Illumination device and illumination system

Abstract

To control an illumination device in a mode appropriate for a user.SOLUTION: An illumination device according to the present application (for example, a task light) has a light emitting unit, a receiving unit, and an output unit. The light emitting unit illuminates a user's working area. The receiving unit receives the details of control of illumination from a user terminal used by the user. The output unit outputs control information for controlling illumination provided by another illumination device (for example, an ambient light) illuminating a predetermined area including the working area, on the basis of the details of control received by the receiving unit.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] FIELD OF THE INVENTION Embodiments of the present invention relate to a lighting device and a lighting system. [Background technology]

[0002] Conventionally, in order to control multiple lighting devices, a technique is known in which user setting values, which are setting values ​​related to the lighting of a space, are acquired from multiple terminal devices, and the operating setting values ​​of the lighting devices are set to the average value of the multiple user setting values. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-164933 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above-mentioned techniques may not always control the lighting device in a manner appropriate for the user.

[0005] For example, in the above-mentioned technology, the lighting equipment that supplies light to a space is merely set to an average value of multiple user settings, and it may not be said that the lighting equipment is controlled in a manner appropriate for the user. In addition, in recent years, a task-ambient lighting system has been proposed that reduces the amount of electricity required for lighting by using a lighting device that illuminates the user's work area (task light) and a lighting device that illuminates a predetermined area including the work area (ambient light). In such a task-ambient lighting system, a control method for achieving appropriate lighting is required.

[0006] The problem to be solved by the present invention is to control a lighting device in a manner appropriate for a user. [Means for solving the problem]

[0007] The lighting device according to the embodiment is characterized by having a light-emitting unit that illuminates a user's work area, a receiving unit that receives lighting control content from a user terminal used by the user, and an output unit that outputs control information for controlling lighting by other lighting devices that illuminate a specified area including the work area based on the control content received by the receiving unit. [Effects of the Invention]

[0008] According to the present invention, it is possible to control the lighting device in a manner appropriate for the user. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram illustrating an example of a lighting system according to an embodiment. [Figure 2] FIG. 2 is a diagram showing an example of a lighting system 1 according to the first embodiment. [Figure 3] FIG. 3 is a diagram showing an example of a lighting system 2 according to the second embodiment. [Figure 4] FIG. 4 is a diagram showing an example of a screen of the setting device 60 according to the embodiment. [Figure 5] FIG. 5 is a diagram showing an example of the configuration of the first lighting device 10 according to the embodiment. [Figure 6] FIG. 6 is a diagram illustrating an example of the usage history storage unit 141 according to the embodiment. [Figure 7] FIG. 7 is a diagram showing an example of the configuration of an information processing device 200 according to the embodiment. [Figure 8] FIG. 8 is a diagram illustrating an example of the lighting device information storage unit 221 according to the embodiment. [Figure 9] FIG. 9 is a diagram illustrating an example of the user information storage unit 222 according to the embodiment. [Figure 10] FIG. 10 is a flowchart (1) showing an example of the procedure of information processing according to the embodiment. [Figure 11] FIG. 11 is a flowchart (2) showing an example of the procedure of information processing according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, a detailed description will be given of a form for carrying out a lighting device and a lighting system according to the present application (hereinafter referred to as "embodiment") with reference to the drawings. Note that the lighting device and the lighting system according to the present application are not limited to the embodiment. Furthermore, the same components in the following embodiments are given the same reference numerals, and redundant description will be omitted.

[0011] An illumination device (first illumination device 10) according to the embodiment described below includes a light-emitting unit 11, a receiving unit 151, and an output unit 153. The light-emitting unit 11 illuminates a user's work area. The receiving unit 151 receives lighting control information from a user terminal 100 used by the user. The output unit 153 outputs control information for controlling lighting by another illumination device (second illumination device 20) that illuminates a predetermined area including the work area, based on the control information received by the receiving unit 151.

[0012] Furthermore, the output unit 153 according to the embodiment described below outputs control information for controlling illumination by the second illumination device 20 when the radio wave intensity received by the first illumination device 10 is equal to or greater than a predetermined threshold.

[0013] Furthermore, the output unit 153 according to the embodiment described below outputs control information indicating the lighting settings of the light-emitting unit 11 based on the control content.

[0014] The first lighting device 10 according to the embodiment described below also includes a detection unit 152. The detection unit 152 detects the illuminance of the space in which the first lighting device 10 is installed. The output unit 153 outputs control information for controlling lighting by the first lighting device 10 based on the control content and the illuminance.

[0015] Moreover, the output unit 153 according to the embodiment described below outputs control information for controlling the illumination by the first illumination device 10 so that the illuminance is equal to or greater than the lower limit value.

[0016] Moreover, the output unit 153 according to the embodiment described below outputs control information for controlling the illumination by the first illumination device 10 so that the illuminance is equal to or less than the upper limit value.

[0017] Furthermore, the output unit 153 according to the embodiment described below outputs control information when the illuminance of the light-emitting unit 11 changes by a predetermined threshold or more.

[0018] Furthermore, the receiving unit 151 according to the embodiment described below further receives information indicating a user. Furthermore, the output unit 153 outputs control information based on the information about the user and the control content.

[0019] Moreover, the output unit 153 according to the embodiment described below outputs control information to the second illumination device 20.

[0020] Moreover, the output unit 153 according to the embodiment described below outputs control information to a control device (for example, the server 30 or the controller 40) that controls the illumination by the second illumination device 20.

[0021] Furthermore, the first lighting device 10 according to the embodiment described below is portable.

[0022] Furthermore, the lighting system according to the embodiment described below includes a first lighting device 10 that illuminates a user's work area, and a second lighting device 20 that illuminates a predetermined area including the work area. The lighting system also includes an acquisition unit 231 and a lighting control unit 232. The acquisition unit 231 acquires the lighting mode of the first lighting device 10 that corresponds to the second lighting device 20 to be controlled. The lighting control unit 232 controls the lighting by the second lighting device 20 based on the lighting mode acquired by the acquisition unit 231.

[0023] Furthermore, the lighting control unit 232 according to the embodiment described below controls the lighting by the second lighting device 20 so that the illuminance by the first lighting device 10 and the second lighting device 20 in the space in which the first lighting device 10 and the second lighting device 20 are installed is equal to or greater than a lower limit value.

[0024] Furthermore, the lighting control unit 232 according to the embodiment described below controls the lighting by the second lighting device 20 so that the illuminance by the first lighting device 10 and the second lighting device 20 in the space in which the first lighting device 10 and the second lighting device 20 are installed is equal to or lower than an upper limit value.

[0025] Furthermore, the acquisition unit 231 according to the embodiment described below further acquires information indicating a user who uses the first lighting device 10 corresponding to the second lighting device 20. Furthermore, the lighting control unit 232 controls the lighting by the second lighting device 20 based on the lighting mode and the information on the user.

[0026] Furthermore, the information processing device 200 (for example, the server 30 or the controller 40) according to the embodiment described below includes an acquisition unit 231 and a lighting control unit 232. The acquisition unit 231 acquires information about an image captured of a space in which a first lighting device 10 that illuminates a user's work area and a second lighting device 20 that illuminates a predetermined area including the work area are installed. The lighting control unit 232 controls the lighting by the first lighting device 10 or the second lighting device 20 based on the information acquired by the acquisition unit 231.

