JP2022114830A - Environmental control system, environmental control method, and program - Google Patents

Abstract

To provide an environmental control system capable of improving both workability and comfort of a user.SOLUTION: An environmental control system 100 includes an illumination control unit 11 and a sound control unit 12. The illumination control unit 11 controls illumination and a color temperature of an illumination load 6 placed in a work space 4. The sound control unit 12 controls sound equipment 7 placed in the work space 4. The illumination control unit 11 controls the illumination load 6 so that the color temperature of light emitted from the illumination load 6 is 2700K or more and 5000K or less, and the illumination in the work space 4 is 300lx or more. The sound control unit 12 is configured to control the sound equipment 7 to reproduce music classified as jazz or bossa nova in the work space 4.SELECTED DRAWING: Figure 1

Description

The present invention relates to an environment control system, an environment control method, and a program.

Patent Literature 1 discloses an acoustic lighting device. This acoustic illumination device includes an illumination section, an acoustic output section, a setting section, and a control section. The setting unit sets parameters of at least one of lighting of the lighting unit and sound output of the sound output unit according to the recognized user present in the surroundings. The control unit controls at least one of lighting of the lighting unit and sound output of the sound output unit according to the parameters set by the setting unit.

JP 2014-093204 A

The present invention provides an environment control system, an environment control method, and a program that facilitate improvement of both workability and comfort of the user.

An environment control system according to one aspect of the present invention includes a lighting control section and a sound control section. The lighting control unit controls the illuminance and color temperature of a lighting load provided in the work space. The audio control unit controls an audio device provided in the work space. The lighting control unit controls the lighting load so that the color temperature of the light emitted from the lighting load is 2700 K or more and 5000 K or less and the illuminance of the work space is 300 lx or more. The sound control unit controls the sound device to reproduce music classified as jazz or bossa nova in the work space.

An environment control method according to an aspect of the present invention includes a lighting control step and a sound control step. In the lighting control step, the illuminance and color temperature of the lighting load provided in the work space are controlled. In the audio control step, an audio device provided in the work space is controlled. In the lighting control step, the lighting load is controlled such that the color temperature of the light emitted from the lighting load is 2700 K or more and 5000 K or less and the illuminance of the work space is 300 lx or more. In the sound control step, the sound device is controlled to reproduce music classified as jazz or bossa nova in the work space.

A program according to an aspect of the present invention causes one or more processors to execute the environment control method.

ADVANTAGE OF THE INVENTION The environmental control system, the environmental control method, and the program of this invention have the advantage that it is easy to aim at improvement of both a user's workability and comfort.

FIG. 1 is a block diagram showing the functional configuration of the environment control system according to the embodiment. FIG. 2 is a schematic diagram showing an example of a work space in which the environment control system according to the embodiment is used. FIG. 3 is a schematic diagram showing an example of the display device of the environment control system according to the embodiment. FIG. 4 is a diagram showing the results of the first experiment. FIG. 5 is a diagram showing the results of the second experiment. FIG. 6 is a diagram showing the results of the third experiment. FIG. 7 is a flow chart showing an operation example of the environmental control system according to the embodiment.

Hereinafter, embodiments will be specifically described with reference to the drawings. It should be noted that the embodiments described below are all comprehensive or specific examples. Numerical values, shapes, materials, components, arrangement positions and connection forms of components, steps, order of steps, and the like shown in the following embodiments are examples and are not intended to limit the present invention. Further, among the constituent elements in the following embodiments, constituent elements not described in independent claims will be described as optional constituent elements.

Each figure is a schematic diagram and is not necessarily strictly illustrated. Moreover, in each figure, the same code|symbol is attached|subjected with respect to substantially the same structure, and the overlapping description may be abbreviate|omitted or simplified.

(Embodiment)
[work space]
First, a work space 4 in which the environment control system 100 according to the embodiment is used will be described. FIG. 1 is a block diagram showing the functional configuration of an environment control system 100 according to an embodiment. FIG. 2 is a schematic diagram showing an example of the work space 4 in which the environment control system 100 according to the embodiment is used.

The environment control system 100 according to the embodiment is used in a work space 4 such as an office where a user U1 works, and is a system for controlling the environment in such a work space 4 . In the embodiment, it is assumed that the environment control system 100 is used in an ABW (Activity Based Working) type office 3 where the work place can be freely selected according to the work one wants to do. Here, "ABW" refers to a working style in which the user U1 (employee or the like) selects a working place, desk, or the like according to the work content. In an ABW type office, user U1 may select a relatively quiet place when performing work that requires concentration, and may select a relaxing place such as a sofa when having a meeting. It is possible.

The environment control system 100 is not limited to the ABW type office, and may be used in a free address type office. , may be used in other spaces. For example, the environmental control system 100 may be used in educational facilities such as elementary schools, junior high schools, high schools, or universities, may be used in public facilities such as public halls or libraries, or may be used in stores or commercial facilities. may be

Further, the work space 4 in which the environment control system 100 is used is not limited to the space in which the user U1 can freely select the work place as described above, and is used in an office where the work place of the user U1 is fixed, for example. good too.

In the example shown in FIG. 2, the office 3 has a plurality of (here, six) work spaces 4 . Furniture 5 for one or more users U1 to work is installed in each work space 4 . In the example shown in FIG. 2, the work performed by the user U1 is work using the information terminal 8 owned by the user U1, such as a laptop personal computer. The information terminal 8 may be a desktop personal computer, a smart phone, a tablet terminal, or the like. Moreover, in the example shown in FIG. 2, the furniture 5 includes a desk 51 and one or more chairs 52 .

In the example shown in FIG. 2, the adjacent working spaces 4 are not partitioned, but may be partitioned, for example, by walls or fixtures. As an example, the office 3 may consist of a plurality of rooms partitioned by walls, fixtures, or the like. In this case, the work space 4 may be each of a plurality of rooms or a part of the plurality of rooms.

