Lighting fixture and illumination system

Abstract

To provide a lighting fixture and the like capable of emitting a beacon signal to an area different from the area where the illumination light is emitted.SOLUTION: A lighting fixture 20 includes: a lighting unit that emits illumination light in a specific direction; and a wireless communication unit that emits a beacon signal with directivity in a direction different from a specific direction.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a lighting fixture and a lighting system. [Background technology]

[0002] Various technologies relating to lighting have been proposed. Patent Document 1 discloses a lighting system that can improve the communication environment in a location where a beacon device is installed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-111628 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention provides a lighting fixture or the like that can emit a beacon signal toward an area different from the area in which the illumination light is emitted. [Means for solving the problem]

[0005] A lighting fixture according to one aspect of the present invention includes a lighting unit that emits illumination light in a specific direction, and a wireless communication unit that emits a beacon signal having directivity in a transmission direction different from the specific direction.

[0006] A lighting system according to one embodiment of the present invention comprises the lighting fixture, a setting terminal operated by a setting person to change settings related to the beacon signal emitted by the lighting fixture, and a mobile terminal that receives the beacon signal emitted by the lighting fixture and performs notification processing for a user based on the received beacon signal, and components in the data format of the beacon signal include at least one of a first ID for identifying the device that transmitted the beacon signal and a second ID that is an identification ID specified by the operator that transmitted the beacon signal. [Effects of the Invention]

[0007] According to the present invention, a lighting fixture or the like is realized that can emit a beacon signal toward an area different from the area in which the lighting light is emitted. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a block diagram showing a functional configuration of a lighting system according to an embodiment. [Figure 2] FIG. 2 is a diagram illustrating an example of a space to which the beacon communication system according to the embodiment is applied. [Figure 3] FIG. 3 is a diagram illustrating an example of a data format of a beacon signal. [Figure 4] FIG. 4 is a flowchart of an example of a beacon signal setting operation. [Figure 5] FIG. 5 is a diagram showing an example of a lighting fixture selection screen. [Figure 6] FIG. 6 is a diagram showing an example of a beacon signal setting screen. [Figure 7] FIG. 7 is a sequence diagram of an example of the operation of the mobile terminal. [Figure 8] FIG. 8 is a diagram showing an example of display of notification information. [Figure 9] FIG. 9 is a diagram showing an example in which notification is performed based on a beacon signal having a second data format while an application that uses a beacon signal having a first data format is being executed. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments will be described with reference to the drawings. Note that the embodiments described below are all comprehensive or specific examples. The numerical values, shapes, materials, components, component placement and connection forms, steps, and step order shown in the following embodiments are merely examples and are not intended to limit the present invention. Furthermore, among the components in the following embodiments, components not recited in independent claims will be described as optional components.

[0010] It should be noted that the drawings are schematic diagrams and are not necessarily strict illustrations. In addition, in the drawings, substantially the same components are denoted by the same reference numerals, and overlapping descriptions may be omitted or simplified.

[0011] (Embodiment) [composition] First, a configuration of a lighting system according to an embodiment will be described. Fig. 1 is a block diagram showing a functional configuration of a lighting system according to an embodiment. Fig. 2 is a diagram showing an example of a space to which a beacon communication system according to an embodiment is applied.

[0012] The lighting system 10 shown in FIG. 1 is applied to a space (indoor space) within a facility such as a commercial facility. The lighting system 10 can provide services such as notifications to users of mobile terminals 40 that receive beacon signals emitted by lighting fixtures 20. The lighting system 10 includes multiple lighting fixtures 20, a setting terminal 30, and the mobile terminal 40. The multiple lighting fixtures 20 and the setting terminal 30 constitute a lighting control system 50. The lighting system 10 and the lighting control system 50 only need to include at least one lighting fixture 20.

[0013] First, lighting fixture 20 will be described. Lighting fixture 20 is a spotlight or the like that is installed on a wall or ceiling of an indoor space and illuminates the indoor space. The form of lighting fixture 20 is not particularly limited, and it may be a ceiling light, a downlight, a base light, or the like. Lighting fixture 20 does not need to be fixed to a wall or ceiling, and may be a portable lighting fixture such as a stand lamp. Lighting fixture 20 specifically includes a lighting unit 21, a communication unit 22, a wireless communication unit 23, a control unit 24, and a memory unit 25.