[0027] Furthermore, the lighting control unit 232 according to the embodiment described below controls the lighting by the first lighting device 10 or the second lighting device 20 based on information about a user present in the space.

[0028] Furthermore, the lighting control unit 232 according to the embodiment described below controls the lighting by the first lighting device 10 or the second lighting device 20 based on the number of users present in the space.

[0029] Furthermore, the lighting control unit 232 according to the embodiment described below controls the lighting by the first lighting device 10 or the second lighting device 20 based on the work being performed by a user in the space.

[0030] Furthermore, the illumination control unit 232 according to the embodiment described below controls the illumination by the first illumination device 10 or the second illumination device 20 based on the illuminance of the space.

[0031] Furthermore, the illumination control unit 232 according to the embodiment described below controls the illumination by the first illumination device 10 or the second illumination device 20 so that the change in illuminance in the space is equal to or less than a predetermined threshold value.

[0032] Furthermore, the lighting control unit 232 according to the embodiment described below controls the lighting by the first lighting device 10 or the second lighting device 20 based on the type of space.

[0033] Furthermore, the lighting control unit 232 according to the embodiment described below controls the lighting by the first lighting device 10 or the second lighting device 20 so that the difference between the illuminance of the space and the illuminance of another space adjacent to the space is equal to or less than a predetermined threshold value.

[0034] (Example of a lighting system) An example of a lighting system will be described using Fig. 1. Fig. 1 is a diagram showing an example of a lighting system according to an embodiment. In the example shown in Fig. 1, the lighting system includes a first lighting device 10, a second lighting device 20, a server 30, a controller 40, a photographing device 50, a setting device 60, and a user terminal 100. The first lighting device 10, the second lighting device 20, the server 30, the controller 40, the photographing device 50, the setting device 60, and the user terminal 100 are connected to each other via a predetermined communication network (not shown) so as to be able to communicate with each other via wired or wireless communication.

[0035] The lighting system shown in FIG. 1 may include a plurality of first lighting devices 10, a plurality of second lighting devices 20, a plurality of servers 30, a plurality of controllers 40, a plurality of photographing devices 50, a plurality of setting devices 60, and a plurality of user terminals 100.

[0036] 1 can employ a communication method such as wireless communication, infrared communication, etc. For wireless communication, a communication standard for any communication distance can be employed, such as a wide area network (WAN), a metropolitan area network (MAN), a local area network (LAN), a personal area network (PAN), or short-distance wireless communication.

[0037] 1 is a task light that illuminates a user's work area. For example, the first lighting device 10 is portable and can be carried by the user and installed at any location (for example, on a desk where the user works) for use. The first lighting device 10 includes a light-emitting unit 11 that illuminates the user's work area and a communication unit 13, and controls the light-emitting unit 11 based on lighting control information received by the communication unit 13 from the user terminal 100, the server 30, the controller 40, the setting device 60, etc.

[0038] 1 is an ambient light that is installed in the same space as the first lighting device 10 and illuminates a predetermined area including a user's work area. For example, the second lighting device 20 is a lighting device that is fixed to a ceiling or wall surface in a building. The second lighting device 20 has a light-emitting unit that illuminates the predetermined area and a communication unit, and controls the light-emitting unit based on lighting control content received by the communication unit from the user terminal 100, the server 30, the controller 40, the setting device 60, etc.

[0039] 1 is a server device that manages information related to the first lighting device 10, the second lighting device 20, etc. For example, the server 30 controls the lighting of the first lighting device 10 or the second lighting device 20 based on the illuminance of the space in which the first lighting device 10 and the second lighting device 20 are installed. The server 30 is a server device that can communicate with the first lighting device 10, the second lighting device 20, the controller 40, the photographing device 50, the setting device 60, etc. via a predetermined gateway (not shown), and may be realized by, for example, a cloud system.

[0040] 1 is a parent device (area controller) of the first lighting device 10 and the second lighting device 20, and is a control device that controls the lighting of the first lighting device 10 and the second lighting device 20. For example, the controller 40 controls the lighting of the first lighting device 10 and the second lighting device 20 based on lighting control content received from the user terminal 100, the server 30, the setting device 60, etc.

[0041] 1 is, for example, a visible light camera that captures an image of a space in which the first lighting device 10 and the second lighting device 20 are installed. Note that the imaging device 50 may be, for example, a visible light camera that operates integrally with the second lighting device 20, or may be a visible light camera that operates integrally with various types of ceiling lights different from the second lighting device 20.

[0042] 1 is, for example, a tablet terminal, which receives lighting control details for the first lighting device 10 and the second lighting device 20 from a user and transmits the control details to the first lighting device 10, the second lighting device 20, the controller 40, etc. The setting device 60 also displays information (for example, power consumption) related to the first lighting device 10 and the second lighting device 20 on a screen.

[0043] The user terminal 100 shown in FIG. 1 is, for example, a smartphone used by a user, and receives lighting control content for the first lighting device 10 and the second lighting device 20 from the user and transmits the control content to the first lighting device 10, the second lighting device 20, the controller 40, etc.

[0044] (First embodiment) A first embodiment of the present invention will be described with reference to Fig. 2. Fig. 2 is a diagram showing an example of a lighting system 1 according to the first embodiment.

[0045] In the following description, user terminals 100-1 to 100-N (N is any natural number) will be described according to the user using user terminal 100. For example, user terminal 100-1 is the user terminal 100 used by a user (user U1) identified by user ID "UID#1". In the following description, user terminals 100-1 to 100-N will be referred to as user terminal 100 when there is no particular distinction to be made. In the following description, user terminal 100 may be considered to be the same as the user. In other words, in the following, user can also be read as user terminal 100.

[0046] In the following description, it is assumed that a user performs a predetermined task (job, etc.) in a work area (desk, etc.) in space #1 (office, etc.) where second lighting device 20 is installed. In the following description, it is assumed that first lighting devices 10-1 to 10-N (N is any natural number) are stored in a predetermined storage location in space #1. In the following description, first lighting devices 10-1 to 10-N will be referred to as first lighting device 10 when there is no need to distinguish between them.

[0047] In the following description, it is assumed that the second lighting device 20 illuminates the area AR1 in the space #1 based on the control content received from the controller 40.

[0048] First, a user working in space #1 carries the first lighting device 10 to be used by the user from a storage location where the first lighting device 10 is stored and installs it in the work area. The first lighting device 10 then receives the lighting control content via the user terminal 100 (step Sa1). For example, user U1 installs the first lighting device 10-1 in the work area AR11. The user U1 then wirelessly connects the first lighting device 10-1 to the user terminal 100-1. As a specific example, the user U1 pairs the first lighting device 10-1 with the user terminal 100-1 via wireless LAN, Bluetooth (registered trademark), or the like, and after the pairing, sets the illuminance of the first lighting device 10-1 via the user terminal 100-1.

[0049] In this case, the first lighting device 10-1 receives the control content via the user terminal 100-1. For example, when the first lighting device 10-1 receives information indicating the light intensity (dimming level) from the paired user terminal 100-1, the first lighting device 10-1 illuminates the area AR11, which is the work area of ​​the user U1, at the received dimming level.

