JP7329743B2 - Environmental control system - Google Patents

Description

The present disclosure relates to an environment control system that controls the environment in which people work.

2. Description of the Related Art Conventionally, there is a lighting system described in Patent Document 1. This lighting system facilitates efficient intellectual creation by performing different dimming controls according to different scenes such as conferences, meetings, and breaks in offices. Moreover, in recent years, ABW (Activity Based Working) offices have emerged as a result of work style reforms. In the ABW office, in order to improve the performance of the organization, we will prepare a space suitable for each worker's activities, such as solo work where one person concentrates on work and group work where multiple people come up with ideas. As an ABW office, a space suitable for worker activities is formed by partitioning the space with booth-type fixtures. Focusing on intensive work, as described in Patent Document 2, fixtures that minimize stimulation from the surroundings with partitions, etc. are known.

JP 2011-14341 A JP 2017-131572 A

Human concentration is not something that can be sustained permanently, and it is desirable to take a rest for a certain period of time. However, when booth-type fixtures are used, it is difficult for workers to voluntarily shift to a resting behavior because the visual environment cannot be switched by physical partitions, and the overall work performance tends to deteriorate.

Therefore, the purpose of the present disclosure is to reduce and expand surrounding recognition in an open area without using fixtures that block surrounding environment information such as partitions, so that people can easily take appropriate rest and work efficiently. To provide an environment control system that facilitates the realization of

In order to solve the above problems, the environment control system according to the present disclosure includes at least one ambient lighting that illuminates a wide area of a predetermined space, at least one task lighting that illuminates a visual target area in a work space within the predetermined space, To specify at least one task sound source for outputting sound in the work space and one or more people present in the work space to create an environment that encourages concentration or an environment that encourages people to rest. and a control device that executes dimming/toning control of ambient lighting, dimming/toning control of task lighting, and articulation control of task sound source, and the control device judges control content When it is determined that the work space should be the first environment that encourages the person to concentrate based on the signal from the department, the ambient lighting, the task lighting, and the task sound source are performed so as to make the work space an environment that encourages the person to concentrate. while executing the first control to control the work space, when it is determined that the work space should be set to the second environment that encourages the person to rest based on the signal from the control content determination unit, the work space is set to the environment that encourages the person to rest A second control is performed that controls the ambient lighting, the task lighting, and the task sound source such that

According to the environment control system according to the present disclosure, it is expected to have the effect of facilitating recognition of the surrounding environment and promoting resting behavior. Therefore, it becomes easier for a person to perform appropriate concentrated work, and it is easier for a person to take a rest at an appropriate timing. Therefore, it is easy to realize maintenance of highly efficient work performance.

(a) is a schematic diagram showing a work space 1 in which an environment control system according to an embodiment of the present disclosure is installed, and describes an example of dimming control of task lighting that is preferable when people are concentrated. It is a diagram. Also, (b) is a diagram illustrating an example of dimming control of task lighting that is preferable when it is desired to encourage rest. 1 is a block diagram of main parts in an environment control system; FIG. FIG. 10 is a graph showing the relationship between the work time during a person's concentrated work and its performance; FIG. It is a figure explaining dimming / toning control of ambient lighting and task lighting preferable when people are concentrating, and dimming / toning control of ambient lighting and task lighting preferable when people are resting. . Controlling of a control device that can realize highly efficient work performance by specifying the appropriate time to change the concentration environment to the environment that promotes rest based on the person's drowsiness and appropriately providing the person with the rest environment. 4 is a flow chart of an example; It is different from FIG. 5 in the control device that can realize highly efficient work performance by specifying the appropriate time of the environment that encourages appropriate rest based on the person's drowsiness and appropriately providing the person with the rest environment. 4 is a flow chart of control; FIG. 3 is a block diagram corresponding to FIG. 2 in a modified environment control system; FIG. 6 is a flow chart corresponding to FIG. 5 in a control device that considers human irritability in addition to human drowsiness; FIG. FIG. 7 is a flow chart corresponding to FIG. 6 in a control device that considers human irritability in addition to human drowsiness.

Embodiments according to the present disclosure will be described in detail below with reference to the accompanying drawings. In addition, when a plurality of embodiments and modifications are included in the following, it is assumed from the beginning that the characteristic portions thereof will be appropriately combined to construct a new embodiment. Further, in the following embodiments, the same reference numerals are given to the same configurations in the drawings, and redundant explanations are omitted. In addition, a plurality of drawings include schematic diagrams, and the dimensional ratios of length, width, height, etc. of each member do not necessarily match between different drawings. In addition, among the constituent elements described below, constituent elements that are not described in independent claims indicating the highest concept are optional constituent elements and are not essential constituent elements. In addition, the present disclosure is not limited to the following embodiments and modifications thereof, and various improvements and modifications are possible within the scope of the claims of the present application and their equivalents.

FIG. 1(a) is a schematic diagram showing a work space 1 in which an environment control system 10 according to an embodiment of the present disclosure is installed, and a schematic diagram showing the work space 1 while the first control is being executed. It is a diagram. Also, FIG. 1(b) is a schematic diagram showing the work space 1 during execution of the second control. 2 is a block diagram of main parts of the environment control system 10. As shown in FIG.

A person 2 performs intellectual work in a work space 1, for example, on a work desk 4 shown in FIG. Intellectual tasks are mental tasks such as working, studying or reading. A work space 1 is a space for a person 2 to perform intellectual work. The work space 1 may be composed of, for example, one room in an office building, cram school, or school, or may be a local (partial) space in those rooms. On the floor 3 of the work space 1, a work desk 4 for the person 2 to perform intellectual work and a chair 6 for the person 2 to sit on are arranged. The work desk 4 has a work surface 5 as an example of a visual target area, and at least part of the work surface 5 serves as a work area for intellectual work. As shown in FIG. 1( a ), the environment control system 10 includes ambient lighting 20 , task lighting 30 , task sound source 40 , and personal computer (hereinafter simply referred to as personal computer) 50 . Further, as shown in FIG. 2 , the environment control system 10 includes a control device 51 , a drowsiness detection sensor 57 as an example of a biological information acquisition sensor, a behavior information acquisition sensor 59 , and a task lighting on/off operation section 58 . The drowsiness detection sensor 57 and the action information acquisition sensor 59 are included in the control content determination unit. Each configuration of the environment control system 10 will be described below.

