Lighting control system and lighting control method

Abstract

To provide an illumination apparatus capable of controlling light distribution of illumination and a direction of radiation depending on positional information.SOLUTION: An illumination control system 1 comprises: an information acquisition unit 13 for acquiring control condition information indicating a control condition for an illumination apparatus 10; and a control unit 12 that on the basis of the control condition information acquired by the information acquisition unit 13, controls at least one of a light color, intensity, light distribution, and a direction of radiation of illumination light to be radiated by the illumination apparatus 10 to reproduce an environment of natural light at a position or season identified from the control condition information acquired by the information acquisition unit 13.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a lighting control system and a lighting control method. [Background technology]

[0002] Conventionally, lighting techniques that reproduce natural light have been devised. Patent Document 1 discloses a lighting device that mimics the sky by controlling the color temperature of lighting according to weather information and the date and time. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-194703 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the technology disclosed in Patent Document 1 was not able to control the light distribution and irradiation direction of lighting in accordance with position information.

[0005] In view of this, the present disclosure provides a lighting control system and the like that can control the light distribution and irradiation direction of lighting according to position information. [Means for solving the problem]

[0006] A lighting system according to an aspect of the present disclosure includes an information acquisition unit that acquires control condition information indicating a control condition of a lighting device, and a lighting control unit that controls a light color, intensity, light distribution, and irradiation direction of illumination light irradiated by the lighting device based on the control condition information acquired by the information acquisition unit. Direction and a control unit that reproduces, by control, a natural light environment at a location or season specified from the control condition information acquired by the information acquisition unit.

[0007] A lighting control method according to one aspect of the present disclosure includes: an information acquisition step of acquiring control condition information indicating a control condition of a lighting device; and determining a light color, intensity distribution, and irradiation direction of illumination light irradiated by the lighting device based on the control condition information acquired in the information acquisition step. Direction By controlling The information acquired in the information acquisition step and a control step of reproducing a natural light environment in a location or season specified from the control condition information.

[0008] These comprehensive or specific aspects may be realized by an apparatus, a method, an integrated circuit, a computer program, or a recording medium such as a computer-readable CD-ROM, or may be realized by any combination of an apparatus, a method, an integrated circuit, a computer program, and a recording medium. Effect of the Invention

[0009] A lighting control system according to an aspect of the present disclosure can control the light distribution and irradiation direction of lighting in accordance with position information. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a block diagram of a lighting control system according to the first embodiment. [Diagram 2] FIG. 2 is a diagram showing how natural light is irradiated indoors. [Diagram 3] FIG. 3 is a diagram showing an overview of a conventional lighting control system. [Figure 4] FIG. 4 is a diagram showing an overview of a lighting control system according to an embodiment. [Diagram 5] FIG. 5 is a flowchart showing an operation of the lighting control system according to the embodiment using information on a specific position. [Figure 6] FIG. 6 is a flowchart showing an operation of using information on a current position of the lighting control system in the embodiment. [Figure 7] FIG. 7 is a flowchart showing an operation of the lighting control system according to the embodiment using information about a particular season. [Figure 8] FIG. 8 is a flowchart showing an operation of the lighting control system according to the embodiment using information on a specific weather condition. [Figure 9] FIG. 9 is a flowchart showing an operation when information on the lighting control system is manually acquired in the embodiment. [Figure 10] FIG. 10 is a flowchart showing an operation for automatically acquiring information on the lighting control system according to the embodiment. [Figure 11] FIG. 11 is a flowchart showing an operation of the lighting control system according to the embodiment when a change in user is accepted. [Figure 12] FIG. 12 is a flowchart showing the control operation based on the amount of bath light of the lighting control system according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the embodiment will be described in detail with reference to the drawings.

[0012] The embodiments described below are all comprehensive or specific examples. The numerical values, shapes, materials, components, the arrangement and connection of the components, steps, and the order of steps shown in the following embodiments are merely examples and are not intended to limit the scope of the claims. Furthermore, among the components according to the following embodiments, those components that are not described in the independent claims showing the highest concept are described as optional components. 。

[0013] In addition, each drawing is a schematic diagram and is not necessarily a precise illustration. In each drawing, the same reference numerals are used for substantially the same configurations, and duplicated explanations may be omitted or simplified.

[0014] (Embodiment 1) [Lighting control system overview] First, an overview of a lighting control system according to an embodiment will be described. Fig. 1 is a block diagram of a lighting control system 1 according to embodiment 1. The lighting control system 1 includes a lighting device 10 and an information terminal 11, and the information terminal 11 includes a control unit 12 and an information acquisition unit 13.