[0050] In addition, the first lighting device 10-1 may illuminate the area AR11, which is the work area of ​​user U1, based on the control content received from the user terminal 100-1 among the user terminals 100 that receives the highest radio wave intensity (in other words, the closest user terminal 100-1).

[0051] Similarly, user U2 installs first lighting device 10-2 in work area AR12 and controls the lighting by first lighting device 10-2 via user terminal 100-2. In this way, first lighting devices 10-1, 10-2, ... are installed in the work areas of each user, and the lighting is controlled by user terminal 100 corresponding to each user.

[0052] Next, the first lighting device 10-1 detects the illuminance of the space #1 (step Sa2). For example, the first lighting device 10-1 detects the illuminance of the space #1 illuminated by the first lighting device 10-1 itself, the other first lighting device 10, and the second lighting device 20, using an illuminance sensor included in the first lighting device 10-1.

[0053] Next, the first lighting device 10-1 outputs control information for controlling the lighting by the second lighting device 20 to the controller 40 based on the control content of the first lighting device 10-1 itself and the illuminance of space #1 (step Sa3). For example, the first lighting device 10-1 outputs control information (e.g., information indicating the dimming level to be output by the second lighting device 20) for controlling the lighting by the second lighting device 20 for which the radio wave intensity received by the first lighting device 10-1 itself is equal to or higher than a predetermined threshold. As a specific example, the first lighting device 10-1 outputs control information for controlling the lighting by the second lighting device 20 for which the radio wave intensity received by the first lighting device 10-1 itself is the highest (in other words, the closest second lighting device 20) so that the illuminance of space #1 is equal to or higher than a lower limit (e.g., equal to or higher than a value set to ensure user comfort) and equal to or lower than an upper limit (e.g., equal to or lower than a value set from the perspective of power saving).

[0054] Next, the controller 40 controls the illumination by the second illumination device 20 (step Sa4). For example, the controller 40 controls the second illumination device 20 based on the control information received from the first illumination device 10-1.

[0055] The controller 40 may control the lighting by the second lighting device 20 based on a plurality of pieces of control information received from each of the plurality of first lighting devices 10. For example, the controller 40 controls the lighting by the second lighting device 20 based on the control information that causes the second lighting device 20 to output the highest dimming level among the received control information.

[0056] As described above, the first lighting device 10 according to the first embodiment outputs control information for controlling lighting by the second lighting device 20, based on the control content received by the first lighting device 10 from the user terminal 100. This allows the first lighting device 10 to set the illuminance of the space in which the first lighting device 10 and the second lighting device 20 are installed to a predetermined value, thereby enabling the lighting devices to be controlled in a manner appropriate for the user.

[0057] Furthermore, the first lighting device 10 according to the first embodiment can set the illuminance of the entire space to a predetermined value simply by the user controlling the device itself, thereby reducing the user's effort in the task-ambient lighting method.

[0058] (Second embodiment) Next, a second embodiment of the present invention will be described with reference to Fig. 3. Fig. 3 is a diagram showing an example of a lighting system 2 according to the second embodiment.

[0059] In the following description, it is assumed that a user performs a predetermined task in a work area in space #1 in which second illumination device 20 is installed.

[0060] In the following description, it is assumed that the second lighting device 20 illuminates the area AR1 in the space #1 based on the control content received from the server 30.

[0061] In the following description, it is assumed that the first lighting device 10 illuminates the work areas (areas AR11, AR12, . . . ) of the users by the same process as step Sa1 in the first embodiment.

[0062] First, the image capturing device 50 installed in the space #1 captures an image #1 of the space #1 (step Sb1). For example, the image capturing device 50 captures the image #1 of the space #1 illuminated by the first lighting device 10 and the second lighting device 20.

[0063] Next, the server 30 acquires information about image #1 from the photographing device 50 (step Sb2). For example, the server 30 acquires image #1 and the analysis result of image #1 by the photographing device 50. To give a specific example, the server 30 acquires, as the analysis result, the illuminance of the entire space #1 illuminated by the first lighting device 10 and the second lighting device 20 (for example, the average illuminance of the entire space #1). Note that the server 30 may acquire only image #1 from the photographing device 50, analyze image #1 with its own device, and obtain the illuminance of space #1.

[0064] Next, the server 30 controls the lighting by the second lighting device 20 based on the illuminance of the space #1 (step Sb3). For example, the server 30 controls the lighting by the second lighting device 20 so that the illuminance of the space #1 is equal to or greater than a lower limit and equal to or less than an upper limit.

[0065] Next, the server 30 controls the lighting by the first lighting device 10 based on the illuminance of the space #1 (step Sb4). For example, the server 30 controls the lighting by the first lighting device 10-1 so that the illuminance of the space within a predetermined range from the first lighting device 10-1 (for example, the space including the area AR1 and its periphery), illuminated by the first lighting device 10-1 and the second lighting device 20, is equal to or greater than a lower limit and equal to or less than an upper limit.

[0066] As described above, the server 30 according to the second embodiment controls the lighting by the first lighting device or the second lighting device based on information about an image captured of the space in which the first lighting device 10 and the second lighting device 20 are installed. This allows the server 30 according to the second embodiment to set the illuminance of the space in which the first lighting device 10 and the second lighting device 20 are installed to a predetermined value, thereby controlling the lighting devices in a manner appropriate for the user.

[0067] Furthermore, the server 30 according to the second embodiment can set the illuminance of the entire space to a predetermined value without the user having to perform any control over the first lighting device 10 and the second lighting device 20, thereby reducing the burden on the user in the task-ambient lighting system.

[0068] (Other embodiments) The above-described embodiment is merely an example, and the first lighting device 10, the server 30, and the lighting system may perform various processes using various information. In this regard, examples will be listed below.

[0069] [Regarding control information output] 2, the first lighting device 10-1 may output control information for controlling the lighting by the second lighting device 20 to an arbitrary device. For example, the first lighting device 10-1 outputs control information for controlling the lighting by the second lighting device 20 to the second lighting device 20. Then, the second lighting device 20 controls the lighting of its own device based on the control information received from the first lighting device 10-1.

[0070] Furthermore, the first lighting device 10-1 outputs control information for controlling the lighting by the second lighting device 20 to the server 30 that controls the lighting of the space #1. Then, the server 30 controls the second lighting device 20 based on the control information received from the first lighting device 10-1.

[0071] [Regarding control information] 2, first lighting device 10-1 may output control information indicating the lighting setting of the first lighting device 10-1 based on the control content received from user terminal 100-1. For example, first lighting device 10-1 outputs control information indicating the dimming level of the first lighting device 10-1 to controller 40. Then, controller 40 controls the lighting by second lighting device 20 based on the dimming level indicated in the control information so that the illuminance of space #1 is equal to or greater than a lower limit and equal to or less than an upper limit.

