JP6917559B2 - Lighting control system and resident management system - Google Patents

Description

The present disclosure relates to a lighting control system and a resident management system having a lighting control system.

Humans have been active in the bright sunlight for a long time, and there is a life rhythm in which the arousal level is high when it is bright and the awakening level is low when it is dark. May cause depression and sleeplessness at night. Therefore, for example, there is known phototherapy in which light having a higher illuminance than the illuminance of normal lighting is irradiated for a predetermined time during the day to adjust the biological rhythm. Light treatment is known to be effective for patients with seasonal environmental disorders that occur in winter when there is little sunlight, elderly people with weakened ability to maintain biological rhythms, patients with life rhythm disorders, elementary school students with depression, etc. ..

Patent Document 1 detects personal lighting means having an illuminance adjusting means for adjusting the illuminance level and personal physiological information as a lighting control system for illuminating a part of the day with high illuminance. A configuration having a biological sensor and a determination means for determining an individual's arousal level is disclosed. Here, the arousal level of the individual is determined from the physiological information detected by the biological sensor, and when the determined arousal level is low, the illuminance level is increased in order to promote arousal.

Japanese Unexamined Patent Publication No. 2009-266482

For indoor lighting of facilities, etc., use a brightness sensor to avoid unnecessary irradiation by lighting control that reduces the output of ceiling lighting if the amount of incident light is large when outside light is incident from windows in the daytime. Energy can be saved. It is conceivable to increase the illuminance of the room lighting using this brightness sensor to perform light treatment, but the control by the brightness sensor can only grasp the approximate brightness of the entire irradiation range covered by the sensor. .. For example, when light treatment is performed on a plurality of people in a common area such as a facility for the elderly, it is difficult to control whether each individual receives the required amount of light received and to minimize the light irradiation.

An object of the present disclosure is to provide a lighting control system that enables management of the amount of light received required for light treatment for an individual to be irradiated, and a resident management system having a lighting control system.

In the illumination control system according to the present disclosure, an irradiation unit that irradiates normal illumination light or at least one or more bioactive light with illumination light having a higher illuminance than normal illumination light as bioactive light, and integration of illuminance and irradiation time. A light receiving amount estimation unit that estimates the light receiving amount received by an individual to be irradiated using a cumulative value as a light receiving amount, and a control unit that controls at least one or more irradiation units are provided, and the control unit is within the irradiation range of the irradiation unit. When there is one light receiving amount estimation unit, if the estimated light receiving amount of the light receiving amount estimation unit is less than a predetermined light receiving amount threshold, bioactive light is irradiated and the estimated light receiving amount of the light receiving amount estimation unit is When it is equal to or more than the light receiving amount threshold, the normal illumination light is controlled to be irradiated, and when there are a plurality of light receiving amount estimation units within the irradiation range of the irradiation unit, the estimated light receiving amount of at least one light receiving amount estimating unit receives light. It is characterized in that when it is less than the quantity threshold, it irradiates bioactive light, and when the estimated light reception amount of all the light reception amount estimation units is equal to or more than the light reception amount threshold, it controls to irradiate normal illumination light.

The resident management system according to the present disclosure is a resident management system that manages the occupants of a facility and has a lighting control system, and the lighting control system bioactivates illumination light having a higher illuminance than normal illumination light. An irradiation unit that irradiates normal illumination light or at least one or more bioactive light as light, and a light reception amount estimation unit that estimates the light reception amount received by an individual to be irradiated by using the integrated cumulative value of illuminance and irradiation time as the light reception amount. A control unit that controls at least one or more irradiation units is provided, and the control unit has an estimated light reception amount of the light reception amount estimation unit when there is one light reception amount estimation unit within the irradiation range of the irradiation unit. If it is less than the predetermined light receiving amount threshold value, it irradiates bioactive light, and if the estimated light receiving amount of the light receiving amount estimation unit is equal to or more than the light receiving amount threshold value, it controls to irradiate the normal illumination light and irradiates the irradiating part. When there are a plurality of light receiving amount estimation units within the range, if the estimated light receiving amount of at least one light receiving amount estimation unit is less than a predetermined light receiving amount threshold value, bioactive light is irradiated and all the received light amounts are received. When the estimated light receiving amount of the estimation unit is equal to or larger than the light receiving amount threshold value, the control of irradiating the normal illumination light is performed.

According to the lighting control system and the resident management system according to the present disclosure, it is possible to manage the amount of received light required for light treatment for an individual to be irradiated.

It is a block diagram which shows the structure of the resident management system which uses the lighting control system which concerns on embodiment. It is a figure which shows the structure of the lighting control system which concerns on embodiment. It is a figure which shows the example of the light receiving amount in the lighting control system which concerns on embodiment. It is a figure which shows the example which there are a plurality of irradiation target individuals in one irradiation range in the lighting control system which concerns on embodiment. FIG. 4 is a diagram showing two examples of the relationship between the light receiving amount and the light receiving amount threshold value of each irradiation target individual. It is a figure which shows the example which there is the irradiation target individual in each of a plurality of irradiation ranges in the lighting control system which concerns on embodiment. It is a flowchart which shows the processing procedure of the control part in the lighting control system which concerns on embodiment. It is a figure which shows another example of the display part in the lighting control system which concerns on embodiment. It is a figure which shows the position information acquisition of the irradiation target individual used for estimating the light receiving amount in the lighting control system which concerns on embodiment. FIG. 9 is a diagram showing an example of related data relating the position and the illuminance used for estimating the amount of received light. It is a figure which shows the estimation of the light receiving amount performed based on FIG. 9 and FIG.

