JP6933074B2 - Lighting device - Google Patents

Description

Embodiments of the present invention relate to emergency or inductive lighting devices.

Conventionally, an emergency or guidance lighting device that lights up in an emergency such as a power failure or a disaster is known.

Japanese Unexamined Patent Publication No. 2004-185978

The conventional lighting device described above merely performs emergency lighting, and cannot perform various operations other than emergency lighting.

An object of the present invention is to provide an emergency or guidance lighting device capable of performing an operation according to the content of an abnormality.

The lighting device according to the embodiment is an emergency or guidance lighting device, and includes a storage battery, a communication unit, and a control unit. The communication unit sends and receives information. When an abnormal signal is acquired, the control unit controls the storage battery or the communication unit according to the content of the acquired abnormal signal.

According to the present invention, it is possible to perform an operation according to the content of the abnormality.

FIG. 1 is a diagram showing an outline of a lighting device according to an embodiment. FIG. 2 is a diagram showing a configuration example of the lighting device according to the embodiment. FIG. 3 is a diagram showing a configuration example of a storage unit according to the embodiment. FIG. 4 is a diagram showing a configuration example of the control unit according to the embodiment. FIG. 5 is a flowchart showing an example of emergency response processing according to the embodiment. FIG. 6 is a diagram showing an example of provided information according to the first modification in the embodiment. FIG. 7 is a diagram showing an example of emergency response processing according to the second modification in the embodiment. FIG. 8 is a diagram showing an example of emergency response processing according to the third modification in the embodiment. FIG. 9 is a sequence diagram showing an example of a series of inspection processes according to the sixth modification in the embodiment.

The lighting device 10 according to the embodiment described below is an emergency or guidance lighting device, and includes a storage battery 13, a communication unit 12, and a control unit 16. The communication unit 12 transmits and receives information. When the control unit 16 acquires an abnormal signal, the control unit 16 controls the storage battery 13 or the communication unit 12 according to the content of the acquired abnormal signal.

Further, in the lighting device 10 according to the embodiment described below, when the control unit 16 acquires an abnormal signal, the information transmitted from the communication unit 12 is emergency or guidance information from the first information. Change to the second information.

Further, in the lighting device 10 according to the embodiment described below, the control unit 16 changes the transmission frequency of information by the communication unit 12 when an abnormal signal is acquired.

Further, in the lighting device 10 according to the embodiment described below, the control unit 16 interrupts the transmission of information by the communication unit 12 when an abnormal signal is acquired, and when a preset time elapses, the control unit 16 interrupts the transmission of information. The transmission of information by the communication unit 12 is restarted.

Further, in the lighting device 10 according to the embodiment described below, when the control unit 16 acquires an abnormal signal, the information transmitted from the communication unit 12 is emergency or guidance information from the first information. When the first process of changing to the second information, the second process of changing the transmission frequency of the information by the communication unit 12, and the transmission of the information by the communication unit 12 are interrupted and a preset time elapses. , At least one of the third processes for resuming the transmission of information by the communication unit 12 is performed according to the remaining capacity of the storage battery 13.

Further, in the lighting device 10 according to the embodiment described below, when the control unit 16 acquires the recovery signal, the control unit 16 controls the storage battery 13 or the communication unit 12 before acquiring the abnormal signal of the state of the own device. Return to the state of.

[Embodiment]
<Outline of lighting equipment>
First, an outline of the lighting device 10 according to the embodiment of the present invention will be described with reference to FIG. FIG. 1 is a diagram showing an outline of the lighting device 10 according to the embodiment. FIG. 1 shows an example in which a lighting device 10 installed in a commercial facility such as a department store provides information to a visitor terminal 40 of a visitor 4.

The lighting device 10 shown in FIG. 1 is an emergency lighting device such as an emergency light. The lighting device 10 as an emergency lighting device is installed in the facility at predetermined intervals and illuminates the room or the corridor for evacuation guidance in the event of an emergency such as a power outage or a disaster. The lighting device 10 may be a guide light installed to indicate an emergency exit or an evacuation passage. Further, the lighting device 10 may be a lighting device that always lights up as a lighting device and illuminates a room or a corridor for evacuation guidance in the event of a power failure.

The lighting device 10 includes a light source 11 such as an emergency lamp and a storage battery 13. For example, when the power supply from the external power source 6 is cut off, the light source 11 is turned on by using the power supplied from the storage battery 13. By illuminating the inside of the facility.