A lighting load 6 is installed in the work space 4 . In an embodiment, lighting load 6 is installed in the ceiling of workspace 4 . Of course, the lighting load 6 may be installed not only on the ceiling of the work space 4, but also on a wall, floor, or furniture such as a desk. In the example shown in FIG. 2, a plurality of (here, nine) lighting loads 6 are installed on the ceiling of the office 3 . Here, the office 3 is evenly divided into six work spaces 4, and each work space 4 has a plurality of (here, two) lighting loads 6 installed. Among the lighting loads 6 , there are also lighting loads shared by a plurality of work spaces 4 . As an example, the lighting load 6 located in the center of the ceiling of the office 3 shown in FIG.

A sound device 7 is installed in the work space 4 . In the embodiment, the acoustic device 7 is installed on the ceiling of the work space 4 . Of course, the acoustic device 7 may be installed not only on the ceiling of the working space 4, but also on a wall, floor, or furniture such as a desk. In the example shown in FIG. 2, a plurality of (here, eight) acoustic devices 7 are installed on the ceiling of the office 3, and a plurality of (here, two) acoustic devices 7 are installed in each work space 4. is set up. It should be noted that some of the acoustic devices 7 are used in a plurality of work spaces 4 as well. As an example, the two acoustic devices 7 positioned at the center back side of the office 3 shown in FIG.

The lighting load 6 provides an illumination environment to the work space 4 by illuminating the work space 4 with illumination light. The parameters of the lighting environment may include, for example, the illuminance of the lighting light, color temperature (light color), light distribution, or the like. In the embodiment, the lighting load 6 is a base light as ambient lighting that uniformly illuminates the target space, and includes a light source having solid-state light-emitting elements such as LEDs (Light Emitting Diodes). That is, the lighting load 6 has diffused light distribution characteristics. The light source of the lighting load 6 is configured to be capable of dimming, toning, or both under the control of the lighting control unit 11 .

Note that the lighting load 6 may be a spotlight as a task light. In other words, the lighting load 6 may have condensing light distribution characteristics. Moreover, the lighting load 6 is not limited to a spotlight, and may be, for example, a standlight, a downlight, or a universal downlight. Furthermore, the lighting load 6 may include both a lighting load having diffuse light distribution characteristics and a lighting load having condensing light distribution characteristics.

Further, the solid-state light-emitting device used for the lighting load 6 is not limited to the LED, and may be an organic EL (Electro-Luminescence) device or the like. Furthermore, the lighting load 6 is not limited to a light source having a solid state light emitting device, and may be a fluorescent lamp or the like.

By the way, in the embodiment, in two adjacent spaces, the lighting load 6 installed in one space may not strictly affect only the lighting environment of one space, and may affect the other space. is allowed to give In other words, in an arbitrary work space 4, the lighting environment provided by the lighting load 6 corresponding to the work space 4 should be the main lighting environment. Even if there is an influence from 6, it is sufficient if the illumination environment of the work space 4 is hardly affected. This is because the influence of the lighting load 6 corresponding to a space different from the working space 4 on the user U1 existing in the working space 4 at this time is considered to be limited.

The acoustic device 7 provides an acoustic environment to the target space by outputting sound to the target space. Parameters of the acoustic environment may include, by way of example, the content being played, or the volume. The audio device is, for example, an omnidirectional speaker, and reproduces content transmitted from the audio control unit 12 under the control of the audio control unit 12 . The acoustic device 7 may be a speaker having directivity such as a speaker using a parametric speaker, a speaker using ultrasonic waves, or a speaker having a horn-structured housing. When a speaker having directivity is used, it is possible to expect an effect that it is easy to reduce the ratio of part of the sound leaking to another space.

By the way, in the embodiment, in two adjacent spaces, the sound output from the acoustic device 7 installed in one space does not have to be output only to one space. It is allowed to leak into space. In other words, in an arbitrary work space 4, the sound output from the acoustic device 7 corresponding to the work space 4 should be the main sound, and a part of the sound from the space different from the work space 4 may be used. Even if it leaks, it should hardly affect the sound of the working space 4 .

[Environment control system]
The environment control system 100 includes a lighting controller 11, a sound controller 12, a storage 13, and a display device 2, as shown in FIG. In addition, in the embodiment, the environment control system 100 may include at least the lighting control section 11 and the sound control section 12, and may not include the storage section 13 and the display device 2. Also, the components of the environmental control system 100 excluding the display device 2 may be installed in the office 3 or may be installed in a remote location away from the office 3 .

The lighting control unit 11 can communicate with the lighting loads 6 installed in each work space 4 , and controls each lighting load 6 by transmitting a lighting control signal to each lighting load 6 . That is, the lighting control unit 11 controls the lighting load 6 for each work space 4 . In the embodiment, the lighting controller 11 controls both dimming and toning of each lighting load 6 . Communication between the lighting control unit 11 and each lighting load 6 may be wired communication or wireless communication, and the communication standard is not particularly limited.

In the embodiment, the lighting control unit 11 can also communicate with the display device 2, and by communicating with the display device 2, it is possible to receive a signal including the lighting control input received by the display device 2. . In this case, the lighting control unit 11 controls each lighting load 6 according to the received lighting control input. Communication between the lighting control unit 11 and the display device 2 may be wired communication or wireless communication, and the communication standard is not particularly limited.

The sound control unit 12 is capable of communicating with the sound devices 7 installed in each work space 4, and transmits a sound control signal (including content to be played back) to each sound device 7. to play the content. That is, the sound control unit 12 controls the sound device 7 for each work space 4 . Communication between the sound control unit 12 and each sound device 7 may be wired communication or wireless communication, and the communication standard is not particularly limited.