The main body of the system in the embodiment of the present disclosure includes a computer. By executing the program by this computer, the main function of the system in the present disclosure is realized. A computer has a processor that operates according to a program as a main hardware configuration. The type of processor does not matter as long as the function can be realized by executing the program. The processor is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or an LSI (large scale integration). The plurality of electronic circuits may be integrated on one chip or may be provided on a plurality of chips. The plurality of chips may be integrated into one device, or may be provided in a plurality of devices. The program is stored on a non-temporary recording medium such as a computer-readable ROM, optical disc, or hard disk drive. The program may be stored in a recording medium in advance, or may be supplied to the recording medium via a wide area communication network including the Internet or the like.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. The number of irradiation units, the number of control units, the number of individuals to be irradiated, and the like described below are examples for explanation, and can be appropriately changed according to the specifications of the lighting control system and the like. In the following, the corresponding elements will be designated by the same reference numerals in all the drawings, and duplicate description will be omitted.

FIG. 1 is a block diagram showing the configuration of the resident management system 10. The resident management system 10 is a management system that manages the occupants of the facility 8 and has a lighting control system 20. Here, the facility 8 is a living space that includes an individual to be irradiated as a resident who needs light treatment. Light therapy is a phototherapy that adjusts the biological rhythm of an individual to be irradiated by irradiating light with a higher illuminance than the illuminance of normal lighting for a predetermined time during the day. The light treatment is performed using the lighting control system 20. The illuminance of the light to be irradiated and the content of the predetermined time to be irradiated will be described later. Facility 8 is an elderly facility including elderly people whose ability to maintain a biological rhythm is weakened. This is an example for explanation, and may be a facility 8 including patients with seasonal environmental disorders, patients with weakened ability to maintain biological rhythms, patients with life rhythm disorders, patients with depression, and the like. .. The resident management system 10 is not limited to the facility 8, and may be provided at the home of an individual to be irradiated who requires phototherapy. For example, the resident management system 10 can be applied to a home of an irradiation target individual who needs nursing care or support, has a lighting control system 20, and manages the irradiation target individual who is a resident. ..

The resident management system 10 includes an absence management unit 12 that manages the presence / absence of a resident using an infrared sensor or the like, a physical condition management unit 14 that manages the physical condition of a resident, and an environment such as air conditioning in a facility 8. Includes the environmental status management unit 16 that manages the status. These are examples of resident management, and resident management may be performed other than these. Functions related to resident management such as the absence management unit 12, the physical condition management department 14, and the environmental condition management department 16 may be executed in one facility 8 as shown in FIG. 1, and some or all of them may be executed. May be executed at a management center or the like outside the facility 8.

FIG. 1 shows a block diagram of the lighting control system 20. The lighting control system 20 includes an irradiation unit 22, a light receiving amount estimation unit 24, an identifier information unit 26, a control unit 28, and a display unit 30. As shown in FIG. 1, these may be executed in one resident management system 10, and for example, the control unit 28 may be provided outside the resident management system 10. For example, a management center or the like outside the resident management system 10 may execute the function of the control unit 28.

FIG. 2 is a configuration diagram showing an example of the lighting control system 20. In this example, the lighting control system 20 is provided in one room 80 of the facility 8, and although it is not a component of the lighting control system 20, n individuals 50 to be irradiated who are occupying the resident management system 10 It is illustrated. When distinguishing the individual of the plurality of irradiation target individuals 50, a, b, c, n are added as subscripts, such as irradiation target individuals 50a, 50b, 50c, 50n. The same applies to the following. FIG. 1 shows a bed 52a for the irradiation target individual 50a on behalf of the beds for each irradiation target individual 50a, 50b, 50c, 50n.

The illuminating unit 22 is a luminaire that irradiates the normal illumination light 84 or at least one or more bioactive lights 82 (see FIG. 4) with the illumination light having a higher illuminance than the normal illumination light 84 as the bioactive light 82. The normal illumination light 84 is light having an illuminance equivalent to that of general indoor illumination. For example, the facial illuminance of the individual 50 to be irradiated is about 300 to 500 lux, and the horizontal illuminance of the table surface is about 700 lux. In other words, it is a living illumination light by a general fluorescent lamp or the like. The bioactive light 82 is light having an illuminance used for light treatment for adjusting a biological rhythm, and is light having an illuminance about 5 to 10 times that of the normal illumination light 84 under the same conditions for measuring the illuminance. .. As an example, when irradiated with a lighting fixture from the ceiling surface, the facial illuminance of the individual 50 to be irradiated is about 2500 lux, and the illuminance at a distance of 50 cm from the high-illuminance light generating portion of the lighting fixture is about 2500 lux. This numerical value is an example for explanation, and may be changed as appropriate depending on the content of phototherapy. The wavelength of the light may be the same as that of the normal illumination light 84, but in some cases, light having a high color temperature or light having a large amount of blue component may be used, and in that case, light lower than the above illuminance value. Even if it is bioactive light.

The irradiation unit 22 may be a general lighting fixture for ceiling lighting shown in FIG. 1, a desktop lighting fixture, or a wall-mounted lighting fixture. The type of light source is not particularly limited, and either an LED or a fluorescent lamp may be used.

In FIG. 2, there is one irradiation unit 22, and the irradiation range 40A is also one. This is an example, and for example, one irradiation range 40A synthesized by using a plurality of irradiation units 22 may be formed. In that case, the illuminance in one synthesized irradiation range 40A becomes the illuminance of the bioactive light 82. Alternatively, a plurality of irradiation units 22 may be provided in one room 80, and each may have an independent irradiation range. When the facility 8 has a plurality of rooms 80, at least one irradiation region and at least one irradiation unit 22 are provided for each room 80.

The light receiving amount estimation units 24a, 24b, 24c, and 24n in FIG. 2 are light receiving amount estimation units 24 that are attached to the individual individuals 50a, 50b, 50c, and 50n to be irradiated. Here, in order to distinguish the light receiving amount estimation unit 24 of each individual, the same subscript as the subscript used to distinguish the irradiation target individual 50 is added. The same applies to the following. The light receiving amount estimation units 24a, 24b, 24c, 24n are small measuring devices that estimate the light receiving amount of the light treatment received by each irradiation target individual 50a, 50b, 50c, 50n.

