Lighting control system, lighting device, sensor device, setting device, control device, lighting control method and program

Abstract

The objective of this disclosure is to improve convenience. [Solution] The lighting control system comprises one or more lighting devices A1 and a sensor device that detects one or more physical quantities in the lighting space of the lighting device A1. The lighting device A1 includes a light source unit 10 that irradiates the lighting space with lighting light, a power supply unit 11 that supplies power to the light source unit 10, a wireless communication unit 12 that receives wireless signals, a storage unit 13 that stores multiple scene information, and a control unit 14 that selects one scene information from the multiple scene information stored in the storage unit 13 based on the wireless signal and controls the power supply unit 11 based on the selected scene information. Each of the multiple scene information includes lighting-related information that specifies at least one of the intensity of the lighting light, the color of the light, and the direction of irradiation, and mode specification information that specifies one control mode from among multiple control modes.

Description

Technical Field

[0001] The present disclosure relates to a lighting control system, a lighting device, a sensor device, a setting device, a control device, a lighting control method, and a program, and more particularly to a lighting control system, a lighting device, a sensor device, a setting device, a control device, a lighting control method, and a program that perform lighting control by wireless communication.

Background Art

[0002] Conventionally, a lighting control system that performs lighting control by wireless communication has been provided for the purpose of construction work savings in new construction and renovation. For example, the lighting system (lighting control system) described in Patent Document 1 has lighting fixtures (lighting devices), a lighting control remote controller (control device), a human presence sensor, an illuminance sensor, and the like.

[0003] The lighting control remote controller has a plurality of buttons that correspond one-to-one with a plurality of scenes. A scene indicates that the lighting fixture is lit at a specific dimming rate and color temperature. That is, when any button is operated, a lighting control command for lighting the lighting fixture at the dimming rate and color temperature of the scene corresponding to the operated button is transmitted from the lighting control remote controller to the lighting fixture.

[0004] In addition, the lighting control system can also control the lighting fixture based on the detection result of a person by the human presence sensor and the illuminance detected by the illuminance sensor. In this case, the detection operations of the human presence sensor and the illuminance sensor are turned on / off according to a control command transmitted from the lighting control remote controller or other devices.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] As described above, in conventional lighting control systems, it is necessary to transmit scene switching and control mode switching in scene control as separate control commands to the lighting fixtures. Control modes include, for example, control modes based on the detection operation of a motion sensor, control modes based on illuminance detected by an illuminance sensor, and control modes that do not utilize motion sensors or illuminance sensors.

[0007] However, conventional lighting control systems were not user-friendly because scene switching and control mode switching had to be transmitted as separate control commands.

[0008] The purpose of this disclosure is to provide a lighting control system, lighting device, sensor device, setting device, control device, lighting control method, and program that can improve convenience. [Means for solving the problem]

[0009] A lighting control system according to one aspect of the present disclosure comprises one or more lighting devices and a sensor device for detecting one or more physical quantities in the lighting space of the lighting devices. The lighting device includes a light source unit for irradiating the lighting space with lighting light, a power supply unit for supplying power to the light source unit, and a wireless communication unit for receiving wireless signals. The lighting device includes a storage unit for storing a plurality of scene information and a control unit for selecting one scene information from the plurality of scene information stored in the storage unit based on the wireless signal, and for controlling the power supply unit based on the selected scene information. Each of the plurality of scene information includes lighting-related information specifying at least one of the intensity, color, and direction of illumination of the lighting light, and mode-specifying information specifying one control mode from a plurality of control modes.

[0010] An illumination device according to one aspect of the present disclosure is an illumination device provided in the illumination control system. The illumination device includes a light source unit that irradiates the illumination space with illumination light, a power supply unit that supplies power to the light source unit, a wireless communication unit that receives the wireless signal, a storage unit that stores the plurality of scene information, and a control unit that controls the power supply unit based on one scene information selected from the plurality of scene information stored in the storage unit.

[0011] A sensor device according to one aspect of the present disclosure is a sensor device provided in the lighting control system. The sensor device detects one or more physical quantities in the lighting space of the lighting device and transmits the detection result of the physical quantity or a control command based on the detection result to the lighting device as a wireless signal.

[0012] A setting device according to one aspect of this disclosure is a setting device provided in the lighting control system. The setting device is configured to create the scene information and to transmit the created scene information to the lighting device via wireless communication.

[0013] A control device according to one aspect of the present disclosure is a control device provided in the lighting control system. The control device is wirelessly connected to the lighting device, receives a trigger input, creates a control command that instructs the selection of scene information corresponding to the trigger input, and transmits the wireless signal including the control command to the lighting device.

[0014] A lighting control method according to one aspect of the present disclosure is a lighting control method in a lighting control system. The lighting control method causes the plurality of scene information to be stored in the storage unit of the lighting device. The lighting control method causes the control unit of the lighting device to control the power supply unit based on one scene information selected from the plurality of scene information stored in the storage unit. Each of the plurality of scene information includes lighting-related information that specifies at least one of the intensity, color, and direction of illumination of the illumination light, and mode-specifying information that specifies one control mode from among the plurality of control modes.

[0015] A program according to one aspect of the present disclosure causes a computer system to execute the lighting control method.

Advantages of the Invention

[0016] The lighting control system, lighting device, sensor device, setting device, control device, lighting control method, and program of the present disclosure have the effect of improving convenience.

Brief Description of the Drawings

[0017] [Figure 1] FIG. 1 is a system configuration diagram of a lighting control system according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is a block diagram of a lighting device in the lighting control system described above. [Figure 3] FIG. 3 is a block diagram of a sensor device in the lighting control system described above. [Figure 4] FIG. 4 is a block diagram of a communication device in the lighting control system described above. [Figure 5] FIG. 5 is a block diagram of a control device in the lighting control system described above. [Figure 6] FIG. 6 is a block diagram of a setting device in the lighting control system described above. [Figure 7] FIG. 7 is an explanatory diagram of a mesh network used in the lighting control system described above. [Figure 8] FIG. 8 is an arrangement diagram of areas and zones in the lighting control system described above. [Figure 9] FIG. 9 is a sequence diagram for explaining the operation of sensor control in the lighting control system described above. [Figure 10] FIG. 10 is a sequence diagram for explaining the operation of schedule control in the lighting control system described above. [Figure 11] FIG. 11 is a sequence diagram for explaining the operation of sensor control in the lighting control system of Modification 3.

Modes for Carrying Out the Invention

[0018] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. However, the configurations described in the following embodiments are merely examples of the present disclosure. The present disclosure is not limited to the following embodiments, and various modifications can be made according to the design etc. as long as the effects of the present disclosure can be achieved.

[0019] (1) Overview The lighting control system S1 according to the embodiment includes one or more lighting devices A1 and a sensor device B1 that detects one or more physical quantities in the lighting space of the lighting device A1 (see FIG. 1). The lighting control system S1 according to the embodiment is installed in, for example, commercial facilities such as office buildings and shopping centers, factories, warehouses, public facilities such as libraries, etc. However, these facilities are merely examples, and the location where the lighting control system S1 according to the embodiment is installed is not limited.

[0020] The lighting device A1 has a light source unit 10 that irradiates lighting light into the lighting space, a power supply unit 11 that supplies power to the light source unit 10, and a wireless communication unit 12 that receives a wireless signal (see FIG. 2). The light source unit 10 has, for example, an LED module configured by mounting a plurality of LEDs on a substrate. Note that the LED module may be composed of a plurality of types of LEDs with different light colors. The power supply unit 11 includes, for example, a power conversion circuit that converts AC power supplied from an external power supply P1 into DC power. The power supply unit 11 is configured to dim (or adjust the color) the light source unit 10 by increasing or decreasing the power (DC current) supplied from the power conversion circuit to the light source unit 10. The wireless communication unit 12 is configured to perform wireless communication using radio waves as a medium.

[0021] The lighting device A1 has a storage unit 13 that stores a plurality of scene information and a control unit 14 (see FIG. 2). Each of the plurality of scene information includes lighting relationship information that designates at least one of the intensity, light color, and irradiation direction of the lighting light, and mode designation information that designates one control mode from among a plurality of control modes.

[0022] The control unit 14 primarily consists of a microcontroller, for example. The control unit 14 is configured to perform various processes related to lighting control by having the microcontroller's processor execute a program for lighting control. The control unit 14 then selects one scene from a plurality of scene information stored in the storage unit 13 based on a wireless signal received by the wireless communication unit 12, and controls the power supply unit 11 based on the selected scene information.

[0023] However, the lighting control system S1 according to the embodiment stores multiple scene information, including two types of information: lighting-related information and mode setting information, in the storage unit 13 of the lighting device A1. Then, based on a wireless signal received by the wireless communication unit 12, the lighting control system S1 according to the embodiment causes the control unit 14 to select one scene information from the multiple scene information stored in the storage unit 13. As a result, the lighting control system S1 according to the embodiment does not need to transmit switching of lighting states (including switching of scenes; the same applies hereinafter) and switching of control modes as separate control commands, thus improving convenience.

[0024] (2)Details Next, the lighting control system S1 according to the embodiment (hereinafter referred to as lighting control system S1) will be described in detail with reference to the drawings.

[0025] (2-1) System Configuration As shown in Figure 1, the lighting control system S1 includes multiple lighting devices A1, a sensor device B1, a communication device D1, a tablet C1, a handheld remote control C2, and the like.

