WO2022163529A1

WO2022163529A1 - Illuminating system, control method, and program

Info

Publication number: WO2022163529A1
Application number: PCT/JP2022/002197
Authority: WO
Inventors: 孝典明田; 健一郎田中; 仁吉澤; 真吾長友; 一樹北村; 達也高橋; 達雄古賀; 知典山田; 千人浦
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2021-01-29
Filing date: 2022-01-21
Publication date: 2022-08-04
Also published as: JPWO2022163529A1; JP7489622B2

Abstract

The present disclosure addresses the problem of providing illuminating light corresponding to an individual utilizing an illumination target area. An illuminating system (10) is provided with an illuminating device (1), and a control device (3). The illuminating device (1) is disposed in a facility (200) to illuminate a personal illumination target area in the facility (200). The control device (3) controls the illuminating device (1). The control device (3) controls the color of illuminating light of the illuminating device (1) on the basis of user information relating to a user utilizing the illumination target area. The user information includes state information relating to a state of the user. The control device (3) controls the color of the illuminating light of the illuminating device (1) in such a way as to present a sign representing the state of the user, on the basis of the state information.

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 particularly relates to a lighting system including lighting devices arranged in a facility, a control method for controlling the lighting device, and a program.

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. (see Patent Document 1).

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 illumination light according to the individual who uses the illumination target area.

A lighting system according to one aspect of the present disclosure includes a lighting device that is arranged in a facility to illuminate a lighting target area for personal use in the facility, and a control device that controls the lighting device. The control device controls the color of illumination light from the lighting device based on user information about a user who is using the illumination target area. The user information includes status information regarding the status of the user. Based on the state information, the control device controls the color of the illumination light of the lighting device so as to present a sign indicating the state of the user.

A control method according to one aspect of the present disclosure is a control method for controlling a lighting device that is arranged in a facility and illuminates a lighting target area for personal use in the facility. The control method includes controlling the color of illumination light of the illumination device based on user information about a user who is using the illumination target area. The user information includes status information regarding the status of the user. Controlling the color of the illumination light of the lighting device includes controlling the color of the illumination light of the lighting device to present a sign indicating the state of the user based on the state information.

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

A lighting system according to one aspect of the present disclosure includes a lighting device that is arranged in a facility to illuminate a lighting target area for personal use in the facility, and a control device that controls the lighting device. The control device acquires motion information indicating a motion of a user who is using the illumination target area. The control device inputs the acquired motion information into a learned model that has been machine-learned using information on the movement of a person that can occur in the illumination target area and information on the state of the person as learning data, and inputs the acquired motion information to the The state of the user is estimated based on the output result output from the trained model. The control device controls the color of illumination light from the lighting device based on the estimation result.

A control method according to one aspect of the present disclosure is a control method for controlling a lighting device that is arranged in a facility and illuminates a lighting target area for personal use in the facility. The control method includes obtaining, by a control device, motion information indicating a motion of a user during use of the illumination target area. In the control method, the obtained motion information is added to a learned model machine-learned by the control device using information on the movement of a person that can occur in the illumination target area and information on the state of the person as learning data. and estimating the state of the user based on the output result output from the trained model. The control method includes controlling the color of the illumination light of the lighting device based on the estimation result by the control device.

1 is a block diagram of a lighting system according to an embodiment of the present disclosure; FIG. FIG. 2 is a schematic explanatory diagram showing a mode of use of the illumination system of the same. FIG. 3 is a schematic explanatory diagram of an illumination device and an illumination target area in the same illumination system. FIG. 4 is a partially cutaway plan view showing the light source of the lighting device. FIG. 5 is an explanatory diagram for explaining a change in color of illumination light from the illumination device of the same. FIG. 6 is a flow chart of the operation of the illumination system of the same. 7 is a partially broken plan view showing the light source of the lighting device in the lighting system of Modification 1. FIG. FIG. 8 is a partially broken plan view showing the light source of the lighting device in the lighting system of Modification 2. FIG. FIG. 9 is a partially broken plan view showing the light source of the lighting device in the lighting system of Modification 3. FIG. FIG. 10 is a partially broken plan view showing the light source of the lighting device in the lighting system of Modification 4. FIG. 11 is a partially broken plan view showing the light source of the lighting device in the lighting system of Modification 5. FIG. FIG. 12 is a block diagram of a lighting system according to Modification 6. As shown in FIG. FIG. 13 is a schematic explanatory diagram showing a usage pattern of the illumination system of the same. FIG. 14 is a block diagram of a lighting system of Modification 7. FIG.

The lighting system, control method, and program according to the embodiment will be described below with reference to the drawings. Each drawing described in the following embodiments is a schematic drawing, and the ratio of the size and thickness of each component in the drawing does not necessarily reflect the actual dimensional ratio.

(1) Overview A lighting system 10 of the present embodiment includes a lighting device 1 and a control device 3, as shown in FIG. A lighting system 10 of this embodiment includes a 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. For convenience of explanation, the space facing the lighting device 1 in the facility 200 is hereinafter referred to as a target space 201 . A target space 201 is a space used by people in the facility 200 . Examples of the target space 201 include meeting rooms, working spaces, co-working spaces, shared offices, 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.

Each of the plurality of lighting devices 1 illuminates a predetermined area within the target space 201 . Hereinafter, the predetermined area illuminated by each lighting device 1 is also referred to as an illumination target area R1. A plurality of lighting devices 1 correspond to a plurality of different illumination target regions R1 in facility 200, respectively. Each illumination device 1 illuminates a corresponding illumination target region R1. In FIG. 2 , the area corresponding to the floor surface 203 in the illumination target area R1 illuminated by each lighting device 1 is shown on the floor surface 203 of the facility 200 as an area surrounded by a dashed line. In the example of FIG. 2, the size of the illumination target region R1 irradiated with the illumination light from the illumination device 1 is the same as the size of the light exit surface of the illumination device 1. Larger than the exit surface. In this embodiment, it is assumed that the target space 201 is a shared office and that the illumination target region R1 is used by individuals. That is, the lighting device 1 illuminates the lighting target region R1 for personal use within the facility 200 .

The control device 3 controls the lighting device 1. The control device 3 adjusts the color of the illumination light of the illumination device 1 based on the user information regarding the user who is using the illumination target region R1. As a result, the illumination system 10 of the present embodiment can provide illumination light suitable for an individual who uses the illumination target region R1.

(2) Details The lighting system 10 of the present embodiment will be described in further detail below with reference to FIGS. 1 to 6. FIG.

As described above, the lighting system 10 includes the lighting device 1 and the control device 3. A lighting system 10 includes a plurality of lighting devices 1 .

A plurality of lighting devices 1 are arranged, for example, on a ceiling 202 facing a target space 201 in a facility 200 . A target space 201 is a space under the ceiling 202 . In the target space 201, there are a plurality of illumination target regions R1 corresponding to the plurality of lighting devices 1, respectively. In a target space 201 in a facility 200, a desk 220, a chair 230, and the like are arranged as fixtures that can be used by people. In this embodiment, one desk 220 and one chair 230 are arranged for each illumination target region R1.

The control device 3 determines the color of the illumination light from each of the plurality of illumination devices 1 to the person (see FIG. 3, hereinafter also referred to as “user P10”) who is using the illumination target region R1 corresponding to this illumination device 1. Control based on user information about

As shown in FIG. 1, the illumination system 10 is communicatively connected with an acquisition system 4 for acquiring information about the illumination target region R1. The control device 3 controls the lighting device 1 based on the information acquired from the acquisition system 4 . Acquisition system 4 is not included as a component of illumination system 10 here, but may be included as a component of illumination system 10 .

(2.1) Lighting Device As shown in FIG. 2 , each of the plurality of lighting devices 1 has a square shape when viewed from the target space 201 . However, the shape is not limited to this, and each of the plurality of lighting devices 1 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 . Each of the plurality of lighting devices 1 may be a ceiling-embedded lighting fixture, a ceiling-mounted lighting fixture, or a panel-shaped lighting fixture supported by a grid-shaped support member included in the system ceiling. Alternatively, a ceiling-suspended lighting fixture may be used.

Each of the plurality of lighting devices 1 includes a light source 11 (see FIG. 4). For example, as shown in FIG. 4, 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.

(2.2) Acquisition System The acquisition system 4 acquires information on the person (user P10) who uses the illumination target region R1.