Also, the content may be stored in the sound control unit 12 , may be stored in each sound device 7 , or may be stored in the storage unit 13 . The content is stored in an electronic data medium such as WAV format or mp3 format, but is not limited to this, and may be stored in any known storage method such as a compact disc (CD).

In the embodiment, the sound control unit 12 can also communicate with the display device 2, and by communicating with the display device 2, can receive a signal including the sound control input received by the display device 2. . In this case, the audio controller 12 controls each audio device 7 according to the received audio control input. Communication between the sound control unit 12 and the display device 2 may be wired communication or wireless communication, and the communication standard is not particularly limited.

By controlling the lighting environment and the acoustic environment of each work space 4 in this way, it is possible to make the environment different for each work space 4, and a so-called zoning effect can be expected.

Here, the zoning effect means, for example, a sense of division of space in terms of perception, and may include an effect that the user U1 can easily recognize that a plurality of spaces are different from each other in terms of appearance. Also, the zoning effect may include an effect of facilitating changes in user U1's behavior or flow line as intended by zoning, with recognition by user U1. For example, it is assumed that an arbitrary space is zoned with the intention of making it a space where user U1 can easily perform work that requires concentration. In this case, it can be said that the zoning effect has been exhibited if the user U1 who has seen the space uses the space mainly for the purpose of performing work that requires concentration.

In addition, the zoning effect is an effect in which the user U1's subjective effect/feeling, or physiological/psychological/biological effect tends to correspond to the purpose of the zoning when the user U1 actually uses the zoned space. can include For example, it is assumed that an arbitrary space is zoned with the intention of becoming a space that facilitates work that requires concentration, and user U1 uses the space. In this case, if the user U1 feels that he/she could concentrate by using the space, or if an index/data suggesting that the user U1 was concentrating as a psychological/biological effect is obtained, zoning is performed. It can be said that it was effective.

By controlling the lighting load 6 and the acoustic device 7 installed in the work space 4 as described above, the work space 4 can be zoned without using fixtures or furniture. For this reason, it is easy to enhance the design of the work space 4, and so-called active zoning, in which the layout of the office 3 is instantaneously changed by controlling the lighting load 6 and the sound device 7, becomes possible. As an example, changing the control parameter for the color temperature (light color) of the light emitted by the lighting load 6 in the work space 4 is completed in several seconds, for example. In this case, as a result, it is possible to change the layout of the office 3 in a few seconds. Here, if the layout of the office 3 is to be changed by manually moving fixtures or furniture, it takes 60 minutes, several hours, one day, or even several days. From this point of view, the zoning by controlling the lighting load 6 described above can have a very remarkable effect.

Active zoning makes it possible to change the layout of office 3 in a short period of time, such as hourly, daily, or monthly, compared to conventional office layout changes by changing the arrangement of fixtures or furniture. is.

In the embodiment, in each work space 4, the lighting control unit 11 controls the lighting so that the color temperature of the light emitted from the lighting load 6 is 2700 K or more and 5000 K or less and the illuminance of the work space 4 is 300 lx or more. Control the load 6. The "color temperature" referred to here is the correlated color temperature. Also, the “illuminance” here is, for example, the maximum illuminance of the lighting load 6 . The maximum illuminance of the lighting load 6 is represented, for example, by illuminance measured at the center of the work area 41 in the work space 4 . The work area 41 is an area where the user U1 works. In an embodiment, work area 41 is the top surface of desk 51 . The illuminance is measured by an illuminance sensor installed in the work space 4, for example.

In the embodiment, in each work space 4, the sound control unit 12 controls the sound device 7 so as to reproduce music classified as jazz or bossa nova (hereinafter also referred to as "specific music") in the work space 4. . The sound control unit 12 controls the sound device 7 in each work space 4 so that the specific music is reproduced at a volume that can be sensed by the user U1 staying in the work space 4 . Specific music may include songs, songs, or the like played by an instrument. Moreover, the specific music is preferably music that can be expected to have the same zoning effect as the zoning effect that can be expected from illumination light. This is because, by doing so, it becomes easier to produce an effect that is more than a simple addition of the zoning effect that can be expected from the illumination light and the zoning effect that can be expected from the music, and an unexpected and favorable synergistic effect can be obtained. This is because it becomes easier to

The specific music is music that gives the user U1 a relaxing effect. For example, the specific music is music in which the parasympathetic nerves of the user U1 tend to be dominant over the sympathetic nerves. Note that the specific music does not need to have a clear melody or melody throughout, and may be composed of performances by non-tone instruments such as percussion instruments.

The storage unit 13 is a storage device that stores information (computer programs, etc.) necessary for each of the lighting control unit 11 and the sound control unit 12 to perform control. The storage unit 13 is implemented by, for example, an HDD (Hard Disk Drive), but may be implemented by a semiconductor memory, and known electronic information storage means can be used without particular limitation.

The lighting control unit 11, the sound control unit 12, and the storage unit 13 may all be mounted on the same substrate or housed in the same housing. The substrate or housing may be attached to the ceiling, walls, floor, or fixtures/furniture such as desks of the office 3 . In this case, the environment control system 100 excluding the display device 2 is miniaturized, which is preferable.

The display device 2 has a display section 21 that displays control parameters of the lighting control section 11 and the sound control section 12 . The display device 2 further includes an input reception unit 22 that receives input for setting control parameters. In the embodiment, the display section 21 and the input reception section 22 are realized by a touch panel display. The control parameters of the lighting control unit 11 can include, for example, the illuminance of the work space 4, the color temperature of the light emitted by the lighting load 6, the light distribution, or the like. Also, the control parameters of the sound control unit 12 may include, for example, the content to be reproduced, the volume of the sound device 7, or the like.

