JP2019102145A - Control device, illumination device, and control method - Google Patents

Abstract

To provide an illumination control device which enables a user to easily be conscious of an air retention period, and an illumination device and an illumination control method.SOLUTION: A control device comprises a control part which generates a control signal for temporally changing output of light emitted from a light source. The output of the light has: a first output value at a starting point of an increase period; a second output value greater than the first output value at an ending point of the increase period and a starting point of a first transition period; a third output value greater than the first output value at an ending point of the first transition period and a starting point of a maintenance period; a fourth value greater than the first output value at an ending point of the maintenance period and a starting point of a second transition period; a fifth output value greater than the first output value at an ending point of the second transition period; a sixth value smaller than the fifth value at the ending period of the second transition period; a first extremal value in the first transition period; and a second extremal value in the second transition period.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a control device and control method used for lighting, and a lighting device.

  It is recommended to take deep breathing to maintain and improve mental and physical health. It is known to use a machine to induce respiration in order to take deep breaths.

Unexamined-Japanese-Patent No. 2006-231000 Patent No. 6164202 specification Patent No. 5081125

  Although the method for guiding breathing using audio and video can transmit much information to the user, it has the disadvantage of concentrating too much on the video. A system using audio and video is larger in size than a system using flickering of illumination, and it is difficult to easily perform installation and the like. In the case of using voice, it may be a problem that sound leaks out of the space used.

  Deep breathing consists of the repetition of three periods, inspiration, retention and expiration. By flickering the illumination light, it is also possible for the user to adjust the rhythm of repeated deep breathing to the rhythm of flickering. However, the inventors of the present invention have found that there is a problem that the user hardly notices the air-holding period only by the flickering of the illumination light.

  The control device according to an embodiment includes a control unit that generates a control signal that temporally changes an output of light emitted from the light source, and a driving unit that drives the light source according to the control signal, the control The output unit includes an increase period, a first transition period after the increase period, a sustain period after the first transition period, a second transition period after the sustain period, and the second transition period. A change is repeatedly made to increase and decrease the reduction period after the transition period as one period, and the output is the first output value at the start point of the increase period, the end point of the increase period, and the start point of the first transition period A second output value larger than the first output value, an end point of the first transition period, and a third output value larger than the first output value at the start point of the sustain period; an end point of the sustain period; 2 at the start of the transition period A fourth output value greater than the force value, a fifth output value greater than the first output value at the end of the second transition period, and a sixth output value smaller than the fifth output value at the end point of the second transition period It has an output value, a first extreme value in the first transition period, and a second extreme value in the second transition period.

  The control method of temporally changing the output of the light emitted from the light source according to an embodiment includes, in the output, an increase period, a first transition period after the increase period, and a period after the first transition period. Change is repeatedly made to increase and decrease the sustain period, the second transition period after the sustain period, and the decrease period after the second transition period as one period, and the output is at the start of the increase period A first output value, an end point of the increase period, and a second output value larger than the first output value at the start point of the first transition period, an end point of the first transition period, and the start point of the sustain period A third output value larger than one output value, an end point of the sustain period, and a fourth output value larger than the first output value at the start point of the second transition period, and the first output value at the end point of the second transition period Fifth output greater than output value When a sixth output value smaller than the fifth output value to the end point of the second transition period, the first extreme value in said first transition period, a second extreme value in the second transition period.

  Provided are a lighting control device, a lighting device, and a lighting control method that make it easy for a user to be aware of a gas holding period.

FIG. 1 is a block diagram of a lighting device in an embodiment. It is a graph which shows an example of change of the output of the light source in one embodiment. It is a figure which shows the blocker Salzer effect. It is a figure which shows the discrimination threshold of a stimulation intensity level and brightness. It is a graph which shows another example of change of the output of a light source. It is a block diagram which shows the structure of the control part in one Embodiment. FIG. 7 is a flow diagram illustrating an algorithm of processing for applying a change to the output of the light source.

Overview FIG. 1 is a block diagram of a lighting device 100. The lighting device 100 includes an input device 110, a controller 120, and a light source 130. Control device 120 includes a control unit 122 and a drive unit 124.