The acquisition system 4 may include at least one (all in this embodiment) of the operation device 41, the voice input device 42, the imaging device 43, the sensor device 44, the terminal device 45, and the server 46.

The operating device 41 accepts human operations. The operating device 41 is provided in the facility 200 . For example, one or more operation devices 41 are provided for each illumination target region R1. The operating device 41 may include, for example, push buttons, a keyboard of a computer system, a touch panel display of a tablet, and the like. The operation device 41 has a communication function with the control device 3, and transmits an operation signal indicating various information to the control device 3 by being operated by a person.

In one example, when operated by a person (operator), the operation device 41 outputs an operation signal indicating usage information indicating that the corresponding illumination target region R1 is being used by the operator. Send to For example, as shown in FIGS. 2 and 3, a push button 410 for indicating that the illumination target region R1 is being used is arranged on the desk 220 arranged in the illumination target region R1. By pressing this push button 410 , an operation signal indicating usage information is transmitted to the control device 3 . Thus, the information indicated by the operation signal can include usage information indicating that the illumination target region R1 is being used by the operator (user P10).

In one example, the operation device 41 is operated by a person (operator) to transmit to the control device 3 an operation signal indicating state information regarding the current state of itself recognized by the operator. Examples of the current state of the operator recognized by the operator can include a state of being positive about conversation with others and a state of being negative about conversation with others (state of not wanting others to talk to you). The state information indicated by the operation signal may include any one of the above "examples of the operator's current state recognized by the operator". For example, when a plurality of push buttons for indicating a plurality of states of the operator are arranged on the desk 220 arranged in the illumination target region R1, pressing any one of the plurality of push buttons , an operation signal indicating the state information is transmitted to the control device 3 . Thus, the information indicated by the operation signal can include state information regarding the state of the user P10 who is using the illumination target region R1.

In one example, the operation device 41 is operated by a person (operator) to transmit to the control device 3 an operation signal indicating work information related to work performed by the operator in the illumination target region R1. Examples of work performed by the operator may include work involving looking at paper media and work involving looking at the display of a computer system. The work information indicated by the operation signal may include any one of the above "examples of work performed by the operator". For example, when a plurality of push buttons corresponding to a plurality of types of work that the operator may perform in the illumination target region R1 are arranged on the desk 220 arranged in the illumination target region R1, a plurality of push buttons are arranged. By pressing one of the buttons, an operation signal indicating work information is transmitted to the control device 3 . In this way, the information indicated by the operation signal can include work information related to the work performed by the user P10 who is using the illumination target region R1.

In one example, the operation device 41 is operated by a person (operator) to transmit an operation signal indicating attribute information about the attributes of the operator to the control device 3 . Examples of the attributes of the operator may include the operator's name, affiliation (company where the operator works, assigned department within the company, etc.). The attribute information indicated by the operation signal may include at least one of the above "examples of operator attributes". For example, if a keyboard and a display for inputting the operator's name and affiliation are arranged on the desk 220 arranged in the lighting target region R1, the name and affiliation can be entered using these. Then, an operation signal indicating attribute information is transmitted to the control device 3 . In this way, the information indicated by the operation signal can include attribute information regarding the attributes of the user P10 who is using the illumination target region R1. The operating device 41 may include, for example, a scanner capable of reading printed or screen-displayed codes (one-dimensional code, two-dimensional code, etc.). In this case, an operation signal indicating attribute information is transmitted to the control device 3 by reading a code displayed on a paper medium held by the operator or displayed on the display of the terminal device 45 with a scanner.

In one example, the operation device 41 is operated by a person (operator) to transmit an operation signal indicating schedule information regarding the operator's schedule to the control device 3 . A schedule may include scheduled start times for one or more tasks. For example, when a keyboard and a display for inputting the scheduled start time of the operator's next task (for example, a meeting in another conference room) are arranged on the desk arranged in the lighting target region R1, By inputting the scheduled start time of the next task using these, an operation signal indicating schedule information is transmitted to the control device 3 . Thus, the information indicated by the operation signal can include schedule information regarding the schedule of the user P10 who is using the illumination target region R1.

The voice input device 42 acquires surrounding voices. A voice input device 42 is provided in the facility 200 . For example, one voice input device 42 is provided for each lighting target region R1. The voice acquired by the voice input device 42 may include the voice of the user P10 who is using the lighting target region R1. The voice input device 42 has, for example, a microphone. The voice input device 42 has a communication function, and transmits to the control device 3 a voice signal indicating the voice acquired by the microphone.

The imaging device 43 images one or more illumination target regions R1. Imaging device 43 includes a camera. The imaging element in the camera is a CMOS (Complementary MOS) image sensor. The imaging element is not limited to a CMOS image sensor, and may be, for example, a CCD (Charge Coupled Device) image sensor. The imaging device 43 is provided in the facility 200 . In the illumination system 10, a plurality of imaging devices 43 may be provided in one-to-one correspondence with the plurality of illumination target regions R1, or the imaging devices 43 that capture images of two or more illumination target regions R1 in the target space 201. may be provided. Individual identification information (address) is set in the imaging device 43 . The imaging device 43 has a communication function, and transmits an image signal representing a captured image to the control device 3 . The image may be a still image, a moving image, or a so-called frame-by-frame image including a plurality of still images captured periodically.

The sensor device 44 detects the state of the lighting target region R1 or the state of the person (user P10) present in the lighting target region R1. The sensor device 44 is provided at the facility 200 . For example, one sensor device 44 is provided in a one-to-one correspondence with each illumination target region R1. The sensor device 44 has a communication function and transmits a sensor signal indicating the detection result to the control device 3 .

The sensor device 44 may include a seating sensor 440 (see FIG. 3) provided on the chair 230 placed in the illumination target region R1. The seating sensor 440 is provided, for example, on the seat surface of the chair 230 and detects the presence of a person sitting on the chair 230 . For example, the sensor signal transmitted from the seating sensor 440 may be a binary signal indicating whether or not a person is seated in the chair 230 on which the seating sensor 440 is provided.

The terminal device 45 is a computer device held by the user P10 who uses the illumination target region R1. The terminal device 45 is, for example, an information terminal such as a personal computer held by the user P10, a smart phone, or a tablet. The terminal device 45 includes an input device such as a keyboard and a mouse, and a display device such as a display. The terminal device 45 may have a touch panel display as an input device and a display device. The terminal device 45 held by the user P10 may be a device owned by the user P10 or a device lent to the user P10 by another person. The terminal device 45 is not limited to a device exclusively owned by the user P10, and may be a device shared by a plurality of people and owned by the user P10. The terminal device 45 has a communication function, and transmits terminal signals indicating various information to the control device 3 by being operated by the user P10, for example.

In one example, the terminal device 45 is operated by the user P10 so that the user P10 recognizes his or her current state (positive state for conversation with others, passive state for conversation with others). etc.) to the control device 3. For example, if an application for notifying the control device 3 of the current state of the user P10 is installed in the terminal device 45, the user P10 operates the terminal device 45 according to this application to display the state information. A terminal signal is sent to the controller 3 . For example, when an application for conducting a web conference with an external terminal device is installed in the terminal device 45, while the user P10 is conducting a web conference using this application, the user P10 A terminal signal is sent to the control device 3 indicating that the state is in a state of reluctance to talk with others.

In one example, the terminal device 45 is operated by the user P10 to transmit to the control device 3 a terminal signal indicating work information related to the work that the user P10 is to perform in the illumination target region R1. For example, if an application for notifying the control device 3 of the work schedule of the user P10 is installed in the terminal device 45, the user P10 operates the terminal device 45 according to this application to display work information. A terminal signal is sent to the controller 3 .

In one example, the terminal device 45 is operated by the user P10 to transmit a terminal signal indicating attribute information regarding the attributes of the user P10 to the control device 3 . Examples of attributes of the user P10 may include the user P10's name, affiliation, and the like. For example, if an application for notifying the control device 3 of the attributes of the user P10 is installed in the terminal device 45, the user P10 operates the terminal device 45 according to this application to generate a terminal signal indicating the attribute information. is sent to the control device 3 . For example, a beacon signal transmitted by the terminal device 45 may be used as a kind of terminal signal indicating attribute information. For example, the beacon signal contains identification information unique to the terminal device 45 . In that case, a first data table that associates the identification information of the terminal device 45 with the owner of the terminal device 45, and a second data table that associates the owner of the terminal device 45 with its attribute information, etc. are used. , it is possible to obtain the attribute information of the user P10 based on the beacon signal.