[0026] Multiple lighting devices A1, sensor devices B1, and communication devices D1 are supplied with AC power from an external power source P1 via a two-wire power supply circuit P11. However, a switch device J1 is inserted into the power supply circuit P11. The switch device J1 is equipped with an operating handle J11 and is configured to switch the connection state between the external power source P1 and the power supply circuit P11 on / off each time the operating handle J11 is operated. In other words, when the switch device J1 is turned on, AC power is supplied from the external power source P1 via the power supply circuit P11, and the lighting control system S1 becomes operational. On the other hand, when the switch device J1 is turned off, AC power is not supplied from the external power source P1 via the power supply circuit P11, and the lighting control system S1 becomes inoperable.

[0027] (2-1-1) Lighting device The lighting device A1 includes a light source unit 10, a power supply unit 11, a wireless communication unit 12, a storage unit 13, and a control unit 14 (see Figure 2).

[0028] The light source unit 10 has, for example, an LED module configured by mounting multiple LEDs on a substrate. However, the light source units 10 in multiple lighting devices A1 may be of different types. For example, the light source unit 10 includes a light source unit 10 that emits monochromatic illumination light, a light source unit 10 whose color temperature of illumination light is variable, a light source unit 10 whose light color is variable, and a light source unit 10 whose illumination direction can be switched. The light source unit 10 whose color temperature of illumination light is variable has LED modules that emit illumination light of different color temperatures (for example, incandescent and daylight). The light source unit 10 whose light color is variable has LED modules that emit illumination light of different colors such as red light, green light, and blue light. Furthermore, the light source unit 10 whose illumination direction can be switched has, for example, an LED module that emits illumination light toward the floor and an LED module that emits illumination light toward the ceiling or wall.

[0029] The power supply unit 11 includes a power conversion circuit that converts AC power supplied from an external power supply P1 via a power supply line P11 into DC power, and a constant current circuit that operates to match the DC current supplied to the light source unit 10 to a target value. However, the power supply unit 11 may have multiple constant current circuits depending on the type of light source unit 10. That is, a power supply unit 11 paired with a light source unit 10 whose illumination light color temperature is variable has multiple constant current circuits that supply DC current individually to multiple LED modules with different color temperatures. Also, a power supply unit 11 paired with a light source unit 10 whose illumination light color is variable has multiple constant current circuits that supply individual DC current to LED modules with multiple light colors. Furthermore, a power supply unit 11 paired with a light source unit 10 whose irradiation direction can be switched has, for example, a constant current circuit that supplies DC current to an LED module that radiates illumination light toward the floor, and a constant current circuit that supplies DC current to an LED module that radiates illumination light toward the ceiling or wall.

[0030] The wireless communication unit 12 includes a wireless communication circuit, an antenna, and the like. The wireless communication circuit is an integrated circuit configured to perform wireless communication and mesh communication using radio waves, in accordance with wireless communication standards such as BLE (Bluetooth® low energy). However, the wireless communication circuit may be configured to perform wireless communication in accordance with wireless communication standards other than BLE, such as Wi-Fi®, ZigBee®, and 920MHz band low-power radio stations (for telecontrol). The wireless communication circuit is capable of transmitting and receiving wireless signals through the antenna.

[0031] The memory unit 13 has, for example, an electrically rewritable non-volatile semiconductor memory. The memory unit 13 stores multiple scene information. Each of the multiple scene information includes illumination-related information that specifies at least one of the following: illumination intensity, light color, and irradiation direction, and mode specification information that specifies one control mode from among multiple control modes. Here, the power supply unit 11 adjusts the amount of illumination light output by the light source unit 10 by adjusting the DC current supplied to the light source unit 10. The amount of illumination light is expressed by the dimming level of the light source unit 10. The dimming level is defined as the ratio of the light amount when the light amount when the rated current is flowed through the light source unit 10 is set to 100%. For example, a dimming level of 50% indicates that the light amount of the light source unit 10 is half the light amount when the rated current is flowed through it. The light color is defined by the color temperature when the color temperature of the illumination light from the light source unit 10 is variable. However, the illumination-related information that specifies the light color is indicated by the ratio of the light amounts of multiple types of LED modules with different color temperatures. Similarly, if the light color of the light source unit 10 is variable, the lighting information specifying the light color is indicated by the ratio of the light intensity of each LED module of each color. Furthermore, the lighting information specifying the irradiation direction of the light source unit 10 is indicated, for example, by a numerical value corresponding to the irradiation direction (0: downward, 1: upward, etc.).

[0032] The control unit 14 mainly consists of a microcontroller. The control unit 14 is configured to perform various processes related to lighting control by having the microcontroller's processor execute a program for lighting control. The control unit 14 then selects one scene from a plurality of scene information stored in the storage unit 13 based on a wireless signal received by the wireless communication unit 12, and controls the power supply unit 11 based on the selected scene information.

[0033] (2-1-2) Sensor device The sensor device B1 includes a brightness detection unit 20, a human detection unit 21, a sensor control unit 22, a wireless communication unit 23, a storage unit 24, and the like (see Figure 3).

[0034] The brightness detection unit 20 includes, for example, a photoelectric conversion element and a signal processing circuit that processes the output signal of the photoelectric conversion element. The brightness detection unit 20 detects reflected light from the floor or desk surface within the detection range as the amount of incident light, converts the detected amount of incident light into a voltage signal (brightness signal), and outputs it to the sensor control unit 22.

[0035] The human detection unit 21 has a passive sensor that detects heat rays (infrared rays) emitted from the human body, generally called a heat ray sensor or PIR (Passive Infrared) sensor. However, the human detection unit 21 may also have an active sensor that detects a person (moving object) by emitting radio waves (microwaves) and receiving the radio waves reflected by an antenna after they hit an object in space, thereby determining whether or not the object is moving. When the human detection unit 21 detects the presence of a person in the detection area, it outputs a human detection signal to the sensor control unit 22.

[0036] Alternatively, the brightness detection unit 20 and the person detection unit 21 may be configured to have a single image sensor, detect a person from the difference between the background image acquired by the image sensor and the current image, and also detect brightness from the acquired image.

[0037] The sensor control unit 22 primarily consists of a microcontroller. The sensor control unit 22 is configured to perform various processes related to sensor control by having the microcontroller's processor execute a program for sensor control.

[0038] The sensor control unit 22 compares the brightness (illuminance within the detection range) indicated by the brightness signal input from the brightness detection unit 20 with the brightness target value, and creates a control command necessary to keep the difference between the illuminance within the detection range and the brightness target value within a predetermined range. For example, if the difference between the illuminance within the detection range and the brightness target value is greater than the upper limit of the predetermined range, the sensor control unit 22 creates a control command to lower the dimming level in order to reduce the difference between the illuminance within the detection range and the brightness target value. Conversely, if the difference between the illuminance within the detection range and the brightness target value is smaller than the lower limit of the predetermined range, the sensor control unit 22 creates a control command to raise the dimming level in order to reduce the difference between the illuminance within the detection range and the brightness target value. The sensor control unit 22 passes the created control command to the wireless communication unit 23.

[0039] The wireless communication unit 23, like the wireless communication unit 12 of the lighting device A1, includes a wireless communication circuit, antenna, etc. The wireless communication circuit is an integrated circuit configured to perform wireless communication and mesh communication in accordance with the same wireless communication standards as the wireless communication circuit of the wireless communication unit 12. The wireless communication circuit can send and receive wireless signals through the antenna. The wireless communication unit 23 transmits messages, including control commands received from the sensor control unit 22, as wireless signals.

[0040] The memory unit 24 has, for example, an electrically rewritable non-volatile semiconductor memory. The memory unit 24 stores multiple scene information. However, each scene information stored by the memory unit 24 will have content that matches the scene information stored by the memory unit 13 of the lighting device A1. More specifically, each scene information stored by the memory unit 24 includes the same mode specification information as the mode specification information stored by the memory unit 13 of the lighting device A1, and information regarding the operation of the sensor device B1.

[0041] (2-1-3) Communication equipment The communication device D1 includes a clock unit 40, a schedule storage unit 41, a schedule control unit 42, a wireless communication unit 43, and the like (see Figure 4).

[0042] The clock unit 40 includes, for example, a real-time clock module. The real-time clock module is an integrated circuit configured to generate and output digital data including the time and date from a clock source. The clock unit 40 outputs the digital data of the time and date (hereinafter referred to as clock data) generated by the real-time clock module to the schedule control unit 42.

[0043] The schedule storage unit 41 has an electrically rewritable non-volatile semiconductor memory. The schedule storage unit 41 stores a schedule for lighting control. The schedule includes, for example, a combination of time zones and specification information that specifies scene information.

[0044] The schedule control unit 42 primarily consists of a microcontroller. The schedule control unit 42 is configured to perform various processes related to schedule control by having the microcontroller's processor execute a program for schedule control. The schedule control unit 42 refers to the clock data obtained from the clock unit 40 and the schedule stored in the schedule storage unit 41, and when the current time in the clock data matches the start time of the schedule, it creates a control command from the schedule specification information and passes it to the wireless communication unit 43.

[0045] The wireless communication unit 43, like the wireless communication unit 12 of the lighting device A1, includes a wireless communication circuit, an antenna, and the like. The wireless communication circuit is an integrated circuit configured to perform wireless communication and mesh communication in accordance with the same wireless communication standards as the wireless communication circuit of the wireless communication unit 12. The wireless communication circuit can send and receive wireless signals through the antenna. The wireless communication unit 43 transmits messages, including control commands received from the schedule control unit 42, via wireless signals.

[0046] Furthermore, if the microcontroller of the schedule control unit 42 is equipped with a real-time clock module, the clock function may be implemented using the real-time clock module of the microcontroller.

