Lighting control device and lighting control system

Abstract

To provide an illumination control device which has improved operability.SOLUTION: An illumination control device 13 is provided, controlling a plurality of illumination devices. The illumination control device 13 comprises: a plurality of operation units 21a to 21d corresponding to each illumination device as a control object; a numerical value display unit 31 of which the number is small than that of the operation units 21a to 21d; and a control unit. The control unit displays the current value of a dimming intensity of the illumination device corresponding to the operated operation units 21a to 21d on the numerical value display unit 31 when the operation units 21a to 21d are operated, and the dimming intensity of the illumination device corresponding to the operated operation units 21a to 21d is changed when the same operation units 21a to 21d are operated in a predetermined time after the operation of the operation units 21a to 21d, and displays a value of the changed dimming intensity in the numerical value display unit 31.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] Embodiments of the present invention relate to a lighting control device for controlling a plurality of lighting devices and a lighting control system using this lighting control device.

Background Art

[0002] Conventionally, a lighting control system for controlling a plurality of lighting devices by a lighting control device has been known. The lighting control device may include a plurality of operation units for increasing or decreasing the dimming level for each lighting device, and may also include a numerical display unit for displaying the dimming level for each lighting device numerically.

[0003] The numerical display unit may include a plurality of numerical display units corresponding to each lighting device to be controlled, or may include only one numerical display unit for a plurality of operation units.

[0004] When there is one numerical display unit, when an operation unit is operated, the dimming level of the lighting device corresponding to the operated operation unit is changed to increase or decrease, and the changed dimming level value is displayed on the numerical display unit.

[0005] When there is one numerical display unit, in order to check the current value of the dimming level of the lighting device, the corresponding operation unit may be operated to be displayed on the numerical display unit. However, when the operation unit is operated, the dimming level is changed, and the changed dimming level value is displayed on the numerical display unit. Therefore, the current value of the dimming level is not displayed. After confirmation, an operation to return the dimming level must be performed, which makes the operation complicated. Also, in order to avoid changing this dimming level, it is necessary to perform the confirmation by an operation procedure different from the operation of the operation unit, which makes the operation complicated.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] The problem to be solved by the present invention is to provide a lighting control device and a lighting control system with improved operability.

Means for Solving the Problems

[0008] The lighting control device according to the embodiment is a lighting control device that controls a plurality of lighting devices, and includes a plurality of operation units corresponding to each lighting device to be controlled, a numerical display unit having a smaller number than the operation units, and a control unit. When an operation unit is operated, the control unit displays the current value of the dimming level of the lighting device corresponding to the operated operation unit on the numerical display unit. When the same operation unit is operated within a predetermined time after the operation of the operation unit, the control unit changes the dimming level of the lighting device corresponding to the operated operation unit and displays the changed dimming level value on the numerical display unit.

Effects of the Invention

[0009] According to the lighting control device of the embodiment, an improvement in operability can be expected.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Modes for Carrying Out the Invention

[0011] Hereinafter, one embodiment will be described with reference to the drawings.

[0012] FIG. 1 shows a configuration diagram of a lighting control system 10. The lighting control system 10 includes a plurality of lighting devices 11, a plurality of sensors 12, and a lighting control device 13 that controls the plurality of lighting devices 11.

[0013] The lighting device 11 includes a light source using a light-emitting element such as an LED, and a power supply unit that dims and lights the light source according to a dimming signal from the lighting control device 13, and is a dimming-compatible lighting device capable of changing the brightness.

[0014] In the lighting control system 10, for example, when a plurality of lighting devices 11 are installed on the ceiling of a floor, the floor is divided into a plurality of zones, for example, four zones 1 to 4, and the plurality of lighting devices 11 and the lighting control device 13 arranged in each of the zones 1 to 4 are communicably connected by communication lines, respectively.

[0015] The sensor 12 includes a human presence sensor, a light sensor, a daylight sensor, etc., is communicably connected to the lighting control device 13 by a signal line, and transmits a detection signal to the lighting control device 13. Note that the sensor 12 is selectively used, and is used only when necessary for controlling the lighting device 11 in the lighting control system 10, and is not used when not necessary.

