Lighting control system

Abstract

To provide a lighting control system capable of enhancing an attractive property and an inductive property to a person due to a change of a light color.SOLUTION: A lighting control system 1 comprises: a plurality of lighting devices 10; and a control part 20 that generates a control signal for controlling each of the plurality of lighting devices 10. The control part 20 outputs the control signal capable of controlling each of the plurality of lighting devices 10 so that light is applied to a plurality of parts in an irradiation surface. Each control signal is an output signal that individually changes a light output and the light color of the plurality of lighting devices 10, and is also a dynamic signal so that the light output in the plurality of lighting devices 10 continuously and periodically repeats an increase and a decrease, and the light color emitted by the plurality of lighting devices 10 continuously and periodically repeats the change. The control part 20 outputs the control signal in the plurality of lighting devices 10, so as to be two or more kinds of light color patterns in which the light color applied to the irradiation surface is changed with time.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to a lighting control system. [Background technology]

[0002] The lighting control system of Patent Document 1 includes a plurality of lighting fixtures that illuminate a space, and a terminal device having a setting mode that enables operation to set or change a guidance pattern including a guidance route, and a guidance mode that controls at least one of dimming and color adjustment of the plurality of lighting fixtures in accordance with the guidance pattern. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-162697 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, there is a demand for a system that can change the color of light emitted by multiple lighting fixtures to be more eye-catching and guide people, as compared to conventional lighting control systems.

[0005] Therefore, an object of the present disclosure is to provide a lighting control system that can increase the eye-catching and guiding characteristics of a person by changing the color of light. [Means for solving the problem]

[0006] A lighting control system according to one aspect of the present disclosure includes a plurality of light source units and a control unit that generates a control signal for controlling each of the plurality of light source units, the control unit outputs a control signal capable of controlling each of the plurality of light source units so that light is irradiated to a plurality of portions of an irradiation surface, each of the control signals being output signals that individually change the light output and color of the light of each of the plurality of light source units, and each of the control signals is a dynamic signal in which the light output of the plurality of light source units increases and decreases continuously and periodically and the color of the light emitted by the plurality of light source units changes continuously and periodically, and the control unit outputs the control signal such that the color of light irradiated to the irradiation surface by the plurality of light source units is two or more types of light color patterns that change over time. Effect of the Invention

[0007] According to the lighting control system of the present disclosure, it is possible to increase the eye-catching and guiding characteristics of a person by changing the color of the light. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a block diagram showing a lighting control system according to an embodiment. [Diagram 2] FIG. 2 is a schematic diagram showing a case where the lighting control system is installed in a passageway. [Diagram 3] FIG. 3 is a diagram showing the light intensity and the control signal. [Figure 4] FIG. 4 is a diagram showing a case where, when each of a plurality of lighting devices irradiates light onto an irradiation surface, the color of part of the light irradiated onto the irradiation surface changes. [Figure 5A] FIG. 5A is a diagram showing a case where a plurality of lighting devices are regularly lit with a first light color pattern and a second light color pattern. [Figure 5B] FIG. 5B is a diagram showing another case in which a plurality of lighting devices are regularly lit with a first light color pattern and a second light color pattern. [Figure 5C]FIG. 5C is a diagram showing one or more lighting devices that light up with a first light color pattern and one or more lighting devices that light up with a second light color pattern, such that the difference in the number of lighting devices for each type of light color pattern is 1 or less. [Figure 5D] FIG. 5D is a diagram showing one or more lighting devices that light up with a first light color pattern, one or more lighting devices that light up with a second light color pattern, and one or more lighting devices that light up with a third light color pattern, so that the number of lighting devices that emit light for each type of light color pattern is the same. [Figure 5E] FIG. 5E is another diagram showing one or more lighting devices that light up with a first light color pattern, one or more lighting devices that light up with a second light color pattern, and one or more lighting devices that light up with a third light color pattern, such that the difference in the number of lighting devices for each type of light color pattern is 1 or less. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that each of the embodiments described below shows a specific example of the present disclosure. Therefore, the numerical values, shapes, materials, components, arrangement and connection of the components, steps, order of steps, and the like shown in the following embodiments are merely examples and are not intended to limit the present disclosure.

