Lighting control system, lighting device, and lighting control method

Abstract

A lighting control system (2) comprises an acquisition unit (221), a determination unit (222), and a control unit (223). The acquisition unit (221) acquires object information about an object. The determination unit (222) determines a light emission pattern on the basis of the object information acquired by the acquisition unit (221). The control unit (223) controls a light source (12) that has a plurality of light-emitting elements (121) that are arranged in an array. The control unit (223) individually controls the plurality of light-emitting elements (121) and thereby causes the light emission pattern determined by the determination unit (222) to be irradiated from the light source (12).

Description

Lighting control system, lighting device, and lighting control method

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

[0002] Patent Document 1 discloses an illumination control device that coats an illuminated object of any shape with illumination light.

[0003] JP 2010-015996 A

[0004] An object of the present invention is to provide a lighting control system or the like that can easily irradiate an object with a light emission pattern that corresponds to the situation in which the object is placed.

[0005] A lighting control system according to one aspect of the present invention includes an acquisition unit, a determination unit, and a control unit. The acquisition unit acquires object information relating to an object. The determination unit determines a light emission pattern based on the object information acquired by the acquisition unit. The control unit controls a light source having a plurality of light-emitting elements arranged in an array. The control unit individually controls the plurality of light-emitting elements to cause the light source to emit the light emission pattern determined by the determination unit.

[0006] A lighting device according to one aspect of the present invention includes the lighting control system, the light source, and a housing that houses the lighting control system and the light source.

[0007] In addition, a lighting control method according to one aspect of the present invention acquires object information related to an object. The lighting control method determines a light emission pattern based on the acquired object information. The lighting control method controls a light source having a plurality of light-emitting elements arranged in an array. In the process of controlling the light source, the plurality of light-emitting elements are individually controlled to cause the light source to emit the determined light emission pattern.

[0008] According to the present invention, there is an advantage that it is easy to irradiate an object with a light emission pattern that corresponds to the situation in which the object is placed.

[0009] Fig. 1 is a schematic perspective view of a lighting device according to an embodiment. Fig. 2 is a schematic cross-sectional view of a first housing of the lighting device according to an embodiment. Fig. 3 is a block diagram showing the configuration of a lighting device equipped with a lighting control system according to an embodiment. Fig. 4 is a schematic diagram showing an example of irradiation of a light emission pattern by the lighting control system according to an embodiment. Fig. 5 is a flowchart showing an example of operation of the lighting control system according to an embodiment.

[0010] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that each of the embodiments described below represents a specific example of the present invention. Therefore, the numerical values, shapes, materials, components, component arrangements and connection forms, steps, step sequences, etc. shown in the following embodiments are merely examples and are not intended to limit the present invention. Therefore, among the components in the following embodiments, components not recited in the independent claims will be described as optional components.

[0011] Furthermore, each figure is a schematic diagram and is not necessarily an exact illustration. Therefore, for example, the scales and the like do not necessarily match in each figure. Furthermore, in each figure, substantially the same configurations are assigned the same reference numerals, and duplicate explanations are omitted or simplified.

[0012] Furthermore, in this specification, terms indicating the relationship between elements, terms indicating the shape of elements, and numerical ranges are not expressions that only express a strict meaning, but are expressions that also include a substantially equivalent range, for example, a difference of about a few percent.

[0013] (Embodiment) [Lighting Device] First, the configuration of a lighting device according to an embodiment will be described with reference to Figs. 1 to 3. Fig. 1 is a schematic perspective view of a lighting device 10 according to an embodiment. Fig. 2 is a schematic cross-sectional view of a first housing 111 (described later) of the lighting device 10 according to the embodiment. Fig. 3 is a block diagram showing the configuration of the lighting device 10 equipped with a lighting control system 2 according to an embodiment.

[0014] 1 to 3, lighting device 10 is configured by housing a light source 12, a drive unit 13, a heat sink 14, a lens barrel 15, and a lighting control system 2 in a housing 11. In the embodiment, housing 11 has a cylindrical first housing 111 that houses light source 12 and drive unit 13, and a rectangular parallelepiped second housing 112 that houses lighting control system 2. Note that housing 11 may also be configured as a single housing.

[0015] The lighting device 10 is, for example, a spotlight, and is attached to a wiring fixture (for example, a wiring duct or a ceiling hook) provided on a ceiling or a wall. Note that the lighting device 10 is not limited to a spotlight, and may be, for example, a downlight or a ceiling light.

[0016] The light source 12 is a light source that emits, for example, white light. The light source 12 has a plurality of light-emitting elements 121 (see FIG. 3 ) arranged in a two-dimensional matrix (in other words, arranged side by side in an array). The plurality of light-emitting elements 121 are regularly arranged side by side in a matrix of M rows and N columns. Here, at least one of M and N is a natural number of 2 or more. M may be equal to N, or M may not be equal to N. The arrangement intervals of the light-emitting elements 121 in the row direction and the column direction may be the same or different. In the embodiment, the outer shape of the area in which the plurality of light-emitting elements 121 are arranged is rectangular, but it may be another shape, for example, circular.

[0017] Each light-emitting element 121 includes, for example, a blue light-emitting element and a yellow phosphor. In each light-emitting element 121, the yellow phosphor is disposed on the light-emitting side (front) of the blue light-emitting element. The blue light-emitting element is, for example, an LED (Light Emitting Diode). More specifically, the blue light-emitting element is, for example, a minute LED measuring, for example, 100 μm×100 μm or less. The yellow phosphor is a phosphor that emits yellow light when excited by blue light. Each light-emitting element 121 emits white light as a mixture of blue light and yellow light. The yellow phosphor is, for example, a YAG (yttrium aluminum garnet) phosphor, but is not limited to this.

[0018] The yellow phosphor may be provided so as to cover the plurality of blue light-emitting elements. For example, a yellow phosphor may be disposed so as to entirely cover the plurality of blue light-emitting elements arranged in a two-dimensional matrix.

