WO2021200981A1

WO2021200981A1 - Environment control system and environment control method

Info

Publication number: WO2021200981A1
Application number: PCT/JP2021/013593
Authority: WO
Inventors: 裕子鈴鹿
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2020-04-02
Filing date: 2021-03-30
Publication date: 2021-10-07
Also published as: JP7369985B2; JPWO2021200981A1; CN115297920A

Abstract

This environment control system comprises an acquisition unit (121a) that acquires bio-information which indicates the autonomic status of a subject, and a control unit (121b) that performs environmental control for controlling a plurality of devices which are installed in a space in which the subject stays such that each of a plurality of environmental parameters in the space is at a target setting that corresponds to that environmental parameter. The control unit (121b) selects a first environmental parameter from among the plurality of environmental parameters, and changes a first target setting corresponding to the selected first environmental parameter on the basis of the bio-information during the environmental control.

Description

Environmental control system and environmental control method

The present invention relates to an environmental control system and an environmental control method.

In recent years, interest in health has increased. As a technique for grasping a person's health condition, Patent Document 1 discloses a biological information measuring device capable of determining the condition of a person to be measured at an early stage by a simple method.

Japanese Unexamined Patent Publication No. 2016-52463

By the way, human autonomic nerves include two types of nerves, sympathetic nerves and parasympathetic nerves, which work in contrast, and the functions of human organs are maintained by the well-balanced work of these two types of nerves. Nowadays, an increasing number of people complain of physical disorders caused by imbalance of autonomic nerves due to irregular lifestyles and habits.

The present invention provides an environmental control system and an environmental control method capable of suppressing disturbance of the autonomic nerves of a subject.

In the environmental control system according to one aspect of the present invention, an acquisition unit that acquires biological information indicating the state of the autonomic nerves of the subject and a plurality of environmental parameters in the space in which the subject stays correspond to the environmental parameters. A control unit that controls an environment for controlling a plurality of devices installed in the space so as to set a target is provided, and the control unit selects a first environmental parameter from the plurality of environmental parameters, and the control unit selects the first environmental parameter from the plurality of environmental parameters. During environmental control, the first target setting corresponding to the selected first environmental parameter is changed based on the biometric information.

The environmental control method according to one aspect of the present invention acquires biological information indicating the state of the autonomic nerves of the subject, and sets a goal in which each of a plurality of environmental parameters in the space in which the subject stays corresponds to the environmental parameters. Environmental control is performed to control a plurality of devices installed in the space, the first environmental parameter is selected from the plurality of environmental parameters, and the selected first environmental parameter is supported during the environmental control. The first goal setting to be performed is changed based on the biometric information.

According to the present invention, an environmental control system and an environmental control method capable of suppressing the disturbance of the autonomic nerves of the subject are realized.

FIG. 1 is a diagram showing a configuration of an environmental control system according to an embodiment. FIG. 2 is a block diagram showing a functional configuration of the control device according to the embodiment. FIG. 3 is a diagram showing an example of a plurality of environmental parameters. FIG. 4 is a diagram showing an example of an emission color setting screen of the indirect lighting device. FIG. 5 is a flowchart of the operation of the environmental control system according to the embodiment. FIG. 6 is a diagram showing an example of a predetermined range of LF / HF values. FIG. 7 is a flowchart of a modification 1 of the operation of the environmental control system according to the embodiment. FIG. 8 is a flowchart of a modification 2 of the operation of the environmental control system according to the embodiment. FIG. 9 is a flowchart of a modification 3 of the operation of the environmental control system according to the embodiment. FIG. 10 is a diagram showing the relationship between the functions of autonomic nerves (sympathetic nerves and parasympathetic nerves) and changes in biological information.

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

Note that each figure is a schematic diagram and is not necessarily exactly illustrated. Further, in each figure, substantially the same configuration may be designated by the same reference numerals, and duplicate description may be omitted or simplified.

(Embodiment)
[Environmental control system configuration]
First, the configuration of the environmental control system according to the embodiment will be described. FIG. 1 is a diagram showing a configuration of an environmental control system according to an embodiment.

The environmental control system 10 shown in FIG. 1 controls a plurality of devices related to the environment in a closed space 300 such as a room to adjust the function of the autonomic nerves of the subject 200.

Autonomic nerves include two types of nerves, sympathetic nerves and parasympathetic nerves, which work in contrast, and the functions of human organs are maintained by the well-balanced work of these two types of nerves. By controlling a plurality of devices, the environmental control system 10 brings the environment in the space 300 closer to the environment suitable for the subject 200, and can suppress the disturbance of the autonomic nerves of the subject 200.

Specifically, the environment control system 10 includes a blower 20, an air conditioner 30, a lighting device 40, an external light adjusting device 50, an indirect lighting device 60, a speaker 80, a scent generator 90, and an environment. It includes a measuring device 100, a biological information measuring device 110, a control device 120, and a setting device 130. The blower 20, the air conditioner 30, the lighting device 40, the external light adjusting device 50, the indirect lighting device 60, the speaker 80, and the scent generating device 90 are examples of a plurality of devices.

The blower device 20 is a device that sends wind toward the target person 200. Specifically, the blower 20 is a blower having a relatively high directivity such as a circulator, but may be a fan or the like.

The air conditioner 30 is a device for adjusting the temperature of the space 300 in which the subject 200 is located. The air conditioner 30 can also adjust the humidity of the space 300. The air conditioner 30 brings the temperature and humidity of the space 300 closer to the temperature and humidity instructed by the control device 120.