[0010] Each figure is a schematic diagram and is not necessarily precisely illustrated. Therefore, for example, the scales and the like do not necessarily match in each figure. Furthermore, in each figure, the same reference numerals are given to substantially the same configurations, and duplicated explanations are omitted or simplified.

[0011] (Embodiment) <Configuration and Function> A lighting control system 1 according to the following embodiment will be described with reference to FIGS. 1 to 4. FIG.

[0012] FIG. 1 is a block diagram showing a lighting control system 1 according to a first embodiment. FIG. 2 is a schematic diagram showing a case where the lighting control system 1 is installed in a passage. FIG. 2 illustrates a case where the colors of the lights emitted by the multiple lighting devices 10 are different. FIG. 3 illustrates a light output (luminous intensity or illuminance) and a control signal. FIG. 4 illustrates a case where the color of a part of the light irradiated on the irradiation surface changes when each of the multiple lighting devices 10 irradiates the irradiation surface with light. FIG. 4 illustrates an example of an arrangement of light colors different from that in FIG. 2. FIG. 5A illustrates a case where the multiple lighting devices 10 are regularly lit with a first light color pattern and a second light color pattern. FIG. 5B illustrates another case where the multiple lighting devices 10 are regularly lit with a first light color pattern and a second light color pattern. FIG. 5C illustrates one or more lighting devices 10 that are lit with a first light color pattern and one or more lighting devices 10 that are lit with a second light color pattern such that the difference in the number of lighting devices 10 for each type of light color pattern is 1 or less. Fig. 5D is a diagram showing one or more lighting devices 10 that light up in a first light color pattern, one or more lighting devices 10 that light up in a second light color pattern, and one or more lighting devices 10 that light up in a third light color pattern, so that the number of lighting devices 10 that emit light for each type of light color pattern is the same. Fig. 5E is another diagram showing one or more lighting devices 10 that light up in a first light color pattern, one or more lighting devices 10 that light up in a second light color pattern, and one or more lighting devices 10 that light up in a third light color pattern, so that the difference in the number of lighting devices 10 for each type of light color pattern is 1 or less.

[0013] As shown in FIG. 1, the lighting control system 1 is an affordance lighting system that can guide people by adjusting the lighting mode of the light emitted from the lighting device 10. For example, the lighting control system 1 of the present embodiment can guide people in a predetermined direction, gather the guided people in a predetermined area, or guide people gathered in a predetermined area to disperse by adjusting the lighting mode. For example, it is known that people have a characteristic that they are more likely to be guided to a bright place than to a dark place in the vertical plane illuminance. In addition, by changing the color of the light, people pay attention to the change in color. For this reason, since the lighting control system 1 illuminates the ground, it is expected that the lighting control system 1 can guide people by changing the brightness and color of the light to affect people's emotions.

[0014] Such a lighting control system 1 is used in places where it is necessary to guide people, have them stay, or have them move around, such as parks, amusement parks, stations, large-scale facilities, and the like.

[0015] As shown in FIGS. 1 and 2, a lighting control system 1 includes a plurality of lighting devices 10, a lighting control device 2, and a power supply unit 30.

[0016] Each of the lighting devices 10 is, for example, a lighting device 10 for outdoor use such as a street light, a lighting device 10 for a facility installed in a facility, etc. In the present embodiment, each of the lighting devices 10 is arranged along a passage. In FIG. 2, five lighting devices 10 are illustrated as the lighting devices 10, namely, a first lighting device 10a, a second lighting device 10b, a third lighting device 10c, a fourth lighting device 10d, and a fifth lighting device 10e. The lighting device 10 is a general name including the first lighting device 10a, the second lighting device 10b, the third lighting device 10c, the fourth lighting device 10d, and the fifth lighting device 10e. The number of the lighting devices 10 is merely an example, and is not limited to five lighting devices 10. For example, the number of the lighting devices 10 may be two or more, and preferably three or more. The lighting device 10 is an example of a light source unit.