In the embodiment, the display device 2 is a dedicated controller for the environmental control system 100 and installed in the office 3 . Further, in the embodiment, the display device 2 is authenticated by a person (hereinafter referred to as an “authorized person”) who has authority to execute control by the environment control system 100, such as the user U1 or an administrator of the environment control system 100. It is configured so that it can be operated via

Note that the display device 2 may be realized by an information terminal possessed by an authorized person. An information terminal may include, for example, a smart phone, a tablet terminal, or a personal computer. In this case, the authorized person can use the information terminal as the display device 2 by installing an application for executing the function of the display device 2 on the information terminal and activating the application on the information terminal. is.

FIG. 3 is a schematic diagram showing an example of the display device 2 of the environmental control system 100 according to the embodiment. In the example shown in FIG. 3, the display unit 21 displays an image 211 representing the arrangement of each lighting load 6 and each sound device 7 in the office 3, an illumination adjustment bar 212, and a volume adjustment bar 213. . A plurality of work spaces 4 are virtually displayed in the image 211 . By touching the image 211 with a finger, the authorized person can make an input to select one of the work spaces 4 .

A knob 212a representing the current illuminance of the workspace 4 selected in the image 211 is displayed on the illuminance adjustment bar 212 . The authorized person can make an input to adjust the illuminance of the work space 4 by touching the knob 212a of the illuminance adjusting bar 212 and sliding it up and down. The input is transmitted from the display device 2 to the lighting controller 11 as a lighting control input.

The volume control bar 213 displays a knob 213a representing the current volume of the audio device 7 in the work space 4 selected in the image 211. FIG. The authorized person can make an input to adjust the volume of the audio device 7 in the work space 4 by touching the knob 213a of the volume control bar 213 with a finger and sliding it up and down. The input is transmitted from the display device 2 to the audio control unit 12 as an audio control input.

Here, the authorized person can change the lighting environment and sound environment of the work space 4 using the display device 2, but it is preferable that the changeable range is limited. This is because if the lighting environment and acoustic environment provided to the work space 4 by the environment control system 100 are changed beyond the permissible range, the expected effect on the user U1 cannot be exhibited.

Therefore, in the embodiment, the display unit 21 displays the range of control parameters that can be received by the input receiving unit 22 . In the example shown in FIG. 3, the illuminance adjustment bar 212 displays a shaded adjustable area 212b as a range in which the illuminance as the control parameter can be adjusted. In the example shown in FIG. 3, the volume adjustment bar 213 displays a shaded adjustable area 213b as a range in which the volume as a control parameter can be adjusted. Therefore, since it is easy for the authorized person to visually grasp the range in which the environment of the work space 4 can be changed, there is an advantage that the environment of the work space 4 is less likely to be changed beyond the allowable range.

In this embodiment, even if an authorized person attempts to slide the knob 212a out of the adjustable region 212b on the illumination adjustment bar 212, the knob 212a cannot be slid out of the adjustable region 212b. The same applies to the volume control bar 213 as well. This aspect has the advantage that it is possible to prevent the environment of the work space 4 from being changed beyond the permissible range.

[inspection]
Here, the inventor of the present application conducted the following experiment to verify the effects of the lighting environment on the user U1. That is, a plurality of subjects (here, several tens of people) are gathered in the experiment space (here, one office room), and each subject is given a predetermined task (here, personal work) while changing the conditions of the experiment space 1 minute of typing on a computer). Then, a questionnaire was given to each subject about their impressions of the experimental space for each condition of the experimental space.

Multiple desks are installed in the experimental space. Then, each subject performed typing work using a personal computer (here, a laptop personal computer) at one of the desks. In addition, multiple base lights are installed on the ceiling of the experimental space to uniformly illuminate the entire experimental space. In addition, each desk is equipped with a spotlight for locally illuminating the corresponding desk.

In addition, an acoustic device is installed in the experimental space. Under all the conditions of the experimental space, music classified as jazz or bossa nova reproduced by the acoustic device is playing in the experimental space.

In the questionnaire for each subject, responses were obtained regarding impressions of the experimental space for each of the five items. Specifically, for each of the five items, the impression of the experimental space was (a) very good, (b) fairly good, (c) somewhat good, (d) neither, (e) somewhat Each subject was asked to give a 7-grade evaluation of bad, (f) fairly bad, and (g) very bad.

Of the five items, the first item is whether or not the experimental space is calm, the second item is whether or not the experimental space is suitable for refreshing, and the third item is the experimental space. is whether or not it is easy to chat, and the fourth item is whether or not the space subject to the experiment is less tiring. Among the five items, the fifth item is whether or not the characters on the display of the personal computer used for typing work are easy to see. Both the fourth and fifth items are factors related to workability required when the user U1 works in the work space 4. FIG. The first to third items are all comfort-related factors that can induce communication between the user U1 and other users U1 in the work space 4 .

Then, the inventors of the present application quantitatively evaluated the conditions of the experimental space based on the results of questionnaires for each subject. Specifically, for each of the five items, the 7-point evaluation obtained in the questionnaire is treated as an equal interval scale, and the evaluations of (g), (f), ..., (a) are "-3", Scalar values of "-2", ..., "+3" were assigned. Then, based on this scalar value, a score was obtained for each spatial condition of the experimental object.

For example, it is assumed that the score for the first item is the average of the scalar values for the first item for each subject. In this case, if the score is the maximum value of "+3", it means that all the subjects have the impression of being "very calm" in the experimental space. On the other hand, if the score is the minimum value of "-3", it means that all the subjects have the impression of being "extremely restless" with respect to the experimental space.

