JP2024053350A - Lighting control system and lighting control device - Google Patents

Abstract

[Problem] It is an object to provide a lighting control system and lighting control device that can improve the safety of a building. [Solution] The lighting control system according to the present disclosure comprises a lighting unit having a light source that illuminates a space, a memory unit that stores a learning model for inferring a brightness setting value of the light source with respect to time, and a control circuit that uses the learning model to control the brightness of the light source according to the time when no one is present in the space. [Selected Figure] Figure 1

Description

This disclosure relates to a lighting control system and a lighting control device.

Patent Document 1 discloses a lighting device that includes a light-emitting unit, a memory unit, an estimation unit, and a lighting control unit. The light-emitting unit has a light source. The memory unit stores a learned model that has learned a correspondence between the terminal storage information stored in the terminal device and at least one of the bedtime or wake-up time of the user who owns the terminal device as a result of machine learning based on learning data. The estimation unit estimates the wake-up time of the user based on an estimated bedtime obtained by inputting the terminal storage information acquired from the terminal device into the learned model, or estimates the bedtime of the user based on an estimated wake-up time obtained by inputting the terminal storage information into the learned model. The lighting control unit controls the light-emitting unit based on the wake-up time or bedtime of the user estimated by the estimation unit.

JP 2022-77117 A

Lighting often plays a major role in determining whether or not someone is in a building. For example, if the lights do not come on even when it gets dark outside, there is a high possibility that no one is in the building. This allows suspicious people who may be burglarizing to know that no one is there, meaning that the building is easy to break into. For this reason, it is possible to turn on the lights even when no one is there. However, if the lights remain on even when it gets bright outside, they may be mistaken for someone forgetting to turn them off.

As a countermeasure to this problem, it is conceivable to automatically control the lights, as described in Patent Document 1. However, since lights are generally turned off during the day, there is a risk that the lights will be determined to have been forgotten to be turned off even if the lights are controlled based only on bedtime and wake-up time.

This disclosure has been made to solve the above-mentioned problems, and aims to provide a lighting control system and lighting control device that can improve the safety of buildings.

The lighting control system according to the present disclosure includes a lighting unit having a light source that illuminates a space, a memory unit that stores a learning model for inferring the brightness setting value of the light source with respect to the time of day, and a control circuit that uses the learning model to control the brightness of the light source according to the time of day when no one is present in the space.

The lighting control device according to the present disclosure includes a memory unit that stores a learning model for inferring the brightness setting value of a light source that illuminates a space with respect to time, and a control circuit that uses the learning model to control the brightness of the light source according to the time when no one is present in the space.

The lighting control system and lighting control device disclosed herein can control the brightness of the light source according to the time of day when no one is present in the space, using a learning model to infer the setting value of the light source brightness for the time of day. This can therefore increase the safety of the building.

1 is a diagram showing a configuration of a lighting control system according to a first embodiment; 4 is a flowchart showing control in the lighting control system according to the first embodiment. 5 is a flowchart showing control in an absence mode according to the first embodiment. FIG. 2 is a diagram showing an example of a general model according to the first embodiment; FIG. 4 is a diagram illustrating an eco mode according to the first embodiment. FIG. 2 is a diagram showing an example of a learning model according to the first embodiment; FIG. 2 is a diagram showing a remote control according to the first embodiment;

The lighting control system and lighting control device according to the present embodiment will be described with reference to the drawings. The same or corresponding components are given the same reference numerals, and repeated descriptions may be omitted.

Embodiment 1.
FIG. 1 is a diagram showing a configuration of a lighting control system 100 according to a first embodiment. The lighting control system 100 includes a plurality of lighting units 11. Each lighting unit 11 includes a lighting device 13 having a light source for illuminating a space, an audio device 14, and a drive circuit 12 for driving the lighting device 13 and the audio device 14. Hereinafter, the space in which the lighting unit 11 is installed may be simply referred to as a space. The plurality of lighting units 11 may be installed in different spaces. The lighting control system 100 may include one or more lighting units 11. The configurations of the plurality of lighting units 11 may be different from each other.

The audio device 14 is a device that generates sound, such as a television or radio. The audio device 14 can generate sounds that may be generated in normal daily life in a building or room having a space illuminated by the lighting device 13. By incorporating the audio device 14 into this system, the security effect can be improved.