[0015] The lighting device 10 is, for example, a so-called ceiling light that illuminates a room, and is dimming-controlled by a controller. The lighting device 10 is not limited to a ceiling light having a rectangular shape in a plan view, and may be a ceiling light, a spotlight, a base light, a downlight, or the like having a circular shape in a plan view. The lighting device 10 receives a signal from the control unit 12 and irradiates light. Although only one lighting device 10 is illustrated in FIG. 1, the lighting control system 1 may include a plurality of lighting devices 10.

[0016] The information terminal 11 is, for example, a terminal device such as a smartphone or a tablet. The information terminal 11 includes a CPU (Central Processing Unit) and a memory. The information terminal 11 acquires control condition information indicating control conditions of the lighting device from the outside, and controls the lighting device 10 based on the control condition information.

[0017] Based on the control condition information, the control unit 12 controls at least one of the light color, the intensity distribution, and the irradiation direction of the illumination light emitted by the lighting device 10, thereby reproducing the natural light environment at the position or season specified from the control condition information acquired by the information acquisition unit 13. The control unit 12 is realized by a CPU and a memory.

[0018] The information acquisition unit 13 acquires control condition information indicating the control conditions of the lighting device. Here, the control condition information is, for example, any one of location information, date and time information, seasonal information, and weather information. The information acquisition unit 13 may acquire the control condition information manually input by a user, or may automatically acquire the control condition information. The information acquisition unit 13 is realized by a CPU and a memory.

[0019] [Natural light exposure] Next, the illumination of natural light reproduced by the lighting control system 1 in the embodiment will be described. Fig. 2 is a diagram showing the illumination of natural light indoors. As shown in Fig. 2, when the sun is at a relatively high position during the day, natural light enters the room through the window at a relatively sharp angle. At this time, the natural light entering the room through the window does not illuminate the area near the center of the room, but illuminates the floor near the window.

[0020] Next, when the sun moves from a relatively high position during the day to a relatively low position, natural light enters the room through the window at a relatively gentle angle. At this time, the natural light entering the room through the window illuminates up to the center of the room.

[0021] As shown in Figure 2, the area illuminated by natural light coming in through the window gradually shifts from the floor near the window toward the center of the room as the sun's position moves from a relatively high position to a relatively low position. Also, the area illuminated by natural light coming in through the window gradually changes from a relatively narrow range to a relatively wide range as the sun's position moves from a relatively high position to a relatively low position.

[0022] In addition, the color temperature of natural light entering through a window gradually changes as the position of the sun moves from a relatively high position to a relatively low position. For example, the color temperature of natural light entering through a window is relatively high when the position of the sun is relatively high, and is relatively low when the position of the sun is relatively low.

[0023] In addition, the illuminance of natural light coming through a window also changes depending on the position of the sun. As described above, the position where natural light is irradiated in a room, the illuminance of natural light, and the color temperature of natural light change depending on the direction of the sun and its height. In addition, the position where natural light is irradiated in a room, the illuminance of natural light, and the color temperature of natural light also change depending on the geographical location of the room, the direction from which the light is collected, the season, the time, the weather, etc.

[0024] [Comparison with conventional lighting systems] Next, a comparison between a conventional lighting control system and the lighting control system 1 in the embodiment will be described. FIG. 3 is a diagram showing an outline of the conventional lighting control system. The conventional lighting control system includes a plurality of lighting devices, and irradiates light from near the ceiling toward the floor. In this case, the user had to manually change the light distribution and irradiation direction of each of the plurality of lighting devices. Furthermore, when the conventional lighting control system was installed in a closed space where natural light was not irradiated, the irradiation direction of the light was constant.

[0025] In contrast, lighting control system 1 in an embodiment has the following features. Fig. 4 is a diagram showing an overview of lighting control system 1 in an embodiment. Lighting control system 1 includes a plurality of lighting devices 10, and automatically controls at least one of the light color, intensity, light distribution, and irradiation direction of each lighting device 10. Control unit 12 of lighting control system 1 controls lighting devices 10 based on control condition information acquired by information acquisition unit 13, thereby automatically recreating a space where natural light shines in through a window.

[0026] The multiple lights provided in the lighting control system 1 may be installed on a ceiling or a wall. When the multiple lights provided in the lighting control system 1 are installed on a wall, they may be embedded in a portion of the wall that resembles a window, for example.