The results of the above experiments are listed below. FIG. 4 is a diagram showing the results of the first experiment. In FIG. 4, the vertical axis represents the score for the experimental space, and the horizontal axis represents the conditions of the experimental space. In the first experiment, the score is a value obtained by dividing the total value of scalar values for a total of four items, 1st to 4th, of all subjects by the number of subjects. Therefore, in the first experiment, the maximum score is "+12" and the minimum score is "-12". In the first experiment, the condition of the experimental space is the color temperature (correlated color temperature) of the illumination light in the experimental space. In other words, FIG. 4 shows the results obtained by changing the color temperature of the illumination light in the experimental space and obtaining the score for each color temperature.

As indicated by the dashed line A1 in FIG. 4, the score is "+2" or higher when the color temperature of the illumination light in the experimental space is in the range of 2700K to 5000K. That is, the average value of the scalar values of each of the first to fourth items is "+0.5" or more. For this reason, when the color temperature of the illumination light in the experimental space is in the range of 2700K to 5000K, each subject is relatively calm, easy to have a change of mood, easy to chat, and I have the impression that it is hard to get tired.

Further, as indicated by the dashed line A2 in FIG. 4, the score is "+4" or higher when the color temperature of the illumination light in the experimental space is in the range of 3000K to 4500K. That is, the average value of the scalar values of each of the first to fourth items is "+1" or more. For this reason, when the color temperature of the illumination light in the experimental space is in the range of 3000K to 4500K, each subject is more likely to feel calm, change their mood, chat, and get tired of the experimental space. I have the impression that it is difficult.

According to the results of the first experiment, the inventor of the present application has found that the lighting control unit 11 controls the lighting load 6 so that the color temperature of the light emitted by the lighting load 6 is 2700K or higher and 5000K or lower. It was found that an effect of improving both the workability and comfort of the user U1 who performs the work can be expected. Further, according to the results of the first experiment, the inventors of the present application have found that the lighting control unit 11 controls the lighting load 6 so that the color temperature of the light emitted by the lighting load 6 is 3000K or more and 4500K or less, and thus the work space It was found that the effect of further improving both the workability and comfort of the user U1 who works in 4 can be expected.

FIG. 5 is a diagram showing the results of the second experiment. In FIG. 5, the vertical axis represents the score for the experimental space, and the horizontal axis represents the conditions of the experimental space. In the second experiment, the score is the scalar value for the 5th item for each subject. Therefore, in the second experiment, the maximum score is "+3" and the minimum score is "-3". In the second experiment, the condition of the experimental space is the color temperature (correlated color temperature) of the illumination light in the experimental space. In other words, FIG. 5 shows the results obtained by changing the color temperature of the illumination light in the experimental space and obtaining the score for each color temperature. In FIG. 5, the numerical values on the horizontal axis are represented by mired values, which are units of inverse color temperature. Moreover, in FIG. 5, when the scores of a plurality of subjects are the same, the scores are represented by one dot. That is, the number of dots per mired value shown in FIG. 5 is not the same as the number of subjects.

A straight line B1 shown in FIG. 5 represents the correlation between the score and the mired value approximately obtained as a linear function based on the scalar value for the fifth item of each subject. As shown in FIG. 5, there is a negative correlation between the score and the mired value. In other words, FIG. 5 shows the result that the lower the color temperature, the more difficult it is to see the characters on the display of the personal computer used for typing work. Then, as shown in FIG. 5, in the range where the mired value is approximately 300 or less (in other words, the range where the color temperature of the illumination light in the experimental space is approximately 3500 K or higher), the score is "0" or higher. there is For this reason, each subject had the impression that characters on the display of the personal computer used for typing work were easy to see when the color temperature of the illumination light in the experimental space was 3500 K or higher.

According to the results of the second experiment, the inventor of the present application has determined that the lighting control unit 11 controls the lighting load 6 so that the color temperature of the light emitted by the lighting load 6 is 3500 K or higher, so that work can be performed in the work space 4. It was found that the effect of further improving the workability of the user U1 who performs this can be expected.

FIG. 6 is a diagram showing the results of the third experiment. In FIG. 6, the vertical axis represents the score for the experimental space, and the horizontal axis represents the conditions of the experimental space. In the third experiment, the score is the sum of the scalar values for the first to fourth items. Therefore, in the third experiment, the maximum score is "+12" and the minimum score is "-12". In the third experiment, the condition of the experimental space is the illuminance of the experimental space. In other words, FIG. 6 shows the results obtained by changing the illuminance of the experimental space and calculating the score for each illuminance. In the third experiment, the color temperature (correlated color temperature) of the illumination light in the experimental space was fixed at 3500K.

A whisker C1 shown in FIG. 6 represents the range of standard deviation around the representative value (here, average value) of the scores of all subjects. A bar graph C2 shown in FIG. 6 represents the representative value (here, the average value) of the scores of all the subjects. As shown in FIG. 6, the representative value of the score is "+2.9" when the illuminance of the experimental space is 300 lx, while the representative score is "+2.9" when the illuminance of the experimental space is 750 lx. It is "+4.6". That is, in the latter case, the average value of the scalar values of the first to fourth items is "+1" or more. For this reason, when the illuminance of the experimental space is 750 lx, each subject has the impression that the experimental space is easy to calm down, easy to have a change of mood, easy to chat, and hard to get tired. there is

According to the results of the third experiment, the inventor of the present application has found that the lighting control unit 11 controls the lighting load 6 so that the illuminance of the work space 4 is 500 lx or more and less than 800 lx. It was found that the effect of further improving both the workability and comfort of U1 can be expected.

[motion]
An example of the operation of the environment control system 100 according to the embodiment will be described below. FIG. 7 is a flow chart showing an operation example of the environmental control system 100 according to the embodiment. Below, it is assumed that the lighting control unit 11 and the sound control unit 12 do not control the lighting load 6 and the sound device 7 installed in each work space 4 before receiving the lighting control input and the sound control input, respectively. explain.

