Lighting control device, lighting device, lighting system, and lighting control method

Abstract

To provide a lighting control unit capable of guiding people with light, lighting devices, a lighting system, and a lighting control method.SOLUTION: A lighting control unit 20 includes a control unit 21 that outputs control signals capable of controlling each of multiple lighting devices 10 that output light so that the light is irradiated to two or more places on the irradiation surface R. The control signals are dynamic output signals repeating cyclic increase and decrease so that the light output of the multiple lighting devices 10 changes. In the phase in each control signal sent to each of the lighting devices 10, at least two are not identical.SELECTED DRAWING: Figure 2

Description

[Technical Field]

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

[0002] Patent Document 1 discloses a conventional guidance and presentation system. The guidance and presentation system includes an entrance / exit lighting device and a display shelf lighting device that guide people's behavior by using irradiated light. The entrance / exit lighting device adjusts the illuminance of light emitted to the entrance / exit using PWM current control. The display shelf lighting device adjusts the illuminance of light emitted to the display shelf using PWM current control. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-125434 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional guidance and performance systems guide people by changing the illuminance of the light emitted by entrance / exit lighting devices and display shelf lighting devices, but simply changing the illuminance may not be enough to guide people.

[0005] Therefore, an object of the present disclosure is to provide a lighting control device, a lighting device, a lighting system, and a lighting control method that can guide people using light. [Means for solving the problem]

[0006] A lighting control device according to one aspect of the present disclosure includes a control unit that outputs a control signal that can control each of a plurality of light source units that output light so that light is irradiated at two or more locations on an irradiation surface, and the control signal is a dynamic output signal that periodically increases and decreases so that the light output of the plurality of light source units changes;a signal that combines an output signal that increases the light output of the plurality of light source units while enlarging a light irradiation area of ​​light that is irradiated onto the irradiation surface, and an output signal that decreases the light output of the plurality of light source units while reducing the light irradiation area, At least two of the control signals transmitted to the plurality of light source units are not identical in phase.

[0007] Moreover, an illumination device according to an aspect of the present disclosure includes an illumination control device and a plurality of light source units capable of outputting light to the illumination surface.

[0008] Furthermore, an illumination device according to an aspect of the present disclosure includes a first light source unit capable of outputting light to an irradiation surface, a second light source unit capable of outputting light to the irradiation surface, and a control unit that outputs control signals capable of controlling each of the first light source unit and the second light source unit, wherein the first light source unit irradiates a first light irradiation area on the irradiation surface with the output light, and the second light source unit irradiates a second light irradiation area on the irradiation surface with the output light, and the control signal is a dynamic output signal that periodically increases and decreases so that light outputs of the first light source unit and the second light source unit are changed; a signal that combines an output signal that increases the light output of the first light source unit and the second light source unit while enlarging the first light irradiation area and the second light irradiation area, and an output signal that decreases the light output of the first light source unit and the second light source unit while reducing the first light irradiation area and the second light irradiation area, The control signals transmitted to the first light source unit and the second light source unit do not have the same phase.

[0009] Furthermore, a lighting device according to an aspect of the present disclosure control the device includes a control unit that outputs a control signal that can control each of a plurality of light source units that output light so that light is irradiated at two or more points on the irradiation surface, and the control signal is a dynamic output signal that periodically increases and decreases so that the light output of the plurality of light source units changes; a signal that combines an output signal that increases the light output of the plurality of light source units while enlarging a light irradiation area of ​​light that is irradiated onto the irradiation surface, and an output signal that decreases the light output of the plurality of light source units while reducing the light irradiation area, The phase of each of the control signals transmitted to the plurality of light source units is such that light output from each of the plurality of light source units is irradiated. The aforementioned The phases of the control signals transmitted to two or more light source units that irradiate light onto adjacent predetermined areas on the irradiation surface are not the same.

[0010] A lighting system according to an aspect of the present disclosure includes a lighting control device and a plurality of light source units capable of outputting light to the irradiation surface.

[0011] Furthermore, an illumination control method according to an aspect of the present disclosure includes causing each of a plurality of light source units to output light so that light is irradiated onto two or more locations on an illumination surface, and outputting a control signal for controlling each of the plurality of light source units, wherein the control signal is a dynamic output signal that periodically increases and decreases so that the light output of the plurality of light source units is changed; a signal that combines an output signal that increases the light output of the plurality of light source units while enlarging a light irradiation area of ​​light that is irradiated onto the irradiation surface, and an output signal that decreases the light output of the plurality of light source units while reducing the light irradiation area, At least two of the control signals transmitted to the light source unit have different phases. [Effects of the Invention]