When the learning mode is active, when the brightness of the lighting device 13 changes, the memory unit 41 acquires and stores the time 43 of the change and the brightness state 42 of the lighting device 13 at the time of the change. The time 43 is acquired by a timer. The brightness of the lighting device 13 is set by an input device 61 such as a remote control or a switch. The memory unit 41 generates and stores a learning model 53 for inferring the brightness setting value of the lighting device 13 for the time from the stored time 43 of the change and the brightness state 42 of the lighting device 13 at the time of the change. Furthermore, the memory unit 41 pre-stores a general model 52 that indicates the brightness setting value of the lighting device 13 for the time. The general model 52 indicates a general life rhythm, as described below.

By operating the input device 61, the user can select control according to the learning model 53, control according to the general model 52, or normal control 54 that does not use the learning model 53 or the general model 52. The control selection unit 51 selects either the general model 52, the learning model 53, or the normal control 54 in response to a signal from the input device 61. Furthermore, when the general model 52 or the learning model 53 is selected, the user can further select an eco mode 62 that can reduce power consumption by operating the input device 61.

The security unit 71 includes a security camera 72 and an alarm 73. The security unit 71 activates the security camera 72 or the alarm 73 when the general model 52 or the learning model 53 is selected by the control selection unit 51. That is, the security unit 71 recognizes that no one is present in response to a signal from the control selection unit 51, and starts recording by the security camera 72, for example, and activates the sensor of the alarm 73. This can further enhance the security effect. However, the security unit 71 does not have to be provided.

The control circuit 81 collects information from the memory unit 41, control selection unit 51, and input device 61, and instructs the drive circuit 12 of each lighting unit 11 on the drive method. When no one is present in the space, the control circuit 81 controls the brightness of the lighting device 13 according to the time of day using the learning model 53 or general model 52. This makes it difficult for outsiders to recognize that no one is present in the space, thereby improving the safety of the building.

Figure 2 is a flowchart showing the control in the lighting control system 100 according to the first embodiment. The input device 61 can select whether to enable or disable the unattended mode. If the unattended mode is disabled (No in step 1), normal control 54 is performed (step 2). In normal control 54, the control circuit 81 drives the lighting device 13 according to instructions from the input device 61. In normal control 54, if the learning mode is enabled (step 3), the memory unit 41 stores and accumulates information on the state 42 and time 43 when the lighting state of the lighting device 13 changes (step 4). The input device 61 can select whether to enable or disable the learning mode.

When the absent mode is enabled (Yes in step 1), if the learning model 53 is stored in the memory unit 41 (Yes in step 11), the control circuit 81 calls the learning model 53 (step 12). The control circuit 81 checks the current time (step 13), sets the start time of the learning model 53, and activates the absent mode according to the learning model 53 (step 15). However, when the eco mode is enabled (Yes in step 14), the eco absent mode described below is activated (step 17).

If the learning model 53 is not stored in the memory unit 41 (No in step S11), the control circuit 81 calls up the general model 52 (step 21). As described above, either the learning model 53 or the general model 52 may be selectable from the input device 61. The control circuit 81 checks the current time (step 22), sets the start time of the general model 52, and activates an absent mode in accordance with the general model 52 (step 26). However, if the eco mode is enabled (Yes in step S23), the eco absent mode described below is activated (step 24).

When the away mode or eco away mode is activated, the control circuit 81 constantly monitors whether the away mode is stopped (steps 16, 18, 25, 27). When the away mode is stopped by the input device 61, or when the away mode is stopped due to a preset time being reached by a timer or the like, the control circuit 81 stops the away mode and starts normal control 54 (step 2).

Figure 3 is a flowchart showing control in the absence mode according to embodiment 1. When the absence mode is activated, if the security camera 72 is enabled (Yes in step 31), the security unit 71 starts recording on the security camera 72 (step 32). If the alarm 73 is enabled (Yes in step 33), the security unit 71 activates the sensor of the alarm 73 (step 34).

The control circuit 81 checks whether the control selection unit 51 has selected the general model 52 or the learning model 53, and sets the start timing of each model from the current time (step 35). When no one is present in the space, the control circuit 81 can control the brightness of the lighting device 13 according to the time using the learning model or the general model, and output sound from the audio device 14. In other words, if the audio device 14 is active (Yes in step 36), the control circuit 81 starts outputting sound (step 37) and starts controlling the lighting device 13 in accordance with the selected model (step 38).

