JP2022039644A - Illumination system - Google Patents

Abstract

To provide an illumination system which can acquire accurate mobile equipment position information with the suppression of beacon signal interference.SOLUTION: An illumination system A1 includes: a plurality of lighting apparatuses L each having a radio communication module 14 which transmits a beacon signal including the identification information of the self-apparatus; a control device Ct which controls the plurality of lighting apparatuses L; and mobile equipment Me which receives the beacon signals from the plurality of lighting apparatuses L to acquire the position information of the self-equipment. The plurality of lighting apparatuses L include a lighting apparatus L1 and a lighting apparatus L2. The lighting apparatuses L1, L2 transmit the beacon signals at mutually different timing.SELECTED DRAWING: Figure 7

Description

The present invention relates to a lighting system.

Various lighting systems have been proposed that control a plurality of lighting fixtures by using wireless communication. Patent Document 1 discloses an example of a conventional lighting system. The lighting system disclosed in the document comprises a plurality of luminaires and mobile devices. Each of the plurality of luminaires transmits a beacon signal including the identification information of the luminaire by wireless communication. The mobile device is, for example, a mobile terminal or an ID card carried by the user. The mobile device receives beacon signals from a plurality of lighting fixtures and acquires the position information of the own device.

Special Table 2017-509864

The number of a plurality of luminaires provided in a lighting system varies, and a large number of luminaires may be provided. At this time, there is a concern that the beacon signals from a plurality of lighting fixtures may interfere with each other, making it difficult for the mobile device to properly receive the beacon signals.

The present invention has been conceived under the above circumstances, and an object of the present invention is to provide a lighting system capable of suppressing interference of beacon signals and acquiring position information of mobile devices more accurately. do.

The lighting system provided by the present invention includes a plurality of luminaires each having a wireless communication module for transmitting a beacon signal including identification information of the luminaire, a control device for controlling the plurality of luminaires, and the plurality of luminaires. A mobile device that receives the beacon signal from the luminaire and acquires the position information of the own device, and the plurality of luminaires include a first luminaire and a second luminaire, and the first luminaire. And the second luminaire transmit the beacon signal at different timings from each other.

In a preferred embodiment of the invention, the plurality of luminaires further include a third luminaire, which has a non-transmission mode in which the beacon signal is not transmitted.

In a preferred embodiment of the invention, the wireless communication module of the lighting fixture is a first radio that uses a first protocol to perform mutual wireless communication with the plurality of lighting fixtures and wireless communication with the control device. It has a communication unit and a second wireless communication unit that wirelessly communicates with the mobile device using the second protocol, and the lighting fixture is a wireless communication of the first wireless communication unit using the first protocol. And the wireless communication of the second wireless communication unit using the second protocol are alternately performed.

In a preferred embodiment of the present invention, the mobile device transmits the position information of the own device to any of the plurality of luminaires by wireless communication using the second protocol, and the plurality of luminaires. Among them, the luminaire that has received the position information converts the position information from the second protocol into transfer data that can be transferred by wireless communication using the first protocol, and the transfer data is converted into the transfer data of the first wireless communication unit. Transfer to the controller directly from or via the other luminaire.

In a preferred embodiment of the present invention, the radio frequency transmitted and received by the second radio communication unit of the first lighting fixture and the radio frequency transmitted and received by the second radio communication unit of the second lighting fixture are mutually exclusive. different.

In a preferred embodiment of the present invention, the control device further comprises a plurality of the mobile devices and a plurality of monitoring devices, each of which monitors the state of a specific area of the environment in which the plurality of lighting fixtures are installed. Transmits the abnormal value information to at least one of the lighting fixture installed in the specific area and the mobile device close to the specific area among the plurality of mobile devices based on the abnormal value information of the monitoring device. ..

In a preferred embodiment of the present invention, the control device further comprises a plurality of the mobile device and a plurality of sensor devices, each of which detects the state of a specific area of the environment in which the plurality of lighting fixtures are installed. Transmits broadcast information to at least one of the lighting fixture installed in the specific area and the mobile device close to the specific area among the plurality of mobile devices based on the detection information of the sensor device.

According to the present invention, it is possible to suppress the interference of the beacon signal and acquire the position information of the mobile device more accurately.

Other features and advantages of the invention will be more apparent by the detailed description given below with reference to the accompanying drawings.

It is a system block diagram which shows the lighting system which concerns on 1st Embodiment of this invention. It is a schematic layout drawing which shows the lighting system which concerns on 1st Embodiment of this invention. It is a block diagram which shows an example of the lighting fixture of the lighting system which concerns on 1st Embodiment of this invention. It is a block diagram which shows an example of the mobile equipment of the lighting system which concerns on 1st Embodiment of this invention. It is a block diagram which shows an example of the control device of the lighting system which concerns on 1st Embodiment of this invention. It is a block diagram which shows an example of the mobile terminal of the lighting system which concerns on 1st Embodiment of this invention. It is a timing chart of the beacon signal of the lighting system which concerns on 1st Embodiment of this invention. It is a sequence diagram of the lighting system which concerns on 1st Embodiment of this invention. It is a sequence diagram of the lighting system which concerns on 1st Embodiment of this invention. It is a system block diagram which shows the 1st modification of the lighting system which concerns on 1st Embodiment of this invention. It is a timing chart of the beacon signal of the lighting system which concerns on 2nd Embodiment of this invention. It is a sequence diagram of the lighting system which concerns on 2nd Embodiment of this invention. It is a sequence diagram of the lighting system which concerns on 3rd Embodiment of this invention. It is a sequence diagram of the lighting system which concerns on 3rd Embodiment of this invention. It is a system block diagram which shows the lighting system which concerns on 4th Embodiment of this invention. It is a block diagram which shows the power supply unit of the lighting system which concerns on 4th Embodiment of this invention. It is a sequence diagram of the lighting system which concerns on 4th Embodiment of this invention. It is a system block diagram which shows the lighting system which concerns on 5th Embodiment of this invention. It is a sequence diagram of the lighting system which concerns on 5th Embodiment of this invention. It is a schematic layout drawing which shows the lighting system which concerns on 6th Embodiment of this invention. It is a sequence diagram of the lighting system which concerns on 6th Embodiment of this invention. It is a sequence diagram of the lighting system which concerns on 6th Embodiment of this invention. It is a sequence diagram of the 1st modification of the lighting system which concerns on 6th Embodiment of this invention. It is a system block diagram which shows the lighting system which concerns on 7th Embodiment of this invention. It is a schematic layout drawing which shows the lighting system which concerns on 7th Embodiment of this invention. It is a block diagram which shows the sensor device of the lighting system which concerns on 7th Embodiment of this invention. It is a sequence diagram of the lighting system which concerns on 7th Embodiment of this invention. It is a sequence diagram of the lighting system which concerns on 7th Embodiment of this invention. It is a sequence diagram of the lighting system which concerns on 7th Embodiment of this invention.

Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

The terms "first", "second", "third", etc. in the present disclosure are merely used as labels and are not necessarily intended to order those objects.

<First Embodiment>
1 to 7 show a lighting system according to the first embodiment of the present invention. The lighting system A1 of the present embodiment includes a plurality of lighting fixtures L, a mobile device Me, a control device Ct, and a management terminal Md. In addition, unlike this embodiment, the configuration may not include the management terminal Md.

FIG. 1 is a system configuration diagram showing a lighting system A1. FIG. 2 is a schematic layout diagram showing the lighting system A1. FIG. 3 is a block diagram showing a lighting fixture of the lighting system A1. FIG. 4 is a block diagram showing a mobile device Me of the lighting system A1. FIG. 5 is a block diagram showing a control device Ct of the lighting system A1. FIG. 6 is a block diagram showing a management terminal Md of the lighting system A1.

[Lighting fixture L]
The plurality of lighting fixtures L are used for indoor lighting, for example, and are installed at various places such as a ceiling, a wall surface, and a floor surface. Further, the lighting fixture L may have a configuration used for outdoor lighting. The specific form of the luminaire L is not limited in any way, and various forms such as alternative lighting for straight tube fluorescent lamps, high ceiling lighting, ceiling lights, downlights, base lights, spotlights, and the like can be appropriately adopted. In the following description, when the general configuration of the lighting fixture L is described, it is referred to as a lighting fixture L, and when a plurality of lighting fixtures L are distinguished, the reference numerals of the lighting fixture L1, ... May be used. The plurality of lighting fixtures L1 to Ln in FIG. 1 may have the same configuration, may have a part in common with each other, or may have different configurations from each other. In the following description, unless otherwise specified, a case where a plurality of lighting fixtures L1 to Ln have the same configuration will be described as an example. Further, FIG. 2 is a configuration example including nine lighting fixtures L1 to L9 (n = 9) for convenience of explanation.