[0019] The driving unit 13 drives the light source 12. Specifically, the driving unit 13 drives each of the plurality of light-emitting elements 121 independently (i.e., individually) according to control information received from a control unit 223 of the lighting control system 2 (described later). This allows the on / off, light-emitting intensity, light-emitting time, and other parameters of each of the plurality of light-emitting elements 121 to be individually controlled. For example, by individually controlling the on / off of the plurality of light-emitting elements 121, it is possible to emit illumination light with varying brightness in each region. Then, by irradiating the illumination light onto, for example, a wall surface, an illumination pattern B1 (see FIG. 4 ) corresponding to the brightness can be formed on the wall surface. The illumination pattern B1 may be a pattern representing a still image (i.e., a constant illumination pattern B1 regardless of the passage of time) or a pattern representing a moving image (i.e., an illumination pattern B1 that changes over time).

[0020] As described above, in the embodiment, the driving unit 13 drives each of the plurality of light-emitting elements 121 independently of one another, so there is no need to provide a liquid crystal device or a DMD (Digital Mirror Device) inside the housing 11 as in a general projector, and this makes it easier to reduce the size of the lighting device 10.

[0021] The driver 13 is realized by, for example, an application specific integrated circuit (ASIC). The driver 13 supplies a current modulated by pulse width modulation (PWM) to each of the plurality of light emitting elements 121. The driver 13 adjusts the pulse width of the current supplied to each light emitting element 121 to change the light emission intensity of each light emitting element 121, thereby achieving a dimming function. Note that the dimming method is not limited to PWM modulation, and may be other modulation methods such as amplitude modulation or phase modulation.

[0022] In the embodiment, the driving unit 13 is mounted on a single substrate (not shown) together with the light source 12. The substrate is, for example, a rigid substrate, but may also be a flexible substrate. The substrate is provided with, for example, pattern wiring for supplying current from the driving unit 13 to each of the plurality of light-emitting elements 121. Note that the substrate on which the driving unit 13 is mounted and the substrate on which the light source 12 is mounted may be separate.

[0023] The heat sink 14 is made of, for example, metal and is provided integrally with the metal housing 11 (here, the first housing 111). A board on which the light source 12 and the drive unit 13 are mounted is fixed to one surface of the heat sink 14 directly or indirectly via an insulating member or the like. This thermally connects the heat sink 14 and the board, and heat generated by the light source 12 and the drive unit 13 is dissipated via the heat sink 14. A fixing member such as an adhesive or a screw is used to fix the heat sink 14 to the board.

[0024] Lens barrel 15 is an optical member including one or more lenses 151. In this embodiment, lens barrel 15 applies a predetermined optical effect to the light emitted from light source 12 and emits the light forward so that an illumination pattern B1 based on the illumination light is imaged on a wall surface located in front of the lens barrel 15.

[0025] In the embodiment, the lens barrel 15 includes a barrel body and one or more lenses 151 (two lenses 151 in this example) fixed to the barrel body. The number, shape, outer diameter, and other factors of the lenses 151 included in the lens barrel 15 are determined as appropriate, for example, depending on the functionality required of the lens barrel 15. In the embodiment, the lens barrel 15 is movable in the front-rear direction relative to the light source 12 (its position can be adjusted in the front-rear direction). This allows the position of the lens barrel 15 to be adjusted in accordance with the distance between the lighting device 10 and a wall surface onto which the illumination light is irradiated, so that an illumination pattern B1 based on the illumination light is imaged on the wall surface. In other words, in the embodiment, the lighting device 10 is capable of adjusting the focus of the illumination pattern B1 based on the illumination light.

[0026] [Lighting Control System] Next, a lighting control system 2 according to an embodiment will be described with reference to Fig. 3. As shown in Fig. 3, the lighting control system 2 includes a communication unit 21, a processing unit 22, a storage unit 23, and a power supply unit 24. Note that the lighting control system 2 only needs to include the processing unit 22 (an acquisition unit 221, a determination unit 222, and a control unit 223, which will be described later), and may not include the communication unit 21, the storage unit 23, and the power supply unit 24.

[0027] The communication unit 21 receives various information such as object information (described later) by communicating with external devices such as one or more sensors 3 or the information processing terminal 4. The communication unit 21 is realized by a communication interface (communication circuit) for communicating with external devices via a network or the like. The communication may be wireless or wired. There are no particular limitations on the communication standard.

[0028] The processing unit 22 is realized, for example, by an LSI (Large Scale Integration), which is an integrated circuit (IC). The integrated circuit is not limited to an LSI, but may be a dedicated circuit or a general-purpose processor. In the embodiment, the processing unit 22 is a microcontroller. The microcontroller includes, for example, a non-volatile memory in which a program is stored, a volatile memory that is a temporary storage area for executing the program, input / output ports, and a processor that executes the program. The processing unit 22 may also be a programmable FPGA (Field Programmable Gate Array) or a reconfigurable processor in which the connections and settings of circuit cells in the LSI can be reconfigured. The functions performed by the processing unit 22 may be realized by software or hardware.

[0029] In the embodiment, the processing unit 22 has a function as an acquisition unit 221, a function as a determination unit 222, and a function as a control unit 223. In other words, the lighting control system 2 according to the embodiment includes the acquisition unit 221, the determination unit 222, and the control unit 223.

[0030] The acquisition unit 221 acquires object information related to the object A1 (see FIG. 4 ). Here, the object A1 is an object that is affected by the light emission pattern B1 emitted by the lighting control system 2, and may include, for example, a living body such as a person or an animal, or a non-living moving body such as a rolling sphere. The object A1 is not limited to a moving body, but may also include, for example, a fixed object such as a wall, floor, or ceiling, or space. Furthermore, the object A1 may also include the lighting device 10 itself.

[0031] In an embodiment, the object information includes information regarding at least one of the position of object A1, the direction of movement of object A1, the movement speed of object A1, the attributes of object A1, and the location of object A1.