[Ambient lighting]
The fixture form of the ambient lighting 20 is not particularly limited, and various lighting fixtures such as a ceiling light, line light, floor light, downlight, and pendant light can be applied as the ambient lighting 20, for example. Since this control includes control for differentiating the illuminance and color temperature, which will be described later, between the ambient lighting used as ambient light and the task lighting that illuminates the work surface, the ambient lighting 20 is dimming toning lighting. It is preferred to apply an instrument.

[Task lighting]
The fixture form of the task lighting 30 is not particularly limited, and the task lighting 30 may be, for example, a desk light, a spotlight, or a downlight. As the task lighting 30, it is preferable to adopt a light distribution control that collects light in a specific area because it is easy to control the lighting range of the work desk 4. It is preferable to employ a formula spotlight.

The task lighting 30 is lighting for enhancing the working efficiency of the worker's work, such as personal computer operation, writing, and reading, and is lighting that selectively illuminates the visual target area of the work desk 4 . The visual target area is an area that can generally be seen when working on the work desk 4 . is the center of the visual object area. At this time, we do not take into account changes in visual objects due to physiological factors or accidental changes in posture or line of sight. Events such as moving one's eyes to the floor due to coughing or moving one's eyes due to being spoken to by someone are not considered as significant changes in the visual object area on the work desk 4 .

The lighting range of the task lighting 30 is preferably limited to a part of the visual target area, and for example, preferably 30% to 90% of the area of the work desk 4 is the lighting range. Although the lighting range of the task lighting 30 is not particularly limited, it is preferably substantially circular or substantially polygonal. By doing so, the brightness of the visual target region becomes brighter than the brightness of the non-visual target region, and the cognitive noise in the peripheral vision is reduced. Therefore, the consciousness of the person 2 is directed to the work desk 4 side, and it is easy to improve work efficiency.

Here, the illumination range can be calculated as a position where the maximum value of the amount of light per unit area reaching the work desk 4 is halved, and is generally referred to as a half width. The illumination range can be measured and calculated using a known illuminometer. Although the color temperature of the task lighting 30 is not particularly limited, a color temperature of 4000K to 6500K is preferable because it facilitates cognitive concentration.

The ambient lighting 20 and the task lighting 30 may be interlocked and controlled as a system. As means for interlocking control, for example, a fixture control device other than the lighting fixture may be used. At this time, the appliance control device may be a terminal such as a personal computer, a smartphone, or a tablet, or may be a dedicated device such as a multi-manager (for example, NQ51101: Panasonic). When such interlocking control is performed, setting, operation, and management of the ambient lighting 20 and the task lighting 30 become easier for the user, which is preferable.

[Task sound source]
The task sound source 40 is a device that outputs sound only around the peripheral area of the work desk 4 in the work space 1, preferably around the central area of the work desk 4. FIG. The task sound source 40 is composed of a speaker, and the instrument form of the speaker is not particularly limited. As the speaker, for example, as shown in FIG. 1(a), one that is connected to the personal computer 50 via a USB cable can be employed, one that is built into the personal computer 50, and one that is suspended from a duct rail. etc. can be adopted. More specifically, the task sound source 40 is preferably a directional speaker, such as a parametric speaker. Since the parametric speaker uses ultrasonic waves, it is possible to give a remarkable directivity to the output direction of the sound, and it is possible to send the sound only around the center area of the work desk 4 in the work space 1. Sound can be efficiently output only to the person 2 working at the desk 4. - 特許庁Also, the person 2 may listen to the sound from the task sound source 40 using earphones or headphones.

[Control device]
The control device 51 is a device for controlling the task lighting 30 and the task sound source 40 . For example, as shown in FIG. 1A, the control device 51 may be built in a personal computer 50, or may be built in a tablet, a workstation, a smart phone, a server on the cloud, or the like. The control device 51 is preferably configured by a computer such as a microcomputer, and includes a control section 52 and a storage section 53 . The control unit 52, that is, the processor includes, for example, a CPU (Central Processing Unit). The storage unit 53 is composed of non-volatile memory such as ROM (Read Only Memory) and volatile memory such as RAM (Random Access Memory). The CPU reads and executes a program or the like stored in advance in the storage unit 53 . In addition, the nonvolatile memory pre-stores a control program, a predetermined threshold value, and the like. Also, the volatile memory temporarily stores read programs and processing data.

The storage unit 53 preliminarily stores light adjustment/color adjustment data and tone adjustment data that can reproduce scenes realized by the first control described later, and light adjustment/color adjustment data that can reproduce scenes realized by the second control described later. Color data and articulation data are also pre-stored. Furthermore, the storage unit 53 stores data for determining the degree of drowsiness and irritation described later, more specifically, the following values related to the person 2: eye movement, body movement, blink cycle and angle of mouth The data such as the distance between the eyebrows, the skin temperature, the amount of heat radiation, and the behavioral information, and the degree of awakening of consciousness (drowsiness), emotion, and fatigue at that time are stored in association with each other. Further, the control device 51 incorporates a timer 54 so that the control device 51 can measure time. The timer 54 is included in the control content determination section.