[0017] Each of the plurality of lighting devices 10 includes a light source 11 and a light emission control circuit (not shown). The light source 11 is a light emitting module in which a plurality of LED (Light Emitting Diode) elements are mounted. Each of the plurality of LED elements includes a red LED chip, a blue LED chip, a green LED chip, a white LED chip, and a yellow LED chip. The light source 11 may be configured to emit white light by combining a blue LED and a yellow phosphor. Furthermore, the light source 11 may emit various light colors by selectively combining two or more of these LED elements. Note that the present invention is not limited to these, and a commonly used configuration may be used as the light source 11. The light emission control circuit independently controls each LED chip, so that each of the plurality of lighting devices 10 emits light to an irradiation surface and irradiates the irradiation surface with light. The light source 11 may be an example of a light source unit.

[0018] When the lighting device 10 receives a control signal from the lighting control device 2, the lighting device 10 turns on in a lighting mode corresponding to the control signal. The lighting device 10 has a dimming function and a color adjustment function.

[0019] For example, the lighting device 10 has a dimming function that adjusts the brightness of the light emitted by the light source 11 to a plurality of levels, thereby making the brightness of the emitted light darker or brighter. The lighting device 10 can periodically fluctuate the output of the emitted light. Here, "periodic" may mean the same period or different periods.

[0020] Furthermore, the lighting device 10 can emit white light ranging from a low color temperature such as incandescent light to a high color temperature such as warm white, neutral white, or daylight light as a color adjustment function. The lighting device 10 can periodically change the color of the emitted light. For example, in a lighting design, the lighting device 10 can periodically change the color temperature so as to repeatedly increase or decrease the redness of the emitted light. Furthermore, the lighting device 10 can change the color of the emitted light by changing the wavelength of the emitted light as a lighting design.

[0021] The relationship between the first lighting device 10a, the second lighting device 10b, the third lighting device 10c, the fourth lighting device 10d, and the fifth lighting device 10e from one side of the multiple lighting devices 10 in FIG. 2 and the light irradiation areas A1 to A5 will be described.

[0022] The first lighting device 10a emits light onto a light irradiation area A1 on the irradiation surface of the passage. The second lighting device 10b emits light onto a light irradiation area A2 on the irradiation surface. The third lighting device 10c emits light onto a light irradiation area A3 on the irradiation surface. The fourth lighting device 10d emits light onto a light irradiation area A4 on the irradiation surface. The fifth lighting device 10e emits light onto a light irradiation area A5 on the irradiation surface.

[0023] The light irradiation areas A1 to A5 are different locations on the irradiation surface of the passage. In Fig. 2, the first lighting device 10a, the second lighting device 10b, the third lighting device 10c, the fourth lighting device 10d, and the fifth lighting device 10e are arranged in this order, so the light irradiation areas A1 to A5 are also arranged in this order.

[0024] The lighting control device 2 can individually control each of the multiple lighting devices 10. The lighting control device 2 can also collectively control each of the multiple lighting devices 10. The lighting control device 2 can output a control signal for causing each of the multiple lighting devices 10 to illuminate in a predetermined manner to each of the multiple lighting devices 10, thereby causing each of the multiple lighting devices 10 to illuminate in a predetermined manner in response to the control signal.

[0025] Specifically, the lighting control device 2 includes a control unit 20.

[0026] The control unit 20 generates a control signal for controlling each of the plurality of lighting devices 10, and outputs the generated control signal to each of the plurality of lighting devices 10. In other words, the control unit 20 outputs a control signal capable of controlling each of the plurality of lighting devices 10 so that light is irradiated onto a plurality of portions of the irradiation surface.

[0027] Each control signal is an output signal that individually changes the light output and light color of each of the multiple lighting devices 10, and is a dynamic signal that causes the light output of the multiple lighting devices 10 to increase and decrease continuously and periodically, and the color of the light emitted by the multiple lighting devices 10 to change continuously and periodically. For this reason, as shown in (a) and (b) of Fig. 3, each of the multiple lighting devices 10 emits light such that the light output increases and decreases continuously and periodically in response to the control signal, and the color of the light changes continuously and periodically, as shown in Fig. 4. The color of the light can be quantitatively represented by the chromaticity of a chromaticity diagram.