[0047] However, since the communication device D1 transmits control commands to the lighting device A1 using clock data as a trigger input, it can also play the role of a control device in the lighting control system S1.

[0048] (2-1-4) Tablet The tablet C1 is a portable computer system consisting of a System on a Chip (SoC), a touch panel display device C10, and other components housed in a rectangular, flat enclosure C11 (see Figure 1).

[0049] An SoC is a single-chip semiconductor device that incorporates a CPU (Central Processing Unit), GPU (Graphics Processing Unit), modem, and other components. A touch panel display device C10 is, for example, a touch panel liquid crystal display or a touch panel organic EL (Electro-Luminescence) display.

[0050] In the lighting control system S1, the tablet C1 acts as the control device 5 by having the SoC (CPU) execute a control program (application program). Furthermore, in the lighting control system S1, the tablet C1 acts as the setting device 3 by having the SoC (CPU) execute a schedule setting program (application program).

[0051] The control device 5 includes an input receiving unit 50, a control unit 51, and a wireless communication unit 52 (see Figure 5). The input receiving unit 50 is implemented by the touch panel of the tablet C1. The control unit 51 is implemented by the CPU of the tablet C1. The wireless communication unit 52 is implemented by the modem of the tablet C1. The wireless communication unit 52 is configured to perform wireless communication compliant with standards such as BLE and Wi-Fi (registered trademark).

[0052] The setting device 3 includes an input receiving unit 30, a wireless communication unit 31, and a creation unit 32 (see Figure 6). The input receiving unit 30 is implemented by the touch panel of the tablet C1. The creation unit 32 is implemented by the CPU of the tablet C1. The wireless communication unit 31 is implemented by the modem of the tablet C1. The wireless communication unit 31 is configured to perform wireless communication compliant with standards such as BLE and Wi-Fi (registered trademark).

[0053] In this embodiment, the control device 5 and the setting device 3 are implemented using the tablet C1, but the control device 5 and the setting device 3 may each be configured with dedicated hardware and software.

[0054] (2-1-5) Handheld remote control The handheld remote control C2 has a main body C20 made of a rectangular parallelepiped-shaped synthetic resin molded body (see Figure 1). The main body C20 is small enough for a person to hold in one hand. Multiple (six in the illustrated example) operation buttons C21 to C26 are provided on the front of the main body C20.

[0055] In the lighting control system S1, the handheld remote control C2 is assigned the role of the control device 5. Specifically, the handheld remote control C2 incorporates the input receiving unit 50, control unit 51, and wireless communication unit 52 that constitute the control device 5 into the main unit C20.

[0056] The input receiving unit 50 has six tact switches that correspond one-to-one with six operation buttons C21 to C26. These six tact switches are configured to turn on when the corresponding operation buttons C21 to C26 are pressed. In other words, the input receiving unit 50 is configured to receive operation inputs corresponding to each operation button C21 to C26 when the tact switches are turned on.

[0057] The control unit 51 mainly consists of a microcontroller. The control unit 51 is configured to perform various processes related to lighting control, such as scene selection and switching the lighting device A1 on and off, by having the microcontroller's processor execute a control program.

[0058] The wireless communication unit 52, like the wireless communication unit 12 of the lighting device A1, includes a wireless communication circuit, antenna, etc. The wireless communication circuit is an integrated circuit configured to perform wireless communication and mesh communication in accordance with the same wireless communication standards as the wireless communication circuit of the wireless communication unit 12. The wireless communication circuit can send and receive wireless signals through the antenna. The wireless communication unit 52 transmits messages, including control commands received from the control unit 51, as wireless signals.

[0059] (2-2) Mesh network in lighting control system The lighting control system S1 constructs a mesh network with each of the lighting device A1, sensor device B1, and communication device D1 acting as a communication terminal (node). Each node in the mesh network (lighting device A1, sensor device B1, and communication device D1) is assigned a unique network address.

[0060] In this embodiment, the mesh network NW1 forms a partially connected mesh network, as shown in Figure 7. The mesh network NW1 has multiple (four in the illustrated example) subnetworks SN1, SN2, SN3, and SN4. Each of these subnetworks SNi (i=1, 2, 3, 4) has one or more nodes Nij (j=1, 2, ...). Each of the multiple nodes Nij can communicate directly with other nodes Nij within its own subnetwork SNi, but cannot communicate directly with nodes Nij belonging to a different subnetwork SNi.

[0061] In each subnetwork SNi, one of several nodes Nij acts as the management node MNi. Each management node MNi can communicate directly with other nodes Nij within its own subnetwork SNi, and also with other management nodes MNi belonging to other subnetwork SNi. In other words, all nodes Nij belonging to each subnetwork SNi can communicate via the management node MNi of its own subnetwork SNi with all nodes Nij belonging to other subnetwork SNi.

[0062] Furthermore, one of the multiple management nodes MNi acts as the master unit. The master unit performs processes such as synchronizing all nodes Nij (including the management node MNi) belonging to the mesh network NW1, and broadcasting messages to the entire mesh network NW1.

[0063] (2-3) Grouping in lighting control systems As shown in Figure 8, a lighting control system S1 has one or more areas ARi (i=1, 2, ..., n). Each area ARi has one or more zones ZNij (j=1, 2, ...). Each zone ZNij contains multiple lighting devices A1 and, if necessary, one sensor device B1. However, a zone ZNij may contain only one lighting device A1, and may not contain a sensor device B1. Furthermore, the zoning of zones ZNij and areas ARi is independent of the topology of the mesh network NW1. For example, a single subnetwork SNi may contain multiple zones ZNij and areas ARi. Alternatively, multiple nodes Nij belonging to different subnetworks SNi may reside in a single zone ZNij. Note that a lighting control system S1 has at most one communication device D1, but the communication device D1 does not belong to any area ARi or any zone ZNij.

[0064] The lighting control system S1 assigns the communication device D1 the role of the master unit in the mesh network NW1. However, if the lighting control system S1 does not have the communication device D1, it may assign the role of the master unit to either the lighting device A1 or the sensor device B1.

[0065] The control device 5, implemented on tablet C1, can communicate with the management node MNi in the mesh network NW1 via BLE communication when the lighting control system S1 is in operation. The lighting control system S1 assigns the role of management node MNi to either the communication device D1, sensor device B1, or lighting device A1. Furthermore, the setting device 3, implemented on tablet C1, can communicate with all nodes (communication device D1, sensor device B1, lighting device A1) and the handheld remote control C2 (control device 5) via BLE communication.

[0066] The control device 5, implemented by the handheld remote control C2, can perform mesh communication with the nodes of the mesh network NW1 (communication device D1, lighting device A1, and sensor device B1) only when transmitting control commands. Furthermore, the control device 5, implemented by the handheld remote control C2, can perform BLE communication with the setting device 3, implemented by the tablet C1.

[0067] (2-4) Scene control in lighting control systems Each lighting device A1 in the lighting control system S1 stores multiple scene information in the storage unit 13. Each of the multiple scene information includes lighting-related information that specifies at least one of the following: illumination light intensity (dimming level), light color (color temperature, etc.), and irradiation direction, and mode specification information that specifies one control mode from among multiple control modes.

[0068] The multiple control modes include a sensor control mode in which the control unit 14 controls the power supply unit 11 of the lighting device A1 based on control commands (control commands based on detection results) transmitted wirelessly by the sensor device B1 and scene information, and a normal control mode in which the control unit 14 controls the power supply unit 11 based on scene information. In the normal control mode, the sensor device B1 does not need to perform detection operations.

[0069] Furthermore, the sensor control modes include a constant brightness mode, a human detection mode, and a brightness and human detection mode. The constant brightness mode is a mode in which the control unit 14 controls the power supply unit 11 to match the brightness detected by the sensor device B1 to a predetermined target value. The human detection mode is a mode in which the control unit 14 controls the power supply unit 11 in accordance with a control command based on the determination result of the presence or absence of a person by the sensor device B1. The brightness and human detection mode is a mode in which the control unit 14 controls the power supply unit 11 in accordance with the brightness detected by the sensor device B1 and a control command based on the determination result of the presence or absence of a person. Note that multiple scene information is assigned a unique scene number, and each scene information is identified by its scene number.

[0070] [Table 1]

[0071] Table 1 shows examples of scene information. For example, in zone ZNn1 of area ARn, the scene information for scene number 1 includes lighting-related information that sets the dimming level of the two lighting devices A1 to 80% and the light color to daylight, as well as mode specification information that sets sensor device B1 and the two lighting devices A1 to normal control mode. The scene information for scene number 2 does not include the dimming level of the two lighting devices A1 in the scene information, but includes lighting-related information that sets the light color to neutral white, and mode specification information that sets sensor device B1 and the two lighting devices A1 to sensor control mode (constant brightness mode). Similarly, the scene information for scene numbers 3 to 7 includes the lighting-related information and mode specification information shown in Table 1, respectively. However, the examples shown in Table 1 are just examples of scene information, and depending on the type of lighting device A1 belonging to each area ARi and each zone ZNij, there may be no light color (color tuning) item, or there may be an item for illumination direction (upward, downward).

[0072] Incidentally, the scene information described above is created by the setting device 3 implemented on tablet C1 and set on each lighting device A1. However, for sensor device B1, instead of lighting-related information, information regarding the operation of sensor device B1 is set as scene information. Furthermore, for multiple lighting devices A1 and sensor devices B1 belonging to a single zone ZNij, the same scene information with the same scene number is set with the same mode specification information.

