JP2024018494A - Lighting control equipment, lighting control systems and lighting equipment - Google Patents

Abstract

An object of the present invention is to provide a lighting control device, a lighting control system, and a lighting device that can increase the visibility and guidance to people using light. A lighting control device 2 includes a control section 20 that outputs control signals for controlling each of a first lighting device 10a and a second lighting device 10b, and a control section 20 that outputs control signals for controlling each of a first lighting device 10a and a second lighting device 10b, and It includes a sensor that performs sensing and an analysis unit that analyzes information acquired by the sensor. Further, the control signal is a dynamic signal that repeatedly increases and decreases the output of light emitted by each of the first lighting device 10a and the second lighting device 10b. Then, the control unit 20 outputs a control signal that controls the first lighting device 10a and the second lighting device 10b to change the scene of light emitted from each, based on the result of the analysis of the information by the analysis unit. [Selection diagram] Figure 4

Description

The present disclosure relates to a lighting control device, a lighting control system, and a lighting device.

The lighting control device of Patent Document 1 includes a lighting device control section that controls the lighting device using lighting device control information that controls the lighting device for forming a selected lighting pattern or shadow pattern.

JP2021-174668A

Conventional lighting control devices simply change illuminance, and may not be able to sufficiently attract and guide people.

Therefore, an object of the present disclosure is to provide a lighting control device, a lighting control system, and a lighting device that can increase the visibility and guidance to people using light.

A lighting control device according to an aspect of the present disclosure includes a control unit that outputs a control signal to control each of a first light source unit and a second light source unit, and a control unit that senses the surroundings of the first light source unit and the second light source unit. and an analysis unit that analyzes information acquired by the sensor, and the control signal is dynamic such that the output of light emitted by each of the first light source unit and the second light source unit repeatedly increases and decreases. The control unit controls the first light source unit and the second light source unit to change the scene of light emitted by each of the first light source unit and the second light source unit, based on the result of the analysis of the information by the analysis unit. Outputs a control signal.

Further, the lighting control system according to one aspect of the present disclosure includes a lighting control device, wherein the maximum value of the output value of light output from the first light source section is P1, and the lighting control system is immediately after the maximum value P1, and the The maximum value of the output value of light output from the second light source section is set as P2, the maximum value immediately after the maximum value P1 of the output value of light output from the first light source section is set as P3, and the maximum value Assuming that the time difference between the time point P1 and the time point of the maximum value P2 is t1, and the time difference between the time point of the maximum value P2 and the time point of the maximum value P3 is t2, the time difference between the time point P1 and the time point of the maximum value P2 is t2. When changing the output pattern of the first light source section and the second light source section, each of the first light source section and the second light source section is arranged in line in this order from one side of the passage to the other side. If t2>t1, the control unit controls the control unit so that t1 becomes shorter than the reference value when changing the output pattern of the light source unit for realizing the light scene, or The output of light emitted by each of the first light source section and the second light source section is controlled so that the light output is longer than the value.

Further, a lighting control system according to an aspect of the present disclosure includes a lighting control device, and the control signal includes a low output region including a minimum value of the control signal, and an output of the control signal that is lower than the low output region. The signal has a high output area that is higher than the low output area and includes a maximum value of the control signal, and is a dynamic signal that repeats the low output area and the high output area, P1' is a value obtained by multiplying the first minimum value in the low output region by 1.03, and P2' is a value obtained by multiplying the maximum value in the high output region immediately after the first minimum value by 0.97 over time, P3' is a value obtained by multiplying the local maximum value by 0.97 and is immediately after the value P2' over time, and a second minimum value in the low output region immediately after the maximum value over time is P3'. The value multiplied by 1.03 is set as P4', the value P1' and the value P2' exist between the first minimum value and the maximum value, and the value P3' and the value P4' are , exists between the local maximum value and the second minimum value in the low output region immediately after the local maximum value over time, and the transition time from the value P1' to the value P2' is ta', and the Assuming that the transition time from the value P3' to the value P4' is tb', the control section controls at least one of ta' and tb' when changing the output pattern of the light source section for realizing a light scene. The output of light emitted by each of the first light source section and the second light source section is controlled such that the length of the light source section is shorter than the reference value or longer than the reference value.

Further, a lighting device according to one aspect of the present disclosure includes a lighting control device, and a first light source section and a second light source section that can emit light to a surface to be illuminated.

According to the lighting control device and the like of the present disclosure, it is possible to increase the visibility and guidance to people using light.

FIG. 1 is a block diagram showing a lighting system according to an embodiment. FIG. 2 is a schematic diagram showing a case where each of a plurality of illumination devices irradiates light onto an irradiated surface. FIG. 3 is a diagram showing control signals. FIG. 4 is a schematic diagram showing a case where the color of light irradiated onto the illuminated surface by each of the plurality of illumination devices is changed from that in FIG. 2. FIG. 5 is a flowchart showing an example 1 of operation of the lighting system according to the embodiment. FIG. 6 is a flowchart showing a second operation example of the lighting system according to the embodiment. FIG. 7 is a flowchart showing a third operation example of the lighting system according to the embodiment. FIG. 8 is a flowchart showing a fourth example of operation of the lighting system according to the embodiment. FIG. 9 is a flowchart showing operation example 5 of the lighting system according to the embodiment. FIG. 10 is a diagram showing light output values. FIG. 11A is a diagram showing an output pattern. FIG. 11B is another diagram showing the output pattern. FIG. 12 is a diagram showing control signals. FIG. 13A is another diagram showing control signals. FIG. 13B is yet another diagram showing control signals.

Embodiments of the present disclosure will be described below with reference to the drawings. Note that the embodiments described below each represent a specific example of the present disclosure. Therefore, the numerical values, shapes, materials, components, arrangement positions and connection forms of the components, steps, order of steps, etc. shown in the following embodiments are merely examples and do not limit the present disclosure. do not have.

Each figure is a schematic diagram and is not necessarily strictly illustrated. Therefore, for example, the scale etc. of each figure do not necessarily match. Further, in each figure, substantially the same configurations are denoted by the same reference numerals, and overlapping explanations will be omitted or simplified.

(Embodiment)
<Configuration and functions>
A lighting system 1 according to the following embodiment will be explained using FIGS. 1 to 4.

FIG. 1 is a block diagram showing a lighting system 1 according to an embodiment. FIG. 2 is a schematic diagram showing a case where each of the plurality of illumination devices 10 irradiates light onto an irradiated surface. FIG. 3 is a diagram showing control signals. FIG. 4 is a schematic diagram showing a case where the color of light irradiated onto the illuminated surface by each of the plurality of illumination devices 10 is changed from that in FIG. 2.

As shown in FIG. 1, the lighting system 1 is an affordance lighting system that can guide people by adjusting the illumination mode of light emitted from the lighting device 10. For example, the lighting system 1 of the present embodiment can guide people in a predetermined direction, gather guided people in a predetermined area, or disperse people gathered in a predetermined area by adjusting the lighting mode. You can be induced to do so. For example, the savannah effect is known, in which people are guided to areas with bright vertical illuminance rather than areas with dark vertical illuminance. For this reason, since lighting system 1 illuminates the ground, it is technically different from the savanna effect, which is related to vertical illuminance, but the light scene is changed to achieve an effect similar to the savanna effect. , it is possible to guide people by appealing to their emotions through the Savannah Effect.

Here, the light scene is simply a scene in which lighting is always on, or a scene in which affordance lighting is performed. A scene in which affordance lighting is performed is a scene realized by a dynamic control signal that repeatedly increases and decreases the light output. Changing the light scene is when performing affordance lighting from a simple always-on scene or when lights are off, when performing another affordance lighting from affordance lighting, and when changing from affordance lighting to a simple always-on scene or when lights are off. . An increase or decrease in the light output includes an increase or decrease in the luminous intensity or illuminance of the light emitted by the illumination device 10, or a change in the color temperature or chromaticity of the light emitted by the illumination device 10.

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.

As shown in FIGS. 1 and 2, the lighting system 1 includes a plurality of lighting devices 10, a lighting control device 2, and a power supply section 30.

