelength. a green light source comprising a wavelength converting portion that emits
Intermediate color light from yellow to white, including an LED that emits light of a wavelength shorter than violet light, and phosphor particles that are excited by the light of the short wavelength and emit light of a wavelength longer than the light of the short wavelength. a yellow light source comprising a wavelength converting portion that emits
Intermediate color light from orange to white, including an LED that emits light with a wavelength shorter than violet light, and phosphor particles that are excited by the light with the short wavelength and emit light with a longer wavelength than the light with the short wavelength. an orange light source comprising a wavelength converting portion that emits
An LED that emits light of a wavelength shorter than violet light, and a phosphor particle that is excited by the light of the short wavelength and emits light of a wavelength longer than the light of the short wavelength, and light of an intermediate color from red to white. a red light source comprising a wavelength converting portion that emits
It has at least three or more of

1 lighting device (first lighting device)
2 second lighting device 3 control device 4 air quality sensor 11R red LED
11G green LED
11B Blue LED
11W white LED
111 first blue LED
112 second blue LED
113 third blue LED
114 fourth blue LED
13 visible light LED
14 visible light LEDs
121 first wavelength converter 122 second wavelength converter 123 third wavelength converter 124 fourth wavelength converter 131 first violet LED
132 second violet LED
133 third violet LED
141 first wavelength converter 142 second wavelength converter 143 third wavelength converter 15 visible light LED
16 visible light LEDs
10, 10a lighting system 200 facility 201 target space P10 people

Claims (15)

1. a lighting device arranged in the facility;
   a control device that controls the lighting device,
   The control device changes the illumination light of the lighting device to a color different from white so as to present a sign regarding air quality based on the measurement value of an air quality sensor that measures the air quality of the space to be illuminated by the lighting device. to control the illumination light,
   lighting system.
2. The control device controls the illumination light of the lighting device so as to present a sign indicating deterioration of air quality when the measured value exceeds a threshold.
   10. The lighting system of claim 1.
3. The control device controls the illumination light of the lighting device so as to present a sign indicating air quality improvement when the measured value becomes equal to or less than the threshold after the measured value exceeds the threshold.
   3. A lighting system according to claim 2.
4. wherein the measured value of the air quality sensor is the concentration of carbon dioxide;
   Illumination system according to any one of claims 1-3.
5. wherein the measured value of the air quality sensor is the concentration of particulate matter;
   Illumination system according to any one of claims 1-3.
6. comprising a plurality of the lighting devices,
   The control device controls at least one lighting device that presents the sign among the plurality of lighting devices.
   Illumination system according to any one of the preceding claims.
7. The lighting device
   a blue LED that emits blue light;
   a green LED emitting green light;
   a red LED emitting red light;
   a light source having a white LED that emits white light;
   Illumination system according to any one of the preceding claims.
8. The lighting device
   a first blue LED that emits a first blue light;
   a second blue LED that emits a second blue light;
   a first wavelength conversion unit including green phosphor particles that are excited by the first blue light to emit green light;
   a second wavelength conversion unit including red phosphor particles that are excited by the second blue light to emit red light;
   a visible light LED that emits visible light of a color different from the first blue light, the second blue light, and the white light;
   Illumination system according to any one of the preceding claims.
9. The lighting device
   a first violet LED that emits a first violet light;
   a second violet LED that emits a second violet light;
   a third violet LED that emits third violet light;
   a first wavelength conversion unit including blue phosphor particles that are excited by the first violet light to emit blue light;
   a second wavelength conversion unit including green phosphor particles that are excited by the second violet light to emit green light;
   a third wavelength conversion unit including red phosphor particles that emit red light when excited by the third violet light,
   Illumination system according to any one of the preceding claims.
10. The lighting device
    a first blue LED that emits a first blue light;
    a second blue LED that emits a second blue light;
    a third blue LED that emits a third blue light;
    a first wavelength conversion unit that includes phosphor particles that are excited by the first blue light to emit light of a longer wavelength than the first blue light, and that emits light of a first intermediate color from blue to white;
    a second wavelength conversion unit that includes phosphor particles that are excited by the second blue light to emit light of a longer wavelength than the second blue light, and that emits light of a second intermediate color from green to white;
    a third wavelength conversion unit that includes phosphor particles that are excited by the third blue light to emit light of a longer wavelength than the third blue light, and that emits light of a third intermediate color from red to white; with a light source,
    Illumination system according to any one of the preceding claims.
11. The lighting device
    a first blue LED that emits a first blue light;
    a second blue LED that emits a second blue light;
    a third blue LED that emits a third blue light;
    a fourth blue LED that emits a fourth blue light;
    a first wavelength conversion unit that includes phosphor particles that are excited by the first blue light to emit light of a longer wavelength than the first blue light, and that emits light of a first intermediate color from blue to white;
    a second wavelength conversion unit that includes phosphor particles that are excited by the second blue light to emit light of a longer wavelength than the second blue light, and that emits light of a second intermediate color from green to white;
    a third wavelength conversion unit that includes phosphor particles that are excited by the third blue light to emit light of a longer wavelength than the third blue light, and that emits light of a third intermediate color from red to white;
    The phosphor particles are excited by the fourth blue light to emit light having a longer wavelength than the fourth blue light, and emit light of a fourth intermediate color from a color different from blue, green and red to white. A light source having a four-wavelength conversion unit,
    Illumination system according to any one of the preceding claims.
12. The lighting device
    a first blue LED that emits a first blue light;
    a second blue LED that emits a second blue light;
    a third blue LED that emits a third blue light;
    a first wavelength conversion unit that includes phosphor particles that are excited by the first blue light to emit light of a longer wavelength than the first blue light, and that emits light of a first intermediate color from blue to white;
    a second wavelength conversion unit that includes phosphor particles that are excited by the second blue light to emit light of a longer wavelength than the second blue light, and that emits light of a second intermediate color from green to white;
    a third wavelength conversion unit that includes phosphor particles that are excited by the third blue light to emit light of a longer wavelength than the third blue light, and that emits light of a third intermediate color from red to white;
    Emitting visible light of a color different from the first blue light, the second blue light, the third blue light, the first intermediate color light, the second intermediate color light, the third intermediate color light and white light a light source having a visible light LED that
    Illumination system according to any one of the preceding claims.
13. further comprising a second lighting device that is separate from the first lighting device that is the lighting device and that is arranged in the facility;
    Illumination light of the second lighting device is white light with a correlated color temperature of 2700 K or more and 6000 K or less,
    The control device controls the second lighting device,
    Illumination system according to any one of the preceding claims.
14. A control method for controlling a lighting device arranged in a facility, comprising:
    Controlling the illumination light of the illumination device to color illumination light of a color different from white so as to present a sign regarding air quality based on the air quality measurement value of the space to be illuminated by the illumination device;
    control method.
15. to the computer system,
    A program for executing the control method according to claim 14.

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