Further, the lighting device 10 according to the embodiment includes a communication unit 12. The lighting device 10 according to the embodiment uses the communication unit 12, for example, to provide information about a product sold at a product sales floor where the own device is installed (hereinafter, referred to as “product information”) in a communication area. It can be broadcast within 100. The product information includes, for example, time sale information and new product arrival information. The lighting device 10 broadcasts product information into the communication area 100 at intervals of, for example, once or twice per second.

The product information broadcast in the communication area 100 is received by the visitor terminal 40 of the visitor 4 located in the communication area 100. The visitor terminal 40 is, for example, a smartphone, a tablet terminal, or the like, and notifies the visitor 4 of the product information by displaying the received product information on the display.

The product information transmitted from the lighting device 10 can be useful information for the visitor 4 who is considering purchasing the product. However, product information cannot be said to be useful information even in an emergency such as a power outage or a disaster.

Therefore, in the lighting device 10 according to the embodiment, it is decided that the information transmitted from the communication unit 12 is different between the normal time and the emergency time such as a power failure or a disaster. For example, when the voltage supplied from the external power source 6 falls below the threshold value, an abnormal signal indicating a power failure is generated inside the lighting device 10. When the lighting device 10 acquires such an abnormal signal, the lighting device 10 controls the storage battery 13 to supply electric power to the communication unit 12. As a result, the communication unit 12 can function even during a power failure.

Then, the lighting device 10 switches the information transmitted from the communication unit 12 from the product information to the evacuation route information by controlling the communication unit 12. The evacuation route information is information indicating an evacuation route in the facility where the lighting device 10 is installed. The evacuation route information is received by the visitor terminal 40 of the visitor 4 located in the communication area 100 of the lighting device 10 and displayed on the display of the visitor terminal 40. The evacuation route information may be audio information output from the speaker of the visitor terminal 40. As a result, the lighting device 10 can provide the visitor 4 with useful evacuation route information in an emergency such as a power outage or a disaster.

<Construction of lighting device>
Next, the configuration of the lighting device 10 according to the embodiment will be described with reference to FIG. FIG. 2 is a diagram showing a configuration example of the lighting device 10 according to the embodiment.

As shown in FIG. 2, the lighting device 10 includes a light source 11, a communication unit 12, a storage battery 13, an acquisition unit 14, a storage unit 15, and a control unit 16. The external power source 6 shown in FIG. 2 is, for example, a power source supplied from an electric power company or the like. Further, the external power source 6 may be a power source supplied from the photovoltaic power generation system.

The light source 11 is, for example, an emergency lamp, and is turned on when the power supplied from the external power source 6 is significantly reduced, that is, in the event of a power failure. As the light source 11, various light sources such as a fluorescent lamp and an LED (Light Emitting Diode) may be used depending on the purpose.

The communication unit 12 is, for example, a beacon, and can perform both two-way communication and one-way communication as described above. The communication unit 12 performs wireless communication by, for example, a communication method according to a standard of BLE (Bluetooth (registered trademark) Low Energy).

The communication unit 12 operates by the electric power supplied from the external power source 6. On the other hand, the communication unit 12 operates by the electric power supplied from the storage battery 13 described later in the event of a power failure. In this way, the communication unit 12 can operate even during a power failure.

The storage battery 13 is used as an emergency power source in the event of a power failure. The storage battery 13 is removable from the lighting device 10. The storage battery 13 is charged by the electric power supplied from the external power source 6.

The acquisition unit 14 is a sensor that acquires various information of the lighting device 10. For example, the acquisition unit 14 outputs an abnormal signal indicating that a power failure has occurred to the control unit 16 when the voltage supplied from the external power supply 6 falls below the threshold value. Further, the acquisition unit 14 outputs a recovery signal indicating recovery from a power failure to the control unit 16 when the voltage supplied from the external power supply 6 falls below the threshold value and becomes equal to or higher than the threshold value. Further, the acquisition unit 14 acquires information on the remaining capacity of the storage battery 13 and outputs the information to the control unit 16. In addition, the acquisition unit 14 may acquire information regarding the lighting status of the light source 11, or may acquire temperature information inside the lighting device 10.

The storage unit 15 is, for example, a storage device such as a DRAM (Dynamic Random Access Memory), a SRAM (Static Random Access Memory), or a flash memory. FIG. 3 is a diagram showing a configuration example of the storage unit 15 according to the embodiment. As shown in FIG. 3, the storage unit 15 stores the first provided information 151 and the second provided information 152.