[0016] The lighting control device 13 is installed on, for example, a wall surface and is operable. The lighting control device 13 includes a control unit 14 and a storage unit 15. The control unit 14 performs dimming control on the lighting devices 11 in each of the zones 1 to 4 and controls each display on the lighting control device 13 based on operations on the lighting control device 13, preset scenes or schedules, detection signals when using the sensor 12, etc. The storage unit 15 stores, for example, the dimming levels of the lighting devices 11 in each of the zones 1 to 4 for each scene.

[0017] Fig. 2 shows a front view of the lighting control device 13. The lighting control device 13 includes an operation panel 20, and a plurality of operation units 21a to 21d, which are individual operation units or zone operation units for operating the dimming levels of the lighting devices 11 in each of the zones 1 to 4, are provided on the operation panel 20.

[0018] For each of the operation units 21a to 21d, for example, "1", "2", "3", and "4" indicating the numbers of the zones 1 to 4 to be controlled are displayed. Each of the operation units 21a to 21d includes, for example, an up button 22 with an upward triangle mark which is an operation button for increasing the dimming level, a down button 23 with a downward triangle mark which is an operation button for reducing the dimming level, and a shape display unit 24 which displays the current value of the dimming level by changing the display shape. The up button 22 and the down button 23 are arranged vertically side by side, and the shape display unit 24 is arranged side by side on the side portions of these up button 22 and down button 23.

[0019] The shape display unit 24 is, for example, a display meter in which a plurality of display segments composed of light-emitting elements such as LEDs are arranged in a single column in the vertical direction, and the number of display segments that are lit changes corresponding to the dimming level. In the shape display unit 24, the dimming level is divided and displayed for each of a plurality of ranges, and the display segments up to the range corresponding to the current value of the dimming level of the lighting device 11 to be controlled are lit. For example, when the dimming level is 50%, among the plurality of display segments, the display segments on the lower side from the center are lit. Note that the shape display unit 24 may change its shape or light color according to the dimming level.

[0020] An overall operation unit 25 is arranged adjacent to the operation units 21a to 21d corresponding to each of the zones 1 to 4. The overall operation unit 25 changes the dimming levels of the lighting devices 11 in all of the zones 1 to 4 collectively while maintaining the differences in the dimming levels of the lighting devices 11 for each of the zones 1 to 4, and includes, for example, an up button 26 with an upward triangle mark which is an operation button for increasing the dimming level, and a down button 27 with a downward triangle mark which is an operation button for reducing the dimming level.

[0021] Adjacent to the overall operation unit 25, a power button 28, a plurality of scene buttons 29, a set button 30, and a numerical display unit 31 are arranged.

[0022] The power button 28 switches the lighting on and off of all the lighting devices 11 collectively by operation.

[0023] For example, four scene buttons 29 are arranged, and for example, "1", "2", "3", "4" indicating scene numbers are displayed. Above each scene button 29, a scene display unit 32 for indicating which one of the scene buttons 29 is selected is arranged. The scene display unit 32 is lit and displayed by a light-emitting element such as an LED, for example. Each scene button 29 is set according to scenes such as daytime, nighttime, weekdays, and holidays, and the dimming levels of the lighting devices 11 in each zone 1 to 4 are stored in each scene button 29, and the dimming levels of the lighting devices 11 in each zone 1 to 4 stored by the selection of each scene button 29 are reproduced.

[0024] The set button 30 is used for the confirmation operation when setting scenes and the like.

[0025] The numerical display unit 31 has fewer numbers than the operation units 21a to 21d, for example, one, and can display at least numerical values. The numerical display unit 31 uses, for example, a liquid crystal display that displays each digit in multiple digits in a 7-segment display, and can display numbers, alphabets, and the like.

[0026] Then, when the operation units 21a to 21d are operated, the control unit 14 of the lighting control device 13 displays the current value of the dimming level of the lighting device 11 corresponding to the operated operation units 21a to 21d on the numerical display unit 31. When the same operation units 21a to 21d are operated within a predetermined time after the operation of the operation units 21a to 21d, the dimming level of the lighting device 11 corresponding to the operated operation units 21a to 21d is changed, and the value of the changed dimming level is displayed on the numerical display unit 31. And when the operation units 21a to 21d are operated, the control unit 14 displays the current value of the dimming level of the lighting device 11 corresponding to the operated operation units 21a to 21d on the numerical display unit 31. When the operated operation units 21a to 21d are continuously operated for a predetermined time or more, the dimming level of the lighting device 11 corresponding to the operated operation units 21a to 21d is changed, and the value of the dimming level to be changed is displayed on the numerical display unit 31.