[0073] The setting device 3 receives operation inputs related to lighting information and mode specification information, specifically operation inputs indicating dimming level, light color, irradiation direction, etc., and operation inputs to select a control mode, via the input reception unit 30 (touch panel of tablet C1). In response to the operation inputs received by the input reception unit 30, the setting device 3 creates scene information including lighting information and mode specification information using the creation unit 32 (CPU of tablet C1). The setting device 3 transmits a wireless signal containing the scene information created by the creation unit 32 to any management node MNi (sensor device B1 and lighting device A1). The management node MNi that receives the wireless signal transmits the message (scene information) contained in the wireless signal to the destination node Nij (sensor device B1 and lighting device A1) via mesh communication. Then, by repeating the transmission of wireless signals containing scene information via BLE communication and mesh communication, the scene information created by the setting device 3 is set to all necessary nodes Nij (lighting device A1, sensor device B1) in the lighting control system S1. The setting device 3 accepts scene information settings on a zone-by-zone basis at the input reception unit 30, and automatically transmits a wireless signal containing the scene information via BLE communication to the management node MNi, but only for the nodes Nij where scene information settings are required. Therefore, operation input for setting scene information to the setting device 3 can be performed on a zone-by-zone or area-by-area basis.

[0074] Here, the creation unit 32 of the setting device 3 determines whether the combination of lighting-related information and mode specification information in the scene information created in response to the operation input violates a predetermined rule. The predetermined rule is that it must function as actual lighting control. For example, if the illumination direction is set to upward as the lighting-related information and the sensor control mode (constant brightness mode) is selected as the mode specification information, the illumination light emitted from the lighting device A1 will hardly reach the floor or the desk surface, so it is considered that the lighting control does not function and violates the predetermined rule.

[0075] The creation unit 32 causes the wireless communication unit 31 to transmit scene information if the combination of lighting-related information and mode specification information does not violate predetermined rules, and does not transmit scene information from the wireless communication unit 31 if the combination violates the rules. As a result, the lighting control system S1 can prevent the setting device 3 from incorrectly creating scene information (scene information that violates predetermined rules) and setting it in the lighting device A1.

[0076] Furthermore, the setting device 3 can set different control contents for each of the multiple (6) operation buttons C21 to C26 on the handheld remote control C2. For example, the setting device 3 can set control contents to select four different scene information (scene information with scene numbers 1 to 4) for the four operation buttons C21 to C24 of the handheld remote control C2, and set control contents to turn off one operation button C25 and turn on the remaining operation button C26.

[0077] The handheld remote control C2 (control device 5) stores the control contents set by the setting device 3 for multiple operation buttons C21 to C26 in the built-in memory of the microcontroller that constitutes the control unit 51.

[0078] The handheld remote control C2 (control device 5) receives operation inputs (equivalent to trigger inputs) corresponding to operation buttons C21 to C26 when operation buttons C21 to C26 are pressed, and these inputs are received by the input receiving unit 50. For example, when the input receiving unit 50 receives an operation input corresponding to operation button C21, the control unit 51 reads the control content for selecting scene information for scene number 1 from the built-in memory and transmits the read control content (a control command to select scene information for scene number 1) via mesh communication to a nearby node (for example, sensor device B1 in area AR1).

[0079] Upon receiving a control command transmitted from the handheld remote control C2 (control device 5), sensor device B1 confirms the destination of the received control command and performs mesh communication to transmit the wireless signal (a wireless signal including the control command) to all nodes Nij belonging to the destination. For example, if the destination is all nodes belonging to area AR1, the wireless signal is transmitted to all nodes Nij belonging to area AR1 (a total of 16 lighting devices A1 and 2 sensor devices B1) (see Figure 8). In this case, the destination of the wireless signal is set to mean all nodes Nij belonging to area AR1.

[0080] In each lighting device A1 that receives a wireless signal, if the destination of the wireless signal is either to its own group or to itself, the control unit 14 reads scene information for scene number 1 from the storage unit 13 based on the control command received from the wireless communication unit 12. Then, the control unit 14 controls the power supply unit 11 based on the scene information for scene number 1 that it has read, thereby dimming the light source unit 10 to a dimming level of 80% and adjusting the color of the light source unit 10 to daylight color.

[0081] When controlling a scene using tablet C1 (control device 5), the input receiving unit 50 receives the operation input for scene selection and transmits a control command including the scene number corresponding to the received operation input to an arbitrary management node MNi (for example, sensor device B1 in area AR1) via BLE communication. The management node MNi, upon receiving the wireless signal transmitted from tablet C1, checks the destination of the received wireless signal and performs mesh communication so that the wireless signal (wireless signal including control command) is transmitted to all nodes Nij belonging to the destination. For example, if the destination is all nodes belonging to area AR1, the wireless signal is transmitted to all nodes Nij belonging to area AR1 (a total of 16 lighting devices A1 and 2 sensor devices B1) (see Figure 8). In this case, the destination of the wireless signal is set to mean all nodes Nij belonging to area AR1.

[0082] (2-5) Sensor control in lighting control systems Next, we will explain the operation of the lighting control system S1 when scene information for which a sensor control mode is specified is selected.

[0083] For example, consider a scenario where a control command is sent from the control device 5 (tablet C1 or handheld remote control C2) to two lighting devices A1 and one sensor device B1 belonging to zone ZNn1 of area ARn, instructing them to select scene information for scene number 2. As shown in Table 1, the scene information for scene number 2 includes lighting-related information that sets the light color to daylight white without changing the dimming levels of the two lighting devices A1, and mode specification information that sets sensor device B1 and the two lighting devices A1 to sensor control mode (constant brightness mode).

[0084] In the control device 5, the input receiving unit 50 receives an operation input to select scene information for scene number 2 (Figure 9 [1]). Based on the operation input received by the input receiving unit 50, the control unit 51 of the control device 5 creates a control command to select scene information for scene number 2 (Figure 9 [2]). The control unit 51 passes the created control command to the wireless communication unit 52. The wireless communication unit 52 transmits a message containing the control command received from the control unit 51 to an arbitrary management node MNi (for example, sensor device B1) via BLE communication (Figure 9 [3]).

[0085] When the sensor device B1 receives a message transmitted from the control device 5 via the wireless communication unit 23, it transmits the received message to the two lighting devices A1 via mesh communication (Figure 9 [4]).

[0086] The two lighting devices A1 receive messages transmitted from the sensor device B1 via the wireless communication unit 12. The control units 14 of the two lighting devices A1 read the scene information for scene number 2, as indicated by the received message, from the storage unit 13. Based on the read scene information, the control unit 14 controls the power supply unit 11 to set the color of the illumination light to daylight white (Figure 9 [5]).

[0087] Meanwhile, after sending messages to the two lighting devices A1, the sensor control unit 22 of the sensor device B1 reads the scene information for scene number 2, as instructed by the message received from the control device 5, from the storage unit 24. Since the scene information for scene number 2 specifies a constant brightness sensor control mode as mode specification information, the sensor control unit 22 operates the brightness detection unit 20 to detect (measure) the brightness (illuminance) of the area to be detected (Figure 9 [6]). The sensor control unit 22 compares the brightness (brightness signal) detected by the brightness detection unit 20 with the target value (reference voltage value). Then, the sensor control unit 22 creates a message (control command) to adjust the dimming level so as to reduce the difference between the detected brightness and the target value. The sensor control unit 22 transmits the created message (control command) to the two lighting devices A1 via mesh communication from the wireless communication unit 23 (Figure 9 [7]).

[0088] The two lighting devices A1 receive messages transmitted from the sensor device B1 via the wireless communication unit 12. The control units 14 of the two lighting devices A1 control the power supply unit 11 to increase or decrease the dimming level of the lighting light based on the received messages (control commands) (Figure 9 [8]).

[0089] After the sensor device B1 sends a message to the two lighting devices A1, it operates the brightness detection unit 20 again to detect (measure) the brightness (illuminance) of the area to be detected (Figure 9 [9]). The sensor control unit 22 compares the brightness (brightness signal) detected by the brightness detection unit 20 with a target value (reference voltage value), and if the difference between the two is not within a predetermined range, it creates a message (control command) to adjust the dimming level to reduce the difference. On the other hand, if the difference between the two is within a predetermined range, the sensor control unit 22 creates a message (control command) to maintain the current dimming level. The sensor control unit 22 transmits the created message (control command) to the two lighting devices A1 via mesh communication from the wireless communication unit 23 (Figure 9

[10] ).

[0090] Subsequently, sensor control is repeatedly performed using the sensor device B1 to control the two lighting devices A1 so that the difference between the brightness detected by the brightness detection unit 20 and the target value is kept within a predetermined range.

[0091] Furthermore, if the human detection mode is selected instead of the constant brightness mode for sensor control, the sensor control unit 22 of sensor device B1 controls lighting device A1 to lower the dimming level when the human detection unit 21 does not detect a person, and controls lighting device A1 to raise the dimming level when the human detection unit 21 detects a person. Furthermore, the sensor control unit 22 of sensor device B1 does not instruct lighting device A1 to lower the dimming level until a certain period of time has elapsed since the human detection unit 21 stopped detecting a person, and if the human detection unit 21 does not detect a person within that period of time, it controls lighting device A1 to lower the dimming level.

[0092] Furthermore, if a mode combining brightness detection and human detection is selected as the sensor control, the sensor control unit 22 of the sensor device B1 controls the lighting device A1 to increase the dimming level when the human detection unit 21 detects a person. In addition, the sensor control unit 22 controls the lighting device A1 to keep the difference between the detection result (brightness) of the brightness detection unit 20 and the target value within a predetermined range when a person is detected (including the time until a certain period of time has elapsed since human detection stopped).