FIG. 3 is a block diagram of the lighting fixture L. The lighting fixture L includes a light source unit 11, a control unit 12, a storage unit 13, a wireless communication module 14, and a power supply unit 15.

The light source unit 11 is a portion that performs a light emitting function in the lighting fixture L1. The specific configuration of the light source unit 11 is not limited in any way, and includes, for example, a substrate and a plurality of LEDs mounted in a row on the substrate. Further, the luminaire L1 appropriately has a transparent or translucent cover (not shown) that transmits light from the light source unit 11.

The control unit 12 is for controlling each unit of the luminaire L based on an instruction from the control device Ct or the like. The specific configuration of the control unit 12 is not particularly limited, and includes, for example, a CPU. The storage unit 13 is for storing information necessary for controlling the control unit 12, and includes, for example, a semiconductor memory. The storage unit 13 is not limited to the one built in the housing of the lighting fixture L (not shown), and may be detachably provided outside the housing of the lighting fixture L.

The wireless communication module 14 is for performing wireless communication with the control device Ct, other lighting equipment L, and the mobile device Me, and is a module for transmitting and receiving wireless signals. The wireless communication module 14 is connected to the control unit 12 by, for example, UART (Universal Asynchronous Receiver Transmitter) communication, but is not limited thereto. The wireless communication module 14 of the present embodiment has a first wireless communication unit 141 and a second wireless communication unit 142.

To exemplify the function of the wireless communication module 14, a signal from the control device Ct is received, and data (for example, a lighting control signal) included in the received signal is transmitted to the control unit 12. Further, an acknowledge signal indicating that the lighting control signal has been received is transmitted to the control device Ct. Further, a status information signal indicating the operating status of the lighting fixture L may be transmitted to the control device Ct.

In the present embodiment, the unique lighting fixture ID possessed by each of the plurality of lighting fixtures L is stored in the wireless communication module 14. Specific examples of the lamp ID are not particularly limited, and are, for example, a MAC (Media Access Control) address and location information. The lamp ID may be stored in any of the first wireless communication unit 141 and the second wireless communication unit 142, or in a component of the wireless communication module 14 other than these, or is stored in, for example, the storage unit 13. May be.

The first wireless communication unit 141 is for performing wireless communication using the first protocol with the control device Ct and other lighting equipment L. The communication frequency of wireless communication using the first protocol is not limited in any way, and examples thereof include a 920 MHz band, a 2.4 GHz band, and a 5 GHz band. Further, specific examples of the first protocol are not particularly limited, and examples thereof include Bluetooth (registered trademark) including BLE (Bluetooth Low Energy), Zigbee (registered trademark), Wi-Fi (registered trademark) and the like. In the present embodiment, a plurality of lighting fixtures L having a first wireless communication unit 141 and a control device Ct construct a communication network Cn1 which is a mesh network shown in FIG. Since the first protocol is used for transferring various data between a plurality of lighting fixtures L as described later, it is possible to construct a mesh network while ensuring the transfer speed and reliability required for the data transfer. The protocol is selected.

The second wireless communication unit 142 is for performing wireless communication with the mobile device Me using the second protocol. The communication frequency of wireless communication using the second protocol is not limited in any way, and examples thereof include a 920 MHz band, a 2.4 GHz band, and a 5 GHz band. Further, specific examples of the second protocol are not particularly limited, and examples thereof include Bluetooth (registered trademark) including BLE (Bluetooth Low Energy), Zigbee (registered trademark), Wi-Fi (registered trademark), and the like. In the illustrated example, the second wireless communication unit 142 is connected to the first wireless communication unit 141 by SPI (Serial Peripheral Interface) communication, but the present invention is not limited thereto. In the present embodiment, the lighting fixture L having the second wireless communication unit 142 and the corresponding sensor device Es form a communication network Cn2.

It is preferable to select the first protocol and the second protocol having different communication frequencies so that communication with each other does not interfere with each other. Further, it is preferable that the wireless communication by the first wireless communication unit 141 and the wireless communication by the second wireless communication unit 142 are alternately performed by different communication timings. As the wireless communication using the second protocol, for example, one having a shorter communication distance than the wireless communication using the first protocol may be selected.

When the wireless communication module 14 receives, for example, a request signal requesting data acquisition of the sensor device Es from the control device Ct by the first wireless communication unit 141, the wireless communication module 14 converts the request signal from the first protocol to the second protocol. A transfer signal is generated, and this transfer signal is transmitted from the control unit 12 to the sensor device Es.

Further, the wireless communication module 14 transmits a beacon signal. The beacon signal is a reference signal used for measuring the position of the mobile device Me, and includes identification information (lighting device ID) of the own device of the lighting device L. Further, the beacon signal may include a time stamp. This identification information may be position information that directly indicates the position of the lighting fixture L, or may be a MAC address or the like. When the beacon signal includes the MAC address as the identification information, the mobile device Me appropriately executes a process of converting the identification information into the position information of the lighting fixture L. In this embodiment, the beacon signal is transmitted by the second wireless communication unit 142 of the wireless communication module 14. The output interval of the beacon signal is set by, for example, a setting signal from Ct, and is, for example, 90 to 900 ms. By lengthening the output interval, the power consumption of the mobile device Me can be suppressed.

Further, when the second wireless communication unit 142 receives the position data transmitted from the mobile device Me, the transfer data is generated by converting the measurement data from the second protocol to the first protocol that can be transferred by wireless communication. , Transmit to the control device Ct. To give a specific example, the wireless communication module 14 detects from the protocol flag in the communication data that the position data from the mobile device Me is communication using the second protocol. Next, a predetermined process is performed according to the procedure according to the second protocol, and reception is performed by the second wireless communication unit 142. Then, transfer data is generated by converting the measurement data into a communication data format using the first protocol, and is transferred to the adjacent lighting fixture L on the communication network Cn1.

The power supply unit 15 is for supplying electric power necessary for operation to the light source unit 11, the control unit 12, the wireless communication module 14, and the like. The power supply unit 15 has, for example, a function as an AC / DC converter that converts commercial AC 100V or 200V power into DC power, a transformer function, and the like.

[Mobile device Me]
The mobile device Me is a device that can move to various places in the place where a plurality of lighting fixtures L are arranged by being held by a user or the like or by itself. The mobile device Me has a function of acquiring position information of its own device by receiving beacon signals from a plurality of lighting fixtures L. Specific examples of the mobile device Me are not limited to any, for example, a mobile terminal carried by the user, a tag worn by the user or attached to a cart of a commercial facility, or a cleaning robot capable of self-driving. A transfer robot and the like can be mentioned as appropriate. The example shown in FIG. 2 shows a case where the mobile device Me is a mobile terminal held by the user.

FIG. 4 is a block diagram when the mobile device Me is a mobile terminal, a cleaning robot, or the like. The mobile device Me of the present embodiment includes a display unit 51, a control unit 52, a storage unit 53, a wireless communication unit 54, and a power supply unit 55.

In the following description, when describing the general configuration of the mobile device Me, it may be referred to as a mobile device Me, and when distinguishing a plurality of mobile device Me, reference numerals such as mobile devices Me1 to Men may be appropriately used. The plurality of mobile devices Me1 to Men may have the same configuration, may have a part in common with each other, or may have different configurations from each other. In the following description, unless otherwise specified, a case where a plurality of mobile devices Me1 to Men have the same configuration will be described as an example.

The display unit 51 is for displaying information and images necessary for operating the mobile device Me and the like. The display unit 51 is, for example, a liquid crystal display or an organic EL display, and has a touch panel function in the present embodiment. Instead of the display unit 51 functioning as a touch panel, the mobile device Me may be separately provided with an operation device such as a keyboard or a mouse.