[0027] [Operation] Next, a description will be given of the operation of the lighting control system 1. First, a description will be given of the operation using information on a specific position of the lighting control system 1. Fig. 5 is a flowchart showing the operation using information on a specific position of the lighting control system 1 in an embodiment.

[0028] First, the information acquisition unit 13 acquires information on a specific location (step S10). The information acquisition unit 13 may acquire latitude and longitude information on the earth as the location information. The information acquisition unit 13 may acquire information such as latitude and longitude information manually input by a user or a place name linked to the latitude and longitude information.

[0029] Next, the control unit 12 controls the illumination light to reproduce natural light at a specific position (step S11). The control unit 12 controls at least one of the light color, intensity, light distribution, and irradiation direction of the illumination light emitted by the lighting device 10.

[0030] For example, the control unit 12 reproduces the angle of natural light shining through a window assumed to be located at a predetermined position at the position by controlling the light distribution and irradiation direction of the illumination light irradiated by the lighting device 10 based on the information of the specific position of the information acquisition unit 13 acquired by the information acquisition unit 13. Specifically, the control unit 12 reproducing the angle of natural light shining through a window assumed to be located at a predetermined position means that the control unit 12 automatically controls the area irradiated by the illumination light irradiated by the lighting device 10.

[0031] For example, the control unit 12 may automatically adjust the angle of the lighting device 10 in order to automatically control the area illuminated by the illumination light emitted by the lighting device 10.

[0032] At this time, the control unit 12 may reproduce natural light at the time when the control unit 12 performs control. Specifically, in order to reproduce natural light at a specific time at a specific position, the control unit 12 controls the light color and intensity of the illumination light emitted by the lighting device 10 together with the light distribution and irradiation direction.

[0033] The control unit 12 may also reproduce natural light at a predetermined time. For example, the control unit 12 may control at least one of the light color, intensity, light distribution, and irradiation direction of the illumination light emitted by the lighting device 10 so as to reproduce natural light at a predetermined time acquired by the information acquisition unit 13 and manually input by the user.

[0034] For example, when the information acquisition unit 13 acquires information on the place name Washington in the United States, the control unit 12 reproduces the angle of natural light entering through a window assumed to be located at a specific position at the latitude and longitude of Washington in the United States.

[0035] Specifically, the control unit 12 determines the position, illuminance, and light color of the sun at the location represented by the latitude and longitude information at the relevant time based on the latitude and longitude information linked to the place name. The control unit 12 may store information on the position and light color of the sun at the location represented by the latitude and longitude information at the relevant time in advance, or may use an algorithm to calculate the position and light color of the sun at the location represented by the latitude and longitude information at the relevant time.

[0036] Then, the control unit 12 determines parameters for controlling the lighting device 10 so as to reproduce the information on the position of the sun and the light color at the location represented by the latitude and longitude information at the relevant time. The control unit 12 determines the illuminance and light color of the lighting device 10, as well as the direction and angle at which the lighting device 10 is operated, based on information on the arrangement of the multiple lighting devices 10 that has been acquired in advance. Note that the control unit 12 may perform the above process by acquiring only the latitude and longitude information without acquiring the place name.

[0037] At this time, the control unit 12 may reproduce natural light at the time when the control unit 12 performs control. Specifically, in order to reproduce natural light at a specific time at a specific position, the control unit 12 controls the light color and intensity of the illumination light emitted by the lighting device 10 together with the light distribution and irradiation direction.

[0038] The control unit 12 may also reproduce natural light at a predetermined time. For example, the control unit 12 may control at least one of the light color, intensity, light distribution, and irradiation direction of the illumination light emitted by the lighting device 10 so as to reproduce natural light at a predetermined time acquired by the information acquisition unit 13 and manually input by the user.

[0039] For example, when reproducing natural light at noon, the control unit 12 increases the color temperature of the illumination light and increases the intensity of the illumination light.Then, the control unit 12 controls the light distribution and irradiation direction of the illumination light to reproduce, using the illumination light emitted by the lighting device 10, an irradiation area of ​​light in a room when light enters at a relatively sharp angle from a window assumed to be located at a predetermined position.

[0040] In contrast, to reproduce natural light at 5 p.m., the color temperature of the illumination light is lowered and the intensity of the illumination light is weakened. Then, the control unit 12 controls the light distribution and irradiation direction of the illumination light to reproduce, using the illumination light emitted by the lighting device 10, an irradiation area of ​​light in a room when light enters at a relatively gentle angle from a window assumed to be located at a predetermined position.