[Drowsiness detection sensor]
The drowsiness detection sensor 57 may be built in, for example, on the front side of the personal computer 50 so that the sensor surface is exposed to the outside, and is located at a location where the face of the person 2 sitting on the work desk 4 in the work space 1 can be captured. may be attached. The drowsiness detection sensor 57 includes a camera 57a and an infrared sensor 57b. The camera 57a is used to acquire a camera image capturing the person's 2 face, and the infrared sensor 57b is used to measure the surface temperature of the person's 2 face. Camera images and surface temperature are used to determine drowsiness and thermal sensations, as well as emotions such as joy and anger. The drowsiness determination unit 52a of the control unit 52 performs processing for extracting values such as the blink cycle, the angle of the corner of the mouth, the distance between the eyebrows, the skin temperature, and the amount of heat dissipation based on the images captured by the camera 57a and the infrared sensor 57b. . It is known that each value of these parameters collected from a subject is associated with the degree of arousal of consciousness (drowsiness) and emotion at the time when each value was calculated. As described above, each value of the parameter and the degree of awakening of consciousness (drowsiness) and emotion at the time when each value was calculated are stored in the storage unit 53 in association with each other. Therefore, by sensing the face of the person 2 with the drowsiness detection sensor 57, it is possible to identify the drowsiness and the degree of irritation of the person 2 at that time.

[Action information acquisition sensor]
The behavior information acquisition sensor 59 may use, for example, conventionally known schedule management software (for example, Office365) to acquire the schedule information of the person 2 . The data obtained is used to identify the appropriate time to change from a concentration environment to one that encourages rest. In addition, position information of person 2, task contents before this control is performed, task contents when this control is performed, typing speed, previous day / past sleep time / wake-up time, number of mouse clicks, frequency of leaving seat / Behavioral information such as the number of conversations, number of conversations, conversation status (conversation content, speed during conversation, etc.), break time and frequency on the day, drug intake history (including information such as drug action), eating and drinking history on the previous day and on the day As a sensor for acquiring, a camera, an infrared sensor, an electromagnetic wave sensor, an ultrasonic sensor, an acceleration sensor, a weight sensor, a motion sensor, conventionally known task management software, an audio sensor, or the like may be used. The behavior information data of the person 2 obtained from those sensors is associated with the person's 2 arousal level, emotion, fatigue level, and the like. Therefore, by acquiring these behavior information data, it is possible to specify the arousal level, the frustration level, the fatigue level, etc. of the person 2 during the control of the present disclosure.

Next, the purpose (significance) of the control of the present disclosure and its contents will be described. FIG. 3 is a graph showing the relationship between the work time during concentrated work of the person 2 and its performance. Referring to FIG. ₃ , as shown by curve f1, it is said that 90 minutes is the limit for the duration of concentration of person 2. In general, after 90 minutes, work performance gradually tend to decline to Here, when performance starts to decline, taking distracting actions, such as resting, can improve overall work performance.

However, the duration of concentration of person ₂ is likely to be affected by individual differences and physical condition. , curve _f3 , the concentration of person 2 may persist for more than 90 minutes. In either case, the purpose of the control of the present disclosure is that controller 51 controls ambient lighting 20, task lighting 30, and task sound source 40, as described below, to create work space 1 in a concentration-enhancing environment. To realize excellent work performance as a whole work time by appropriately changing from to environment to promote rest.

The means of shielding the visual field and sound with fixtures, as described in Patent Document 2, is certainly effective in making people shift to the concentration mode. , Even if the work performance peak is exceeded, it is difficult to give the opportunity to stop the work, take a break, or improve the performance because the place is a closed space. . For example, the condition of outside light coming through the window, the voices of people in the office, the seating and leaving situation in other places, etc. This is due to the fact that it is physically isolated, and there is a problem as a work space for concentrated work.

On the other hand, in the present disclosure, visual recognition and auditory recognition are positively controlled while judging the concentration state of the person 2 by making full use of lighting and sound. Therefore, it is possible to flexibly respond to the concentration state of the person 2, effectively improve the above problems, and construct a concentration work space in which excellent work performance can be easily achieved. In addition, in the conventional office scene, it is common to perform the color temperature and illuminance distribution of lighting, the volume and content of sound in areas such as work desks and corridors with high uniformity both spatially and temporally. there were. On the other hand, since the present application uses such a technique and control method, it is possible to achieve remarkable effects that could not be foreseen with conventional lighting knowledge, especially in ABW office scenes.

Next, control of the present disclosure will be described. First, dimming control of the task lighting 30, which is preferable when the person 2 is concentrating, and dimming/toning control of the task lighting 30, which is preferable when the person 2 is encouraged to rest, will be described. FIG. 4 is a diagram for explaining dimming/toning control of the task lighting 30 suitable for those environments. As shown in FIG. 4, in the centralized environment, the illumination light of the task illumination 30 is controlled to be brighter by increasing the illuminance difference from the illumination light of the ambient illumination 20, or the illumination light of the task illumination 30 is adjusted. , by controlling the toning so that the color difference from the illumination light of the ambient lighting 20 is increased, an environment in which the person 2 can easily concentrate can be generated. Further, as shown in FIG. 1(a), if the lighting light of the task lighting 30 is dimmed so as to reduce the spot diameter on the irradiation surface, it is possible to create an environment in which the person 2 can easily concentrate. In the environment, if dimming control is performed so that the fluctuation of the illumination light of the task lighting 30 with respect to time becomes small, an environment in which the person 2 can easily concentrate can be generated. In addition, when the task lighting 30 does not project video content onto the irradiation surface, it is easier to create an environment in which the person 2 can easily concentrate.

On the other hand, as shown in FIG. 4, in an environment where it is desired to encourage rest, for example, in a rest environment, dimming control is performed so that the illuminance difference between the illumination light of the task illumination 30 and the illumination light of the ambient illumination 20 becomes small. Alternatively, if the lighting light of the task lighting 30 is controlled to have a smaller color difference from the lighting light of the ambient lighting 20, an environment in which the person 2 can easily relax can be generated, and the person 2 can easily recognize the surrounding environment. Become. In addition, as shown in FIG. 1B, the illumination light of the task lighting 30 is adjusted so that the spot diameter on the irradiation surface becomes larger in comparison with the control of the task lighting 30 in the environment where the person 2 wants to concentrate. When controlled, an environment can be generated in which the person 2 can easily recognize the surrounding environment. In addition, if dimming control is performed so that the illumination light of the task lighting 30 fluctuates more over time, it is possible to create an environment in which the person 2 can easily recognize the surrounding environment. It is easy to generate an environment in which the person 2 can easily relax.