[0032] Here, the attribute of the object A1 indicates, for example, the characteristics of the object A1. For example, if the object A1 is a person, the attribute of the object A1 may be information indicating that the object A1 is an event staff member such as a guide at an exhibition, or information indicating that the object A1 is an event visitor such as a guest or participant at an exhibition. Of course, the attribute of the object A1 is not limited to these and may be other information.

[0033] Furthermore, the location of the object A1 indicates, for example, a place visited by the object A1 if the object A1 is a person, a place where the object A1 is installed if the object A1 is a fixed object, or the location of the object A1 itself if the object A1 is space. For example, the location of the object A1 may include accommodation facilities such as hotels, event venues such as wedding receptions, baseball stadiums, art galleries, museums, historical buildings such as castles, theme parks, commercial facilities, etc. Of course, the location of the object A1 is not limited to these and may be other locations.

[0034] The object information may include, for example, data of a still image or a moving image including the object A1, data indicating the position of the object A1, data indicating the attributes of the object A1, or data indicating the sound of the object A1 or sounds around the object A1. The object information may also include, for example, data indicating the pressure exerted on or exerted by the object A1, data indicating the brightness of the location of the object A1, data indicating the wind strength at the location of the object A1, or data indicating the distance from any object to the object A1. The object information may also include, for example, data indicating the acceleration of the object A1, data indicating biometric information (e.g., heart rate, etc.) of the object A1, data indicating the number of people visiting the location of the object A1, or data indicating the flow of people visiting the location of the object A1. The object information may also include, for example, data indicating product sales at the location of the object A1, data indicating product inventory at the location of the object A1, etc. The object information may also include data related to the design of the location of the object A1, such as CAD (Computer Aided Design) data or BIM (Building Information Modeling) data. The object information may also include data indicating a gesture of the object A1. The object information may also include data related to the lighting design of the location where the object A1 is placed, or data related to a lighting simulation of the location where the object A1 is placed.

[0035] The acquisition unit 221 acquires, for example, object information transmitted from one or more sensors 3 or external devices such as the information processing terminal 4 via the communication unit 21. Note that the acquisition unit 221 may acquire object information stored in the storage unit 23.

[0036] The one or more sensors 3 are installed, for example, at the location where the lighting device 10 is installed, and each sensor detects different types of information related to the object A1. The one or more sensors 3 may include, for example, a camera that captures an image including the object A1, a sensor that detects attributes of the object A1 using UWB (Ultra-Wide Band) or BLE (Bluetooth (registered trademark) Low Energy), a seating sensor that detects whether the object A1 is seated, etc. The one or more sensors 3 may also include, for example, a microphone that detects the sound of the object A1 or sounds around the object A1, a human presence sensor that detects the presence or absence of the object A1 using infrared rays, an illuminance sensor that detects the brightness of the location of the object A1, or a wind speed sensor that detects the wind speed of the location of the object A1. The one or more sensors 3 may include, for example, a time-of-flight (TOF) sensor that detects the distance to the object A1, an acceleration sensor that detects the acceleration of the object A1, a pressure sensor that detects the pressure applied to or from the object A1, or an angle sensor that detects the angle of the object A1 relative to the object A1. The one or more sensors 3 may also include, for example, a vital sensor that detects biological information such as the heartbeat of the object A1, a magnetic sensor that detects the position of the object A1 using magnetism, or an ultrasonic sensor that detects the position of the object A1 using ultrasound. The one or more sensors 3 may also include, for example, a sensor that detects the location of the object A1 using a positioning system such as a GPS (Global Positioning System), or a sensor that detects the operation of the object A1, such as a switch.

[0037] The information processing terminal 4 is, for example, a terminal held by an administrator of the lighting control system 2. The information processing terminal 4 may include, for example, a smartphone, a tablet terminal, or a desktop or laptop personal computer. The acquisition unit 221 communicates with the information processing terminal 4, and thereby can acquire information input by the administrator in the information processing terminal 4 as object information.

[0038] The determination unit 222 determines the light emission pattern B1 based on the object information acquired by the acquisition unit 221. In the embodiment, the determination unit 222 determines the light emission pattern B1 by one of the following two methods. Note that the determination unit 222 may determine the light emission pattern B1 by combining the following two methods.

[0039] First, the determination unit 222 may determine the light emission pattern B1 from the object information, for example, by referring to correlation data stored in advance in the storage unit 23. Here, the correlation data is data linking the object information with the light emission pattern B1. In other words, the determination unit 222 may determine the light emission pattern B1 by comparing the object information acquired by the acquisition unit 221 with the correlation data and searching for the light emission pattern B1 linked to the object information.

[0040] Second, the determination unit 222 may determine the light emission pattern B1 from the object information, for example, using a trained model. Here, the trained model is a model trained by machine learning so as to input the object information and output the light emission pattern B1. The trained model is configured using, for example, a neural network. Furthermore, the trained model can be constructed by learning by supervised learning using, for example, a training dataset including a large number of samples. Each sample includes the object information as input data and the light emission pattern B1 as correct answer data.

[0041] The control unit 223 controls the light source 12. In the embodiment, the control unit 223 individually controls the current supplied to each of the plurality of light-emitting elements 121 based on the light-emitting pattern B1 determined by the determination unit 222. This controls the turning on and off of each of the plurality of light-emitting elements 121 and the light emission intensity when turned on, and causes the light source 12 to emit the light-emitting pattern B1 determined by the determination unit 222.

[0042] Specifically, the control unit 223 identifies two or more light-emitting elements 121 corresponding to two or more pixels that constitute the image showing the light-emitting pattern B1. Furthermore, the control unit 223 determines the luminance of each of the two or more light-emitting elements 121 based on the pixel values ​​of the two or more pixels. Then, the control unit 223 generates control information based on the identified two or more light-emitting elements 121 and the luminance of each of the two or more light-emitting elements 121.