[0014] Illumination unit 21 emits illumination light in a specific direction using power supplied from a power grid. In the example of FIG. 2, illumination device 20 is used to light up exhibited (displayed) merchandise, and the specific direction is the direction from illumination device 20 toward the exhibited merchandise. The specific direction refers to the main emission direction of light (illumination light) emitted by illumination device 20, and can be considered, for example, as a direction parallel to the optical axis, a direction in which the light intensity is strongest, or a direction along the center line of the light irradiation range. The illumination light emitted by illumination unit 21 is, for example, white light. Illumination unit 21 is realized by, for example, an LED (Light Emitting Diode) element, but may also be realized by other light-emitting elements such as a semiconductor laser, an organic EL (Electro-Luminescence) element, or an inorganic EL element.

[0015] Communication unit 22 is a communication circuit that enables lighting fixture 20 to communicate with other lighting fixtures 20 and setting terminal 30 via a local communication network. Communication unit 22 may be a wireless communication circuit that performs wireless communication, or a wired communication circuit that performs wired communication. Examples of communication protocols for wireless communication include, but are not limited to, Wi-Fi (registered trademark), BLE (Bluetooth (registered trademark) Low Energy), and Zigbee (registered trademark). Examples of communication standards for wired communication include, but are not limited to, Ethernet (registered trademark) and power line communication.

[0016] The wireless communication unit 23 periodically emits a beacon signal (sometimes called an advertisement signal, etc.). Specifically, the wireless communication unit 23 is a wireless communication circuit that emits a beacon signal in accordance with a communication protocol (communication standard) such as BLE. The wireless communication unit 23 includes a plurality of antennas 23a. The antennas 23a are, for example, pattern antennas.

[0017] The wireless communication unit 23 emits a directional beacon signal. If the direction in which the beacon signal has directivity is defined as the transmission direction, the transmission direction is a direction different from the specific direction in which the illumination light is emitted. Specifically, the directivity of the beacon signal is adjusted so that the beacon signal reaches only the area ahead of the transmission direction and hardly reaches other areas.

[0018] In this way, lighting fixture 20 can emit a beacon signal having a directionality different from the specific direction in which the illumination light is emitted, thereby illuminating the product (shelf) and emitting a beacon signal toward mobile terminal 40 carried by a user positioned in the aisle in front of the product.

[0019] Furthermore, wireless communication unit 23 (control unit 24) can change the transmission direction by selectively using multiple antennas 23a to transmit a beacon signal. In the example of FIG. 2, wireless communication unit 23 can transmit a beacon signal in a first transmission direction using first antenna 23a of multiple antennas 23a, and the reception range within which mobile terminal 40 can receive the beacon signal is reception range A on the right side of FIG. 2. Wireless communication unit 23 can transmit a beacon signal in a second transmission direction using second antenna 23a of multiple antennas 23a, and the reception range within which mobile terminal 40 can receive the beacon signal is reception range B on the left side of FIG. 2. Note that wireless communication unit 23 can also transmit a beacon signal using first antenna 23a and second antenna 23a simultaneously. The transmission direction of the beacon signal is changed depending on, for example, the installation location and use of lighting fixture 20.

[0020] Possible methods for imparting directionality to the beacon signal and limiting the reception range include at least one of the following: changing the design of the pattern antenna, adjusting the circuit constants of the wireless communication circuit, and placing a dielectric or the like around wireless communication unit 23 in lighting fixture 20. The reception range of the beacon signal can also be changed by adjusting the transmission power of the beacon signal.

[0021] If communication unit 22 is a wireless communication circuit, communication unit 22 and wireless communication unit 23 can be realized by a common wireless communication circuit (such as a communication module or a communication chip). In this case, antenna 23a that emits the beacon signal is also used to receive a lighting control signal for controlling the light emission of lighting fixture 20. The lighting control signal is transmitted by setting terminal 30 or another lighting controller (not shown).

[0022] The control unit 24 processes information relating to the control of the illumination unit 21 and the communication unit 22, and the control of the wireless communication unit 23 (beacon signal). The control unit 24 is realized by, for example, a microcomputer, but may also be realized by a processor or a dedicated circuit. The functions of the control unit 24 are realized by hardware such as a microcomputer or processor constituting the control unit 24 executing a computer program (software) stored in the storage unit 25.

[0023] The storage unit 25 is a storage device that stores information necessary for the above information processing. The information stored in the storage unit 25 includes computer programs executed by the control unit 24. The storage unit 25 is realized by, for example, a semiconductor memory.