Generally, in a concentration environment, if the illumination light of the task lighting 30 is dimmed so as to narrow the visual environment of the person 2, the person 2 can easily concentrate on the work. Conversely, in an environment where it is desired to encourage rest, for example, in a rest environment, if the illumination light of the task lighting 30 is dimmed so as to expand the visual environment of the person 2, the person 2 shifts to the rest action phase. easy. Regarding the articulation control of the task sound source 40, it is preferable to make it difficult for the person 2 to notice the sounds of the surrounding environment by performing articulation control so that the volume of the sound output by the task sound source 40 is increased in a concentrated environment. Conversely, in an environment where it is desired to encourage rest, for example, in a rest environment, articulatory control is performed so that the volume of the sound output by the task sound source 40 is reduced, making it easier for the person 2 to notice the sounds in the surrounding environment. preferably.

Regarding the sound output by the task sound source 40, in a concentration environment, it is preferable that a sound that enables masking noise is selected as the content of the sound to be selected. It is preferable to output sound or TV sandstorm sound. Conversely, regarding the sound output by the task sound source 40, in an environment in which it is desired to encourage rest, for example, in a rest environment, etc., as content of the sound to be selected, a relaxing sound such as that played in a cafe is selected. Preferably, for example classical, bossa nova or jazz music is selected.

Next, a description will be given of a specific control that makes it easy for the person 2 to take appropriate rest and to achieve highly efficient work performance. Fig. 5 shows that, based on the drowsiness of Person 2, identifying an appropriate time to change the concentration environment to an environment that promotes rest, and appropriately providing Person 2 with a rest environment, realizes highly efficient work performance. 5 is a flow chart of an example of control by a control device 51 capable of performing;

5, a person 2 operates a personal computer 50, a remote controller, a tablet, or a task lighting on/off operation unit 58 (see FIG. 2) provided on the wall surface of the work space 1 to turn on the task lighting 30. to start control. When the control starts, the process proceeds to step S1, and the control device 51 controls the ambient lighting 20, the task lighting 30, and the task sound source 40 so that the work space 1 is an environment that encourages the person 2 to concentrate. to run. Specifically, the control device 51 applies dimming control to the ambient lighting 20 and the task lighting 30 based on the scene data for executing the first control stored in the storage unit 53, and performs articulation control to the task sound source 40. Apply. Regarding this control, the control device 51 outputs a control signal to the task sound source 40 via the USB cable, and outputs information to the task lighting 30 by a wireless signal. Any wireless signal such as Wi-Fi (registered trademark) or BlueTooth (registered trademark) can be used.

As a specific control in step S1, the control device 51 performs one or more controls out of four controls for making the work space 1 an environment in which the person 2 can concentrate, for example, as described with reference to FIG. More specifically, the task lighting 30 is controlled by one or more of illuminance difference with ambient light, color difference with ambient light, spot diameter, and motion. In addition, the control device 51 controls at least one of outputting the sound of flowing water and the sound of a sandstorm on a television from the task sound source 40 and increasing the volume output by the task sound source 40 to a predetermined value or more. conduct.

The control for increasing the illuminance difference from ambient light can be executed, for example, by increasing the duty ratio of on/off control and supplying a large amount of power to the light source. In addition, the control to increase the color difference from the ambient light is, for example, the task lighting 30 is equipped with a plurality of light sources that emit light of a plurality of different colors, and furthermore, the color and color difference of the illumination light emitted by the ambient lighting 20 are different. It can be realized by emitting light from a light source that becomes larger. Also, the control to change the spot diameter can be realized, for example, by using the task lighting 30 having a movable lens whose position in the height direction can be changed, and by moving the position of the movable lens to a position away from the light source. Also, the control to reduce the movement can be realized by, for example, controlling the intervals of the on/off control to vary.

After step S1 ends, the process proceeds to step S2. In step S2, based on information from the timer 54, the controller 51 determines whether or not a first predetermined time has elapsed since the first control was executed. The first predetermined time may be any time, and as the first predetermined time, for example, any time between 15 minutes and less than 30 minutes can be adopted. If a negative determination is made in step S2, step S2 is repeated, and if an affirmative determination is made in step S2, the process proceeds to step S3.

In step S3, the drowsiness determination unit 52a of the control device 51 determines whether or not the person 2 feels drowsiness based on the information from the drowsiness detection sensor 57 and the information stored in the storage unit 53 described above. judge. If a negative determination is made in step S3, step S3 is repeated and the first control continues. On the other hand, if an affirmative determination is made in step S3, the process proceeds to step S4, and the control device 51 sets the ambient lighting 20, the task lighting 30, and the task lighting so as to make the work space 1 an environment that encourages the person 2 to rest. A second control for controlling the sound source 40 is executed.

Specifically, the control device 51 controls one or more of the four controls for making the work space 1 an environment that encourages the person 2 to rest, which was described using FIG. Controlling one or more of task lighting 30 illumination difference, ambient lighting 20 and task lighting 30 color difference, spot size, and movement to task lighting 30, or providing task lighting 30 with video content on the illuminated surface. Execute the control to project. In addition, the control device 51 controls the task sound source 40 so that the volume of the sound output by the task sound source 40 is smaller than the predetermined value in the environment where the person 2 is desired to concentrate; Control at least one of outputting a flowing relaxing sound.