  The lighting device 100 implements direct lighting or indirect lighting, and a combination thereof. Direct lighting is, for example, a downlight. Indirect lighting is, for example, coffer lighting, cornice lighting, and cove lighting, and combinations thereof. The lighting device 100 makes it easy for the user to adjust the rhythm of repeated deep breathing to the temporal change of the light output of the light source 130. The lighting device 100 is typically located in the vicinity where the indoor user is trying to relax.

  The input device 110 transmits to the control unit 122 the operating parameters of the lighting device 100 selected by the user. Such operating parameters represent, for example, the on / off of the lighting device 100 and the period of the temporal change of the light output of the lighting device 100. The input device 110 is, for example, a mechanical or electronic switch. The input device 110 may be provided on a housing of the lighting device 100, or may be provided in a housing separate from the lighting device 100. In the former case, the input device 110 is coupled to the control unit 122 by a wire provided in the housing. In the latter case, the input device 110 is wirelessly coupled to the control unit 122. The wireless coupling is realized, for example, by the transmission of operating parameters by means of infrared light or electromagnetic waves.

  The control unit 122 generates a control signal that temporally changes the output of the light emitted from the light source 130, and sends the control signal to the drive unit 124. The control unit 122 is realized by, for example, a processor and a memory, and realizes a control method described later.

  The drive unit 124 receives a control signal from the control unit 122 and drives the light source 130. The drive unit 124 temporally changes the output of the light emitted from the light source 130 based on the control signal. The drive unit 124 changes the output of the light source 130 by pulse width modulation (PWM), for example.

  The light source 130 is, for example, a light emitting diode (LED). The light source 130 may include a plurality of LEDs. The light source 130 may be configured by a single color LED or may be configured by an LED emitting a plurality of colors.

  The lighting device 100 may include the input device 110, the controller 120, and the light source 130, but may not include the input device 110. In this case, the input device 110 is realized as a separate element. Furthermore, only the control device 120 may be provided in the housing, and the light source 130 may be provided externally.

Output Change of Light Source FIG. 2 is a graph showing an example of a change 200 of the output (brightness) of the light source 130. As shown in FIG. The control unit 122 controls the output of the light source 130 to include an increase period A, a first transition period T1 after the increase period A, a sustain period S after the first transition period T1, and a second period after the sustain period S. A change is made to repeat the increase and decrease in which the transition period T2 and the decrease period D after the second transition period T2 are one period.

  The output change 200 has a first output value L1 at the start of the increase period A. The output change 200 has a second output value L2 larger than the first output value L1 at the end point of the increase period A and the start point of the first transition period. The output change 200 has a third output value L3 larger than the first output value L1 at the end point of the first transition period and the start point of the sustain period. The output change 200 has a fourth output value L4 larger than the first output value L1 at the end point of the sustain period S and at the start point of the second transition period T2. The output change 200 has a fifth output value L5 that is larger than the first output value L1 at the end point of the second transition period T2. The output change 200 has a sixth output value L6 smaller than the fifth output value L5 at the end point of the second transition period T2. The output change 200 has the first extreme value E1 in the first transition period T1, and the second extreme value E2 in the second transition period T2.

  In the following description, the air holding period generally corresponds to the maintenance period S.

  With the output change 200 having the extreme values E1 and E2, the lighting device 100 has an effect that the user can easily be aware of the air-holding period. It is easy to be aware of the inspiratory period and the expiratory period if the air holding period is easy to be aware. As a result, it is possible to comfortably present the user with the rhythm of deep breathing consisting of inhalation, gas retention, and exhalation, and it is possible to enhance the effect of the user's mindfulness meditation.

  FIG. 3 is a diagram showing the blocker Salzer effect. The blocker Saltzer effect is an effect that when a pulse light such as flash light is seen, it feels particularly bright at the moment when it is seen, and it can be felt as a certain brightness as the pulse time becomes long. FIG. 3 can be said to be a graph evaluating the time during which pulse lights of various illuminances are felt to have the same brightness.