Since the light-receiving amount estimation units 24a, 24b, 24c, and 24n all have the same specifications and the mounting locations are the same, the light-receiving amount estimation unit 24a of the individual 50a to be irradiated will be described. Since the light treatment is performed by supplying the bioactive light 82, which is strong light, to the retina of the eye of the individual 50a to be irradiated, the light receiving amount estimation unit 24a is worn on the clothes near the eyes of the individual 50a to be irradiated. It is installed. In the example of FIG. 2, it is arranged on the left shoulder of the irradiation target individual 50a. When the irradiation unit 22 has directivity for light irradiation, the direction of the light receiving surface in the light receiving amount estimation unit 24a may be the direction in which the face of the individual to be irradiated 50a faces. Since the light receiving amount estimation unit 24a is dedicated to the irradiation target individual 50a, the light receiving amount estimation unit 24a has identifier data indicating the irradiation target individual 50a.

The light receiving amount estimation unit 24a in FIG. 2 includes an illuminance detecting unit 60 having a light receiving surface, a time measuring unit 62 for measuring the irradiation time, and a memory for calculating the integrated cumulative value of the illuminance and the irradiation time and using this as the estimated light receiving amount. The light receiving amount calculation unit 64 of the above is included. Further, it includes a transmission unit 66 that transmits an estimated light receiving amount to the control unit 28 together with identifier data indicating the irradiation target individual 50a. Hereinafter, unless otherwise specified, the estimated light-receiving amount is simply referred to as the light-receiving amount. As the light receiving amount estimation unit 24a, an electronic component including an illuminance detection unit 60 such as a photodiode and an integrated circuit having a memory can be used in one package.

In FIG. 2, a receiving unit 70 is provided on the peripheral edge of the lighting fixture, which is the irradiation unit 22, and communication is performed between the light receiving amount estimation unit 24a and the receiving unit 70 by wireless communication, and between the receiving unit 70 and the control unit 28. Is connected by an appropriate signal line. The communication between the light receiving amount estimation unit 24a and the control unit 28 may be bidirectional communication between the data transmission request from the control unit 28 and the data transmission from the light receiving amount estimation unit 24a, and has a predetermined control cycle. It may be a one-way communication transmitted from the light receiving amount estimation unit 24a to the control unit 28. As the wireless communication means, for example, WiFi, ZigBee, Bluetooth (registered trademark) Low Energy and the like can be used.

FIG. 3 shows an example of the integrated cumulative value of the illuminance as the received light amount and the irradiation time. In each figure of FIG. 3, the vertical axis is the illuminance and the horizontal axis is the time. The portion surrounded by the square frame is the light receiving amount estimated by the light receiving amount estimation unit 24a = (integrated cumulative value of illuminance and irradiation time). FIG. 3A shows a case where the illuminance = L1 (lp) and the irradiation time T1 (hour). The amount of light received at this time is (L1 × T1) (lp · hour). FIG. 3B shows a case where the illuminance = L2 (lp) and the irradiation time T2 (hour). The amount of light received at this time is (L2 × T2) (lp · hour). In both FIGS. 3A and 3B, the irradiation of the bioactive light 82 is continuously performed for the irradiation time. In the example of FIG. 3C, the illuminance is L3, but the irradiation of the bioactive light 82 is performed at the irradiation time T3, and then the irradiation at the irradiation time T4 is performed again after a period during which the irradiation at t34 is not performed. After that, the irradiation with the irradiation time T5 is performed again after a period during which the irradiation at t45 is not performed. As described above, even if the irradiation of the bioactive light 82 is intermittent, as long as the non-irradiation periods t34 and t45 are shorter than those of T3, T4 and T5 and do not significantly affect the effect of phototherapy, Irradiation times T3, T4 and T5 can be integrated. Therefore, the light receiving amount in FIG. 3C can be L3 × (T3 + T4 + T5).

Returning to FIG. 2 again, the identifier information unit 26a provided in the vicinity of the bed 52a for the irradiation target individual 50a is a terminal that detects or inputs the identifier information data of the irradiation target individual 50a and transmits it to the control unit 28. In order to distinguish the identifier information unit 26 of each individual of the plurality of irradiation target individuals 50, the same subscript a used for the irradiation target individual 50a was added as a subscript used to distinguish the irradiation target individual 50.

The identifier information data includes the physical information data of the irradiation target individual 50 in addition to the identifier data of the irradiation target individual 50. Hereinafter, identifier information data for the irradiation target individual 50a will be described. The identifier data is identification data indicating that the light receiving amount estimation unit 24a corresponds to the irradiation target individual 50a, and is used to associate the measurement data, control data, and the like in the lighting control system 20 with the irradiation target individual 50a. The physical information data is used for setting a light receiving amount threshold value according to the circumstances of the irradiation target individual 50a. The setting of the received light amount threshold value will be described later. The physical information data of the individual to be irradiated 50a includes information on gender, age, sleep quality, wake-up time, bedtime, medication status, degree of care required, degree of cognitive symptom, and the like.

For information on sleep quality, a pressure sensor installed on the bed 52a and a pressure sensor are used to detect the movement of the individual to be irradiated 50a, and based on a predetermined criterion such as a threshold value, the person is in the middle of sleeping all night. It is detected by a detection circuit that counts the number of awakenings and the number of night wanderings. Instead of the pressure sensor, a radio wave sensor type sensor or an image sensor may be used to detect the sleep state of the irradiation target individual 50a based on a predetermined determination criterion.

Physical information data other than information on sleep quality is input to the identifier information unit 26 by the irradiation target individual 50a itself or the administrator of the lighting control system 20.

In FIG. 2, the control unit 28 controls the operation of the irradiation unit 22 based on the information acquired from the light receiving amount estimation unit 24 and the identifier information unit 26, and outputs the light receiving amount associated with the identifier data to the display unit 30. It is a control device. The display unit 30 is a monitor display and is installed in a place where the administrator of the lighting control system 20 or the irradiation target individual 50 can freely view the display screen.