[0093] However, the lighting control system S1 stores multiple scene information, including two types of information—lighting-related information and mode setting information—in the storage unit 13 of the lighting device A1. Based on the wireless signal received by the wireless communication unit 12, the lighting control system S1 instructs the control unit 14 to select one scene from the multiple scene information stored in the storage unit 13, and then controls the power supply unit 11 based on the selected scene information. Therefore, the lighting control system S1 does not need to transmit switching of lighting states (including switching of scenes) and switching of control modes as separate control commands, thus improving convenience.

[0094] Furthermore, since the lighting control system S1 also stores information regarding the sensor control mode and sensor operation as scene information in the memory unit 24 of the sensor device B1, by having the wireless communication unit 23 of the sensor device B1 receive the wireless signal received by the wireless communication unit 12 of the lighting device A1, the switching of the control mode (normal control mode and sensor control mode) in the sensor device B1 can be performed together with the switching of the scene in the lighting device A1. As a result, the lighting control system S1 can achieve further improvements in convenience.

[0095] Furthermore, the lighting control system S1 uses scene numbers assigned to multiple scene information as control commands for selecting scene information, thereby shortening messages in wireless communication (BLE communication, mesh communication) and suppressing wireless communication congestion.

[0096] Furthermore, the lighting control system S1 can save energy by increasing or decreasing the dimming level of the lighting device A1 according to the brightness of the illuminated space and the presence or absence of people in the illuminated space, thereby preventing the illuminated space from becoming unnecessarily bright while maintaining comfort.

[0097] (2-6) Schedule control in lighting control systems Next, we will explain the operation of schedule control by the communication device D1 in the lighting control system S1.

[0098] As an example, let's assume that the schedule storage unit 41 of the communication device D1 stores a schedule that sequentially selects scene information for scene number 2 from 9:00 AM to 10:00 AM, and scene information for scene number 3 from 10:00 AM to 1:00 PM, and we will explain the case of controlling zone ZNn1.

[0099] In the communication device D1, the schedule control unit 42 refers to the clock data obtained from the clock unit 40 and the schedule stored in the schedule storage unit 41, and when the current time in the clock data matches 9:00 AM, it passes the schedule specification information (scene number 2) to the wireless communication unit 43 (Figure 10 [1]). The wireless communication unit 43 of the communication device D1 transmits a message containing the specification information received from the schedule control unit 42 to the sensor device B1 and the two lighting devices A1 via mesh communication (Figure 10 [2]).

[0100] The two lighting devices A1 receive messages transmitted from the communication device D1 via the wireless communication unit 12. The control units 14 of the two lighting devices A1 read the scene information for scene number 2, as indicated by the received message, from the storage unit 13. Based on the read scene information, the control unit 14 controls the power supply unit 11 to set the color of the illumination light to daylight white (Figure 10 [3]).

[0101] Meanwhile, the sensor control unit 22 of the sensor device B1 reads scene information for scene number 2, as instructed by the message received from the communication device D1, from the storage unit 24. Since the scene information for scene number 2 specifies a constant brightness sensor control mode as mode specification information, the sensor control unit 22 operates the brightness detection unit 20 to detect (measure) the brightness (illuminance) of the detection target area (Figure 10 [4]). The sensor control unit 22 compares the brightness (voltage value) detected by the brightness detection unit 20 with the target value (reference voltage value). Then, the sensor control unit 22 creates a message (control command) to adjust the dimming level so as to reduce the difference between the detected brightness and the target value. The sensor control unit 22 transmits the created message (control command) to the communication device D1 via mesh communication from the wireless communication unit 23 (Figure 10 [5]).

[0102] Communication device D1 receives a message (control command) from sensor device B1 and transmits a message containing the control command from sensor device B1 to the two lighting devices A1 at an appropriate time (Figure 10 [6]).

[0103] The two lighting devices A1 receive messages transmitted from the communication device D1 via the wireless communication unit 12. The control units 14 of the two lighting devices A1 control the power supply unit 11 to increase or decrease the dimming level of the lighting light based on the received messages (control commands) (Figure 10 [7]).

[0104] Subsequently, sensor control is repeatedly performed using the sensor device B1 to control the two lighting devices A1 so that the difference between the brightness detected by the brightness detection unit 20 and the target value is kept within a predetermined range.

[0105] The schedule control unit 42 passes the schedule specification information (scene number 3) to the wireless communication unit 43 when the current time obtained from the clock unit 40 matches 10:00 AM (Figure 10 [8]). The wireless communication unit 43 of the communication device D1 transmits a message containing the specification information received from the schedule control unit 42 to the sensor device B1 and the two lighting devices A1 via mesh communication (Figure 10 [9]).

[0106] The two lighting devices A1 receive messages transmitted from the communication device D1 via the wireless communication unit 12. The control units 14 of the two lighting devices A1 read the scene information for scene number 3, as indicated by the received message, from the storage unit 13. Based on the read scene information, the control unit 14 controls the power supply unit 11 to set the dimming level of the illumination light to 60% and the color of the illumination light to white (

[10] in Figure 10).

[0107] Meanwhile, the sensor control unit 22 of the sensor device B1 reads the scene information for scene number 3, as instructed by the message received from the communication device D1, from the storage unit 24. Since the normal control mode is specified as the mode specification information in the scene information for scene number 3, the sensor control unit 22 stops brightness detection by the brightness detection unit 20 (

[11] in Figure 10).

[0108] As described above, the lighting control system S1 performs schedule control by the communication device D1 based on a predetermined schedule, thus eliminating the need for human operation and improving ease of use. Furthermore, when the constant brightness sensor control mode is running, the control unit 14 of each lighting device A1 accepts only commands related to constant brightness control as sensor control commands, and does not accept any other commands related to sensor control. Similarly, when the human detection sensor control mode is running, the control unit 14 of each lighting device A1 accepts only commands related to human detection control as sensor control commands, and does not accept any other commands related to sensor control.

[0109] (3) Modified lighting control system Next, several modifications of the lighting control system S1 according to the embodiment will be described. However, the basic configuration of the lighting control system S1 of each modification described below is the same as the basic configuration of the lighting control system S1 according to the embodiment. Therefore, components that are common to or substantially common with the basic configuration of the lighting control system S1 according to the embodiment will be denoted by the same reference numerals, and their illustration and description will be omitted as appropriate. In the following description, "substantially common components" means components that differ slightly in shape, size, etc., but have the same function.

[0110] (3-1) Variation 1 The lighting control system S1 of the modified example 1 is characterized by including a priority order for multiple control devices 5 (tablet C1 and handheld remote control C2) in the control command, and prioritizing the execution of control commands with relatively higher priority by the control unit 14 of the lighting device A1.

[0111] For example, if the normal control mode is set in the mode specification information included in the scene information, the priority in the normal control mode is also set in the mode specification information. Specifically, tablet C1 is assigned the highest priority, and handheld remote control C2 is assigned the second highest priority.

[0112] For example, if scene information for scene number 1 is selected and lighting device A1 is controlled in normal control mode, the control unit 14 of lighting device A1 discards the control command received from the handheld remote control C2 (control device 5) without executing it, and executes the control command received from the tablet C1 (control device 5).

[0113] However, the lighting control system S1 of Modified Example 1 sets priorities for multiple control devices 5 and prioritizes the execution of control commands from the control device 5 with a relatively higher priority, thereby preventing accidental switching to other scene information during normal control mode. As a result, the lighting control system S1 of Modified Example 1 can achieve further improvements in convenience.

[0114] (3-2) Modification 2 For example, if a lighting control system S1 is installed in an office building or commercial facility, the switch device J1 may be turned on and the lighting control system S1 may operate only during working hours and business hours, and the switch device J1 may be turned off and the lighting control system S1 may stop outside of working hours and business hours. In this case, when the switch device J1 is turned on and the lighting control system S1 is started, it is undesirable for lighting devices A1 in multiple areas AR1 to ARn to be turned on simultaneously at different dimming levels and different light colors.

[0115] Therefore, the lighting control system S1 of Modified Example 2 sets special scene information to be executed at startup as scene number 0 for each lighting device A1, and by selecting the scene information of scene number 0 at startup, lighting devices A1 in multiple areas AR1 to ARn are simultaneously illuminated at the same dimming level (e.g., 100%) and the same light color (e.g., daylight white). As a result, the lighting control system S1 of Modified Example 2 can unify the lighting control at startup, making it less likely to cause any sense of incongruity.

[0116] Here, even if all lighting devices A1 are controlled with common scene information (dimming level: 100%, light color: daylight white) immediately after startup, appropriate scene information is selected and executed for each of the multiple areas ARi and multiple zones ZNij after startup.

[0117] Consequently, the setting device 3 must create scene information for the moment immediately after startup as scene information with scene number 0, separate from the scene information selected during operation, except immediately after startup of the lighting control system S1, and set this in each lighting device A1.

[0118] Therefore, in the modified example 2, the lighting control system S1 stores in the storage unit 13 of the lighting device A1 the scene information received by the wireless communication unit 12 of the lighting device A1 from the setting device 3, the scene information including lighting-related information and mode specification information, and new scene information in which the mode specification information included in the scene information is replaced with the normal control mode. In other words, the control unit 14 of the lighting device A1 in the modified example 2 automatically creates scene information immediately after startup (scene information with scene number 0) from the scene information after startup and stores it in the storage unit 13.