[Lighting device 10]
Each of the plurality of lighting devices 10 is, for example, an outdoor lighting device such as a street light, a facility lighting device installed within a facility, or the like. Each of the plurality of lighting devices 10 of this embodiment is arranged along a passage. In FIG. 2, a first lighting device 10a, a second lighting device 10b, and a third lighting device 10c are illustrated as the plurality of lighting devices 10. The first lighting device 10a and the second lighting device 10b, and the second lighting device 10b and the third lighting device 10c are two adjacent arbitrary lighting devices 10 included in the plurality of lighting devices 10. For example, the first lighting device 10a and the second lighting device 10b are examples of a first light source section and a second light source section. Furthermore, the lighting device 10 is a general term for the first lighting device 10a, the second lighting device 10b, and the third lighting device 10c.

Each of the plurality of lighting devices 10 includes a light source 11, a light emission control circuit (not shown), and the like. 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. Further, 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. The light emission control circuit independently controls each LED chip, so that each of the plurality of lighting devices 10 emits light to the irradiated surface and irradiates the irradiated surface with light. Further, the light source 11 may be an example of a first light source section and a second light source section.

When each of the plurality of lighting devices 10 acquires a control signal from the lighting control device 2, each of the plurality of lighting devices 10 lights up in a lighting mode according to the control signal. Each of the plurality of lighting devices 10 has a dimming function and a color adjusting function.

For example, each of the plurality of lighting devices 10 has a dimming function that adjusts the brightness of the light outputted by the light source 11 to a plurality of levels, thereby dimming or brightening the brightness of the outputted light. be able to. In other words, each of the plurality of lighting devices 10 can periodically vary the brightness and darkness of the light it outputs. Here, periodic may be the same period or different periods.

Moreover, each of the plurality of lighting devices 10 can emit white light with a color temperature ranging from a low color temperature such as a light bulb color to a high color temperature such as warm white, neutral white, or daylight color as a color adjusting function. That is, each of the plurality of lighting devices 10 can also periodically fluctuate the hue of the light it outputs. For example, in lighting effects, each of the plurality of lighting devices 10 may periodically change the color temperature so as to repeatedly increase or decrease the redness of the output light.

Note that each of the plurality of lighting devices 10 may change the color of the light it outputs by changing the wavelength of the light it outputs as a lighting effect.

Moreover, each of the plurality of illumination devices 10 is arranged in line along the passage so that the output light can be applied to different parts of the irradiated surface in the passage.

The relationship between the first lighting device 10a, the second lighting device 10b, and the third lighting device 10c among the plurality of lighting devices 10 in FIG. 2, and the first light irradiation area, the second light irradiation area, and the third light irradiation area I will explain about it.

The first lighting device 10a forms a first light irradiation area on the irradiated surface of the passage by emitting light. The second lighting device 10b forms a second light irradiation area on the irradiated surface by emitting light. The third lighting device 10c forms a third light irradiation area on the irradiated surface by emitting light.

The first light irradiation area, the second light irradiation area, and the third light irradiation area are different locations on the irradiation target surface. In FIG. 2, since the first lighting device 10a, the second lighting device 10b, and the third lighting device 10c are arranged in this order, the first light irradiation area, the second light irradiation area, and the third light irradiation area are also formed in this order.

Further, although FIG. 2 illustrates an example using three lighting devices 10, the same applies when two or four or more lighting devices 10 are used.

[Lighting control device 2]
The lighting control device 2 can control the plurality of lighting devices 10 individually or collectively. The lighting control device 2 also outputs a control signal for lighting each of the plurality of lighting devices 10 with a predetermined effect to each of the plurality of lighting devices 10, thereby controlling the plurality of lighting devices 10 using the control signal. It can be illuminated with a predetermined effect according to the user's needs. That is, the lighting control device 2 controls each of the plurality of lighting devices 10 to illuminate in a predetermined scene (effect) indicated by the control signal.

The lighting control device 2 includes an imaging section 22, an image processing section 21, and a control section 20.

The imaging unit 22 is arranged around the plurality of lighting devices 10. That is, the imaging unit 22 is arranged so as to be able to capture images of the surroundings of the plurality of lighting devices 10 including the plurality of lighting devices 10. The imaging unit 22 is a sensor that senses the surroundings of the plurality of lighting devices 10, and images the surroundings of the plurality of lighting devices 10.

The imaging unit 22 can obtain an image of the surroundings as information. The imaging unit 22 outputs the acquired image to the image processing unit 21 in order to process the captured image. The imaging unit 22 captures images at predetermined intervals, and therefore outputs the acquired image to the image processing unit 21 every time it captures an image. Here, images include moving images and still images. Further, the information may include information simply indicating the presence or absence of a person.

The image processing unit 21 is an analysis unit that analyzes an image that is information acquired by the imaging unit 22. The image processing section 21 can process the image captured by the imaging section 22.

Specifically, the image processing unit 21 attempts to extract the person and the plurality of lighting devices 10 included in the acquired image. If the image includes a person, the image processing unit 21 can extract the person from the image. At this time, if the image includes multiple people, the image processing unit 21 can extract the multiple people. Furthermore, the image processing unit 21 can also extract a plurality of lighting devices 10 from the image. Based on the extracted person and the plurality of lighting devices 10, the image processing unit 21 determines whether a person is present within a predetermined distance from one or more lighting devices 10 among the plurality of lighting devices 10. Determine whether or not. The image processing section 21 outputs the determined result to the control section 20.

Note that the image processing unit 21 does not need to determine whether or not the detection has been performed. In this case, the image processing unit 21 may output the detection result to the control unit 20 when the detection is performed.

The control unit 20 outputs a control signal for controlling the light scene emitted by each of the plurality of lighting devices 10 to be changed based on the result of the image analysis by the image processing unit 21. Specifically, the control unit 20 transmits a control signal capable of controlling each of the plurality of lighting devices 10 that emit light so that light is irradiated to a plurality of locations on the illuminated surface in the passageway. Output to each of the devices 10.

The control signal may include a dynamic signal in which the luminous intensity of the light emitted by each of the plurality of lighting devices 10 or the illuminance of the light emitted by each of the plurality of lighting devices 10 repeats increases and decreases. Further, the control signal may include a dynamic signal in which the color of light emitted by each of the plurality of lighting devices 10 repeatedly changes over time.

In addition, as shown in FIG. 3(a), the control signal per cycle is a dynamic output consisting of a signal with a waveform that increases only once and a signal with a waveform that decreases only once. It may also be a signal. Further, the control signal per cycle may be a dynamic output signal consisting of a signal with a waveform that increases twice or more and a signal with a waveform that decreases twice or more. Therefore, the illuminance of the light emitted by each of the first lighting device 10a and the second lighting device 10b per cycle is dynamic, consisting of light whose illuminance increases only once and light whose illuminance decreases only once. It is a light. Furthermore, the illuminance of the light per cycle emitted by each of the first lighting device 10a and the second lighting device 10b is dynamic, consisting of light whose illuminance increases twice or more and light whose illuminance decreases twice or more. It may be light. Note that the control signal may also include one for turning off or turning on the output of the lighting device 10.

Note that the control signals shown in (a) to (d) in FIG. 3 are just examples, and the control signals are not limited to (a) to (d) in FIG. 3.

Moreover, the phases of the respective control signals output to the plurality of lighting devices 10 may be different. Specifically, the control unit 20 may transmit control signals having different phases to each of the plurality of lighting devices 10. That is, the control unit 20 may transmit control signals with different phases to each of the plurality of lighting devices 10. For example, as shown by the solid line and broken line in FIG. The phase of the output waveform of the light emitted by 10b is different.

Furthermore, the cycles of the respective control signals output to the plurality of lighting devices 10 may be the same. In other words, the control signal may be outputted to each of the plurality of lighting devices 10 in different phases.

Note that the cycles of the respective control signals output to the plurality of lighting devices 10 may be different. That is, the control signal may be output to each of the plurality of lighting devices 10 at different cycles.

Here, the image processing performed by the image processing section 21 and the processing performed by the control section 20 will be explained.