[0072] To give a specific example, when there are multiple second lighting devices 20 that can communicate with the controller 40, the controller 40 selects a second lighting device 20 to be controlled. Then, the controller 40 identifies a first lighting device 10 that corresponds to the selected second lighting device 20. For example, the controller 40 instructs the second lighting device 20 to scan for wireless communication such as wireless LAN or Bluetooth. In such a case, the second lighting device 20 scans for wireless communication and identifies a first lighting device 10 whose radio wave intensity is equal to or greater than a predetermined threshold as the corresponding first lighting device 10. Then, the second lighting device 20 notifies the controller 40 of the identified first lighting device 10.

[0073] Meanwhile, the controller 40 identifies the dimming level of the notified first lighting device 10. For example, the controller 40 may query each first lighting device 10 to acquire the dimming level, or may store the latest dimming level acquired from each first lighting device 10. The controller 40 may then determine the dimming level of the second lighting device 20 based on the dimming level of each first lighting device 10, and transmit control information to the second lighting device 20 to perform lighting at the determined dimming level.

[0074] The above-described processing by the controller 40 (hereinafter referred to as central control processing) may be executed, for example, autonomously by the second lighting device 20 or by the server 30. Such central control processing may be executed at any timing. For example, the controller 40 may execute the processing every time it receives control information from the first lighting device 10, or may execute the processing repeatedly at predetermined time intervals.

[0075] [Regarding output of control information according to changes in illuminance] 2, first lighting device 10-1 may output control information when its illuminance (dimming level) changes by a predetermined threshold or more. For example, first lighting device 10-1 outputs control information when its dimming level changes by a predetermined threshold or more based on control content received from user terminal 100-1.

[0076] Note that first lighting device 10-1 may output control information when the illuminance of space #1 changes by a predetermined threshold or more due to a change in the dimming level of its own lighting device or a change in the dimming level of second lighting device 20.

[0077] Furthermore, first lighting device 10-1 may output control information when the illuminance acquired by the illuminance sensor changes by a predetermined threshold or more. For example, first lighting device 10-1 may output control information when a change in illuminance due to external light near a window or the like exceeds a predetermined threshold (more specifically, when the ambient illuminance drops by a predetermined threshold or more within 10 seconds due to the influence of clouds or the like).

[0078] [Regarding output of control information according to the user] 2, the first lighting device 10-1 may receive information indicating the user U1 (e.g., identification information of the user U1) in addition to the lighting control content. Then, the first lighting device 10-1 may acquire information about the user U1 (e.g., a usage history of the first lighting device 10) stored in a storage unit of the first lighting device 10-1, the server 30, the controller 40, etc. based on the identification information of the user U1, and output control information based on the acquired information and the control content. For example, the first lighting device 10-1 outputs control information for controlling the lighting by the second lighting device 20 based on the lighting preference of the user U1 (e.g., preference for darker lighting, preference for brighter lighting, preference for a specific color temperature) estimated based on the usage history of the first lighting device 10.

[0079] The first lighting device 10-1 may output control information for controlling lighting by the second lighting device 20 using a model that has learned the user's lighting preferences. For example, when space #1 is illuminated at a predetermined illuminance and the user controls the second lighting device 20 to change the illuminance, the model is trained using the illuminance as a negative example. On the other hand, when space #1 is illuminated at a predetermined illuminance and the user does not control the second lighting device 20 to change the illuminance, the model is trained using the illuminance as a positive example. Then, the first lighting device 10-1 outputs control information for controlling lighting by the second lighting device 20 using the model trained in this way.

[0080] Here, when control is performed taking user preferences into consideration, control taking into consideration the preferences of multiple users may be performed in central control processing by the controller 40 or the like. For example, the controller 40 may identify a user operating the first lighting device 10 corresponding to the second lighting device 20 to be controlled (in other words, a user of the user terminal 100 paired with the first lighting device 10) and acquire information about the identified user (for example, from the user terminal 100 used by the identified user). The controller 40 may then determine the illuminance of the second lighting device 20 based on the identified user's lighting preferences, which may be registered or estimated in advance, and control the lighting by the second lighting device 20 to illuminate at the determined illuminance. To give a more specific example, the controller 40 may count the number of users who prefer brighter lighting, the number of users who prefer normal lighting, and the number of users who prefer darker lighting, and control the second lighting device 20 to be brighter when the number of users who prefer brighter lighting is the largest or exceeds the majority.

[0081] Furthermore, in central control processing by the controller 40 or the like, control information for controlling the lighting by the second lighting device 20 may be output using the above model that has learned the user's preferences regarding lighting.

[0082] [Regarding control in lighting system 1] 2, the controller 40 may control the illumination by the second illumination device 20 based on the illumination mode by the first illumination device 10. For example, the controller 40 acquires illumination modes, such as the control content of the first illumination device 10-1 and the illuminance detected by the first illumination device 10-1, from the first illumination device 10-1. Then, the controller 40 controls the illumination by the second illumination device 20 based on the illumination mode so that the illuminance in space #1 is equal to or greater than a lower limit and equal to or less than an upper limit.

[0083] Furthermore, the controller 40 may acquire information indicating the user U1 in addition to the lighting mode of the first lighting device 10-1. The controller 40 then acquires information about the user U1 stored in a storage unit of the controller 40, the first lighting device 10, the server 30, etc., and controls the lighting by the second lighting device 20 based on the acquired information and the lighting mode of the first lighting device 10-1.

[0084] The above-described processing by the controller 40 may be executed by the server 30.

[0085] [User-specific control of lighting system 2] In the example of FIG. 3 , the server 30 may control the lighting by the first lighting device 10 or the second lighting device 20 based on information about users present in space #1 recognized from image #1 using any image recognition technology. For example, the server 30 controls the lighting by the first lighting device 10 or the second lighting device 20 based on the number of users present in space #1. To give a specific example, the server 30 controls the illuminance of space #1 to be higher as the number of users present in space #1 increases. Furthermore, the server 30 controls the illuminance of space #1 to be lower as the number of users present in space #1 decreases.

[0086] Furthermore, the server 30 controls the lighting by the first lighting device 10 or the second lighting device 20 based on the work content of the user in space #1. For example, when the user is working using a projector, the server 30 controls the illuminance of space #1 to be lower than a lower limit. To give a specific example, the server 30 controls the first lighting device 10 so that the illuminance of the space around the first lighting device 10 (in other words, the desk surface) in space #1 is equal to or higher than the lower limit, and controls the second lighting device 20 so that the illuminance of the other spaces is lower than the lower limit.

[0087] Furthermore, when a user is working with paper materials, the server 30 controls the illuminance of the space #1 so that it is higher than the upper limit value.

[0088] Furthermore, the server 30 may identify a user present in the space #1 and, based on information about the identified user, control the lighting by the first lighting device 10 or the second lighting device 20. For example, the server 30 may determine the illuminance of the second lighting device 20 based on the lighting preferences of the identified user, and control the lighting by the second lighting device 20 to illuminate at the determined illuminance.

[0089] [Changes in illuminance between the ceiling space and the work space] In the example of FIG. 3, the server 30 may control the illumination by the first lighting device 10 or the second lighting device 20 so that the change in illuminance in the space #1 is equal to or less than a predetermined threshold.