[0119] However, as described above, the lighting control system S1 of Modified Example 2 creates another scene information (scene information selected immediately after startup) from one scene information, eliminating the need for the setting device 3 to create and transmit the two scene information separately. As a result, the lighting control system S1 of Modified Example 2 can be made more user-friendly. However, in the lighting control system S1 of Modified Example 2, the other scene information automatically created from one scene information may be scene information other than the scene information selected immediately after startup.

[0120] (3-3) Modified example 3 The lighting control system S1 of the modified example 3 is characterized in that, in sensor control mode, it receives detection results from sensor device B1 to communication device D1 via wireless communication, and transmits lighting control commands based on the detection results from communication device D1 to lighting device A1 via wireless communication.

[0121] In the lighting control system S1 of the modified example 3, the operation of sensor control by the communication device D1 will be explained.

[0122] In the communication device D1, the schedule control unit 42 refers to the clock data obtained from the clock unit 40 and the schedule stored in the schedule storage unit 41, and when the current time in the clock data matches 9:00 AM, it passes the schedule specification information (scene number 2) to the wireless communication unit 43 (Figure 11 [1]). The wireless communication unit 43 of the communication device D1 transmits a message containing the specification information received from the schedule control unit 42 to the sensor device B1 and the two lighting devices A1 via mesh communication (Figure 11 [2]). The communication device D1 also periodically transmits the same message (a message containing the currently selected schedule number) even if there is no change in the schedule (Figure 11 [9]).

[0123] The two lighting devices A1 receive messages transmitted from the communication device D1 via the wireless communication unit 12. The control units 14 of the two lighting devices A1 read the scene information for scene number 2, as indicated by the received message, from the storage unit 13 (see Table 1). Based on the read scene information, the control unit 14 controls the power supply unit 11 to set the color of the illumination light to daylight white (Figure 11 [3]).

[0124] Meanwhile, the sensor control unit 22 of the sensor device B1 reads scene information for scene number 2, as instructed by the message received from the communication device D1, from the storage unit 24. Since the scene information for scene number 2 specifies a constant brightness sensor control mode as mode specification information, the sensor control unit 22 operates the brightness detection unit 20 to detect (measure) the brightness (illuminance) of the area to be detected (Figure 11 [4]). The sensor control unit 22 passes a message containing the brightness (voltage value) detected by the brightness detection unit 20 to the wireless communication unit 23. The wireless communication unit 23 transmits the received message to the communication device D1 via mesh communication (Figure 11 [5]).

[0125] Communication device D1 receives messages transmitted from sensor device B1 via wireless communication unit 43. The schedule control unit 42 of communication device D1 obtains the detection result (brightness voltage value) from sensor device B1 from the messages received by wireless communication unit 43 and compares the obtained voltage value with a target value (reference voltage value). The schedule control unit 42 then creates a message (control command) to adjust the dimming level to reduce the difference between the detected brightness and the target value (Figure 11 [6]). The wireless communication unit 43 transmits the message (control command) created by the schedule control unit 42 to the two lighting devices A1 via mesh communication (Figure 11 [7]).

[0126] The two lighting devices A1 receive messages transmitted from the communication device D1 via the wireless communication unit 12. The control units 14 of the two lighting devices A1 control the power supply unit 11 to increase or decrease the dimming level of the lighting light based on the received messages (control commands) (Figure 11 [8]).

[0127] Furthermore, even if there are no changes to the schedule, communication device D1 periodically sends the same message (a message including the currently selected schedule number) (Figure 11 [9]).

[0128] The two lighting devices A1 receive messages transmitted from the communication device D1 via the wireless communication unit 12. The control units 14 of the two lighting devices A1 determine whether the scene number indicated in the received message matches the currently selected scene number. If they match, the lighting status is not changed.

[0129] Sensor device B1 receives a message transmitted from communication device D1 via wireless communication unit 23. Sensor control unit 22 of sensor device B1 operates brightness detection unit 20 to detect (measure) the brightness (illuminance) of the area to be detected (Figure 11

[10] ). Sensor control unit 22 passes a message containing the brightness (voltage value) detected by brightness detection unit 20 to wireless communication unit 23. Wireless communication unit 23 transmits the received message to communication device D1 via mesh communication (Figure 11

[11] ).

[0130] Subsequently, sensor control is repeatedly performed by the communication device D1 to control the two lighting devices A1 so that the difference between the brightness detected by the brightness detection unit 20 and the target value is kept within a predetermined range.

[0131] However, in the modified example 3, the lighting control system S1 performs sensor control to control the lighting device A1 using the communication device D1, thus reducing the processing load of sensor control in the sensor device B1.

[0132] (3-4) Modification 4 The lighting control system S1 of the modified example 4 is characterized in that, in sensor control mode, the sensor device B1 transmits detection results to each lighting device A1 via wireless communication, and the control unit 14 of each lighting device A1 that receives the detection results controls the power supply unit 11 based on the detection results.

[0133] For example, when performing constant brightness control as a sensor control, a wireless signal containing the detection result (brightness signal) is transmitted from the sensor device B1 to each lighting device A1. Each lighting device A1 receives the wireless signal transmitted from the sensor device B1 with the wireless communication unit 12 and passes the brightness signal included in the wireless signal to the control unit 14. The control unit 14 controls the power supply unit 11 so that the difference between the brightness indicated by the brightness signal and the target value is kept within a predetermined range.

[0134] However, in the modified example 4, the lighting control system S1 controls the power supply unit 11 based on the brightness detection result by the control unit 14 of the lighting device A1, thereby reducing the processing load on the sensor control unit 22.

[0135] (3-5) Modification 5 In Modified Example 5, the control unit 14 of the lighting device A1, while in normal control mode, does not accept the control command transmitted by the sensor device B1 and does not change the lighting state (does not change the current supplied from the power supply unit 11 to the light source unit 10) because it is not in sensor control mode. Also, in Modified Example 5, while in constant brightness sensor control mode, the control unit 14 of the lighting device A1 only accepts the constant brightness sensor control command transmitted by the sensor device B1 and does not accept other control commands (control commands for the control device 5, control commands for human detection sensor control transmitted by the sensor device B1, etc.). Similarly, in Modified Example 5, while in human detection sensor control mode, the control unit 14 of the lighting device A1 only accepts the human detection sensor control command transmitted by the sensor device B1 and does not accept other control commands (control commands for the control device 5, control commands for constant brightness sensor control transmitted by the sensor device B1, etc.). However, in Modification 5, the control unit 14 of the lighting device A1 receives control commands (control commands specifying scene information) transmitted by the communication device D1, regardless of which control mode is being executed.

[0136] However, the lighting control system S1 of modified example 5 can improve usability by setting priority levels for the source of control commands in multiple control modes as described above, thereby preventing the currently running control mode from being unintentionally interrupted or changed.

[0137] (4) Lighting control method and program according to the embodiment The lighting control method according to the embodiment stores multiple scene pieces of information in the storage unit 13 of the lighting device A1. Furthermore, the lighting control method according to the embodiment causes the control unit 14 of the lighting device A1 to control the power supply unit 11 based on one scene piece of information selected from the multiple scene pieces of information stored in the storage unit 13. Each of the multiple scene pieces of information includes lighting-related information that specifies at least one of the following: illumination light intensity, light color, and irradiation direction, and mode specification information that specifies one control mode from among multiple control modes.

[0138] However, the lighting control method according to this embodiment does not require the switching of the lighting state and the switching of the control mode to be transmitted as separate control commands, thus improving convenience.

[0139] Furthermore, the program according to the embodiment is a computer program for causing a computer system to execute the lighting control method according to the embodiment. The computer system in the embodiment can be realized by a microcontroller that constitutes the control unit 14 of the lighting device A1.

[0140] However, the program according to this embodiment does not require the switching of the lighting state and the switching of the control mode to be transmitted as separate control commands, thus improving convenience.

[0141] (5) Summary A lighting control system (S1) according to a first aspect of the present disclosure comprises one or more lighting devices (A1) and a sensor device (B1) that detects one or more physical quantities in the lighting space of the lighting device (A1). The lighting device (A1) includes a light source unit (10) that irradiates lighting light into the lighting space, a power supply unit (11) that supplies power to the light source unit (10), and a wireless communication unit (12) that receives wireless signals. The lighting device (A1) includes a storage unit (13) that stores a plurality of scene information and a control unit (14) that selects one scene information from the plurality of scene information stored in the storage unit (13) based on a wireless signal and controls the power supply unit (11) based on the selected scene information. Each of the plurality of scene information includes lighting-related information that specifies at least one of the intensity of the lighting light, the color of the light, and the direction of irradiation, and mode-specifying information that specifies one control mode from among a plurality of control modes.

[0142] The lighting control system (S1) according to the first embodiment stores multiple scene information, including two types of information: lighting-related information and mode setting information, in the storage unit (13) of the lighting device (A1). The lighting control system (S1) according to the first embodiment then causes the control unit (14) to select one scene information from the multiple scene information stored in the storage unit (13) based on a wireless signal received by the wireless communication unit (12), and then controls the power supply unit (11) based on the selected scene information. As a result, the lighting control system (S1) according to the first embodiment does not need to transmit switching of lighting states and switching of control modes as separate control commands, thus improving convenience.

[0143] A lighting control system (S1) according to a second aspect of this disclosure can be realized by combining it with the first aspect. In the lighting control system (S1) according to the second aspect, the sensor device (B1) includes a wireless communication unit (23) that transmits and receives wireless signals, a storage unit (24) that stores a plurality of scene information, and a sensor control unit (22) that controls the wireless communication unit (23) to transmit detection results of physical quantities or control commands based on the detection results as wireless signals. Preferably, the plurality of control modes include a sensor control mode that controls the power supply unit (11) based on detection results or control commands based on the detection results and scene information transmitted by the sensor device (B1) as wireless signals, and a normal control mode that controls the power supply unit (11) based on scene information.