The lighting device 40 is a device for direct lighting that illuminates the space 300 in which the subject 200 is located. The lighting device 40 is, for example, a ceiling light having a light emitting element such as an LED as a light source, but may be another lighting device such as a base light or a downlight. The lighting device 40 can be dimmed and toned by the control device 120.

The external light adjusting device 50 is a device that adjusts the amount of external light taken into the space 300 in which the subject 200 is located. The external light adjusting device 50 is, for example, an electronic blind realized by a light control film or the like, but may be an electric blind (electric shutter) or the like.

The indirect lighting device 60 is a device for indirect lighting arranged in the space 300 where the subject 200 is located. That is, the indirect lighting device 60 illuminates a structure such as a wall or ceiling that defines the space 300. The indirect lighting device 60 can change the emission color by having a plurality of light sources having different emission colors, for example. The indirect lighting device 60 may realize an arbitrary emission color by a combination of a light source and an optical filter. The emission color of the indirect lighting device 60 can be changed to, for example, one of red monochromatic light, green monochromatic light, and blue monochromatic light. The color of the light emitted by the indirect lighting device 60 is not particularly limited, and may be any color according to the user's preference, for example.

The speaker 80 is a device that is arranged in the space 300 where the target person 200 is located and outputs voice or music.

The scent generator 90 is a device that emits a scent, which is arranged in the space where the subject 200 is located. The scent generator 90 is, for example, an aroma diffuser, but may be another scent generator. The scent generator 90 may be a device integrated with the blower 20 and the speaker 80.

The environment measuring device 100 is a device that measures environmental information in the space 300 in which the target person 200 is located. The environment measuring device 100 is, for example, a temperature sensor that measures the temperature in the space 300, an illuminance sensor that measures the illuminance in the space 300, and the like.

The biometric information measuring device 110 is a device that measures the biometric information of the subject 200. The biological information measuring device 110 measures the body temperature, blood pressure, heart rate, pulse wave, sweating amount, pupil diameter, epidermis temperature, facial expression, etc. of the subject 200 as biological information. The biological information measuring device 110 includes VLF (Very Low Frequency), HF (High Frequency), LF (Low Frequency), LF / HF, inspiratory time, and expiratory time calculated from heartbeat, pulse wave, and respiratory fluctuation waveform. Pause time and the like may be measured, and these may be used as an index for grasping the state of the autonomic nerve. The biometric information measuring device 110 is, for example, a wearable type sensor (in other words, a contact type sensor) worn on the body of the subject 200, but may be a non-contact type sensor. Examples of the non-contact type sensor include a radio wave sensor capable of measuring heart rate, respiratory rate, pulse wave, etc., a camera capable of measuring pupil diameter or facial expression, and the like.

The control device 120 is a device that controls devices such as a blower 20, an air conditioner 30, a lighting device 40, an external light adjusting device 50, an indirect lighting device 60, a speaker 80, and a scent generating device 90. FIG. 2 is a block diagram showing a functional configuration of the control device 120.

As shown in FIG. 2, the control device 120 includes an information processing unit 121, a communication unit 122, a timekeeping unit 123, and a storage unit 124.

The information processing unit 121 controls the target device by causing the communication unit 122 to transmit a control signal. The information processing unit 121 is realized by, for example, a microcomputer, but may be realized by a processor. Specifically, the information processing unit 121 includes an acquisition unit 121a and a control unit 121b.

The communication unit 122 is a communication circuit (in other words, a communication module) for the control device 120 to communicate with the target device. The communication unit 122 transmits a control signal to a plurality of devices based on the control of the control unit 121b, for example. Further, the communication unit 122 receives the environmental information of the space 300 from the environment measuring device 100, receives the biometric information of the target person 200 from the biometric information measuring device 110, and receives the setting information from the setting device 130. The communication unit 122 performs wireless communication, for example, but may perform wired communication. The communication standard of the communication performed by the communication unit 122 is not particularly limited.

The timekeeping unit 123 measures the current time. The timekeeping unit 123 is realized by, for example, a real-time clock.

The storage unit 124 is a storage device that stores a control program or the like executed by the control unit 121b to control the device. The storage unit 124 is realized by, for example, a semiconductor memory.

The setting device 130 is a user interface device that accepts operations (for example, operations for performing initial settings) of a user such as the target person 200, and is an example of a reception unit. The content of the setting received by the setting device 130 is transmitted to the control device 120 as setting information. The setting device 130 is, for example, a mobile terminal such as a smartphone or a tablet terminal, but may be an operation panel installed on a wall or the like. The setting device 130 may be realized as a part of another device. For example, the setting device 130 may be realized as a reception unit included in the control device 120. Specifically, the reception unit is realized by a touch panel, a hardware button, or the like.

[Initial setting]
In the environmental control system 10, the control device 120 (specifically, the control unit 121b) sets a target (target of the environmental parameter) corresponding to each of the plurality of environmental parameters (for example, temperature) in the space 300. For example, the environment is controlled to adjust to the set temperature. FIG. 3 is a diagram showing an example of a plurality of environmental parameters. The plurality of environmental parameters include, for example, the temperature (room temperature) of the space 300, the wind speed of the blower 20, the illuminance in the space 300, and the illuminance change in the space 300. The color temperature of white light emitted by the lighting device 40, the emission color of the indirect lighting device 60, the scent emitted by the scent generator 90 (type of scent), the sound output from the speaker 80 (volume, type of sound source), and the like. be.