For example, the image processing unit 21 may detect that a person is present within a predetermined distance from at least one of the plurality of lighting devices 10 by analyzing the image. The image processing section 21 may output the detected results to the control section 20. At this time, the control unit 20 may output a control signal for controlling the light scene emitted by each of the plurality of lighting devices 10 to be changed based on the result of the image processing unit 21 analyzing the image. For example, as shown in FIG. 3B, the control unit 20 may increase or decrease the maximum value of the light output emitted by each of the plurality of lighting devices 10 based on the result. good.

Further, even if the image processing unit 21 analyzes the image, there are cases in which the image processing unit 21 does not detect the presence of a person within a predetermined distance from at least one of the plurality of lighting devices 10 for a certain period of time or more. In this case as well, the image processing unit 21 may output to the control unit 20 the result that the presence of a person has not been detected for a certain period of time or more. At this time, the control unit 20 controls the light scene emitted by each of the plurality of lighting devices 10 to be the light scene immediately before the change based on the result that the image processing unit 21 did not detect the detection. A control signal may also be output. That is, based on the result, the control unit 20 outputs the second control signal outputted immediately before the first control signal outputted to each of the plurality of lighting devices 10 to each of the plurality of lighting devices 10 again. You may.

Furthermore, the image processing unit 21 may detect the presence of a person in a specific state by analyzing the image. For example, a specific state means extracting the eyes of a person included in an image and estimating the person's line of sight, or extracting the movements of a person included in the image and estimating the person's actions. These include checking the route, moving in the direction perpendicular to the direction of travel (left and right), looking back in the opposite direction to the direction of travel, or slowing down in walking speed. In this case, the presence of a person in a specific state can be detected. The image processing section 21 may output the detected results to the control section 20. At this time, the control unit 20 outputs a control signal that controls the light scene emitted by each of the plurality of lighting devices 10 to be changed based on the detected result of the image processing unit 21 analyzing the image. You can.

Furthermore, by analyzing the image, the image processing unit 21 determines whether a person's line of sight is in the direction of light emitted from at least one of the plurality of lighting devices 10 or from at least one of the plurality of lighting devices 10. It may also be possible to detect that the person is not pointing at the target. For example, by extracting the eyes of a person included in an image and estimating the person's line of sight, it is possible to determine whether the person's line of sight is upward or downward, looking at a terminal device such as a smartphone, the lighting device 10, or a passageway. It can detect when a person is not looking at them, such as when they are facing in the opposite direction. The image processing section 21 may output the detected results to the control section 20. At this time, the control unit 20 outputs a control signal that controls the light scene emitted by each of the plurality of lighting devices 10 to be changed based on the detected result of the image processing unit 21 analyzing the image. You can. Here, the light emission direction is the optical axis direction of the main light emitted from the illumination device 10.

The image processing unit 21 may also detect a crowd (group) and attributes of the crowd by analyzing the image. Furthermore, the image processing unit 21 may extract the first person from the detected crowd. For example, the image processing unit 21 extracts a plurality of people included in the image based on the image, and estimates attributes such as the moving direction of the extracted people, distance between the people, gender, and age. Further, the image processing unit 21 extracts two or more people as one crowd from the image based on the direction of movement, distance between people, and the like. The image processing unit 21 can estimate the leader of the crowd by estimating the moving direction of the extracted crowd. The image processing section 21 may output the detected results to the control section 20. At this time, the control unit 20 determines the scene of light emitted by each of the plurality of lighting devices 10 based on the detected results (crowd, attributes of the crowd, and the person at the front) analyzed by the image processing unit 21. It is also possible to output a control signal for controlling the change in the value.

Furthermore, the attributes of the crowd, such as gender and age, may be determined by majority vote.

Further, the control unit 20 may output a control signal that produces a light scene according to the attribute. For example, if the attribute is male, a control signal may be output to the plurality of lighting devices 10 to produce a cool light color, and if the attribute is female, a control signal may be output to produce a warm light color. The signal may be output to multiple lighting devices 10. Further, for example, if the attribute is young people, a control signal that produces highly saturated light may be output to the plurality of lighting devices 10.

Further, changes in the light output emitted by each of the plurality of lighting devices 10 include increasing the light output emitted by each of the plurality of lighting devices 10 in FIG. 3(b), and fading in FIG. 3(c). Each control output to the plurality of lighting devices 10 in FIG. 3(d) makes the in-time shorter than the reference time, changes the light color emitted by each of the plurality of lighting devices 10 in FIGS. 2 and 4. At least one of the four changes includes changing the phase of the signal.

Note that the fade-in time in FIG. 3(c) is shorter than the fade-out time. Further, the reference time is a preset time, which is less than or equal to the fade-out time.

[Power supply section 30]
As shown in FIG. 1, the power supply section 30 has a function of supplying power to the plurality of lighting devices 10 and the lighting control device 2. The power supply section 30 is, for example, a power supply circuit in which a plurality of electronic components are mounted on a printed circuit board. The power supply unit 30 generates, for example, driving power for causing each of the plurality of light sources 11 to emit light. Specifically, the power supply section 30 generates driving power for causing the light sources 11 to emit light, and supplies this driving power to each light source 11. That is, the power supply unit 30 converts commercial AC power into DC power, and supplies the DC power to each light source 11 as driving power for causing the light source 11 to emit light, thereby causing the light emitting element of the light source 11 to emit light. Note that the power supply section 30 may be provided in each of the plurality of lighting devices 10.

<Summary>
The lighting control device 2 of this embodiment can increase or decrease the output of light emitted by each of the plurality of lighting devices 10 by collectively controlling the plurality of lighting devices 10 in an interlocked manner. For this reason, for example, to a person present in the passageway, the entire plurality of light irradiation areas formed by the light irradiated onto the irradiation surface appear to gradually become brighter or darker.

Moreover, the lighting control device 2 can make the fade-in time shorter than the reference time and the fade-out time by collectively controlling the plurality of lighting devices 10 in an interlocking manner. For this reason, for example, to a person in the aisle, during fade-in, the light across multiple light irradiation areas formed by the light irradiated on the irradiated surface appears to suddenly become brighter, and the fade-out becomes longer. Looks like.

Further, the lighting control device 2 can change the color of light emitted by each of the plurality of lighting devices 10 by collectively controlling the plurality of lighting devices 10 in an interlocked manner. Therefore, for example, to a person present in the passageway, the light color of the entire plurality of light irradiation areas formed by the light irradiated onto the irradiation surface appears to change.

In addition, the lighting control device 2 changes the phase of each control signal output to each of the plurality of lighting devices 10, so that the plurality of light irradiation areas formed along the path can be shifted from one side to the other. It is possible to create a scene that gradually becomes brighter or darker toward the viewer. Further, the plurality of light irradiation areas formed along the passage can gradually change the light color from one side of the passage to the other side. For example, in a plurality of light irradiation areas, the light color can be gradually changed from yellow light to blue light on the chromaticity diagram. From this, for example, for a person in an aisle, the brightness and/or light color of the multiple light irradiation areas formed by the light irradiated on the irradiated surface gradually changes from one side of the aisle to the other. It is possible to create a changing performance. Furthermore, by adjusting the phase difference between the respective control signals, it is possible to realize an effect in which dynamic light transitions are adjusted.

In this way, by irradiating light onto the illuminated surface of the passageway, it is possible to guide people from one point to another by creating a change in light (transition). This makes it possible to disperse people gathered in a predetermined area or to gather people in a predetermined area.

In addition, in the lighting system 1 of the present embodiment, in addition to changing the luminous intensity or illuminance, a lighting effect that combines changing the color temperature and/or light transition speed (phase difference) can be used to create an effect for guiding people. can be increased.

<Processing operation>
Next, processing operations of the lighting control device 2 and the lighting device 10 in this embodiment will be explained.

[Operation example 1]
In this operation example, the processing operation when a person is present within a predetermined distance from the lighting device 10 will be mainly described using FIG. 5 .

FIG. 5 is a flowchart showing an example 1 of operation of the lighting system according to the embodiment.

First, the imaging unit 22 acquires an image of the surroundings (S11). The imaging unit 22 outputs the acquired image to the image processing unit 21 in order to process the captured image.

