JP6725863B2 - Lighting control method and lighting control system - Google Patents

Description

The present invention relates to a lighting control method and a lighting control system. More specifically, the present invention relates to the control of ambient lighting in an indoor space where, for example, a plurality of office workers can be seated.

Illumination correction control using a brightness sensor (mainly an illuminometer that measures the illuminance on the desk top) is known as illumination control adopted for the purpose of improving energy saving of illumination. Further, there is known a lighting control in which a set value of ambient lighting is changed in a certain fixed time zone in consideration of a biological rhythm of a human body. Furthermore, in recent years, lighting control is known in which the setting value of ambient lighting is changed so as to satisfy the desk surface illuminance required by each worker in offices and the like.

However, in the illuminance correction control by the brightness sensor, the illuminance on the desk surface is determined by the initial setting. Therefore, although a constant illuminance on the desk surface can be maintained, the illumination is turned on more than necessary even during the time period when the illuminance can be lowered, and the energy saving cannot be improved.

In lighting control in which the setting value of ambient lighting is changed in a certain fixed time period in consideration of the biological rhythm of the human body, the setting value of ambient lighting changes regardless of the actual behavior of the employee. Therefore, the request for lighting according to the behavior of the employee may differ from the actual lighting control.

In lighting control that changes the setting value of ambient lighting to satisfy the desk illuminance required by each worker, once the desk illuminance required by each worker is set, even if the desk work is the main task, Even in the case where communication between persons is the main, the ambient lighting is controlled in the same way, although the originally required illuminance on the desk surface is different, and it is not possible to improve energy saving.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting control method and a lighting control system capable of improving energy saving while maintaining the comfort of a worker.

In order to solve the above problems, a first embodiment of the present invention provides a lighting control method in an indoor space in which a plurality of workers can sit,
By detecting the number of workers in the indoor space, indirectly detects the amount of communication between workers in the indoor space,
Increasing the illuminance of the set value of the ambient lighting in accordance with the increase in the amount of communication among pre Quito debtor, reduces the intensity of the set value of the ambient illumination and according to reduction in the amount of communication among the office's An illumination control method is provided.

According to a second aspect of the present invention, there is provided a lighting control system in an indoor space in which a plurality of workers can sit,
An ambient lighting fixture that totally illuminates the interior space;
A detection unit that detects the number of workers in the indoor space,
A lighting control system, comprising: a control unit that controls the ambient lighting device according to an amount of communication between the workers indirectly obtained from the number of the workers detected by the detection unit. I will provide a.

As a result of various studies, the inventors of the present invention have found that there is a positive correlation between the number of workers in the indoor space and the requirement for the brightness of ambient lighting. The present invention has been made based on this finding, and detects the number of workers in the indoor space and changes the setting value of ambient lighting according to the detected number of workers. More specifically, in the present invention, the setting value of ambient lighting is increased as the number of workers increases, and the setting value of ambient lighting is decreased as the number of workers decreases. As a result, in the present invention, it is possible to improve energy saving while maintaining the comfort of the employee.

It is the figure which looked down at the interior space from the ceiling to which the lighting control system concerning the embodiment of the present invention is applied. It is a fragmentary sectional view of the indoor space of FIG. 1, and is a figure which shows schematically the structure of the illumination control system concerning this embodiment.

Prior to specific description of the embodiments of the present invention, a basic idea of lighting control according to the present invention will be described. As mentioned above, the research conducted by the inventors of the present invention has revealed that there is a positive correlation between the number of workers in the indoor space and the requirement for the brightness of ambient lighting. Specifically, as the number of workers in the indoor space increases, the amount (number of times) of communication (meetings, meetings, chats, etc.) between workers increases, and the brightness of ambient lighting increases as the number of communications increases. It turned out that the demand for Moreover, it was found that the requirement for the brightness of ambient lighting was reduced during the time when the desk work was the main activity.

Therefore, in the present invention, focusing on the fact that there is a positive correlation between the number of workers in the indoor space and the requirement for the brightness of the ambient lighting, the number of workers in the indoor space is detected and detected. Change the ambient lighting settings according to the number of workers. More specifically, the setting value of ambient lighting is increased as the number of workers increases, and the setting value of ambient lighting is decreased as the number of workers decreases. In addition, it was decided to meet the requirement of the illuminance on the desk surface of each worker during desk work by using task lighting.

Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a view of an indoor space to which the lighting control system according to the embodiment of the present invention is applied, looking down from the ceiling. FIG. 2 is a partial cross-sectional view of the indoor space of FIG. 1, and is a diagram schematically showing the configuration of the lighting control system according to the present embodiment. In the present embodiment, as a relatively simple example, as shown in FIGS. 1 and 2, the present invention is applied to lighting control in an indoor space 10 in which a single entrance 11 is provided. Note that, in FIGS. 1 and 2, for clarity of the drawings, illustration of windows in the wall surface 12 of the indoor space 10 is omitted.