These plurality of environmental parameters control the above-mentioned plurality of devices (blower 20, air conditioner 30, lighting device 40, external light adjusting device 50, indirect lighting device 60, speaker 80, and fragrance generator 90). It can be adjusted by. In FIG. 3, for each of the plurality of environmental parameters, the corresponding equipment for adjusting the environmental parameters is shown. In environmental control, the environmental measuring device 100 is appropriately used to grasp the current state of the environmental parameters.

Here, at the beginning of the environmental control, the initial setting (also described as the initial target setting) is used as the target setting, but in the environmental control system 10, the initial setting method is different for each environmental parameter. According to the findings of the inventors, since multiple environmental parameters have different degrees of influence on human autonomic nerves, the initial setting method is changed in consideration of the degree of influence of each environmental parameter on human autonomic nerves. Has been done.

For example, the three environmental parameters of the illuminance in the space 300, the illuminance change in the space 300, and the color temperature of the white light emitted by the lighting device 40 are less dependent on humans (individual differences). Therefore, the initial settings of these three environmental parameters are empirically or experimentally determined by the designer of the environmental control system 10 or the like, and are stored in the storage unit 124 in advance at the time of shipment of the environmental control system 10. Alternatively, these three environmental parameters are automatically downloaded from the cloud at the very beginning of the initial setting of the environmental control system 10. In other words, the default settings are set by default. In the following, these three environmental parameters are also described as the first type of environmental parameters. That is, the first type of parameter includes an environmental parameter that stimulates the visual sense of the subject 200. The initial setting of the environment parameter of the first type can be finely adjusted by the target person 200. Specifically, the setting device 130 makes fine adjustments by accepting the operation of the target person 200 (that is, manually).

Further, the two environmental parameters of the emission color of the indirect lighting device 60 and the sound output from the speaker 80 are highly dependent on the person (individual difference), but largely depend on the preference of the person. By having them select it, screening is possible before actually controlling the environment. Therefore, the initial settings of these two environmental parameters are manually set by the subject 200 before the environmental control is performed. Specifically, when the setting device 130 receives the operation of the target person 200, it is stored in the storage unit 124. In the following, these three environmental parameters are also described as the second type of environmental parameters. That is, the second type of parameter includes at least one of a parameter that stimulates the color vision of the subject 200, a parameter that stimulates the sense of smell of the subject 200, and a parameter that stimulates the hearing of the subject 200.

The three environmental parameters of the temperature of the space 300, the scent emitted by the scent generator 90, and the wind speed of the blower 20 are highly dependent on humans (individual differences), and the environment is actually controlled. Without it, it is difficult to determine a target setting suitable for the target person 200. Therefore, the initial settings of these three environmental parameters are determined based on the results of actual environmental control (or experimental environmental control). In the following, these two environmental parameters are also described as the third type of environmental parameters. That is, the third type of environmental parameter includes at least one of the environmental parameter that stimulates the warm sensation of the subject 200 and the environmental parameter that stimulates the tactile sensation of the subject 200. Before performing environmental control (or experimental environmental control), the provisional initial setting of the third type of environmental parameter is stored by the setting device 130 accepting the operation of the target person 200 (that is, manually). It is stored in the unit 124.

In this way, if the initial setting method is changed in consideration of the degree of influence of each environmental parameter on the human autonomic nerve, the environmental control system 10 will make the space 300 an environment suitable for the target person 200. It is possible to shorten the time required (reduce the number of times the target setting is changed, which will be described later).

Note that at least one initial setting may be set for each of a plurality of environment parameters. However, in the embodiment, for each of the plurality of environmental parameters, the first initial setting suitable for making the sympathetic nerve function superior to the parasympathetic nerve function, and the parasympathetic nerve function as the sympathetic nerve function. Two initial settings are defined, a second initial setting that is suitable for giving an advantage over. For example, as the emission color setting screen of the indirect lighting device 60, the setting screen of FIG. 4 is exemplified. FIG. 4 is a diagram showing an example of an emission color setting screen of the indirect lighting device 60. In FIG. 4, the emission color set when one wants to concentrate corresponds to the first initial setting, and the emission color set when one wants to relax corresponds to the second initial setting.

When setting the emission color of the indirect lighting device 60, the indirect lighting device 60 may actually emit light in the selected emission color. As a result, the subject 200 can set the emission color in consideration of the actual situation.

Further, in the above description, it has been explained that only the initial settings of the first type environment parameters and the provisional initial settings of the third type environment parameters are stored in the storage unit 124 in advance. The initial settings of the second type of environment parameters may also be stored in advance in the storage unit 124 for the purpose of. Further, the environmental control system 10 may be configured so that the target person 200 cannot start using the environment control system 10 unless a user such as the target person 200 manually sets the initial settings of the second type of environmental parameters.

[motion]
Next, the operation of the environmental control system 10 after the initial settings have been made as described above will be described. FIG. 5 is a flowchart of the operation of the environmental control system 10.

First, the acquisition unit 121a acquires the initial settings stored in the storage unit 124, which are the initial settings for each of the plurality of environment parameters (S11). For example, when the acquisition unit 121a determines that the current time belongs to the daytime based on the current time measured by the timekeeping unit 123, the acquisition unit 121a acquires the first initial setting and determines that the current time belongs to the nighttime. If it is determined, the second initial setting is acquired.