In one example, the terminal device 45 is operated by the user P10 to transmit a terminal signal indicating schedule information regarding the schedule of the user P10 to the control device 3 . For example, when an application for managing the schedule of the user P10 is installed in the terminal device 45, a terminal signal indicating schedule information is transmitted to the control device 3 based on the schedule input to the application.

In this way, the information indicated by the terminal signal can include status information, work information, attribute information, schedule information, and the like.

In addition, the information indicated by the terminal signal may include information of an image captured by the camera included in the terminal device 45. The information indicated by the terminal signal may include information on the voice acquired by the microphone included in the terminal device 45 . Information indicated by the terminal signal may include information acquired by a sensor included in the terminal device 45 .

The server 46 is a server device provided inside or outside the facility 200 . The server 46 has a communication function with the control device 3, for example. The server 46 transmits a server signal indicating various information to the control device 3 when receiving a signal from another device. For example, server 46 has the first data table and second table described above. When the server 46 receives from the control device 3 an inquiry signal for inquiring about the attributes of the holder of the terminal device 45 that is the transmission source of the beacon signal, the server 46 controls the server signal indicating the attribute information about the attributes of the holder of the terminal device 45. Send (reply) to device 3 .

(2.3) Controller The controller 3 includes a computer system with one or more processors and memory. At least part of the functions of the control device 3 are realized by the processor of the computer system executing a program recorded in the memory of the computer system. The program may be recorded in a memory, provided through an electric communication line such as the Internet, or recorded in a non-temporary recording medium such as a memory card and provided.

For example, the control device 3 can be connected to a management device that stores facility information of the facility 200 via a communication network. A management device is, for example, a server. The management device may be the same as or different from the server 46 described above. The control device 3 acquires facility information from the management device.

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, data representing a perspective view of a room viewed from the inside, and the like. 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 controls a plurality of lighting devices 1. As shown in FIG. 1 , the control device 3 has a control section 34 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.

Based on the BIM data acquired from the management device, the control device 3 identifies the position information of the plurality of lighting devices 1 within the facility 200 (positional coordinates of the lighting devices 1 within the facility 200), The positional information of the illumination device 1 and the unique addresses of the plurality of illumination devices 1 are associated one-to-one and stored in the memory. The control signal from the control unit 34 to each lighting device 1 includes address data corresponding to the unique address of the lighting device 1 to be controlled, and control details of the lighting device 1 to be controlled (illumination light color, lighting, lighting, blinking, etc.). , illuminance, etc.). The color of the illumination light is white or a color different from white (for example, red, green, blue, 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.

The control device 3 individually controls the plurality of lighting devices 1 according to the state of the corresponding lighting target region R1. In the following description, one lighting device 1 out of the plurality of lighting devices 1 and an illumination target region R1 corresponding to this lighting device 1 will be focused on. In FIG. 3, the light exit surface of the illumination device 1 of interest and the area corresponding to the floor surface 203 in the corresponding illumination target area R1 are hatched with dots.

The control device 3 controls the color of the illumination light of the illumination device 1 based on the information indicated by the signal received from the acquisition system 4. The control device 3 controls the color of the illumination light of the lighting device 1 based on the information indicated by the operation signal, the audio signal, the sensor signal, the image signal, and the terminal signal received from the acquisition system 4, for example.

As shown in FIG. 1, the control device 3 includes an acquisition unit 31, a determination unit 32, and a determination unit 33 in addition to the control unit 34.

The acquisition unit 31 has a communication interface for communicating with the acquisition system 4 . Acquisition unit 31 can be connected to acquisition system 4 via a communication network. Communication networks may include local area networks, the Internet, telephone networks, and the like. A communication network may consist not only of a network conforming to a single communication protocol, but also of 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 data communication equipment such as repeater hubs, switching hubs, bridges, gateways, routers, and the like.

The acquisition unit 31 receives signals from the acquisition system 4 . Specifically, the acquisition unit 31 receives an operation signal from the operation device 41, an audio signal from the audio input device 42, a sensor signal from the sensor device 44, an image signal from the imaging device 43, and a terminal signal from the terminal device 45. , and server signals from the server 46 .

The determination unit 32 determines the state of the illumination target region R1 and the state of the user P10 who uses the illumination target region R1 based on the information indicated by the signal received from the acquisition system 4.

The determination unit 33 determines the color of the illumination light of the lighting device 1 based on the determination result of the determination unit 32 . “Determine the color of the illumination light of the illumination device 1” is included in the control signal to be output to the illumination device 1 so that the illumination device 1 emits the illumination light of the color determined by the determination unit 33. Determining control data.

The control unit 34 controls the illumination device 1 so that illumination light of the color determined by the determination unit 33 is emitted from the illumination device 1 . The control unit 34 controls the lighting device 1 by transmitting a control signal to the lighting device 1 .

In this embodiment, the determination unit 32 has at least one of the following first to seventh functions.

The first function is whether or not the illumination target area R1 is being used by the user P10, that is, the state in which the illumination target area R1 is being used by someone (the user P10) (hereinafter also referred to as "in use state"). ) or a state of free space not used by anyone (hereinafter also referred to as “free state”). The in-use state may include only a state in which the user P10 is actually staying in the illumination target region R1, or a state in which the user P10 intends to use the illumination target region R1, but the illumination target region R1 It may further include a state of being temporarily away from.

In the first function, the determination unit 32 makes determinations mainly using information indicated by sensor signals. Here, when the determination unit 32 receives a sensor signal indicating that a person is seated on the chair 230 from the seating sensor 440, the determination unit 32 determines that the lighting target region R1 is in use. For example, when receiving a sensor signal from the seating sensor 440 indicating that no one is sitting on the chair 230, the determination unit 32 determines that the illumination target region R1 is in the free state.

The judgment unit 32 may make a judgment further using the image signal and/or the operation signal in the first function. For example, even if the determination unit 32 receives a sensor signal indicating that no person is sitting on the chair 230 from the seating sensor 440, the image of the illumination target region R1 indicated by the image signal includes a person (user P10). If so, it may be determined that the user P10 is just standing up from the chair 230, and that the illumination target region R1 is in use. For example, the determination unit 32 receives a sensor signal from the seating sensor 440 indicating that no person is sitting on the chair 230, and even if the image of the illumination target region R1 indicated by the image signal does not include a person, When an operation signal indicating that the illumination target area R1 is being used is received from the operating device 41, it is determined that the user P10 is only temporarily away from the illumination target area R1, and the illumination target area is determined. It may be determined that R1 is in use. That is, in the first function, the determination unit 32 may determine the state of the illumination target region R1 by using a combination of information indicated by the sensor signal, the image signal, and the operation signal.

The determination unit 33 determines the color of the illumination light based on the state of the illumination target region R1 determined by the first function of the determination unit 32. For example, the determination unit 33 determines the color of the illumination light so that the color of the illumination light differs depending on whether the state is determined to be in use or the state is determined to be free. For example, when the in-use state is determined, the determination unit 33 determines the color of the illumination light to be white (chromaticity corresponding to a chromaticity point on the blackbody locus, for example, a color temperature range of 2700K or more and 6000K or less). . Further, when the free state is determined, the determination unit 33 determines the color of the illumination light to be a color different from white, for example, a blue-based color. For example, when the illumination target region R1 changes from the free state to the in-use state, the determining unit 33 changes the illumination light of the lighting device 1 so that the color corresponding to the free state changes to the color corresponding to the in-use state. 5, the control unit 34 changes the color of the illumination light of the lighting device 1 from the color corresponding to the free state to the color corresponding to the in-use state. In FIG. 5, the different colors of the illumination light on the light exit surface of the illumination device 1 are distinguished by different dot hatching. By differentiating the color of the illumination light between the in-use state and the free state, it is possible to grasp at a glance whether the illumination target region R1 is in use or free space. In this way, the control device 3 controls the color of the illumination light of the illumination device 1 so as to present a sign indicating that the illumination target region R1 is a free space when the illumination target region R1 is not in use.