[0027] Furthermore, when the overall operation unit 25 is operated, the control unit 14 displays predetermined information regarding the overall operation of the plurality of lighting devices 11 on the numerical display unit 31, and then collectively changes the dimming levels of the plurality of lighting devices 11 according to the operation of the overall operation unit 25, and has a function of changing the information displayed on the numerical display unit 31 along with this change. In this function, similar to the operation units 21a to 21d described above, when the overall operation unit 25 is operated, predetermined information regarding the overall operation of the plurality of lighting devices 11 is displayed on the numerical display unit 31, and when it is re-operated within a predetermined time after the operation of the overall operation unit 25, the dimming levels of all the lighting devices 11 are collectively changed, and the information that changes along with this change is displayed on the numerical display unit 31, and when the overall operation unit 25 is operated, predetermined information regarding the overall operation of the plurality of lighting devices 11 is displayed on the numerical display unit 31, and when the overall operation unit 25 is continuously operated for a predetermined time or more, the dimming levels of all the lighting devices 1 are collectively changed, and the information that has changed along with this change is displayed on the numerical display unit 31.

[0028] As the predetermined information regarding the overall operation of the plurality of lighting devices 11, it is possible to display the average value of the dimming levels set for each of the plurality of operation units 21a to 21d, or the amount of change in the dimming level.

[0029] Next, the control operation by the control unit 14 of the lighting control device 13 will be described.

[0030] When the power button 28 is off, "OFF" is displayed on the numerical display unit 31, and the shape display units 24 and the scene display units 32 of the respective operation units 21a to 21d are turned off and set to a non-display state.

[0031] When the power button 28 is on, in a standby state where there is no operation for a predetermined time or more, the numerical display unit 31 is set to a non-display state, and the current values of the dimming levels of the respective operation units 21a to 21d are displayed by changes in the display shape in the shape display units 24, and the scene display unit 32 of the selected scene button 29 is turned on and displayed.

[0032] Then, with the power button 28 in the on state, the operation when operating the operation units 21a to 21d corresponding to the lighting devices 11 in each zone 1 to 4 will be described with reference to the flowchart of FIG. 3.

[0033] For example, when operating the operation unit 21a corresponding to the lighting device 11 in zone 1, that is, operating the up button 22 or the down button 23 of the operation unit 21a (step S1), first, the current value of the light intensity adjustment of the lighting device 11 in zone 1 corresponding to the operated operation unit 21a is displayed on the numerical display unit 31 (step S2). That is, even if the up button 22 or the down button 23 is operated, the current value of the light intensity adjustment stored in the storage unit 15 is displayed on the numerical display unit 31 without the light intensity adjustment being changed from the current value.

[0034] When continuously operating the operation unit 21a (YES in step S3), it is determined whether the continuous operation of the operation unit 21a continues for a second predetermined time t2 (for example, about 3 seconds) or more (step S4).

[0035] If the operation of the operation unit 21a is cancelled before continuing for the second time t2 or more (NO in step S3), it is determined whether a first predetermined time t1 (for example, about 2 seconds), which is shorter than the second time t2, has elapsed since the operation of the operation unit 21a (step S5). Until the first time t1 has elapsed (NO in step S5), it is determined whether the same operation unit 21a has been operated (step S6), or whether other operation units 21b to 21d have been operated (step S7). If the same operation unit 21a is not operated (NO in step S6) and other operation units 21b to 21d are not operated either (NO in step S7), the process returns to step S5.

[0036] Here, when only the current value of the light intensity adjustment of the lighting device 11 in zone 1 is to be confirmed, after confirming the current value of the light intensity adjustment displayed on the numerical display unit 31 in step S2 and not performing any operation, when the first time t1 has elapsed in step S5 (YES in step S5), the display on the numerical display unit 31 is cleared (step S8), and the original standby state is restored.