[0041] Next, a description will be given of an operation using the GPS function of the lighting control system 1. Fig. 6 is a flow chart showing an operation using information on the current position of the lighting control system 1 in the embodiment.

[0042] First, the information acquisition unit 13 acquires information on the current position (step S20). The information acquisition unit 13 may have a GPS function and automatically acquire information on the current position where the information acquisition unit 13 of the lighting control system 1 is located. Here, the information on the current position may be, for example, latitude and longitude information on the earth. The control unit 12 may acquire the information on the current position using, for example, a general-purpose GIS (Geographic Information System), or may operate the acquired information on the current position.

[0043] Next, the control unit 12 controls the illumination light to reproduce natural light at the current position (step S21). The control unit 12 controls at least one of the light color, intensity, light distribution, and irradiation direction of the illumination light emitted by the lighting device 10.

[0044] For example, the control unit 12 reproduces the angle of natural light shining through a window assumed to be located at a predetermined position at the position by controlling the light distribution and irradiation direction of the illumination light irradiated by the lighting device 10 based on the information of the current position of the information acquisition unit 13 acquired by the information acquisition unit 13. Specifically, the control unit 12 reproducing the angle of natural light shining through a window assumed to be located at a predetermined position means that the control unit 12 automatically controls the area irradiated with the illumination light irradiated by the lighting device 10.

[0045] For example, the control unit 12 may automatically adjust the angle of the lighting device 10 in order to automatically control the area illuminated by the illumination light emitted by the lighting device 10.

[0046] At this time, the control unit 12 may reproduce natural light at the time when the control unit 12 performs control. Specifically, in order to reproduce natural light at a specific time at a specific position, the control unit 12 controls the light color and intensity of the illumination light emitted by the lighting device 10 together with the light distribution and irradiation direction.

[0047] The control unit 12 may also reproduce natural light at a predetermined time. For example, the control unit 12 may control at least one of the light color, intensity, light distribution, and irradiation direction of the illumination light emitted by the lighting device 10 so as to reproduce natural light at a predetermined time acquired by the information acquisition unit 13 and manually input by the user.

[0048] For example, when reproducing natural light at noon, the control unit 12 increases the color temperature of the illumination light and increases the intensity of the illumination light.Then, the control unit 12 controls the light distribution and irradiation direction of the illumination light to reproduce, using the illumination light emitted by the lighting device 10, an irradiation area of ​​light in a room when light enters at a relatively sharp angle from a window assumed to be located at a predetermined position.

[0049] In contrast, to reproduce natural light at 5 p.m., the color temperature of the illumination light is lowered and the intensity of the illumination light is weakened. Then, the control unit 12 controls the light distribution and irradiation direction of the illumination light to reproduce, using the illumination light emitted by the lighting device 10, an irradiation area of ​​light in a room when light enters at a relatively gentle angle from a window assumed to be located at a predetermined position.

[0050] Specifically, based on the latitude and longitude information of the current location, the control unit 12 determines the position, illuminance, and light color of the sun at the location represented by the latitude and longitude information at the relevant time. The control unit 12 may store in advance information on the position and light color of the sun at the location represented by the latitude and longitude information at the relevant time, or may use an algorithm to calculate the position and light color of the sun at the location represented by the latitude and longitude information at the relevant time.

[0051] Then, the control unit 12 determines parameters for controlling the lighting device 10 so as to reproduce the information on the position of the sun and the light color at the location represented by the latitude and longitude information at the relevant time. The control unit 12 determines the illuminance and light color of the lighting device 10, as well as the direction and angle at which the lighting device 10 is operated, based on information on the arrangement of the multiple lighting devices 10 that has been acquired in advance.

[0052] Next, a description will be given of the operation of the lighting control system 1 using the information on a specific season. Fig. 7 is a flowchart showing the operation of the lighting control system 1 according to the embodiment using the information on a specific season.

[0053] First, the information acquisition unit 13 acquires information on a specific season (step S30). The information acquisition unit 13 may acquire information distinguishing between spring, summer, autumn, and winter as seasonal information. The information acquisition unit 13 may acquire information distinguishing between spring, summer, autumn, and winter by manual input by the user, or may automatically acquire information distinguishing between spring, summer, autumn, and winter based on a date and time calculated by a built-in clock function. Note that the seasonal information is not limited to spring, summer, autumn, and winter. The seasonal information may be any information that can identify a specific time of the year.

[0054] Next, the control unit 12 controls the illumination light to reproduce natural light in a particular season (step S31). The control unit 12 controls at least one of the light color, intensity, light distribution, and irradiation direction of the illumination light emitted by the lighting device 10.