Figure 4 is a diagram showing an example of a general model 52 according to the first embodiment. Figure 4(a) shows an example of the lighting state of the lighting device 13 in a household with children. In households with children, family members often commute to work and school at different times. This makes the lighting cycle irregular. Figure 4(b) shows an example of the lighting state of the lighting device 13 in a single-person household. In single-person households, people often come to work at a set time and leave work at a set time. This makes the lighting cycle regular. Figure 4(c) shows an example of the lighting state of the lighting device 13 in a company. The lighting state of the lighting device 13 in a company is roughly the opposite of the lighting state of the lighting device 13 in a single-person household, and the lighting cycle is often regular.

In this way, it is advisable to prepare several general models 52 in advance and select the general model 52 that is most suitable for the location where the lighting control system 100 is installed. This can improve security effectiveness even when there is no learning model 53. In addition, the general model 52 may be edited by the user using a personal computer, etc.

Figure 5 is a diagram for explaining the eco mode 62 according to the first embodiment. The state in which the absent mode and the eco mode are enabled is called the eco absent mode. When the eco mode 62 is enabled and the general model 52 is selected, the control circuit 81 reduces the brightness setting value of the lighting device 13 according to the general model by a preset ratio, as shown in Figure 5. This makes it possible to suppress power consumption while enhancing security effects. The same control is also performed when the eco mode is enabled and the learning model 53 is selected. In other words, the control circuit 81 controls the brightness of the lighting device 13 by reducing the brightness setting value of the lighting device 13 according to the learning model 53 by a preset amount in response to an instruction from the external input device 61.

The optimal rate of brightness reduction varies depending on the building in which each lighting device 13 is installed. For this reason, it is preferable that the amount by which the brightness setting value is reduced in eco mode 62 be changeable by the user via the input device 61.

Figure 6 is a diagram showing an example of a learning model 53 according to the first embodiment. When the learning mode is enabled, the storage unit 41 stores the dimming rate, which is the brightness of each lighting device 13, together with the time. For example, on the first day when the learning mode is enabled, the dimming rate and time of the first day shown in Figure 6 (a) are stored as stored data in the storage unit 41. This stored data becomes the learning model 53. On the second day, the storage unit 41 compares the dimming rate and time data of the second day shown in Figure 6 (b) with the data of the first day, and stores the average value as stored data. In this way, the stored data, i.e., the learning model 53, can be updated.

Figure 6 (c) shows the stored data for the second day, that is, the data of the average value of the first and second days. Here, the average value refers to the average value of the time when the lighting state changed, for example, in the data of dimming rate and time for multiple days. From the third day onwards, stored data is generated, for example, from the average value up to the previous day and the data for the current day. This makes it possible to update the learning model 53 to a more accurate one, and to improve security effects. Also, since the data from the previous day and before can be stored as average values, the storage capacity of the storage unit 41 can be reduced.

Figure 7 is a diagram showing a remote control according to the first embodiment. The remote control, which is an input device 61, can perform general operations such as turning on and off the light, controlling the dimming rate, and controlling the color temperature, as well as switching between enabling and disabling the absence mode and switching between enabling and disabling the learning mode. In addition, the remote control may also be capable of switching between enabling and disabling the eco mode 62, setting the rate at which brightness is reduced in the eco mode 62, and editing the general model 52. The above functions may be provided in a switch.

At least some of the functions of the memory unit 41, the control selection unit 51, the security unit 71, and the control circuit 81 can be realized by a control device such as a processor. In other words, the control device stores the learning model 53, and when no one is present in the space, uses the learning model 53 to control the brightness of the lighting device 13 according to the time of day. The functions of the memory unit 41, the control selection unit 51, the security unit 71, and the control circuit 81 may each be realized by a separate control device. In addition, the function of storing the learning model 53, etc. of the memory unit 41 can be realized by a memory such as a non-volatile memory. The memory unit 41 may store a program to be executed by the control device.

In this embodiment, the memory unit 41, the control selection unit 51, and the control circuit 81 constitute a lighting control device. The lighting control device may also include a security unit 71. Furthermore, the function of the memory unit 41 to generate the learning model 53 may be provided in an external server or the like. In other words, the memory unit 41 only needs to have at least the function of storing the learning model 53.