The wireless communication unit 54 is for performing wireless communication with the corresponding lighting fixture L using the above-mentioned second protocol. The lighting fixture L having the second wireless communication unit 142 and the mobile device Me form a communication network Cn2. In the illustrated example, one mobile device Me moves in a place where a plurality of lighting fixtures L are arranged, so that the plurality of lighting fixtures L and the mobile device Me can perform wireless communication using the second protocol at any time. It is possible. The signal received by the wireless communication unit 54 from the plurality of lighting fixtures L via the communication network Cn2 includes a beacon signal.

In this embodiment, the mobile device Me has a unique device ID. Specific examples of the device ID are not limited, and for example, a MAC (Media Access Control) address is used. The device ID may be stored in the wireless communication unit 54, or may be stored in, for example, the storage unit 53.

The control unit 52 is for controlling each unit of the mobile device Me. The specific configuration of the control unit 52 is not particularly limited, and includes, for example, a CPU. Further, the control unit 52 executes a process of acquiring the position information of the own device of the mobile device Me. The control unit 52 has three points based on, for example, the identification information of the plurality of lighting fixtures L included in the beacon signals from the plurality of lighting fixtures L received by the wireless communication unit 54 and RSSI which is the reception intensity of each beacon signal. Acquires the position information of the own device by the survey processing based on the survey method. When the identification information included in the beacon signal is the position information of the lighting fixture L, this position information is used for the survey processing. As another example, when the identification information is the MAC address of the lighting fixture L, the control unit 52 obtains the MAC address from, for example, the correspondence data between the MAC address and the position information stored in advance in the storage unit 53. The position information of the luminaire L is specified and used for the survey processing.

For example, when the request signal (transfer signal) received from the lighting fixture L includes the device ID of the own device, the request signal is transmitted to the control unit 52. The control unit 52 performs a survey process according to the request of the request signal, and acquires the position information of the own device. The control unit 52 generates position data including the device ID, the position information of the own device, the survey time (time stamp), and the like, and transmits the position data from the wireless communication unit 54.

Note that FIG. 10 shows a modified example of the lighting system A1 regarding the survey processing. In this modification, the survey processing is performed by a commercial cloud capable of communicating with the mobile device Me by wireless communication or the like. For example, the mobile device Me that has received the beacon signal transmits the identification information and RSSI of the beacon signal for each of the plurality of lighting fixtures L to the commercial cloud. The commercial cloud measures the position of the mobile device Me by surveying the identification information from RSSI based on the three-point survey method. Then, the position information of the mobile device Me is transmitted to the mobile device Me.

Further, when the mobile device Me is a mobile terminal, it may have a function of transmitting / receiving data to / from an external cloud or the like via a public communication network.

The storage unit 53 is for storing information such as programs and setting conditions necessary for controlling the control unit 52, and includes, for example, a semiconductor memory.

The power supply unit 55 is for supplying electric power necessary for operation to the display unit 51, the control unit 52, the wireless communication unit 54, and the like. The power supply unit 45 is, for example, a battery having a function as an AC / DC converter that converts commercial AC 100V or 200V power into DC power, a transformer function, or the like, or a rechargeable battery. The charging method of the battery may be one using a contact type charger or one using a non-contact type charger.

When the mobile device Me is, for example, a cleaning robot or a transfer robot capable of traveling by itself, the mobile device Me further has a drive unit (not shown). The drive unit is appropriately provided with a motor, gears, and the like, and is provided with a mechanism that exerts a driving force for self-driving and realizes traveling.

Further, when the mobile device Me is a tag, it may be configured not to include either or both of the above-mentioned display unit 51 and storage unit 53. Tags can be built into ID cards owned by employees, placed externally in carts such as stores, built into electrical appliances such as patrol robots and cleaners, and attached to chairs, desks, and cleaning tools in conference rooms. Used by. For example, when the tag is built in the ID card, the device ID is, for example, an employee number or the like and is stored in the storage unit 53. Further, the power supply unit 55 may be configured to generate electricity with a radio wave of 2.4 GHz (BLE, Wi-Fi (registered trademark), etc.). By using such a power supply unit 55, it is possible to generate electricity by using radio waves periodically transmitted in the lighting system A1, and it is possible to prevent the battery running out during use in the lighting system A1. ..

[Control device Ct]
The control device Ct controls the lighting of a plurality of lighting fixtures L1 to Ln and gives a position acquisition command to the mobile device Me. In the case of the present embodiment, the control device Ct may be installed in the same room as the room in which the plurality of lighting fixtures L1 to Ln are installed, or may be installed in another room or another floor of the same building. It may be installed in another building. When the control device Ct and the plurality of lighting fixtures L1 to Ln are separated to some extent, the control device Ct and the plurality of lighting fixtures L1 to Ln use not only wireless communication but also wired communication and wireless communication to each other. It may be configured to communicate. The lighting system A1 may be provided with at least one control device Ct, and may be provided with a plurality of control devices Ct in other configurations. The control device Ct of the present embodiment can communicate with both the plurality of lighting fixtures L and the management terminal Md.

FIG. 5 is a block diagram of the control device Ct. In the present embodiment, the control device Ct includes a display unit 21, a control unit 22, a storage unit 23, a wireless communication unit 24, and a power supply unit 25.

The display unit 21 is not always necessary in the lighting control method of the lighting system A1 described later, but is used for initial setting, maintenance, and the like of the control device Ct. The display unit 21 is, for example, a liquid crystal display or the like, and may further have a touch panel function. Further, instead of the display unit 21 functioning as a touch panel, the control device Ct may separately include an operation device such as a keyboard or a mouse.

The control unit 22 is a main component that controls the lighting of the plurality of lighting fixtures L1 to Ln and gives a position acquisition command to the mobile device Me, and is for controlling each part of the control device Ct. For example, the control unit 22 transmits a control signal to the wireless communication unit 24 so that the wireless communication unit 24 transmits the control signal to the target lighting fixture L based on the instruction signal received from the management terminal Md. The specific configuration of the control unit 22 is not particularly limited, and includes, for example, a CPU. The storage unit 23 is for storing information such as programs and setting conditions necessary for controlling the control unit 22, and includes, for example, a semiconductor memory or a hard disk drive.

The wireless communication unit 24 is for performing wireless communication with the first wireless communication unit 141 of the wireless communication modules 14 of the plurality of lighting fixtures L1 to Ln and the management terminal Md. The frequency band of the wireless communication unit 24 and the standard of the wireless communication to which it complies are wireless communication using the above-mentioned first protocol. In the example shown in FIG. 1, the control device Ct constitutes a communication network Cn1 together with a plurality of lighting fixtures L. Further, the control device Ct and the management terminal Md form a communication network Cn3. For the communication network Cn3, for example, Wi-Fi (registered trademark) is used. For example, the wireless communication unit 24 transmits control signals from the control unit 22 to the plurality of lighting fixtures L1 to Ln via the communication network Cn1. Further, the position acquisition signal to the mobile device Me is transmitted via the communication network Cn1. Alternatively, the instruction signal by the user transmitted from the management terminal Md via the communication network Cn3 is received. The received instruction signal is transmitted to the control unit 22. The control device Ct may have a wired or wireless communication circuit connected to the Internet in addition to the wireless communication unit 24.

The power supply unit 25 is for supplying electric power necessary for operation to the display unit 21, the control unit 22, the wireless communication unit 24, and the like. The power supply unit 25 has, for example, a function as an AC / DC converter that converts commercial AC 100V or 200V power into DC power, a transformer function, and the like.

The control device Ct has a lamp ID of a plurality of lighting fixtures L and a device ID of the mobile device Me, and these are stored in, for example, a storage unit 43. The lamp ID and device ID possessed by the control device Ct may be a MAC address as a lamp ID possessed by the lighting fixture L or a MAC address as a device ID possessed by the sensor device Es, and may be associated with these MAC addresses. It may be another lamp ID or device ID.

[Management terminal Md]
The management terminal Md is a terminal operated by the user in the lighting system A1. The management terminal Md is not particularly limited as long as it has portability, information processing capability, etc. that can realize user operations, and is, for example, a tablet, a smartphone, a notebook PC, or the like. When a plurality of lighting fixtures L constituting the lighting system A1 are installed in a wide area, the lighting system A1 may include a plurality of management terminals Md.

FIG. 6 is a block diagram of the management terminal Md. In the present embodiment, the management terminal Md includes a display unit 31, a control unit 32, a storage unit 33, a wireless communication unit 34, and a power supply unit 35.