[0024] Next, the setting terminal 30 will be described. The setting terminal 30 is an information terminal operated by a setting person to change settings related to the beacon signals of lighting fixtures 20. The setting terminal 30 is, for example, a dedicated remote controller for the lighting control system 50, but may also be realized by installing a predetermined application program on a general-purpose information terminal. Examples of the general-purpose information terminal include a personal computer, a smartphone, or a tablet terminal. Specifically, the setting terminal 30 includes an operation reception unit 31, a display unit 32, a communication unit 33, a control unit 34, and a storage unit 35.

[0025] The operation reception unit 31 receives operations from a setting person. Specifically, the operation reception unit 31 is realized by a mouse, a keyboard, a touch panel, or the like.

[0026] The display unit 32 is a display that displays an image that is visually recognized by the user, and is realized by a display panel such as a liquid crystal panel or an organic EL panel, for example.

[0027] Communication unit 33 is a communication circuit that enables setting terminal 30 to communicate with each of multiple lighting fixtures 20 via the local communication network. Communication unit 33 may be a wireless communication circuit that performs wireless communication, or a wired communication circuit that performs wired communication.

[0028] The control unit 34 processes information related to changes in the settings of the beacon signal. The control unit 34 is realized by, for example, a microcomputer, but may also be realized by a processor or a dedicated circuit. The functions of the control unit 34 are realized by hardware such as a microcomputer or processor constituting the control unit 34 executing a computer program (software) stored in the storage unit 35.

[0029] The storage unit 35 is a storage device that stores information necessary for the above information processing. The information stored in the storage unit 35 includes computer programs executed by the control unit 34. The storage unit 35 is realized by, for example, a semiconductor memory.

[0030] Next, mobile terminal 40 will be described. Mobile terminal 40 is a portable information terminal carried by a user visiting a facility where lighting fixture 20 is installed (such as the commercial facility in FIG. 2), and is an example of a receiver for a beacon signal emitted by lighting fixture 20. Mobile terminal 40 is, for example, a smartphone, a tablet terminal, or a personal digital assistant (PDA). Specifically, mobile terminal 40 includes an operation acceptance unit 41, a display unit 42, a receiving unit 43, a control unit 44, and a storage unit 45.

[0031] The operation reception unit 41 receives operations from a user. Specifically, the operation reception unit 41 is realized by a touch panel or the like.

[0032] The display unit 42 is a display that displays an image that is visually recognized by the user. The display unit 42 is realized by a display panel such as a liquid crystal panel or an organic EL panel, for example.

[0033] Receiving unit 43 receives a beacon signal emitted by lighting fixture 20. Specifically, receiving unit 43 is a wireless communication circuit that receives a beacon signal in accordance with a communication protocol (communication standard) such as BLE.

[0034] The control unit 44 performs information processing to notify the user, etc., based on the beacon signal received by the receiving unit 43. The control unit 44 is realized, for example, by a microcomputer, but may also be realized by a processor or a dedicated circuit. The functions of the control unit 44 are realized by hardware such as a microcomputer or processor constituting the control unit 44 executing a computer program (software) stored in the storage unit 45.

[0035] The storage unit 45 is a storage device that stores information necessary for the above information processing. The information stored in the storage unit 45 includes computer programs executed by the control unit 44. The computer programs are, for example, so-called application programs (hereinafter also simply referred to as apps) that are installed in advance in the storage unit 45 by the user. The storage unit 45 is realized, for example, by a semiconductor memory or the like.

[0036] [Beacon signal data format] In the lighting system 10, a setting person can change the frequency of beacon signal transmission (the time interval at which the beacon signal is transmitted) by operating the setting terminal 30. Fig. 3 is a diagram showing an example of the data format of a beacon signal. As shown in Fig. 3, data format A of a beacon signal includes, as components, header information, a service ID, a beacon ID, and additional information.

[0037] The header information is identification information defined by a communication protocol, and includes the individual address of lighting fixture 20 (the device that is the source of the beacon signal).

[0038] The service ID is information for identifying a service provided by a beacon signal, and is an example of a second ID. In other words, the service ID is an identification ID defined by the operator that is the source of the beacon signal.

[0039] The beacon ID is information for identifying lighting fixture 20 (the device that is the source of the beacon signal) and is an example of a first ID. When lighting fixture 20 is installed in a commercial facility, by appropriately setting the beacon ID in accordance with a predetermined rule, mobile terminal 40 can identify, based on the received beacon signal, the building, floor, store, etc. in which lighting fixture 20 that is the source of the beacon signal is installed.