[0055] For example, the control unit 12 reproduces the angle of natural light in the season from a window assumed to be located in a predetermined position by controlling the light distribution and irradiation direction of the illumination light emitted by the lighting device 10 based on the information of a specific season acquired by the information acquisition unit 13. Specifically, the control unit 12 reproducing the angle of natural light in the season from a window assumed to be located in a predetermined position means that the control unit 12 automatically controls the area illuminated by the illumination light emitted by the lighting device 10.

[0056] For example, the control unit 12 may automatically adjust the angle of the lighting device 10 in order to automatically control the area illuminated by the illumination light emitted by the lighting device 10.

[0057] For example, when the information acquisition unit 13 acquires information on the season of spring, the control unit 12 reproduces the angle of natural light entering through a window assumed to be located at a predetermined position, calculated from the orbit of the sun in spring. At this time, the control unit 12 controls the light color and intensity of the illumination light emitted by the lighting device 10 together with the light distribution and irradiation direction in order to reproduce the natural light in a specific season.

[0058] The control unit 12 may reproduce natural light at the time when the control unit 12 performs control. The control unit 12 may control at least one of the light color, intensity, light distribution, and irradiation direction of the illumination light emitted by the lighting device 10 so as to reproduce natural light at the current time calculated from a built-in clock function. The control unit 12 does not need to have a built-in clock function, and may obtain the current time from a clock function external to the control unit 12.

[0059] The control unit 12 may also reproduce natural light at a predetermined time. For example, the control unit 12 may control at least one of the light color, intensity, light distribution, and irradiation direction of the illumination light emitted by the lighting device 10 so as to reproduce natural light at a predetermined time acquired by the information acquisition unit 13 and manually input by the user.

[0060] For example, when reproducing natural light at noon, the control unit 12 increases the color temperature of the illumination light and increases the intensity of the illumination light.Then, the control unit 12 controls the light distribution and irradiation direction of the illumination light to reproduce, using the illumination light emitted by the lighting device 10, an irradiation area of ​​light in a room when light enters at a relatively sharp angle from a window assumed to be located at a predetermined position.

[0061] In contrast, to reproduce natural light at 5 p.m., the color temperature of the illumination light is lowered and the intensity of the illumination light is weakened. Then, the control unit 12 controls the light distribution and irradiation direction of the illumination light to reproduce, using the illumination light emitted by the lighting device 10, an irradiation area of ​​light in a room when light enters at a relatively gentle angle from a window assumed to be located at a predetermined position.

[0062] Next, a description will be given of an operation of the lighting control system 1 using information on a specific weather condition. Fig. 8 is a flowchart showing an operation of the lighting control system 1 according to an embodiment using information on a specific weather condition.

[0063] First, the information acquisition unit 13 acquires information on a specific weather condition (step S40). The information acquisition unit 13 may acquire information distinguishing between sunny, rainy, cloudy, and snowy weather conditions as the weather information. The information acquisition unit 13 may acquire weather information manually input by a user, or may connect to an external server and automatically acquire weather information.

[0064] For example, the information acquisition unit 13 may connect to an external server to acquire current weather information at the current location. Alternatively, the information acquisition unit 13 may connect to an external server to acquire current weather information at an arbitrary location. When connecting to an external server to automatically acquire weather information, the information acquisition unit 13 may have a communication function.

[0065] Next, the control unit 12 controls the illumination light to reproduce natural light in a specific weather condition (step S41). The control unit 12 controls at least one of the light color, intensity, light distribution, and irradiation direction of the illumination light emitted by the lighting device 10.

[0066] For example, the control unit 12 reproduces the illuminance of natural light from a window assumed to be located in a predetermined position in the relevant weather condition by controlling the light distribution and irradiation direction of the illumination light emitted by the lighting device 10 based on the specific weather information acquired by the information acquisition unit 13. Specifically, the control unit 12 reproducing the illuminance of natural light from a window assumed to be located in a predetermined position means that the control unit 12 controls the illuminance of the illumination light emitted by the lighting device 10.

[0067] For example, the control unit 12 may automatically adjust the angle of the lighting device 10 in order to automatically control the area illuminated by the illumination light emitted by the lighting device 10.

[0068] For example, when the information acquiring unit 13 acquires weather information indicating rain, the control unit 12 reproduces the illuminance of natural light from a window assumed to be located at a predetermined position from the illuminance of general natural light in rain. At this time, the control unit 12 controls the light color and intensity of the illumination light emitted by the lighting device 10 in order to reproduce the natural light in a specific weather condition.