The second function is to determine the state of the user P10 who is using the illumination target area R1. The state of the user P10 determined by the second function means, in this embodiment, the state of the response of the user P10 to others. Examples of the state of the user P10 determined by the second function are a state in which the user P10 is positive about conversation with others (hereinafter also referred to as a "standby state"), and a state in which the user P10 is in a state of and a state of being passive in conversation (hereinafter also referred to as "personal priority state"). For example, the individual priority state has multiple stages depending on the degree of passiveness in conversation with others (e.g., a state in which you cannot respond to someone speaking to you, a state in which you can have a conversation but do not want to be spoken to, etc.). good too. Further, examples of the state of the user P10 determined by the second function may include other states such as a state in which the user P10 is chatting (hereinafter also referred to as "chat state").

In the second function, the determination unit 32 makes determinations mainly using information indicated by operation signals, audio signals, and terminal signals. For example, when the determination unit 32 receives an operation signal from the push button corresponding to "positive state for conversation with others", it determines that the user P10 is in the standby state. For example, when the determination unit 32 receives an operation signal from the push button corresponding to "passive state of conversation with others", it determines that user P10 is in the individual priority state. For example, when the determination unit 32 receives a terminal signal indicating that the user P10 is holding a web conference using the terminal device 45, regardless of the information indicated by the operation signal, the determination unit 32 gives priority to the user P10. state. For example, the determination unit 32 does not receive a terminal signal indicating that the user P10 is holding a web conference, and based on the audio signal, the user P10 per unit time (or during conversation with the user P10) person) exceeds the threshold, it is determined that the user P10 is in a chat state. The threshold for the amount of speech may be set by the user P10 using the operation device 41, the terminal device 45, or the like, for example.

In the second function, the determination unit 32 may further use image signals and/or sensor signals to make determinations. For example, the determination unit 32 may determine whether the user P10 is in the standby state or in the individual priority state according to the degree of concentration of the user P10 on work. The degree of concentration of the user P10 on work can be estimated using, for example, the frequency of changes in the line of sight and/or posture of the user P10 in the image indicated by the image signal. Further, the determination unit 32 may determine that the user P10 is in the standby state when the seating time of the user P10 obtained based on the sensor signal from the seating sensor 440 is shorter than the threshold time. The threshold time may be set by the user P10 using the operation device 41, the terminal device 45, or the like, for example. That is, in the second function, the determination unit 32 may determine the state of the illumination target region R1 by using a combination of information indicated by the operation signal, the audio signal, the terminal signal, the image signal, and the sensor signal.

The determination unit 33 determines the color of the illumination light based on the state of the user P10 determined by the second function of the determination unit 32. For example, the determining unit 33 adjusts the color of the illumination light so that the color of the illumination light is different depending on whether it is determined to be the standby state, the individual priority state, or the chat state. Decide on a color. For example, when the determination unit 33 determines that the standby state is set, the determination unit 33 determines the color of the illumination light to be green. For example, when the individual priority state is determined, the determination unit 33 determines the color of the illumination light to be a blue-based color, for example, the color of grass. In the individual-priority state, it is estimated that the user P10 wants to concentrate on work. Therefore, as the illumination light in the individual-priority state, a blue-based color that has a high effect of increasing the arousal level of the user P10 is used. preferred. Among them, Tsuyukusa-iro, which was highly evaluated in the room-type light impression evaluation in the subject experiment, is particularly suitable. In the xy chromaticity diagram of the XYZ color system, the chromaticity point of grass color is (x, y)=(0.210, 0.221). For example, when it is determined that the state is a chat state, the determination unit 33 determines the color of the illumination light to be an orange-based color. As illumination light for chatting, it is a light color that is preferred by both men and women, and an orange-based color is suitable as a color that gives a warmer impression than a colored light impression. In the xy chromaticity diagram of the XYZ color system, the chromaticity point of orange is (x, y)=(0.529, 0.414). In this manner, the control device 3 controls the color of the illumination light of the lighting device 1 so as to present a sign indicating the state of the user P10 based on the state information regarding the state of the user P10. The control device 3 determines whether the user P10 is in a positive state (waiting state) for conversing with others or in a negative state (individual priority state) for conversing with others. The color of the illumination light of the illumination device 1 is controlled so as to present a sign.

The third function is to determine the work performed by the user P10 who is using the lighting target area R1. Examples of work performed by the user P10 determined by the third function are work involving viewing a paper medium (hereinafter also referred to as "paper-based work") and work involving viewing a computer system display (hereinafter referred to as "paper-based work"). , also referred to as “terminal-based work”), and Examples of work performed by user P10 determined by the third function may include other work, such as work involving both viewing paper media and viewing a computer system display.

In the third function, the judgment unit 32 makes judgments mainly using the information indicated by the image signal. For example, when the line of sight or face of the user P10 in the image indicated by the image signal faces the paper placed on the desk 220, the determination unit 32 determines that the user P10 is performing paper-based work. do. For example, when the line of sight or face of the user P10 in the image indicated by the image signal is directed toward the display of the terminal device 45, the determination unit 32 determines that the user P10 is performing terminal-based work.

The judgment unit 32 may make a judgment further using the operation signal and/or the terminal signal in the third function. For example, the determination unit 32 may determine that the user P10 is performing paper-based work when an operation signal is received from a push button corresponding to "work including viewing a paper medium". For example, the determination unit 32 may determine that the user P10 is performing terminal-based work when an operation signal is received from a push button corresponding to "work including viewing a display of a computer system." . For example, when the determination unit 32 receives from the terminal device 45 a terminal signal indicating that the user P10 is operating the terminal device 45, the determination unit 32 determines that the user P10 is performing terminal-based work. good. That is, in the third function, the determination unit 32 may use a combination of information indicated by the image signal, the operation signal, and the terminal signal to determine the work performed by the user P10.

The determination unit 33 determines the color of the illumination light based on the work performed by the user P10 determined by the third function of the determination unit 32 . For example, the determination unit 33 determines the color of the illumination light so that the color of the illumination light differs depending on whether the work performed by the user P10 is a paper-based task or a terminal-based task. For example, when the work performed by the user P10 is a paper-based work, the determining unit 33 selects The CIE 1997 Interim Color in the range of the correlated color temperature of 5400K or higher and 7000K or lower and the color deviation Duv in the range of -6 or higher and 8 or lower. The color of the illumination light is determined so that the chroma value obtained using the calculation method defined in the Appearance Model (Simple Version) has a light characteristic of 2.0 or less. For example, when the work performed by the user P10 is a terminal-based work, the determination unit 33 determines that the intrinsic photosensitive retina Ganglion cell ( _ipRGC ; intrinsic photosensitive retinal ganglion cell) stimulation amount of illumination light so that it has an optical characteristic of 0.6 or more in a value normalized by light emitted from a D65 light source (CIE standard light source D65) Decide on a color. In this way, the control device 3 controls the lighting device 1 so that the illumination target region R1 is illuminated with illumination light of a color suitable for the work performed by the user P10 based on the work information related to the work performed by the user P10. Controls the color of the illumination light. The control device 3 controls whether the work performed by the user P10 includes viewing a paper medium (paper-based work) or when viewing a display of a computer system (terminal-based work). The color of the illumination light from the illumination device 1 is controlled so that the colors of the illumination devices 1 are different.

The fourth function is to determine the seating time of the user P10 who is using the lighting target area R1. The sitting time means the time during which the user P10 sits on the chair 230 continuously. In the fourth function, the determination unit 32 determines whether or not the sitting time of the user P10 has exceeded the allowable time. The permissible time is the upper limit of time for which a person is allowed to continue sitting, and is set as appropriate. Allowable time can be selected from the group of, for example, 30 minutes, 1 hour, 2 hours, 4 hours. From the viewpoint of preventing the occurrence of acute pulmonary thromboembolism, the allowable time should preferably not exceed 4 hours. In addition, in the "Guidelines for Occupational Health Management in Information Equipment Work" (2019 edition) established by the Ministry of Health, Labor and Welfare of Japan, it is stipulated that the continuous work time should not exceed 1 hour. Therefore, it is preferable that the allowable time does not exceed 1 hour. The allowable time may be set by the user P10 using the operation device 41, the terminal device 45, or the like, for example.

In the fourth function, the determination unit 32 makes determinations mainly using information indicated by sensor signals. For example, when receiving a sensor signal indicating that a person is sitting on the chair 230 from the seating sensor 440, the determination unit 32 determines that the user P10 is sitting on the chair 230. FIG.