Next, upon acquiring the image from the imaging unit 22, the image processing unit 21 analyzes the acquired image (S12).

Next, the image processing unit 21 attempts to extract the person and the plurality of lighting devices 10 included in the image by analyzing the image. When the image processing unit 21 is able to extract the person and the plurality of lighting devices 10, the image processing unit 21 determines that the person is at a predetermined distance from one or more of the lighting devices 10 from the extracted person and the plurality of lighting devices 10. It is determined whether the presence within the range is detected (S13).

If the image processing unit 21 does not detect that a person is within a predetermined distance from one or more of the plurality of lighting devices 10 (NO in S13), the process returns to step S11, and the process shown in FIG. Repeat the processing operations in the flowchart.

On the other hand, when the image processing section 21 detects that a person is present within a predetermined distance from one or more of the plurality of lighting devices 10 (YES in S13), the image processing section 21 transmits the detected result to the control section. Output to 20.

Next, the control unit 20 outputs a control signal to control the light scene emitted by each of the plurality of lighting devices 10 to be changed based on the result of the image analysis by the image processing unit 21 (S14). Then, the illumination control device 2 ends the processing operation shown in FIG. 5, and returns to step S11 to repeat the processing operation every time the imaging unit 22 captures an image at a predetermined interval.

In this manner, in this operation example, for example, when the plurality of lighting devices 10 are off, or when the plurality of lighting devices 10 are lit in a normal scene (simply a constantly lit scene), a person When approaching the lighting device 10, the control unit 20 outputs a control signal that causes the plurality of lighting devices 10 to change the light scene, so that the plurality of lighting devices 10 change the light scene. In addition, when affordance lighting is already being performed, when a person approaches the lighting device 10, the control unit 20 outputs a control signal that changes the light scene to provide a different affordance lighting. The lighting device 10 changes the light scene. As a result, for example, it is possible to perform affordance lighting that brightens the area under a person's feet, or to perform affordance lighting that gradually becomes brighter from one side of the aisle to the other.

[Operation example 2]
In this operation example, the processing operation when the presence of a person within a predetermined distance from the lighting device 10 is not detected for a certain period of time or more after the presence of a person is no longer detected will be explained using FIG. 6. . Processing operations that are the same as those in FIG. 5 are given the same reference numerals, and description thereof will be omitted as appropriate.

FIG. 6 is a flowchart showing a second operation example of the lighting system according to the embodiment.

First, through the processing of steps S11 and S12, the image processing unit 21 detects the presence of a person within a predetermined distance from at least one of the plurality of lighting devices 10 for a certain period of time or more by analyzing the image. It is determined whether or not there was one (S13a). Note that the image processing unit 21 does not need to determine whether or not the detection has occurred. In this case, if the image processing unit 21 does not detect the detection, the image processing unit 21 may output a result indicating that the detection has not been carried out to the control unit 20.

If the image processing unit 21 does not detect the presence of a person within a predetermined distance from at least one of the plurality of lighting devices 10 for a predetermined period of time or more (NO in S13a), the image processing unit 21 returns to step S11 and performs the flowchart in FIG. Repeat the processing operation.

On the other hand, if the image processing unit 21 detects the presence of a person within a predetermined distance from at least one of the plurality of lighting devices 10 within a certain period of time (YES in S13a), the image processing unit 21 transmits the detection result to the control unit 20. Output.

Next, the control unit 20 performs control so that the scene of light emitted by each of the plurality of lighting devices 10 becomes the scene of light immediately before the change based on the result of the image processing unit 21 analyzing the image. A signal is output (S14a). In other words, the control unit 20 outputs the second control signal output immediately before the first control signal output to each of the plurality of lighting devices 10 based on the result that the image processing unit 21 did not detect the detection. It is output again to each of the plurality of lighting devices 10. For example, the affordance lighting that is the scene being executed may be terminated and turned off, or the scene may be changed to just a normal scene. Further, when affordance lighting is being executed, the control unit 20 outputs a control signal that changes the light scene to the original affordance lighting, so that the plurality of lighting devices 10 change the light scene. You may. Then, the illumination control device 2 ends the processing operation shown in FIG. 6, and returns to step S11 to repeat the processing operation every time the imaging unit 22 captures an image at a predetermined time interval.

[Operation example 3]
In this operation example, the processing operation when there is a person in a specific state will be mainly described using FIG. 7. Processing operations that are the same as those in FIG. 5 are given the same reference numerals, and description thereof will be omitted as appropriate.

FIG. 7 is a flowchart showing a third operation example of the lighting system according to the embodiment.

First, through the processes of steps S11 to S13, the image processing unit 21 analyzes the image to determine whether or not it has detected that there is a person in a specific state (S13b). .

If the image processing unit 21 does not detect the presence of a person in a specific state (NO in S13b), the process returns to step S11 and repeats the processing operations in the flowchart of FIG.

On the other hand, when the image processing unit 21 detects that there is a person in a specific state (YES in S13b), the image processing unit 21 outputs the detection result to the control unit 20.

Then, the illumination control device 2 completes the processing operation shown in FIG. 7 through step S14, and returns to step S11 to repeat the processing operation every time the imaging unit 22 captures an image at a predetermined time interval.

[Operation example 4]
In this operation example, processing operations when a person does not direct their line of sight toward the illumination device 10 or the light emission direction of the illumination device 10 will be mainly described using FIG. 8 . Processing operations that are the same as those in FIG. 5 are given the same reference numerals, and description thereof will be omitted as appropriate.

FIG. 8 is a flowchart showing a fourth example of operation of the lighting system according to the embodiment.

First, through the processes of steps S11 to S13, the image processing unit 21 analyzes the image to identify at least one of the plurality of lighting devices 10 or at least one of the plurality of lighting devices 10. It is determined whether it is detected that the person is not directing his or her line of sight in the direction in which the emitted light is emitted (S13c).

When the image processing unit 21 does not detect that the person is not directing his/her line of sight toward at least one of the plurality of lighting devices 10 or the direction in which the light emitted from at least one of the plurality of lighting devices 10 is emitted. (NO in S13c), the process returns to step S11 and the processing operations in the flowchart of FIG. 8 are repeated.

On the other hand, the image processing unit 21 detects that the person is not directing his/her line of sight toward at least one of the plurality of lighting devices 10 or the direction in which the light emitted from at least one of the plurality of lighting devices 10 is emitted. If so (YES in S13c), the detected result is output to the control unit 20.

Then, the illumination control device 2 completes the processing operation shown in FIG. 8 through step S14, and returns to step S11 to repeat the processing operation every time the image capturing section 22 captures an image at a predetermined time interval.

[Operation example 5]
In this operation example, processing operations when detecting a crowd and the attributes of the crowd will be described using FIG. 9.

FIG. 9 is a flowchart showing operation example 5 of the lighting system according to the embodiment.

First, after the process of step S11, the image processing unit 21 detects the crowd and the attributes of the crowd by analyzing the image (S21). For example, the image processing unit 21 extracts a plurality of people included in the image based on the image, and estimates attributes such as the moving direction of the extracted people, distance between the people, gender, and age. Further, the image processing unit 21 extracts two or more people as one crowd from the image based on the direction of movement, distance between people, and the like.

Next, the image processing unit 21 estimates the leader of the crowd by estimating the moving direction of the extracted crowd (S22). Then, the illumination control device 2 ends the processing operation shown in FIG. 9, and returns to step S11 to repeat the processing operation every time the imaging unit 22 captures an image at a predetermined time interval.

This operation example in FIG. 9 may be provided between steps S13 and S14 in FIGS. 5, 7, and 8.

<Effect>
Next, the effects of the lighting control device 2 and the lighting device 10 in this embodiment will be explained.

As described above, the lighting control device 2 according to the present embodiment includes a control section 20 that outputs control signals for controlling each of the first lighting device 10a and the second lighting device 10b, and the first lighting device 10a and the second lighting device 10b. It includes a sensor that senses the surroundings of the lighting device 10b and an analysis unit that analyzes information acquired by the sensor. Further, the control signal is a dynamic signal such that the output of light emitted by each of the first lighting device 10a and the second lighting device 10b repeatedly increases and decreases. Then, the control unit 20 outputs a control signal that controls the first lighting device 10a and the second lighting device 10b to change the scene of light emitted by each, based on the result of the analysis of the information by the analysis unit.