[0012] According to the lighting control device and the like of the present disclosure, people can be guided by light. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a block diagram showing a lighting system according to an embodiment. [Figure 2] FIG. 2 is a schematic diagram showing a case where each of a plurality of lighting devices irradiates light onto an irradiation surface. [Figure 3A] FIG. 3A is a diagram illustrating a control signal of a lighting control device according to an embodiment. [Figure 3B] FIG. 3B is a diagram illustrating another control signal in the lighting control device according to the embodiment. [Figure 4A] FIG. 4A is a diagram showing a case where, when each of a plurality of lighting devices irradiates light onto an irradiation surface, the light irradiated onto the irradiation surface transits linearly. [Figure 4B] FIG. 4B is a diagram showing a case where, when each of a plurality of lighting devices irradiates light onto an irradiation surface, the light irradiated onto the irradiation surface transitions into a planar shape. [Figure 5] FIG. 5 is a diagram showing the relationship between illuminance and time when each of the first, second, and third lighting devices outputs light. [Figure 6] FIG. 6 is a block diagram showing a lighting system according to another modified example. [Figure 7] FIG. 7 is another block diagram showing a lighting system according to another modified example. [Figure 8] FIG. 8 is another block diagram showing a lighting system according to another modified example. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that each of the embodiments described below represents 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.

[0015] The drawings are schematic diagrams and are not necessarily drawn to scale. Therefore, for example, the scales of the drawings do not necessarily match. In addition, the same reference numerals are used in the drawings to denote substantially the same components, and redundant explanations will be omitted or simplified.

[0016] (Embodiment) <Configuration and Function: Lighting System 1> A lighting system 1 according to the following embodiment will be described.

[0017] FIG. 1 is a block diagram showing a lighting system 1 according to an embodiment.

[0018] 1, lighting system 1 can guide people present in a predetermined area by adjusting the illumination mode of light emitted from lighting device 10. For example, lighting system 1 of the present embodiment can guide people in a predetermined direction, gather people who have been guided in a predetermined direction within a predetermined area, or guide people who have gathered within a predetermined area to disperse them, by adjusting the illumination mode.

[0019] For example, it is known that people are attracted to bright places rather than dark places, as is known as the savanna effect. For this reason, the lighting system 1 can induce people's emotions by transitioning to bright light.

[0020] Such a lighting system 1 is used in places where it is necessary to guide many people, such as parks, amusement parks, stations, large-scale facilities, and the like.

[0021] 1 and 2, the lighting system 1 includes a lighting support 40, a plurality of lighting devices 10, a lighting control device 20, and a power supply unit 30. Fig. 2 is a schematic diagram showing a case where each of the plurality of lighting devices 10 irradiates light onto an illumination surface R.

[0022] [Lighting Support 40] The lighting support 40 includes a base 41 , a support 42 , and a lighting mounting portion 43 .

[0023] The base 41 is installed on the ground and can support the support pole 42. The support pole 42 is a long rod. One end of the support pole 42 is connected to the base 41 and the other end is connected to the lighting mounting part 43. The lighting mounting part 43 is connected to the support pole 42. A plurality of lighting devices 10 are attached to the lighting mounting part 43. Specifically, the lighting mounting part 43 can mount a plurality of lighting devices 10 in a state where the plurality of lighting devices 10 are lined up horizontally. The lighting mounting part 43 or the base 41 may house the lighting control device 20, the power supply unit 30, etc.

[0024] [Lighting device 10] Each of the lighting devices 10 is, for example, an outdoor lighting device such as a street light, or a lighting device for a facility installed inside a facility. Each of the lighting devices 10 is composed of a light source 11, a light-emitting control circuit, etc. The light source 11 is a light-emitting module in which a plurality of LED (Light Emitting Diode) elements are mounted. Each of the LED elements includes a red LED chip, a blue LED chip, and a green LED chip. The light-emitting control circuit independently controls each LED chip, causing each of the lighting devices 10 to output light to an irradiation surface R and irradiate the irradiation surface R with light. In other words, the lighting device 10 has a dimming function and a color-adjusting function. The light source 11 may be an example of a light source unit. The lighting device 10 may also be an example of a light source unit.

[0025] When the lighting device 10 receives a control signal from the lighting control device 20, the lighting device 10 turns on in a lighting mode corresponding to the control signal. For example, the lighting device 10 has a dimming function that adjusts the brightness of the light emitted by the light source 11 in multiple stages, thereby making the brightness of the emitted light brighter or darker. In other words, the lighting device 10 can periodically fluctuate the brightness of the emitted light.

[0026] Furthermore, the lighting device 10 has a color adjustment function that allows it to emit white light ranging from a low color temperature, such as incandescent white, to a high color temperature, such as warm white, neutral white, or daylight white. That is, the lighting device 10 can periodically fluctuate the color hue of the emitted light. For example, in a lighting effect, the lighting device 10 periodically changes the color temperature by repeatedly increasing or decreasing the redness of the emitted light.

[0027] As a lighting effect, the lighting device 10 may change the wavelength of the emitted light to change the color of the emitted light.

[0028] Furthermore, the plurality of lighting devices 10 are arranged in a linear line on the lighting mounting portion 43 of the lighting support body 40 so as to be substantially parallel to the horizontal plane. FIG. 2 illustrates a case in which four lighting devices 10 are mounted on the lighting mounting portion 43 of the lighting support body 40. The number of lighting devices 10 mounted on the lighting mounting portion 43 may be three or less, or may be five or more. Furthermore, the plurality of lighting devices 10 may be mounted on the lighting mounting portion 43 so as to be arranged in multiple rows in a linear line so as to be substantially parallel to the horizontal plane.