[0028] 3(a) and 3(b), only the first lighting device 10a and the second lighting device 10b are illustrated, but this is merely an example. For example, the first lighting device 10a, the second lighting device 10b, the third lighting device 10c, the fourth lighting device 10d, and the fifth lighting device 10e may emit different colors of light. The first lighting device 10a, the third lighting device 10c, and the fifth lighting device 10e may receive the same first control signal, and the second lighting device 10b and the fourth lighting device 10d may receive the same second control signal.

[0029] Further, the control unit 20 outputs control signals to the plurality of lighting devices 10 so as to produce two or more types of light color patterns. That is, the control unit 20 outputs a control signal indicating a light color pattern to the target lighting device 10. In the two or more types of light color patterns, the color of light irradiated onto the irradiation surface may change over time in all light color patterns, or the color of light irradiated onto the irradiation surface may change over time in one or more light color patterns. For this reason, for example, as shown in FIG. 5A and FIG. 5B, the color of light irradiated onto the irradiation surface in one light color pattern may change over time, and the color of light irradiated onto the irradiation surface in another light color pattern may be constant. In FIG. 5A and FIG. 5B, a sixth lighting device 10f, a seventh lighting device 10g, and an eighth lighting device 10h are further set as the plurality of lighting devices 10.

[0030] Specifically, when the two or more types of light color patterns include a first light color pattern and a second light color pattern, the color of light irradiated onto the irradiation surface by one or more lighting devices 10 set with the first light color pattern is different from the color of light irradiated onto the irradiation surface by one or more lighting devices 10 set with the second light color pattern. For example, the control unit 20 may output different control signals to the first lighting device 10a, the fourth lighting device 10d, and the seventh lighting device 10g and the second lighting device 10b, the third lighting device 10c, the fifth lighting device 10e, the sixth lighting device 10f, and the eighth lighting device 10h, respectively. That is, the control unit 20 may output a control signal such that the color of light emitted by the first lighting device 10a, the fourth lighting device 10d, and the seventh lighting device 10g (or a first light color pattern) is different from the color of light emitted by the second lighting device 10b, the third lighting device 10c, the fifth lighting device 10e, the sixth lighting device 10f, and the eighth lighting device 10h (or a second light color pattern). In this case, the control unit 20 may control the second lighting device 10b, the third lighting device 10c, the fifth lighting device 10e, the sixth lighting device 10f, and the eighth lighting device 10h so that the colors of the lights emitted by the second lighting device 10b, the third lighting device 10c, the fifth lighting device 10e, the sixth lighting device 10f, and the eighth lighting device 10h change periodically in conjunction with each other, as shown in FIG. 5A. The control unit 20 may control the first lighting device 10a, the fourth lighting device 10d, and the seventh lighting device 10g so that the colors of the lights emitted by the first lighting device 10a, the fourth lighting device 10d, and the seventh lighting device 10g change periodically in conjunction with each other, as shown in FIG. 5B.

[0031] When the first light color pattern and the second light color pattern are different, it means that they do not exist within at least n-steps of the same MacAdam ellipse. For example, it means that the color of the light emitted by the second lighting device 10b exists outside the n-steps of the MacAdam ellipse centered on the color of the light emitted by the first lighting device 10a. Note that n is an integer value such as 1, 2, 3, 4, 5, etc., and is preferably 3, 5, or 10. For example, when the color of the light emitted by the second lighting device 10b is outside the range of 3-steps of the MacAdam ellipse centered on the color of the light emitted by the first lighting device 10a, a person can recognize the difference in color when comparing the two lights.

[0032] Furthermore, the control unit 20 can set a predetermined regularity for the lighting devices 10 that execute two or more types of light color patterns. The predetermined regularity is, for example, a regularity based on a sequence such as an arithmetic progression, a geometric progression, a difference progression, or a Fibonacci sequence. For example, when the lighting devices 10 are arranged in one or more rows, the predetermined regularity is applied to the array. The predetermined regularity shown in FIG. 4 is a regularity based on an arithmetic progression.

[0033] Furthermore, the control unit 20 can change the light color pattern set in each of the multiple lighting devices 10 to another light color pattern. That is, the control unit 20 may automatically change the light color pattern to another light color pattern, or the control unit 20 may change the light color pattern to another light color pattern in response to an operational instruction given by a person via the input unit.