Next, the control unit 121b selects the environment parameter having the highest priority among the plurality of environment parameters according to a predetermined priority (S12). Information indicating the priority order is stored in the storage unit 124 in advance. Priorities are set empirically or experimentally.

Next, the control unit 121b executes environmental control (S13). Specifically, the control unit 121b is installed in the space 300 so that each of the plurality of environmental parameters in the space in which the target person 200 stays becomes the acquired initial setting (that is, the initial target setting). Control the equipment. The control of the plurality of devices is performed by the control unit 121b causing the communication unit 122 to transmit control signals to each of the plurality of devices. In environmental control, the environmental measuring device 100 is appropriately used to grasp the current state of the environmental parameters.

Next, the acquisition unit 121a acquires the LF / HF of the subject 200 from the biometric information measuring device 110 during environmental control (for example, after a plurality of environmental parameters reach the initial settings) (S14). LF / HF is a parameter determined by time-series data of heart rate variability and is an example of biological information indicating the state of autonomic nerves. LF / HF decreases in a state in which the parasympathetic nerve function is dominant over the sympathetic nerve function (relaxed state), and increases in a state in which the sympathetic nerve function is dominant over the parasympathetic nerve function (stress state). ..

Next, the control unit 121b determines whether or not the acquired LF / HF value is within a predetermined range (S15). FIG. 6 is a diagram showing an example of a predetermined range of LF / HF values. The predetermined range is, in other words, a range indicating an appropriate autonomic nervous state. The predetermined range indicates, for example, the range of LF / HF of a healthy person (appropriate range of LF / HF) and is determined empirically or experimentally. As shown in FIG. 6, the predetermined range changes with time, for example. The control unit 121b can specify a predetermined range at the present time based on the current time measured by the time measuring unit 123. Information indicating a predetermined range is stored in advance in the storage unit 124.

When the control unit 121b determines that the acquired LF / HF value is within the predetermined range (Yes in S15), the control unit 121b continues the environmental control while maintaining the initial setting (S13). On the other hand, when the control unit 121b determines that the acquired LF / HF value is out of the predetermined range (No in S15), the control unit 121b determines whether or not the number of times the target setting has been changed has reached the upper limit. (S16). The upper limit is, for example, 4 times. The upper limit number of times is predetermined, and the information indicating the upper limit number of times is stored in the storage unit 124 in advance.

When the control unit 121b determines that the number of times the target setting has been changed has not reached the upper limit (No in S16), the control unit 121b sets the target setting of the environmental parameter selected in step S12 to the current target setting (initial setting for the first time). To change to another goal setting (S17). The change of the target setting is performed based on the value of LF / HF, considering whether the value of LF / HF is larger or smaller than the predetermined range. The target settings for environment parameters other than the selected environment parameters are not changed.

For example, if the selected environmental parameter is temperature, the initial setting is 25 ° C., and the LF / HF value is smaller than the predetermined range ((a) in FIG. 6), the temperature is lowered. The LF / HF value can be increased (approached to a predetermined range). Therefore, the control unit 121b changes the temperature target setting (target value) from the initial setting (25 ° C.) to 25-α (α> 0) ° C. When the LF / HF value is larger than the predetermined range ((b) in FIG. 6), the control unit 121b sets the temperature target setting from the initial setting (25 ° C.) to 25 + α (α> 0). ) Change to ℃. When the environmental parameter is the emission color of the indirect lighting device 60, the scent emitted by the scent generator 90, or the music output by the speaker 80, in step S17, the emission color of the indirect lighting device 60 is changed and the scent is generated. The type of scent emitted by the device 90 may be changed, or the type of music output by the speaker 80 may be changed. That is, it is not essential that the target value is changed as the target setting is changed.

The processing of step S13, step S14, and step S17 is repeated until the value of LF / HF falls within a predetermined range or the number of times the target setting is changed reaches the upper limit number of times. That is, unless the LF / HF value is within a predetermined range, only the temperature target setting among the plurality of target settings corresponding to the plurality of environmental parameters is 25 ° C (initial setting) and 25-α ° C (first change). (After), 25-2α ° C (after the second change), and so on, while the environmental control is continued.

Then, if the LF / HF value does not reach within the predetermined range even if the temperature target setting is changed by the upper limit number of times (Yes in S16), the environmental parameter for which the target setting is changed is changed from temperature to another. It is changed to an environment parameter (S18). In other words, the control unit 121b selects another environmental parameter. Changes in environmental parameters (in other words, selection) are made according to the priorities described above. Then, the target setting of the changed environment parameter is changed from the initial target setting (S17). When the environment parameter is changed, the number of times the target setting is changed is reset to 0.

After that, the processes of step S13, step S14, and step S17 are repeated until the LF / HF value falls within a predetermined range or the number of times the target setting is changed reaches the upper limit. Immediately before the environment parameter is changed, a process of returning the target setting of the environment parameter before the change to the initial setting may be performed.

As described above, the environmental control system 10 selects the first environmental parameter from a plurality of environmental parameters, and during the environmental control, sets the first target corresponding to the selected first environmental parameter by LF / HF (living body). Change based on information). Such an environmental control system 10 can suppress the disturbance of the autonomic nerves of the subject 200. Further, the environmental control system 10 can specify the environmental parameters effective for adjusting the autonomic nerves of the subject 200 by changing the target setting of the environmental parameters one by one.