The display unit 31 is for displaying information and images necessary for operating the management terminal Md and the like. The display unit 31 is, for example, a liquid crystal display or an organic EL display, and has a touch panel function in the present embodiment. Instead of the display unit 31 functioning as a touch panel, the management terminal Md may be separately provided with an operation device such as a keyboard or a mouse.

The control unit 32 is for controlling each unit of the management terminal Md. The specific configuration of the control unit 32 is not particularly limited, and includes, for example, a CPU. The storage unit 33 is for storing information such as programs and setting conditions necessary for controlling the control unit 32, and includes, for example, a semiconductor memory or a hard disk drive.

The wireless communication unit 34 transmits instruction signals such as lighting / extinguishing of the plurality of lighting fixtures L1 to Ln to the control device Ct, and receives status information signals of the plurality of lighting fixtures L1 to Ln from the control device Ct. do. Further, the wireless communication unit 34 receives the position data of the mobile device Me and the display request signal of the position data from the control device Ct. The frequency band of the wireless communication unit 34 and the conforming wireless communication standard may be the same as or different from the above-mentioned first wireless communication unit 141 and wireless communication unit 24, for example, Wi-Fi (registered trademark). ) Is selected. The wireless communication unit 34 may be a wireless communication module built in a tablet or the like as a management terminal Md, or may be an external wireless communication module connected to a USB terminal or the like. In the present embodiment, the communication network Cn3 is constructed by the management terminal Md and the control device Ct. The communication network Cn3 may perform wireless communication using the same first protocol as the communication network Cn1.

The power supply unit 35 is for supplying electric power necessary for operation to the display unit 31, the control unit 32, the wireless communication unit 34, and the like. The power supply unit 35 is, for example, a rechargeable battery.

Next, an example of the control method by the lighting system A1 will be described below. 6 and 7 are timing charts of the beacon signal of the lighting system A1, and FIGS. 8 and 9 are sequence diagrams showing an operation example of the lighting system A1.

First, as shown in FIG. 8, a request signal is transmitted from the management terminal Md to the mobile device Me to acquire position information (step S1). Specifically, when the user operates the display unit 31 of the management terminal Md, the control unit 32 generates a command instructing the mobile device Me to acquire the measurement data. The control unit 32 transmits the command as a request signal from the wireless communication unit 34 to the control device Ct by Wi-Fi (registered trademark). The acquisition of the position information of the mobile device Me is not limited to the example executed by the request from the management terminal Md, and may be executed by the request independently issued from the control device Ct. For example, the mobile device Me may execute the position information. It may be executed according to a predetermined schedule or according to the operating conditions.

The control device Ct receives the request signal from the management terminal Md by the wireless communication unit 24. The control unit 22 generates request data including the device ID, time information, etc. included in the command. This request data is transmitted from the wireless communication unit 24 to the lighting fixture L1 closest to the control device Ct among the plurality of lighting fixtures L, for example, via the communication network Cn1 which is a mesh network (step S2).

In the luminaire L1 that has received the request data, the request data is transferred from the first wireless communication unit 141 of the wireless communication module 14 to the next luminaire L such as another adjacent luminaire L (step S3). Further, the luminaire L1 converts the request data into the second protocol and transmits the request data via the communication network Cn2. For example, when the mobile device Me is present in the vicinity of the lighting fixture L1, the mobile device Me can receive the request data. In this example, the case where the request data is not transmitted from the lighting fixture L1 to the mobile device Me will be described.

Request data is sequentially transferred between a plurality of lighting fixtures L in the communication network Cn1, and received by the wireless communication module 14 of the lighting fixture Ln. The control unit 12 of the lighting fixture Ln converts the received request data into request data according to the second protocol, and transmits the received request data from the second wireless communication unit 142 of the wireless communication module 14 via the communication network Cn2 (step S4). ..

In the example of FIG. 8, the request data from the lighting fixture Ln is received by the wireless communication unit 54 of the mobile device Me via the communication network Cn2. In the example shown in FIG. 2, the luminaire Ln is, for example, a luminaire L7 or a luminaire L8. When the device ID that identifies the operation target included in the request data is recognized as the device ID of the own device, the control unit 52 of the mobile device Me is a survey for acquiring (estimating) position information according to the request data. Perform processing (step S5). This surveying process is a process based on the three-point surveying method using the beacon signals from the plurality of lighting fixtures L described above. By this survey processing, the control unit 52 acquires the position information of the own device. The surveying process may be a process completed by the mobile device Me, or may be a result of processing on the commercial cloud by transferring data to the commercial cloud.

FIG. 7 is a transmission timing chart of beacon signals of a plurality of lighting fixtures L used for survey processing. The timing at which the line graph rises is the timing at which the beacon signals of the lighting fixtures L1 to L9 shown in FIG. 2 are transmitted. Each of the lighting fixtures L1 to L9 periodically transmits a beacon signal, for example, every 300 ms. Further, the lighting fixtures L1, L5, L9, the lighting fixtures L2, L6, L7 and the lighting fixtures L3, L4, L8 have different beacon signal transmission timings, and for example, a time interval of 100 ms is provided. There is. Therefore, the mobile device Me receives the beacon signal at each of the three different timings, and receives the beacon signals from the nine lighting fixtures L at the maximum. Although the beacon signals are received at different timings, if the time interval is, for example, about 100 ms, it is possible to avoid unreasonably lowering the accuracy of the survey processing of the mobile device Me.

The grouping of the lighting fixtures L1, L5, L9, the lighting fixtures L2, L6, L7, and the lighting fixtures L3, L4, L8 was biased to one of the groups when the arrangement shown in FIG. 2 was assumed. This is to avoid including only the lighting fixture L. The beacon signal transmission timing setting may be set at the time of initial introduction of a plurality of lighting fixtures L by, for example, transmitting a setting signal from the control device Ct to each lighting fixture L, or may be appropriately set during normal use. May be good. Alternatively, the setting process may be performed in each device for the initial introduction of the plurality of lighting fixtures L.

In such a configuration, one of the two lighting fixtures L having different beacon signal transmission timings corresponds to the first lighting fixture of the present invention, and the other corresponds to the second lighting fixture.

Next, as shown in FIG. 9, the control unit 52 of the mobile device Me generates, for example, position data Dp including the device ID, position information, survey time (time stamp) of the mobile device Me, and the wireless communication unit 44. Is transmitted via the communication network Cn2 (step S6).

In the communication network Cn1, for example, the lighting fixture Ln closest to the mobile device Me receives the position data Dp via the communication network Cn2. The wireless communication module 14 of the luminaire Ln receives the position data Dp by detecting that it is the second protocol from the protocol flag in the position data Dp and performing processing according to the procedure according to the protocol. Then, the transfer data Dt is generated by converting the position data Dp into a communication data format using the first protocol, and is transferred to the adjacent lighting fixture L on the communication network Cn1 (step S7).

In the communication network Cn1 which is a mesh network, the transfer data Dt sequentially transferred between the plurality of lighting fixtures L is received by the wireless communication module 14 of the lighting fixture L1. The luminaire L1 transmits the transfer data Dt to the control device Ct (step S8).

When the control device Ct receives the transfer data Dt, the control device Ct converts the device ID, position information, survey time (time stamp), etc. of the mobile device Me included in the transfer data Dt into a wireless signal, and the management terminal via the communication network Cn3. It is transmitted to Md (step S9).

In the management terminal Md, the wireless communication unit 34 receives the wireless signal transmitted from the control device Ct. The control unit 32 displays, for example, the device ID of the mobile device Me, the position information, the survey time (time stamp), and the like on the display unit 31 based on the information included in the wireless signal received by the wireless communication unit 34 (step S10). ). For the display on the display unit 31, for example, a diagram similar to the layout diagram shown in FIG. 2 is displayed on the display unit 31, and an icon indicating the mobile device Me at a position corresponding to the position information of the mobile device Me acquired in this layout diagram, etc. Is displayed. These displays may be processed and displayed in a form that is easy for the user of the management terminal Md to understand, or any information may be intentionally omitted and displayed. Further, as the display format, a character display, an icon display, or a display in which these are combined can be appropriately adopted.

Next, the operation of the lighting system A1 will be described.