In the example of FIG. 2, the control unit 28 has n identifiers related to the corresponding n individuals to be irradiated 50a, 50b, 50c, 50n from each of the n light receiving amount estimation units 24a, 24b, 24c, 24n. N light-receiving amounts are transmitted together with the data. The control unit 28 converts the transmitted n sets (identifier data, light receiving amount) into an appropriate display format and transmits the transmission to the display unit 30. In FIG. 2, on the display screen of the display unit 30, the horizontal axis represents the identifier data and the vertical axis represents the received light amount, and the received light amount list 32 shows the received light amount for each of the irradiation target individuals 50a, 50b, 50c, and 50n at a glance. Is displayed. In FIG. 2, the identifier data of the irradiation target individuals 50a, 50b, 50c, and 50n are shown as a, b, c, and n, respectively.

In this way, the current light receiving amount status is displayed in a list for each of the irradiation target individuals 50a, 50b, 50c, and 50n, so that the administrator of the lighting control system 20 can use the irradiation target individuals 50a, 50b, 50c, and 50n for each irradiation target individual 50a, 50b, 50c, and 50n. It will be possible to properly manage how to proceed with optical treatment in the future. Further, even for the individuals 50a, 50b, 50c, and 50n to be irradiated, the progress of light treatment can be confirmed by observing the amount of light received by themselves displayed on the display screen of the display unit 30. In the example of the light receiving amount list 32 of FIG. 2, the light receiving amount of the irradiation target individuals 50b and 50c inside the irradiation range 40A is high, and the light receiving amount of the irradiation target individuals 50a and 50n on the periphery and outside of the irradiation range 40A is high. It turns out to be low. Looking at this, it is expected that the amount of light received by all the individuals 50a, 50b, 50c, 50n to be irradiated will be appropriately increased by moving the individuals 50a, 50n to be irradiated more inside the irradiation range 40A. NS.

If there is a target for the amount of light received, light treatment can be carried out more effectively. As the light receiving amount target, a predetermined light receiving amount threshold value 34 can be used. The predetermined light receiving amount threshold value 34 can be 5000 lux · hour, which is common for phototherapy. This value is uniformly the same value Lth0 without considering the contents of the identifier information unit 26 of the irradiation target individuals 50a, 50b, 50c, and 50n at all. Lth0 is called a standard light receiving amount threshold 34. Hereinafter, unless otherwise specified, the standard light receiving amount threshold value 34 is referred to as a light receiving amount threshold value 34. The light receiving amount list 32 of FIG. 2 shows the light receiving amount threshold value 34. Comparing the light-receiving amount threshold value 34 with the light-receiving amounts of the irradiation target individuals 50a, 50b, 50c, and 50n, since the light-receiving amount of the irradiation target individuals 50b and 50c already satisfies the light-receiving amount threshold value 34, the light treatment is completed. Therefore, it can be seen that the irradiation range of 40A with high illuminance may be deviated. It can also be seen that the remaining irradiation target individuals 50a and 50n need to stay in the irradiation range 40A and continue the light treatment.

The control unit 28 controls the operation of at least one or more irradiation units 22. As shown in FIG. 2, there may be one irradiation unit 22, but when a plurality of irradiation units 22 are provided in one room 80, the facility 8 has a plurality of rooms 80 and each of them is provided with an irradiation unit 22. In some cases. In these cases, the entire operation of the plurality of irradiation units 22 of the facility 8 may be controlled by one control unit 28, or may be divided into several control units 28 for control.

The operation of the irradiation unit 22 in the control unit 28 is controlled by comparing the light reception amount received by the irradiation target individuals 50a, 50b, 50c, and 50n with the light reception amount threshold value 34, respectively. The control of the control unit 28 differs depending on whether the number of the light receiving amount estimation units 24 in the irradiation range 40A of the irradiation unit 22 under the control of the control unit 28 is one or more.

When one of the irradiation target individuals 50a receives the light treatment, there is only one light receiving amount estimation unit 24 in the irradiation range 40A. At this time, the control unit 28 irradiates the bioactive light 82 when the light receiving amount estimated by the light receiving amount estimation unit 24a of the irradiation target individual 50a is less than the predetermined light receiving amount threshold value 34. On the other hand, when the light receiving amount estimated by the light receiving amount estimation unit 24a is the light receiving amount threshold value 34 or more, the control of irradiating the normal illumination light 84 is performed. The value of the received light amount threshold value 34 is Lth0.

As a plurality of examples of the irradiation target individuals 50 receiving the light treatment, FIG. 4 shows a state in which four irradiation target individuals 50a, 50b, 50c, and 50d are in one light treatment room 80. The room 80 has three irradiation units 22a, 22b, and 22c, and one unit (not shown) so that the entire room 80 has one irradiation range of 40A and bioactive light 82 having almost the same illuminance at any place. The entire operation is controlled by the control unit 28 of the above. Since there are four individuals 50a, 50b, 50c, and 50d to be irradiated in the room 80, there are four light receiving amount estimation units 24a, 24b, 24c, and 24d in one irradiation range 40A corresponding to the four individuals 50a, 50b, 50c, and 50d.

When there are a plurality of light receiving amount estimation units 24a, 24b, 24c, 24d within the irradiation range 40A of the irradiation units 22a, 22b, 22c, the control unit 28 controls the entire irradiation units 22a, 22b, 22c as follows. Control the operation. That is, when the light receiving amount estimated by at least one light receiving amount estimation unit 24 is less than the predetermined light receiving amount threshold value 34, the bioactive light 82 is irradiated. On the other hand, when the light receiving amount estimated by all the light receiving amount estimation units 24 is the light receiving amount threshold value 34 or more, the normal illumination light 84 is irradiated.