[0037] Furthermore, when sequentially checking the current dimming values of the lighting devices 11 in each of zones 1 to 4, if it is before the first time t1 has elapsed in step S5, then when, for example, the operation unit 21b corresponding to the lighting device 11 in zone 2 is operated in step S7 (YES in step S7), the process proceeds to step S2, and the current dimming value of the lighting device 11 in zone 2 corresponding to the operated operation unit 21b is displayed on the numerical display unit 31. Also, if the first time t1 has elapsed in step S5 and after the numerical display unit 31 has been cleared in step S8, then in step S1, for example, the operation unit 21b corresponding to the lighting device 11 in zone 2 is operated. The same applies to the other operation units 21c and 21d.

[0038] Also, when changing the dimming value after checking the current dimming value of the lighting device 11 in zone 1, for example, the operation unit 21a is operated, and after checking the current dimming value displayed on the numerical display unit 31 in step S2, before the first time t1 has elapsed in step S5, that is, within the first time t1 after the operation of the operation unit 21a (after releasing the operation of the operation unit 21a), when the same operation unit 21a is operated in step S6 (YES in step S6), the dimming value is changed so as to increase or decrease according to the operation of the up button 22 or down button 23 of the operation unit 21a (step S9), the storage in the storage unit 15 is updated with the changed dimming value, and the changed dimming value is displayed on the numerical display unit 31 (step S10). Note that the determination of whether the same operation unit 21a has been operated in step S6 is made even when the up button 22 of the operation unit 21a is operated in step S1 and the down button 23 of the operation unit 21a is operated in step S6, and it is determined that the same operation unit 21a has been operated. Also, depending on the amount of change in the dimming value, the display shape displayed on the shape display unit 24 of the operation unit 21a may be changed. Also, it is possible to confirm that the brightness of the lighting device 11 in zone 1 changes as the dimming is adjusted.

[0039] Then, by repeating the re-operation of the operation unit 21a within the first time t1, the dimming value is sequentially increased or decreased. Also, if the state of the re-operation of the operation unit 21a continues for the second time t2, the dimming value is continuously increased or decreased.

[0040] Also, when changing the dimming level after checking the current value of the dimming level of the lighting device 11 in Zone 1, another operation procedure is possible. In this case, for example, the operation unit 21a is operated to check the current value of the dimming level displayed on the numerical display unit 31 in step S2, and the operation unit 21a is continuously operated (YES in step S3). When the continuous operation of the operation unit 21a continues for a second predetermined time t2 or more (YES in step S4), the process proceeds to steps S9 and S10, and the dimming level is changed so as to increase or decrease according to the operation of the up button 22 or down button 23 of the operation unit 21a. The memory of the storage unit 15 is updated with the changed dimming level value, and the changed dimming level value is displayed on the numerical display unit 31.

[0041] While the operation unit 21a is being continuously operated, the dimming level is changed so as to continuously increase or decrease according to the operation of the up button 22 or down button 23 of the operation unit 21a. The memory of the storage unit 15 is sequentially updated with the changed dimming level values, and the sequentially changed dimming level values are sequentially displayed on the numerical display unit 31.

[0042] Also, when the overall operation unit 25 is operated, predetermined information regarding the overall operation of the plurality of lighting devices 11 is displayed on the numerical display unit 31. For example, the control unit 14 obtains an average value from the dimming levels set for each of the plurality of operation units 21a to 21d, and the obtained average dimming level value is displayed on the numerical display unit 31.

[0043] Similar to the above-described operation units 21a to 21d, when re-operated within a predetermined time after the operation of the overall operation unit 25, the dimming levels of the lighting devices 11 in all zones 1 to 4 are collectively changed while maintaining the differences in the dimming levels of the lighting devices 11 for each of zones 1 to 4, and the average value that changes with this change is displayed on the numerical display unit 31. Or, when the overall operation unit 25 is continuously operated for a predetermined time or more, the dimming levels of the lighting devices 11 in all zones 1 to 4 are collectively changed while maintaining the differences in the dimming levels of the lighting devices 11 for each of zones 1 to 4, and the average value that has changed with this change is displayed on the numerical display unit 31. Depending on the amount of change in the dimming level, the display shape displayed on the shape display units 24 of the respective operation units 21a to 21d may also be changed. Also, with the change in the dimming level, the brightness of the lighting devices 11 in all zones 1 to 4 changes and can be confirmed.