The determination unit 32 may further use the image signal to perform determination in the fourth function. For example, even when a sensor signal indicating that a person is sitting on the chair 230 is received from the seating sensor 440, the determining unit 32 determines whether the person is sitting on the chair 230 in the image indicated by the image signal. If not, it may be determined that no one sits on the chair 230 . That is, in the fourth function, the determination unit 32 may determine the seating time of the user P10 using a combination of information indicated by the sensor signal and the image signal.

The determination unit 33 determines the color of the illumination light based on the sitting time of the user P10 determined by the fourth function of the determination unit 32. For example, when it is determined that the sitting time of the user P10 has exceeded the allowable time, the determination unit 33 forcibly changes the color of the illumination light to a predetermined color. As a result, it is possible to alert the user P10 to the fact that the user has been sitting for a long time, and to prompt the user to change his or her posture. For example, when it is determined that the sitting time has exceeded the allowable time, the determination unit 33 determines the color of the illumination light to be a reddish color. In JIS Z 9101:2108 of the Japanese Industrial Standards, red-based colors are used as safety colors that signify prohibition, danger, fire prevention, etc. when used with a predetermined shape, and are suitable as light colors for warnings. be. In this manner, the control device 3 presents a sign prompting a change in posture when the sitting time exceeds a predetermined allowable time based on the sitting time information regarding the sitting time during which the user P10 is seated. It controls the color of illumination light from the illumination device 1 .

The fifth function is a function of determining the attributes of the user P10 who is using the illumination target area R1. Examples of the attributes of the user P10 may include the name of the user P10, the place of affiliation (the company where the user works, the assigned department within the company, etc.) and the like.

In the fifth function, the judgment unit 32 makes judgments mainly using information indicated by terminal signals and server signals. For example, when receiving a beacon signal from the terminal device 45, the determination unit 32 associates the identification information of the beacon signal with the location information of the terminal device 45 from which the beacon signal was sent. Further, based on the identification information of the beacon signal, the determination unit 32 transmits to the server 46 an inquiry signal for inquiring the attributes of the owner of the terminal device 45 that is the transmission source of the beacon signal. The determination unit 32 associates the attribute information of the user P10 indicated by the server signal returned from the server 46 in response to the inquiry signal with the position information of the terminal device 45 via the identification information of the beacon signal. Thereby, the determination unit 32 associates the lighting target region R1 where the user P10 holding the terminal device 45 is staying with the attribute information of the user P10. The determination unit 32 acquires the attribute information of the user P10 for each of the plurality of illumination target regions R1 corresponding to the plurality of lighting devices 1 .

In the fifth function, the determination unit 32 may further use the operation signal and/or the image information to make a determination. For example, upon receiving an operation signal indicating attribute information from the operation device 41, the determination unit 32 may determine the attribute of the user P10 based on the attribute information indicated by the operation signal. For example, the determination unit 32 recognizes the face of the user P10 in the image indicated by the image signal using a technique such as face recognition, and based on a data table or the like, corresponds to information on the recognized face of the user P10. You may specify the attribute information to be used. Note that, when receiving a terminal signal indicating attribute information from the terminal device 45, the determination unit 32 may determine the attribute of the user P10 based on the attribute information indicated by the terminal signal. That is, in the fifth function, the determination unit 32 may determine the attributes of the user P10 by using a combination of information indicated by the terminal signal, the server signal, the operation signal, and the image signal.

The determination unit 33 determines the color of the illumination light based on the attribute of the user P10 determined by the fifth function of the determination unit 32. For example, the determination unit 33 controls the color of the illumination light so that the color is set in advance for each organization to which the user P10 belongs. As shown in FIG. 2, when there are a plurality of illumination target regions R1 in the target space 201, if the color of the illumination light of each of the plurality of lighting devices 1 is set according to the place to which the user P10 belongs, each illumination It becomes easy to grasp the affiliation of the user P10 in the target area R1. In addition, when a plurality of users P10 are using a plurality of illumination target regions R1, it is assumed that there is a desire to search for which illumination target region R1 a specific user P10 is staying. . In such a case, when the determination unit 33 receives a signal (user designation information) designating an attribute of a specific user P10 (search target user P10) from an external device, the search target user P10 is Based on the identification information of the beacon signal of the terminal device 45 held, the illumination target area R1 where the search target user P10 stays is specified, and the color of the illumination light of the illumination device 1 in this illumination target area R1 is determined by the surrounding illumination. The color is determined so as to be different from the color of the illumination light of the device 1 . For example, the determination unit 33 may determine the color of the illumination light so that the color of the illumination light alternates between the current color and another color. The control unit 34 controls the lighting device 1 based on the color determined by the determination unit 33 . This makes it possible to grasp the illumination target region R1 in which the search target user P10 is located. In this way, the control device 3 controls the color of the illumination light from the illumination device 1 based on the attribute information regarding the attributes of the user P10. When the control device 3 receives the user designation information designating the attribute of the user P10 indicated by the attribute information, the control device 3 presents a sign indicating that the user P10 is using the lighting target region R1. It controls the color of illumination light from the illumination device 1 .

The sixth function is to determine the schedule of the user P10 who is using the lighting target area R1. The user P10's schedule determined by the sixth function may include the scheduled start time of the task that the user P10 should perform next.

In the sixth function, the determination unit 32 makes determinations mainly using information indicated by terminal signals. For example, when receiving a terminal signal indicating schedule information, the determination unit 32 determines the scheduled start time of the task to be performed next by the user P10 based on the schedule information indicated by the terminal signal.

The judging section 32 may make a judgment further using the operation signal in the sixth function. For example, upon receiving an operation signal indicating schedule information, the determination unit 32 may determine the scheduled start time of the task to be performed next by the user P10 based on the schedule information indicated by the operation signal. That is, in the sixth function, the determination unit 32 may determine the schedule of the user P10 using a combination of information indicated by the operation signal and the terminal signal.

The determination unit 33 determines the color of the illumination light based on the schedule of the user P10 determined by the sixth function of the determination unit 32. For example, the determining unit 33 determines the color of the illumination light so that the color of the illumination light alternates between the current color and another color when the scheduled start time of the next task for the user P10 approaches. The control unit 34 controls the lighting device 1 based on the color determined by the unit 33 . This makes it possible to notify the user P10 that the scheduled start time of the task is approaching. In this way, based on the schedule information about the schedule of the user P10, the control device 3 determines when the current time is the scheduled start time of the task included in the schedule or a time earlier than the scheduled start time by a predetermined time. , controls the color of the illumination light of the illumination device 1 so as to present a sign calling attention to the start of the task.

When the place where the user P10 should perform the next task is a predetermined room in the facility 200, the control device 3 presents a plurality of signs to guide the user P10 to the predetermined room. The lighting device 1 may be controlled. For example, the control device 3 may indicate a sign indicating the direction to guide the user P10 by gradation of color illumination light. For the gradation of color illumination light, for example, among the four illumination devices 1 for indicating the gradation of color illumination light, the color gradation of the color illumination light of the illumination device 1 serving as the starting point is the lowest, and the illumination serving as the end point. The gradation is such that the color gradation of the color illumination light of the device 1 is the highest, and the color gradation of the color illumination light gradually increases as the distance from the illumination device 1 at the starting point approaches the illumination device 1 at the end point. . Alternatively, the control device 3 may sequentially change the lighting device 1 that outputs color illumination light among the plurality of lighting devices 1 along the direction in which the user P10 is guided.

The seventh function is a function of judging the emotion of the user P10 who is using the lighting target area R1. The emotions of the user P10 determined by the seventh function may be, for example, emotions, or may be emotions classified according to the so-called Russell's annulus model in which the degree of arousal and the degree of comfort are indices.

The judging section 32 makes a judgment mainly using the information indicated by the image signal in the seventh function. For example, the determination unit 32 can determine the emotion of the user P10 by obtaining the feature amount of the user P10 by performing image processing on the image indicated by the image signal. The determination unit 32 may determine the emotion of the user P10, for example, using a trained model that receives information on a person's facial expression and outputs information on a person's emotion.

The judging unit 32 may make a judgment further using an audio signal in the seventh function. For example, the determination unit 32 may determine the emotion of the user P10 based on the tone of voice of the user P10 indicated by the audio signal. That is, in the seventh function, the determination unit 32 may determine the emotion of the user P10 by using a combination of information indicated by the image signal and the audio signal.