According to this, each of the first lighting device 10a and the second lighting device 10b can acquire a control signal generated based on information analyzed by the analysis unit. Each of the first lighting device 10a and the second lighting device 10b emits dynamic light that periodically increases and decreases based on the acquired control signal. For example, even when each of the first lighting device 10a and the second lighting device 10b is turned on in a simple normal scene or another affordance lighting, the light output periodically increases and decreases based on the analysis result. It can be changed into a dynamic light scene. Therefore, when the surface to be illuminated is irradiated with light whose brightness increases and decreases periodically, people begin to pay attention to the changing bright light.

Therefore, the light can increase the visibility and guidance to people. As a result, this lighting control device 2 can realize affordance lighting.

The lighting device 10 of the present embodiment also includes a lighting control device 2, a first light source section (light source 11) and a second light source section (another light source 11) that can emit light to a surface to be illuminated. Equipped with

In this case as well, the same effects as described above are achieved.

Furthermore, in the lighting control device 2 of this embodiment, the sensor is the imaging unit 22 that images the surroundings of the first lighting device 10a and the second lighting device 10b. Further, the information is an image. Further, the analysis section is an image processing section 21 that processes the image captured by the imaging section 22. When the image processing unit 21 analyzes the image and detects that a person is present within a predetermined distance from at least one of the first lighting device 10a and the second lighting device 10b, the control unit 20 Based on the result of image analysis, the image processing unit 21 outputs a control signal for controlling the scene of light emitted by each of the first lighting device 10a and the second lighting device 10b to be changed.

According to this, the presence of a person approaching the lighting device 10 can be detected based on the image. Therefore, for example, even if the first lighting device 10a and the second lighting device 10b are turned on in a simple normal scene or another affordance lighting, a person may turn on the first lighting device 10a and the second lighting device 10b. If they approach, the scene of the light emitted by the first lighting device 10a and the second lighting device 10b will be changed. Thereby, the first lighting device 10a and the second lighting device 10b can be changed to affordance lighting that emits dynamic light that periodically increases and decreases. Therefore, the light can further improve the visibility and guidance to people.

Furthermore, in the lighting control device 2 of this embodiment, the sensor is the imaging unit 22 that images the surroundings of the first lighting device 10a and the second lighting device 10b. Further, the information is an image. Further, the analysis section is an image processing section 21 that processes the image captured by the imaging section 22. If the image processing unit 21 analyzes the image and does not detect the presence of a person within a predetermined distance from at least one of the first lighting device 10a and the second lighting device 10b for a certain period of time or more, the control unit 20 outputs a control signal for controlling the scene of light emitted by each of the first lighting device 10a and the second lighting device 10b to be changed based on the result that the image processing unit 21 did not detect the detection.

According to this, if there is no person near the lighting device 10 for a certain period of time or more, for example, the affordance lighting that is the scene being executed may be ended and turned off, or the scene may be changed to just a normal scene. You can. Since the affordance lighting scene is not executed when there is no person near the lighting device 10, an increase in the processing load on the lighting control device 2 can be suppressed.

Furthermore, in the lighting control device 2 of the present embodiment, the control unit 20 controls the scene of light emitted by each of the first lighting device 10a and the second lighting device 10b based on the detection result of the image processing unit 21. A control signal is output to control the light scene to match the scene immediately before the change.

According to this, when there is no person near the lighting device 10, it is possible to change, for example, the scene being executed, affordance lighting, to a mere normal scene. Thereby, when there is no person near the lighting device 10, the affordance lighting scene is not executed, so it is possible to suppress an increase in the processing load of the lighting control device 2.

In addition, in the lighting control device 2 of the present embodiment, when the image processing unit 21 analyzes the image and detects that there is a person in a specific state, the control unit 20 performs image processing. The unit 21 analyzes the image and, based on the detected results, outputs a control signal for controlling the scene of light emitted by each of the first lighting device 10a and the second lighting device 10b to be changed.

According to this, by changing the light scene, it is possible to make a person in a specific state aware of a change in illumination. Therefore, the light can further improve the visibility and guidance to people.

In the lighting control device 2 of the present embodiment, the image processing unit 21 analyzes the image so that at least one of the first lighting device 10a and the second lighting device 10b, or the first lighting device 10a and the second lighting device 10b When it is detected that the person is not looking in the direction of light emitted from at least one of the two illumination devices 10b, the control unit 20 causes the image processing unit 21 to analyze the image and perform an operation based on the detected result. Then, a control signal is outputted to control the first illumination device 10a and the second illumination device 10b to change the scene of light emitted by each of them.

According to this, by changing the light scene, it is possible to make people who are not looking at the user notice a change in the illumination. Therefore, the light can further improve the visibility and guidance to people.

Furthermore, in the lighting control device 2 of this embodiment, the image processing unit 21 detects the crowd and the attributes of the crowd by analyzing the image. Then, the control unit 20 controls the image processing unit 21 to analyze the image and change the scene of light emitted by each of the first lighting device 10a and the second lighting device 10b based on the detected result. Outputs a control signal.

According to this, by changing the light scene, it is possible to make the crowd aware of the change in the lighting. In addition, the lighting scene can be changed according to the attributes of the crowd. Therefore, the light can further improve the visibility and guidance to the crowd.

Furthermore, in the lighting control device 2 of this embodiment, the image processing unit 21 extracts the first person from the detected crowd.

According to this, by changing the light scene, it is possible to make the front person in the crowd aware of the change in illumination. Therefore, by guiding the leader with light, it is possible to also guide the followers of the crowd.

In addition, in the lighting control device 2 of the present embodiment, each of the first lighting device 10a and the second lighting device 10b changes in the output of light emitted by each of the first lighting device 10a and the second lighting device 10b. The first lighting device 10a and the second lighting device increase the output of emitted light, make the fade-in time shorter than the reference time, and change the color of light emitted by each of the first lighting device 10a and the second lighting device 10b. At least one of the four changes includes changing the phase of each control signal output to 10b.

According to this, each of the first lighting device 10a and the second lighting device 10b emits dynamic light that periodically increases and decreases so that the luminous intensity or illuminance changes based on the control signal. Therefore, by irradiating the irradiated surface with light whose brightness is periodically increased and decreased, it is possible to further improve the eye-catching and guiding properties of the light.

Furthermore, the fade-out transition time can be made longer than the fade-in transition time. Therefore, the light can further improve the attracting and guiding ability of people.

In addition, since the chromaticity of the emitted light or the chromaticity of the light of the irradiated surface can be made different, the color tone of the light emitted by the first lighting device 10a and the second lighting device 10b and the light irradiated to the irradiated surface can be changed. As a result, people are motivated to move in response to these changes, so that the light can further enhance the ability to attract people's attention and guide them.

In addition, when the phases of the control signals are made to differ, each of the first lighting device 10a and the second lighting device 10b operates in such a way that the light output repeats increasing and decreasing with a shifted phase, based on the control signal. emits a certain light. For this reason, the irradiated surface is repeatedly irradiated with light whose brightness is out of phase, so that the light irradiated onto the irradiated surface can transit at substantially the same speed. Thereby, it is possible to further improve the ability to attract people's attention and guide the light.

(Modification 1 of the embodiment)
This modification differs from the embodiment in that the control signal is changed. Other configurations in this embodiment are the same as those in the embodiment unless otherwise specified, and the same configurations are denoted by the same reference numerals and detailed explanations regarding the configurations will be omitted.

This modification will be explained using FIG. 10. FIG. 10 is a diagram showing light output values.