[0029] Furthermore, each of the multiple lighting devices 10 is attached to the lighting mounting portion 43 of the lighting support body 40 so that the output light can be irradiated to a different location on the irradiation surface R. In this case, the lighting devices 10 arranged at both ends of the multiple lighting devices 10 arranged in a line are attached to the lighting mounting portion 43 so that they output light in different directions. Furthermore, one or more lighting devices 10 arranged between the lighting devices 10 arranged at both ends may be attached to the lighting mounting portion 43 so that they output light in different directions, or may be attached to the lighting mounting portion 43 so that they output light in the same direction. Here, the light output direction refers to the direction along the optical axis of the light emitted by the lighting device 10, i.e., the main light direction.

[0030] The relationship between the first lighting device 10a, the second lighting device 10b, the third lighting device 10c, and the fourth lighting device 10d among the plurality of lighting devices 10 in FIG. 2 and the first light irradiation region, the second light irradiation region, the third light irradiation region, and the fourth light irradiation region will be described.

[0031] When the first lighting device 10a outputs light, it irradiates the output light onto a first light irradiation region on the irradiation surface R. When the second lighting device 10b outputs light, it irradiates the output light onto a second light irradiation region on the irradiation surface R. When the third lighting device 10c outputs light, it irradiates the output light onto a third light irradiation region on the irradiation surface R. When the fourth lighting device 10d outputs light, it irradiates the output light onto a fourth light irradiation region on the irradiation surface R.

[0032] The first light irradiation region, the second light irradiation region, the third light irradiation region, and the fourth light irradiation region are each located at different positions on the irradiation surface R. In Fig. 2, the first lighting device 10a, the second lighting device 10b, the third lighting device 10c, and the fourth lighting device 10d are arranged side by side in this order, and therefore the first light irradiation region, the second light irradiation region, the third light irradiation region, and the fourth light irradiation region are also formed side by side in this order. Among the first light irradiation region, the second light irradiation region, the third light irradiation region, and the fourth light irradiation region, two adjacent light irradiation regions may partially overlap.

[0033] [Lighting control device 20] The lighting control device 20 can control the multiple lighting devices 10 individually or collectively. That is, the lighting control device 20 outputs control signals to each of the multiple lighting devices 10 to cause each of the multiple lighting devices 10 to illuminate in a predetermined manner, thereby causing the multiple lighting devices 10 to illuminate in a predetermined manner in response to the control signals. That is, the lighting control device 20 controls the multiple lighting devices 10 to illuminate in a predetermined manner indicated by the control signals.

[0034] The lighting control device 20 includes a control unit 21.

[0035] The control unit 21 outputs a control signal that can control each of the plurality of lighting devices 10 that output light so that light is irradiated at two or more locations on the irradiation surface R. The control signal is a dynamic output signal that periodically increases and decreases so that the output of the plurality of lighting devices 10 changes.

[0036] Examples of control signals are shown in Figures 3A and 3B. Figure 3A is a diagram showing control signals of lighting control device 20 according to an embodiment. Figure 3B is a diagram showing another control signal of lighting control device 20 according to an embodiment.

[0037] Specifically, as shown in Fig. 3A, the control signal per cycle T1 may be a dynamic output signal consisting of a signal with a waveform that increases only twice and a signal with a waveform that decreases only once. Also, as shown in Fig. 3B, the control signal per cycle T2 may be a dynamic output signal consisting of a signal with a waveform that increases only three times and a signal with a waveform that decreases only twice. In other words, the control signal per cycle T1, T2 is composed of a signal that combines a signal with a waveform that increases at least once and a signal with a waveform that decreases at least once. The control signal may also be one that turns the output of the light source 11 on or off.

[0038] It should be noted that the control signals shown in FIGS. 3A and 3B are merely examples, and the control signals are not limited to those in this embodiment.

[0039] Furthermore, at least two of the phases of the control signals transmitted to each of the lighting devices 10 are not the same. Specifically, the control unit 21 transmits control signals with different phases to each of the lighting devices 10. That is, the control unit 21 transmits control signals such as those shown in FIGS. 3A and 3B to each of the lighting devices 10 by varying the phases. As a result, as shown in FIGS. 2 and 5, the waveform of the illuminance at point S1 on the irradiated surface R that changes over time and the waveform of the illuminance at point S3 on the irradiated surface R that changes over time are in different phases. Furthermore, point S2 is a composite light of points S1 and S3. FIG. 5 is a diagram showing the relationship between illuminance and time when each of three lighting devices 10 outputs light.

[0040] The cycles of the control signals output to the multiple lighting devices 10 may be the same. That is, the control signals having the waveforms shown in Fig. 3A may be output with different phases to the multiple lighting devices 10. The same applies to the case shown in Fig. 3B.