The lighting unit 11 is configured, for example, as a single lighting fixture, with the drive circuit 12, lighting device 13, and audio device 14. This is not limiting, and for example, the lighting device 13 and audio device 14 may be configured as a single lighting fixture, and the drive circuit 12 may be provided separately.

The technical features described in this embodiment may be used in any suitable combination.

Various aspects of the present disclosure are summarized below as appendices.
(Appendix 1)
an illumination unit having a light source that illuminates a space;
A storage unit that stores a learning model for inferring a setting value of the brightness of the light source with respect to time;
a control circuit that controls the brightness of the light source according to the time of day using the learning model when no one is present in the space;
A lighting control system comprising:
(Appendix 2)
The lighting control system described in Appendix 1 is characterized in that, when the brightness of the light source changes, the memory unit acquires the time of the change and the brightness state of the light source at the time of the change, and generates the learning model.
(Appendix 3)
the storage unit stores in advance a general model indicating a setting value of the brightness of the light source with respect to time,
The lighting control system described in Appendix 1 or 2, characterized in that the control circuit controls the brightness of the light source according to the time of day using the learning model or the general model when no one is present in the space.
(Appendix 4)
The lighting control system described in Appendix 3, characterized in that it is equipped with an input device for selecting control according to the learning model, control according to the general model, and normal control which does not use the learning model or the general model.
(Appendix 5)
The lighting control system of any one of claims 1 to 4, characterized in that the control circuit controls the brightness of the light source by reducing the setting value of the brightness of the light source according to the learning model by a predetermined amount in response to an external instruction.
(Appendix 6)
Equipped with an audio device,
The lighting control system of any one of claims 1 to 5, characterized in that when no one is present in the space, the control circuit uses the learning model to control the brightness of the light source according to the time of day, and outputs audio from the audio device.
(Appendix 7)
A security unit having a security camera or an alarm is provided,
The lighting control system described in any one of appendix 1 to 6, characterized in that the security unit activates the security camera or the alarm when the brightness of the light source is controlled according to the time using the learning model.
(Appendix 8)
A storage unit that stores a learning model for inferring a setting value of the brightness of a light source that illuminates a space with respect to time;
a control circuit that controls the brightness of the light source according to the time of day using the learning model when no one is present in the space;
A lighting control device comprising:

11 Lighting section, 12 Drive circuit, 13 Lighting device, 14 Audio device, 41 Memory section, 42 State, 43 Time, 51 Control selection section, 52 General model, 53 Learning model, 54 Normal control, 61 Input device, 62 Eco mode, 71 Security section, 72 Security camera, 73 Alarm, 81 Control circuit, 100 Lighting control system

Claims (8)

an illumination unit having a light source that illuminates a space;
A storage unit that stores a learning model for inferring a setting value of the brightness of the light source with respect to time;
a control circuit that controls the brightness of the light source according to the time of day using the learning model when no one is present in the space;
A lighting control system comprising: The lighting control system of claim 1, characterized in that when the brightness of the light source changes, the memory unit acquires the time of the change and the brightness state of the light source at the time of the change, and generates the learning model. the storage unit stores in advance a general model indicating a setting value of the brightness of the light source with respect to time,
The lighting control system according to claim 1 or 2, characterized in that the control circuit controls the brightness of the light source according to the time of day using the learning model or the general model when no one is present in the space. The lighting control system according to claim 3, further comprising an input device for selecting control according to the learning model, control according to the general model, or normal control that does not use the learning model or the general model. The lighting control system according to claim 1 or 2, characterized in that the control circuit controls the brightness of the light source by reducing the set value of the brightness of the light source according to the learning model by a predetermined amount in response to an external instruction. Equipped with an audio device,
The lighting control system according to claim 1 or 2, characterized in that, when no one is present in the space, the control circuit uses the learning model to control the brightness of the light source according to the time of day, and outputs audio from the audio device. A security unit having a security camera or an alarm is provided,
The lighting control system according to claim 1 or 2, characterized in that the security unit activates the security camera or the alarm when the brightness of the light source is controlled according to the time using the learning model. A storage unit that stores a learning model for inferring a setting value of the brightness of a light source that illuminates a space with respect to time;
a control circuit that controls the brightness of the light source according to the time of day using the learning model when no one is present in the space;
A lighting control device comprising:

Images