The determination unit 33 determines the color of the illumination light based on the emotion of the user P10 determined by the seventh function of the determination unit 32. For example, when the user P10 is in an "irritated" state, the determination unit 33 determines the color of the illumination light so as to calm the user P10. For example, when the user P10 is in a state of low arousal, the determination unit 33 changes the color of the illumination light alternately between the current color and another color so as to increase the user P10's arousal. The color of the illumination light is determined, and the control section 34 controls the illumination device 1 based on the color determined by the determination section 33 . In this way, the control device 3 controls the color of the illumination light of the lighting device 1 so that the predetermined wavelength component corresponding to the emotion of the user P10 increases or decreases based on the emotion information about the emotion of the user P10. do.

The determination unit 32 may have all the functions of the first function to the seventh function, or may have only a part of the functions of the first function to the seventh function. The determination unit 32 preferably has at least the second function. Further, the judgment section 32 may have a function of making judgments other than the first to seventh functions. The determination unit 33 does not necessarily have to determine the color of the illumination light based on all determination results of the first function to the seventh function. Further, when the determination results of the first function to the seventh function interfere with each other, the determination unit 33 may determine which function's determination result should be prioritized according to, for example, a preset priority order.

As described above, according to the illumination system 10 of the present embodiment, it is possible to provide illumination light suitable for the individual who uses the illumination target region R1.

(3) Control Method and Program The control method according to the present embodiment is a control method for controlling the lighting device 1 that is arranged in the facility 200 and illuminates the lighting target region R1 for personal use within the facility 200 . The control method controls the color of the illumination light of the illumination device 1 based on the user information regarding the user P10 who is using the illumination target region R1.

Specifically, as shown in FIG. 6, the control device 3 (acquisition unit 31) acquires information about the illumination target region R1 from the acquisition system 4 (ST1). Based on the acquired information, the control device 3 (judgment unit 32) judges the illumination target region R1 or the user P10 who is using the illumination target region R1 (ST2). The control device 3 (determination unit 33) determines the color of the illumination light of the lighting device 1 based on the determination result (ST3). The control device 3 (control section 34) controls the lighting device 1 according to the determined color (ST4).

A program according to an embodiment of the present disclosure is a program for causing a computer system (control device 3) to execute the control method described above. The program may be recorded on a non-temporary recording medium and provided.

(4) Modifications Modifications of the above embodiment will be listed below. Modifications described below can be applied in combination as appropriate.

(4.1) Modification 1
In this modification, as shown in FIG. 7, 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, and a second wavelength conversion section. 122, a visible light LED 13 (hereinafter also referred to as first visible light LED 13), and a visible light LED 14 (hereinafter also referred to as 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.

(4.2) Modification 2
In this modification, as shown in FIG. 8, 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, and a first wavelength converter 141. , a second 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.

(4.3) Modification 3
In this modification, 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, and a first wavelength converter 121, as shown in FIG. , a second 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.

(4.4) Modification 4
In this modification, as shown in FIG. 10, the light sources 11 provided in each of the plurality of lighting devices 1 include a first blue LED 111, a second blue LED 112, a third blue LED 113, a fourth blue LED 114, and a third blue LED 114. It has a first wavelength conversion section 121 , a second wavelength conversion section 122 , a third wavelength conversion section 123 and a fourth wavelength conversion section 124 .

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.

(4.5) Modification 5
In this modification, as shown in FIG. 11, 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, and a first wavelength converter 121. , a second wavelength conversion section 122 , a third wavelength conversion section 123 , and a visible light LED 16 .

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. do. 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.

(4.6) Modification 6
The illumination system 10 according to Modification 6 will be described below with reference to FIGS. 12 and 13. FIG. Regarding the illumination system 10 according to this modified example, the same components as those of the illumination system 10 according to the above-described embodiment are denoted by the same reference numerals, and descriptions thereof are omitted.

As shown in FIGS. 12 and 13 , the lighting system 10 of this modification includes a plurality of second lighting devices arranged in a facility 200 separately from a plurality of first lighting devices 1 which are a plurality of lighting devices 1 . A lighting device 2 is further provided.

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 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 .

As shown in FIG. 13, in the lighting system 10 of this modified example, the second lighting device 2 is arranged so as to be 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 lighting system 10 of this modified example, 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 of this modified example, the lighting area of the first lighting device 1 is narrower than the lighting area of the second lighting device 2 . In FIG. 12, illumination target regions R1 of each of the plurality of first lighting devices 1 are schematically shown as regions surrounded by dashed-dotted lines.

The illumination system 10 of this modified example can use the illumination light of the plurality of second illumination devices 2 as main illumination.

In the lighting system 10 of this modified example, the control device 3 controls the color of the illumination light of the first lighting device 1 based on the user information regarding the user P10 (see FIG. 3) who is using the illumination target region R1. do. On the other hand, for the second lighting device 2, the color of the illumination light is controlled to be white. This makes it possible to provide illumination light suitable for the user P10 for each illumination target region R1 while maintaining the color of the main illumination light in the target space 201 white.

In the lighting system 10 of this modified example, the plurality of second lighting devices 2 may be capable of adjusting the correlated color temperature of the illumination light. Also, the plurality of second lighting devices 2 may be controlled by a device other than the control device 3 .

(4.7) Modification 7
The illumination system 10 according to Modification 7 will be described below with reference to FIG. 13 . Regarding the illumination system 10 according to this modified example, the same components as those of the illumination system 10 according to the above-described embodiment are denoted by the same reference numerals, and descriptions thereof are omitted.

In the lighting system 10 of this modified example, the control device 3 determines the color of the illumination light of the lighting device 1 using the learned model M1 generated by machine learning.

The trained model M1 is generated by machine learning. Here, the machine learning algorithm is, for example, a neural network. However, machine learning algorithms are not limited to neural networks, such as XGB (eXtreme Gradient Boosting) regression, Random Forest, decision tree, Logistic Regression, support vector machines ( SVM: Support vector machine), Naive Bayes classifier, k-nearest neighbors, or the like. Furthermore, the machine learning algorithm may be, for example, Gaussian Mixture Model (GMM), k-means clustering, or the like. Also, the learning method is, for example, supervised learning. However, the learning method is not limited to supervised learning, and may be unsupervised learning or reinforcement learning.

Also, the learned model M1 may be updated by performing additional learning. That is, learned model M1 may be updated after lighting system 10 is applied to facility 200 . For example, the control device 3 has a learning device, and the learning device periodically or irregularly updates the trained model M1. As a result, the learned model M1 is sequentially re-learned (updated) at the applied facility 200 (on-site). Whether or not to update the trained model M1 may be selectable using a user interface (input device) provided in the control device 3, for example.

The learned model M1 realizes the function of the determination unit 32 of the control device 3, for example. The learned model M1 can implement the second function of the determination unit 32 of the control device 3, for example. The learned model M1 is machine-learned using, for example, information on the movement of a person that can occur within the illumination target region R1 and information on the state of the person as learning data. For example, based on the operation signal, audio signal, sensor signal, image signal, and terminal signal received from the acquisition system 4, the control device 3 obtains motion information indicating the motion of the user P10 who is using the illumination target region R1. get. Then, the control device 3 inputs the acquired motion information to the learned model M1, and estimates the state of the user P10 based on the output result output from the learned model M1. The control device 3 determines the color of the illumination light from the illumination device 1 based on the estimation result (estimated state of the user P10), and controls the color of the illumination light from the illumination device 1 based on the determined color. do.

In the illumination system 10 of this modified example, the sensor device 44 of the acquisition system 4 is not limited to the seating sensor 440, but any sensor that can acquire information that can indicate the movement of the user P10 who is using the illumination target area R1. For example, a speed sensor, an acceleration sensor, a gyro sensor, a human sensor, an infrared sensor, etc. may be included.

Also, the control device 3 may have a function of processing an image captured by the imaging device 43 and/or the camera of the terminal device 45 to obtain motion information indicating the motion of the user P10.

The learned model M1 may be machine-learned so as to realize any one of the functions other than the second function of the determination unit 32 (the first function, the third function to the seventh function). Machine learning may be performed so as to implement two or more of the 32 first to seventh functions.

The learned model M1 may further implement at least part of the function of the determination unit 33. For example, the trained model M1 receives an operation signal, an audio signal, a sensor signal, an image signal, and a terminal signal received from the acquisition system 4, and outputs information indicating the color of the illumination light of the lighting device 1 as an output result. good too. That is, the output result output by the trained model M1 is not limited to information indicating the state of the user P10, and may be information indicating the color of the illumination light of the lighting device 1. FIG.