First, the lighting control unit 11 and the sound control unit 12 wait until receiving a lighting control input and a sound control input, respectively (S1: No). Then, when the lighting control input and the sound control input are received (S1: Yes), the lighting control unit 11 and the sound control unit 12 control the lighting installed in each work space 4 according to the received lighting control input and sound control input, respectively. The load 6 and the acoustic device 7 are controlled (S2). Processing S2 and processing S4 and S5, which will be described later, correspond to the lighting control step ST1 of the environment control method. Processing S2 and processing S7 and S8, which will be described later, correspond to the sound control step ST2 of the environment control method. Thereby, the lighting environment and the acoustic environment of each work space 4 are controlled based on the lighting control input and the acoustic control input.

The lighting control input is, for example, a lighting schedule from working hours to closing hours on any given day. Also, the audio control input is, for example, an audio schedule from working hours to closing hours on an arbitrary day. In this case, the lighting environment and sound environment of each work space 4 are controlled according to the lighting schedule and sound schedule, respectively.

Thereafter, if there is no change in the received lighting control input (S3: No), the lighting control unit 11 maintains the above control (S4). On the other hand, if there is a change in the received lighting control input (S3: Yes), the lighting control unit 11 controls to change the lighting environment of each work space 4 based on the changed lighting control input (S5). . Thereby, the lighting environment of each work space 4 is updated.

Similarly, when there is no change in the received sound control input (S6: No), the sound control unit 12 maintains the above control (S7). On the other hand, if there is a change in the received acoustic control input (S6: Yes), the acoustic control unit 12 controls to change the acoustic environment of each work space 4 based on the changed acoustic control input (S8). . Thereby, the acoustic environment of each work space 4 is updated.

A change in lighting control input may occur, for example, when an authorized person uses the display device 2 to adjust the lighting environment of each workspace 4 . A change in the acoustic control input may occur, for example, when an authorized person uses the display device 2 to adjust the acoustic environment of each workspace 4 . Thereafter, the series of processes described above is repeated until the lighting schedule and the sound schedule are completed (S9: Yes).

[advantage]
Advantages of the environmental control system 100 according to the embodiment will be described below. First, the point of view of the inventor of the present application will be described. In recent years, users' work styles are diversifying, and for example, ABW type offices 3 and the like are on the rise. "ABW" is, as already mentioned, a work style in which the user U1 selects a place to work, a desk, or the like according to the content of the work. Specifically, "ABW" is a space or environment suitable for the activities of user U1, such as solo work where one person concentrates on work, group work where multiple people come up with ideas, etc. This work style aims to improve the productivity of the user U1 by preparing. Moreover, in recent years, there has been an increasing need for spaces such as co-working spaces, which are based on the premise of communication between users U1. Thus, in the office 3, both workability required when the user U1 performs work and comfort that can induce communication between the user U1 and other users U1 are required. Therefore, the inventors of the present application have studied a system that can achieve both workability and comfort for the user U1 in the office 3 .

Based on the results of the above [Verification], in the environment control system 100 according to the embodiment, the lighting control unit 11 is configured so that the color temperature of the light emitted by the lighting load 6 is 2700 K or more and 5000 K or less, and the work space The lighting load 6 is controlled so that the illuminance of 4 is 300 lx or more. Further, in the environment control system 100 according to the embodiment, the sound control unit 12 controls the sound device 7 to reproduce music classified as jazz or bossa nova in the work space 4 . As a result, the environment control system 100 according to the embodiment has the advantage that it is easy to improve both workability and comfort of the user U1 who works in the work space 4 .

(Modification)
Although the embodiments have been described above, the present invention is not limited to the above embodiments. Modifications of the embodiment are listed below. Modifications described below may be combined as appropriate.

In the embodiment, in each work space 4, the lighting control unit 11 and the sound control unit 12 may control the lighting load 6 and the sound device 7 during the day, and control the lighting load 6 and the sound device 7 at night. It may control the lighting load 6 and the sound system 7 both during the day and at night. By controlling the lighting load 6 and the acoustic device 7 in the daytime as described in the above embodiment, the lighting load is controlled so that the color temperature (correlated color temperature) becomes relatively high in the daytime considering the circadian rhythm. Compared with the case where only 6 is controlled, there is an advantage that both workability and comfort can be easily improved.

In the embodiment, in each work space 4, the sound control unit 12 preferably controls the sound device 7 so that the noise level of the work space 4 is 40 dB or more and less than 60 dB. For example, if the audio device 7 is controlled so that the noise level in the work space 4 is 60 dB or more, the user U1 will be annoyed by the music played from the audio device 7, and it is highly likely that the music will interfere with the work. On the other hand, in this aspect, there is an advantage that when the user U1 performs work, the music played back from the audio device 7 is less likely to interfere with the work.

In the embodiment, when there are a plurality of work spaces 4, the lighting control unit 11 and the sound control unit 12 are assigned to each of the work spaces 4 so that the environments of the work spaces 4 are different from each other. The lighting load 6 and the sound system 7 may also be controlled. As a result, it is possible to make the environment different for each target space 4, and different zoning effects for each target space 4 can be expected.

Further, in the above case, in one of the plurality of work spaces 4, the lighting control unit 11 controls the lighting load 6 so that the color temperature of the light emitted by the lighting load 6 is 3500 K or higher. In addition, the sound control unit 12 may control the sound device 7 to reproduce white noise or natural environmental sounds in the work space 4 . The “white noise” referred to here is sound having a certain level or more of sound pressure in a wide frequency range. In addition, "natural environmental sounds" here means sounds other than sounds and music emitted by everyday environments in the natural world, such as the sound of wind, the sound of waves, the sound of thunder, the sounds of animals, and the sounds of insects. is the sound. Preferably, the natural ambient sound is the sound of birds singing or running water.