As shown in FIG. 10, when changing the output patterns of the first lighting device 10a and the second lighting device 10b for realizing a light scene, the control unit 20 controls the first lighting device 10a and the second lighting device The maximum value P, the minimum value B, the average value ((P+B)/2) of the maximum value P and the minimum value B, or the minimum value B of the output value of light output from at least one illumination device 10 among the lighting devices 10b. so that the average value of output values from to maximum value P (integral value of output value/time from minimum value B to maximum value P) becomes larger than the reference value or smaller than the reference value. The output of light emitted by at least one illumination device 10 is controlled. That is, the control unit 20 may control the output of light emitted by at least one lighting device 10 so that the maximum value P becomes larger than the first reference value or smaller than the first reference value. Further, the control unit 20 may control the output of light emitted by at least one lighting device 10 so that the minimum value B becomes larger than the second reference value or smaller than the second reference value. Further, the control unit 20 controls the output of the light emitted by at least one lighting device 10 so that the average value ((P+B)/2) becomes larger than the third reference value or smaller than the third reference value. It may be controlled. In addition, the control unit 20 controls the control unit 20 to determine whether the average value of the output values (integral value of the output values/time from the minimum value B to the maximum value P) becomes larger than the fourth reference value, or is smaller than the fourth reference value. The output of light emitted by at least one illumination device 10 may be controlled such that the light output is reduced. The first reference value, the second reference value, the third reference value, and the fourth reference value are examples of reference values, and each may be a different value. The light output value includes the control signal, the luminous intensity, illuminance, color temperature, and chromaticity of the light output by the lighting device 10. Here, the change in the output pattern includes a change in the luminous intensity, luminous flux, illuminance, color temperature, and chromaticity of the light output by the lighting device 10.

Here, changes in the output pattern will be explained using FIGS. 11A and 11B. FIG. 11A is a diagram showing an output pattern. FIG. 11B is another diagram showing the output pattern.

FIG. 11A illustrates output patterns for red, blue, green, and yellow. For example, in FIG. 11A, the output values of output patterns 1 and 2, which are the maximum values, are 100. Therefore, even if the light color included in at least one of red, blue, green, and yellow output patterns changes, the luminous flux does not change. However, even when the output value of red in output pattern 1 is 100 and the output value of other colors is 0, when the output value of blue in output pattern 2 is 100 and the output value of other colors is 0, the light color is Change. In this way, a change in the light color is also included in the change in the output pattern.

As another example, FIG. 11B illustrates output patterns for red, blue, green, and yellow. For example, in FIG. 11B, the output value of output pattern 1, which is the maximum value, is 100, and the output value of output pattern 2 is 50. Therefore, when the light color included in at least one of red, blue, green, and yellow output patterns changes, the luminous flux changes. In addition, since output pattern 1 is red, but output pattern 2 is blue, the light color has changed. In this way, changes in the output value and light color are also included in changes in the output pattern.

In this modification, the surface to be illuminated is irradiated with light whose brightness increases and decreases periodically, causing people to pay attention to the changing bright light. Therefore, the light can increase the visibility and guidance to people. As a result, this lighting control device 2 can realize affordance lighting.

Further, when changing the output pattern of the first lighting device 10a and the second lighting device 10b for realizing a light scene, the control unit 20 also controls the chromaticity of the light output from at least one lighting device 10. Controlling at least one lighting device 10 differently. In this case as well, the light can further enhance the visibility and guidance to people.

(Modification 2 of embodiment)
This modification differs from the embodiment in that the control signal is changed. Other configurations in this embodiment are the same as those in the embodiment unless otherwise specified, and the same configurations are denoted by the same reference numerals and detailed explanations regarding the configurations will be omitted.

This modification will be explained using FIG. 12. FIG. 12 is a diagram showing control signals. Moreover, the lighting control system of this modification may include the above-mentioned lighting control device.

As shown in FIG. 12, in this modification, the maximum value of the output value of light output from the first lighting device 10a is set to P1. Further, the maximum value of the output value of light output from the second lighting device 10b, which is immediately after the maximum value P1, is assumed to be P2. Further, in the output value of light output from the first lighting device 10a, the maximum value immediately after the maximum value P1 is set as P3. Further, the time difference between the time of the maximum value P1 and the time of the maximum value P2 is assumed to be t1. Further, the time difference between the time of the maximum value P2 and the time of the maximum value P3 is assumed to be t2. When the control unit 20 changes the output pattern of the first lighting device 10a and the second lighting device 10b for realizing a light scene, each of the first lighting device 10a and the second lighting device 10b When they are arranged in this order along the other side, when t2>t1, the control unit 20 controls the output of light emitted by the lighting device 10. Specifically, when t2>t1, when changing the output pattern of the illumination device 10 for realizing a light scene, the control unit 20 adjusts the output pattern such that t1 becomes shorter than a reference value or The output of light emitted by each of the first lighting device 10a and the second lighting device 10b is controlled so that the light output is longer than the value.

In this modification, if t1 is set to be shorter than the reference value, the phase difference between the two adjacent lighting devices 10 (the first lighting device 10a and the second lighting device 10b) becomes smaller. At this time, in each light irradiation region irradiated onto the irradiated surface in the passage, the transition speed due to the light emitted by the two adjacent illumination devices 10 appears to be fast. Furthermore, if t1 is set to be longer than the reference value, the phase difference between two adjacent lighting devices 10 (the first lighting device 10a and the second lighting device 10b) becomes larger, and the length of t1 becomes the length of t2. approach. At this time, in each light irradiation region irradiated onto the irradiated surface in the passage, the transition speed due to the light emitted by the two adjacent illumination devices 10 appears to be slow.

Therefore, according to this lighting control device 2, it is possible to increase the visibility and guidance to people by the light. As a result, this lighting control device 2 can realize affordance lighting.

(Variation 3 of the embodiment)
This modification differs from the embodiment in that the control signal is changed. Other configurations in this embodiment are the same as those in the embodiment unless otherwise specified, and the same configurations are denoted by the same reference numerals and detailed explanations regarding the configurations will be omitted.

This modification will be explained using FIGS. 13A and 13B. FIG. 13A is another diagram showing control signals. FIG. 13B is yet another diagram showing control signals. Moreover, the lighting control system of this modification may include the above-mentioned lighting control device.

The control signal has a low output region including the minimum value of the control signal, and a high output region which is a region where the output of the control signal is higher than the low output region and is different from the low output region and includes the maximum value of the control signal. are doing. Further, the control signal is a dynamic signal that repeats a low output region and a high output region. In this case, a value obtained by multiplying the first minimum value in the low output region by 1.03 is set as P1'. Further, P2' is a value obtained by multiplying the maximum value in the high output region immediately after the first minimum value by 0.97. Further, a value obtained by multiplying the local maximum value by 0.97, and immediately after the value P2' over time, is set as P3'. Further, P4' is a value obtained by multiplying the second minimum value in the low output region immediately after the maximum value by 1.03. Further, the value P1' and the value P2' exist between the first minimum value and the maximum value. Further, the value P3' and the value P4' exist between the maximum value and the second minimum value in the low output region immediately after the maximum value over time. Further, the transition time from value P1' to value P2' is assumed to be ta'. Further, the transition time from value P3' to value P4' is assumed to be tb'. In these cases, when changing the output pattern of the illumination device 10 for realizing a light scene, the control unit 20 controls the output pattern so that at least one of ta' and tb' becomes shorter than the reference value, or The output of light emitted by each of the first lighting device 10a and the second lighting device 10b is controlled so that the length of the light becomes longer.

That is, when changing the output pattern of the lighting device 10, the control unit 20 controls the first lighting device 10a and the first lighting device 10a so that ta' becomes shorter than the first reference value or longer than the first reference value. The output of light emitted by each of the two lighting devices 10b is controlled. Further, when changing the output pattern of the lighting device 10, the control unit 20 controls the first lighting device 10a and the first lighting device 10a so that tb′ becomes shorter than the second reference value or longer than the second reference value. The output of light emitted by each of the two lighting devices 10b is controlled.

Specifically, the output pattern of the lighting device 10 may change in the following cases. (1) When ta' becomes shorter and tb' remains unchanged; (2) when ta' and tb' become shorter; (3) when ta' becomes shorter and tb' becomes longer; (4) when ta' becomes longer and tb' does not change, (5) ta' becomes longer and tb' becomes shorter, (6) ta' and tb' become longer, (7) ta' does not change, If tb' becomes shorter, (8) ta' may not change and tb' may become longer. Note that the first reference value and the second reference value are examples of reference values, and may be different values.