When step S4 ends, the process proceeds to step S5, and it is determined whether or not the second predetermined time has elapsed since the control device 51 executed the second control based on the information from the timer . Any time may be sufficient as a 2nd predetermined time, for example, it may be set to any time from 5 minutes to 20 minutes. If a negative determination is made in step S4, step S4 is repeated to continue the second control. On the other hand, if an affirmative determination is made in step S4, control returns, and steps S1 and subsequent steps are repeated. The control shown in FIG. 5 ends when, for example, person 2 turns off the task lighting 30 using the task lighting on/off operation unit 58 .

FIG. 6 shows a control device 51 that can realize highly efficient work performance by identifying an appropriate time for an appropriate concentration relaxation environment based on the drowsiness of the person 2 and appropriately providing the person 2 with a rest environment. 6 is a flowchart of control different from FIG. 5 in FIG.

In the control shown in FIG. 5, each of the first control and the second control is maintained for a predetermined period of time. However, in the control shown in FIG. 6, the first control and the second control do not have to be maintained for a predetermined period of time. Specifically, in the control shown in FIG. 6, when the person 2 operates the task lighting on/off operation unit 58 (see FIG. 2) to turn on the task lighting 30 and the control starts, in step S11, the above-described The same first control as in S1 is executed, then the process proceeds to step S12, the same control as in S3 described above is executed, and whether or not the person 2 is drowsy is determined.

If a negative determination is made in step S12, step S12 is repeated, and if an affirmative determination is made in step S12, the process proceeds to step S13 and the same second control as S4 described above is executed. In step S14 after step S13, the same control as in S3 described above is executed again to determine whether or not the person is drowsy. If an affirmative determination is made in step S14 and it is determined that the sleepiness of the person 2 continues, step S14 is repeated to continue the second control. On the other hand, if a negative determination is made in step S14 and it is determined that the person 2 has stopped feeling sleepy, the control returns, and steps S11 and subsequent steps are repeated. The control shown in FIG. 6 also ends when the person 2 turns off the task lighting 30 using the task lighting on/off operation unit 58 . In the control shown in FIG. 6, it is possible to switch between the first control and the second control in a short period of time based on whether or not the person 2 is drowsy.

Also, in the control described with reference to FIGS. 5 and 6, the case where the time to change from the environment in which the person 2 tends to concentrate to the environment encouraging the person 2 to rest is determined based on the drowsiness of the person 2 has been described. However, the time to change from the environment in which the person 2 is likely to concentrate to the environment in which the person 2 is encouraged to rest may be determined based on the drowsiness of the person 2 and the irritation of the person 2 . In the control described with reference to FIGS. 5 and 6, the time when the person 2 turned on the task lighting 30 and the time when the person 2 started work was specified, but when the person 2 moved to the work space 1 When, more specifically, when person 2 is seated in chair 6, it may be identified as when person 2 begins work.

More specifically, as shown in FIG. 7, that is, a block diagram corresponding to FIG. 2 in the environment control system of the modified example, the presence sensor 158 may be used instead of the task lighting on/off operating unit 58. FIG. Here, the presence sensor 158 may be, for example, a weight sensor installed on the chair 6 in the work space 1. By detecting that the person 2 is sitting on the chair 6, it is possible to detect that the person 2 is working. may be specified. Alternatively, the presence sensor 158 may be, for example, a human sensor attached to the upper part of the work space 1 such as the ceiling of the work space 1, and the human sensor may be configured by, for example, an infrared sensor. Further, the control unit 152 may have an irritation determination unit 152b in addition to the drowsiness determination unit 52a. As described above, whether or not the person 2 is irritated can be accurately determined based on the image information of the person 2's face from the camera 157a and the information of the person 2's face from the infrared sensor 157b. The irritation determination unit 152b determines whether or not the person 2 is irritated based on information from the camera 157a, information from the infrared sensor 157b, and information stored in the storage unit 53. FIG.

FIG. 8 is a flowchart corresponding to FIG. 5 in the control device 151 (see FIG. 7) that considers the irritability of the person 2 in addition to the drowsiness of the person 2 . Referring to FIG. 8, when the presence sensor 158 determines that the person 2 is seated on the chair 6, the control starts. A first control is performed to control the ambient lighting 20, the task lighting 30, and the task sound source 40 so as to do so.

After step S21 ends, the process proceeds to step S22. In step S22, based on the information from the timer 54, the control device 151 determines whether or not the first predetermined time has passed since the first control was executed. The first predetermined time may be any time, and as the first predetermined time, for example, any time between 15 minutes and less than 30 minutes can be adopted. If a negative determination is made in step S22, step S22 is repeated, and if an affirmative determination is made in step S22, the process proceeds to step S23.

In step S23, the drowsiness determination unit 52a of the control device 151 detects the person 2 based on information from the drowsiness/emotion detection sensor 157, which is an example of a biological information acquisition sensor, and information stored in the storage unit 53. Determine whether or not the user is feeling sleepy. As the drowsiness/emotion detection sensor 157, the same sensor as the drowsiness detection sensor 57 described above can be used. If a negative determination is made in step S23, the process proceeds to step S24, and the irritation determining unit 152b of the control device 151 determines the information based on the information from the drowsiness/emotion detection sensor 157 and the information stored in the storage unit 53. It is determined whether or not the person 2 feels irritated. If a negative determination is made in step S24, step S23 and subsequent steps are repeated.

On the other hand, if an affirmative determination is made in step S23 or if an affirmative determination is made in step S24, the process proceeds to step S25. In step S25, the control device 151 performs a second control that controls the ambient lighting 20, the task lighting 30, and the task sound source 40 so as to make the work space 1 an environment that encourages the person 2 to rest. When step S25 ends, the process proceeds to step S26, and it is determined whether or not the second predetermined time has elapsed since the control device 151 executed the second control based on the information from the timer 54. Any time may be sufficient as a 2nd predetermined time, for example, it may be set to any time from 5 minutes to 20 minutes. If a negative determination is made in step S26, step S26 is repeated to continue the second control. On the other hand, if an affirmative determination is made in step S26, control returns, and steps S21 and subsequent steps are repeated. The control shown in FIG. 8 ends, for example, when the person 2 leaves the chair 6 and the seat presence sensor 158 cannot detect the person 2 .