[0043] The control information includes information regarding the on / off and emission intensity of each of the plurality of light-emitting elements 121. For example, the emission intensity can be expressed as an 8-bit numerical value ranging from 0% (off) to 100% (on at the highest emission intensity). The control unit 223 generates, as the control information, array data including data representing the emission intensity of each light-emitting element 121 in 8 bits for each row of the plurality of light-emitting elements 121. Here, the control unit 223 generates, as the control information, array data in which the emission intensity of two or more of the light-emitting elements 121 is greater than 0% and the emission intensity of the remaining light-emitting elements 121 is 0%.

[0044] Then, the control unit 223 outputs the generated control information to the drive unit 13. The drive unit 13 individually drives the plurality of light-emitting elements 121 in accordance with the received control information. Here, the drive unit 13 turns on only the two or more light-emitting elements 121 and turns off the remaining light-emitting elements 121. As a result, the light emission pattern B1 is irradiated from the light source 12, and the illumination light irradiated from the light source 12 is irradiated onto, for example, a wall surface, thereby forming an image of the light emission pattern B1 on the wall surface.

[0045] FIG. 4 is a schematic diagram illustrating an example of illumination of a light emission pattern B1 by the lighting control system 2 according to the embodiment. In the example illustrated in FIG. 4, the lighting device 10 (lighting control system 2) provides route information to a person (object A1) by illuminating the person with an arrow-shaped light emission pattern B1 ahead of the person. The route may include, for example, an evacuation route in the event of a disaster. In this manner, the determination unit 222 may determine the light emission pattern B1 for providing information to the object A1. Then, the control unit 223 may cause the light source 12 to illuminate the light emission pattern B1 near the object A1.

[0046] The information provided to the object A1 by the light emitting pattern B1 is not limited to route information, and may be other information. For example, the light emitting pattern B1 may be a pattern that provides event information to a person (object A1), such as a pattern encouraging entry into a store or a pattern that explains products at an exhibition hall. In addition, the light emitting pattern B1 may be a pattern that assists the field of vision of a person (object A1), or a pattern that induces the person to wake up.

[0047] 3, the storage unit 23 is a storage device that stores computer programs and the like executed by the processing unit 22. The storage unit 23 is realized by, for example, a semiconductor memory.

[0048] The power supply unit 24 supplies operating power to the lighting control system 2 and the drive unit 13. The power supply unit 24 has, for example, an AC-DC converter circuit, converts AC power supplied from the commercial power source 5 into DC power, and supplies the converted DC power to each component of the lighting control system 2 and the drive unit 13.

[0049] [Examples of Use] Examples of use of the lighting control system 2 according to the embodiment will be listed below.

[0050] (1) For example, if the location of the object A1 is an art museum or a museum, the acquisition unit 221 acquires object information indicating an image of the exhibit (object A1) from the camera via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the image of the exhibit. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform various effects according to the shape of the exhibit.

[0051] (2) For example, if the location of the object A1 is an art museum or a museum, the acquisition unit 221 acquires object information indicating an image of the visitor (object A1) from a camera and object information indicating the visitor's position from a sensor using UWB or BLE via the communication unit 21. The determination unit 222 determines an illumination pattern B1 based on the image and position of the visitor. The control unit 223 then causes the light source 12 to emit the illumination pattern B1 determined by the determination unit 222. This makes it possible to guide the visitor to a predetermined location, for example by emitting an illumination pattern B1 representing an arrow or a character string guiding the visitor near the visitor.

[0052] (3) For example, if the location of the object A1 is a stage or the like, the acquisition unit 221 acquires object information indicating an image of the performer (object A1) from a camera and object information indicating the position of the performer from a sensor using UWB or BLE via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the image and position of the performer. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform various effects according to the movements of the performer.

[0053] (4) For example, if the location of the object A1 is an art museum or a museum, the acquisition unit 221 acquires object information indicating the attributes and location of the visitor (object A1) from a communication device such as a beacon or smartphone carried by the visitor via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the visitor's attributes and location. The control unit 223 then causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform various effects according to the attributes of the visitor.

[0054] (5) For example, if the location of the object A1 is an art museum or a museum, the acquisition unit 221 acquires object information indicating an image of the visitor (object A1) from a camera and object information indicating the position of the visitor from a sensor using UWB or BLE via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the image and position of the visitor. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform various effects according to the movement of the visitor.

[0055] (6) For example, if the location of the object A1 is an amusement facility such as a haunted house, the acquisition unit 221 acquires object information indicating an image of the visitor (object A1) from a camera and object information indicating the position of the visitor from a sensor using UWB or BLE via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the image and position of the visitor. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform various effects according to the movement and physique of the visitor.

[0056] (7) For example, if the location of the object A1 is an amusement facility such as a haunted house, the acquisition unit 221 acquires object information indicating sounds emitted by a visitor (object A1) from the microphone via the communication unit 21. The determination unit 222 determines a light emission pattern B1 based on the sounds emitted by the visitor. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform various effects according to the words or breathing of the visitor.

[0057] (8) For example, if the location of the object A1 is a parking lot, the acquisition unit 221 acquires object information indicating the position of the vehicle (object A1) from a sensor using UWB or BLE via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the position of the vehicle. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to guide the vehicle user to the vehicle, for example, by emitting the light emission pattern B1 indicating the route to the vehicle or by emitting the light emission pattern B1 that directly illuminates the vehicle.

[0058] (9) For example, if the location of the target object A1 is a nursery school, kindergarten, zoo, warehouse, office, or the like, the acquisition unit 221 acquires target object information indicating the position of the search target object (target object A1) or the search target person (target object A1) from a sensor using UWB or BLE via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the position of the search target object or the search target person. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to guide the person searching to the search target object or the search target person, for example, by emitting the light emission pattern B1 indicating the route to the search target object or the search target person.

[0059] The acquisition unit 221 may acquire information that identifies the object or person to be searched for from the information processing terminal 4 via the communication unit 21. In this case, the person performing the search can simply input, into the information processing terminal 4, an input that identifies the object or person to be searched for, such as "shining a light on XX."