In this modified example, the light output of each of the first lighting device 10a and the second lighting device 10b changes based on a dynamic control signal so as to repeat a low output region and a high output region. It emits dynamic light that periodically increases and decreases. Therefore, the irradiated surface is irradiated with light whose brightness is periodically increased and decreased.

For example, at least one of the first lighting device 10a and the second lighting device 10b emits light that suddenly becomes brighter during a fade-in, and emits light whose brightness gradually becomes darker during a fade-out. Therefore, the light irradiated onto the irradiated surface changes continuously. As a result, people become conscious of moving in response to these changes.

Furthermore, at least one of the first lighting device 10a and the second lighting device 10b emits light that gradually becomes brighter during fade-in, and emits light whose brightness suddenly becomes darker during fade-out. Therefore, the light irradiated onto the irradiated surface does not change drastically, and it is possible to guide people without spoiling the scenery.

Therefore, according to this lighting control device 2, the ability to guide people can be improved by the light. As a result, this lighting control device 2 can realize affordance lighting.

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

For example, in the lighting control device, lighting control system, lighting device, etc. in Modifications 1 to 3 of the present embodiment, two or more output patterns may be combined and executed. That is, the control unit 20 may cause the plurality of lighting devices 10 to emit each light by combining output patterns of at least two of luminous intensity, illuminance, color temperature, and chromaticity.

Further, the control unit included in the lighting control device, lighting control system, lighting device, etc. in this embodiment is typically realized as an LSI, which is an integrated circuit. These may be integrated into one chip individually, or may be integrated into one chip including some or all of them.

Further, circuit integration is not limited to LSI, and may be realized using a dedicated circuit or a general-purpose processor. An FPGA (Field Programmable Gate Array) that can be programmed after the LSI is manufactured, or a reconfigurable processor that can reconfigure the connections and settings of circuit cells inside the LSI may be used.

Note that in the above 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 a processor reading and executing a software program recorded on a storage medium such as a hard disk or a semiconductor memory.

Moreover, all the numbers used above are exemplified to specifically explain the present disclosure, and the embodiments of the present disclosure are not limited to the illustrated numbers.

Furthermore, the division of functional blocks in the block diagram is just an example; multiple functional blocks can be realized as one functional block, one functional block can be divided into multiple functional blocks, or some functions can be moved to other functional blocks. You can. Further, functions of a plurality of functional blocks having similar functions may be processed in parallel or in a time-sharing manner by a single piece of hardware or software.

Further, the order in which the steps in the flowchart are executed is provided as an example to specifically explain the present disclosure, and may be in an order other than the above. Further, some of the above steps may be executed simultaneously (in parallel) with other steps.

Below, features of the lighting control device, lighting control system, and lighting device described based on the above embodiments will be shown.

<Technology 1>
a control unit that outputs a control signal to control each of the first light source unit and the second light source unit;
a sensor that senses the surroundings of the first light source section and the second light source section;
and an analysis unit that analyzes information acquired by the sensor,
The control signal is a dynamic signal that repeatedly increases and decreases the output of light emitted by each of the first light source section and the second light source section,
The control unit outputs the control signal for controlling to change the scene of light emitted by each of the first light source unit and the second light source unit, based on the result of the analysis of the information by the analysis unit. Lighting control equipment.

<Technology 2>
The sensor is an imaging unit that images the surroundings of the first light source unit and the second light source unit,
The information is an image;
The analysis unit is an image processing unit that processes the image captured by the imaging unit,
When the image processing unit detects that a person is present within a predetermined distance from at least one of the first light source unit and the second light source unit by analyzing the image,
The control unit outputs the control signal for controlling to change the scene of light emitted by each of the first light source unit and the second light source unit, based on a result of the image processing unit analyzing the image. The lighting control device according to technology 1.

<Technology 3>
The sensor is an imaging unit that images the surroundings of the first light source unit and the second light source unit,
The information is an image;
The analysis unit is an image processing unit that processes the image captured by the imaging unit,
If the image processing unit analyzes the image but does not detect the presence of a person within a predetermined distance from at least one of the first light source unit and the second light source unit for a certain period of time or more,
The control unit sends the control signal to control to change the scene of light emitted by each of the first light source unit and the second light source unit, based on the result that the image processing unit did not detect the detection. The lighting control device according to technology 1 to output.

<Technology 4>
The control unit controls the light scene emitted by each of the first light source unit and the second light source unit to become the light scene immediately before the change based on the detected result by the image processing unit. The lighting control device according to technique 3, wherein the control signal outputs the control signal.

<Technology 5>
When the image processing unit detects that there is a person in a specific state by analyzing the image,
The control unit controls the image processing unit to change the scene of light emitted by each of the first light source unit and the second light source unit based on the detected result of the image processing unit analyzing the image. The lighting control device according to any one of techniques 2 to 4, which outputs a control signal.

<Technology 6>
Light emitted from at least one of the first light source section and the second light source section, or from at least one of the first light source section and the second light source section when the image processing section analyzes the image. If it is detected that a person is not looking in the direction of the emission,
The control unit controls the image processing unit to change the scene of light emitted by each of the first light source unit and the second light source unit based on the detected result of the image processing unit analyzing the image. The lighting control device according to any one of techniques 2 to 5, which outputs a control signal.

<Technology 7>
The image processing unit includes:
detecting a crowd and attributes of the crowd by analyzing the image;
The control unit controls the image processing unit to change the scene of light emitted by each of the first light source unit and the second light source unit based on the detected result of the image processing unit analyzing the image. The lighting control device according to any one of techniques 2 to 6, which outputs a control signal.

<Technology 8>
The lighting control device according to technique 7, wherein the image processing unit extracts a leader from the detected crowd.

<Technology 9>
The change in the output of light emitted by each of the first light source section and the second light source section is based on a fade-in time in which the output of light emitted by each of the first light source section and the second light source section is increased. change the color of light emitted by each of the first light source section and the second light source section; and set the phase of each of the control signals output to the first light source section and the second light source section to be shorter than the time. The lighting control device according to any one of Techniques 2 to 8, which includes at least one of the four changes of making the device different.

<Technology 10>
The control unit, when changing the output pattern of the first light source unit and the second light source unit for realizing a light scene,
A maximum value P, a minimum value B, and an average value of the maximum value P and the minimum value B ((P+B) of the output value of light output from at least one light source part of the first light source part and the second light source part /2), or the average value of the output values from the minimum value B to the maximum value P (integral value of the output value/time from the minimum value B to the maximum value P) becomes larger than the reference value, Alternatively, the lighting control device according to any one of Techniques 1 to 8, wherein the output of light emitted by the at least one light source section is controlled so as to be smaller than the reference value.

<Technology 11>
The control unit is configured to change the chromaticity of the light output from the at least one light source unit when changing the output pattern of the first light source unit and the second light source unit for realizing a light scene. The lighting control device according to technique 10, wherein the at least one light source section is controlled to.

<Technology 12>
The lighting control device according to technology 10 or 11, in which the lighting control device executes a combination of two or more output patterns.

<Technology 13>
Equipped with the lighting control device described in technology 1,
The maximum value of the output value of light output from the first light source section is P1,
Immediately after the maximum value P1, the maximum value of the output value of light output from the second light source section is P2,
In the output value of light output from the first light source section, the maximum value immediately after the maximum value P1 is P3,
Let t1 be the time difference between the time of the maximum value P1 and the time of the maximum value P2,
If the time difference between the time of the maximum value P2 and the time of the maximum value P3 is t2,
When the control unit changes the output pattern of the first light source unit and the second light source unit for realizing a light scene, each of the first light source unit and the second light source unit When they are arranged in this order along the other side, when t2>t1, the control section controls whether t1 is equal to t1 when changing the output pattern of the light source section for realizing a light scene. A lighting control system that controls the output of light emitted by each of the first light source section and the second light source section so that the output is shorter than a reference value or longer than the reference value.