According to the present embodiment, as shown in FIG. 7, the timing at which the luminaire L1 and the luminaire L2 transmit the beacon signal is different from each other. Therefore, the mobile device Me can more reliably distinguish and receive the beacon signal from the luminaire L1 and the beacon signal from the luminaire L2. Therefore, according to the lighting system A1, interference of the beacon signal can be suppressed, and the position information of the mobile device Me can be acquired more accurately. Further, as understood from the present embodiment, when the number of the plurality of lighting fixtures L is larger, it is preferable to set the transmission timing of the beacon signal by dividing it into more timings for suppressing interference.

Further, the first wireless communication unit 141 and the second wireless communication unit 142 of the wireless communication module 14 of the lighting fixture L alternately perform their respective wireless communications. As a result, it is possible to suppress radio wave interference between the wireless communication using the first protocol by the first wireless communication unit 141 and the wireless communication using the second protocol by the second wireless communication unit 142.

As in the modified example shown in FIG. 10, the mobile device Me is not limited to executing the surveying process of the position of the own device within the own device, and even if a commercial cloud is made to execute a part of the surveying process. good. This has the advantage that the system configuration of the lighting system A1 can be set in a wider variety of ways.

11-29 show other embodiments of the present invention. In these figures, the same or similar elements as those in the above embodiment are designated by the same reference numerals as those in the above embodiment.

<Second Embodiment>
11 and 12 show a transmission timing chart and a sequence diagram of a beacon signal of the lighting system according to the second embodiment of the present invention. In the present embodiment, any one of the plurality of luminaires L is set to the non-transmission mode in which the beacon signal is not transmitted, which corresponds to the third luminaire in the present invention. In the example shown in FIG. 11, the lighting fixtures L3, L4, and L8 correspond to the third lighting fixture. The other lighting fixtures L1, L2, L5, L6, L7, and L9 are set to the transmission mode for transmitting the beacon signal.

The specific process for setting the lighting fixtures L3, L4, and L8 to the non-transmission mode is not limited. FIG. 12 shows a setting example based on a request from the management terminal Md. Unlike this, for example, by transmitting a setting signal from the control device Ct to each luminaire L, it may be set at the time of initial introduction of the plurality of luminaires L, or may be appropriately set at the time of normal use. Alternatively, the setting process may be performed in each device for the initial introduction of the plurality of lighting fixtures L.

As shown in FIG. 12, the lighting fixtures L3, L4, and L8 are selected in the management terminal Md as the target to be set to the non-transmission mode, and the mode setting is such that these lighting fixtures are set to OFF so as not to transmit the beacon signal. The request command is transmitted (step S11). The control device Ct creates transfer data including the fixture ID, mode setting command, time stamp, etc. of the lighting fixture L to be set based on the request signal from the management terminal Md, and transmits the transfer data via the communication network Cn1 ( Step S12). The luminaire L1 confirms that the luminaire ID of the received transfer data is different from its own luminaire ID, and transfers the transfer data to the next luminaire L (step S13). When the lighting fixture L3 recognizes that the fixture ID of its own fixture is included in the fixture ID of the received transfer data, it turns off the beacon signal (non-transmission mode) and sends a status signal indicating that the setting has been changed to the communication network. It is transmitted to Cn1 (step S14). Further, the transferred data is transmitted to the next luminaire L (step S15). Similarly, when the lighting fixture L4 that has received the transfer data recognizes that the fixture ID of its own fixture is included in the fixture ID of the received transfer data, it turns off the beacon signal (non-transmission mode) and sets the status signal to the communication network. It is transmitted to Cn1 (step S16). Further, the transferred data is transmitted to the next luminaire L (step S17). After that, this process is taken over by another luminaire L, and the luminaire L8 is set to the non-transmission mode in the same manner as the luminaires L3 and L4.

Also in this embodiment, it is possible to suppress the interference of the beacon signal and acquire the position information of the mobile device more accurately. Further, it is possible to suppress the power consumption of the lighting fixtures L3, L4 and L8 in which the non-transmission mode is set. In the arrangement shown in FIG. 2, the lighting fixtures L3, L4, and L8 are not arranged unevenly in any of the regions. This is preferable in order to avoid a decrease in the accuracy of the survey processing of the mobile device Me while setting the non-transmission mode. Further, in the lighting system A2, a non-transmission mode lighting fixture L3, L4, L8 that does not transmit a beacon signal and a transmission mode lighting fixture L1, L2, L5, L6, L7, L9 are arranged. Regarding the lighting fixtures L1, L2, L5, L6, L7, L9 in the transmission mode, the transmission timing of the beacon signal between the lighting fixtures L1, L5, L9 and the lighting fixtures L2, L6, L7 is the same as the above-mentioned lighting system A1. The settings are synchronized so that they are different from each other, and have the effect of suppressing interference of the beacon signal.

<Third Embodiment>
13 and 14 show a sequence diagram of the lighting system according to the third embodiment of the present invention. In this embodiment, the clock unit Ut is used. The clock unit Ut has, for example, a function of acquiring time information by receiving FM radio waves and a function of transmitting the time information to the control device Ct by, for example, Wi-Fi (registered trademark). The clock unit Ut transmits the time information (step S21), and the control device Ct receives the time information. The control device Ct creates time data by converting the time information into the first protocol, and transmits the time data to the plurality of lighting fixtures L via the communication network Cn1 (step S22). Upon receiving the time information, the luminaire L1 synchronizes the time of its own device with the time data, and transfers the time data to the next luminaire L (step S23). Upon receiving the time information, the lighting fixture Ln synchronizes the time of its own device with the time data, converts the time data into a second protocol, and transmits the time data to the mobile device Me via the communication network Cn2 (step S24). The mobile device Me that receives the time data via the communication network Cn2 synchronizes the time of its own device with the time data. Further, the mobile device Me may perform a surveying process of the position of the own device (step S25).

Then, as shown in FIG. 14, the mobile device Me transmits the position data Dp including the time stamp based on the synchronized time information, as in the procedure in the lighting system A1 described above (step S26). Upon receiving the position data Dp, the luminaire Ln converts the position data into transfer data Dt and transfers the position data to the next luminaire L (step S27). When the luminaire L1 receives the transferred transfer data Dt, the luminaire L1 transfers the transfer data Dt to the control device Ct (step S28). Upon receiving the transfer data Dt, the control device Ct acquires the position information of the mobile device Me together with the time stamp synchronized with the clock unit Ut (step S29).

Also in this embodiment, it is possible to suppress the interference of the beacon signal and acquire the position information of the mobile device more accurately. Further, according to the present embodiment, it is possible to set the respective times of the plurality of lighting fixtures L and the mobile device Me more accurately. This is preferable for more accurately acquiring the position of the mobile device Me at each time, for example, when the mobile device Me shifts from moment to moment.

<Fourth Embodiment>
15 to 17 are a system configuration diagram, a block diagram, and a sequence diagram of the lighting system according to the fourth embodiment of the present invention. The lighting system A4 of the present embodiment includes a mobile device Me that can travel by itself, and includes, for example, a mobile device Me configured as a cleaning robot. Further, the lighting system A4 includes a power supply unit Up. The power supply unit Up is fixedly installed at a suitable place in a place where a plurality of lighting fixtures L are arranged, and supplies electric power necessary for the mobile device Me to travel by itself. In this case, the mobile device Me includes a battery or the like for storing the electric power supplied from the power supply unit Up in the power supply unit 55.

As shown in FIG. 16, the power supply unit Up has a relay switch 61, a control unit 62, a wireless communication unit 64, and a power supply unit 65.

The relay switch 61 is, for example, a portion to which the mobile device Me is connected, and functions to switch ON / OFF of the power supply to the mobile device Me. The control unit 62 controls the relay switch 61, and controls the relay switch 61 based on the received control data. The wireless communication unit 64 can perform wireless communication using the second protocol. The power supply unit 65 is for supplying the power required for operation to the relay switch 61, the control unit 62, the wireless communication unit 64, and the like, and further supplies the power required for the mobile device Me. The power supply unit 65 is connected with, for example, commercial AC 100V or 200V power, and has a function as an AC / DC converter that converts these powers into DC power, a transformer function, and the like.