  Assuming a scene that uses only two lighting fixtures flickering with fixtures in the shape of a floor light (ware-approximately 2300 mm in linear distance of user's face), the maximum value of the facial illumination of the flickering waveform is very dark at 5 lx It is considered to be close to the unlit state. In this embodiment, pulse light is not assumed, but in the case of a rapid rise and fall change, a sense of discomfort may be generated, and the concentration of the user may be disturbed. Assuming that a pulse light of about 5 lx is assumed, if the presentation time is one second or more from the graph, the perceptual discomfort of the flicker waveform change does not occur.

  In one embodiment, the first transition period T1 is 1 second or more and 2 seconds or less. Thus, the start of the gas retention period is more clearly presented to the user.

  In one embodiment, the second transition period is greater than or equal to 1 second and less than or equal to 2 seconds. Thereby, the end of the gas retention period is more clearly presented to the user.

  In the first transition period T1, the periods of the second output value L2 to the first extreme value E1 and the periods of the first extreme value E1 to the third output value L3 may not be equal. Similarly, in the second transition period T2, the periods of the fourth output value L4 to the second extreme value E2 and the periods of the second extreme value E2 to the fifth output value L5 may not be equal.

  FIG. 4 is a diagram showing the stimulation intensity level and the discrimination threshold of brightness. The horizontal axis in FIG. 4 represents the stimulus intensity (I) of the reference light, and the vertical axis in FIG. 4 represents the Weber ratio (Δ / I) when the stimulus intensity difference between the reference light and the test light is ΔI. When the viewing angle is 2 ° or more, discontinuous changes appear in the curve. This is because when the viewing angle is 2 ° or more, the curve extends to the outside of the retinal fovea, so that the curve is divided into a rod visual part and a cone visual part in order that the rod also participates in vision.

  In the present embodiment, it is assumed that the vision is 2 ° or more, since it is not appropriate that the vision illuminates only the narrow range of less than 2 ° because the vision must be concentrated in the narrow range. In addition, in order to mark the timing of respiration, it is considered that a minimum brightness is required, and not a dark vision environment in which only a rod works but a dim vision and photopic vision environment is assumed. Referring to FIG. 4, the Weber ratio of the discontinuous change point (= the change from the scotopic vision to the thin vision) in the 2 ° field of view is about 1.70. Therefore, in the environment assumed in the present embodiment, a difference can be recognized if there is a change of 1.70 times in any brightness and visual field.

  Conversely, in an environment where the field of view is wide and bright, the difference can be recognized even with a difference of about 1.01 times. In the present embodiment, it is desirable to teach the user the air-holding period naturally with little discomfort. Therefore, it is desirable that the change between the amplitude peaks is not too large.

  In one embodiment, the first extreme value E1 is a maximum value larger than the second output value L2 and the third output value L3. Thereby, the start of the air-holding period is presented to the user by the maximum value of the brightness of the light source 130. From the above relationship shown in FIG. 4, in one embodiment, the first extreme value E1 which is the maximum value is not less than 1.01 times and not more than 1.70 times the third output value L3. Thus, the start of the gas retention period is more clearly presented to the user.

  In one embodiment, the second extreme value E2 is a maximum value larger than the fourth output value L4 and the fifth output value L5. Thus, the end of the air-holding period is presented to the user by the maximum value of the brightness of the light source 130. From the above relationship shown in FIG. 4, in one embodiment, the second extreme value E2 which is the maximum value is 1.01 times to 1.70 times the fourth output value L4. Thereby, the end of the gas retention period is more clearly presented to the user.

  In FIG. 2, the amplitude (that is, the difference between the outputs) of the second output value L2 and the first extreme value E1, the amplitude of the first extreme value E1 and the third output value L3, the fourth output value L4 and the second extreme Although the amplitude with the value E2 and the amplitudes of the second extreme value E2 and the fifth output value L5 are the same, they are not limited to this and may be different from each other. For example, when the third output value L3 is larger than the second output value L2, the amplitudes of the first extreme value E1 and the third output value L3 are greater than the amplitudes of the second output value L2 and the first extreme value E1. It may be small.