[0090] For example, the difference in illuminance between the area illuminated by the first lighting device 10 (i.e., the area near the user's hands where the user is working) and the area illuminated by the second lighting device 20 may exceed a predetermined threshold. To give a specific example, there may be a case where a large number of first lighting devices 10 are installed in space #1, and sufficient light is obtained in the work area and the surrounding space #11 (work space). Therefore, if the illuminance of the second lighting device 20 is reduced, another space #12 (ceiling-side space) closer to the ceiling than space #11 may become significantly dark. In such a case, the difference in illuminance between the space #11 near the user's hands and the space #12 closer to the ceiling may exceed the predetermined threshold, potentially worsening the atmosphere of space #1. Therefore, the server 30 controls the first lighting device 10-1 to reduce the illuminance of space #11 until the difference in illuminance between space #11 and space #12 becomes less than the predetermined threshold. Alternatively, the server 30 increases the illuminance of the second lighting device 20 until the difference in illuminance between the space #11 and the space #12 becomes less than a predetermined threshold.

[0091] If the illuminance of space #12 is higher than the illuminance of space #11, the server 30 controls the first lighting device 10-1 to increase the illuminance of space #11 until the difference in illuminance between space #11 and space #12 becomes less than a predetermined threshold. Alternatively, the server 30 controls the second lighting device 20 to decrease the illuminance of space #12 until the difference in illuminance between space #11 and space #12 becomes less than a predetermined threshold.

[0092] [Lighting according to the type of space] 3, the server 30 may control the lighting by the first lighting device 10 or the second lighting device 20 based on the type of space #1. For example, if space #1 is a conference room (e.g., a conference area where a projector is installed), the server 30 controls the first lighting device 10 so that the illuminance of the space around the first lighting device 10 in space #1 is equal to or higher than a lower limit, and controls the second lighting device 20 so that the illuminance of the other spaces is lower than the lower limit.

[0093] [Lighting appropriate for adjacent spaces] 3 , the server 30 may control the lighting by the first lighting device 10 or the second lighting device 20 so that the difference between the illuminance of space #1 and the illuminance of another space adjacent to space #1 is equal to or less than a predetermined threshold. For example, if the illuminance of space #1 is lower than the illuminance of the other space adjacent to space #1 by a predetermined threshold or more, the server 30 controls the first lighting device 10 or the second lighting device 20 to increase the illuminance of space #1 until the difference with the illuminance of the other space becomes less than the predetermined threshold. Furthermore, if the illuminance of space #1 is higher than the illuminance of the other adjacent space by a predetermined threshold or more, the server 30 controls the first lighting device 10 or the second lighting device 20 to decrease the illuminance of space #1 until the difference with the illuminance of the other space becomes less than the predetermined threshold.

[0094] [Regarding output of information to the setting device 60] The lighting systems 1 and 2 may output information about the first lighting device 10 and the second lighting device 20 installed in space #1 to a setting device 60 used by a manager of space #1 or the like. Here, the information output to the setting device 60 will be described with reference to Fig. 4. Fig. 4 is a diagram showing an example of a screen of the setting device 60 according to the embodiment.

[0095] 4, the setting device 60 displays a screen C1 showing a plan view (floor map) of space #1 as seen from above. For example, the setting device 60 displays icons corresponding to the second lighting devices 20A-20L installed in space #1 at their respective positions (e.g., positions designated in advance by an administrator, etc.). The setting device 60 also displays an icon corresponding to the first lighting device 10 at the position of the first lighting device 10 arbitrarily installed by a user in space #1. For example, the setting device 60 displays the icon of the first lighting device 10 at a position estimated based on the radio wave intensity of the first lighting device 10 received by the second lighting devices 20A-20L or the radio wave intensity of the second lighting devices 20A-20L received by the first lighting device 10.

[0096] The setting device 60 may display on the screen C1 location information of the user terminal 100 (in other words, the user) estimated based on the radio wave intensity received by the first lighting device 10 or the second lighting devices 20A-20L from the user terminal 100. For example, the setting device 60 may display on the screen C1 information such as whether or not the user is located within a predetermined range from the first lighting device 10 or the second lighting devices 20A-20L, and the number of users located there.

[0097] The setting device 60 may also display the lighting status (e.g., dimming level) of the first lighting device 10 and the second lighting devices 20A-20L on the screen C1. The setting device 60 may also receive information on the control of lighting by the first lighting device 10 and the second lighting devices 20A-20L from a manager or the like on the screen C1, and control the lighting by the first lighting device 10 and the second lighting devices 20A-20L based on the received information.

[0098] Furthermore, the setting device 60 may display on the screen C1 information according to the amount of time that the first lighting device 10 has been used. For example, the setting device 60 may display information indicating whether or not the first lighting device 10 needs to be replaced.

[0099] The screen C11 may be output to the setting device 60 by the server 30 or may be output by the controller 40.

[0100] [Regarding the manner in which illuminance is changed by the second lighting device 20] A sudden change in illuminance by the second lighting device 20 may cause the entire space #1 to become brighter, causing the user to suddenly feel dazzled. Alternatively, the entire space #1 may become darker, causing the user to suddenly lose sight of objects in the space #1. In such cases, the user's work, walking, etc. may be hindered and dangerous. Therefore, when the second lighting device 20 changes its own illuminance based on the control information, it may change the illuminance over a predetermined time period (i.e., change the illuminance slowly). Alternatively, the first lighting device 10, the server 30, the controller 40, etc. may output a control device to the second lighting device 20 that controls the change in illuminance over a predetermined time period.

[0101] [Regarding control of turning on and off the first lighting device 10] 2, first lighting device 10-1 may have a motion sensor. When no user is present around first lighting device 10-1 (for example, when user U1 leaves his / her seat), first lighting device 10-1 may turn off its own illumination. In this case, first lighting device 10-1 may output control information for controlling illumination by second lighting device 20 based on the illuminance of space #1 after first lighting device 10-1 has been turned off.

[0102] Furthermore, after the first lighting device 10-1 is turned off, if it detects that a user is present around the first lighting device 10-1 (for example, when the user U1 returns to his / her seat), the first lighting device 10-1 may turn on the lighting of the device itself (for example, turn on the lighting based on the control content received from the user terminal 100-1 before the user U1 leaves his / her seat). In this case, the first lighting device 10-1 may output control information for controlling the lighting by the second lighting device 20 based on the illuminance of the space #1 after the first lighting device 10-1 is turned on.

[0103] 3, the server 30 may acquire, as information about image #1, information indicating whether a user is present around the first lighting device 10. The server 30 may then identify a first lighting device 10 around which no user is present, control the first lighting device 10 to be turned off, and control the lighting by the second lighting device 20 based on the illuminance of space #1 after the first lighting device 10 is turned off.

[0104] Furthermore, if the server 30 acquires information indicating that a user is present around the first lighting device 10 that has been turned off, the server 30 may control the first lighting device 10 to turn on (for example, control the first lighting device 10 to turn on based on the dimming level before the first lighting device 10 was turned off), and may control the lighting by the second lighting device 20 based on the illuminance of the space #1 after the first lighting device 10 has been turned on.

[0105] [Regarding output of information related to the first lighting device 10] The server 30 and the controller 40 may output information about the first lighting device 10 installed in space #1 to the setting device 60, etc. For example, the server 30 and the controller 40 may output information indicating whether or not the first lighting device 10 needs to be repaired or replaced to the setting device 60, etc., based on the usage history of the first lighting device 10 stored in the server 30 and the controller 40.