[0041] The cycles of the control signals output to the multiple lighting devices 10 may be different. That is, a control signal having the waveform shown in Fig. 3A may be output to each of the multiple lighting devices 10 at a different cycle. The same applies to the case shown in Fig. 3B. Furthermore, a control signal having the waveform shown in Fig. 3A may be output to one of the multiple lighting devices 10, and a control signal having the waveform shown in Fig. 3B may be output to another of the multiple lighting devices 10.

[0042] 2, when light output from each of the plurality of lighting devices 10 is irradiated onto an irradiation surface R, the percentage difference in the maximum illuminance on each of the plurality of lighting devices 10 may be less than 60%. In other words, when light output from each of the plurality of lighting devices 10 is irradiated onto an irradiation surface R, the percentage difference in the maximum illuminance on each of the plurality of lighting devices 10 may be the same or less than 60%. Here, the percentage difference in the maximum illuminance on each of the plurality of lighting devices 10 may be, for example, the relative value of the maximum illuminance in two light irradiation areas, or the percentage difference between a reference value and the maximum illuminance in the light irradiation area.

[0043] For example, the difference in maximum illuminance values ​​among the first light irradiation region, the second light irradiation region, the third light irradiation region, and the fourth light irradiation region in Fig. 2 is less than 60%. In this case, the control unit 21 outputs control signals to the first lighting device 10a, the second lighting device 10b, the third lighting device 10c, and the fourth lighting device 10d so that the difference in maximum illuminance values ​​among the first light irradiation region, the second light irradiation region, the third light irradiation region, and the fourth light irradiation region is less than 60%.

[0044] Furthermore, when the light output from each of the plurality of lighting devices 10 is irradiated onto the irradiation surface R, the maximum illuminance values ​​on the respective irradiation surfaces R may differ by 60% or more.

[0045] For example, the maximum illuminance values ​​in the first light irradiation region, the second light irradiation region, the third light irradiation region, and the fourth light irradiation region in Fig. 2 differ from one another by 60% or more. In this case, the control unit 21 outputs control signals to the first lighting device 10a, the second lighting device 10b, the third lighting device 10c, and the fourth lighting device 10d so that the percentage differences in the maximum illuminance values ​​in the first light irradiation region, the second light irradiation region, the third light irradiation region, and the fourth light irradiation region differ from one another by 60% or more.

[0046] Furthermore, when light output from each of the multiple lighting devices 10 is irradiated onto the irradiation surface R, the light irradiated onto the irradiation surface R may transition in a linear manner. In other words, in the lighting system 1, the multiple lighting devices 10 each output light, so that the light irradiated onto the irradiation surface R appears to move continuously in a linear manner.

[0047] Here, the manner in which the light irradiated onto the irradiation surface R transits linearly will be described.

[0048] 4A is a diagram showing a case where light irradiated onto the irradiation surface R in FIG. 2 transits linearly when each of the plurality of lighting devices 10 irradiates light onto the irradiation surface R. FIG. 4A illustrates a case where a plurality of lighting systems 1 are used. As the plurality of lighting systems 1, a first lighting system 1a, a second lighting system 1b, and a third lighting system 1c are illustrated.

[0049] The first lighting system 1a illuminates the first light irradiation region A1, the second light irradiation region A2, the third light irradiation region A3, and the fourth light irradiation region A4. The second lighting system 1b illuminates the first light irradiation region B1, the second light irradiation region B2, the third light irradiation region B3, and the fourth light irradiation region B4. The third lighting system 1c illuminates the first light irradiation region C1, the second light irradiation region C2, the third light irradiation region C3, and the fourth light irradiation region C4. As described above, the first light irradiation regions A1, B1, C1, the second light irradiation regions A2, B2, C2, the third light irradiation regions A3, B3, C3, and the fourth light irradiation regions A4, B4, C4 are arranged in this order.

[0050] For example, in the first stage of FIG. 4A, the first light irradiation areas A1, B1, and C1 have the third brightest first illuminance.

[0051] Next, in the second stage, the first light irradiation areas A1, B1, and C1 are illuminated with the second illuminance, which is the second brightest, and the second light irradiation areas A2, B2, and C2 are illuminated with the first illuminance, which is the third brightest.

[0052] Next, in the third stage, the first light irradiation areas A1, B1, and C1 have the brightest third illuminance, the second light irradiation areas A2, B2, and C2 have the second illuminance, and the third light irradiation areas A3, B3, and C3 have the first illuminance.

[0053] Next, in the fourth stage, the first light irradiation areas A1, B1, and C1 have the second illuminance, the second light irradiation areas A2, B2, and C2 have the third illuminance, the third light irradiation areas A3, B3, and C3 have the second illuminance, and the fourth light irradiation areas A4, B4, and C4 have the first illuminance.

[0054] Next, in the fifth stage, the first light irradiation areas A1, B1, and C1 have the first illuminance, the second light irradiation areas A2, B2, and C2 have the second illuminance, the third light irradiation areas A3, B3, and C3 have the third illuminance, and the fourth light irradiation areas A4, B4, and C4 have the second illuminance.

[0055] Next, in the sixth stage, the second light irradiation areas A2, B2, and C2 have the first illuminance, the third light irradiation areas A3, B3, and C3 have the second illuminance, and the fourth light irradiation areas A4, B4, and C4 have the third illuminance.