  FIG. 5 is a graph showing another example of the change 500 in the output (brightness) of the light source 130. The difference from the change 200 in FIG. 2 is that the first extreme value E1 and the second extreme value E2 are not local maximum values but local minimum values. Otherwise, what has been described with reference to FIG.

  For the reason described with reference to FIG. 3, in one embodiment, the first transition period T1 is 1 second or more and 2 seconds or less. Thus, the start of the gas retention period is more clearly presented to the user. Similarly, in one embodiment, the second transition period is greater than or equal to 1 second and less than or equal to 2 seconds. Thereby, the end of the gas retention period is more clearly presented to the user.

  In one embodiment, the second extreme value E2, which is the minimum value, is not less than 0.59 times and not more than 0.99 times the second output value. Thereby, the end of the gas retention period is more clearly presented to the user.

  In one embodiment, the chromaticity of the light at the first extreme value E1 is different from the chromaticity of the light in the increasing period A. Thus, the start of the gas retention period is more clearly presented to the user. For example, the chromaticity of light in the increase period A is a warm color system, and the chromaticity of light in the first extreme value E1 is a cold color system.

  In one embodiment, the chromaticity of light at the second extreme value E2 is different from the chromaticity of light in the sustain period S. Thereby, the end of the gas retention period is more clearly presented to the user. For example, the chromaticity of light in the increase period A is a warm color system, and the chromaticity of light in the first extreme value E1 is a cold color system.

  In one embodiment, the sixth output value L6 is greater than zero. This may give the user a lasting tone after exhalation.

  In one embodiment, change 200 and change 500 change smoothly. As a result, it is possible to reduce the discomfort given to the user at the point where the output of the light source 130 decreases from increase to decrease (time L2 in FIG. 5), for example.

  In one embodiment, as shown in change 200, the first extreme E1 and the second extreme E2 are both maxima, and in one embodiment, as shown in the change 500, the first extreme Both E1 and the second extreme value E2 are local minimum values. In another embodiment, one of the first extreme value E1 and the second extreme value E2 may be a maximum value, and the other may be a minimum value. For example, the first extreme value E1 may be a maximum value, and the second extreme value E2 may be a minimum value. At this time, if the above-mentioned numerical conditions for the maximum value and the minimum value are satisfied, the corresponding effects can be obtained.

Hardware FIG. 6 is a block diagram showing the structure of the control unit 122. As shown in FIG. The control unit 122 includes a processor 610, a memory 620, and an input / output unit 630. Processor 610 performs the process of providing change 200 and change 500 to the output of light source 130. Memory 620 stores instructions and parameters used for processing performed by processor 610. The input / output unit 630 generates control based on the output of the processor 610 and outputs the control to the drive unit 124. The input / output unit 630 may be incorporated in the processor 610.

  The control unit 122 and the drive unit 124 may be realized as one element (for example, a semiconductor chip). Alternatively, the control unit 122 and the drive unit 124 may be provided in one case.

Software FIG. 7 is a flow diagram illustrating an algorithm 700 of a process for providing changes 200 and 500 to the output of light source 130. At 710, the processor 610 receives data from the input / output unit 630. This data is, for example, data indicating the operation mode of the lighting device 100 input to the input device 110 by the user. At 720, the processor 610 receives data regarding the change 200 or 500 from the memory 620. At 730, the processor 610 outputs a control signal to the driver 124 based on the received data. The algorithm 700 may be performed iteratively, with control returning from 730 to 710, as desired.

  The subject matter of an apparatus, system or method in the present disclosure includes a computer (e.g., control unit 122). The computer executes the program (eg, algorithm 700) to implement the functions of the apparatus, system, or method in the present disclosure. The computer includes, as a main hardware configuration, a processor that operates according to a program. The processor may be of any type as long as the function can be realized by executing a program. The processor is configured of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large scale integration (LSI). The plurality of electronic circuits may be integrated on one chip or may be provided on a plurality of chips. The plurality of chips may be integrated into one device or may be provided to a plurality of devices. The program is recorded in a non-transitory recording medium such as a computer readable ROM, an optical disc, a hard disk drive and the like. The program may be stored in advance in a recording medium, or may be supplied to the recording medium via a wide area communication network including the Internet and the like.