[0069] The control unit 12 may reproduce natural light at the time when the control unit 12 performs control. The control unit 12 may control at least one of the light color, intensity, light distribution, and irradiation direction of the illumination light emitted by the lighting device 10 so as to reproduce natural light at the current time calculated from a built-in clock function. The control unit 12 does not need to have a built-in clock function, and may obtain the current time from a clock function external to the control unit 12.

[0070] The control unit 12 may also reproduce natural light at a predetermined time. For example, the control unit 12 may control at least one of the light color, intensity, light distribution, and irradiation direction of the illumination light emitted by the lighting device 10 so as to reproduce natural light at a predetermined time acquired by the information acquisition unit 13 and manually input by the user.

[0071] For example, when reproducing natural light at noon, the control unit 12 increases the color temperature of the illumination light and increases the intensity of the illumination light.Then, the control unit 12 controls the light distribution and irradiation direction of the illumination light to reproduce, using the illumination light emitted by the lighting device 10, an irradiation area of ​​light in a room when light enters at a relatively sharp angle from a window assumed to be located at a predetermined position.

[0072] In contrast, to reproduce natural light at 5 p.m., the color temperature of the illumination light is lowered and the intensity of the illumination light is weakened. Then, the control unit 12 controls the light distribution and irradiation direction of the illumination light to reproduce, using the illumination light emitted by the lighting device 10, an irradiation area of ​​light in a room when light enters at a relatively gentle angle from a window assumed to be located at a predetermined position.

[0073] [Getting information] Next, a description will be given of the operation when manually acquiring information on the lighting control system 1. Fig. 9 is a flowchart showing the operation when manually acquiring information on the lighting control system 1 in an embodiment.

[0074] First, the user manually inputs information (step 50). The user manually inputs at least one of location information, season information, and weather information into an input unit included in the information terminal 11 of the lighting control system 1.

[0075] The user may input at least one of location information, seasonal information, and weather information as text information into the input unit of information terminal 11, or may input at least one of location information, seasonal information, and weather information by selecting any option from options indicating location information, seasonal information, or weather information displayed on the display unit of information terminal 11.

[0076] Next, the information acquiring unit 13 acquires manually input information (step S51). The information acquiring unit 13 acquires at least one of location information, seasonal information, and weather information input by the user to the input unit included in the information terminal 11. The information acquiring unit 13 may acquire at least one of location information, seasonal information, and weather information by accepting a user's selection action for an option displayed on the display unit included in the information terminal 11.

[0077] Next, a description will be given of an operation when automatically acquiring information on the lighting control system 1. Fig. 10 is a flowchart showing an operation when automatically acquiring information on the lighting control system 1 in an embodiment.

[0078] First, the information acquisition unit 13 automatically acquires information (step S60). The information acquisition unit 13 has, for example, a GPS function and automatically acquires information on the current location of the information terminal 11. Also, for example, the information acquisition unit 13 has a communication function and connects to an external server to automatically acquire location information, seasonal information, weather information, and the like. The information acquisition unit 13 may acquire date and time information from the external server.

[0079] [Accepting changes from users] Next, a description will be given of the operation of accepting a change from a user of the lighting control system 1. Fig. 11 is a flowchart showing the operation of the lighting control system 1 according to the embodiment when accepting a change from a user.

[0080] First, the information acquisition unit 13 accepts a change from the user to at least one of the light color, intensity, light distribution, and irradiation direction of the illumination light (step S70). The user inputs information on the change to at least one of the light color, intensity, light distribution, and irradiation direction of the illumination light to an input unit provided in the information terminal 11.

[0081] Next, the control unit 12 changes the control of the illumination light based on the change from the user (step S71). The control unit 12 controls at least one of the light color, intensity, light distribution, and irradiation direction of the illumination light emitted by the lighting device 10.

[0082] [Control based on light exposure] Next, a description will be given of the control operation based on the amount of light exposure of a user of the lighting control system 1. Fig. 12 is a flowchart showing the control operation based on the amount of light exposure of the lighting control system 1 according to an embodiment.

[0083] First, the control unit 12 determines whether the amount of light exposure of the user is less than a predetermined value (step S80). The information acquisition unit 13 acquires the position information of the user, and the control unit 12 calculates the amount of light exposure of the user based on the position information of the user.

[0084] For example, when the control unit 12 determines that the user is outdoors based on the user's location information, it estimates the amount of light exposure of the user based on the average amount of natural light irradiated during the time period when the user was outdoors.