[0060] (10) For example, if the location of the object A1 is an art museum or a museum, the acquisition unit 221 acquires object information indicating images of visitors (object A1) from a camera and object information indicating the positions of the visitors from a sensor using UWB or BLE via the communication unit 21. The determination unit 222 estimates the number of visitors based on the images and positions of the visitors and determines the light emission pattern B1 based on the estimated number of visitors. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. As a result, it is possible to perform various effects according to the number of visitors, for example, when the number of visitors in a predetermined location increases, such as stopping a performance performed in a predetermined location using a spotlight and changing to a performance encouraging movement.

[0061] (11) For example, if the location of the object A1 is a store or the like, the acquisition unit 221 acquires object information indicating a person (object A1) sitting from the seating sensor via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the person sitting. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform various effects depending on, for example, the person sitting.

[0062] (12) For example, if the location of the object A1 is a museum, an event venue, or the like, the acquisition unit 221 acquires object information indicating an operation of a visitor (object A1) from the switch via the communication unit 21. The determination unit 222 determines a light emission pattern B1 based on the operation of the visitor. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform various effects in response to, for example, the operation of the visitor.

[0063] (13) For example, if the location of the object A1 is an office, a store, or the like, the acquisition unit 221 acquires object information indicating the entry or exit of a person (object A1) from a camera or a motion sensor via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the person's entry or exit. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform various effects in response to, for example, a person's entry or exit.

[0064] (14) For example, if the location of the object A1 is a space, the acquisition unit 221 acquires object information indicating the illuminance of the space (object A1) from the illuminance sensor via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the illuminance of the space. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to automatically adjust the brightness of the light emission pattern B1 according to the illuminance of the space, for example.

[0065] (15) For example, if the location of the object A1 is an office, a store, or the like, the acquisition unit 221 acquires object information indicating the wind speed in the space (object A1) from a wind speed sensor via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the wind speed in the space. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to automatically adjust the speed of the effect using the light emission pattern B1 according to the wind speed in the space, for example.

[0066] (16) For example, if the location of the object A1 is a parking lot or the like, the acquisition unit 221 acquires object information indicating an image of an empty space (object A1) from the camera via the communication unit 21. The determination unit 222 estimates the number of empty spaces from the image of the empty spaces and determines the light emission pattern B1 based on the estimated number of empty spaces. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform various effects according to, for example, the number of empty spaces.

[0067] (17) For example, if the location of the object A1 is a museum, an event venue, or the like, the acquisition unit 221 acquires object information indicating the acceleration of the lighting device 10 (object A1) from the acceleration sensor and object information indicating the angle of the lighting device 10 from the angle sensor via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the acceleration and angle of the lighting device 10. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to always emit the light emission pattern B1 at the same location regardless of, for example, the movement and orientation of the lighting device 10.

[0068] (18) For example, if the location of the object A1 is an event venue or the like, the acquisition unit 221 acquires, via the communication unit 21, object information indicating an image of a visitor (object A1) from a camera and object information indicating the position of the visitor from a sensor using UWB or BLE. The determination unit 222 estimates the end of the line of visitors based on the image and the position of the visitor, and determines the light emission pattern B1 based on the estimated end. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform various effects, such as having the light emission pattern B1, which displays a character string indicating the end of the line of visitors, such as "The end is here," follow the end of the line.

[0069] (19) For example, if the location of the object A1 is a hotel, an office, or the like, the acquisition unit 221 acquires object information indicating the attributes and location of the staff member (object A1) or user (object A1) from a communication device such as a beacon or a smartphone carried by the staff member (object A1) or user via the communication unit 21. The determination unit 222 determines an illumination pattern B1 based on the attributes and location of the staff member or user. Then, the control unit 223 causes the light source 12 to emit the illumination pattern B1 determined by the determination unit 222. This makes it possible to guide the staff member or user to the destination, for example, by emitting an illumination pattern B1 indicating the route to the destination (including the guest room in the case of a hotel).

[0070] (20) For example, when the location of the object A1 is an open space, the acquisition unit 221 acquires object information indicating biometric information of a person (object A1) from a vital sensor via the communication unit 21. The determination unit 222 estimates the person's emotion based on the person's biometric information and determines a light emission pattern B1 based on the estimated emotion. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. In this way, for example, by emitting the light emission pattern B1 according to the person's emotion, it is possible to lift the person's mood or relax the person.

[0071] (21) For example, if the location of the object A1 is a banquet hall or the like, the acquisition unit 221 acquires object information indicating an image of a key character (object A1) such as a host from a camera, and object information indicating the position of the key character from a communication device such as a beacon or smartphone carried by the key character, via the communication unit 21. The determination unit 222 determines a light emission pattern B1 based on the image and position of the key character. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform various effects, such as emitting a light emission pattern B1 that follows the key character.

[0072] (22) For example, if the location of the object A1 is an aquarium, theme park, art gallery, museum, or the like, the acquisition unit 221 acquires object information indicating the attributes of the visitor (object A1) from a communication device such as a beacon or smartphone carried by the visitor via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on statistical data indicating the visitor's attributes and the visitor's past stay time, etc. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to lengthen the visitor's stay time, for example, by emitting a light emission pattern B1 that encourages visitors to stay for a long period of time.

[0073] (23) For example, if the location of the object A1 is a factory, a warehouse, or the like, the acquisition unit 221 acquires object information indicating the position of the employee from a communication device such as a beacon or smartphone carried by the employee (object A1) via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the position of the employee. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to optimize the employee's movement route, for example, by emitting the light emission pattern B1 according to changes in the employee's position.

[0074] (24) For example, if the location of the object A1 is a store or the like, the acquisition unit 221 acquires object information indicating the attributes of the user from a communication device such as a beacon or smartphone carried by the user (object A1) via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the user's attributes and statistical data indicating products and the like purchased by the user in the past. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to increase sales of products and the like, for example, by emitting the light emission pattern B1 that stimulates the user's desire to purchase.

[0075] (25) For example, if the location of the object A1 is a restaurant or the like, the acquisition unit 221 acquires object information indicating an image of a product (object A1) such as food or drink from the camera and object information indicating the timing at which the product is placed on a table or the like from the pressure sensor via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the image of the product and the timing. The control unit 223 then causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform a presentation appropriate to the product, for example, at the timing at which the product is placed on a table or the like.