[0040] The additional information is information for adding more detailed information to the beacon signal. Examples of the additional information include an identifier or a timestamp for strengthening security. Note that depending on the data format, additional information may not be included.

[0041] More specific examples of beacon IDs and service IDs are given below. In iBeacon (registered trademark), Major and Minor correspond to beacon IDs, and UUID corresponds to service IDs.

[0042] [Beacon signal setting operation example] As described above, in the lighting system 10, the person setting it up can change the frequency of beacon signal transmission, etc., by operating the setting terminal 30. An example 1 of such a beacon signal setting operation will be described below. Fig. 4 is a sequence diagram of an example of the beacon signal setting operation.

[0043] The user performs a predetermined first operation to display a selection screen for lighting fixtures 20, and operation receiving unit 31 receives this first operation (S11). When the first operation is received, control unit 34 displays a selection screen for lighting fixtures 20 on display unit 32 (S12). FIG. 5 is a diagram showing an example of the selection screen for lighting fixtures 20. Note that each of the multiple lighting fixtures 20 is associated with location information (coordinates) of the lighting fixture 20 within the commercial facility (map) and is registered in advance in setting terminal 30. The selection screen in FIG. 5 displays a top view (map) of the arrangement of the multiple lighting fixtures 20, and each rectangle arranged in a matrix represents a lighting fixture 20. Note that the multiple lighting fixtures 20 may be displayed as a list using text on the selection screen.

[0044] While the selection screen for lighting devices 20 in Fig. 5 is displayed, the user performs a predetermined second operation to select a lighting device 20, and operation accepting unit 31 accepts this second operation (S13). When the second operation is accepted, controller 34 displays on display unit 32 a setting screen for a beacon signal to be transmitted by lighting device 20 selected in step S13 (S14). Fig. 6 shows an example of the setting screen for a beacon signal.

[0045] As shown in Figure 6, on the beacon signal setting screen, you can set (input) one of multiple pre-registered data formats, transmission status (on or off), transmission frequency, service ID, beacon ID, and additional information.

[0046] After making the necessary settings, the person making the settings performs a predetermined third operation to transmit setting information indicating the settings made in step S14 to lighting device 20, and operation reception unit 31 receives this third operation (S15). When the third operation is received, controller 34 uses communication unit 33 to transmit the setting information to lighting device 20 selected in step S13 (S16).

[0047] The third operation may be performed multiple times corresponding to multiple lighting devices 20, or may be performed only once after setting beacon signals for multiple lighting devices 20. In other words, the setting information may be transmitted to each of multiple lighting devices 20 with a single operation.

[0048] Communication unit 22 of lighting fixture 20 receives the setting information. Control unit 24 stores the received setting information in storage unit 25 (S17), and thereafter controls wireless communication unit 23 in accordance with the stored setting information. In other words, control unit 24 can determine (change) the frequency of transmission of beacon signals emitted by wireless communication unit 23, etc., based on the setting information.

[0049] [Example of mobile device operation] Next, an example of the operation of mobile terminal 40 will be described when multiple types of beacon signals with different data formats are transmitted in a time-division manner by lighting fixtures 20 in a commercial facility. Fig. 7 is a sequence diagram of an example of the operation of mobile terminal 40.

[0050] Each of the lighting fixtures 20 transmits a plurality of types of beacon signals with different data formats at a set transmission frequency (time interval) (S21).

[0051] When a user carrying mobile terminal 40 enters a commercial facility and approaches multiple lighting fixtures 20, receiver 43 of mobile terminal 40 receives a beacon signal, and controller 44 displays notification information on display 42 in response to the received beacon signal (S22). Fig. 8 is a diagram showing an example of how the notification information is displayed.

[0052] For example, if the service ID and beacon ID in the data format of beacon A are linked to notification information A regarding a coupon that can be used at clothing store A, the control unit 44 displays notification information A on the display unit 42 when it receives a beacon signal corresponding to beacon A.

[0053] In addition, if the service ID and beacon ID in the data format of beacon B are linked to notification information B regarding an event being held at commercial facility B, the control unit 44 displays notification information B on the display unit 42 when it receives a beacon signal corresponding to beacon B.