(4.8) Other Modifications The lighting system 10 according to the present disclosure includes a computer system in the control device 3 and the like. A computer system is mainly composed of a processor and a memory as hardware. The function of the control device 3 in the present disclosure 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). The integrated circuit such as IC or LSI referred to here is called differently depending on the degree of integration, and includes integrated circuits called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). Furthermore, an FPGA (Field-Programmable Gate Array), which is programmed after the LSI is manufactured, or a logic device capable of reconfiguring the bonding relationship inside the LSI or reconfiguring the circuit partitions inside the LSI, shall also be adopted as the processor. 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.

Also, it is not an essential configuration that a plurality of functions of the control device 3 are integrated in one housing. For example, the components of the control device 3 may be distributed over a plurality of housings. Furthermore, at least part of the functions of the control device 3, for example, the functions of the determination unit 32 and the determination unit 33 of the control device 3 may be realized by the cloud (cloud computing) or the like.

A plurality of functions of the control device 3 may be integrated into one housing as in the above embodiment.

In a modified example, the lighting device 1 is not limited to the lighting device arranged on the ceiling 202 in the facility 200, and may be a lighting device arranged on the wall surface or the floor surface 203, for example.

In one modification, the lighting device 1 may be 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. .

In a modified example, the lighting device 1 may be a lighting device configured to determine the direction of illumination light with a light source and a light guide plate.

In one modification, the lighting system 10 may have only one lighting device 1 .

(5) Aspects The following aspects are disclosed from the above-described embodiments, modifications, and the like.

The lighting system (10) of the first aspect comprises a lighting device (1) and a control device (3). A lighting device (1) is placed in a facility (200) and illuminates a personal lighting target area (R1) in the facility (200). A control device (3) controls the lighting device (1). A control device (3) controls the color of the illumination light of the illumination device (1) based on the user information about the user (P10) who is using the illumination target area (R1).

According to this aspect, it is possible to provide illumination light suitable for the individual (user P10) who uses the illumination target area (R1).

In the lighting system (10) of the second aspect, in the first aspect, the user information includes state information regarding the state of the user (P10). Based on the state information, the control device (3) controls the color of the illumination light of the lighting device (1) so as to present a sign indicating the state of the user (P10).

According to this aspect, it is possible to provide illumination light according to the condition of the individual who uses the illumination target area (R1).

In the lighting system (10) of the third aspect, in the second aspect, the control device (3) controls the state of the user (P10) to be positive about conversation with others and the state of conversation with others. The color of the illumination light of the illumination device (1) is controlled so as to present different signs depending on whether the conversation is in a passive state or not.

According to this aspect, it is possible to let the surrounding people know whether or not they can talk to the user (P10).

In the lighting system (10) of the fourth aspect, in any one of the first to third aspects, the user information includes work information related to work performed by the user (P10). Based on the work information, the control device (3) controls the illumination light of the illumination device (1) so as to illuminate the illumination target region (R1) with illumination light of a color suitable for the work performed by the user (P10). Control colors.

According to this aspect, it is possible to provide illumination light according to the work performed by the individual using the illumination target area (R1).

In the lighting system (10) of the fifth aspect, in the fourth aspect, the control device (3) controls the display of the computer system when the work performed by the user (P10) includes viewing a paper medium. The color of the illumination light of the illumination device (1) is controlled so that the color of the illumination light differs between the case of work including viewing.

According to this aspect, it is possible to provide illumination light of a color suitable for the content of the work performed by the individual using the illumination target area (R1).

In the lighting system (10) of the sixth aspect, in any one of the first to fifth aspects, the user information includes sitting time information regarding the sitting time of the user (P10). A control device (3) controls the color of the illumination light of the lighting device (1) based on the sitting time information so as to present a sign prompting a change of posture when the sitting time exceeds a predetermined permissible time. .

According to this aspect, it is possible to prompt the individual who uses the illumination target area (R1) to change their posture when the sitting time exceeds the allowable time.

In the illumination system (10) of the seventh aspect, in any one of the first to sixth aspects, the user information includes attribute information regarding attributes of the user (P10). A control device (3) controls the color of illumination light from the illumination device (1) based on the attribute information.

According to this aspect, it is possible to provide illumination light according to the attributes of the individual who uses the illumination target area (R1).

In the lighting system (10) of the eighth aspect, in the seventh aspect, when the control device (3) receives user designation information designating the attribute of the user (P10) indicated by the attribute information, The color of illumination light of an illumination device (1) is controlled so as to present a sign indicating that a user (P10) is using an illumination target area (R1).

According to this aspect, it is possible to identify the user (P10) who is using the illumination target area (R1).

In the lighting system (10) of the ninth aspect, in any one of the first to eighth aspects, the user information includes schedule information regarding the schedule of the user (P10). Based on the schedule information, the control device (3) calls attention to the start of the task when the current time is the scheduled start time of the task included in the schedule or a time earlier than the scheduled start time by a predetermined time. The color of the illumination light of the illumination device (1) is controlled so as to present a sign to do so.

According to this aspect, it is possible to provide illumination light according to the schedule of the individual who uses the illumination target area (R1).

In the lighting system (10) of the tenth aspect, in any one of the first to ninth aspects, the user information includes emotion information regarding the user's (P10) emotion. The control device (3) controls the color of the illumination light of the illumination device (1) based on the emotion information so that the predetermined wavelength component corresponding to the emotion of the user (P10) increases or decreases.

According to this aspect, it is possible to provide illumination light according to the emotions of the individual who uses the illumination target area (R1).

In the lighting system (10) of the eleventh aspect, in any one of the first to tenth aspects, the illumination target region (R1) is used by any individual. The control device (3) adjusts the color of the illumination light of the illumination device (1) so as to present a sign indicating that the illumination target area (R1) is free space when the illumination target area (R1) is not in use. to control.

According to this aspect, it is possible to notify that the illumination target area (R1) is a free space by the color of the illumination light.

The lighting system (10) of the twelfth aspect includes a plurality of lighting devices (1) in any one of the first to eleventh aspects. A plurality of lighting devices (1) respectively correspond to a plurality of different illumination target areas (R1) within a facility (200). Each of the plurality of lighting devices (1) illuminates a corresponding illumination target region (R1). A control device (3) determines the color of illumination light from each of a plurality of lighting devices (1) based on user information about a user (P10) who is using an illumination target region (R1) corresponding to this lighting device. to control.

According to this aspect, it is possible to provide illumination light corresponding to the individual who uses the illumination target regions (R1) for the plurality of illumination target regions (R1).

In the lighting system (10) of the thirteenth aspect, in any one of the first to twelfth aspects, the lighting device (1) comprises a light source (11). The light source (11) includes a blue LED (11B) that emits blue light, a green LED (11G) that emits green light, a red LED (11R) that emits red light, and a white LED (11R) that emits white light. 11W) and

According to this aspect, the degree of freedom of the color of the illumination light is increased.

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

According to this aspect, compared to the thirteenth aspect, it is possible to improve the color rendering of the illumination light of the illumination device (1) when the illumination device (1) is used for main illumination.

In the lighting system (10) of the fifteenth aspect, in any one of the first to twelfth aspects, the lighting device (1) comprises a light source (11). The light source (11) comprises a first violet LED (131), a second violet LED (132), a third violet LED (133), a first wavelength converter (141) and a second wavelength converter (142). ) and a third wavelength converter (143). A first violet LED (131) emits a first violet light. A second violet LED (132) emits a second violet light. A third violet LED (133) emits third violet light. The first wavelength conversion part (141) includes blue phosphor particles that are excited by the first violet light to emit blue light. The second wavelength conversion part (142) includes green phosphor particles that are excited by the second violet light to emit green light. The third wavelength conversion part (143) includes red phosphor particles that are excited by the third violet light to emit red light.