As shown in FIG. 17, in the lighting system A4, for example, when the mobile device Me needs power supply, the mobile device Me moves to the power supply unit Up (step S31). The mobile device Me stores, for example, the position where the power supply unit Up is installed in advance. When the mobile device Me arrives at the power supply unit Up and is in a state where power can be supplied, the mobile device Me executes the position survey processing of the own device and transmits the position data Dp (step S32). The luminaire Ln that has received the position data Dp creates transfer data Dt converted into a first protocol that can be transferred by the communication network Cn1 of the plurality of luminaires L, and transfers the data to the next luminaire L (step S33). .. The luminaire L1 that has received the transfer data Dt transfers the transfer data Dt to the control device Ct (step S34). The control device Ct that has received the transfer data Dt in step S35 confirms that the mobile device Me is in a position where power can be supplied from the power supply unit Up (step S36). Next, the control device Ct transmits an instruction to start power supply (power supply ON instruction) to the power supply unit Up via a communication network Cn3 such as Wi-Fi (registered trademark) (step S37). Upon receiving the power supply ON instruction, the power supply unit Up starts power supply to the mobile device Me (step S38).

Also in this embodiment, it is possible to suppress the interference of the beacon signal and acquire the position information of the mobile device more accurately. Further, in a state where the mobile device Me has reached a position where power can be supplied from the power supply unit Up, it is possible to more reliably execute power supply from the power supply unit Up. Further, when the mobile device Me is not present at a position where power can be supplied, it is possible to suppress the unnecessary operation of the power supply unit Up.

<Fifth Embodiment>
18 and 19 are a system configuration diagram and a sequence diagram of the lighting system according to the fifth embodiment of the present invention. The lighting system A5 of the present embodiment includes a mobile device Me that can travel by itself, and includes, for example, a mobile device Me configured as a cleaning robot. Further, the lighting system A5 includes a plurality of lighting fixtures L11, L12, L13, L21, L22, and L23. The plurality of lighting fixtures L11, L12, and L13 are arranged on the same floor of the building, and in the illustrated example, they are arranged on the first floor. On the other hand, the plurality of lighting fixtures L21, L22, and L23 are installed on a floor different from the plurality of lighting fixtures L11, L12, and L13, and are arranged on the second floor in the illustrated example. The cleaning robot as a mobile device Me can move back and forth between the first floor and the second floor by running on its own or with the assistance of an elevator or other lifting device.

The lighting fixtures L11 and L21 of the present embodiment each function as a gate module. The gate module functions as a module forming a small network (cluster) together with a part of the lighting fixture L in the communication network Cn1 which is a mesh network. Wireless communication between the plurality of clusters is performed by the gate modules. The lighting fixtures L11 and L21 functioning as gate modules can be constructed, for example, by appropriately changing the setting program of the wireless communication module 14 of the lighting fixture L having the above-described configuration.

In the illustrated example, the cluster Cn11 is constructed by the lighting fixtures L11, L12, and L13 installed on the same floor. Further, the cluster Cn12 is constructed by the lighting fixtures L21, L22, and L23 installed on the same floor. Further, in the present embodiment, the second wireless communication unit 142 of the lighting equipment L11, L12, L13 constructs the communication network Cn21 of the second protocol, and the second wireless communication unit of the lighting equipment L21, L22, L23. 142 constructs the communication network Cn22 of the second protocol. The radio frequencies of the communication network Cn21 and the communication network Cn22 are set to be different from each other. In the present embodiment, the radio frequencies transmitted and received by the second wireless communication unit 142 of the plurality of lighting fixtures L11, L12, L13 (first lighting fixture) arranged on the first floor and the plurality of lighting fixtures arranged on the second floor. The radio frequencies transmitted and received by the second wireless communication unit 142 of L21, L22, and L23 (second lighting fixture) are different from each other. That is, the second radio communication unit 142 of the lighting fixtures L11, L12, and L13 has a radio frequency set to 2.450 GHz, and the first beacon signal is transmitted at this frequency. On the other hand, the second radio communication unit 142 of the lighting fixtures L21, L22, and L23 has a radio frequency set to 2.460 GHz, and the second beacon signal is transmitted at this frequency.

Next, the operation of the lighting system A5 will be described below.

For example, the mobile device Me acquires the position information of the own device through steps S1 to S5 in the lighting system A1 described with reference to FIG. At this time, the mobile device Me is performing cleaning and the like on the first floor. Therefore, the mobile device Me receives the first beacon signal from the lighting fixtures L11, L12, and L13, and performs the survey processing based on the first beacon signal. Since the mobile device Me receives the first beacon signal, it knows that its own device is located on the first floor. Next, the mobile device Me creates position data Dp based on the position information on the first floor of the own device, and transmits the position data Dp via the communication network Cn21 (step S41). The luminaire L13, which has received the position data Dp via the communication network Cn21, creates and transfers the transfer data Dt (step S42). The luminaire L11 that has received the transfer data Dt transfers the transfer data Dt to the control device Ct (step S43). The control device Ct recognizes the position on the first floor of the mobile device Me from the received transfer data Dt, and transmits, for example, the position information to the management terminal Md (step S44). The management terminal Md displays, for example, the position of the mobile device Me on the display unit 31 based on the received position information (step S45). In this display, for example, the floor maps of the first floor and the second floor are displayed on the display unit 31, and an icon or the like indicating the mobile device Me is displayed at the corresponding position in the area corresponding to the first floor.

On the other hand, the mobile device Me moves from the first floor to the second floor at a timing parallel to or before or after steps S42 to S45 (step S46). Then, upon arriving at the second floor, for example, the mobile device Me acquires the position information of the own device through steps S1 to S5 in the lighting system A1 described with reference to FIG. At this time, the mobile device Me receives the second beacon signal from the lighting fixtures L21, L22, and L23, and performs the survey processing based on the second beacon signal. Since the mobile device Me receives the second beacon signal, it knows that its own device is located on the second floor. Next, the mobile device Me creates position data Dp based on the position information on the second floor of the own device, and transmits the position data Dp via the communication network Cn22 (step S47). The lighting fixture L23 that has received the position data Dp via the communication network Cn22 creates and transfers the transfer data Dt (step S48). The luminaire L21 that has received the transfer data Dt transfers the transfer data Dt to the control device Ct (step S49). From the received transfer data Dt, the control device Ct recognizes the position on the second floor where the mobile device Me is located on the second floor, and transmits, for example, the position information to the management terminal Md (step S50). The management terminal Md displays, for example, the position of the mobile device Me on the display unit 31 based on the received position information (step S51). In this display, for example, an icon or the like indicating a mobile device Me is displayed at a corresponding position in an area corresponding to the second floor on the floor map displayed on the display unit 31.

Also in this embodiment, it is possible to suppress the interference of the beacon signal and acquire the position information of the mobile device more accurately. Further, the communication network Cn21 and the communication network Cn22 have different radio frequencies from each other. As a result, the mobile device Me can more accurately and more accurately determine whether it is located on the first floor or the second floor depending on whether the radio frequency of the received beacon signal is the radio frequency of the communication network Cn21 or the communication network Cn22. It can be easily determined.

<Sixth Embodiment>
20 to 22 are schematic layout diagrams and sequence diagrams of the lighting system according to the sixth embodiment of the present invention. The lighting system A6 of the present embodiment includes one or more surveillance cameras Cm. Each of the surveillance cameras Cm monitors the state of a specific area, and corresponds to the surveillance device of the present invention. In the example shown in FIG. 20, a plurality of surveillance cameras Cm are arranged. The specific area monitored by each monitoring camera Cm is, for example, a part of a belt conveyor on which a load to be worked is sequentially conveyed. Further, the lighting system A6 includes a plurality of mobile devices Me. The plurality of mobile devices Me of the present embodiment can be used as ID cards or wearable terminals worn by, for example, workers who work on a plurality of packages transported by a belt conveyor, managers of equipment such as belt conveyors, and the like. It is configured. In the figure, for convenience of explanation, a case where nine lighting fixtures L1 to L9 and four mobile devices Me1 to Me4 are provided will be described as an example, but when the lighting system A6 is applied to a larger factory or the like, a plurality of lighting systems A6 will be described. The number of lighting fixtures L is remarkably large, and may exceed 100, for example. In addition, the number of a plurality of mobile devices Me may be significantly increased.

Next, the operation of the lighting system A6 will be described below.