[0044] In addition, when the overall operation unit 25 is operated, the amount of change in the dimming level may be displayed on the numerical display unit 31. In this case, when the overall operation unit 25 is operated, for example, "0" is displayed on the numerical display unit 31 as the initial value of the change amount, and the change amount that changes as the dimming level is changed by the operation of the overall operation unit 25 is set on the numerical display unit 31 such as "+10" or "-10".

[0045] Next, a scene setting for enabling selection of a scene using the scene button 29 will be described.

[0046] For example, when the scene button 29 for scene 1 is operated, the scene display unit 32 of the operated scene button 29 for scene 1 lights up, the number of scene 1 is displayed on the numerical display unit 31, indicating that scene 1 is selected.

[0047] By pressing the set button 30 or the scene button 29 for scene 1 for a predetermined time or more, it enters the scene setting mode for the scene button 29 for scene 1, the number of scene 1 displayed on the numerical display unit 31 blinks, indicating that it has entered the scene setting mode for the scene button 29 for scene 1.

[0048] In the scene setting mode for the scene button 29 of scene 1, each operation unit 21a to 21d can be operated to individually adjust the dimming levels of the lighting devices 11 in each zone 1 to 4 according to the scene.

[0049] In this case, similar to the above-described dimming level change operation, for example, when the operation unit 21a is operated, that is, when the up button 22 or the down button 23 of the operation unit 21a is operated, first, the initial value (for example, 70% etc.) of the dimming level of the lighting device 11 in zone 1 stored in the storage unit 15 or the value at the previous setting is displayed on the numerical display unit 31. That is, even if the up button 22 or the down button 23 of the operation unit 21a is operated, the dimming level is not changed from the initial value or the value at the previous setting, and the initial value of the dimming level stored in the storage unit 15 or the value at the previous setting is displayed on the numerical display unit 31.

[0050] Check the initial value of the dimming level or the value at the previous setting on the numerical display unit 31, change the dimming level so as to increase or decrease the dimming level according to the operation of the up button 22 or the down button 23 of the operation unit 21a, and display the changed dimming level value on the numerical display unit 31. Note that the display shape displayed on the shape display unit 24 of the operation unit 21a may also be changed according to the change amount of the dimming level. Also, the brightness of the lighting device 11 in zone 1 changes with the adjustment of the dimming level and can be confirmed.

[0051] After individually adjusting the dimming levels of the lighting devices 11 in each zone 1 to 4 according to the scene, by operating the set button 30, the scene setting mode for the scene button 29 of scene 1 is terminated, and the dimming levels of the lighting devices 11 in each zone 1 to 4 for the scene button 29 of scene 1 are stored in the storage unit 15.

[0052] Similarly, the scene buttons 29 of scenes 2, 3, and 4 can also be set.

[0053] After the scene is set, for example, when the scene button 29 of scene 1 is operated, the dimming levels of the lighting devices 11 in each of zones 1 to 4 corresponding to the scene button 29 of scene 1 stored in the storage unit 15 are read out, and by outputting dimming signals corresponding to the lighting devices 11 in each of zones 1 to 4, the lighting state of scene 1 is reproduced by the lighting devices 11 in each of zones 1 to 4.

[0054] Also, even when the lighting state of, for example, scene 1 is being reproduced by the lighting devices 11 in each of zones 1 to 4, the dimming levels of the lighting devices 11 in each of zones 1 to 4 can be changed by operating the operation units 21a to 21d in the same manner as the above-described dimming level change operation.

[0055] As described above, in the lighting control device 13 of the present embodiment, when the operation units 21a to 21d are operated, the current value of the dimming level of the lighting device 11 corresponding to the operated operation units 21a to 21d is displayed on the numerical display unit 31, and when the same operation units 21a to 21d are operated within a predetermined time after the operation of the operation units 21a to 21d, the dimming level of the lighting device 11 corresponding to the operated operation units 21a to 21d is changed and the value of the changed dimming level is displayed on the numerical display unit 31. Therefore, after confirming the current value of the dimming level, the dimming level can be changed, and the operability can be improved.

[0056] Also, for each of the operation units 21a to 21d, a shape display unit 24 that displays the current value of the dimming level of the lighting device 11 corresponding to the operated operation units 21a to 21d by changing the display shape is used in combination, so that the approximate current value of the dimming level can be grasped.