Further, when the environmental control system 10 determines that the LF / HF value does not fall within the predetermined range even after changing the first target setting a plurality of times, the second environmental parameter is different from the first environmental parameter among the plurality of environmental parameters. Select an environmental parameter and change the second goal setting corresponding to the selected second environmental parameter based on LF / HF. The selection of environmental parameters is done according to a predetermined priority. In such an environmental control system 10, when it is considered that the change of the target setting of the first environmental parameter is not effective for the adjustment of the autonomic nerves of the subject 200, the subject is changed by changing the target setting of the second environmental parameter. It is possible to adjust 200 autonomic nerves.

In step S17, it was determined whether or not the number of times the target setting was changed reached the upper limit, but if the target setting is indicated by a value, whether the value reached the upper limit (or lower limit). Whether or not it may be determined.

[Modification example 1 of operation]
The target person 200 can also manually change the target setting of the environment parameter by operating the setting device 130. Hereinafter, an operation example (variation example 1 of the operation) when the target setting is manually changed while the operation of the flowchart of FIG. 5 is being performed will be described. FIG. 7 is a flowchart of a modified example 1 of the operation of the environmental control system 10.

The control unit 121b determines whether or not the target setting has been manually changed during the operation of the flowchart of FIG. 5 (S21). Specifically, the control unit 121b determines whether or not the setting information transmitted by the setting device 130 and indicating that the target setting has been manually changed has been received by the communication unit 122. In other words, the control unit 121b determines whether or not the target setting designation has been accepted by the setting device 130.

When the control unit 121b determines that the target setting has been manually changed during the operation of the flowchart of FIG. 5 (Yes in S21), the control unit 121b sets the manually changed target setting (in other words, the specified target setting) as the initial target. As a setting, the operation of the flowchart of FIG. 5 is performed (S22). That is, after the initial target setting is changed from the one acquired in step S11 of FIG. 5 to the one manually set, the operation of the flowchart of FIG. 5 is performed. For example, when the target setting of the environment parameter being changed is manually changed, the number of changes is reset to 0, and then the processes of steps S13, S14, and S17 have the LF / HF value within a predetermined range. It is repeated until it becomes within or the number of times the target setting is changed reaches the upper limit.

On the other hand, if it is not determined that the target setting has been manually changed during the operation of the flowchart of FIG. 5 (No in S21), the operation of the flowchart of FIG. 5 is continued as it is.

As described above, when the setting device 130 accepts the designation of the target setting, the environmental control system 10 sets the designated target setting as the initial target setting. As a result, the environmental control system 10 can perform environmental control based on the intention of the target person 200.

[Modification example 2 of operation]
The priority of the plurality of environmental parameters may be changed by the control unit 121b based on the result of the environmental control. FIG. 8 is a flowchart of the second modification of the operation of the environmental control system 10.

In parallel with the operation of the flowchart of FIG. 5, the control unit 121b calculates the amount of change in the LF / HF value according to the change in the target setting when the target setting is changed, and calculates the environmental parameter. The history information in which the change amount of the target setting of the environment parameter and the fluctuation amount of the LF / HF value are associated with each other is stored in the storage unit 124 (S31).

Next, the control unit 121b determines whether or not a predetermined period has elapsed since the operation of the flowchart of FIG. 5 was started (S32). Specifically, the control unit 121b can determine whether or not a predetermined period has elapsed since the operation of the flowchart of FIG. 5 was started, based on the current time measured by the timekeeping unit 123. Until the predetermined period elapses, the storage (accumulation) of the history information is continued (No in S32). The predetermined period is, for example, 20 days, but is not particularly limited as long as the history information can be sufficiently accumulated.

When the control unit 121b determines that a predetermined period has elapsed since the operation of the flowchart of FIG. 5 was started (Yes in S32), thereafter, the priority order of a plurality of environmental parameters is determined based on the history information (Yes). S33). As described above, the history information includes a fluctuation amount of the LF / HF value according to the change of the target setting when the target setting is changed. As the amount of fluctuation, an average value, a maximum value, a minimum value, or the like during a certain period may be used. That is, the control unit 121b can calculate how much the change in the environmental parameters affects the LF / HF of the target person 200, for example, by statistically analyzing the history information.

For example, when the value of LF / HF is smaller than a predetermined range during the operation of the flowchart of FIG. 5, the control unit 121b refers to the history information, and which environment parameter should be changed to LF. It is possible to specify whether the value of / HF can be increased within a predetermined range. Therefore, the control unit 121b sets the higher priority as the environmental parameter estimated to raise the LF / HF value within a predetermined range quickly based on the history information.

Similarly, for example, when the value of LF / HF is larger than a predetermined range during the operation of the flowchart of FIG. 5, the control unit 121b can change which environment parameter by referring to the history information. It is possible to specify whether the value of LF / HF can be reduced within a predetermined range. Therefore, in this case, the control unit 121b sets the environmental parameter, which is estimated to reduce the LF / HF value within a predetermined range quickly based on the history information, with a higher priority.

As described above, the environmental control system 10 stores historical information in which each of the plurality of environmental parameters is associated with the amount of change in the LF / HF value when the target setting of the environmental parameter is changed. It is stored in and the priority is determined based on the history information. Such an environmental control system 10 can realize an environment suitable for the target person 200 in a relatively short period of time.

[Modification example 3 of operation]
The control unit 121b may determine the environmental parameters to be changed in the target setting by using the machine learning model. FIG. 9 is a flowchart of a modification 3 of the operation of the environmental control system 10.