[0034] 5C, 5D, and 5E, a sixth lighting device 10f, a seventh lighting device 10g, and an eighth lighting device 10h are further set as the plurality of lighting devices 10. In FIG.

[0035] 5C, when the control unit 20 sets two or more types of light color patterns for the plurality of lighting devices 10, the control unit 20 sets the number of lighting devices 10 that emit light for each type of light color pattern so that the number of lighting devices 10 that emit light is the same. For example, when the control unit 20 sets two types of light color patterns for the first lighting device 10a, the second lighting device 10b, the third lighting device 10c, the fourth lighting device 10d, the fifth lighting device 10e, the sixth lighting device 10f, the seventh lighting device 10g, and the eighth lighting device 10h, the control unit 20 may set the first lighting device 10a, the third lighting device 10c, the fifth lighting device 10e, and the seventh lighting device 10g to a first light color pattern that changes from bluish to yellowish, and set the second lighting device 10b, the fourth lighting device 10d, the sixth lighting device 10f, and the eighth lighting device 10h to a second light color pattern that is white.

[0036] 5D, when the control unit 20 sets two or more types of light color patterns for the plurality of lighting devices 10, the control unit 20 sets the difference in the number of lighting devices 10 for each type of light color pattern to be 1 or less. For example, when the control unit 20 sets three types of light color patterns for the first lighting device 10a, the second lighting device 10b, the third lighting device 10c, the fourth lighting device 10d, the fifth lighting device 10e, the sixth lighting device 10f, the seventh lighting device 10g, and the eighth lighting device 10h, the control unit 20 may set the first lighting device 10a, the fourth lighting device 10d, and the seventh lighting device 10g to a first light color pattern that changes from yellow to blue, set the second lighting device 10b, the fifth lighting device 10e, and the eighth lighting device 10h to a second light color pattern that is out of phase with the first light color pattern, and set the third lighting device 10c and the sixth lighting device 10f to a third light color pattern that is white. In this way, the two or more types of light color patterns may each have a different light color, and the first light color pattern and the second light color pattern may be out of phase with each other.

[0037] 5E, when the control unit 20 sets two or more types of light color patterns for the plurality of lighting devices 10, the control unit 20 sets the light color patterns so that the difference in the number of lighting devices 10 for each type of light color pattern is 1 or less. For example, when the control unit 20 sets three types of light color patterns for the first lighting device 10a, the second lighting device 10b, the third lighting device 10c, the fourth lighting device 10d, the fifth lighting device 10e, the sixth lighting device 10f, the seventh lighting device 10g, and the eighth lighting device 10h, the control unit 20 may set the first lighting device 10a, the fourth lighting device 10d, and the seventh lighting device 10g to a first light color pattern that changes from yellow to blue, set the second lighting device 10b, the fifth lighting device 10e, and the eighth lighting device 10h to a second light color pattern that changes from green to red, and set the third lighting device 10c and the sixth lighting device 10f to a third light color pattern of white. In this way, the first light color pattern, the second light color pattern, and the third light color pattern may each have a different light color.

[0038] Note that the number of types of light color patterns is merely an example and is not limited to this.Furthermore, the lighting device 10 that sets the light color patterns is also merely an example and is not limited to this.

[0039] Furthermore, as shown in (a) and (b) of FIG. 3, at least two of the phases in the control signals output to the plurality of lighting devices 10 are different from each other.

[0040] Specifically, the control unit 20 transmits control signals with different phases to each of the first lighting device 10a and the second lighting device 10b. That is, the control unit 20 transmits control signals with different phases to each of the first lighting device 10a and the second lighting device 10b, as indicated by the solid line and the dashed line in Fig. 3(b). As a result, as shown in Fig. 3(b), the output waveform of the light emitted by the first lighting device 10a and the output waveform of the light emitted by the second lighting device 10b are in different phases.

[0041] Furthermore, the cycles of the control signals output to the first lighting device 10a and the second lighting device 10b may be different from each other, that is, the control signals may be output to the first lighting device 10a and the second lighting device 10b at different cycles.

[0042] The control signal may be a dynamic output signal consisting of a signal with a waveform that increases only once per cycle and a signal with a waveform that decreases only once per cycle. Therefore, the light emitted by each of the lighting devices 10 per cycle also consists of light whose output increases only once and light whose output decreases only once. The control signal may also include a signal that turns the output of the lighting device 10 OFF or ON.