FIG. 5 shows two examples of the current received light amount list 32 displayed on the display unit 30. Since the contents of the horizontal axis, the vertical axis, and the light receiving amount threshold value 34 of the light receiving amount list 32 are described in FIG. 2, detailed description thereof will be omitted. The identifier data of the light receiving amount estimation units 24a, 24b, 24c, 24d are a, b, c, d.

In the state of the light receiving amount list 32 of FIG. 5A, the two light receiving amounts of the light receiving amount estimating units 24a and 24d are equal to or more than the light receiving amount threshold value 34, but the two light receiving amounts of the light receiving amount estimating units 24b and 24c are The light receiving amount threshold is less than 34. In this state, the control unit 28 controls the irradiation units 22a, 22b, and 22c to irradiate the bioactive light 82. When the bioactive light 82 has been irradiated so far, the irradiation of the bioactive light 82 is continued.

On the other hand, in the state of the light receiving amount list 32 of FIG. 5B, all the light receiving amounts of the light receiving amount estimation units 24a, 24b, 24c, and 24d are the light receiving amount threshold value 34 or more. In this state, the control unit 28 controls the irradiation units 22a, 22b, and 22c to irradiate the normal illumination light 84. When the bioactive light 82 has been irradiated so far, the irradiation of the bioactive light 82 is switched to the irradiation of the normal illumination light 84.

In this way, even when light treatment is performed on a plurality of people, it is possible to control whether or not each individual receives the required amount of light received, and to satisfy all the individuals to be irradiated while satisfying the amount of light received required for light treatment. Energy saving can be achieved by minimizing the irradiation of the bioactive light 82 having an illuminance. In the prior art, it is difficult for the light treatment manager or the like to accurately grasp whether or not the individual to be irradiated receiving the light treatment receives a sufficient amount of light received, so that the irradiation tends to be performed for a long time. By controlling the light receiving amount estimation unit 24a and the like, the light receiving amount list 32 that collectively displays the light receiving amount of each individual, and the irradiation unit 22 based on this, all the individuals to be irradiated receive the light treatment. It is possible to receive the required amount of light received and to achieve appropriate energy saving.

The control processing procedure of the control unit 28 will be described in more detail with reference to FIGS. 6 and 7. In FIG. 6, facility 8 has N rooms 80, each of which has irradiation units 22A, 22B, ... 22N. Each irradiation unit 22A, 22B, ... 22N has three irradiation units 22a, 22b, 22c as described in FIG. Each irradiation unit 22A, 22B, ... 22N is controlled by independent control units 28A, 28B, ... 28N so that the illuminance in each irradiation range 40A, 40B, ... 40N is almost the same everywhere. NS. The irradiation range 40A has four individual light receiving amount estimation units 24a, 24b, 24c, 24d, the irradiation range 40B has one individual light receiving amount estimation unit 24e, and the irradiation range 40N has one individual light receiving amount estimation unit 24e. There are two separate light receiving amount estimation units 24f and 24g. In this way, when the irradiation units 22A, 22B, ... 22N corresponding to the respective irradiation ranges 40A, 40B, ... 40N are controlled by the independent control units 28A, 28B, 28N, respectively, it is described in FIG. Control is also performed for each irradiation unit 22A, 22B ... 22N.

FIG. 7 is a flowchart showing the control procedure of each of the control units 28A, 28B, ... 28N. In particular, the irradiation unit 22A has an irradiation range of 40A having four light receiving amount estimation units 24a, 24b, 24c, and 24d. The procedure for controlling the operation of the control unit 28A will be described.

In an arbitrary control cycle of the control unit 28A, first, each of the light reception amount data is transmitted from the four light reception amount estimation units 24a, 24b, 24c, 24d to the control unit 28A (S10). This processing procedure is executed by the functions of the transmission unit 66 and the like of each light receiving amount estimation unit 24a, 24b, 24c, 24d. The control unit A receives the transmitted light reception amount data of each of the light reception amount estimation units 24a, 24b, 24c, and 24d (S12). Then, first, it is determined whether or not the light-receiving amount of the first light-receiving amount estimation unit 24a is less than Lth0, which is the light-receiving amount threshold value 34 (S14). If the determination in S14 is affirmed, the light-receiving amount of the light-receiving amount estimation unit 24a does not reach the target light-receiving amount of the light treatment (S16). (S32).

If the determination in S14 is denied, the light-receiving amount of the light-receiving amount estimation unit 24a has achieved the target light-receiving amount for light treatment (S18), but the normal illumination light 84 is not immediately irradiated. It is determined whether or not the light receiving amount of the second light receiving amount estimation unit 24b is less than Lth0, which is the light receiving amount threshold value 34 (S20). If the judgment of S20 is affirmed, the light receiving amount of the light receiving amount estimation unit 24b does not reach the target light receiving amount of the light treatment (S22). The command of irradiation of (S32) is continued.

When the judgment of S20 is denied, the light receiving amount of the light receiving amount estimation unit 24b has achieved the target light receiving amount of the light treatment (S24), but instead of immediately irradiating with the normal illumination light 84, it is the third. The above procedure is repeated for the amount of light received by the light receiving amount estimation unit 24c. Then, when the light reception amount of the third light reception amount estimation unit 24c reaches the target light reception amount of the light treatment, the light reception of the final light reception amount estimation unit 24d is not immediately set to the irradiation of the normal illumination light 84. It is determined whether or not the amount is less than Lth0, which is the light receiving amount threshold 34 (S26). If the judgment of S26 is affirmed, the light receiving amount of the light receiving amount estimation unit 24d does not reach the target light receiving amount of the light treatment (S28). The command of irradiation of (S32) is continued. If the judgment of S26 is denied, the light receiving amount of the light receiving amount estimation unit 24d has achieved the target light receiving amount of the light treatment (S30). At this point, all of the four light receiving amount estimation units 24a, 24b, 24c, and 24d in the irradiation range 40A of the irradiation unit 22A under the control of the control unit 28A have reached the target light receiving amount of the light treatment. Therefore, it is not necessary to further irradiate the bioactive light 82. Therefore, the control unit 28A commands the irradiation unit 22A to irradiate the normal illumination light 84 (S34).