The control unit 121b causes the machine learning model to learn the data in parallel with the operation of the flowchart of FIG. 5 (S41). For example, the machine learning model includes identification information of environmental parameters to be targeted for goal setting, LF / HF values before changing the goal setting, a predetermined range at this time (that is, an upper limit value and a lower limit value of the predetermined range). Learn the data associated with the time taken to bring the LF / HF value within the predetermined range (number of changes in target setting, etc.). The time taken to bring the LF / HF value within a predetermined range (number of changes in target setting, etc.) is used as a reward (score).

In such a machine learning model, for example, the current LF / HF value and the predetermined range can be used as input information, and the LF / HF value can be set within the predetermined range at the shortest in the situation indicated by the input information. Outputs the identification information of the estimated environment parameter (environment parameter that minimizes the score).

Next, the control unit 121b determines whether or not a predetermined period has elapsed since the operation of the flowchart of FIG. 5 was started (S42). Until the predetermined period elapses, the learning of the machine learning model data is continued (No in S42). The predetermined period is, for example, 20 days, but is not particularly limited as long as a sufficient amount of data can be obtained.

When the control unit 121b determines that a predetermined period has elapsed since the operation of the flowchart of FIG. 5 was started (Yes in S42), after that, the machine learning model is used to set a target from a plurality of environmental parameters. Select the environment parameter to be changed (S43).

As described above, the environmental control system 10 selects an environmental parameter from a plurality of environmental parameters using a machine learning model. The machine learning model uses the LF / HF value and the predetermined range as input information, and identifies the environmental parameters that are estimated to be able to keep the LF / HF value within the predetermined range at the shortest in the situation indicated by the input information. Output information. Such an environmental control system 10 can realize an environment suitable for the target person 200 in a relatively short period of time.

[Transformation example of biological information]
In the above embodiment, the environmental control system 10 uses LF / HF as an index indicating the state of the autonomic nerves of the subject 200, but other biological information may be used as an index. FIG. 10 is a diagram showing the relationship between the functions of autonomic nerves (sympathetic nerves and parasympathetic nerves) and changes in biological information. As shown in FIG. 10, biological information such as body temperature, blood pressure, heart rate, pulse rate, respiratory rate, sweating amount, pupil diameter, epidermis temperature, and facial expression of the subject 200 is the function of the sympathetic nerve and the parasympathetic nerve. It is related to the work of. That is, these biometric information can be used as an index indicating the state of the autonomic nerves of the subject 200. In the above embodiment. LF / HF may be appropriately read as any of these biometric information.

[supplement]
Hereinafter, as described above, when the temperature around the subject 200 decreases, the function of the subject's sympathetic nerve becomes superior to the function of the parasympathetic nerve, and when the temperature around the subject 200 rises, the function of the subject's parasympathetic nerve becomes superior. The work of is superior to the work of the sympathetic nerve.

To supplement other environmental parameters, for example, regarding the wind speed of the blower 20, the sympathetic nerve function of the subject becomes superior to the parasympathetic nerve function when the wind speed becomes stronger, and the parasympathetic nerve function of the subject becomes weaker when the wind speed becomes weaker. The work is superior to the work of the sympathetic nerve.

Regarding the illuminance of the space 300, the function of the sympathetic nerve of the subject becomes superior to the function of the parasympathetic nerve when the illuminance becomes high, and the function of the parasympathetic nerve of the subject becomes superior to the function of the sympathetic nerve when the illuminance becomes low. become.

Regarding the change in illuminance of the space 300, when the change in illuminance becomes sudden, the function of the sympathetic nerve of the subject becomes superior to the function of the parasympathetic nerve, and when the change in illuminance becomes slow, the function of the parasympathetic nerve of the subject becomes more than the function of the sympathetic nerve. Will also be superior.

Regarding the color temperature of the lighting device 40, when the color temperature is high, the function of the sympathetic nerve of the subject becomes superior to the function of the parasympathetic nerve, and when the color temperature is low, the function of the parasympathetic nerve of the subject is superior to the function of the sympathetic nerve. Will also be superior.

Note that these tendencies are common. There are individual differences in the subject 200, and depending on the subject 200, the function of the autonomic nerve may not be adjusted in this way.

[Effects, etc.]
As described above, in the environmental control system 10, the acquisition unit 121a for acquiring the biological information indicating the state of the autonomic nerves of the subject 200 and the plurality of environmental parameters in the space 300 in which the subject 200 stays are the environmental parameters. It is provided with a control unit 121b that controls the environment for controlling a plurality of devices installed in the space 300 so as to set a target corresponding to the above. The control unit 121b selects a first environmental parameter from a plurality of environmental parameters, and changes the first target setting corresponding to the selected first environmental parameter based on the biological information during the environmental control.

Such an environmental control system 10 can suppress the disturbance of the autonomic nerves of the subject 200. Further, the environmental control system 10 can specify the environmental parameters effective for adjusting the autonomic nerves of the subject 200 by changing the target setting of the environmental parameters one by one.

Further, for example, when the control unit 121b determines that the value of the biometric information is out of the predetermined range, the control unit 121b changes the first target setting based on the biometric information, and determines that the value of the biometric information is within the predetermined range. If determined, the current primary goal setting is maintained.

Such an environmental control system 10 can change the target setting of the environmental parameter only when the space 300 is not an environment suitable for the subject 200 (when the state of the autonomic nerve of the subject 200 is not a predetermined state). can. Therefore, the amount of information processing when changing the target setting is reduced.

Further, for example, the control unit 121b changes the first target setting a plurality of times until the value of the biometric information falls within a predetermined range.