[0144] In the second embodiment of the lighting control system (S1), multiple scene information is also stored in the memory unit (24) of the sensor device (B1). By having the wireless communication unit (23) of the sensor device (B1) receive the wireless signal received by the wireless communication unit (12) of the lighting device (A1), the switching of the control mode (normal control mode and sensor control mode) in the sensor device (B1) can be performed together with the switching of the scene in the lighting device (A1). As a result, the lighting control system (S1) in the second embodiment can achieve further improvements in convenience.

[0145] A lighting control system (S1) according to a third aspect of this disclosure can be realized in combination with the second aspect. In the lighting control system according to the third aspect, the sensor device (B1) preferably detects the brightness of the illuminated space as a physical quantity. The sensor control mode is preferably a mode in which the power supply unit (11) is controlled so that the brightness detected by the sensor device (B1) matches a predetermined target value.

[0146] The lighting control system (S1) according to the third embodiment can save energy by increasing or decreasing the light output of the lighting device (A1) according to the brightness of the illuminated space, thereby preventing the illuminated space from becoming unnecessarily bright while maintaining comfort.

[0147] A lighting control system (S1) according to a fourth aspect of this disclosure can be realized in combination with a second or third aspect. In the lighting control system (S1) according to the fourth aspect, the sensor device (B1) preferably determines the presence or absence of a person in the illuminated space by detecting heat rays emitted from the human body as a physical quantity. The sensor control mode is preferably a mode in which the power supply unit (11) is controlled according to the result of the determination of the presence or absence of a person by the sensor device (B1).

[0148] The lighting control system (S1) according to the fourth embodiment can save energy by increasing or decreasing the light output of the lighting device (A1) according to the presence or absence of people in the illuminated space, thereby preventing the illuminated space from becoming unnecessarily bright while maintaining comfort.

[0149] A lighting control system (S1) according to a fifth aspect of this disclosure can be realized in combination with any of the second to fourth aspects. In the lighting control system (S1) according to the fifth aspect, the sensor device (B1) preferably detects the brightness of the illuminated space as a physical quantity and detects the heat rays emitted from the human body as a physical quantity to determine the presence or absence of a person in the illuminated space. The sensor control mode is preferably a mode in which the power supply unit (11) is controlled based on the brightness detected by the sensor device (B1) and the determination result of the presence or absence of a person.

[0150] The fifth aspect of the lighting control system (S1) can save energy by increasing or decreasing the dimming level of the lighting device (A1) according to the brightness of the illuminated space and the presence or absence of people in the illuminated space, thereby preventing the illuminated space from becoming unnecessarily bright while maintaining comfort.

[0151] A lighting control system (S1) according to a sixth aspect of the present disclosure can be realized in combination with any of the second to fifth aspects. The lighting control system (S1) according to the sixth aspect preferably further comprises a plurality of control devices (5) that can communicate wirelessly with a lighting device (A1). Each of the plurality of control devices (5) preferably transmits control commands in normal control mode to the lighting device (A1). The lighting device (A1) is preferably configured to cause a control unit (14) to control a power supply unit (11) in response to a control command. The control command preferably includes a priority order for the plurality of control devices (5). The control unit (14) preferably executes control commands with relatively higher priority preferentially.

[0152] The lighting control system (S1) according to the sixth embodiment can prevent accidental switching to other scene information while the normal control mode is running, thereby further improving convenience.

[0153] A lighting control system (S1) according to a seventh aspect of the present disclosure can be realized in combination with any of the second to sixth aspects. The lighting control system (S1) according to the seventh aspect preferably further comprises a setting device (3) that can be wirelessly communicated with a lighting device (A1). The setting device (3) is preferably configured to create scene information and transmit the created scene information to the lighting device (A1) by wireless communication. The lighting device (A1) preferably receives the scene information transmitted from the setting device (3) with a wireless communication unit (12) and stores the scene information received by the wireless communication unit (12) in a storage unit (13).

[0154] The lighting control system (S1) according to the seventh embodiment stores scene information created by the setting device (3) in the storage unit (13) of the lighting device (A1) via wireless communication, so that scene information can be set for multiple lighting devices (A1) at once. As a result, the lighting control system (S1) according to the seventh embodiment can achieve further improvements in convenience.

[0155] A lighting control system (S1) according to an eighth aspect of this disclosure can be realized in combination with a seventh aspect. In the lighting control system (S1) according to the eighth aspect, the setting device (3) preferably has an input receiving unit (30) that receives operation inputs relating to at least one of lighting-related information and mode specification information. The setting device (3) preferably has a creation unit (32) that creates scene information including at least one of lighting-related information and mode specification information in response to operation inputs received by the input receiving unit (30). The creation unit (32) preferably transmits the scene information to the lighting device (A1) if the combination of lighting-related information and mode specification information in the scene information created in response to the operation input does not violate a predetermined rule. The creation unit (32) preferably does not transmit the scene information to the lighting device (A1) if the combination violates a rule.

[0156] The lighting control system (S1) according to the eighth embodiment can prevent scene information (scene information that violates predetermined rules) that has been erroneously created by the setting device (3) from being set in the lighting device (A1).

[0157] A lighting control system (S1) according to the ninth aspect of this disclosure can be realized in combination with the seventh or eighth aspect. In the lighting control system (S1) according to the ninth aspect, it is preferable that the storage unit (13) stores scene information including lighting-related information and mode specification information, and new scene information obtained by replacing the mode specification information included in the scene information with a normal control mode, with respect to the scene information received by the wireless communication unit (12) from the setting device (3).

[0158] The lighting control system (S1) according to the ninth embodiment eliminates the need for the setting device (3) to create and transmit two separate pieces of scene information, thereby improving ease of use.

[0159] A lighting control system (S1) according to a tenth aspect of the present disclosure can be realized in combination with any of the first to ninth aspects. Preferably, the lighting control system (S1) according to the tenth aspect further comprises a control device (5) that can communicate wirelessly with a lighting device (A1). Preferably, the control device (5) receives a trigger input, creates a control command that instructs the selection of scene information corresponding to the trigger input, and transmits a wireless signal including the control command to the lighting device (A1).

[0160] The lighting control system (S1) according to the tenth embodiment allows the lighting device (A1) to be controlled at any time by the control device (5), thereby further improving convenience.

[0161] A lighting control system (S1) according to the eleventh aspect of this disclosure can be realized in combination with the tenth aspect. In the lighting control system (S1) according to the eleventh aspect, it is preferable that the control device (5) receives a trigger input by human operation.

[0162] The lighting control system (S1) according to the eleventh embodiment allows the control device (5) to control the lighting device (A1) through human operation, thereby further improving convenience.

[0163] A lighting control system (S1) according to a twelfth aspect of this disclosure can be realized in combination with a tenth or eleventh aspect. In the lighting control system (S1) according to the twelfth aspect, it is preferable that the control device (communication device D1) receives trigger inputs according to a pre-set schedule.

[0164] The lighting control system (S1) according to the twelfth embodiment can be made to control the lighting device (A1) by the control device (communication device D1) according to a pre-set schedule, thereby further improving convenience.

[0165] A lighting control system (S1) according to a thirteenth aspect of the present disclosure can be realized in combination with any of the second to twelfth aspects. Preferably, the lighting control system (S1) according to the thirteenth aspect further comprises a communication device (D1) that can wirelessly communicate with a lighting device (A1) and a sensor device. Preferably, in sensor control mode, the communication device (D1) receives detection results from the sensor device (B1) by wireless communication and transmits lighting control commands based on the detection results to the lighting device (A1) by wireless communication. Preferably, the control unit (14) of the lighting device (A1) controls the power supply unit (11) in response to the lighting control commands.

[0166] The lighting control system (S1) according to the 13th embodiment performs sensor control to control the lighting device (A1) by means of a communication device (D1), thereby reducing the processing load of sensor control in the sensor device (B1).

[0167] A lighting device (A1) according to the 14th aspect of this disclosure comprises a lighting control system according to any of the 1st to 13th aspects. It includes a light source unit (10) that irradiates a lighting space with lighting light, a power supply unit (11) that supplies power to the light source unit (10), a wireless communication unit (12) that receives wireless signals, a storage unit (13) that stores a plurality of scene information, and a control unit (14) that controls the power supply unit (11) based on one scene information selected from the plurality of scene information stored in the storage unit (13).

[0168] The 14th embodiment of the lighting device (A1) causes the control unit (14) to select one scene from a plurality of scene information stored in the memory unit (13) based on a wireless signal received by the wireless communication unit (12), and to control the power supply unit (11) based on the selected scene information. Therefore, the 14th embodiment of the lighting device (A1) does not need to receive switching of the lighting state and switching of the control mode as separate control commands, thus improving convenience.

[0169] A sensor device (B1) according to the 15th aspect of this disclosure is provided in a lighting control system (S1) according to any of the 1st to 13th aspects. The sensor device (B1) according to the 15th aspect detects one or more physical quantities in the illuminated space of a lighting device (A1) and transmits the detection result of the physical quantity or a control command based on the detection result to the lighting device (A1) as a wireless signal.

[0170] The sensor device (B1) according to the 15th embodiment does not require the switching of the lighting state and the switching of the control mode to be received as separate control commands, thus improving convenience.