When the processing procedure of S32 or S34 is completed, the process waits until the next control cycle. When the next control cycle is reached, the received light amount data of each of the four light received amount estimation units 24a, 24b, 24c, and 24d is updated. This processing procedure is executed by the functions of the light receiving amount estimation units 24a, 24b, 24c, 24d, etc., such as the light receiving amount calculation unit 64. Then, the process returns to S10 and the above processing procedure is repeated. Since the control cycle needs to be irradiated to such an extent that the amount of received light changes during that period, it is preferable to set the control cycle to about a fraction of the irradiation time of the bioactive light 82 per day of the light treatment. When the irradiation time of the bioactive light 82 per day of the light treatment is 4 hours, the control cycle may be about 30 minutes, which is one-eighth of the four hours. This is just an example, and can be changed as appropriate depending on the plan of optical treatment and the like.

In the above, in the control of the irradiation unit 22 of the control unit 28, the light receiving amount is compared with the uniform light receiving amount threshold 34. The amount of light received is not the same for multiple irradiated individuals receiving phototherapy. As an example, light treatment is said to have the effect of adjusting the rhythm of life regarding the level of arousal, so appropriate light treatment improves the quality of arousal during the day and the quality of sleep during the night. If the rhythm of life is in place, the amount of light received for light treatment may be reduced. As described above, the amount of light received is different for each of the plurality of irradiation target individuals who receive the light treatment. Therefore, the amount of light received for each individual to be irradiated is called the bioactive photoreceptive amount, and the relative magnitude of this bioactive photoreceptive amount is based on the identifier information unit 26, which is the physical information data of the individual to be irradiated. Can be determined.

For example, regarding the age of the identifier information unit 26, the older the age, the more the age-related macular degeneration progresses, and the amount of blue light received, which is the key to phototreatment, tends to decrease. In addition, the older the person, the weaker the ability to adjust the biological rhythm and the sharpness of the biological rhythm. From these facts, as the age increases, the amount of bioactive light received, which is the amount of light received required for phototherapy, increases.

Further, with respect to the data detected by the identifier information unit 26a, the greater the number of awakenings during nighttime sleep and the number of times of nighttime wandering, the lower the quality of sleep and the lower the level of arousal. From this, as the quality of sleep decreases, the amount of bioactive light reception, which is the amount of light received required for light treatment, increases, and conversely, as the quality of sleep improves, the amount of bioactive light reception decreases.

As an index of sleep quality, in addition to the number of awakenings during night sleep and the number of night wanderings, the time until falling asleep (the shorter the number, the better the sleep quality) can be used. Alternatively, the longest uninterrupted sleep time in the overnight sleep (longer sleep quality improves), pure sleep time (longer sleep quality improves), and the like may be used.

Other than this, the gender, wake-up time, bedtime, medication status, degree of care required, degree of cognitive symptom, etc. of the identifier information unit 26 are also relative to the amount of bioactive light received, which is the amount of light received required for light treatment. The size can be determined.

As the amount of bioactive light received by the individual to be irradiated decreases, the amount of light received by the individual to be irradiated decreases. Therefore, the light receiving amount threshold value of the light treatment can be reduced from the standard 5000 lux · hour. For example, if the quality of sleep is improved by performing light treatment, the amount of bioactive light received is reduced, and the light receiving amount threshold can be reduced accordingly.

In the above, the display unit 30 is a monitor display installed in a place where the administrator of the lighting control system 20 or an individual to be irradiated can freely see the display screen. Instead of this, a display such as a mobile phone, a tablet terminal, or a personal computer with a display screen can be used as a display unit 30, and display data can be transmitted from the control unit 28. Further, a light emitting unit is provided in the light receiving amount estimation unit of the individual to be irradiated, and a signal indicating whether the light receiving amount is equal to or less than the light receiving amount threshold value 34 is transmitted from the control unit 28 to the light receiving amount estimation unit to light the light emitting unit. , The display unit 30 may be used.

FIG. 8 shows whether the light receiving amount estimated by the light receiving amount estimation unit 24a is equal to or less than the light receiving amount threshold value 34 by providing a light emitting unit 78 in the light receiving amount estimating unit 24a of the irradiation target individual 50a and turning it on or off. It is a figure which shows an example. Here, as the light emitting unit 78, a blue light emitting unit 78a and a red light emitting unit 78b are provided, and when the light receiving amount is equal to or more than the light receiving amount threshold 34, the blue light emitting unit 78a is turned on, and when the light receiving amount is less than the light receiving amount threshold 34, the blue light emitting unit 78a is turned on. The red light emitting unit 78b is turned on. As a result, the irradiation target individual 50a can accurately determine whether to continue the light treatment or to move to the lighting environment of the normal illumination light 84. In the example of FIG. 8, since the red light emitting unit 78b is lit, it can be seen that the light receiving amount is less than the light receiving amount threshold value 34. The content of the light emitting unit 78 described here is an example for explanation, and may be another light emitting method or another color. For example, the blue light emitting unit 78a and the red light emitting unit 78b may be separate bodies, but may be arranged so as to emit light of any color. Alternatively, only the red light emitting unit 78b may be provided, and when the light receiving amount is less than the light receiving amount threshold 34, the light is turned on to emit red light, and when the light receiving amount is equal to or more than the light receiving amount threshold 34, the red light emission may be turned off.

In the above, the light receiving amount estimation unit 24 uses an illuminance detection unit 60 such as a photodiode. The amount of light received by the individual 50 to be irradiated can be estimated without using the illuminance detection unit 60. 9 to 9 are diagrams showing the configuration and action and effect of the light receiving amount estimation unit 24a attached to the irradiation target individual 50a as the light receiving amount estimating unit 24 that does not use the illuminance detecting unit 60.

