JP2021106141A - Lighting device and lighting system - Google Patents

Abstract

To provide a lighting device capable of securing the battery capacity required for lighting a light source.SOLUTION: A lighting device 13 includes a light source 20, a battery 21 for storing electric power, a communication unit 23 for communicating with an external device 15, and a control unit 25. When an external power supply 11 is supplied, the control unit 25 lights the light source 20 by the power of the external power supply 11 and drives the communication unit 23, and when the external power supply 11 is shut off, the control unit 25 uses the power of a predetermined capacity of the total capacity of the battery 21 to drive the communication unit 23.SELECTED DRAWING: Figure 1

Description

An embodiment of the present invention relates to a lighting device including a battery and a lighting system using the lighting device.

Conventionally, there is an emergency lighting device as a lighting device equipped with a battery. In this lighting device, the light source is turned on by the electric power of the external power source when the external power source is supplied, and the light source is turned on by the electric power of the battery when the power failure is determined when the external power source is cut off.

In addition, a wall switch may be interposed between the external power supply and the lighting device. In this case, the lighting device determines that there is a power failure due to the wall switch being turned off. Therefore, there is a lighting device that communicates with a separately provided external device that detects a power failure when the external power supply is cut off by turning off the wall switch, and turns on the light source by the power of the battery by the power failure signal from the external device.

In such a lighting device, when the external power supply is cut off, the power of the battery communicates with the external device and consumes the power of the battery. Therefore, when the cutoff time of the external power supply is long, the power stored in the battery is used. The amount may decrease and the battery capacity required to light the light source may not be secured.

Japanese Unexamined Patent Publication No. 2016-219152

An object of the present invention is to provide a lighting device and a lighting system capable of securing a battery capacity required for lighting a light source.

The lighting device of the embodiment includes a light source, a battery for storing electric power, a communication unit for communicating with an external device, and a control unit. When the external power supply is supplied, the control unit lights the light source and drives the communication unit by the power of the external power supply, and when the external power supply is cut off, the control unit drives the communication unit using the power of a predetermined capacity of the total capacity of the battery. ..

According to the lighting device of the embodiment, it can be expected that the capacity of the battery required for lighting the light source is secured.

It is a block diagram of the lighting system using the lighting apparatus which shows one Embodiment. It is a perspective view which shows the example of the same lighting apparatus (a) (b). It is a table which shows the operation state of the lighting apparatus as above. It is a schematic diagram of the capacity of the battery of the lighting device of the same as above.

Hereinafter, one embodiment will be described with reference to the drawings.

FIG. 1 shows the lighting system 10. The lighting system 10 is used in a lighting environment such as an office, an office, or a general house.

The lighting system 10 remotely controls a wall switch 12, which is a power switch connected to an external power source 11 such as a commercial AC power source, a lighting device 13 connected to the external power source 11 via the wall switch 12, and the lighting device 13. It includes a remote controller 14 to operate and an external device 15 connected to an external power supply 11 without going through a wall switch 12.

The wall switch 12 is installed on a wall surface such as a room. The wall switch 12 can be turned on and off, and the connection between the external power source 11 and the lighting device 13 is closed and opened in response to the on and off operations, and the power of the external power source 11 is supplied to the lighting device 13. Cut off.

Further, the lighting device 13 is installed on, for example, a ceiling surface. Although FIG. 1 shows an example in which one lighting device 13 is connected to the wall switch 12, a plurality of lighting devices 13 may be connected to the wall switch 12.

The lighting device 13 includes a light source 20, a battery 21 for storing electric power, a power supply circuit 22 for lighting the light source 20 by the electric power of the external power source 11 or the battery 21, a communication unit 23 for communicating with the remote controller 14 and the external device 15, and a notification unit for notifying. 24, and a control unit 25 for controlling the lighting device 13 are provided.

The light source 20 may include a normal light source used for lighting in a normal time when the external power supply 11 is supplied, and an emergency light source used for lighting in an emergency when the external power supply 11 is cut off due to a power failure. However, normal use and emergency use may be common. As the light source 20, for example, a light emitting element such as an LED or an organic EL is used.