[0171] A setting device (3) according to the 16th aspect of this disclosure is provided in a lighting control system (S1) according to any of the 1st to 13th aspects. The setting device (3) according to the 16th aspect is configured to create scene information and to transmit the created scene information to the lighting device (A1) by wireless communication.

[0172] The setting device (3) according to the 16th embodiment can set scene information for multiple lighting devices (A1) at once, thereby further improving convenience.

[0173] A control device (5) according to the 17th aspect of this disclosure is provided in a lighting control system (S1) according to any of the 1st to 13th aspects. Preferably, the control device (5) according to the 17th aspect is capable of wireless communication with a lighting device (A1). Preferably, the control device (5) according to the 17th aspect receives a trigger input, creates a control command that instructs the selection of scene information corresponding to the trigger input, and transmits a wireless signal including the control command to the lighting device (A1).

[0174] The control device (5) according to the 17th embodiment can control the lighting device (A1) at any time, thereby further improving convenience.

[0175] The 18th aspect of this disclosure relates to a lighting control method in a lighting control system (S1) according to any of the 1st to 13th aspects. The 18th aspect relates to a lighting control method which involves storing a plurality of scene pieces in a storage unit (13) of a lighting device (A1), and causing a control unit (14) of the lighting device (A1) to control a power supply unit (11) based on one scene piece selected from the plurality of scene pieces stored in the storage unit (13). Each of the plurality of scene pieces includes lighting-related information which specifies at least one of the intensity of the illumination light, the color of the light, and the direction of illumination, and mode-specifying information which specifies one control mode from among a plurality of control modes.

[0176] The lighting control method according to the 18th embodiment does not require the transmission of switching of lighting states and switching of control modes as separate control commands, thus improving convenience.

[0177] A lighting control method according to the 19th aspect of this disclosure can be realized in combination with the 18th aspect. In the lighting control method according to the 19th aspect, the plurality of control modes preferably include a sensor control mode in which the power supply unit (11) is controlled based on control commands transmitted by a sensor device (B1) via wireless signals and scene information, and a normal control mode in which the power supply unit (11) is controlled based on scene information.

[0178] In the lighting control method according to the 19th embodiment, since multiple scene information is also stored in the memory unit (24) of the sensor device (B1), the wireless signal received by the wireless communication unit (12) of the lighting device (A1) is also received by the wireless communication unit (23) of the sensor device (B1), allowing the switching of the control mode (normal control mode and sensor control mode) in the sensor device (B1) to be performed together with the switching of the scene in the lighting device (A1). As a result, the lighting control method according to the 19th embodiment can be made even more convenient.

[0179] A program relating to the 20th aspect of this disclosure causes a computer system to execute a lighting control method relating to the 18th or 19th aspect.

[0180] The program according to the 20th embodiment does not require the switching of the lighting state and the switching of the control mode to be transmitted as separate control commands, thus improving convenience. [Explanation of Symbols]

[0181] S1 Lighting Control System A1 Lighting device B1 Sensor device C1 Tablet (control device, setting device) C2 Handheld Remote Control (Control Unit) D1 Communication device (control device) 3. Setting device 5 Control device 10 Light source section 11 Power supply section 12 Wireless Communication Section 13 Storage section 14 Control Unit 22 Sensor Control Unit 23 Wireless Communication Department 24 Memory section 30 Input reception section 32.

Claims

1. One or more lighting devices, A sensor device for detecting one or more physical quantities in the illuminated space of the aforementioned lighting device, Equipped with, The aforementioned lighting device is A light source unit that irradiates the illumination space with illumination light, A power supply unit that supplies power to the light source unit, A wireless communication unit that receives wireless signals, A memory unit that stores information on multiple scenes, A control unit that selects one scene from the plurality of scene information stored in the storage unit based on the wireless signal, and controls the power supply unit based on the selected scene information, It has, Each of the aforementioned multiple scene information includes illumination-related information specifying at least one of the intensity, color, and direction of illumination light, and mode-specifying information specifying one control mode from among multiple control modes. Lighting control system.

2. The aforementioned sensor device is A wireless communication unit that transmits and receives the aforementioned wireless signals, A storage unit that stores the aforementioned multiple scene information, A sensor control unit controls the wireless communication unit to transmit the detection result of the physical quantity or a control command based on the detection result as a wireless signal. It has, The aforementioned multiple control modes are: A sensor control mode that controls the power supply unit based on the detection result or control command transmitted by the sensor device via the wireless signal and the scene information, A normal control mode in which the power supply unit is controlled based on the aforementioned scene information, including, The lighting control system according to claim 1.

3. The sensor device detects the brightness of the illuminated space as the physical quantity, The sensor control mode is a mode in which the power supply unit is controlled so that the brightness detected by the sensor device matches a predetermined target value. The lighting control system according to claim 2.

4. The sensor device determines the presence or absence of a person in the illuminated space by detecting heat rays emitted from the human body as the physical quantity. The aforementioned sensor control mode is a mode in which the power supply unit is controlled according to the result of the sensor device's determination of the presence or absence of the person. The lighting control system according to claim 2.

5. The sensor device detects the brightness of the illuminated space as a physical quantity and detects the heat rays emitted from the human body as a physical quantity to determine whether or not there is a person in the illuminated space. The aforementioned sensor control mode is a mode in which the power supply unit is controlled based on the brightness detected by the sensor device and the determination result of whether or not a person is present. The lighting control system according to claim 2.

6. The lighting device further comprises a plurality of control devices that can communicate wirelessly with the aforementioned lighting device. Each of the plurality of control devices transmits a control command for the normal control mode to the lighting device. The lighting device is configured to cause the control unit to control the power supply unit in accordance with the control command. The control command includes a priority order for the plurality of control devices, The control unit shall prioritize the execution of the control commands that have a relatively higher priority. A lighting control system according to any one of claims 2-5.

7. The lighting device is further equipped with a setting device that can communicate wirelessly with the lighting device, The setting device is configured to create the scene information and to transmit the created scene information to the lighting device via wireless communication. The lighting device receives the scene information transmitted from the setting device with the wireless communication unit, and stores the scene information received by the wireless communication unit in the storage unit. A lighting control system according to any one of claims 2-5.

8. The setting device is, An input receiving unit that receives operation inputs relating to at least one of the aforementioned lighting-related information and the aforementioned mode specification information, A creation unit creates scene information, which includes at least one of the lighting-related information and the mode-specified information, in response to the operation input received by the input receiving unit. It has, The creation unit transmits the scene information to the lighting device if the combination of the lighting-related information and the mode specification information in the scene information created in response to the operation input does not violate a predetermined rule, and does not transmit the scene information to the lighting device if the combination violates the rule. The lighting control system according to claim 7.

9. The storage unit stores, with respect to the scene information received by the wireless communication unit from the setting device, the scene information including the lighting-related information and the mode specification information, and new scene information obtained by replacing the mode specification information included in the scene information with the normal control mode. The lighting control system according to claim 7.

10. The control device further comprises a lighting device and a control device that can communicate wirelessly with the lighting device. The control device receives a trigger input, creates a control command that instructs the selection of scene information corresponding to the trigger input, and transmits the wireless signal including the control command to the lighting device. A lighting control system according to any one of claims 1 to 5.

11. The control device receives the trigger input through human operation. The lighting control system according to claim 10.

12. The control device receives the trigger input according to a pre-set schedule. The lighting control system according to claim 10.

13. The system further comprises a communication device capable of wireless communication with the aforementioned lighting device and sensor device, In the sensor control mode, the communication device receives the detection result from the sensor device via wireless communication and transmits a lighting control command based on the detection result to the lighting device via wireless communication. The control unit of the lighting device controls the power supply unit in accordance with the lighting control command. A lighting control system according to any one of claims 2-5.

14. A lighting device comprising a lighting control system according to any one of claims 1 to 5, The light source unit irradiates the illumination light into the illumination space, The power supply unit that supplies power to the light source unit, The wireless communication unit that receives the aforementioned wireless signal, The storage unit stores the aforementioned multiple scene information, The control unit controls the power supply unit based on one scene information selected from the plurality of scene information stored in the memory unit, Having, Lighting device.

15. A sensor device comprising a lighting control system according to any one of claims 1 to 5, The system detects one or more physical quantities in the illuminated space of the lighting device and transmits the detection result of the physical quantity or a control command based on the detection result to the lighting device via a wireless signal. Sensor device.

16. A setting device comprising a lighting control system according to any one of claims 1 to 5, The system is configured to create the aforementioned scene information and to transmit the created scene information to the lighting device via wireless communication. Setting device.

17. A control device comprising a lighting control system according to any one of claims 1 to 5, The device is capable of wireless communication with the lighting device, accepts a trigger input, generates a control command that instructs the selection of scene information corresponding to the trigger input, and transmits the wireless signal including the control command to the lighting device. Control device.

18. A lighting control method in a lighting control system according to any one of claims 1 to 5, The plurality of scene information is stored in the storage unit of the lighting device. Based on one scene information selected from the plurality of scene information stored in the memory unit, the control unit of the lighting device is instructed to control the power supply unit. Each of the aforementioned multiple scene information includes illumination-related information that specifies at least one of the intensity, color, and direction of illumination light, and mode-specifying information that specifies one control mode from among the aforementioned multiple control modes. Lighting control method.

19. The aforementioned multiple control modes are: A sensor control mode that controls the power supply unit based on the control command transmitted by the sensor device via the wireless signal and the scene information, A normal control mode in which the power supply unit is controlled based on the aforementioned scene information, including, The lighting control method according to claim 18.

20. The computer system is made to execute the lighting control method described in claim 18. program.

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