[0054] In this way, the mobile terminal 40 can provide a plurality of types of notifications corresponding to a plurality of types of beacon signals.

[0055] Furthermore, the mobile terminal 40 may issue a notification based on a beacon signal corresponding to beacon B while an application using a beacon signal corresponding to beacon A is being executed. Fig. 9 is a diagram showing an example in which a notification is issued based on a beacon signal corresponding to beacon B while an application using a beacon signal corresponding to beacon A is being executed.

[0056] 9, the control unit 44 of the mobile terminal 40 is executing an application that measures the current location of the mobile terminal 40 using the received signal strength of a beacon signal corresponding to beacon A and displays the location on a map. When the receiving unit 43 receives a beacon signal corresponding to beacon B while such an application is being executed, the control unit 44 displays notification information on the map.

[0057] For example, if the service ID and beacon ID in the data format of beacon B are linked to notification information B regarding a coupon that can be used at grocery store B, the control unit 44 displays notification information B at the location of grocery store B on the map.

[0058] In this way, the mobile terminal 40 can make a notification based on the beacon signal corresponding to the beacon B while an application that uses the beacon signal corresponding to the beacon A is running.

[0059] Furthermore, mobile terminal 40 may selectively execute one of the apps installed in storage unit 45 in response to the received beacon signal. For example, upon receiving a beacon signal corresponding to beacon A, control unit 44 may execute the corresponding app A, and upon receiving a beacon signal corresponding to beacon B, control unit 44 may execute the corresponding app B.

[0060] [Variations] In the above embodiment, a means for switching between multiple antennas 23a is employed as a means for changing the transmission direction of a beacon signal. However, the means for changing the transmission direction of a beacon signal is not limited to a means for switching between multiple antennas 23a. For example, lighting device 20 (wireless communication unit 23) may include one antenna 23a and a mechanism for changing the orientation (posture) of one antenna 23a, and the transmission direction may be changed by the mechanism. This mechanism may be a mechanism that can manually change the orientation of antenna 23a, or may be an electric actuator that can electrically change the orientation of antenna 23a.

[0061] Furthermore, lighting device 20 may include a slot around antenna 23a into which a dielectric is inserted, and the transmission direction may be changed depending on whether or not a dielectric is inserted into the slot. For example, lighting device 20 may include one antenna 23a and multiple slots arranged to surround one antenna 23a, and the transmission direction may be changed by inserting a dielectric into some of the multiple slots.

[0062] Furthermore, lighting fixture 20 may include a means for changing the specific direction in which lighting fixture 20 emits illumination light, in addition to a means for changing the transmission direction of the beacon signal. For example, lighting fixture 20 may include a movable mechanism that connects a mounting structure for mounting lighting fixture 20 to a wall or ceiling and the main body (lamp body) of lighting fixture 20. This increases the degree of freedom in combining the transmission direction of the beacon signal and the specific direction in which illumination light is emitted. For example, lighting fixture 20 can be installed in a convenient location, and then the specific direction in which illumination light is emitted and the transmission direction of the beacon signal can both be changed (adjusted), thereby improving usability.

[0063] The advantages of using lighting fixtures 20 as beacon transmitters as in the above embodiment include the following. Because lighting fixtures 20 are installed comprehensively at approximately equal intervals on the ceiling, when lighting fixtures 20 are used as beacon transmitters, there is an advantage that the beacon transmitters are automatically arranged comprehensively. Furthermore, because lighting fixtures 20 are installed on the ceiling where there are few obstacles, there is an advantage that there are few obstacles for the beacon signal (radio waves) when lighting fixtures 20 are used as beacon transmitters. Furthermore, when a dedicated beacon transmitter separate from lighting fixture 20 is installed, power supply to the beacon transmitter (wiring of a power line) becomes an issue, but when lighting fixture 20 is used as a beacon transmitter, there is an advantage that power supply does not need to be considered.

[0064] [Effects, etc.] Hereinafter, examples of inventions that can be obtained from the disclosure of this specification will be given, and the effects and the like that can be obtained from these inventions will be explained.

[0065] Invention 1 is lighting fixture 20 including lighting unit 21 that emits illumination light in a specific direction, and wireless communication unit 23 that emits a beacon signal having directivity in a transmission direction different from the specific direction.

[0066] Such lighting fixtures 20 can emit beacon signals toward an area different from the area in which the lighting fixtures 20 emit illumination light.

[0067] Invention 2 is lighting device 20 of Invention 1, which is capable of changing the transmission direction.