[0043] It should be noted that the control signals shown in (a) and (b) of FIG. 3 are merely examples, and the control signals are not limited to those shown in FIG.

[0044] The control unit 20 outputs a control signal to each of the plurality of lighting devices 10, which can control each of the plurality of lighting devices 10 that emit light so that the light is irradiated onto different areas on the illumination surface of the passage.

[0045] Specifically, when the first lighting device 10a and the second lighting device 10b are arranged in this order from one side to the other side of the passage as the multiple lighting devices 10, for example, the control unit 20 outputs different control signals to the first lighting device 10a and the second lighting device 10b. More specifically, the control unit 20 outputs control signals to each of the first lighting device 10a and the second lighting device 10b, which make the color of light emitted by the first lighting device 10a and the color of light emitted by the second lighting device 10b different. The first lighting device 10a emits light of a different color from the second lighting device 10b. As a result, the color of light of the irradiation surface irradiated with the light emitted by the first lighting device 10a is different from the color of light of the irradiation surface irradiated with the light emitted by the second lighting device 10b. The light-irradiated area A1 of the illuminated surface irradiated with the light emitted by the first lighting device 10a and the light-irradiated area A2 of the illuminated surface irradiated with the light emitted by the second lighting device 10b have different light colors, so the colors appear different on one side of the passageway and the other side.

[0046] The power supply unit 30 has a function of supplying power to the multiple lighting devices 10 and the lighting control device 2. The power supply unit 30 is, for example, a power supply circuit in which multiple electronic components are mounted on a printed circuit board. The power supply unit 30 generates, for example, drive power for causing each of the multiple light sources 11 to emit light. Specifically, the power supply unit 30 generates drive power for causing the light sources 11 to emit light, and supplies this drive power to each of the light sources 11. In other words, the power supply unit 30 converts commercial AC power into DC power, and supplies this DC power to each of the light sources 11 as drive power for causing the light sources 11 to emit light. This causes the light sources 11 to emit light.

[0047] Next, the transition of light irradiated onto an irradiation surface will be described with reference to FIG.

[0048] 4 illustrates a lighting control system 1 in which five lighting devices 10 are lined up along a passage as a plurality of lighting devices 10, and emit light in a regular sequence of light colors. In FIG. 4, the light color patterns of the first lighting device 10a, the third lighting device 10c, and the fifth lighting device 10e change, while the light color patterns of the second lighting device 10b and the fourth lighting device 10d are constant. In other words, the chromaticity is constant in the light irradiation areas A2 and A4.

[0049] 4, the first lighting device 10a, the third lighting device 10c, and the fifth lighting device 10e irradiate the light irradiation areas A1, A3, and A5 with light having a color different from that of the light irradiated by the second lighting device 10b and the fourth lighting device 10d. The chromaticity of the light irradiation areas A1, A3, and A5 is different from that of the light irradiation areas A2 and A4, and the chromaticity changes from blue to yellow.

[0050] 4, the first lighting device 10a, the third lighting device 10c, and the fifth lighting device 10e irradiate the light irradiation areas A1, A3, and A5 with light so that the chromaticity becomes even more yellowish than in the first stage. The chromaticity of the light irradiation areas A1, A3, and A5 differs from that of the light irradiation areas A2 and A4, and the chromaticity changes from bluish to more yellowish than in the first stage.

[0051] 4, the first lighting device 10a, the third lighting device 10c, and the fifth lighting device 10e irradiate the light irradiation areas A1, A3, and A5 with light so that the chromaticity becomes even more yellowish than in the second stage. The chromaticity of the light irradiation areas A1, A3, and A5 differs from that of the light irradiation areas A2 and A4, and the chromaticity becomes more yellowish than in the second stage.

[0052] 4, the first lighting device 10a, the third lighting device 10c, and the fifth lighting device 10e irradiate the light irradiation areas A1, A3, and A5 with light having a color different from that of the light irradiated by the second lighting device 10b and the fourth lighting device 10d. The chromaticity of the light irradiation areas A1, A3, and A5 is different from that of the light irradiation areas A2 and A4, and the chromaticity changes from yellowish to blueish.