In the lighting system A6, for example, through steps S1 to S5 in the lighting system A1 described with reference to FIG. 8, each of the mobile devices Me1 to Me4 acquires the position information of its own device and transmits the position data Dp ( Step S61). These position data Dp are sequentially received by the plurality of lighting fixtures L, converted into transfer data Dt, and transmitted (step S62). The luminaire L1 receives these transfer data Dt and transfers them to the control device Ct (step S63). The control device Ct transmits the position data of the mobile devices Me1 to Me4 to the management terminal Md based on the received transfer data Dt (step S64). The management terminal Md displays the mobile devices Me1 to Me4 on, for example, a work map of the display unit 31 (step S65). The work map may be, for example, a diagram similar to the content illustrated in FIG.

Next, it is detected that an abnormality has occurred in the specific area Ar of the work monitoring area shown in FIG. 20, for example, by image analysis of the captured image of the surveillance camera Cm (step S66). The monitoring process and the detection process may be executed by a control device installed separately (not shown in the figure), or may be executed by the control device Ct. The management terminal Md that has received the abnormality detection information identifies the mobile device Me located near the specific area Ar by the identification process of the control unit 32 or the operation of the user (step S67). In the example shown in FIG. 20, the mobile device Me4 is applicable. The management terminal Md transmits the information of the specified mobile device Me4 to the control device Ct, and the control device Ct transmits a command to notify the lighting fixture L in the vicinity of the mobile device Me4 of the abnormality (step S68). In the example shown in FIG. 20, the lighting fixture L9 corresponds to this. The abnormality notification data is transferred from the lighting fixture L1 to the lighting fixture L9 via the communication network Cn1 (step S69). The lighting fixture L9 that has received the abnormality notification data turns on the abnormality notification based on the abnormality notification data (step S70). The abnormality notification lighting may be, for example, blinking lighting different from the normal lighting state, lighting of a color indicating an abnormality, or the like. By this abnormality notification lighting, the abnormality is notified to the worker or the equipment manager located in the vicinity of the specific area Ar.

FIG. 23 shows different examples of abnormality notification. When the above-mentioned steps S66 and S67 are executed, the control device Ct creates a command to leave the abnormality in the mobile device Me4 located in the vicinity of the specific area Ar of the work monitoring area, and notifies the abnormality via the communication network Cn1. It is transmitted as data (step S71). The lighting fixture L1 that has received the abnormality notification data transfers the abnormality notification data via the communication network Cn1 (step S72). The luminaire L9 receives the transferred abnormality notification data, converts it into a second protocol, and transmits it via the communication network Cn2. The mobile device Me4 receives the abnormality notification data from the lighting fixture L9 via the communication network Cn2. In addition to the transmission from the lighting fixture L9, the lighting fixture L1 and the like can transmit the abnormality notification data to the communication network Cn2, and the mobile device Me can transmit the abnormality notification data transmitted from the lighting fixture L other than the lighting fixture L9. May be received via the communication network Cn2. The mobile device Me that has received the abnormality notification data executes the abnormality notification process. Examples of the abnormality notification process include a process of sounding a buzzer and displaying a message, an icon, or the like indicating an abnormality on the display unit 51. By this abnormality notification processing, the abnormality is notified to the worker who wears the mobile device Me4 and the equipment manager.

Also in this embodiment, it is possible to suppress the interference of the beacon signal and acquire the position information of the mobile device more accurately. Further, by using the lighting system A6, a user (worker) near the specific area Ar in which the abnormality has occurred can be directed to the specific area Ar more quickly. This is preferable for improving work efficiency.

<7th Embodiment>
24 to 29 are a system configuration diagram, a schematic layout diagram, a block diagram, and a sequence diagram of the lighting system according to the seventh embodiment of the present invention. The lighting system A7 of the present embodiment includes a plurality of sensor devices Es. In the example shown in FIG. 25, a plurality of sensor devices Es are arranged. Further, the lighting system A7 includes a plurality of mobile devices Me. The plurality of mobile devices Me of the present embodiment are configured as mobile terminals held by the user in a place where the plurality of lighting fixtures L are arranged. In the figure, for convenience of explanation, a case where nine lighting fixtures L1 to L9, four mobile devices Me1 to Me4, and three sensor devices Es1 to Es3 are provided will be described as an example, but in a larger-scale lighting system A7. The number of the plurality of lighting fixtures L is remarkably large, and may exceed 100, for example. In addition, the number of a plurality of mobile devices Me and a plurality of sensor devices Es may be significantly increased.

[Sensor device Es]
The sensor device Es is a device that measures a physical quantity related to the installed environment and transmits the measurement result by wireless communication. FIG. 26 is a block diagram of the sensor device Es. The sensor device Es of the present embodiment includes a sensor unit 41, a control unit 42, a storage unit 43, a wireless communication unit 44, and a power supply unit 45. The specific configuration of the sensor device Es is not limited in any way, and in addition to the configuration installed as a dedicated device, a building to which the lighting system A7 is applied (office building, distribution device, store such as commercial facility, condominium, etc.) It may be in the form of an air conditioner installed in a house, etc., a control switch for a lighting fixture, or the like.

In the following description, when the general configuration of the sensor device Es is described, it is referred to as the sensor device Es, and when distinguishing a plurality of sensor devices Es, the reference numerals such as the sensor device Es1 and the sensor device Esn may be appropriately used. be. The plurality of sensor devices Es1 and the sensor device Esn may have the same configuration, may have a part in common with each other, or may have different configurations from each other. In the following description, unless otherwise specified, a case where a plurality of sensor devices Es1 and sensor devices Esn have the same configuration will be described as an example.

The sensor unit 41 functions to measure physical quantities related to the environment of the sensor device Es. The function of the sensor unit 41 is not particularly limited, and examples thereof include various functions such as a temperature sensor, a humidity sensor, an illuminance sensor, a motion sensor, and an air volume sensor. Further, the measurement principle of the sensor unit 41 is not limited in any way, such as a non-contact method using an optical method or an electromagnetic method, a contact method, or a method of measuring by monitoring the state of a specific part built in the sensor unit 41. , Various methods can be adopted.

The control unit 42 is for controlling each unit of the sensor device Es. The specific configuration of the control unit 42 is not particularly limited, and includes, for example, a CPU. The storage unit 43 is for storing information such as programs and setting conditions necessary for controlling the control unit 42, and includes, for example, a semiconductor memory.

The wireless communication unit 44 is for performing wireless communication with the corresponding lighting fixture L using the above-mentioned second protocol. The lighting fixture L having the second wireless communication unit 142 and the corresponding sensor device Es form a communication network Cn2.

In this embodiment, the sensor device Es has a unique device ID. Specific examples of the device ID are not limited, and for example, a MAC (Media Access Control) address is used. The device ID may be stored in the wireless communication unit 44, or may be stored in, for example, the storage unit 43.

The power supply unit 45 is for supplying electric power necessary for operation to the sensor unit 41, the control unit 42, the wireless communication unit 44, and the like. The power supply unit 45 is, for example, a battery having a function as an AC / DC converter that converts commercial AC 100V or 200V power into DC power, a transformer function, or the like, or a rechargeable battery.

When the request signal (transfer signal) received from the corresponding lighting fixture L via the communication network Cn2 includes the device ID of the own device, the wireless communication unit 44 transmits the request signal to the control unit 42. The control unit 42 transmits a measurement request to the sensor unit 41 according to the request of the request signal. The sensor unit 41 outputs the measured value obtained as a result of the measurement to the control unit 42. The control unit 42 generates measurement data including the device ID, the position information of the sensor device Es, the type of the sensor device Es, the unit of the measurement data, the measurement value, the measurement time (time stamp), and the like, and transmits the measurement data from the wireless communication unit 44. do.

Next, the operation of the lighting system A7 will be described below with reference to FIGS. 27 to 29.

In the lighting system A7, for example, through steps S1 to S5 in the lighting system A1 described with reference to FIG. 8, as shown in FIG. 27, each of the mobile devices Me1 to Me4 acquires the position information of its own device. The position data Dp is transmitted (steps S81 and S82). For example, the position data Dp4 from the mobile device Me4 is transmitted to the lighting device L9 (step S81), and the position data Dp1 of the mobile device Me1 is transmitted to the lighting device L1 (step S82). The luminaire L9 transfers the position data Dp4 to the luminaire L1 (step S83). In the present embodiment, the luminaire L1 receives all of the position data Dp1 to Dp4 from the mobile device Me1 to the mobile device Me4 (step S84). Then, the position data Dp1 to Dp4 are collectively transferred to the control device Ct (step S85). The control device Ct acquires the positions of the mobile devices Me1 to Me4 by receiving the position data Dp1 to Dp4 (step S86).