Alternatively, the control device 151 may perform control considering the drowsiness and irritation of the person 2 as follows. FIG. 9 is a flow chart corresponding to FIG. 6 in the control device 151 (see FIG. 7) that considers the irritability of the person 2 in addition to the drowsiness of the person 2 .

Referring to FIG. 9, when the presence sensor 158 determines that the person 2 is seated on the chair 6, the control starts. A first control is performed to control the ambient lighting 20, the task lighting 30, and the task sound source 40 so as to do so.

When step S31 ends, the process proceeds to step S32, and the drowsiness determination unit 52a of the control device 151 determines whether the person 2 is determined based on the information from the drowsiness/emotion detection sensor 157 and the information stored in the storage unit 53. Determine whether or not the user is feeling sleepy. If a negative determination is made in step S32, the process proceeds to step S33, and the irritation determination unit 152b of the control device 151 determines the information from the drowsiness/emotion detection sensor 157 and the information stored in the storage unit 53. It is determined whether or not the person 2 feels irritated. If a negative determination is made in step S33, step S32 and subsequent steps are repeated.

On the other hand, if an affirmative determination is made in step S32 or if an affirmative determination is made in step S33, the process proceeds to step S34. In step S34, the control device 151 performs a second control that controls the ambient lighting 20, the task lighting 30, and the task sound source 40 so as to make the work space 1 an environment that encourages the person 2 to rest. After step S34 is completed, the process proceeds to step S35, and the drowsiness determination unit 52a of the control device 151 detects the person 2 based on the information from the drowsiness/emotion detection sensor 157 and the information stored in the storage unit 53. determines whether or not is feeling sleepy.

If an affirmative determination is made in step S35, step S35 is repeated and the second control continues. On the other hand, if a negative determination is made in step S35, the process proceeds to step S36, and the irritation determination unit 152b of the control device 151 compares the information from the drowsiness/emotion detection sensor 157 and the information stored in the storage unit 53. Determine whether the person 2 is irritated based on

If an affirmative determination is made in step S36, step S35 and subsequent steps are repeated to continue the second control. On the other hand, if a negative determination is made in step S36, control returns, and steps S31 and subsequent steps are repeated. The control shown in FIG. 9 ends, for example, when the person 2 leaves the chair 6 and the seat presence sensor 158 cannot detect the person 2 .

When the control shown in FIG. 8 or 9 is executed, it is possible to change from an environment that encourages concentration to an environment that encourages rest, taking into consideration not only the drowsiness of the person 2 but also the irritation of the person 2 . Therefore, it is possible to provide an environment in which the person 2 can easily take a proper rest and can easily achieve highly efficient work performance. In the modified example, whether or not the person 2 is irritated is determined based on the information acquired by the camera 157a and the infrared sensor 157b. However, whether or not the person 2 is irritated may be determined based on, for example, the degree of shaking of the person 2 detected by an acceleration sensor installed in the belongings (including clothing) such as an ID card possessed by the person 2. In this case, the acceleration sensor is included in the biological information acquisition sensor.

It should be noted that the control of the above embodiments and modifications was performed for one person, ie, an individual. However, the control of the above embodiments and modifications is based on at least one of biometric information data and behavior information data of one or more people, that is, a plurality of people who are gathered together in a certain unit or scattered in the other. In order to achieve highly efficient performance on a group-by-group basis, the above-described control details may be determined, and control may be executed collectively on a group-by-group basis. At this time, an average value or a median value of an index with data of a plurality of persons may be calculated and regarded as the states of the plurality of persons.

Such control makes it easier to realize highly efficient performance not only for individuals but also for organizational units, and it is also possible to promote rest collectively for organizational units, making it easier to increase communication opportunities. Therefore, it becomes easier for the organization to maintain good mental health.

In addition, if such an environment control method is used, since it includes means that can be easily controlled digitally, such as dimmable lighting and BlueTooth (registered trademark) compatible speakers, layouts can be made using conventional fixtures and furniture. Active zoning, which changes the layout and zones according to the performance of workers and organizations that can change in a short cycle such as hourly or daily, is preferable compared to the zoning method.

A case has been described in which the drowsiness detection sensor 57 and the drowsiness/emotion detection sensor 157, which are biological information acquisition sensors, are used to determine which of the first control and the second control is to be performed. However, in addition to the biological information acquisition sensor, a behavior information acquisition sensor that acquires human behavior information is used to determine the arousal level, emotion, and fatigue level of the person 2, and based on the determination, the first control and the second control You may judge which control to perform. Alternatively, a behavior information acquisition sensor that acquires human behavior information instead of the biological information acquisition sensor is used to determine the arousal level, emotion, and fatigue level of the person 2, and the first control or the second control is performed based on the determination. may be performed. In addition, the environment control system of the present disclosure only needs to have some kind of control content determination unit, and does not include one, two, or all of the biological information acquisition sensor, the behavior information acquisition sensor, and the timer. good too.

As described above, the environment control system 10 includes at least one ambient lighting 20 that illuminates a wide range of a predetermined space, at least one task lighting 30 that illuminates a visual target area in the work space 1 within the predetermined space, and sound lighting in the work space 1. and at least one task sound source 40 for outputting and control contents for specifying whether to create an environment that encourages the person 2 present in the work space 1 to concentrate or to create an environment that encourages the person 2 to rest. A determination unit, and a control device 51 that executes dimming/toning control of the ambient lighting 20 , dimming/toning control of the task lighting 30 , and articulation control of the task sound source 40 . When the control device 51 determines that the work space 1 should be set to the first environment that encourages the person 2 to concentrate based on the signal from the control content determination unit, the control device 51 changes the work space 1 to the environment that encourages the person 2 to concentrate. A first control is performed to control the ambient lighting 20, the task lighting 30, and the task sound source 40 so that When the control device 51 determines that the work space 1 should be set to the second environment that encourages the person 2 to rest based on the signal from the control content determination unit, the control device 51 changes the work space 1 to the environment that encourages the person 2 to rest. A second control is performed to control the ambient lighting 20, the task lighting 30, and the task sound source 40 so that

Therefore, the environment in which the person 2 works can be changed from an environment in which the person 2 is likely to concentrate on the work to an environment that encourages the person 2 to rest, for example, an environment for rest and relaxation at an appropriate timing, thereby improving the overall work. performance can be improved. The change from the environment in which the person 2 can easily concentrate on work to the environment in which the person 2 is encouraged to rest may be made instantaneously, or may be made gradually over a predetermined period of time.