[0053] Similarly, the colors of the lights emitted by the first lighting device 10a, the third lighting device 10c, and the fifth lighting device 10e are repeatedly changed.

[0054] In this way, the chromaticity of the light irradiation areas A1 to A5 can be changed by setting a light color pattern with a predetermined regularity in the multiple lighting devices 10. In this embodiment, the chromaticity can be changed while also changing the output of light emitted by each of the multiple lighting devices 10.

[0055] In the present embodiment, the color of the light changes from blue to yellow, but the present invention is not limited to this. The color may change from yellow to blue. The color of the light from each of the lighting devices 10 may be changed along a line connecting two points on a chromaticity diagram.

[0056] <Action and effect> Next, the effects of the lighting control system 1 in the present embodiment will be described.

[0057] The lighting control system 1 in the technique 1 of the present embodiment includes a plurality of lighting devices 10 and a control unit 20 that generates a control signal for controlling each of the plurality of lighting devices 10. The control unit 20 outputs a control signal that can control each of the plurality of lighting devices 10 so that light is irradiated to a plurality of portions of the irradiation surface. Each control signal is an output signal that individually changes the light output and light color of each of the plurality of lighting devices 10, and is a dynamic signal in which the light output of the plurality of lighting devices 10 increases and decreases continuously and periodically, and the color of the light emitted by the plurality of lighting devices 10 changes continuously and periodically. The control unit 20 outputs a control signal in the plurality of lighting devices 10 so that the color of the light irradiated to the irradiation surface becomes two or more types of light color patterns that change over time.

[0058] According to this, the color of light can be changed so that the multiple lighting devices 10 have two or more types of light color patterns. Furthermore, the light output of the multiple lighting devices 10 can also be changed over time, so that the light output and color of the light change individually, making it easier for people to recognize the change in the light irradiated on the irradiated surface. For this reason, people are motivated to move, wander around, or stay in response to the change.

[0059] Therefore, the lighting control system 1 can increase the eye-catching and guiding characteristics of people by changing the color of the light. As a result, the lighting control system 1 can realize an affordance lighting system.

[0060] Furthermore, the lighting control system 1 according to Technique 2 of the present embodiment is the lighting control system 1 according to Technique 1. In this case, at least two of the phases in the control signals output to the multiple lighting devices 10 are different from each other.

[0061] For example, in Fig. 4, it is possible to create a lighting effect in which light flows from one side to the other, or from the other side to one side. This is expected to encourage people to wander around a specific area or to guide people.

[0062] Furthermore, each of the lighting devices 10 emits dynamic light that repeatedly increases and decreases in a predetermined cycle so that the light output and color of the light change based on the control signal. Therefore, the light output and color of the light are repeatedly increased and decreased in a predetermined cycle and irradiated onto the irradiated surface. This is expected to draw people's attention to the light irradiated onto the irradiated surface, thereby increasing the attention and guidance of the light to people.

[0063] Furthermore, the lighting control system 1 in Technique 3 of the present embodiment is the lighting control system 1 described in Technique 1 or 2. In this case, the control unit 20 can change the light color pattern set in each of the multiple lighting devices 10 to another light color pattern.

[0064] This allows the light color pattern to be changed according to the purpose of the stage lighting, which is expected to attract people, encourage them to move around, or disperse them.

[0065] Furthermore, the lighting control system 1 in Technique 4 of the present embodiment is the lighting control system 1 described in any one of Techniques 1 to 3. In this case, the control unit 20 sets a predetermined regularity for a plurality of lighting devices 10 that execute two or more types of light color patterns.

[0066] This makes it less likely that people will feel uncomfortable because of the regular arrangement of the light.

[0067] Furthermore, the lighting control system 1 in Technique 5 of the present embodiment is the lighting control system 1 described in any one of Techniques 1 to 4. In this case, when setting two or more types of light color patterns for the multiple lighting devices 10, the control unit 20 sets the same number of lighting devices 10 that emit light for each type of light color pattern.

[0068] According to this, the number of lighting devices 10 can be set according to the number of types of light color patterns. This unifies the number of lighting devices 10, making it less likely that people will feel uncomfortable.