As a result, compared to the case where only the illumination light from the illumination load 6 is provided to the work space 4, it is possible to provide a space that makes it easier to improve the mood. Instead of white noise and natural environmental sounds, other sounds that tend to increase the parasympathetic nerves of the user U1, such as noise or hustle and bustle in an urban area or store (cafe, etc.), may be used.

Furthermore, in the above case, in any one of the plurality of workspaces 4, the illumination control unit 11 causes the illuminance in the center of the workspace 41 in the workspace 4 to be higher than the illuminance in the other portions. and the sound control unit 12 may control the sound device 7 to reproduce white noise or natural environmental sounds in the work space 4 .

As a result, compared to the case where only the illumination light from the illumination load 6 is provided to the work space 4, it is possible to provide a space in which the effect of further enhancing concentration can be expected.

In the embodiment, the environmental control system 100 controls the lighting loads 6 and the audio equipment 7 of each of the multiple work spaces 4, but is not limited to this. For example, climate control system 100 may control only lighting loads 6 and sound devices 7 in one workspace 4 .

In the embodiment, the environmental control system 100 targets one office 3, but is not limited to this. For example, the climate control system 100 may target multiple offices 3 and control the lighting loads 6 and sound devices 7 in each workspace 4 for each office 3 .

In an embodiment, the environment control system 100 does not have to include the display device 2 . In this case, the environment control system 100 may be set in advance at the start of use of the environment control system 100 so as to control the lighting load 6 and the sound device 7, for example.

Although the lighting load 6 is not included in the environmental control system 100 in the embodiment, the lighting load 6 may be included in the environmental control system 100 .

Although the office 3 has a plurality of workspaces 4 in the embodiment, it is not limited to this. For example, office 3 may have only one workspace 4 . In other words, the entire office 3 may be the work space 4 .

Also, for example, in the above embodiment, the environmental control system 100 is implemented by a plurality of devices, but may be implemented as a single device. For example, the environmental control system 100 may be implemented as a single device corresponding to a server device. When the environment control system 100 is implemented by multiple devices, the components included in the environment control system 100 may be distributed to the multiple devices in any way. For example, the components included in the server device in the above embodiments may be included in an information terminal installed in a closed space. That is, the present invention may be realized by cloud computing or by edge computing.

For example, the communication method between devices in the above embodiments is not particularly limited. Further, a relay device (not shown) may intervene in communication between devices.

Also, in the above embodiments, each component may be realized by executing a software program suitable for each component. Each component may be realized by reading and executing a software program recorded in a recording medium such as a hard disk or a semiconductor memory by a program execution unit such as a CPU or processor.

Also, each component may be realized by hardware. For example, each component may be a circuit (or integrated circuit). These circuits may form one circuit as a whole, or may be separate circuits. These circuits may be general-purpose circuits or dedicated circuits.

Also, general or specific aspects of the present invention may be implemented in a system, apparatus, method, integrated circuit, computer program or recording medium such as a computer-readable CD-ROM. Also, any combination of systems, devices, methods, integrated circuits, computer programs, and recording media may be implemented.

For example, the present invention may be realized as a lighting control method executed by a computer such as the environment control system 100, or as a program for causing a computer to execute such a lighting control method. It may be implemented as a computer-readable non-temporary recording medium in which such a program is recorded.

In addition, forms obtained by applying various modifications to each embodiment that a person skilled in the art can think of, or realized by arbitrarily combining the constituent elements and functions of each embodiment without departing from the spirit of the present invention. Also included in the present invention.

(summary)
As described above, the environment control system 100 includes the lighting control section 11 and the sound control section 12 . The lighting control unit 11 controls the illuminance and color temperature of the lighting load 6 provided in the work space 4 . The sound control unit 12 controls the sound device 7 provided in the work space 4 . The lighting control unit 11 controls the lighting load 6 so that the color temperature of the light emitted by the lighting load 6 is 2700 K or more and 5000 K or less and the illuminance of the work space 4 is 300 lx or more. The sound control unit 12 controls the sound device 7 to reproduce music classified as jazz or bossa nova in the work space 4 .

According to the environment control system 100 as described above, there is an advantage that it is easy to improve both workability and comfort of the user U1 who works in the work space 4 .

Further, for example, in the environment control system 100, the lighting control unit 11 controls the lighting load 6 so that the color temperature of the light emitted by the lighting load 6 is 3000K or more and 4500K or less.

According to the environment control system 100 as described above, there is an advantage that it is easy to further improve both workability and comfort of the user U1 who works in the work space 4 .

Further, for example, in the environment control system 100, the lighting control unit 11 controls the lighting load 6 so that the color temperature of the light emitted by the lighting load 6 is 3500K or higher.

According to the environment control system 100 as described above, there is an advantage that it is easy to further improve the workability of the user U1 who works in the work space 4 .

Further, for example, in the environment control system 100, the lighting control unit 11 controls the lighting load 6 so that the illuminance of the work space 4 is 500 lx or more and less than 800 lx.

According to the environment control system 100 as described above, there is an advantage that it is easy to further improve both workability and comfort of the user U1 who works in the work space 4 .

Further, for example, in the environment control system 100, the lighting control unit 11 and the sound control unit 12 control the lighting load 6 and the sound device 7 during the daytime.

According to the environment control system 100 as described above, compared to the case where only the lighting load 6 is controlled so that the color temperature (correlated color temperature) becomes relatively high in consideration of the circadian rhythm during the daytime, workability and There is an advantage that it is easy to improve both comfortability.

Further, for example, in the environment control system 100, the sound control unit 12 controls the sound device 7 so that the noise level in the work space 4 is 40 dB or more and less than 60 dB.

According to the environment control system 100 as described above, there is an advantage that when the user U1 performs work, the music reproduced from the audio device 7 does not easily interfere with the work.