The first provided information 151 and the second provided information 152 are information broadcast from the communication unit 12. The first provided information 151 is information that is normally broadcast, such as the product information described above. Further, the second provided information 152 is information to be broadcast in an emergency, for example, the evacuation route information described above. The first provided information 151 is not limited to the product information, and the second provided information 152 is not limited to the evacuation route information.

The control unit 16 is a controller that controls each unit of the lighting device 10. The control unit 16 may be a processor such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit), or an integrated circuit such as an FPGA (Field Programmable Gate Array) or an ASIC (Application Specific Integrated Circuit). May be good. Further, the control unit 16 may be composed of one element or may be composed of a plurality of elements. When the control unit 16 is composed of a plurality of elements, the plurality of elements may be arranged at remote locations in the lighting device 10. For example, a plurality of elements may be mounted on different substrates.

FIG. 4 is a diagram showing a configuration example of the control unit 16 according to the embodiment. As shown in FIG. 4, the control unit 16 includes a lighting unit 161, a storage battery control unit 162, and a communication control unit 163. These are functional blocks showing the functions of the control unit 16. These functional blocks may be software blocks or hardware blocks. For example, each of the above-mentioned functional blocks may be one software module realized by software (including a microprogram), or may be one circuit block on a semiconductor chip (die). Of course, each functional block may be one processor or one integrated circuit. The method of configuring the functional block is arbitrary.

The lighting unit 161 controls lighting and extinguishing of the light source 11. The lighting unit 161 is supplied from the storage battery 13 as an emergency response process when, for example, an abnormal signal indicating that a power failure has occurred (hereinafter referred to as “first abnormal signal”) is acquired from the acquisition unit 14. The light source 11 is turned on by using the electric power.

The storage battery control unit 162 controls the storage battery 13. For example, the storage battery control unit 162 charges the storage battery 13 using the electric power supplied from the external power source 6. The storage battery control unit 162 may not charge the storage battery 13 when the stored amount of the storage battery 13 exceeds a predetermined amount.

Further, when the storage battery control unit 162 acquires the first abnormal signal from the acquisition unit 14, that is, when a power failure occurs, the storage battery control unit 162 uses the power stored in the storage battery 13 as the light source 11, the communication unit 12, and the communication unit 12 as an emergency response process. It is supplied to the control unit 16 and the like. Further, the storage battery control unit 162 stops the power supply from the storage battery 13 when the recovery signal is acquired from the acquisition unit 14, that is, when the power is restored from the power failure, and the external power source 6, the light source 11, the communication unit 12, and the storage battery control unit 162 stop the power supply. Power is supplied to the control unit 16 and the like.

The communication control unit 163 controls the communication unit 12. Specifically, when the communication control unit 163 acquires an abnormal signal, the communication control unit 163 controls the communication unit 12 according to the content of the acquired abnormal signal as an emergency response process, thereby transmitting information to be broadcast from the communication unit 12. Perform the switching process.

<Procedure for emergency response processing>
Next, the procedure of the emergency response processing executed by the lighting device 10 according to the embodiment will be described with reference to FIG. FIG. 5 is a flowchart showing an example of emergency response processing according to the embodiment.

As shown in FIG. 5, the lighting device 10 determines whether or not the first abnormal signal, which is an abnormal signal indicating that a power failure has occurred, has been acquired from the acquisition unit 14 (step S101). When the first abnormal signal is acquired in step S101 (step S101, Yes), the lighting device 10 controls the storage battery 13 to start the power supply from the storage battery 13 (step S102). Further, the lighting device 10 lights the light source 11 by using the electric power supplied from the storage battery 13 (step S103).

On the other hand, when the first abnormal signal is not acquired in step S101 (steps S101, No), the lighting device 10 determines whether or not the second abnormal signal has been acquired (step S104).

Here, the second abnormal signal is information indicating the occurrence of an abnormality different from the first abnormal signal, that is, an emergency situation other than a power failure. For example, the second abnormal signal is a signal indicating the occurrence of a fire. Such a second abnormal signal can be acquired, for example, from a fire alarm or the like having a communication function installed in the communication area 100 of the lighting device 10 via the communication unit 12.