[0068] Such lighting fixture 20 can change the direction of transmission of the beacon signal, improving usability.

[0069] Invention 3 is lighting fixture 20 of Invention 2, in which wireless communication unit 23 is equipped with multiple antennas 23a, and the change in transmission direction is achieved by wireless communication unit 23 selectively using the multiple antennas 23a to emit a beacon signal.

[0070] Such lighting fixture 20 can change the direction of transmission of the beacon signal by switching the antenna 23a to be used.

[0071] Invention 4 is the lighting fixture 20 of Invention 2 or 3, which is capable of changing the specific direction.

[0072] Such lighting fixture 20 can change both the specific direction in which the illumination light is emitted and the direction in which the beacon signal is transmitted, thereby improving usability.

[0073] Invention 5 is lighting system 10 comprising lighting fixture 20 of any of Inventions 1 to 4, setting terminal 30 operated by a setting person to change settings related to the beacon signal emitted by lighting fixture 20, and mobile terminal 40 that receives the beacon signal emitted by lighting fixture 20 and performs notification processing to the user based on the received beacon signal, wherein components of the data format of the beacon signal include at least one of a first ID for identifying the device that transmitted the beacon signal and a second ID that is an identification ID specified by the business that transmitted the beacon signal.

[0074] Such a lighting system 10 can provide notification services to the user.

[0075] (Other embodiments) Although the embodiments have been described above, the present invention is not limited to the above-described embodiments.

[0076] For example, the communication method between the devices in the above-described embodiment is not particularly limited, and a relay device (not shown) may be used in the communication between the devices.

[0077] In the above-described embodiment, the processing performed by a specific processing unit may be performed by another processing unit. The order of multiple processing operations may be changed, or multiple processing operations may be performed in parallel.

[0078] In the above-described embodiments, each component may be realized by executing a software program suitable for that component, or by a program execution unit such as a CPU or processor reading and executing a software program recorded on a recording medium such as a hard disk or semiconductor memory.

[0079] Furthermore, each component may be realized by hardware. For example, each component may be a circuit (or 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.

[0080] Furthermore, the general or specific aspects of the present invention may be realized as a system, an apparatus, a method, an integrated circuit, a computer program, or a computer-readable recording medium such as a CD-ROM, or as any combination of a system, an apparatus, a method, an integrated circuit, a computer program, and a recording medium.

[0081] For example, the present invention may be realized as the lighting system, lighting control system, setting terminal, or mobile terminal of the above-described embodiments. The present invention may be realized as a method executed by a computer. The present invention may be realized as a program for causing a computer to execute such a method, or as a non-transitory recording medium on which such a program is recorded. Such programs include an application program for causing a general-purpose information terminal (computer) to function as the setting terminal of the above-described embodiments, and an application program installed on a mobile terminal.

[0082] In addition, the present invention also includes forms obtained by applying various modifications to each embodiment that a person skilled in the art would think of, or forms realized by arbitrarily combining the components and functions of each embodiment within the scope of the present invention. [Explanation of symbols]

[0083] 10. Lighting System 20 Lighting fixtures 21 Lighting Department 22, 33 Communications Department 23 Radio Communication Department 23a Antenna 24, 34, 44 Control unit 25, 35, 45 storage section 30 Setting terminal 31, 41 Operation reception section 32, 42 display section 40 Mobile Devices 43 Receiving unit 50 Lighting Control System

Claims

1. an illumination unit that emits illumination light in a specific direction; a wireless communication unit that transmits a beacon signal having directivity in a transmission direction different from the specific direction; Lighting fixtures.

2. The call direction can be changed 10. The lighting fixture of claim 1.

3. the wireless communication unit includes a plurality of antennas; The change in the transmission direction is realized by the wireless communication unit selectively using the plurality of antennas to transmit the beacon signal.

3. A lighting fixture according to claim 2.

4. The specific direction can be changed 4. A lighting fixture according to claim 2 or 3.

5. A lighting fixture according to any one of claims 1 to 4; a setting terminal operated by a setting person to change settings related to the beacon signals emitted by the lighting fixtures; a mobile terminal that receives the beacon signal emitted by the lighting device and performs a notification process for a user based on the received beacon signal, The components in the data format of the beacon signal include at least one of a first ID for identifying the device that is the source of the beacon signal and a second ID that is an identification ID defined by the operator that is the source of the beacon signal. Lighting system.

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