[0085] Furthermore, when the control unit 12 determines from the user's position information that the user is in a room where the lighting control system 1 is installed, it estimates the amount of light exposure of the user based on the amount of irradiation of the lighting device 10. Furthermore, when the control unit 12 determines from the user's position information that the user is indoors, it estimates the amount of light exposure of the user based on the average amount of irradiation of indoor lighting.

[0086] When the control unit 12 determines that the amount of light exposure of the user is less than the predetermined value (Yes in step S80), the control unit 12 increases the intensity of the illumination light (step S81). The control unit 12 controls the lighting device 10 to increase the intensity of the illumination light emitted by the lighting device 10. The control unit 12 may simultaneously control the light color of the illumination light emitted by the lighting device 10. For example, the control unit 12 may increase the color temperature of the light color of the illumination light emitted by the lighting device 10.

[0087] If the control unit 12 determines that the amount of light exposure of the user is not less than the predetermined value (No in step S80), the control unit 12 maintains or weakens the intensity of the illumination light (step S82). The control unit 12 controls the lighting device 10 to maintain or weaken the intensity of the illumination light emitted by the lighting device 10. At the same time, the control unit 12 may maintain the light color of the illumination light emitted by the lighting device 10. Alternatively, the control unit 12 may lower the color temperature of the light color of the illumination light emitted by the lighting device 10.

[0088] [Effects, etc.] The lighting control system 1 of the present disclosure includes an information acquisition unit 13 that acquires control condition information indicating the control conditions of the lighting device 10, and a control unit 12 that reproduces the natural light environment at a location or season specified from the control condition information acquired by the information acquisition unit 13 by controlling at least one of the light color, intensity, light distribution, and irradiation direction of the illumination light emitted by the lighting device 10 based on the control condition information acquired by the information acquisition unit 13.

[0089] As a result, the lighting control system 1 of the present disclosure can emit light that reproduces natural light at a specific location or in a specific season. Therefore, the lighting control system 1 of the present disclosure can reproduce an environment in which natural light is used even in a room where natural light cannot be used.

[0090] In the lighting control system 1 of the present disclosure, the information acquisition unit 13 has a GPS function and acquires information on the current location of the device equipped with the information acquisition unit 13 as control condition information, and the control unit 12 reproduces the natural light environment at the location indicated by the current location information acquired by the information acquisition unit 13.

[0091] As a result, the lighting control system 1 of the present disclosure can emit light that reproduces the natural light at the current position of the information acquisition unit 13. Therefore, the lighting control system 1 of the present disclosure can reproduce an environment in which natural light is used even in a room where natural light cannot be used.

[0092] In the lighting control system 1 disclosed herein, the information acquisition unit 13 acquires information on an arbitrary location or an arbitrary season selected by a user as control condition information, and the control unit 12 reproduces the natural light environment at the location indicated by the information on the arbitrary location acquired by the information acquisition unit 13 or in the season indicated by the information on the arbitrary season.

[0093] As a result, the lighting control system 1 of the present disclosure can emit light that reproduces natural light at any position or in any season. Therefore, the lighting control system 1 of the present disclosure can reproduce an environment in which natural light is used even in a room where natural lighting is not possible.

[0094] In the lighting control system 1 of the present disclosure, the information acquisition unit 13 acquires weather information as control condition information, and the control unit 12 reproduces a natural light environment in the weather indicated by the weather information acquired by the information acquisition unit 13.

[0095] As a result, the lighting control system 1 of the present disclosure can emit light that reproduces natural light in a specific weather condition. Therefore, the lighting control system 1 of the present disclosure can reproduce an environment in which natural light is used even in a room where natural lighting is not available.

[0096] In the lighting control system 1 of the present disclosure, the information acquisition unit 13 acquires information manually input by the user.

[0097] This allows the lighting control system 1 of the present disclosure to acquire any information manually input by the user.

[0098] In the lighting control system 1 of the present disclosure, the information acquisition unit 13 acquires automatically input information.

[0099] This allows the lighting control system 1 of the present disclosure to automatically acquire control condition information.

[0100] In the lighting control system 1 of the present disclosure, at least one of the light color, intensity, light distribution, and irradiation direction of the illumination light emitted by the lighting device 10 controlled by the control unit 12 can be changed by the user.

[0101] This allows the lighting control system 1 of the present disclosure to receive a request for a change in control from a user.

[0102] In the lighting control system 1 of the present disclosure, the control unit 12 changes the intensity of the illumination light emitted by the lighting device 10 in accordance with the amount of light irradiated onto the user, which is calculated from the user's position information.