Also, the control content determination unit may include a timer 54 that performs timekeeping. Then, based on the time information from the timer 54, the control device 51 may determine whether to create an environment that encourages the person 2 to concentrate or to create an environment that encourages the person 2 to rest.

As mentioned above, it is believed that the period during which person 2 can sustain concentration is on the order of 90 minutes. According to this configuration, when about 90 minutes have passed since the person 2 started working based on the time information from the timer 54, the environment in which the person 2 works is changed from an environment in which the person 2 can easily concentrate on the work. The environment can be changed to encourage Person 2 to rest. Therefore, environment changes can be properly executed, and the overall performance of work can be improved.

The control content determination unit may also include a drowsiness detection sensor 57 that acquires biological information of the person 2 or an action information acquisition sensor 59 that acquires action information of the person 2 . Then, based on at least one of the biological information and the behavioral information, the control device 51 makes the work space 1 an environment that encourages the person 2 to concentrate or an environment that encourages the person 2 to rest. You may decide whether to

According to this configuration, the timing of environmental change can be specified based on changes in the body of person 2, biological information such as age and gender, and behavioral information such as task content and daily schedule. It is easy to identify and can improve the overall performance of the work.

In addition, the biological information includes facial expression, pulse wave, body movement, degree of sympathetic nerve activity, degree of parasympathetic nerve activity, skin temperature, eye blink, eye movement, pupil fluctuation, electroencephalogram, saliva, head movement, and perspiration information. , respiratory variability, blood pressure, blood flow, and personal information.

In addition, the behavior information includes the schedule information of the person 2, the position information, the past task contents before performing this control, the current task contents when performing this control, the typing speed, the sleep time of the previous day and the past. , wake-up time on the previous day and past, number of mouse clicks, frequency of leaving seat, number of times leaving seat, number of conversations, conversation state (conversation content, speed during conversation, etc.), break time on the day, frequency of breaks on the day, medication It may include at least one of intake history (including information such as drug action), behavioral information such as eating and drinking history of the previous day, and behavioral information such as eating and drinking history of the current day.

Person 2's facial expression, pulse wave, body movement, sympathetic nerve activity, parasympathetic nerve activity, skin temperature, eye blink, eye movement, pupil fluctuation, brain wave, saliva, head movement, perspiration information, breathing fluctuation, blood pressure, Blood flow and personal information, schedule information of person 2, position information, task contents before performing this control, task contents during this control, typing speed, previous day / past sleep time / wake-up time, Number of mouse clicks, number of times you left your seat, number of conversations, conversation status (conversation content, speed during conversation, etc.), break time and frequency on the day, medication history (including information on drug effects), previous day/day Behavioral information such as the history of eating and drinking can accurately determine the timing of changing the environment, such as whether the person 2 is feeling sleepy or irritated, such as the degree of accumulation of fatigue. It can be used as an element that can be judged. Therefore, if such biological information is used, it is easy to accurately specify the timing of environmental changes, and overall work performance can be improved. The personal information is personal information of the person 2, such as the sex and age of the person 2. Moreover, the case where the facial expression of the person 2, the pulse wave of the person 2, the body movement of the person 2, and personal information are acquired by the camera 57a and the infrared sensor 57b has been described. However, such information may be acquired using an accelerometer, a pulse wave sensor, or the like installed on the person 2 or his clothes.

Also, the control device 51 may perform one or more of the following controls.

Specifically, the control device 51 determines that the amount of illumination light of the task illumination 30 during execution of the second control is greater than the amount of illumination light of the task illumination during execution of the first control. Task lighting 30 may be controlled to be smaller.

Further, the controller 51 determines that the illuminance difference between the ambient lighting 20 and the task lighting 30 during execution of the second control is the ambient lighting 20 and the task lighting during execution of the first control. The ambient lighting 20 and the task lighting 30 may be controlled so that the illuminance difference between the illumination lights 30 is smaller.

In addition, the control device 51 determines that the color temperature of the illumination light of the task lighting 30 during execution of the second control is higher than the color temperature of the illumination light of the task lighting 30 during execution of the first control. The task lighting 30 may be controlled so that the .DELTA.

Further, the control device 51 determines that the color difference between the ambient lighting 20 and the task lighting 30 during the execution of the second control is the ambient lighting 20 and the task lighting 30 during the execution of the first control. The ambient lighting 20 and the task lighting 30 may be controlled so that the color difference of the illumination light is smaller than .

In addition, the control device 51 determines that the spot diameter on the irradiation surface of the illumination light of the task lighting 30 during the second control is equal to that of the illumination light of the task lighting 30 during the first control. The task lighting 30 may be controlled so as to be larger than the spot diameter on the irradiation surface.

Further, the control device 51 determines that the degree of change in the illumination light of the task lighting 30 during execution of the second control is equal to the degree of change in the illumination light of the task lighting 30 during execution of the first control. The task lighting 30 may be controlled to be greater than the degree.

Further, the control device 51 may control the task lighting 30 so as to project an image onto the irradiation surface while the second control is being executed.

In addition, the control device 51 controls that the volume of the sound output by the task sound source 40 while the second control is being executed is higher than the volume of the sound output by the task sound source 40 while the first control is being executed. Alternatively, the task sound source 40 may be controlled so that .