As the battery 21, a rechargeable secondary battery such as a Ni-Cd battery, a nickel-hydrogen battery, or a lithium-ion battery is used.

The power circuit 22 is connected to the wall switch 12. The power supply circuit 22 lights the light source 20 by the power of the external power supply 11 supplied when the wall switch 12 is turned on, charges the battery 21, and lights the light source 20 by the power stored in the battery 21 when the external power supply 11 fails. Make it possible.

The communication unit 23 is a wireless communication unit that wirelessly communicates with the remote controller 14 and the external device 15 using a wireless signal using radio waves, infrared rays, or the like as a wireless medium. For example, an optical signal such as infrared rays is used for wireless communication with the remote controller 14, and a radio signal is used for wireless communication with the external device 15. The communication unit 23 is arranged on the lower surface side of the lighting device 13 so that it can receive (transmit and receive) an optical signal. The communication unit 23 is driven by receiving the power of the external power source 11 or the power of the battery 21 by the control unit 25. Although the communication unit 23 communicates with the external device 15, it may communicate with the remote controller 14 or only receive.

The notification unit 24 is, for example, a monitor lamp, and is provided in a place that can be seen from the outside of the lighting device 13. The notification unit 24 may be provided by, for example, the communication unit 23.

The control unit 25 controls the lighting of the light source 20 by the power supply circuit 22, the charge / discharge control of the battery 21, the drive control of the communication unit 23, and the notification control by the notification unit 24. The control unit 25 is provided in, for example, the power supply circuit 22.

Then, FIGS. 2 (a) and 2 (b) show an example of the lighting device 13. FIG. 2A shows a base light, which includes a fixture body 26 and a light source 20 as a normal light source 20a and an emergency light source 20b. Further, FIG. 2B shows a ceiling light, which is provided with a fixture main body 27 and a glove 28 covering the light source 20 arranged on the fixture main body 27. The ceiling light light source 20 may also be provided with a normal light source 20a and an emergency light source 20b.

Further, when the wall switch 12 is turned on, the remote controller 14 turns on and off the lighting device 13, and further operates dimming and toning. The remote controller 14 wirelessly communicates with the communication unit 23 of the lighting device 13 using an optical signal such as infrared rays. The remote controller 14 may wirelessly communicate with the communication unit 23 of the lighting device 13 using a radio wave signal.

Further, the external device 15 is a power failure detection device that detects a power failure of the external power source 11. The external device 15 is connected to an outlet such as a room in which the lighting device 13 is installed, and by not passing through the wall switch 12, it is possible to detect a power failure of the external power supply 11 regardless of the switching state of the wall switch 12. ..

The external device 15 controls a communication unit 30, which is an external communication unit that communicates with the communication unit 23 of the lighting device 13, a battery 31 that stores electric power, a power supply circuit 32 that is an external power supply circuit, an external notification unit 33, and an external device 15. It is provided with a control unit 34, which is an external control unit.

The communication unit 30 is, for example, a wireless communication unit that wirelessly communicates with the communication unit 23 of the lighting device 13 using a radio signal.

As the battery 31, a rechargeable secondary battery such as a Ni-Cd battery, a nickel-metal hydride battery, or a lithium-ion battery is used.

The power supply circuit 32 converts the power of the external power supply 11 into a predetermined power when the external power supply 11 is supplied and supplies the power to each configuration of the external device 15, and determines the power stored in the battery 31 when the external power supply 11 fails. It can be converted into electric power and supplied to each configuration of the external device 15.

The external notification unit 33 is, for example, a monitor lamp, and is provided in a place that can be seen from the outside of the external device 15.

The control unit 34 controls the charging / discharging of the battery 31 and the drive control of the communication unit 30. The control unit 34 charges the battery 31 with the electric power of the external power source 11 and drives the communication unit 30 when the external power source 11 is supplied, and drives the communication unit 30 with the electric power of the battery 31 when the external power source 11 has a power failure.