[0103] In this way, the lighting control system 1 of the present disclosure can emit illumination light from the lighting device 10 so that the user can enjoy a sufficient amount of light.

[0104] Lighting Control of the Present Disclosure method The method includes an information acquisition step of acquiring control condition information indicating a control condition of the lighting device, and determining a light color, intensity distribution, and irradiation direction of illumination light irradiated by the lighting device 10 based on the control condition information acquired in the information acquisition step. Direction By controlling In the information acquisition step acquisition Be and a control step of reproducing the natural light environment in a location or season specified from the control condition information.

[0105] As a result, the lighting control method of the present disclosure can achieve the same effects as the lighting control system 1 described above.

[0106] (others) Although the embodiments have been described above, the present disclosure is not limited to the above-described embodiments.

[0107] For example, in the above embodiment, the process executed by a specific processing unit may be executed by another processing unit. Also, the order of multiple processes may be changed, or multiple processes may be executed in parallel.

[0108] In the above embodiment, each component may be realized by executing a software program suitable for each component. Each component may be realized by a program execution unit such as a CPU or a processor reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory.

[0109] Furthermore, each component may be realized by hardware. For example, each component may be a circuit (or an integrated circuit). These circuits may form a single circuit as a whole, or each may be a separate circuit. Furthermore, each of these circuits may be a general-purpose circuit, or a dedicated circuit.

[0110] In addition, the general or specific aspects of the present disclosure may be realized in a system, an apparatus, a method, an integrated circuit, a computer program, or a computer-readable recording medium such as a CD-ROM. In addition, the general or specific aspects of the present disclosure may be realized in any combination of a system, an apparatus, a method, an integrated circuit, a computer program, and a recording medium.

[0111] For example, the present disclosure may be realized as a program for causing a computer to execute the lighting control method according to the above embodiment. The present disclosure may be realized as a computer-readable non-transitory recording medium having such a program recorded thereon.

[0112] In addition, the present disclosure also includes forms obtained by applying various modifications to each embodiment that a person skilled in the art may conceive, or forms realized by arbitrarily combining the components and functions of each embodiment within the scope that does not deviate from the spirit of the present disclosure. [Explanation of symbols]

[0113] 1. Lighting control system 10. Lighting Equipment 11 Information terminal 12 Control section 13 Information acquisition department

Claims

1. an information acquisition unit that acquires control condition information indicating a control condition of the lighting device; and a control unit that reproduces a natural light environment at a position or season specified from the control condition information acquired by the information acquisition unit by controlling a light color, intensity, light distribution, and irradiation direction of the illumination light emitted by the lighting device based on the control condition information acquired by the information acquisition unit. Lighting control system.

2. the information acquisition unit has a GPS function and acquires, as the control condition information, information on a current location of a device that has the information acquisition unit; The control unit reproduces the environment of the natural light at a position indicated by the information of the current position acquired by the information acquisition unit.

2. A lighting control system as claimed in claim 1.

3. the information acquisition unit acquires, as the control condition information, information on an arbitrary location selected by a user or information on an arbitrary season; The control unit reproduces the environment of the natural light at the position indicated by the arbitrary position information acquired by the information acquisition unit or at the season indicated by the arbitrary season information.

2. A lighting control system as claimed in claim 1.

4. The information acquisition unit acquires weather information as the control condition information, The control unit reproduces the environment of the natural light in the weather indicated by the weather information acquired by the information acquisition unit. A lighting control system according to any one of claims 1 to 3.

5. The information acquisition unit acquires information manually input by a user. A lighting control system according to any one of claims 1 to 4.

6. The information acquisition unit acquires automatically input information. A lighting control system according to any one of claims 1 to 4.

7. At least one of the light color, the intensity, the light distribution, and the irradiation direction of the illumination light emitted by the illumination device controlled by the control unit is changeable by a user. A lighting control system according to any one of claims 1 to 6.

8. the control unit changes an intensity of the illumination light emitted by the illumination device in accordance with an amount of light irradiation to the user that is determined from position information of the user. A lighting control system according to any one of claims 1 to 7.

9. an information acquisition step of acquiring control condition information indicating a control condition of the lighting device; and a control step of controlling a light color, a light intensity distribution, and an irradiation direction of the illumination light emitted by the lighting device based on the control condition information acquired in the information acquisition step, thereby reproducing an environment of natural light in a position or season specified from the control condition information acquired in the information acquisition step. Lighting control methods.

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