Referring to FIGS. 1 and 2, the lighting control system according to the present embodiment includes an ambient lighting device 1 that entirely illuminates an interior space 10, a detection unit 2 that detects the number of workers in the interior space 10, and an ambient. A control unit 3 for controlling the lighting fixture 1 and a task lighting fixture (task light) 4 installed on the desk 13 of each employee are provided. The ambient lighting device 1 mainly contributes to the lighting of the wall surface 12 and the floor surface 14 of the indoor space 10, and the task lighting device 4 mainly contributes to the lighting of the desk top surface 13a of each employee.

The detection unit 2 has a reader that is installed at the doorway 11 of the indoor space 10 and reads an RF-ID medium (IC tag, IC card, etc.) worn by each employee. Specifically, the detection unit 2 detects the number of workers in the indoor space 10 by reading the RF-ID medium worn by each worker who enters and leaves the indoor space 10. However, various modifications can be made to the specific configuration and installation position of the detection unit 2. For example, as the detection unit 2, a people counter installed at the doorway 11 of the indoor space 10 can be used.

The output information of the detection unit 2, that is, the information regarding the number of workers in the indoor space 10 is supplied to the control unit 3. The control unit 3 controls the ambient lighting device 1 in accordance with the number of workers detected by the detection unit 2, and consequently changes the set value of ambient lighting. Specifically, the control unit 3 controls the ambient lighting so that the brightness of the ambient lighting increases as the number of workers increases, and the brightness of the ambient lighting decreases as the number of workers decreases. Control the instrument 1. At the time of desk work, each worker secures a desired desk top illuminance by using the task lighting device 4.

As described above, the brightness of the ambient lighting required by the workers has a positive correlation with the number of workers in the indoor space 10 and eventually with the communication amount. In the present embodiment, the setting value of the ambient lighting is increased according to the increase of the number of workers, and the setting value of the ambient lighting is decreased according to the decrease of the number of workers. It is possible to improve the energy saving performance while maintaining it.

Generally, the worker selects the behavior pattern (communication, desk work, etc.) without depending on the biological rhythm. In the present embodiment, lighting control is performed according to an action pattern that is interlocked with the number of workers, so it is possible to improve energy efficiency while maintaining the comfort of workers.

Further, in the present embodiment, the desk top illuminance required by the worker is secured by the task lighting, and the worker's behavior pattern such as deskwork and communication is reflected in the control of the ambient lighting, so that the worker's comfort is improved. It is possible to improve the energy saving performance while maintaining it.

In the above-described embodiment, the detection unit 2 detects the number of workers in the indoor space 10 and changes the setting value of the ambient lighting according to the detected number of workers. However, even if there is no device that detects the number of workers, assuming that the number of workers will gradually decrease after the end of work and eventually the amount of communication between workers will gradually decrease, the time from the end of work By decreasing the setting value of the ambient illumination with the passage of, it is possible to obtain the same effect as the above-described embodiment.

That is, according to another aspect of the present invention, in lighting control in an indoor space in which a plurality of workers can be seated, by decreasing the set value of ambient lighting according to an increase in elapsed time from the end of work time, , It is possible to improve energy efficiency while maintaining the comfort of employees.

1 Ambient Lighting Fixture 2 Detection Unit 3 Control Unit 4 Task Lighting Fixture 10 Indoor Space 11 Doorway 12 Wall Surface 13 Desk 13a Desk Top 14 Floor

Claims (3)

A lighting control method in an indoor space in which a plurality of office workers can be present,
By detecting the number of workers in the indoor space, indirectly detects the amount of communication between workers in the indoor space,
Increasing the illuminance of the set value of the ambient lighting in accordance with the increase in the amount of communication among pre Quito debtor, reduces the intensity of the set value of the ambient illumination and according to reduction in the amount of communication among the office's A lighting control method comprising: A lighting control system in an indoor space in which a plurality of workers can be seated,
An ambient lighting fixture that totally illuminates the interior space;
A detection unit that detects the number of workers in the indoor space,
A lighting control system, comprising: a control unit that controls the ambient lighting device according to an amount of communication between the workers indirectly obtained from the number of the workers detected by the detection unit. .. The control unit increases the brightness of ambient lighting in accordance with an increase in the amount of communication between the office workers, and decreases the brightness of ambient lighting in accordance with a decrease in the amount of communication between the office workers. The lighting control system according to claim 2, further comprising: controlling the ambient lighting device.

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