In the illumination system (10) according to the sixteenth aspect, in any one of the first to twelfth aspects, the illumination device (1) includes the light source (11). The light source (11) includes a first blue LED (111), a second blue LED (112), a third blue LED (113), a first wavelength conversion section (121), and a second wavelength conversion section (122). ) and a third wavelength converter (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) according to the seventeenth aspect, in any one of the first to twelfth 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), a third wavelength converter (123), a third a light source (11) having a four-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 lighting system (10) according to the eighteenth aspect, in any one of the first to twelfth aspects, the lighting device (1) includes a first blue LED (111) and a second blue LED (112). , a third blue LED (113), a first wavelength conversion section (121), a second wavelength conversion section (122), a third wavelength conversion section (123), and a visible light LED (16). A light source (11) is provided. 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. The visible light LED (16) emits a visible light 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. emit light.

The control method of the 19th aspect is a control method for controlling the lighting device (1) that is arranged in the facility (200) and illuminates the lighting target area (R1) for personal use in the facility (200). The control method includes controlling the color of the illumination light of the illumination device (1) based on user information about the user (P10) who is using the illumination target area (R1).

According to this aspect, it is possible to provide illumination light suitable for the individual who uses the illumination target area (R1).

The user information preferably includes state information regarding the state of the user (P10). Controlling the color of the illumination light of the lighting device (1) controls the color of the illumination light of the lighting device (1) to present a sign indicating the state of the user (P10) based on the state information. preferably includes:

A program of the twentieth aspect is a program for causing a computer system to execute the control method of the nineteenth aspect.

The lighting system (10) of the twenty-first aspect comprises a lighting device (1) and a control device (3). A lighting device (1) is placed in a facility (200) and illuminates a personal lighting target area (R1) in the facility (200). A control device (3) controls the lighting device (1). The control device (3) acquires motion information indicating the motion of the user (P10) who is using the lighting target region (R1). The control device (3) inputs the acquired motion information to the learned model (M1) and estimates the state of the user (P10) based on the output result output from the learned model (M1). The learned model (M1) is machine-learned using information on human movements that can occur in the illumination target region (R1) and information on the state of the person as data for learning. A control device (3) controls the color of illumination light from the illumination device (1) based on the estimation result.

The control method of the twenty-second aspect is a control method for controlling the lighting device (1) that is arranged in the facility (200) and illuminates the lighting target area (R1) for personal use in the facility (200). The control method includes obtaining, by the control device (3), motion information indicating motion of the user (P10) who is using the illumination target area (R1). In the control method, the state of the user (P10) is determined based on the output result output from the learned model (M1) by inputting the acquired motion information to the learned model (M1) by the control device (3). Including estimating. The learned model (M1) is machine-learned using information on human movements that can occur in the illumination target region (R1) and information on the state of the person as data for learning. The control method includes controlling the color of the illumination light of the illumination device (1) by the control device (3) based on the estimation result.

A program of the twenty-third aspect is a program for causing a computer system to execute the control method of the twenty-second aspect.

The lighting system (10) of the twenty-fourth aspect comprises a lighting device (1) and a control device (3). A lighting device (1) is placed in a facility (200) and illuminates a personal lighting target area (R1) in the facility (200). The illuminated target area (R1) is utilized by any individual. A control device (3) controls the lighting device (1). The control device (3) adjusts the color of the illumination light of the illumination device (1) so as to present a sign indicating that the illumination target area (R1) is free space when the illumination target area (R1) is not in use. to control.

In the lighting system (10) according to the twenty-fifth aspect, in any one of the first to twelfth 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 emits blue light, includes 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 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 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, and have an intermediate color from bluish green to white. 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
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 yellow to white. a yellow light source comprising a wavelength converting portion that emits
Intermediate color light from orange 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. an orange light source comprising a wavelength converting portion that emits
Intermediate color light from red 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 red light source comprising a wavelength converting portion that emits
It has at least three or more of

10 lighting system 1 lighting device 11 light source 11R red LED
11G green LED
11B Blue LED
11W white LED
111 first blue LED
112 second blue LED
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 13 visible light LED
14 visible light LEDs
15 visible light LEDs
16 visible light LEDs
3 Control device 200 Facility P10 User R1 Lighting target area M1 Learned model

Claims

A lighting device that is arranged in a facility and illuminates a lighting target area for personal use in the facility;
a control device that controls the lighting device;
with
The control device controls the color of illumination light from the illumination device based on user information about a user who is using the illumination target area,
The user information includes state information about the state of the user,
Based on the state information, the control device controls the color of illumination light of the lighting device so as to present a sign indicating the state of the user.
lighting system.
The control device controls the illumination device so as to present different signs depending on whether the user is in a positive state of conversing with others or in a negative state of conversing with others. control the color of the illumination light,
10. The lighting system of claim 1.
The user information further includes work information related to work performed by the user,
The control device controls the color of the illumination light of the illumination device so as to illuminate the illumination target area with illumination light of a color suitable for the work performed by the user, based on the work information.
3. A lighting system according to claim 1 or 2.
The control device controls the illumination so that the color of the illumination light differs depending on whether the work performed by the user includes viewing a paper medium or the display of a computer system. to control the color of the illumination light of the device,
4. A lighting system according to claim 3.
The user information further includes sitting time information regarding the sitting time during which the user is seated,
Based on the sitting time information, the control device controls the color of the illumination light of the lighting device so as to present a sign prompting a change in posture when the sitting time exceeds a predetermined allowable time.
Illumination system according to any one of claims 1-4.
The user information further includes attribute information about attributes of the user,
The control device controls the color of illumination light from the lighting device based on the attribute information.
Illumination system according to any one of the preceding claims.
The control device presents a sign indicating that the user is using the lighting target area when receiving user designation information designating the attribute of the user indicated by the attribute information. controlling the color of the illumination light of the lighting device to
7. A lighting system according to claim 6.
The user information further includes schedule information regarding the user's schedule,
Based on the schedule information, when the current time is the scheduled start time of a task included in the schedule or a time earlier than the scheduled start time by a predetermined time, the control device warns attention to the start of the task. controlling the color of the illumination light of the lighting device to present an evocative sign;
Illumination system according to any one of the preceding claims.
the user information further includes emotion information about the user's emotion;
Based on the emotion information, the control device controls the color of the illumination light of the lighting device so that a predetermined wavelength component corresponding to the user's emotion increases or decreases.
Illumination system according to any one of the preceding claims.
The illumination target area is utilized by any individual,
The control device controls the color of illumination light of the illumination device to present a sign indicating that the illumination target area is free space when the illumination target area is not in use.
Illumination system according to any one of the preceding claims.
comprising a plurality of the lighting devices,
each of the plurality of lighting devices corresponds to a plurality of different lighting target areas in the facility and illuminates the corresponding lighting target areas;
The control device controls the color of the illumination light of each of the plurality of lighting devices based on user information about a user who is using the illumination target area corresponding to the lighting device.
Illumination system according to any one of the preceding claims.
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.
The lighting devices are
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 light source having a visible light LED that emits visible light of a color different from the first blue light, the second blue light, and white;
Illumination system according to any one of the preceding claims.
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.
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.
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.
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;
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; a light source having a visible light emitting LED;
Illumination system according to any one of the preceding claims.
A control method for controlling a lighting device that is arranged in a facility and illuminates a lighting target area for personal use in the facility, comprising:
Based on user information about a user who is using the illumination target area, controlling the color of the illumination light of the illumination device;
The user information includes state information about the state of the user,
Controlling the color of illumination light of the illumination device includes controlling the color of illumination light of the illumination device to present a sign indicating the state of the user based on the state information;
control method.
A program for causing a computer system to execute the control method of claim 18.
A lighting device that is arranged in a facility and illuminates a lighting target area for personal use in the facility;
a control device that controls the lighting device;
with
The control device is
Acquiring motion information indicating the motion of the user who is using the illumination target area;
Inputting the acquired movement information into a trained model machine-learned using information on the movement of a person that can occur within the lighting target area and information on the state of the person as learning data, and outputting the information from the trained model. estimating the state of the user based on the output result,
controlling the color of the illumination light of the lighting device based on the estimation result;
lighting system.
A control method for controlling a lighting device that is arranged in a facility and illuminates a lighting target area for personal use in the facility, comprising:
by the controller,
Acquiring motion information indicating a motion of a user while using the illumination target area;
Inputting the acquired movement information into a trained model machine-learned using information on the movement of a person that can occur within the lighting target area and information on the state of the person as learning data, and outputting the information from the trained model. estimating the state of the user based on the output result obtained;
controlling the color of the illumination light of the illumination device based on the estimation result;
including,
control method.
A program for causing a computer system to execute the control method of claim 21.