In step S104, when the lighting device 10 acquires the second abnormal signal (step S104, Yes), the lighting device 10 shifts the process to step S105.

In step S105, the lighting device 10 performs the provision information switching process. Specifically, the lighting device 10 switches the information broadcast from the communication unit 12 from the first provision information 151 such as product information to the second provision information 152 such as evacuation route information by controlling the communication unit 12. When the process of step S105 is completed, or when the second abnormal signal is not acquired in step S104 (step S104, No), the lighting device 10 ends the process.

As described above, the lighting device 10 according to the embodiment is an emergency or guidance lighting device, and includes a storage battery 13, a communication unit 12, and a control unit 16. The communication unit 12 transmits and receives information. When the control unit 16 acquires an abnormal signal, the control unit 16 controls the storage battery 13 or the communication unit 12 according to the content of the acquired abnormal signal. That is, when the control unit 16 of the lighting device 10 acquires the first abnormal signal, the control unit 16 controls the storage battery 13 to start the power supply from the storage battery 13 and controls the communication unit 12 to perform the provision information switching process. I do. On the other hand, when the control unit 16 of the lighting device 10 acquires the second abnormal signal, the control unit 16 controls the communication unit 12 to perform the provision information switching process without controlling the storage battery 13. Therefore, according to the emergency or guidance lighting device 10 according to the embodiment, it is possible to perform an operation according to the content of the abnormality.

Further, in the lighting device 10 according to the embodiment, when the control unit 16 acquires the first abnormal signal or the second abnormal signal, the information transmitted from the communication unit 12 is the first provided information 151 (of the first information). Change from (one example) to the second provided information 152 (an example of the second information) which is the information for emergency or guidance. As a result, the lighting device 10 can provide the visitor 4 with the second provided information 152 such as evacuation route information useful in an emergency such as a power failure or a disaster.

<Modification example>
The above-described embodiment shows an example, and various modifications and applications are possible.

(First modification)
The lighting device 10 may have different contents of the second provided information 152 broadcast from the communication unit 12 depending on the combination of the acquisition status of the first abnormal signal and the second abnormal signal. FIG. 6 is a diagram showing an example of provided information according to the first modification in the embodiment.

For example, when the lighting device 10 acquires both the first abnormal signal indicating the occurrence of a power failure and the second abnormal signal indicating the occurrence of an emergency other than the power failure, the lighting device 10 controls the communication unit 12 to control the communication unit 12. Broadcasts the first evacuation route information into the communication area 100. Further, when the lighting device 10 acquires the first abnormal signal and does not acquire the second abnormal signal, that is, when only a power failure occurs, the lighting device 10 controls the communication unit 12 to control the communication unit 12. Broadcasts the second evacuation route information into the communication area 100. Further, the lighting device 10 controls the communication unit 12 when the second abnormal signal is acquired and the first abnormal signal is not acquired, that is, when a power failure has not occurred although it is an emergency. , The communication unit 12 broadcasts the third evacuation route information into the communication area 100. On the other hand, when neither the first abnormal signal nor the second abnormal signal is acquired, the lighting device 10 broadcasts the first provided information 151 such as product information from the communication unit 12.

As described above, the lighting device 10 may have different contents of the second provided information 152 broadcast from the communication unit 12 depending on the combination of the acquisition status of the first abnormal signal and the second abnormal signal. As a result, it is possible to provide the visitor 4 with appropriate information according to each situation in an emergency situation.

(Second modification)
FIG. 7 is a diagram showing an example of emergency response processing according to the second modification in the embodiment. In the above-described embodiment and the first modification, an example of performing a provision information switching process for switching the information broadcast from the communication unit 12 from the first provision information 151 to the second provision information 152 as an emergency response process will be described. bottom. However, the lighting device 10 does not necessarily need to perform the provided information switching process as an emergency response process. That is, the lighting device 10 may continue to broadcast product information in an emergency.

However, for example, in the event of a power failure, it is not preferable that the limited electric power of the storage battery 13 is consumed by transmitting the product information. Therefore, as shown in FIG. 7, the lighting device 10 may change the transmission frequency of the product information by the communication unit 12 when the first abnormal signal indicating the occurrence of a power failure is acquired. Specifically, when the lighting device 10 acquires the first abnormal signal, the lighting device 10 changes the transmission frequency of the product information from the first transmission frequency to the second transmission frequency lower than the first transmission frequency. By reducing the frequency of transmitting product information in this way, the limited electric power of the storage battery 13 can be effectively used, and the light source 11 can be kept lit for a longer period of time.