  What has been described above includes various examples of the present invention. It is of course not possible to describe every conceivable combination of elements or procedures for the purpose of describing the invention, but one of ordinary skill in the art will appreciate that many additional combinations and permutations of the invention are possible. right. Accordingly, the present invention is intended to embrace all such alterations, modifications and variations that fall within the spirit and scope of the appended claims.

DESCRIPTION OF SYMBOLS 100 illumination apparatus 120 control apparatus 122 control part 124 drive part 130 light source

Claims (17)

A control device includes: a control unit that generates a control signal that temporally changes an output of light emitted from a light source; and a driving unit that drives the light source according to the control signal,
The control unit further includes an increase period, a first transition period after the increase period, a sustain period after the first transition period, a second transition period after the sustain period, and the output period. Give a change that repeats the increase and decrease with one period as the decrease period after the second transition period,
The output is
A first output value at a start point of the increase period;
A second output value larger than the first output value at an end point of the increase period and a start point of the first transition period;
A third output value larger than the first output value at an end point of the first transition period and a start point of the sustain period;
A fourth output value greater than the first output value at an end point of the sustain period and a start point of the second transition period;
A fifth output value larger than the first output value at an end point of the second transition period;
The control device having a sixth output value smaller than the fifth output value at an end point of the second transition period, a first extreme value in the first transition period, and a second extreme value in the second transition period. The control device according to claim 1, wherein the first extreme value is a maximum value larger than the second output value and the third output value. The control device according to claim 2, wherein the maximum value is 1.01 times or more and 1.70 times or less of the third output value. The control device according to claim 1, wherein the first extreme value is a local minimum value smaller than the second output value and the third output value. The control device according to claim 4, wherein the minimum value is 0.59 times or more and 0.99 times or less of the second output value. The control device according to any one of claims 1 to 5, wherein the second extreme value is a maximum value larger than the fourth output value and the fifth output value. The control device according to claim 6, wherein the second extreme value is 1.01 times or more and 1.70 times or less of the fourth output value. The control device according to any one of claims 1 to 5, wherein the second extreme value is a local minimum value smaller than the fourth output value and the fifth output value. The control device according to claim 8, wherein the second extreme value is 0.59 times or more and 0.99 times or less of the fourth output value. The control device according to any one of claims 1 to 9, wherein the first transition period is one second or more and two seconds or less. The control device according to any one of claims 1 to 9, wherein the second transition period is one second or more and two seconds or less. The control device according to any one of claims 1 to 11, wherein the chromaticity of the light at the first extreme value is different from the chromaticity of the light in the increasing period. The control device according to any one of claims 1 to 11, wherein the chromaticity of the light at the second extreme value is different from the chromaticity of the light in the sustain period. The control device according to any one of claims 1 to 13, wherein the sixth output value is larger than zero. The control device according to any one of claims 1 to 14, wherein the output changes smoothly.   A lighting device comprising the control device according to claim 1 and a light source. A control method for temporally changing the output of light emitted from a light source, comprising:
In the control method, the output includes an increase period, a first transition period after the increase period, a sustain period after the first transition period, a second transition period after the sustain period, and Give a change that repeats the increase and decrease with one period as the decrease period after the second transition period,
The output is
A first output value at a start point of the increase period;
A second output value larger than the first output value at an end point of the increase period and a start point of the first transition period;
A third output value larger than the first output value at an end point of the first transition period and a start point of the sustain period;
A fourth output value greater than the first output value at an end point of the sustain period and a start point of the second transition period;
A fifth output value larger than the first output value at an end point of the second transition period;
A control method comprising: a sixth output value smaller than the fifth output value at an end point of the second transition period; a first extreme value in the first transition period; and a second extreme value in the second transition period.

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