[0056] In this way, for example, the light of the third illuminance, the brightest, irradiated onto the irradiation surface R in Figure 2 appears to transition in a straight line from left to right. The speed at which the light transitions in a straight line may be the same as the speed at which a person walks (about several kilometers per hour).

[0057] When light output from each of the plurality of lighting devices 10 is irradiated onto the irradiation surface R, the light irradiated onto the irradiation surface R may transition in a planar manner. In other words, when each of the plurality of lighting devices 10 outputs light, the light irradiated onto the irradiation surface R appears to move in a planar manner.

[0058] Here, the manner in which the light irradiated onto the irradiation surface R transitions to a planar shape will be described.

[0059] 4B is a diagram showing a case where the light irradiated onto the irradiation surface R is transferred in a planar form when each of the plurality of lighting devices 10 irradiates the irradiation surface R with light. In FIG. 4B, the lighting system 1 illuminates first light irradiation areas A1, B1, C1, second light irradiation areas A2, B2, C2, third light irradiation areas A3, B3, C3, and fourth light irradiation areas A4, B4, C4.

[0060] For example, the first light irradiation area A1, the second light irradiation area A2, the third light irradiation area A3, and the fourth light irradiation area A4 are arranged side by side in this order in the horizontal direction. The same applies to the other light irradiation areas B1 to B4, C1 to C4. The first light irradiation areas A1, B1, and C1 are arranged side by side in this order in the vertical direction. The same applies to the other light irradiation areas A2, B2, C2, A3, B3, C3, A4, B4, and C4.

[0061] For example, in the first stage of FIG. 4B, the first light irradiation area A1, the second light irradiation area A2, the third light irradiation area A3, and the fourth light irradiation area A4 have the third brightest first illuminance.

[0062] Next, in the second stage, the first light irradiation area A1, the second light irradiation area A2, the third light irradiation area A3 and the fourth light irradiation area A4 have the second brightest second illuminance, and the first light irradiation area B1, the second light irradiation area B2, the third light irradiation area B3 and the fourth light irradiation area B4 have the third brightest first illuminance.

[0063] Next, in the third stage, the first light irradiation area A1, the second light irradiation area A2, the third light irradiation area A3 and the fourth light irradiation area A4 have the brightest third illuminance, the first light irradiation area B1, the second light irradiation area B2, the third light irradiation area B3 and the fourth light irradiation area B4 have the second illuminance, and the first light irradiation area C1, the second light irradiation area C2, the third light irradiation area C3 and the fourth light irradiation area C4 have the first illuminance.

[0064] Next, in the fourth stage, the first light irradiation area A1, the second light irradiation area A2, the third light irradiation area A3 and the fourth light irradiation area A4 have the second illuminance, the first light irradiation area B1, the second light irradiation area B2, the third light irradiation area B3 and the fourth light irradiation area B4 have the third illuminance, and the first light irradiation area C1, the second light irradiation area C2, the third light irradiation area C3 and the fourth light irradiation area C4 have the second illuminance.

[0065] Next, in the fifth stage, the first light irradiation area A1, the second light irradiation area A2, the third light irradiation area A3 and the fourth light irradiation area A4 have a first illuminance, the first light irradiation area B1, the second light irradiation area B2, the third light irradiation area B3 and the fourth light irradiation area B4 have a second illuminance, and the first light irradiation area C1, the second light irradiation area C2, the third light irradiation area C3 and the fourth light irradiation area C4 have a third illuminance.

[0066] Next, in the sixth stage, the first light irradiation area B1, the second light irradiation area B2, the third light irradiation area B3 and the fourth light irradiation area B4 are illuminated at the first illuminance, and the first light irradiation area C1, the second light irradiation area C2, the third light irradiation area C3 and the fourth light irradiation area C4 are illuminated at the second illuminance.

[0067] 4B illustrates an example in which the light irradiated onto the irradiation surface R transitions in a planar manner only in a predetermined direction from the lighting system 1, but the present invention is not limited to the example illustrated in FIG. 4B. For example, the light may transition radially from the lighting system 1 with the lighting system 1 at the center, or may transition so as to converge toward the lighting system 1. Furthermore, the light irradiated onto the irradiation surface R may transition freely.

[0068] [Power supply section 30] The power supply unit 30 has a function of supplying power to the multiple lighting devices 10 and the lighting control device 20. 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, thereby causing the light-emitting elements of the light sources 11 in FIG. 2 to emit light.

[0069] [summary] In this way, for example, the light of the third brightest illuminance irradiated onto the illumination surface R appears to transition so as to spread linearly or in a plane from the feet side of the lighting system 1. The speed at which the light transitions linearly may be the same as the speed at which a person walks.

[0070] In the lighting system 1 of this embodiment, by irradiating light onto the illumination surface R, the light can be transitioned in a linear or planar manner. Therefore, by creating a lighting effect in which light flows from one point to another, it is possible to guide people from one point to another. For example, by transitioning the light in a linear or planar manner, it is possible to disperse people who are gathering in a specific area, or to gather people in a specific area.