<Technology 14>
Equipped with the lighting control device described in technology 1,
The control signal is
a low output area including a minimum value of the control signal; and a high output area that is different from the low output area and has a higher output of the control signal than the low output area and includes a maximum value of the control signal. have,
a dynamic signal that repeats the low output region and the high output region;
The value obtained by multiplying the first minimum value in the low output region by 1.03 is set as P1',
P2' is a value obtained by multiplying the maximum value in the high output region immediately after the first minimum value by 0.97,
A value obtained by multiplying the local maximum value by 0.97 and immediately after the value P2' over time is set as P3',
P4' is a value obtained by multiplying the second minimum value in the low output region immediately after the maximum value by 1.03,
The value P1' and the value P2' exist between the first minimum value and the maximum value,
The value P3' and the value P4' exist between the local maximum value and the second minimum value in the low output region immediately after the local maximum value over time,
Let ta' be the transition time from the value P1' to the value P2',
If the transition time from the value P3' to the value P4' is tb',
When changing the output pattern of the light source unit for realizing a light scene, the control unit controls the control unit so that at least one of ta' and tb' becomes shorter than a reference value or longer than the reference value. An illumination control system that controls the output of light emitted by each of the first light source section and the second light source section.

<Technology 15>
The lighting control system according to technology 13 or 14, in which the lighting control system executes a combination of two or more output patterns.

<Technology 16>
The lighting control device according to any one of Techniques 1 to 5;
An illumination device comprising a first light source section and a second light source section capable of emitting light to an illuminated surface.

In addition, forms obtained by making various modifications to the embodiments that those skilled in the art can think of, and forms realized by arbitrarily combining the constituent elements and functions of the embodiments without departing from the spirit of the present disclosure. are also included in this disclosure.

2 Lighting control device 10 Lighting device (first light source section, second light source section, and third light source section)
10a First lighting device (first light source section)
10b Second lighting device (second light source section)
10c Third lighting device (third light source section)
11 Light source (first light source section, second light source section, and third light source section)
20 Control unit 21 Image processing unit (analysis unit)
22 Imaging unit (sensor)

Claims (16)

a control unit that outputs a control signal to control each of the first light source unit and the second light source unit;
a sensor that senses the surroundings of the first light source section and the second light source section;
and an analysis unit that analyzes information acquired by the sensor,
The control signal is a dynamic signal that repeatedly increases and decreases the output of light emitted by each of the first light source section and the second light source section,
The control unit outputs the control signal for controlling to change the scene of light emitted by each of the first light source unit and the second light source unit, based on the result of the analysis of the information by the analysis unit. Lighting control equipment. The sensor is an imaging unit that images the surroundings of the first light source unit and the second light source unit,
The information is an image;
The analysis unit is an image processing unit that processes the image captured by the imaging unit,
When the image processing unit detects that a person is present within a predetermined distance from at least one of the first light source unit and the second light source unit by analyzing the image,
The control unit outputs the control signal for controlling to change the scene of light emitted by each of the first light source unit and the second light source unit, based on a result of the image processing unit analyzing the image. The lighting control device according to claim 1. The sensor is an imaging unit that images the surroundings of the first light source unit and the second light source unit,
The information is an image;
The analysis unit is an image processing unit that processes the image captured by the imaging unit,
If the image processing unit analyzes the image but does not detect the presence of a person within a predetermined distance from at least one of the first light source unit and the second light source unit for a certain period of time or more,
The control unit sends the control signal to control to change the scene of light emitted by each of the first light source unit and the second light source unit, based on the result that the image processing unit did not detect the detection. The lighting control device according to claim 1, wherein the lighting control device outputs. The control unit controls the light scene emitted by each of the first light source unit and the second light source unit to become the light scene immediately before the change based on the detected result by the image processing unit. The lighting control device according to claim 3, wherein the lighting control device outputs the control signal. When the image processing unit detects that there is a person in a specific state by analyzing the image,
The control unit controls the image processing unit to change the scene of light emitted by each of the first light source unit and the second light source unit based on the detected result of the image processing unit analyzing the image. The lighting control device according to any one of claims 2 to 4, which outputs a control signal. Light emitted from at least one of the first light source section and the second light source section, or from at least one of the first light source section and the second light source section when the image processing section analyzes the image. If it is detected that a person is not looking in the direction of the emission,
The control unit controls the image processing unit to change the scene of light emitted by each of the first light source unit and the second light source unit based on the detected result of the image processing unit analyzing the image. The lighting control device according to any one of claims 2 to 4, which outputs a control signal. The image processing unit detects a crowd and attributes of the crowd by analyzing the image,
The control unit controls the image processing unit to change the scene of light emitted by each of the first light source unit and the second light source unit based on the detected result of the image processing unit analyzing the image. The lighting control device according to any one of claims 2 to 4, which outputs a control signal. The lighting control device according to claim 7, wherein the image processing unit extracts a leader from the detected crowd. To change the scene of the light emitted by each of the first light source section and the second light source section, increase the output of the light emitted by each of the first light source section and the second light source section, based on a fade-in time. change the color of light emitted by each of the first light source section and the second light source section; and set the phase of each of the control signals output to the first light source section and the second light source section to be shorter than the time. The lighting control device according to any one of claims 2 to 4, comprising at least one of the four changes: making the light different. The control unit, when changing the output pattern of the first light source unit and the second light source unit for realizing a light scene,
A maximum value P, a minimum value B, and an average value of the maximum value P and the minimum value B ((P+B) of the output value of light output from at least one light source part of the first light source part and the second light source part /2), or the average value of the output values from the minimum value B to the maximum value P (integral value of the output value/time from the minimum value B to the maximum value P) becomes larger than the reference value, The lighting control device according to claim 1, wherein the output of the light emitted by the at least one light source section is controlled so that the output of the light is smaller than the reference value. The control unit is configured to change the chromaticity of the light output from the at least one light source unit when changing the output pattern of the first light source unit and the second light source unit for realizing a light scene. The lighting control device according to claim 10, wherein the at least one light source section is controlled to. The lighting control device according to claim 10 or 11, wherein the lighting control device executes a combination of two or more output patterns. comprising the lighting control device according to claim 1;
The maximum value of the output value of light output from the first light source section is P1,
Immediately after the maximum value P1, the maximum value of the output value of light output from the second light source section is P2,
In the output value of light output from the first light source section, the maximum value immediately after the maximum value P1 is P3,
Let t1 be the time difference between the time of the maximum value P1 and the time of the maximum value P2,
If the time difference between the time of the maximum value P2 and the time of the maximum value P3 is t2,
When the control unit changes the output pattern of the first light source unit and the second light source unit for realizing a light scene, each of the first light source unit and the second light source unit When they are arranged in this order along the other side, when t2>t1, the control section controls whether t1 is equal to t1 when changing the output pattern of the light source section for realizing a light scene. A lighting control system that controls the output of light emitted by each of the first light source section and the second light source section so that the output is shorter than a reference value or longer than the reference value. comprising the lighting control device according to claim 1;
The control signal is
a low output area including a minimum value of the control signal; and a high output area that is different from the low output area and has a higher output of the control signal than the low output area and includes a maximum value of the control signal. have,
a dynamic signal that repeats the low output region and the high output region;
The value obtained by multiplying the first minimum value in the low output region by 1.03 is set as P1',
P2' is a value obtained by multiplying the maximum value in the high output region immediately after the first minimum value by 0.97,
A value obtained by multiplying the local maximum value by 0.97 and immediately after the value P2' over time is set as P3',
P4' is a value obtained by multiplying the second minimum value in the low output region immediately after the maximum value by 1.03,
The value P1' and the value P2' exist between the first minimum value and the maximum value,
The value P3' and the value P4' exist between the local maximum value and the second minimum value in the low output region immediately after the local maximum value over time,
Let ta' be the transition time from the value P1' to the value P2',
If the transition time from the value P3' to the value P4' is tb',
When changing the output pattern of the light source unit for realizing a light scene, the control unit controls the control unit so that at least one of ta' and tb' becomes shorter than a reference value or longer than the reference value. An illumination control system that controls the output of light emitted by each of the first light source section and the second light source section. The lighting control system according to claim 13 or 14, wherein the lighting control system executes a combination of two or more output patterns. The lighting control device according to any one of claims 1 to 3, 10, and 11;
An illumination device comprising a first light source section and a second light source section capable of emitting light to an illuminated surface.

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