(Third variant)
FIG. 8 is a diagram showing an example of emergency response processing according to the third modification in the embodiment. As shown in FIG. 8, the control unit 16 of the lighting device 10 interrupts the transmission of information by the communication unit 12 when the first abnormal signal is acquired, and when a preset time elapses, the communication unit 16 The transmission of information by 12 may be restarted.

As a result, similarly to the second modification described above, the limited electric power of the storage battery 13 can be effectively used, and the light source 11 can be kept lit for a longer period of time.

(Fourth modification)
The control unit 16 of the lighting device 10 may perform at least one of the processes described in the above-described embodiment and the first to third modifications as an emergency response process according to the remaining capacity of the storage battery 13. The control unit 16 acquires information on the remaining capacity of the storage battery 13 from the acquisition unit 14 (see FIG. 2).

For example, when the remaining capacity of the storage battery 13 is larger than the first remaining capacity, the control unit 16 of the lighting device 10 may perform the provision information switching process. Further, when the remaining capacity of the storage battery 13 is equal to or less than the first remaining capacity and larger than the second remaining capacity (<first remaining capacity), the control unit 16 broadcasts from the communication unit 12 in the provision information switching process. The information to be provided may be switched from the first provided information 151 to the second provided information 152, and the second provided information 152 may be transmitted with a transmission frequency lower than that of the first provided information 151. Further, when the remaining capacity of the storage battery 13 is equal to or less than the second remaining capacity and larger than the third remaining capacity (<second remaining capacity), the control unit 16 is a communication unit as in the third modification. The transmission of the information by the communication unit 12 may be interrupted, and the transmission of the information by the communication unit 12 may be restarted when the preset time has elapsed.

As described above, in the lighting device 10 according to the fourth modification, when the control unit 16 acquires the first abnormal signal, the information transmitted from the communication unit 12 is urgently used or guided from the first provided information 151. The first process of changing to the second provided information 152, which is the information for the user, the second process of changing the frequency of information transmission by the communication unit 12, and the information transmission by the communication unit 12 are interrupted and set in advance. When the time has elapsed, at least one of the third processes for resuming the transmission of information by the communication unit 12 may be performed according to the remaining capacity of the storage battery 13. As a result, it is possible to perform appropriate emergency response processing according to the remaining capacity of the storage battery 13.

(Fifth variant)
In the above-described embodiment and the first to fourth modifications, when the control unit 16 acquires the recovery signal, the control unit 16 controls the storage battery 13 or the communication unit 12 before acquiring the abnormal signal of the state of the own device. It may be returned to the state of.

For example, in FIG. 5, when a recovery signal is acquired from the acquisition unit 14 or a fire alarm (not shown) after performing the provision information switching process (step S105), the control unit 16 broadcasts information from the communication unit 12. You may return to the first provided information 151. Further, the control unit 16 may return the transmission frequency of the product information to the first transmission frequency when the recovery signal is acquired from the acquisition unit 14 in FIG. 7. Further, in FIG. 8, when the recovery information is acquired from the acquisition unit 14 within the period during which the broadcast of the product information is interrupted, the control unit 16 may return to the state of transmitting the product information.

In this way, when the recovery signal is acquired, the state of the own device is automatically returned to the state before the abnormality signal was acquired, so that, for example, an employee of the facility where the lighting device 10 is installed, etc. Can save the trouble of manually returning to the original state.

(Sixth variant)
In the above-described embodiment and each modification, an example in which the lighting device 10 performs one-way communication using the communication unit 12 has been described, but the lighting device 10 performs two-way communication using the communication unit 12. Is also possible. For example, the lighting device 10 may transmit product information and evacuation route information in response to a request from the visitor terminal 40.

Further, the lighting device 10 can also perform a series of inspection processes with the inspector terminal owned by the inspector by using two-way communication by the communication unit 12. FIG. 9 is a sequence diagram showing an example of a series of inspection processes according to the sixth modification in the embodiment. Here, the lighting device 10 that receives the inspection request from the inspector terminal 30 is referred to as “lighting device 10A”, and the lighting device 10 that receives the inspection request from the lighting device 10A is referred to as “lighting device 10B”.

For example, a plurality of lighting devices 10 are installed in the facility. Each lighting device 10 mutually transmits and receives data to and from another lighting device 10 located in the communication area, thereby forming a mesh network having each lighting device 10 as a node.