[0106] [Regarding the fixed first lighting device 10] The first lighting device 10 may not be portable and may be fixed to a user's work area (e.g., a desk). In such a case, the controller 40 stores in advance in a storage unit thereof the identification information and location information of the first lighting device 10 and the second lighting device 20. When the controller 40 receives control information from the first lighting device 10, the controller 40 identifies the second lighting device 20 to be controlled (e.g., the second lighting device 20 installed closest to the first lighting device 10) based on the location information of the first lighting device 10, and controls the identified second lighting device 20 based on the control information.

[0107] (An example of the first lighting device) Next, the configuration of the first lighting device 10 will be described with reference to Fig. 5. Fig. 5 is a diagram showing an example of the configuration of the first lighting device 10 according to the embodiment. For example, the first lighting device 10 is a portable task light. As shown in Fig. 5, the first lighting device 10 includes a light-emitting unit 11, a sensor unit 12, a communication unit 13, a storage unit 14, and a control unit 15.

[0108] [Regarding the light-emitting unit 11] The light emitting unit 11 illuminates a predetermined area (for example, a user's work area). For example, the light emitting unit 11 is controlled by the control unit 15 in terms of its on / off state, intensity when lit, etc.

[0109] [Regarding the sensor unit 12] The sensor unit 12 detects information relating to the situation of the target illuminated by the light emitting unit 11. For example, the sensor unit 12 has an illuminance sensor that detects illuminance, and is controlled by a detection unit 152 described later.

[0110] The sensor unit 12 may include an image sensor, a human presence sensor, an environmental sensor that detects the weather in the lighting environment, etc. The sensor unit 12 may also include multiple sensors. The multiple sensors may have the same or different detection methods and / or detection capabilities.

[0111] [Regarding Communication Section 13] The communication unit 13 is realized by, for example, a network interface card (NIC), etc. The communication unit 13 transmits and receives information to and from the second lighting device 20, the server 30, the controller 40, the photographing device 50, the setting device 60, the user terminal 100, etc. via a communication network such as Ethernet (registered trademark) or a wireless LAN.

[0112] [Regarding the storage unit 14] The storage unit 14 is realized by, for example, a semiconductor memory element such as a RAM (Random Access Memory) or a flash memory, or a storage device such as a hard disk or an optical disk. As shown in FIG. 5, the storage unit 14 has a usage history storage unit 141.

[0113] [Regarding the usage history storage unit 141] The usage history storage unit 141 stores various information related to the usage history of the first lighting device 10 by the user. An example of the information stored in the usage history storage unit 141 will now be described with reference to FIG. 6. FIG. 6 is a diagram illustrating an example of the usage history storage unit 141 according to the embodiment. In the example of FIG. 6, the usage history storage unit 141 has items such as "user ID," "usage time," and "setting information."

[0114] "User ID" indicates identification information for identifying a user. "Usage time" indicates information related to the time the user used (turned on) the first lighting device 10, and stores information such as the date and time of use and the length of time used. "Setting information" indicates information related to the settings (control details) of the first lighting device 10 by the user, and stores information such as the dimming level and color temperature.

[0115] That is, FIG. 6 shows an example in which a user identified by a user ID "UID#1" uses the first lighting device 10, the usage time is "usage time #1", and the setting information is "setting information #1".

[0116] [Regarding the control unit 15] The control unit 15 is a controller, and is realized, for example, by a CPU (Central Processing Unit) or an MPU (Micro Processing Unit) executing various programs stored in a storage device inside the first lighting device 10 using RAM as a work area. The control unit 15 is also a controller, and is realized, for example, by an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array). As shown in FIG. 5 , the control unit 15 according to the embodiment has a receiving unit 151, a detecting unit 152, and an output unit 153, and realizes or executes the functions and actions of information processing described below.

[0117] [Regarding the receiving unit 151] The receiving unit 151 receives lighting control details from a user terminal used by a user. For example, in the example of Fig. 2, the receiving unit 151 receives lighting control details from the user terminal 100-1.

[0118] Furthermore, the receiving unit 151 may further receive information indicating a user. For example, in the example of Fig. 2, the receiving unit 151 receives information indicating a user U1 in addition to the lighting control content.

[0119] [Regarding the detection unit 152] The detection unit 152 detects the illuminance of the space that the lighting device is installed in. For example, in the example of Fig. 2, the detection unit 152 controls the sensor unit 12 to detect the illuminance of space #1.

[0120] [Regarding the output unit 153] The output unit 153 outputs control information for controlling the lighting by other lighting devices that illuminate a predetermined area including the work area, based on the control content received by the receiving unit 151. For example, in the example of FIG. 2, the output unit 153 outputs control information for controlling the lighting by the second lighting device 20 to the controller 40, based on the control content of the first lighting device 10-1.

[0121] Furthermore, the output unit 153 may output control information for controlling lighting by another lighting device whose radio wave intensity received by the lighting device is equal to or greater than a predetermined threshold. For example, in the example of Fig. 2, the output unit 153 outputs control information for controlling lighting by the second lighting device 20 whose radio wave intensity received by the lighting device is equal to or greater than a predetermined threshold.

[0122] Furthermore, the output unit 153 may output control information indicating the lighting setting of the light-emitting unit 11 based on the control content. For example, in the example of Fig. 2, the output unit 153 outputs control information indicating the lighting setting of the device itself based on the control content received from the user terminal 100-1.

[0123] Furthermore, output unit 153 may output control information for controlling lighting by another lighting device based on the control content and the illuminance. For example, in the example of Fig. 2, output unit 153 outputs control information for controlling lighting by second lighting device 20 based on the control content of its own device and the illuminance of space #1.

[0124] Furthermore, the output unit 153 may output control information for controlling the illumination by another illumination device so that the illuminance is equal to or greater than the lower limit. For example, in the example of Fig. 2, the output unit 153 outputs control information for controlling the illumination by the second illumination device 20 so that the illuminance of space #1 is equal to or greater than the lower limit.

[0125] Furthermore, the output unit 153 may output control information for controlling the illumination by another illumination device so that the illuminance is equal to or less than the upper limit. For example, in the example of Fig. 2, the output unit 153 outputs control information for controlling the illumination by the second illumination device 20 so that the illuminance of space #1 is equal to or less than the upper limit.

[0126] Furthermore, output unit 153 may output control information when the illuminance of light-emitting unit 11 changes by a predetermined threshold or more. For example, in the example of Fig. 2, output unit 153 outputs control information when the illuminance of its own device changes by a predetermined threshold or more.

[0127] 2, the output unit 153 acquires information about the user U1 stored in a storage unit of the device itself (e.g., the usage history storage unit 141), the server 30, the controller 40, etc., based on the identification information of the user U1, and outputs the control information based on the acquired information.

[0128] Furthermore, the output unit 153 may output control information to another lighting device. For example, in the example of Fig. 2, the output unit 153 outputs control information for controlling lighting by the second lighting device 20 to the second lighting device 20.