[0076] (26) For example, if the location of the object A1 is in space, the acquisition unit 221 acquires object information indicating the position of the space (object A1) from a positioning system such as GPS via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the weather at the location in the space by referring to weather information provided by a weather service. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform various effects according to the weather in the space, for example.

[0077] (27) For example, if the location of the object A1 is a room, the acquisition unit 221 acquires object information indicating whether the door of the room (object A1) is open or closed from a switch or the like via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the opening or closing of the door. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to guide the person who opened or closed the door to a predetermined location, for example, by emitting the light emission pattern B1 corresponding to the opening or closing of the door.

[0078] (28) For example, if the location of the object A1 is an office, a store, or the like, the acquisition unit 221 acquires object information indicating design information of the space (object A1), such as CAD data or BIM data, via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the design information of the space. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform a lighting effect optimized for the space, for example.

[0079] (29) For example, if the location of the object A1 is an open space, the acquisition unit 221 acquires object information indicating an image of an irradiated surface (object A1) such as a floor or a wall from the camera via the communication unit 21. The determination unit 222 estimates the state of the irradiated surface, such as the texture or appearance of the irradiated surface, based on the image of the irradiated surface, and determines the light emission pattern B1 based on the estimated state. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform a lighting effect optimized for the state of the irradiated surface, for example.

[0080] (30) For example, if the location of the object A1 is in space, the acquisition unit 221 acquires object information indicating an image of a person (object A1) from the camera via the communication unit 21. The determination unit 222 estimates a gesture of the person based on the image of the person and determines a light emission pattern B1 based on the estimated gesture. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform various effects according to, for example, the person's gesture.

[0081] (31) For example, if the location of the object A1 is an office, a store, or the like, the acquisition unit 221 acquires object information indicating data related to the lighting design of the space (object A1) via the communication unit 21. The determination unit 222 determines the light emission pattern B1 based on the data related to the lighting design of the space. Then, the control unit 223 causes the light source 12 to emit the light emission pattern B1 determined by the determination unit 222. This makes it possible to perform a lighting effect optimized for the space, for example.

[0082] (32) For example, if the location of the object A1 is an office, a store, or the like, the acquisition unit 221 acquires object information indicating data related to a lighting simulation of the space (object A1) via the communication unit 21. The determination unit 222 determines an illumination pattern B1 based on the data related to the lighting simulation of the space. Then, the control unit 223 causes the light source 12 to emit the illumination pattern B1 determined by the determination unit 222. This makes it possible to perform a lighting effect optimized for the space, for example.

[0083] [Operation] The operation of the lighting control system 2 according to the embodiment will be described below with reference to Fig. 5. Fig. 5 is a flowchart showing an example of the operation of the lighting control system 2 according to the embodiment.

[0084] First, the acquisition unit 221 acquires object information (S1). In the embodiment, as already described above, the acquisition unit 221 acquires object information transmitted from an external device such as one or more sensors 3 or the information processing terminal 4 via the communication unit 21.

[0085] Next, the determination unit 222 determines the light emission pattern B1 based on the object information acquired by the acquisition unit 221 (S2). In the embodiment, as already described, the determination unit 222 may determine the light emission pattern B1 from the object information, for example, by referring to correlation data stored in advance in the storage unit 23. Alternatively, the determination unit 222 may determine the light emission pattern B1 from the object information by using, for example, a trained model.

[0086] Then, the control unit 223 controls the current supplied to each of the plurality of light-emitting elements 121 individually based on the light-emitting pattern B1 determined by the determination unit 222, thereby causing the light source 12 to emit the light-emitting pattern B1 (S3). In the embodiment, as already described, the control unit 223 generates control information based on an image showing the light-emitting pattern B1 and outputs the generated control information to the drive unit 13. In this way, the drive unit 13 drives the plurality of light-emitting elements 121 individually in accordance with the received control information.

[0087] [Advantages] The advantages of the lighting control system 2 (lighting control method) according to the embodiment will now be described. As described above, the lighting control system 2 according to the embodiment determines the light emission pattern B1 based on object information related to the object A1, and causes the determined light emission pattern B1 to be irradiated from the light source 12. Therefore, the lighting control system 2 according to the embodiment has the advantage that, because the light emission pattern B1 is determined based on the object information, it becomes easier to irradiate the light emission pattern B1 according to the situation in which the object A1 is placed.

[0088] [Other Modifications, etc.] Although the present invention has been described above based on the embodiments, the present invention is not limited to the above-described embodiments.

[0089] In the above embodiment, the acquisition unit 221 may further acquire instruction information instructing to change at least a part of the light emission pattern B1 determined by the determination unit 222. For example, the acquisition unit 221 may acquire instruction information input by the information processing terminal 4 from the information processing terminal 4 via the communication unit 21. The determination unit 222 may then change the light emission pattern B1 based on the instruction information acquired by the acquisition unit 221. In this case, there is an advantage that the user of the lighting control system 2 can appropriately edit the light emission pattern B1 determined by the determination unit 222.

[0090] In the above embodiment, when the determination unit 222 executes the process of determining the light emission pattern B1 by referring to the correlation data stored in the storage unit 23, the acquisition unit 221 may acquire the detection results of the sensor 3 that detects the object A1. Then, the determination unit 222 may estimate the movement mode of the object A1 based on the detection results and add the estimated movement mode of the object A1 to the correlation data as object information. In this case, the movement mode of the object A1 can be newly added to the correlation data, which has the advantage of increasing the amount of information in the correlation data.

[0091] In the above embodiment, if the object A1 is a person, the acquisition unit 221 may acquire object information by obtaining the detection result of the sensor 3 that detects the person with the person's permission. In this case, the object information is acquired after obtaining consent from, for example, visitors to a theme park to provide personal information, which has the advantage that legal issues regarding the provision of personal information are less likely to arise.