Further, for example, the environment control system 100 further includes a display device 2 having a display section 21 that displays control parameters of the lighting control section 11 and the sound control section 12 .

Such an environment control system 100 has the advantage that the authorized person can easily grasp the contents of the control visually.

Further, for example, in the environment control system 100, the display device 2 further includes an input reception unit 22 that receives input for setting control parameters. The display unit 21 displays the range of control parameters that can be received by the input receiving unit 22 .

According to the environment control system 100 as described above, it is easy for the authorized person to visually grasp the range in which the environment of the work space 4 can be changed. There is

Further, for example, the environment control system 100 has a plurality of work spaces 4 . The lighting control unit 11 and the sound control unit 12 control the lighting load 6 and the sound device 7 assigned to each of the plurality of work spaces 4 so that the environments of the work spaces 4 are different from each other.

According to such an environment control system 100, by providing a different environment for each work space 4, there is an advantage that it becomes easier for the user U1 to select a desired environment, and convenience for the user U1 tends to be improved. .

Further, for example, in the environment control system 100 , the lighting control unit 11 controls the lighting load so that the color temperature of the light emitted from the lighting load 6 is 3500 K or higher in one of the plurality of working spaces 4 . 6 is controlled. The sound control unit 12 controls the sound device 7 to reproduce white noise or natural environmental sound in the work space 4 .

According to the environment control system 100 as described above, there is an advantage that it is possible to provide a space in which the user U1 can relatively easily improve their mood.

Further, for example, in the environment control system 100 , in one of the plurality of work spaces 4 , the lighting control unit 11 controls the illuminance in the center of the work area 41 in the work space 4 to be the illuminance in the other portions. The lighting load 6 is controlled to be higher than . The sound control unit 12 controls the sound device 7 to reproduce white noise or natural environmental sound in the work space 4 .

Such an environment control system 100 has the advantage of being able to provide a space in which the user U1 can relatively easily concentrate.

Also, for example, the environment control method includes a lighting control step ST1 and a sound control step ST2. In the lighting control step ST1, the illuminance and color temperature of the lighting load 6 provided in the work space 4 are controlled. At the sound control step ST2, the sound device 7 provided in the work space 4 is controlled. In the lighting control step ST1, the lighting load 6 is controlled so that the color temperature of the light emitted by the lighting load 6 is 2700 K or more and 5000 K or less and the illuminance of the work space 4 is 300 lx or more. At the sound control step ST2, the sound device 7 is controlled to reproduce music classified as jazz or bossa nova in the work space 4. FIG.

According to such an environment control method, there is an advantage that it is easy to improve both workability and comfort of the user U1 who works in the work space 4 .

Also, for example, the program causes one or more processors to execute the environment control method described above.

According to such a program, there is an advantage that it is easy to improve both workability and comfort of the user U1 who works in the work space 4 .

REFERENCE SIGNS LIST 100 environmental control system 11 lighting control unit 12 sound control unit 2 display device 21 display unit 22 input reception unit 4 work space 41 work area 6 lighting load 7 sound device 8 information terminal ST1 lighting control step ST2 sound control step U1 user

Claims (13)

a lighting control unit that controls the illuminance and color temperature of a lighting load provided in the work space;
and an acoustic control unit that controls an acoustic device provided in the work space,
The lighting control unit controls the lighting load so that the color temperature of the light emitted by the lighting load is 2700 K or more and 5000 K or less and the illuminance of the work space is 300 lx or more,
The sound control unit controls the sound device to play music classified as jazz or bossa nova in the work space.
Environmental control system. The lighting control unit controls the lighting load so that the color temperature of the light emitted by the lighting load is 3000 K or more and 4500 K or less.
The environmental control system of claim 1. The lighting control unit controls the lighting load so that the color temperature of the light emitted by the lighting load is 3500K or higher.
The environment control system according to claim 1 or 2. The lighting control unit controls the lighting load so that the illuminance of the work space is 500 lx or more and less than 800 lx.
The environmental control system according to any one of claims 1-3. The lighting control unit controls the lighting load during the daytime.
The environmental control system according to any one of claims 1-4. The sound control unit controls the sound device so that the noise level in the work space is 40 dB or more and less than 60 dB.
The environment control system according to any one of claims 1-5. Further comprising a display device having a display unit for displaying control parameters of the lighting control unit and the sound control unit,
The environmental control system according to any one of claims 1-6. The display device further includes an input reception unit that receives input for setting the control parameters,
The display unit displays the range of the control parameters that can be received by the input reception unit.
An environmental control system according to claim 7 . wherein the workspace is a plurality of
The lighting control unit and the sound control unit control the lighting load and the sound device assigned to each of the plurality of work spaces so that the environments of the work spaces are different from each other.
The environmental control system according to any one of claims 1-8. In any one of the plurality of workspaces,
The lighting control unit controls the lighting load so that the color temperature of the light emitted by the lighting load is 3500 K or higher,
The sound control unit controls the sound device to reproduce white noise or natural environmental sound in the work space.
An environmental control system according to claim 9 . In any one of the plurality of workspaces,
The lighting control unit controls the lighting load so that the illuminance in the center of the work area in the work space is higher than the illuminance in other parts,
The sound control unit controls the sound device to reproduce white noise or natural environmental sound in the work space.
The environmental control system according to claim 9 or 10. a lighting control step of controlling the illuminance and color temperature of a lighting load provided in the work space;
an audio control step of controlling an audio device provided in the workspace,
In the lighting control step, the lighting load is controlled so that the color temperature of the light emitted by the lighting load is 2700 K or more and 5000 K or less and the illuminance of the work space is 300 lx or more;
In the sound control step, the sound device is controlled to play music classified as jazz or bossa nova in the work space.
Environmental control method. to one or more processors;
executing the environment control method according to claim 12;
program.

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