Next, as shown in FIG. 28, the measurement process is performed by the sensor device Es (steps S87 and S88). The measurement process by the sensor device Es may be executed by each sensor device Es at a predetermined time or time interval. Alternatively, for example, a request from the management terminal Md is transmitted to a nearby lighting fixture L via the communication network Cn1 constructed by the control device Ct and the plurality of lighting fixtures L, and this is transmitted to each sensor device via the communication network Cn2. It may be executed by receiving Es.

When the device ID for specifying the operation target included in the request data is recognized as the device ID of the own device, each sensor device Es performs processing according to the supply data. In the present embodiment, the sensor unit 41 of the sensor device Es3 is a temperature sensor and a humidity sensor, and measures the temperature and humidity of the environment in which the sensor device Es3 is installed. Next, the control unit 42 of the sensor device Es3 may use, for example, the device ID of the sensor device Es3, the position information of the sensor device Es3, the type of the sensor device Esn, the unit of measurement data, the measured value acquired from the sensor unit 41, and the measurement time ( The measurement data Dm3 including the time stamp) and the like is generated and transmitted from the wireless communication unit 44 via the communication network Cn2 (step S87). Similarly, the sensor device Es1 generates the measurement data Dm1 and transmits it via the communication network Cn2 (step S88). Upon receiving the measurement data Dm3, the luminaire L9 converts the measurement data Dm3 into transfer data Dt and transfers the measurement data Dm3 to the luminaire L1 via the communication network Cn1 (step S89). The luminaire L1 receives the measurement data Dm1 to Dm3 or the transfer data Dt corresponding thereto (step S90). Then, the measurement data Dm1 to Dm3 are collectively transferred to the control device Ct (step S91). The control device Ct compares the temperature, humidity, etc., which are the measured values included in the measurement data Dm1 to Dm3, with a predetermined table or the like stored in the storage unit 23 of the control device Ct, if necessary. The WBGT (Wet Bulb Globe Temperature) value for each place where each of the sensor devices Es1 to Es3 is installed is calculated (step S92).

Next, as shown in FIG. 29, the control device Ct determines, for example, the degree of safety of the user (worker) at each place based on the WBGT value at each place where the sensor devices Es1 to Es3 are installed. When the WBGT value at a certain place is a value at which it is judged that it is not preferable to continue the work, it is specified as an area requiring notification. In the present embodiment, the specific region Ar4 is specified as the target region (step S93). Then, the control device Ct identifies the mobile device Me4 as the mobile device Me closest to the specific area Ar4 by comparing the position information of the mobile devices Me1 to Me4 with the position of the specific area Ar4 (step S94). Then, the abnormality notification data for the mobile device Me4 is transmitted (step S95). This abnormality notification data is transferred by the luminaire L1 (step S96) and received by the luminaire L9. Then, the abnormality notification data is transmitted from the lighting fixture L9 to the mobile device Me4 via the communication network Cn2. The mobile device Me4 notifies the user of the abnormality based on the content included in the received abnormality notification data (step S98). The mobile device Me4 performs an abnormality notification process such as sounding a buzzer or displaying a message or an icon indicating an abnormality on the display unit 51. By this abnormality notification processing, an abnormality is notified to a user or a worker wearing the mobile device Me4. Further, in addition to these processes, the control device Ct has an abnormality for a predetermined time (for example, 15 minutes) in the area specified as requiring abnormality notification based on the WBGT value, and a certain mobile device Me stays at the same position. If this is the case, it is possible to presume that the user is in poor physical condition and separately perform a notification process to direct another worker.

Also in this embodiment, it is possible to suppress the interference of the beacon signal and acquire the position information of the mobile device more accurately. In addition, the degree of safety of the area can be evaluated based on the WBGT value and the like, and the safety of the user (worker) can be ensured more reliably. Further, for example, when a specific worker stays in the specific area Ar4 in which the abnormality is notified for a predetermined time or longer, another worker can be immediately sent to the specific area Ar4 by the specific area Ar4.

The lighting system according to the present invention is not limited to the above-described embodiment. The specific configuration of each part of the lighting system according to the present invention can be freely redesigned. In addition, design changes can be made by combining the above-described embodiments.

A1, A4, A5, A6, A7: Lighting system 11: Light source unit 12: Control unit 13: Storage unit 14: Wireless communication module 15: Power supply unit 21: Display unit 22: Control unit 23: Storage unit 24: Wireless communication unit 25: Power supply unit 31: Display unit 32: Control unit 33: Storage unit 34: Wireless communication unit 35: Power supply unit 41: Sensor unit 42: Control unit 43: Storage unit 44: Wireless communication unit 45: Power supply unit 51: Display unit 52: Control unit 53: Storage unit 54: Wireless communication unit 55: Power supply unit 61: Relay switch 62: Control unit 64: Wireless communication unit 65: Power supply unit 141: First wireless communication unit 142: Second wireless communication unit Ar: Specific area Cm: Surveillance camera Cn1, Cn2, Cn21, Cn22: Communication network Cn3: Communication network Cn11, Cn12: Cluster Ct: Control device Dm1, Dm2, Dm3: Measurement data Dp, Dp1, Dp2, Dp3, Dp4: Position data Dt : Transfer data Es, Es1, Es2, Es3, Esn: Sensor devices L, L1, L11, L12, L13, L2, L21, L22, L23, L3, L4, L5, L6, L7, L8, L9: Lighting equipment Ln : Lighting equipment Md: Management terminal Me, Me1, Me2, Me3, Me4: Mobile device Up: Power supply unit Ut: Clock unit

Claims (7)

Multiple lighting fixtures, each of which has a wireless communication module that transmits a beacon signal containing the identification information of its own fixture,
A control device that controls the plurality of lighting fixtures, and
A mobile device that receives the beacon signal from the plurality of lighting fixtures and acquires the position information of the own device.
The plurality of luminaires include a first luminaire and a second luminaire.
A lighting system in which the first luminaire and the second luminaire transmit the beacon signal at different timings from each other. The plurality of luminaires further include a third luminaire.
The lighting system according to claim 1, wherein the third luminaire has a non-transmission mode in which the beacon signal is not transmitted. The wireless communication module of the lighting fixture uses a first wireless communication unit that performs mutual wireless communication with the plurality of lighting fixtures and wireless communication with the control device using the first protocol, and a second protocol. It has a second wireless communication unit that performs wireless communication with the mobile device, and has.
The luminaire alternately performs wireless communication of the first wireless communication unit using the first protocol and wireless communication of the second wireless communication unit using the second protocol, according to claim 1 or The lighting system according to 2. The mobile device transmits the position information of the own device to one of the plurality of lighting fixtures by wireless communication using the second protocol.
The luminaire that has received the position information among the plurality of luminaires converts the position information from the second protocol into transfer data that can be transferred by wireless communication using the first protocol, and converts the transfer data into transfer data. The lighting system according to claim 3, wherein the data is transferred from the first wireless communication unit to the control device directly or via the other lighting equipment. The third or four claim, wherein the radio frequency transmitted and received by the second radio communication unit of the first lighting fixture and the radio frequency transmitted and received by the second radio communication unit of the second lighting fixture are different from each other. Lighting system. With the multiple mobile devices,
Further equipped with a plurality of monitoring devices, each of which monitors the state of a specific area of the environment in which the plurality of lighting fixtures are installed.
Based on the abnormal value information of the monitoring device, the control device provides abnormal value information to at least one of the lighting fixture installed in the specific area and the mobile device close to the specific area among the plurality of mobile devices. The lighting system according to any one of claims 1 to 5. With the multiple mobile devices,
Further, a plurality of sensor devices, each of which detects the state of a specific area of the environment in which the plurality of lighting fixtures are installed, are provided.
Based on the detection information of the sensor device, the control device transmits broadcast information to at least one of the lighting fixture installed in the specific area and the mobile device close to the specific area among the plurality of mobile devices. The lighting system according to any one of claims 1 to 5.

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