[0092] In the above embodiment, the acquisition unit 221 may further acquire change information indicating a change in the object A1 when the light source 12 irradiates the object A1 with the light emission pattern B1. For example, if the object A1 is a person, the change information is information indicating a change in the person's behavior due to irradiation with the light emission pattern B1. Furthermore, if the object A1 is a space, the change information is information indicating a change in the state of the space due to irradiation with the light emission pattern B1. The determination unit 222 may then determine the light emission pattern B1 further based on the change information acquired by the acquisition unit 221. In this case, the change in the object A1 due to irradiation with the light emission pattern B1 can be fed back to the process of determining the light emission pattern B1, which has the advantage of easily improving the accuracy of determining an appropriate light emission pattern B1 according to the situation in which the object A1 is placed.

[0093] In the above embodiment, the light source 12 is a light source that emits white light, but this is not limited to this. For example, the light source 12 may be a light source that emits light of a color other than white. Furthermore, the light source 12 is not limited to a light source that emits monochromatic light, but may be a light source 12 that has a color adjustment function that allows it to emit light of various colors by being controlled by the lighting control system 2.

[0094] In the above embodiment, the heat sink 14 is provided integrally with the housing 11, but this is not limiting. For example, the heat sink 14 may be separate from the housing 11 and fixed to the housing 11 by a predetermined means (for example, welding, adhesive bonding, or fastening with bolts). In this case, the housing 11 may be made of, for example, resin.

[0095] In the above-described embodiment, the processing performed by a specific processing unit may be performed by another processing unit, the order of multiple processing operations may be changed, or multiple processing operations may be performed in parallel.

[0096] Furthermore, in the above embodiment, the lighting system is realized as one lighting device 10, but this is not limiting. For example, the lighting system may be realized as a plurality of devices.

[0097] Furthermore, for example, the processes described in the above embodiments may be realized by centralized processing using a single device (system), or may be realized by distributed processing using multiple devices. Furthermore, the processor that executes the program corresponding to the processes described in the above embodiments may be a single processor or multiple processors. In other words, centralized processing or distributed processing may be performed.

[0098] In the above embodiment, all or some of the components such as the processing unit 22 may be configured with dedicated hardware, or may be realized by executing a software program suitable for each component. Each component may be realized by a program execution unit such as a CPU (Central Processing Unit) or a processor reading and executing a software program recorded on a recording medium such as a HDD (Hard Disk Drive) or semiconductor memory.

[0099] Furthermore, the components such as the processing unit 22 may be configured with one or more electronic circuits. Each of the one or more electronic circuits may be a general-purpose circuit or a dedicated circuit.

[0100] The one or more electronic circuits may include, for example, a semiconductor device, an IC, or an LSI. The IC or LSI may be integrated on a single chip or on multiple chips. Although the IC or LSI is referred to here as an IC or LSI, the name may vary depending on the degree of integration, and may be called a system LSI, a VLSI (Very Large Scale Integration), or an ULSI (Ultra Large Scale Integration). Also, an FPGA that is programmed after the LSI is manufactured can be used for the same purpose.

[0101] Furthermore, the general or specific aspects of the present invention may be realized as a system, an apparatus, a method, an integrated circuit, or a computer program. Alternatively, the present invention may be realized as a computer-readable non-transitory recording medium such as an optical disk, a HDD, or a semiconductor memory on which the computer program is stored. Alternatively, the present invention may be realized as any combination of a system, an apparatus, a method, an integrated circuit, a computer program, and a recording medium.

[0102] In addition, the present invention also includes forms obtained by applying various modifications to the above embodiments that a person skilled in the art would think of, and forms realized by arbitrarily combining the components and functions of the above embodiments within the scope of the present invention.

[0103] (Summary) As described above, the lighting control system 2 according to the first aspect includes an acquisition unit 221, a determination unit 222, and a control unit 223. The acquisition unit 221 acquires object information related to the object A1. The determination unit 222 determines an emission pattern B1 based on the object information acquired by the acquisition unit 221. The control unit 223 controls the light source 12 having a plurality of light-emitting elements 121 arranged in an array. The control unit 223 individually controls the plurality of light-emitting elements 121 to cause the light source 12 to emit the emission pattern B1 determined by the determination unit 222.

[0104] According to such a lighting control system 2, the light emission pattern B1 is determined based on the object information, which has the advantage that it is easy to irradiate the object A1 with the light emission pattern B1 that is appropriate for the situation in which the object A1 is placed.

[0105] Also, for example, in the lighting control system 2 relating to the second aspect, in the first aspect, the object information includes information regarding at least one of the position of the object A1, the direction of movement of the object A1, the movement speed of the object A1, the attributes of the object A1, and the location of the object A1.

[0106] Such a lighting control system 2 has the advantage that the light emission pattern B1 can be determined based on the detailed situation in which the object A1 is placed, which makes it easier to improve the accuracy in determining an appropriate light emission pattern B1 according to the situation in which the object A1 is placed.

[0107] In addition, for example, in the lighting control system 2 according to the third aspect, in the second aspect, the determination unit 222 determines a light emission pattern B1 for providing information to the object A1. The control unit 223 causes the light source 12 to irradiate the light emission pattern B1 toward the vicinity of the object A1.

[0108] Such a lighting control system 2 has the advantage that it is easier to provide information to the object A1 by showing the light emitting pattern B1 to the object A1.

[0109] Also, for example, in the lighting control system 2 relating to the fourth aspect, in any one of the first to third aspects, the determination unit 222 determines the light emission pattern B1 from the object information by referring to correlation data linking the object information with the light emission pattern B1.

[0110] According to such a lighting control system 2, the light emission pattern B1 can be determined on a rule basis, which has the advantage that an erroneous light emission pattern B1 that does not match the object information is unlikely to be determined.

[0111] Also, for example, in the lighting control system 2 relating to the fifth aspect, in any one of the first to third aspects, the determination unit 222 determines the light emission pattern B1 from the object information using a trained model that has been trained by machine learning to input the object information and output the light emission pattern B1.