FIG. 11 is a diagram showing the position of the irradiation target individual 50a in one room 80. The irradiation unit 22 is provided substantially in the center of the ceiling of the room 80. The irradiation target individual 50a wears a light receiving amount estimation unit 24a that does not use the illuminance detection unit 60.

The light receiving amount estimation unit 24a that does not use the illuminance detection unit 60 receives light using the position information estimation unit 90 that estimates the current position of the irradiation target individual 50a and the position / illuminance-related data 92 that associates the illuminance with the position. Estimate the amount. In addition to this, the light receiving amount estimation unit 24a includes a time measuring unit 62, a light receiving amount calculation unit 64, and a transmitting unit 66. Since these are the same contents as those described in the light receiving amount estimation unit 24a using the illuminance detection unit 60, detailed description thereof will be omitted.

The position information estimation unit 90 divides the room 80 into nine segments A, B, C, D, E, F, G, and I, and constantly estimates which segment the current position of the irradiation target individual 50a belongs to. The number of segments in the room 80 is an example, and the room 80 may be divided by a number other than this.

The position information estimation unit 90 is provided with a visible light transmitting unit (not shown) at an appropriate location such as the ceiling of the room 80, and a visible light receiving unit is provided on the light receiving amount estimation unit 24 side to transmit a fixed position. Visible light communication is performed between the unit and the receiving unit that moves together with the irradiation target individual 50a. Then, using the position detection technique by visible light communication, the current position of the light receiving amount estimation unit 24a is constantly estimated based on the fixed position information transmitted from the transmission unit. The estimated accuracy of the current position may be a rough degree of which of the nine segments A, B, C, D, E, F, G, and I belongs.

The position detection technique by visible light communication is an example, and other methods for estimating the current position may be used. For example, an RFID may be used to estimate the current position of the RFID by communicating with a wireless communication means provided at a fixed position. Alternatively, a method of estimating the current position of the light receiving amount estimation unit 24a or the irradiation target individual 50a using an image sensor provided in the room 80 may be used. Alternatively, a method may be used in which a piezoelectric type position sensor mat is laid on the floor surface of the room 80, and the floor surface pressure by the legs of the individual to be irradiated 50a is detected to estimate the current position. The position sensor may be of a type other than the piezoelectric type.

The timing unit 62, in cooperation with the position information estimation unit 90, measures the time staying in each of the segments A to I of the light receiving amount estimation unit 24a. In the example of FIG. 9, the light receiving amount estimation unit 24a first stays in the segment I for the period of time T1, then moves to the segment F, and stays there for the period of time T2. Then, it returns to segment I again, stays there for the period of time T3, then moves to segment I, and the period of time T4 has elapsed. This is an example for explanation, and may stay in a segment other than the segments I and F, and may stay in one segment without moving.

The position / illuminance-related data 92 is data in which the illuminance in each of the nine segments A to F is obtained by simulation or the like according to the arrangement, specifications, etc. of the irradiation unit 22, and the estimated illuminance of the segments A to I is summarized. FIG. 10 shows a related map in which segments A to I are divided as position information and the estimated illuminance of the segment corresponding to the position information is taken as an example of the position / illuminance related data 92. In the example of FIG. 10, the estimated illuminance LI of the segment I is 500 lpx, and the estimated illuminance LF of the segment F is 2500 lpx. The position / illuminance-related data 92 stores the search key as position information in an appropriate memory of the light receiving amount estimation unit 24a. In addition to the map type shown in FIG. 10, the position / illuminance-related data 92 may be a lookup table type or a ROM type that outputs the corresponding estimated illuminance when the position information is input.

The light receiving amount calculation unit 64 obtains the estimated illuminance L at the current position of the light receiving amount estimation unit 24a based on the position information estimation unit 90 and the position / illuminance related data 92. For example, the position / illuminance-related data 92 can be searched using the position information estimated by the position information estimation unit 90 as a search key, and the estimated illuminance at the current position of the light receiving amount estimation unit 24a can be obtained. The light receiving amount calculation unit 64 obtains the residence time T in which the light receiving amount estimation unit 24a stays in the same segment as the current position based on the data of the time measuring unit 62. Then, the residence time in each segment is multiplied by the estimated illuminance of that segment to estimate the amount of light received in that segment. This is cumulatively calculated according to the movement of the current position of the light receiving amount estimation unit 24a, and is used as the estimated light receiving amount of the light receiving amount estimating unit 24a in the room 80.

FIG. 11 is a diagram showing the calculation of the estimated light receiving amount of the light receiving amount estimation unit 24a. As shown in FIG. 9, since the light receiving amount estimation unit 24a first stays in the segment I for a period of time T1, the light receiving amount of that portion is estimated to be (LI × T1). Next, since it moves to the segment F and stays there for the period of time T2, the amount of light received in that portion is estimated to be (LF × T2). Then, it returns to segment I again and stays there for a period of time T3, so that the amount of light received in that portion is estimated to be (LI × T3). After that, it moves to the segment F and the period of time T4 has elapsed, so that the amount of light received in that portion is estimated to be (LF × T4). Therefore, the estimated light receiving amount of the light receiving amount estimation unit 24a is {(LI × T1) + (LF × T2) + (LI × T3) + (LF × T4)}. In this way, the light receiving amount of the light receiving amount estimation unit 24a without using the illuminance detecting unit 60 is estimated.

In the above, the moving range of the light receiving amount estimation unit 24a remains in one room 80, but the moving range of the light receiving amount estimating unit 24a may span a plurality of rooms 80, and the passage portion outside the room 80 may be provided. It may be included. Further, instead of using the position / illuminance-related data 92, GPS and weather information are used to determine whether the current position is indoors or outdoors, and the integrated value is received with the indoor illuminance being 300 lpx and the outdoor illuminance being 5000 lpx, for example. It may be treated as a quantity estimate.