[0071] Furthermore, in the lighting system 1 of this embodiment, by combining changes in illuminance and / or color temperature with light transitions, it is possible to create a lighting effect in which light flows from one point to another, thereby enhancing the effect of guiding people.

[0072] <Action and effect> Next, the effects of the lighting control device 20, the lighting device 10, the lighting system 1, and the lighting control method according to the present embodiment will be described.

[0073] As described above, lighting control device 20 of this embodiment includes control unit 21 that outputs control signals that can control each of multiple lighting devices 10 to output light so that light is irradiated at two or more locations on illumination surface R. The control signals are dynamic output signals that periodically increase and decrease so as to change the light output of the multiple lighting devices 10. At least two of the control signals transmitted to each of the multiple lighting devices 10 are not identical in phase.

[0074] According to this, each of the multiple lighting devices 10 outputs dynamic light that periodically increases and decreases so that the light output changes based on the control signal. As a result, light whose brightness periodically increases and decreases is irradiated onto the irradiation surface R. Furthermore, the phases of the control signals transmitted to each of the multiple lighting devices 10 are different. As a result, the shape and brightness of the light irradiated onto the irradiation surface R change, and the position of the light irradiated onto the irradiation surface R also changes. This causes people to be conscious of wanting to move in response to these changes.

[0075] Therefore, this lighting control device 20 can guide people by light.

[0076] Furthermore, the lighting device 10 of this embodiment includes a lighting control device 20 and a plurality of light source units (light sources 11) capable of outputting light to the irradiation surface R.

[0077] This lighting device 10 also provides the same effects as those described above.

[0078] In particular, with this lighting device 10, by providing multiple light source units, there is no need to equip the light source units with a drive mechanism that changes the direction of the light emitted by the light source units themselves. This makes it possible to suppress an increase in the manufacturing cost of the lighting device 10. In addition, there is no need to input power to the drive mechanism. Furthermore, since there is no need to provide a drive mechanism, it is also possible to suppress an increase in the maintenance frequency of the lighting device 10. As a result, the lighting device 10 makes it possible to suppress an increase in the manufacturing cost.

[0079] Furthermore, the lighting system 1 of this embodiment includes a lighting control device 20 and a plurality of lighting devices 10 that can output light to an irradiation surface R.

[0080] This lighting system 1 also provides the same effects as those described above.

[0081] In particular, according to this lighting system 1, by providing a plurality of lighting devices 10, there is no need to equip the light source unit with a drive mechanism that changes the direction of the light output by the lighting devices 10 themselves. This makes it possible to suppress an increase in the manufacturing cost of the lighting system 1. Furthermore, since no drive mechanism is provided, there is no need to input power to the drive mechanism. Furthermore, since no drive mechanism is provided, it is also possible to suppress an increase in the frequency of maintenance of the lighting system 1. As a result, the lighting system 1 makes it possible to suppress an increase in the manufacturing cost.

[0082] The lighting control method of the present embodiment also includes causing each of the plurality of lighting devices 10 to output light and outputting a control signal to control each of the plurality of lighting devices 10 so that light is irradiated at two or more locations on the illumination surface R. The control signal is a dynamic output signal that periodically increases and decreases so that the light output of the plurality of lighting devices 10 changes. At least two of the control signals transmitted to the lighting devices 10 have different phases.

[0083] This lighting system 1 also provides the same effects as those described above.

[0084] Furthermore, in lighting control device 20 of the present embodiment, the control signals output to the plurality of lighting devices 10 have the same period.

[0085] According to this, each of the multiple lighting devices 10 outputs dynamic light that repeatedly increases and decreases in the same cycle so that the light output changes based on the control signal. Therefore, the illumination surface R is illuminated with light whose brightness repeatedly increases and decreases in the same cycle, so the light illuminated on the illumination surface R can transition at substantially the same speed.

[0086] Furthermore, in lighting control device 20 of the present embodiment, the control signals output to the plurality of lighting devices 10 each have a different cycle.

[0087] According to this, each of the multiple lighting devices 10 outputs dynamic light that repeatedly increases and decreases in different cycles so that the light output changes based on the control signal. Therefore, the illumination surface R is illuminated with light whose brightness repeatedly increases and decreases in different cycles, so the light illuminated on the illumination surface R can transition at substantially the same speed. This allows people to focus on the light illuminated on the illumination surface R, thereby attracting people to a predetermined area.

[0088] Furthermore, in the lighting control device 20 of this embodiment, when light output from each of the multiple lighting devices 10 is irradiated onto the irradiation surface R, the difference in the maximum illuminance values ​​on each irradiation surface R is less than 60%.

[0089] This makes it possible to make the size, shape, and brightness of the light irradiation area of ​​the light irradiated onto the irradiation surface R uniform. Therefore, people are less likely to feel uncomfortable with the light irradiated onto the irradiation surface R.

[0090] Furthermore, in the lighting control device 20 of this embodiment, when light output from each of the multiple lighting devices 10 is irradiated onto an irradiation surface R, the difference in the maximum illuminance on each irradiation surface R is 60% or more.