[0129] Furthermore, the output unit 153 may output control information to a control device that controls lighting by another lighting device. For example, in the example of Fig. 2, the output unit 153 outputs control information for controlling lighting by the second lighting device 20 to the controller 40.

[0130] (An example of an information processing device) Next, the configuration of an information processing device 200, which is an example of the server 30 and the controller 40, will be described with reference to Fig. 7. Fig. 7 is a diagram showing an example of the configuration of the information processing device 200 according to the embodiment. As shown in Fig. 7, the information processing device 200 has a communication unit 210, a storage unit 220, and a control unit 230.

[0131] [Regarding the communication unit 210] The communication unit 210 is realized by, for example, a NIC etc. The communication unit 210 is connected to the network N by wire or wirelessly, and transmits and receives information to and from the first lighting device 10, the second lighting device 20, the server 30, the controller 40, the photographing device 50, the setting device 60, the user terminal 100, etc.

[0132] [Regarding the storage unit 220] The storage unit 220 is realized by, for example, a semiconductor memory element such as a RAM or a flash memory, or a storage device such as a hard disk or an optical disk. As shown in FIG. 7 , the storage unit 220 has a lighting device information storage unit 221 and a user information storage unit 222.

[0133] [Regarding the lighting device information storage unit 221] The lighting device information storage unit 221 stores various types of information related to lighting devices such as the first lighting device 10 and the second lighting device 20. An example of the information stored in the lighting device information storage unit 221 will now be described with reference to FIG. 8. FIG. 8 is a diagram illustrating an example of the lighting device information storage unit 221 according to an embodiment. In the example of FIG. 8, the lighting device information storage unit 221 has items such as "lighting device ID," "usage time," and "setting information."

[0134] "Lighting device ID" indicates identification information for identifying a lighting device (e.g., the first lighting device 10, the second lighting device 20, etc.). "Usage time" indicates information related to the time the lighting device was used, and stores information such as the date and time of use and the length of time used. "Setting information" indicates information related to the settings of the lighting device, and stores information such as the dimming level and color temperature.

[0135] That is, FIG. 8 shows an example in which the usage time of the lighting device identified by the lighting device ID "DID#1" is "usage time #1" and the setting information is "setting information #1."

[0136] The lighting device information storage unit 221 may further store position information of the first lighting device 10, the second lighting device 20, and the like.

[0137] [Regarding the user information storage unit 222] The user information storage unit 222 stores various information related to the usage history of the first lighting device 10 by the user. An example of information stored in the user information storage unit 222 will now be described with reference to FIG. 9. FIG. 9 is a diagram illustrating an example of the user information storage unit 222 according to the embodiment. In the example of FIG. 9, the user information storage unit 222 has items such as "user ID," "lighting device ID," "usage time," and "setting information."

[0138] "User ID" indicates identification information for identifying a user. "Lighting device ID" indicates identification information for identifying a lighting device (e.g., the first lighting device 10). "Usage time" indicates information related to the time the user used the lighting device, and stores information such as the date and time of use and the length of time used. "Setting information" indicates information related to the settings of the lighting device made by the user, and stores information such as the dimming level and color temperature.

[0139] That is, Figure 9 shows an example in which a user identified by user ID "UID#1" uses a lighting device identified by lighting device ID "DID#1", the usage time is "usage time #1", and the setting information is "setting information #1".

[0140] [Regarding the control unit 230] The control unit 230 is a controller, and is realized by, for example, a CPU, an MPU, or the like executing various programs stored in a storage device inside the information processing device 200 using RAM as a work area. The control unit 230 is also a controller, and is realized by, for example, an integrated circuit such as an ASIC or an FPGA. As shown in Fig. 7, the control unit 230 according to the embodiment has an acquisition unit 231 and an illumination control unit 232, and realizes or executes the functions and actions of information processing described below.

[0141] [Regarding the acquisition unit 231] The acquisition unit 231 acquires the lighting state of the first lighting device 10 corresponding to the second lighting device 20 to be controlled. For example, in the example of Fig. 2, the acquisition unit 231 acquires the dimming level from the first lighting device 10 corresponding to the second lighting device 20.

[0142] The acquisition unit 231 may further acquire information indicating a user who uses the first lighting device 10 corresponding to the second lighting device 20. For example, in the example of Fig. 2, the acquisition unit 231 acquires information regarding a user who is operating the first lighting device 10 corresponding to the second lighting device 20 to be controlled.

[0143] The acquiring unit 231 may also acquire information about an image captured of a space in which a first lighting device that illuminates a user's work area and a second lighting device that illuminates a predetermined area including the work area are installed. For example, in the example of Fig. 3, the acquiring unit 231 acquires information about image #1 of space #1 from the imaging device 50.

[0144] [Regarding the lighting control unit 232] The lighting control unit 232 controls the lighting by the second lighting device based on the lighting mode acquired by the acquisition unit 231. For example, in the example of Fig. 2, the lighting control unit 232 determines the dimming level of the second lighting device 20 based on the dimming level acquired from the first lighting device 10, and transmits control information to the second lighting device 20 so as to perform lighting at the determined dimming level.

[0145] Furthermore, the lighting control unit 232 may control the lighting by the second lighting device 20 so that the illuminance by the first lighting device and the second lighting device in the space where the first lighting device and the second lighting device are installed is equal to or greater than a lower limit. In the example of Fig. 2, the lighting control unit 232 transmits control information for controlling the lighting by the second lighting device 20 so that the illuminance in space #1 is equal to or greater than a lower limit.

[0146] Furthermore, the lighting control unit 232 may control the lighting by the second lighting device 20 so that the illuminance by the first lighting device and the second lighting device in the space where the first lighting device and the second lighting device are installed is equal to or less than an upper limit. In the example of Fig. 2, the lighting control unit 232 transmits control information for controlling the lighting by the second lighting device 20 so that the illuminance in space #1 is equal to or less than an upper limit.

[0147] Furthermore, the lighting control unit 232 may control the lighting by the second lighting device 20 based on the lighting mode and information about the user. In the example of Fig. 2, the lighting control unit 232 determines the illuminance of the second lighting device 20 based on information about the user operating the first lighting device 10 corresponding to the second lighting device 20 to be controlled, and controls the lighting by the second lighting device 20 to light up at the determined illuminance.

[0148] Furthermore, the lighting control unit 232 may control the lighting by the first lighting device or the second lighting device based on the information acquired by the acquisition unit 231. In the example of Fig. 3, the lighting control unit 232 controls the lighting by the first lighting device 10-1 or the second lighting device 20 based on information about the image #1 of the space #1.

[0149] Furthermore, the lighting control unit 232 may control the lighting by the first lighting device 10 or the second lighting device 20 based on information about a user present in the space. In the example of Fig. 3, the lighting control unit 232 controls the lighting by the first lighting device 10 or the second lighting device 20 based on information about a user present in the space #1 recognized from image #1 using any image recognition technology.

[0150] Furthermore, the lighting control unit 232 may control the lighting by the first lighting device or the second lighting device based on the number of users present in the space. In the example of Fig. 3, the lighting control unit 232 controls the lighting by the first lighting device 10 or the second lighting device 20 based on the number of users present in space #1.