In the above, the amount of received light is estimated based on the integrated cumulative value of the illuminance and the irradiation time, but the luminous flux (lm) may be used instead of the illuminance (lux). For example, if the threshold value is set when the light flux is 40,000 lm for 2 hours, and the actual amount of exposure is 5 hours under the light flux of 20000 lm, it may be determined that the light reception amount is achieved.

The illumination control system 20 according to the present embodiment uses the illumination light having a higher illuminance than the normal illumination light 84 as the bioactive light 82, and irradiates the normal illumination light 84 or at least one or more bioactive light 82 with the irradiation unit 22. To be equipped with. Further, it includes a light receiving amount estimation unit 24 that estimates the light receiving amount received by the irradiation target individual 50, and a control unit 28 that controls at least one or more irradiation units 22, with the integrated cumulative value of the illuminance and the irradiation time as the light receiving amount. The control unit 28 is a living body when there is one light receiving amount estimation unit 24 within the irradiation range of the irradiation unit 22, and when the estimated light receiving amount of the light receiving amount estimation unit 24 is less than a predetermined light receiving amount threshold 34. Irradiate with active light 82. On the other hand, when the estimated light receiving amount of the light receiving amount estimation unit 24 is equal to or more than the light receiving amount threshold value 34, the normal illumination light 84 is irradiated. When there are a plurality of light receiving amount estimation units 24 within the irradiation range of the irradiation unit 22, the control unit 28 is a living body when the estimated light receiving amount of at least one light receiving amount estimating unit 24 is less than the light receiving amount threshold value 34. Irradiate the active light 82. On the other hand, when the estimated light receiving amount of all the light receiving amount estimation units 24 is equal to or higher than the light receiving amount threshold value 34, the normal illumination light 84 is controlled to be irradiated.

According to the above configuration, even when light treatment is performed on a plurality of people, it is possible to manage whether or not each individual receives the required amount of light received, and while satisfying the amount of light received required for light treatment for all the individuals to be irradiated. Energy saving can be achieved by minimizing the irradiation of high-intensity bioactive light 82.

10 Resident management system, 20 Lighting control system, 22, 22A, 22B, 22N, 22a, 22b, 22c Irradiation unit, 24, 24a, 24b, 24c, 24d, 24e, 24f, 24g, 24n Light receiving amount estimation unit, 26 , 26a identifier information unit, 28, 28A, 28B, 28N control unit, 30 display unit, 34 light receiving amount threshold, 40A, 40B, 40N irradiation range, 50, 50a, 50b, 50c, 50d, 50n irradiation target individual, 82 living body Active light, 84 normal illumination light, 90 position information estimation unit, 92 position / illuminance related data.

Claims (6)

An irradiation unit that irradiates the normal illumination light or at least one or more of the bioactive light with an illumination light having a higher illuminance than the normal illumination light as the bioactive light.
A light receiving amount estimation unit that estimates the light receiving amount received by an individual to be irradiated, using the integrated cumulative value of illuminance and irradiation time as the light receiving amount.
A control unit that controls at least one or more of the irradiation units,
With
The control unit
When there is one light receiving amount estimation unit within the irradiation range of the irradiation unit,
When the estimated light receiving amount of the light receiving amount estimation unit is less than the predetermined light receiving amount threshold value, the bioactive light is irradiated, and when the estimated light receiving amount of the light receiving amount estimating unit is equal to or more than the light receiving amount threshold value. Control to irradiate the normal illumination light
When there are a plurality of light receiving amount estimation units within the irradiation range of the irradiation unit,
When the estimated light receiving amount of at least one light receiving amount estimation unit is less than the light receiving amount threshold value, the bioactive light is irradiated.
A lighting control system characterized in that control is performed to irradiate the normal illumination light when the estimated light receiving amount of all the light receiving amount estimation units is equal to or larger than the light receiving amount threshold value. The control unit
The lighting control system according to claim 1, wherein the light receiving amount estimated by the light receiving amount estimation unit of the irradiation target individual, the light receiving amount threshold value, and the identifier information of the irradiation target individual are transmitted to the display unit. .. The control unit
The light receiving amount required for the irradiation target individual is defined as the bioactive light reception amount, and the light reception amount threshold value for the irradiation target individual is reduced as the bioactive light reception amount of the irradiation target individual decreases. The lighting control system according to claim 2. The lighting control system according to claim 2 or 3, wherein the bioactive light reception amount of the irradiation target individual decreases as the sleep quality of the irradiation target individual improves. The light receiving amount estimation unit is
Claim 1 is characterized in that the position information of the irradiation target individual is acquired, the related data relating the position and the illuminance is used, and the received light amount of the irradiation target individual is estimated based on the acquired position information. The lighting control system according to any one of 4 to 4. It is a resident management system that manages the occupants of the facility and has a lighting control system.
The lighting control system
An irradiation unit that irradiates the normal illumination light or at least one or more of the bioactive light with an illumination light having a higher illuminance than the normal illumination light as the bioactive light.
A light receiving amount estimation unit that estimates the light receiving amount received by the individual to be irradiated, using the integrated cumulative value of the illuminance and the irradiation time as the light receiving amount.
A control unit that controls at least one or more of the irradiation units,
With
The control unit
When there is one light receiving amount estimation unit within the irradiation range of the irradiation unit,
When the estimated light receiving amount of the light receiving amount estimation unit is less than the predetermined light receiving amount threshold value, the bioactive light is irradiated, and when the estimated light receiving amount of the light receiving amount estimating unit is equal to or more than the light receiving amount threshold value. Control to irradiate the normal illumination light
When there are a plurality of light receiving amount estimation units within the irradiation range of the irradiation unit,
When the estimated light receiving amount of at least one light receiving amount estimation unit is less than a predetermined light receiving amount threshold value, the bioactive light is irradiated.
A resident management system characterized in that control is performed to irradiate the normal illumination light when the estimated light receiving amount of all the light receiving amount estimating units is equal to or larger than the light receiving amount threshold value.

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