[0057] Also, when the overall operation unit 25 is operated, after displaying predetermined information regarding the overall operation of the plurality of lighting devices 11 on the numerical display unit 31, the dimming levels of the plurality of lighting devices 11 are collectively changed according to the operation of the overall operation unit 25 and the information displayed on the numerical display unit 31 is changed. Therefore, the amount of change in the dimming level during overall operation can be grasped numerically, and the operability can be improved.

[0058] As predetermined information regarding the overall operation of the plurality of lighting devices 11, by displaying the average value of the dimming levels set for each of the plurality of operation units 21a to 21d, it becomes easier to grasp the amount of change in the dimming level during overall operation corresponding to the actual average brightness, and the operability can be improved.

[0059] Also, in the standby state, by making the numerical display unit 31 non-displayed and only displaying the shape display unit 24, the dimming level can be intuitively grasped. Also, by operating the operation units 21a to 21d as needed, detailed numerical values of the dimming level can be obtained on one numerical display unit 31. Therefore, there is an effect that the appearance is not impaired, such as there being no clutter due to the unnecessary display of numerical values.

[0060] Also, when the operation units 21a to 21d are operated, the current value of the dimming level of the lighting device 11 corresponding to the operated operation units 21a to 21d is displayed on the numerical display unit 31. When the operated operation units 21a to 21d are continuously operated for a predetermined time or more, the dimming level of the lighting device 11 corresponding to the operated operation units 21a to 21d is changed and the value of the dimming level to be changed is displayed on the numerical display unit 31. Therefore, after confirming the current value of the dimming level, the dimming level can be changed, and the operability can be improved.

[0061] In the embodiment, the numerical display unit 31 has been described by taking one form as an example. However, the present invention is not limited to this, and it may have a smaller number of numerical display units 31 than the operation units 21a to 21d.

[0062] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and its equivalent scope.

Explanation of Reference Numerals

[0063] 10 Lighting control system 11 Lighting device 13 Lighting control device 14 Control unit 21a~21d Operation unit 24 Shape display unit 25 Overall operation unit 31 Numerical display unit

Claims

1. An illumination control device for controlling a plurality of illumination devices, a plurality of operation units corresponding to each of the illumination devices to be controlled; a numerical display unit having a smaller number than the operation units; when the operation unit is operated, a current value of the dimming level of the illumination device corresponding to the operated operation unit is displayed on the numerical display unit, and when the same operation unit is operated within a predetermined time after the operation of the operation unit, the dimming level of the illumination device corresponding to the operated operation unit is changed and the value of the changed dimming level is displayed on the numerical display unit; a control unit; An illumination control device, characterized by comprising the above.

2. An illumination control device for controlling a plurality of illumination devices, a plurality of operation units corresponding to each of the illumination devices to be controlled; a numerical display unit having a smaller number than the operation units; when the operation unit is operated, a current value of the dimming level of the illumination device corresponding to the operated operation unit is displayed on the numerical display unit, and when the operated operation unit is continuously operated for a predetermined time or more, the dimming level of the illumination device corresponding to the operated operation unit is changed and the value of the changed dimming level is displayed on the numerical display unit; a control unit; An illumination control device, characterized by comprising the above.

3. Each of the operation units is provided with a shape display unit that displays the current value of the dimming level of the illumination device corresponding to the operated operation unit by a change in the display shape The illumination control device according to claim 1 or 2, characterized by the above.

4. provided with an overall operation unit for overall operation of a plurality of the illumination devices to be controlled by a plurality of the operation units, When the overall operation unit is operated, the control unit displays predetermined information regarding the overall operation of the plurality of illumination devices on the numerical display unit, and then changes the dimming levels of the plurality of illumination devices in a lump according to the operation of the overall operation unit and changes the information displayed on the numerical display unit The lighting control device according to any one of claims 1 to 3, characterized in that...

5. The control unit displays, on the numerical display unit, an average value of the dimming levels set for each of the plurality of operation units as predetermined information regarding the overall operation of the plurality of lighting devices. The lighting control device according to claim 4, characterized in that...

6. A plurality of lighting devices; The lighting control device according to any one of claims 1 to 5, which controls the lighting devices; A lighting control system, characterized by comprising...

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