In addition, the control device 51 causes the task sound source 40 to output a sound that enables masking noise, such as the sound of flowing water or the sound of a sandstorm on a television, while the first control is being executed. 40 may be controlled. In addition, the control device 51 controls the task sound source 40 to output sounds that make the person 2 feel rested or relaxed, such as bossa nova or jazz music, while the second control is being executed. good too.

By performing these controls, it is possible to effectively provide an environment that encourages the person 2 to rest in an environment in which the person 2 wants to concentrate, and in an environment that encourages the person 2 to rest, the person 2 can easily take a rest and feel rested. It is possible to effectively provide an environment in which a feeling of relaxation can be effectively felt.

1 work space, 2 people, 4 work desk, 5 work surface, 6 chair, 10 environmental control system, 20 ambient lighting, 30 task lighting, 40 task sound source, 50 personal computer, 51,151 control device, 52,152 control unit, 52a drowsiness determination unit 53 storage unit 54 timer 57 drowsiness detection sensor 57a camera 57b infrared sensor 58 task lighting on/off operation unit 59 action information acquisition sensor 152b irritation determination unit 157 drowsiness/emotion detection sensor , 158 occupancy sensor.

Claims (12)

at least one ambient lighting that illuminates a large area of a given space;
at least one task lighting for illuminating a viewing area of a workspace within the predetermined space;
at least one task sound source for outputting sound to the workspace;
a control content determination unit for specifying whether to create an environment that encourages one or more people in the work space to concentrate or to create an environment that encourages the people to rest;
a control device that performs dimming/toning control of the ambient lighting, dimming/toning control of the task lighting, and articulatory control of the task sound source;
with
When the control device determines that the work space should be set to the first environment that encourages the person to concentrate based on the signal from the control content determination unit, the control device changes the work space to the environment that encourages the person to concentrate. While performing a first control for controlling the ambient lighting, the task lighting, and the task sound source so as to perform a second control for encouraging the person to rest in the work space based on a signal from the control content determination unit performing a second control of controlling the ambient lighting, the task lighting, and the task sound source so as to make the work space an environment that encourages the person to rest, and
The illuminance difference between the ambient lighting and the task lighting while the second control is being executed is the ambient lighting and the task lighting while the first control is being executed. An environmental control system that is controlled to be less than the illumination difference . The control content determination unit includes a timer that performs timekeeping,
2. The environment of claim 1, wherein the control device determines whether to create an environment that encourages the person to concentrate or to create an environment that encourages the person to rest, based on time information from the timer. control system. The control content determination unit includes at least one of a biometric information acquisition sensor that acquires the biometric information of the person and a behavior information acquisition sensor that acquires behavior information of the person, and the control device controls the biometric information and the behavior. 3. The method of claim 1 or 2, wherein, based on at least one of the information, it is determined whether the work space should be an environment that encourages the person to concentrate or an environment that encourages the person to rest. environmental control system. The biological information includes facial expression, pulse wave, body movement, degree of sympathetic nerve activity, degree of parasympathetic nerve activity, skin temperature, eye blink, eye movement, pupillary fluctuation, electroencephalogram, saliva, head movement, perspiration information, 4. The environmental control system of claim 3, including at least one of respiratory variability, blood pressure, blood flow, and personal information. The activity information includes schedule information, location information, past task details, current task details, typing speed, sleeping hours on the previous day and past, wake-up times on the previous day and past, number of mouse clicks, The claim includes at least one of frequency of leaving seat, frequency of leaving seat, number of conversations, state of conversation, rest period of the day, frequency of rest of the day, medication intake history, behavioral information of the previous day, and behavioral information of the current day. 4. The environmental control system according to 3. The amount of illumination light of the task illumination during the execution of the second control is controlled so as to be smaller than the amount of illumination light of the task illumination during the execution of the first control. 6. An environmental control system according to any one of claims 1 to 5. The color temperature of the illumination light of the task illumination during the execution of the second control is lower than the color temperature of the illumination light of the task illumination during the execution of the first control. 7. An environmental control system according to any one of the preceding claims, controlled. The color difference between the ambient lighting and the task lighting while the second control is being executed is the color difference between the ambient lighting and the task lighting while the first control is being executed. 8. An environmental control system according to any one of the preceding claims, controlled to be smaller. The spot diameter on the irradiation surface of the illumination light of the task illumination during the execution of the second control is the spot diameter on the irradiation surface of the illumination light of the task illumination during the execution of the first control. 9. An environmental control system according to any one of the preceding claims, controlled to be greater than . The degree of change in the illumination light of the task illumination while the second control is being executed is greater than the degree of change in the illumination light of the task illumination while the first control is being executed. 10. The climate control system of any one of claims 1-9 , wherein the climate control system is controlled to: at least one ambient lighting that illuminates a large area of a given space;
at least one task lighting for illuminating a viewing area of a workspace within the predetermined space;
at least one task sound source for outputting sound to the workspace;
a control content determination unit for specifying whether to create an environment that encourages one or more people in the work space to concentrate or to create an environment that encourages the people to rest;
a control device that performs dimming/toning control of the ambient lighting, dimming/toning control of the task lighting, and articulatory control of the task sound source;
with
When the control device determines that the work space should be set to the first environment that encourages the person to concentrate based on the signal from the control content determination unit, the control device changes the work space to the environment that encourages the person to concentrate. While performing a first control for controlling the ambient lighting, the task lighting, and the task sound source so as to perform a second control for encouraging the person to rest in the work space based on a signal from the control content determination unit performing a second control of controlling the ambient lighting, the task lighting, and the task sound source so as to make the work space an environment that encourages the person to rest, and
The environment control system, wherein the control device controls the task lighting such that an image is projected onto an illumination surface while the second control is being performed. Control so that the volume of the sound output by the task sound source while the second control is being executed is lower than the volume of the sound output by the task sound source while the first control is being executed. An environmental control system according to any one of claims 1 to 11 , wherein

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