[0091] This makes it possible to dynamically change the size, shape, and brightness of the light irradiation area of ​​the light irradiated onto the irradiation surface R. Therefore, the light irradiated onto the irradiation surface R can be used to create an effect that guides people.

[0092] Furthermore, in lighting control device 20 of the present embodiment, when light output from each of multiple lighting devices 10 is irradiated onto irradiation surface R, the light irradiated onto irradiation surface R transitions linearly.

[0093] This allows the light irradiated onto the illumination surface R to transition linearly, making it possible to guide people according to the transition of the light. In other words, by creating a lighting effect in which light flows from one point to another, it is possible to guide people from one point to another.

[0094] Furthermore, in lighting control device 20 of the present embodiment, when light output from each of multiple lighting devices 10 is irradiated onto irradiation surface R, the light irradiated onto irradiation surface R transitions in a planar shape.

[0095] This allows for lighting effects that disperse people gathered in a specific area or gather people in a specific area, thereby guiding people.

[0096] (Other variations, etc.) Although the present disclosure has been described above based on the embodiments, the present disclosure is not limited to these embodiments.

[0097] For example, in the lighting control device 20, lighting device 10e, lighting system 1e, and lighting control method according to the present embodiment, Fig. 6 is a block diagram showing a lighting system 1e according to another modification. As shown in Fig. 6, the lighting system 1e may be provided with one lighting device 10e. Furthermore, one lighting device 10e in the lighting system 1e may have multiple light sources 11. Therefore, the lighting system 1e is not limited to being provided with multiple lighting devices 10e.

[0098] Furthermore, in the lighting control device 20, lighting device 10f, lighting system 1f, and lighting control method according to the present embodiment, Fig. 7 is another block diagram showing a lighting system 1f according to another modified example. As shown in Fig. 7, the lighting system 1f may be provided with a single lighting device 10f. Alternatively, the single lighting device 10f of the lighting system 1f may have a plurality of light sources 11, a lighting control device 20, and a power supply unit 30. Therefore, the lighting system 1f is not limited to being provided with a plurality of lighting devices 10f.

[0099] Furthermore, in the lighting control device 20, lighting device 10g, lighting system 1g, and lighting control method according to the present embodiment, Fig. 8 is another block diagram showing a lighting system 1g according to another modification. As shown in Fig. 8, the lighting system 1g may be provided with a plurality of lighting devices 10g. Furthermore, each of the plurality of lighting devices 10g of the lighting system 1g may have one or more light sources 11 and a lighting control device 20.

[0100] Furthermore, the lighting device 10 of this embodiment includes a first light source unit (light source 11 of the lighting device 10) capable of outputting light to the irradiation surface R, a second light source unit (light source 11 of another lighting device 10) capable of outputting light to the irradiation surface R, and a control unit 21 that outputs control signals capable of controlling each of the first light source unit and the second light source unit. The first light source unit irradiates the output light onto a first light irradiation area on the irradiation surface R. The second light source unit irradiates the output light onto a second light irradiation area on the irradiation surface R. The control signals are dynamic output signals that periodically increase and decrease so that the light outputs of the first light source unit and the second light source unit change. The phases of the control signals sent to the first light source unit and the second light source unit are not the same. This lighting device 10 also achieves the same effects as those described above.

[0101] Furthermore, the lighting device 10 of this embodiment includes a control unit 21 that outputs control signals that can control each of the multiple lighting devices 10 that output light so that light is irradiated to two or more locations on the irradiation surface R. The control signals are dynamic output signals that periodically increase and decrease so that the light output of the multiple lighting devices 10 changes. The phases of the control signals transmitted to each of the multiple light source units 11 are not the same as those of the control signals transmitted to two or more light source units R that irradiate adjacent predetermined areas on the irradiation surface R that is irradiated with the light output from each of the multiple light source units 11. This lighting device 10 also achieves the same effects as those described above.

[0102] Furthermore, the control units included in the lighting control device, lighting device, lighting system, lighting control method, etc. in the present embodiment are typically realized as LSIs, which are integrated circuits. These may be individually implemented as single chips, or some or all of them may be integrated into a single chip.

[0103] Furthermore, the integration is not limited to LSI, but may be realized by dedicated circuits or general-purpose processors. FPGAs (Field Programmable Gate Arrays), which can be programmed after LSI fabrication, or reconfigurable processors, which allow the connections and settings of circuit cells within LSIs to be reconfigured, may also be used.

[0104] In the above-described embodiments, each component may be configured with dedicated hardware, or may be realized by executing a software program suitable for each component. Each component may be realized by a program execution unit such as a CPU or processor reading and executing a software program recorded on a storage medium such as a hard disk or semiconductor memory.

[0105] Furthermore, all of the numbers used above are examples for specifically explaining the present disclosure, and the embodiments of the present disclosure are not limited to the numbers shown as examples.

[0106] The division of functional blocks in the block diagram is an example, and multiple functional blocks may be realized as a single functional block, one functional block may be divided into multiple blocks, or some functions may be moved to another functional block.Furthermore, the functions of multiple functional blocks having similar functions may be processed in parallel or in time-sharing by a single piece of hardware or software.