In such an environmental control system 10, the space 300 can be brought closer to the environment suitable for the target person 200 by gradually changing the target setting of the environmental parameters in a plurality of times.

Further, for example, when the control unit 121b determines that the value of the biological information does not fall within the predetermined range even after the first target setting is changed a plurality of times, the control unit 121b is different from the first environmental parameter among the plurality of environmental parameters. (Ii) Select an environmental parameter and change the second goal setting corresponding to the selected second environmental parameter based on biometric information.

In such an environmental control system 10, when it is considered that the change of the target setting of the first environmental parameter is not effective for the adjustment of the autonomic nerves of the subject 200, the subject is changed by changing the target setting of the second environmental parameter. It is possible to adjust 200 autonomic nerves.

Further, for example, the control unit 121b selects the first environmental parameter from a plurality of environmental parameters using a machine learning model. The machine learning model uses the value of biometric information and a predetermined range as input information, and uses the identification information of environmental parameters that are estimated to be able to bring the value of biometric information within the predetermined range at the shortest in the situation indicated by the input information. Output.

Such an environmental control system 10 can bring the space 300 closer to the environment suitable for the target person 200 in a relatively short time.

Also, for example, priorities are set for multiple environmental parameters. The control unit 121b selects the first environmental parameter from a plurality of environmental parameters based on the priority order.

In such an environmental control system 10, the space 300 can be brought closer to the environment suitable for the target person 200 in a relatively short time by appropriately determining the priority.

Further, for example, the control unit 121b stores each of the plurality of environmental parameters in the storage unit 124 as history information associated with the amount of change in the value of the biological information when the target setting of the environmental parameter is changed. Prioritize based on historical information.

In such an environmental control system 10, the space 300 can be brought closer to the environment suitable for the target person 200 in a relatively short time by appropriately determining the priority based on the history information.

Further, for example, the control unit 121b changes the first target setting from the initial target setting based on the biological information.

In such an environmental control system 10, the space 300 can be brought closer to the environment suitable for the target person 200 by changing the first target setting from the initial target setting based on the biological information.

Further, for example, the environmental control system 10 further includes a setting device 130 that accepts the designation of the first target setting of the target person 200. The control unit 121b sets the designated first target setting as the initial target setting. The setting device 130 is an example of a reception unit.

Such an environmental control system 10 can perform environmental control based on the intention of the target person 200.

Further, for example, for a plurality of environmental parameters, the initial target setting is the first type of environmental parameter stored in advance in the storage unit 124 included in the environmental control system 10 before the environmental control is performed, and the initial target setting. However, the second type of environmental parameters determined by the subject 200 before the environmental control is performed, and the third type of environmental parameters whose initial target setting is determined based on the result of the environmental control are included.

By changing the initial target setting method for each type of environmental parameter, the environmental control system 10 reduces the number of times the target setting is changed until the space 300 becomes an environment suitable for the target person 200. be able to. That is, the environmental control system 10 can make the space 300 into an environment suitable for the target person 200 in a relatively short time.

Further, for example, the first type of environmental parameters include environmental parameters that stimulate the visual sense of the subject 200.

Such an environmental control system 10 makes the space 300 an environment suitable for the target person 200 by storing the initial target setting of the environmental parameters that stimulate the visual sense of the target person 200 in the storage unit 124 in advance. It is possible to shorten the time required for the operation (reduce the number of times the target setting is changed).

Further, for example, the second type of environmental parameter includes at least one of an environmental parameter that stimulates the color vision of the subject 200 and an environmental parameter that stimulates the hearing of the subject 200.

In such an environmental control system 10, at least one of the initial target setting of the environmental parameter that stimulates the color vision of the subject 200 and the initial target setting of the environmental parameter that stimulates the hearing of the subject 200 is set by the subject. By doing so, it is possible to shorten the time required to make the space 300 an environment suitable for the target person 200.

Further, for example, the third type of environmental parameters include at least an environmental parameter that stimulates the sense of temperature of the subject 200, an environmental parameter that stimulates the sense of smell of the subject 200, and an environmental parameter that stimulates the sense of touch of the subject 200. One is included.

Such an environmental control system 10 sets an initial target of an environmental parameter that stimulates the sense of temperature of the subject 200, sets an initial target of an environmental parameter that stimulates the sense of smell of the subject 200, and sets a tactile sense of the subject 200. By setting at least one of the initial target settings of the stimulating environmental parameters based on the result of the environmental control, it is possible to shorten the time required to make the space 300 an environment suitable for the subject 200.

Further, an environmental control method executed by a computer such as the environmental control system 10 acquires biological information indicating the state of the autonomic nerves of the subject 200, and each of a plurality of environmental parameters in the space 300 in which the subject 200 stays is the environment. Environmental control is performed to control a plurality of devices installed in the space 300 so as to set a target corresponding to the parameter, the first environmental parameter is selected from the plurality of environmental parameters, and the selected first environmental parameter is selected during the environmental control. Change the first goal setting corresponding to the environmental parameters based on biometric information.

Such an environmental control method can suppress the disturbance of the autonomic nerves of the subject 200. Further, in the environmental control method, by changing the target setting of the environmental parameters one by one, it is possible to specify the environmental parameters that are effective for adjusting the autonomic nerves of the subject 200.

(Other embodiments)
Although the embodiments have been described above, the present invention is not limited to the above embodiments.