As shown in FIG. 9, the inspector terminal 30 owned by the inspector transmits an inspection request to the lighting device 10A among the plurality of lighting devices 10 (step S11). The lighting device 10A to which the inspection request is transmitted is arbitrary. For example, the inspector causes the inspector terminal 30 to send an inspection request to the lighting device 10A installed at the location closest to him / her.

The lighting device 10A, which receives the inspection request from the inspector terminal 30 via the communication unit 12, performs a communication establishment process with the inspector terminal 30 using identification information, a password, and the like, and communicates with the inspector terminal 30. When communication is established in, the inspection request is transferred to another lighting device 10B located in the communication area (step S12). Further, the lighting device 10A starts the inspection operation (step S13). The inspection operation is, for example, an operation of lighting the light source 11 continuously for a time specified by a law.

Subsequently, when the lighting device 10B receives the inspection request from the lighting device 10A, the lighting device 10B transfers the inspection request received from the lighting device 10A to another lighting device 10 (not shown) located in the communication area (step S14). .. Further, the lighting device 10B starts the inspection operation (step S15).

In this way, the inspection request is transmitted to all of the plurality of lighting devices 10, and all of the plurality of lighting devices 10 start the inspection operation. The lighting devices 10A and 10B may transfer the inspection request (steps S12 and S14) after starting the inspection operation (steps S13 and S15).

After that, the inspector terminal 30 transmits a result transmission request to the lighting device 10A (step S16). The lighting device 10A, which has received the result transmission request from the inspector terminal 30, performs a communication establishment process with the inspector terminal 30. After that, when communication is established with the inspector terminal 30, the lighting device 10A transfers the result transmission request to another lighting device 10B located in the communication area (step S17). Further, the lighting device 10B transfers the result transmission request received from the lighting device 10A to another lighting device 10 (not shown) located in the communication area (step S18). As a result, the result transmission request is transmitted to all of the plurality of lighting devices 10.

Upon receiving the result transmission request, the lighting device 10 transmits the inspection result of its own device to another lighting device 10 located in the communication area. Further, each lighting device 10 transfers the inspection result of the other device received from the other lighting device 10 to the lighting device 10 located in the communication area (steps S19 and S20). Each lighting device 10 stores the inspection result of its own device and the received inspection result of another device in the storage unit 15. As a result, all of the plurality of lighting devices 10 are in a state of holding all the inspection results of the plurality of lighting devices 10.

After that, the lighting device 10A transmits all the inspection results of the plurality of lighting devices 10 to the inspector terminal 30 (step S21).

In this way, the inspector can perform a batch inspection of a plurality of lighting devices 10 installed in the facility by using the two-way communication function by the communication unit 12 of the lighting device 10.

When the lighting device 10 acquires the first abnormal signal or the second abnormal signal during the inspection operation, the lighting device 10 switches the communication method of the communication unit 12 from two-way communication to one-way communication, and the communication area 100 from the communication unit 12 The second provided information 152 may be broadcast within. Thereby, useful information such as evacuation route information in an emergency can be provided to the inspector of the lighting device 10.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, as well as in the scope of the invention described in the claims and the equivalent scope thereof. Further, these embodiments and modifications thereof can be appropriately combined as long as the processing contents do not contradict each other.

4 Visitors 10 Lighting equipment 11 Light source 12 Communication unit 13 Storage battery 14 Acquisition unit 15 Storage unit 16 Control unit 30 Inspector terminal 40 Visitor terminal 100 Communication area

Claims (2)

An emergency or guidance lighting device
With a storage battery;
With the communication unit that sends and receives information;
When an abnormal signal is acquired, a control unit that controls the storage battery or the communication unit according to the content of the acquired abnormal signal;
Equipped with
When the control unit acquires the abnormal signal, the first process of changing the information transmitted from the communication unit from the first information to the second information which is emergency or guidance information, the communication unit. A second process of changing the frequency of information transmission by the communication unit, and a third process of interrupting the transmission of information by the communication unit and restarting the transmission of information by the communication unit when a preset time has elapsed. A lighting device that performs at least one of the processes according to the remaining capacity of the storage battery. The lighting device according to claim 1, wherein when a recovery signal is acquired, the control unit controls the storage battery or the communication unit to return the state of the own device to the state before acquiring the abnormal signal.

Images