[0069] Furthermore, the lighting control system 1 in Technique 6 of the present embodiment is the lighting control system 1 described in any one of Techniques 1 to 4. In this case, when setting two or more types of light color patterns for a plurality of lighting devices 10, the control unit 20 sets the types of light color patterns so that the difference in the number of lighting devices 10 for each type of light color pattern is 1 or less.

[0070] This also makes it possible to minimize the difference in the number of lighting devices 10 for each type of light color pattern. This unifies the number of lighting devices 10, making it less likely that people will feel uncomfortable.

[0071] (Other variations, etc.) Although the present disclosure has been described above based on the embodiments, the present disclosure is not limited to these embodiments.

[0072] For example, the control unit included in the lighting control system in the present embodiment is typically realized as an LSI, which is an integrated circuit. These may be implemented as individual chips, or may be implemented as a single chip that includes some or all of the components.

[0073] The integrated circuit is not limited to an LSI, but may be realized by a dedicated circuit or a general-purpose processor. A field programmable gate array (FPGA) that can be programmed after the LSI is manufactured, or a reconfigurable processor that can reconfigure the connections and settings of the circuit cells inside the LSI may also be used.

[0074] In the above embodiment, each component may be implemented by dedicated hardware or by executing a software program suitable for each component. Each component may be implemented by a program execution unit such as a CPU or processor reading and executing a software program recorded on a storage medium such as a hard disk or semiconductor memory.

[0075] Furthermore, all the numbers used above are merely examples for the purpose of specifically explaining the present disclosure, and the embodiments of the present disclosure are not limited to the exemplified numbers.

[0076] In addition, the division of functional blocks in the block diagram is an example, and multiple functional blocks may be realized as one functional block, one functional block may be divided into multiple blocks, or some functions may be transferred to another functional block. Furthermore, the functions of multiple functional blocks having similar functions may be processed in parallel or in a time-sharing manner by a single piece of hardware or software.

[0077] In addition, the present disclosure also includes forms obtained by applying various modifications to the embodiments that a person skilled in the art may think of, and forms realized by arbitrarily combining the components and functions of the embodiments within the scope that does not deviate from the spirit of the present disclosure. [Explanation of symbols]

[0078] 1. Lighting control system 10 Lighting device (light source section) 10a 1st lighting device (light source section) 10b 2nd lighting device (light source section) 10c Third lighting device (light source section) 10d 4th lighting device (light source section) 10e 5th lighting device (light source section) 10f 6th lighting device (light source section) 10g 7th lighting device (light source part) 10h 8th lighting device (light source section) 20 Control section

Claims

1. A plurality of light source units; a control unit that generates a control signal for controlling each of the plurality of light source units, the control unit outputs a control signal capable of controlling each of the plurality of light source units so that light is irradiated onto a plurality of portions of an irradiation surface; each of the control signals is an output signal that individually changes the light output and the color of the light of each of the plurality of light source units, and is a dynamic signal that causes the light output of the plurality of light source units to increase and decrease continuously and periodically, and causes the color of the light emitted by the plurality of light source units to change continuously and periodically; The control unit outputs the control signal so that the color of the light irradiated onto the irradiation surface from the plurality of light source units becomes two or more types of light color patterns that change over time. Lighting control system.

2. At least two of the phases of the control signals output to the plurality of light source units are different from each other.

2. A lighting control system as claimed in claim 1.

3. The control unit is capable of changing the light color pattern set for each of the plurality of light source units to another light color pattern.

3. A lighting control system according to claim 1 or 2.

4. The control unit sets a predetermined regularity for a plurality of lighting devices that execute two or more types of light color patterns.

3. A lighting control system according to claim 1 or 2.

5. When the control unit sets two or more types of the light color patterns for the plurality of light source units, the control unit sets the number of the light source units that irradiate light for each type of the light color pattern to be the same.

3. A lighting control system according to claim 1 or 2.

6. When the control unit sets two or more types of the light color patterns for the plurality of light source units, the control unit sets the light color patterns such that a difference in the number of the light source units for each type of the light color pattern is 1 or less.

3. A lighting control system according to claim 1 or 2.

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