[0107] The order in which the steps in the flowchart are executed is merely an example for specifically explaining the present disclosure, and an order other than the above may be used. Also, some of the steps may be executed simultaneously (in parallel) with other steps.

[0108] In addition, this disclosure also includes forms obtained by applying various modifications to the embodiments that a person skilled in the art would think of, and forms realized by arbitrarily combining the components and functions of the embodiments within the scope that does not deviate from the intent of this disclosure. [Explanation of symbols]

[0109] 1, 1e, 1f, 1g lighting systems 1a First lighting system 1b Second lighting system 1c Third Lighting System 10, 10e, 10f, 10g Lighting device (light source) 10a 1st lighting device (1st light source section) 10b Second lighting device (second light source section) 11 Light source (light source section, first light source section, second light source section) 20 Lighting control device 21 Control section A1, B1, C1 1st light irradiation area A2, B2, C2 2nd light irradiation area

Claims

1. a control unit that outputs a control signal that can control each of a plurality of light source units that output light so that light is irradiated at two or more points on the irradiation surface; the control signal is a dynamic output signal that periodically repeats an increase and decrease so as to change the light output of the plurality of light source units, and includes a signal that combines an output signal that increases the light output of the plurality of light source units while enlarging a light irradiation area of ​​light that is irradiated on the irradiation surface, and an output signal that decreases the light output of the plurality of light source units while reducing the light irradiation area, At least two of the control signals transmitted to the plurality of light source units are not identical in phase. Lighting control device.

2. a control unit that outputs a control signal that can control each of a plurality of light source units that output light so that light is irradiated at two or more points on the irradiation surface; the control signal is a dynamic output signal that periodically repeats an increase and decrease so as to change the light output of the plurality of light source units, and includes a signal that combines an output signal that increases the light output of the plurality of light source units while enlarging a light irradiation area of ​​light that is irradiated on the irradiation surface, and an output signal that decreases the light output of the plurality of light source units while reducing the light irradiation area, The phases of the control signals transmitted to the plurality of light source units are not the same, and the phases of the control signals transmitted to two or more light source units that irradiate light onto adjacent predetermined areas on the irradiation surface onto which the light output from each of the plurality of light source units is irradiated are not the same. Lighting control device.

3. The control signals output to the plurality of light source units have the same period. The lighting control device according to claim 1 or 2.

4. The control signals output to the plurality of light source units have different periods. The lighting control device according to claim 1 or 2.

5. When the light output from each of the plurality of light source units is irradiated onto the irradiation surface, the difference in maximum illuminance on each of the irradiation surfaces is less than 60%. The lighting control device according to any one of claims 1 to 4.

6. When the light output from each of the plurality of light source units is irradiated onto the irradiation surface, the difference in maximum illuminance on each of the irradiation surfaces is 60% or more. The lighting control device according to any one of claims 1 to 4.

7. When the light output from each of the plurality of light source units is irradiated onto the irradiation surface, the light irradiated onto the irradiation surface transitions linearly. The lighting control device according to any one of claims 1 to 6.

8. When the light output from each of the plurality of light source units is irradiated onto the irradiation surface, the light irradiated onto the irradiation surface transitions into a planar shape. The lighting control device according to any one of claims 1 to 6.

9. A lighting control device according to any one of claims 1 to 8; a plurality of light source units capable of outputting light to the irradiation surface; Lighting equipment.

10. a first light source unit capable of outputting light to an irradiation surface; a second light source unit capable of outputting light to the irradiation surface; a control unit that outputs a control signal capable of controlling each of the first light source unit and the second light source unit, the first light source unit irradiates a first light irradiation area on the irradiation surface with output light; the second light source unit irradiates the output light onto a second light irradiation area on the irradiation surface; the control signal is a dynamic output signal that periodically repeats an increase and decrease so that the light outputs of the first light source unit and the second light source unit are changed, and includes a signal that combines an output signal that increases the light outputs of the first light source unit and the second light source unit while enlarging the first light irradiation area and the second light irradiation area, and an output signal that decreases the light outputs of the first light source unit and the second light source unit while reducing the first light irradiation area and the second light irradiation area, The phases of the control signals transmitted to the first light source unit and the second light source unit are not the same. Lighting equipment.

11. A lighting control device according to any one of claims 1 to 8; a plurality of light source units capable of outputting light to the irradiation surface; Lighting system.

12. Each of the plurality of light source units outputs light so that the light is irradiated at two or more points on the irradiation surface; outputting a control signal for controlling each of the plurality of light source units; the control signal is a dynamic output signal that periodically repeats an increase and decrease so as to change the light output of the plurality of light source units, and includes a signal that combines an output signal that increases the light output of the plurality of light source units while enlarging a light irradiation area of ​​light that is irradiated on the irradiation surface, and an output signal that decreases the light output of the plurality of light source units while reducing the light irradiation area, At least two of the control signals transmitted to the light source unit have different phases. Lighting control methods.

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