[0112] According to such a lighting control system 2, since the light emission pattern B1 can be determined even for new object information, there is an advantage that there is no need to prepare correlation data corresponding to new object information.

[0113] Furthermore, for example, in the lighting control system 2 according to the sixth aspect, in any one of the first to fifth aspects, the acquisition unit 221 further acquires instruction information that instructs changing at least a part of the light emission pattern B1 determined by the determination unit 222. The determination unit 222 changes the light emission pattern B1 based on the instruction information acquired by the acquisition unit 221.

[0114] Such a lighting control system 2 has the advantage that a user of the lighting control system 2 can edit the light emission pattern B1 determined by the determination unit 222 as appropriate.

[0115] Furthermore, for example, in the lighting control system 2 according to the seventh aspect, in the fourth aspect, the acquisition unit 221 acquires the detection result of the sensor 3 that detects the object A1. The determination unit 222 estimates the movement mode of the object A1 based on the detection result, and adds the estimated movement mode of the object A1 to the correlation data as object information.

[0116] According to such a lighting control system 2, the manner of movement of the object A1 can be newly added to the correlation data, which has the advantage of increasing the amount of information in the correlation data.

[0117] Furthermore, for example, in the lighting control system 2 according to the eighth aspect, in any one of the first to seventh aspects, the object A1 is a person. The acquisition unit 221 acquires the object information by acquiring the detection result of the sensor 3 that detects the person with the person's permission.

[0118] Such a lighting control system 2 has the advantage that object information is acquired only after obtaining consent from, for example, theme park visitors to provide their personal information, making it less likely that legal issues will arise regarding the provision of personal information.

[0119] Furthermore, for example, in the lighting control system 2 according to the ninth aspect, in any one of the first to eighth aspects, the acquisition unit 221 further acquires change information indicating a change in the object A1 when the light source 12 irradiates the light emission pattern B1. The determination unit 222 determines the light emission pattern B1 further based on the change information acquired by the acquisition unit 221.

[0120] According to such a lighting control system 2, changes in the object A1 caused by the irradiation of the light emitting pattern B1 can be fed back to the process of determining the light emitting pattern B1, which has the advantage of making it easier to improve the accuracy of determining an appropriate light emitting pattern B1 according to the situation in which the object A1 is placed.

[0121] Furthermore, for example, a lighting device 10 according to a tenth aspect includes the lighting control system 2 according to any one of the first to ninth aspects, a light source 12, and a housing 11. The housing 11 houses the lighting control system 2 and the light source 12.

[0122] According to such lighting device 10, since the light emission pattern B1 is determined based on the object information, there is an advantage that it is easy to irradiate the object A1 with the light emission pattern B1 that is appropriate for the situation in which the object A1 is placed.

[0123] Furthermore, for example, in a lighting control method according to an eleventh aspect, object information relating to an object A1 is acquired (S1). Furthermore, in the lighting control method, a light emission pattern B1 is determined based on the acquired object information (S2). Furthermore, in the lighting control method, a light source 12 having a plurality of light-emitting elements 121 arranged in an array is controlled. In the process of controlling the light source 12, the plurality of light-emitting elements 121 are individually controlled to cause the light source 12 to emit the determined light emission pattern B1 (S3).

[0124] According to such a lighting control method, the light emission pattern B1 is determined based on the object information, which has the advantage that it is easier to irradiate the object A1 with the light emission pattern B1 that is appropriate for the situation in which the object A1 is placed.

[0125] REFERENCE SIGNS LIST 10 Illumination device 11 Housing 12 Light source 121 Light-emitting element 2 Illumination control system 221 Acquisition unit 222 Determination unit 223 Control unit 3 Sensor A1 Object B1 Emission pattern

Claims

1. A lighting control system comprising: an acquisition unit that acquires object information relating to an object; a determination unit that determines a light emission pattern based on the object information acquired by the acquisition unit; and a control unit that controls a light source having a plurality of light-emitting elements arranged in an array, wherein the control unit individually controls the plurality of light-emitting elements to cause the light source to emit the light emission pattern determined by the determination unit.

2. The lighting control system of claim 1, wherein the object information includes information regarding at least one of the position of the object, the direction of movement of the object, the movement speed of the object, the attributes of the object, and the location of the object.

3. The lighting control system according to claim 2, wherein the determination unit determines the light emission pattern for providing information to the object, and the control unit causes the light source to irradiate the light emission pattern near the object.

4. A lighting control system according to any one of claims 1 to 3, wherein the determination unit determines the light emission pattern from the object information by referring to correlation data linking the object information with the light emission pattern.

5. A lighting control system according to any one of claims 1 to 3, wherein the determination unit determines the light emission pattern from the object information using a trained model trained by machine learning to input the object information and output the light emission pattern.

6. A lighting control system as described in any one of claims 1 to 3, wherein the acquisition unit further acquires instruction information that instructs a change to at least a part of the light emission pattern determined by the determination unit, and the determination unit changes the light emission pattern based on the instruction information acquired by the acquisition unit.

7. The lighting control system of claim 4, wherein the acquisition unit acquires the detection results of a sensor that detects the object, and the determination unit estimates the movement pattern of the object based on the detection results, and adds the estimated movement pattern of the object to the correlation data as the object information.

8. A lighting control system according to any one of claims 1 to 3, wherein the object is a person, and the acquisition unit acquires the object information by acquiring the detection results of a sensor that detects the person with the person's permission.

9. A lighting control system according to any one of claims 1 to 3, wherein the acquisition unit further acquires change information indicating a change in the object when the light source irradiates the light emission pattern, and the determination unit determines the light emission pattern further based on the change information acquired by the acquisition unit.

10. A lighting device comprising: the lighting control system according to any one of claims 1 to 3; the light source; and a housing that houses the lighting control system and the light source.

11. A lighting control method comprising: acquiring object information relating to an object; determining a light emission pattern based on the acquired object information; controlling a light source having a plurality of light-emitting elements arranged in an array; and controlling the light source so as to individually control the plurality of light-emitting elements to irradiate the determined light emission pattern from the light source.

Images