[0151] Furthermore, the lighting control unit 232 may control the lighting by the first lighting device or the second lighting device based on the work of a user present in the space. In the example of Fig. 3, the lighting control unit 232 controls the lighting by the first lighting device 10 or the second lighting device 20 based on the work of a user present in space #1.

[0152] Furthermore, the lighting control unit 232 may control the lighting by the first lighting device or the second lighting device based on the illuminance of the space. In the example of Fig. 3, the lighting control unit 232 controls the lighting by the first lighting device 10-1 or the second lighting device 20 based on the illuminance of space #1.

[0153] Furthermore, the lighting control unit 232 may control the lighting by the first lighting device or the second lighting device so that the change in illuminance in the space is equal to or less than a predetermined threshold. In the example of Fig. 3, the lighting control unit 232 controls the lighting by the first lighting device 10 or the second lighting device 20 so that the change in illuminance in space #1 is equal to or less than a predetermined threshold.

[0154] Furthermore, the lighting control unit 232 may control the lighting by the first lighting device or the second lighting device based on the type of space. In the example of Fig. 3, the lighting control unit 232 controls the lighting by the first lighting device 10 or the second lighting device 20 based on the type of space #1.

[0155] Furthermore, the lighting control unit 232 may control the lighting by the first lighting device or the second lighting device so that the difference between the illuminance of the space and the illuminance of another space adjacent to the space is equal to or less than a predetermined threshold. In the example of Fig. 3, the lighting control unit 232 controls the lighting by the first lighting device 10 or the second lighting device 20 so that the difference between the illuminance of the space #1 and the illuminance of another space adjacent to the space #1 is equal to or less than a predetermined threshold.

[0156] (Processing flow of the first lighting device 10) Next, the flow of processing of the first lighting device 10 according to the embodiment will be described with reference to Fig. 10. Fig. 10 is a flowchart (1) showing an example of the procedure of information processing according to the embodiment.

[0157] 10, the first lighting device 10 determines whether or not lighting control content has been received from the user terminal 100 used by the user (step S101). If control content has not been received (step S101; No), the first lighting device 10 waits until control content is received.

[0158] On the other hand, if the control content has been received (step S101; Yes), the first lighting device 10 outputs control information for controlling the lighting by other lighting devices that illuminate a predetermined area including the work area based on the control content (step S102), and ends the processing.

[0159] (Processing flow of information processing device 200) Next, the flow of processing by the information processing device 200 according to the embodiment will be described with reference to Fig. 11. Fig. 11 is a flowchart (2) showing an example of the procedure of information processing according to the embodiment.

[0160] 11, the information processing device 200 determines whether or not information about an image captured of a space in which the first lighting device and the second lighting device are installed has been acquired (step S201). If information about the image has not been acquired (step S201; No), the information processing device 200 waits until information about the image is acquired.

[0161] On the other hand, if information about the image has been acquired (step S201; Yes), the information processing device 200 controls the illumination by the first illumination device 10 or the second illumination device 20 based on the acquired information (step S202), and ends the processing.

[0162] (Variation) The above-described embodiment is merely an example, and various modifications and applications are possible.

[0163] [Regarding processing mode] Of the processes described in the above embodiments, all or part of the processes described as being performed automatically can be performed manually, and conversely, all or part of the processes described as being performed manually can be performed automatically using known methods. In addition, the information, including the processing procedures, specific names, various data, and parameters shown in the above text and drawings, can be changed as desired unless otherwise specified. For example, the various information shown in each drawing is not limited to the information shown in the drawings.

[0164] Furthermore, the components of each device shown in the figure are conceptual functional components and do not necessarily have to be physically configured as shown in the figure. In other words, the specific form of distribution and integration of each device is not limited to that shown in the figure, and all or part of them can be functionally or physically distributed and integrated in any unit depending on various loads, usage conditions, etc.

[0165] Furthermore, the above-described embodiments can be combined as appropriate within the scope of not causing any contradiction in the processing content. [Explanation of symbols]

[0166] 10 First lighting device 11 Light-emitting part 12 Sensor section 13 Communications Department 14 Storage section 141 Usage history memory unit 15 Control Unit 151 Receiving unit 152 Detection unit 153 Output section 20 Second lighting device 30 servers 40 Controller 50 Imaging equipment 60 Setting device 200 Information processing device 210 Communications Department 220 Storage section 221 Lighting device information storage unit 222 User information storage unit 230 Control Unit 231 Acquisition Department 232 Lighting control unit

Claims

1. a light-emitting unit for illuminating a user's work area; a receiving unit that receives lighting control content from a user terminal used by the user; an output unit that outputs control information for controlling lighting by other lighting devices that illuminate a predetermined area including the work area, based on the control content received by the receiving unit; A lighting device comprising:

2. The output unit The lighting device outputs the control information for controlling the lighting by the other lighting device, the radio wave intensity of which is received by the lighting device being equal to or greater than a predetermined threshold.

2. The lighting device according to claim 1.

3. The output unit outputting the control information indicating the lighting setting of the light-emitting unit based on the control content; 2. The lighting device according to claim 1.

4. A detection unit that detects the illuminance of a space where the lighting device is installed: and The output unit outputting the control information for controlling the lighting by the other lighting device based on the control content and the illuminance; 2. The lighting device according to claim 1.

5. The output unit outputting the control information for controlling the illumination by the other lighting device so that the illuminance is equal to or greater than a lower limit value; 5. The lighting device according to claim 4.

6. The output unit outputting the control information for controlling the illumination by the other lighting device so that the illuminance is equal to or less than an upper limit value; 5. The lighting device according to claim 4.

7. The output unit When the illuminance of the light-emitting unit changes by a predetermined threshold or more, the control information is output.

2. The lighting device according to claim 1.

8. The receiving unit is Furthermore, receiving information indicating the user, The output unit The control information is output based on the information about the user and the control content.

2. The lighting device according to claim 1.

9. The output unit outputting the control information to the other lighting device; 2. The lighting device according to claim 1.

10. The output unit outputting the control information to a control device that controls the lighting by the other lighting device; 2. The lighting device according to claim 1.

11. 11. The lighting device according to claim 1, wherein the lighting device is portable.

12. A lighting system comprising a first lighting device that illuminates a user's work area and a second lighting device that illuminates a predetermined area including the work area, an acquisition unit that acquires a lighting state of the first lighting device corresponding to the second lighting device to be controlled; an illumination control unit that controls illumination by the second illumination device based on the illumination mode acquired by the acquisition unit; A lighting system comprising:

13. The lighting control unit Controlling the illumination by the second lighting device so that the illuminance by the first lighting device and the second lighting device in a space in which the first lighting device and the second lighting device are installed is equal to or greater than a lower limit value.

13. The lighting system according to claim 12.

14. The lighting control unit Controlling the illumination by the second lighting device so that the illuminance by the first lighting device and the second lighting device in a space in which the first lighting device and the second lighting device are installed is equal to or lower than an upper limit value.

13. The lighting system according to claim 12.

15. The acquisition unit further acquiring information indicating a user who uses the first lighting device corresponding to the second lighting device; The lighting control unit and controlling the lighting by the second lighting device based on the lighting mode and information about the user.

13. The lighting system according to claim 12.

Images