For example, in the above embodiment, another processing unit may execute the processing executed by the specific processing unit. Further, the order of the plurality of processes may be changed, or the plurality of processes may be executed in parallel.

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

Further, each component may be realized by hardware. Each component may be a circuit (or integrated circuit). These circuits may form one circuit as a whole, or may be separate circuits from each other. Further, each of these circuits may be a general-purpose circuit or a dedicated circuit.

Further, general or specific aspects of the present invention may be realized by a recording medium such as a system, an apparatus, a method, an integrated circuit, a computer program, or a computer-readable CD-ROM. Further, it may be realized by any combination of a system, an apparatus, a method, an integrated circuit, a computer program and a recording medium.

For example, the present invention may be realized as an environmental control method, or as a program for causing a computer to execute the environmental control method, or a computer-readable non-temporary program in which such a program is recorded. It may be realized as a standard recording medium.

Further, the present invention may be realized as a control device of the above-described embodiment, or may be realized as a program executed by the computer for operating the computer as such a control device. Further, the present invention may be realized as a computer-readable non-temporary recording medium in which such a program is recorded.

Also, in the above embodiment, the environmental control system is realized by a plurality of devices. It may be realized as a single device. When the environmental control system is realized by a plurality of devices, the components included in the environmental control system described in the above embodiment may be distributed to the plurality of devices in any way.

In addition, it is realized by applying various modifications to each embodiment that can be conceived by those skilled in the art, or by arbitrarily combining the components and functions of each embodiment within the range not deviating from the gist of the present invention. Also included in the present invention.

10 Environmental control system 20 Blower (equipment)
30 Air conditioner (equipment)
40 Lighting equipment (equipment)
50 External light adjustment device (equipment)
60 Indirect lighting device (equipment)
80 Speaker (equipment)
90 Fragrance generator (equipment)

121a Acquisition unit

121b Control unit 124 Storage unit 130 Setting device (reception unit)
200 Target audience 300 Space

Claims

An acquisition unit that acquires biometric information indicating the state of the subject's autonomic nerves,
It is provided with a control unit that controls an environment for controlling a plurality of devices installed in the space so that each of the plurality of environmental parameters in the space in which the target person stays is a target setting corresponding to the environmental parameters.
The control unit selects a first environmental parameter from the plurality of environmental parameters, and changes the first target setting corresponding to the selected first environmental parameter during the environmental control based on the biological information. Environmental control system.
The control unit
When it is determined that the value of the biometric information is out of the predetermined range, the first target setting is changed based on the biometric information.
The environmental control system according to claim 1, wherein when it is determined that the value of the biological information is within the predetermined range, the current first target setting is maintained.
The environmental control system according to claim 2, wherein the control unit changes the first target setting a plurality of times until the value of the biometric information falls within a predetermined range.
When the control unit determines that the value of the biometric information does not fall within the predetermined range even after changing the first target setting a plurality of times, the control unit differs from the first environmental parameter among the plurality of environmental parameters. The environmental control system according to claim 3, wherein a second environmental parameter is selected and the second target setting corresponding to the selected second environmental parameter is changed based on the biological information.
The control unit selects the first environmental parameter from the plurality of environmental parameters using a machine learning model.
In the machine learning model, the value of the biometric information and the predetermined range are used as input information, and it is estimated that the value of the biometric information can be within the predetermined range at the shortest in the situation indicated by the input information. The environmental control system according to any one of claims 2 to 4, which outputs parameter identification information.
Priorities are set for the plurality of environmental parameters.
The environmental control system according to any one of claims 1 to 4, wherein the control unit selects the first environmental parameter from the plurality of environmental parameters based on the priority order.
The control unit
Each of the plurality of environmental parameters is stored in the storage unit as historical information associated with the amount of change in the value of the biological information when the target setting of the environmental parameter is changed.
The environmental control system according to claim 6, wherein the priority is determined based on the history information.
The environmental control system according to any one of claims 1 to 7, wherein the control unit changes the first target setting from the initial target setting based on the biological information.
Further, it is provided with a reception unit that accepts the designation of the first goal setting of the target person.
The environmental control system according to claim 8, wherein the control unit sets the designated first target setting as the initial target setting.
The plurality of environmental parameters include
The initial target setting is the first type of environmental parameters stored in advance in the storage unit of the environmental control system before the environmental control is performed.
The initial goal setting is the second type of environmental parameters determined by the subject before the environmental control is performed.
The environmental control system according to any one of claims 1 to 9, wherein the initial target setting includes a third type of environmental parameter determined based on the result of the environmental control.
The environmental control system according to claim 10, wherein the environmental parameter of the first type includes an environmental parameter that stimulates the visual sense of the subject.
The environmental control system according to claim 10 or 11, wherein the second type of environmental parameter includes at least one of an environmental parameter that stimulates the subject's color vision and an environmental parameter that stimulates the subject's hearing. ..
The third type of environmental parameter includes at least one of the environmental parameter that stimulates the warm sense of the subject, the environmental parameter that stimulates the sense of smell of the subject, and the environmental parameter that stimulates the sense of touch of the subject. The environmental control system according to any one of claims 10 to 12.
Acquire biometric information indicating the state of the autonomic nerves of the subject,
Environmental control is performed to control a plurality of devices installed in the space so that each of the plurality of environmental parameters in the space in which the target person stays is a target setting corresponding to the environmental parameters.
Select the first environmental parameter from the plurality of environmental parameters, and select
An environmental control method for changing a first target setting corresponding to a selected first environmental parameter based on the biological information during the environmental control.