Then, the lighting device 13 and the external device 15 communicate with each other at a fixed cycle, confirm the state with each other, and synchronize with each other.

Next, the operation of the lighting system 10 will be described. Note that FIG. 3 shows a table of operating conditions of the lighting device 13.

When the wall switch 12 is switched from the off state to the on state in the normal state when the external power source 11 is supplied, the power of the external power source 11 is supplied to the lighting device 13.

The control unit 25 of the lighting device 13 controls the power supply circuit 22 by the electric power of the supplied external power source 11, lights the light source 20, charges the battery 21, and further drives the communication unit 23. In this case, the communication unit 23 is constantly driven, receives a signal transmitted from the remote controller 14, and communicates with the external device 15 with each other. The communication unit 23 communicates with the external device 15 at regular intervals.

The external device 15 transmits an external power supply signal, which is information indicating that the external power supply 11 is being supplied, and the control unit 25 of the lighting device 13 that receives the external power supply signal operates in the normal mode, and the light source 20 operates. Lighting control and charge / discharge control of the battery 21 are performed.

When the lighting device 13 receives the extinguishing signal from the remote controller 14, the control unit 25 controls the power supply circuit 22 to extinguish the light source 20, but the charging of the battery 21 and the driving of the communication unit 23 continue.

When the wall switch 12 is switched from the on state to the off state, the power supply of the external power source 11 to the lighting device 13 is cut off, the light source 20 is turned off, and the charging of the battery 21 is stopped.

When the power supply of the external power source 11 to the lighting device 13 is cut off, the power supply is switched from the battery 21, and the control unit 25 operates by the power of the battery 21.

The control unit 25 drives the communication unit 23 at a predetermined cycle by the electric power of the battery 21. The communication unit 23 does not communicate with the remote controller 14, and the function of receiving or transmitting an optical signal with the remote controller 14 is stopped.

By the control unit 25, the communication unit 23 repeats a stopped state and a driving state (standby state) at a predetermined cycle. When the communication unit 23 is driven, it communicates with the external device 15. By driving the communication unit 23 at a predetermined cycle in this way, it is possible to reduce the power consumption of the battery 21 as compared with the case where the communication unit 23 is always in the driving state (standby state).

The cycle in which the communication unit 23 is in the drive state (standby state) is shorter than the cycle in which the external device 15 transmits a signal. Further, the time of the driving state (standby state) of the communication unit 23 is longer than the time of the external device 15 transmitting the signal. Due to these relationships, the lighting device 13 can prevent leakage of signals from the external device 15 even if the communication unit 23 is driven at a predetermined cycle.

The lighting device 13 communicates with the external device 15 at regular intervals, confirms the state of each other, and synchronizes with each other. The synchronization includes information such as the supply status of the external power supply 11 and the power failure status. Then, by mutually confirming the state of the lighting device 13 and the external device 15, the lighting device 13 can operate correctly in an emergency.

The timing for mutually confirming the status between the lighting device 13 and the external device 15 includes when the power of the external power supply 11 is turned on to the lighting device 13 and when the power of the external power supply 11 to the lighting device 13 is cut off. Is done. By mutually confirming the state at the timing of supplying and shutting off the external power supply 11 to the lighting device 13 in this way, the mutual state between the lighting device 13 and the external device 15 can be quickly changed according to the change in the state of the lighting device 13. It can be confirmed that the lighting device 13 can operate correctly in an emergency.

When the communication unit 23 does not communicate with the external device 15 for a predetermined period, the control unit 25 notifies the notification unit 24. If the notification unit 24 is, for example, a monitor lamp, it lights up to notify the notification. In this case, for example, in the case of a temporary communication failure, the communication state can be restored by turning on / off the wall switch 12 or connecting / disconnecting the external device 15 to the outlet.

Then, the control unit 25 operates in the standby mode by the power of the battery 21 when the power of the external power supply 11 is cut off but the external power supply signal is input from the external device 15, and the above-mentioned communication unit 25 operates in the standby mode. Performs 23 drive controls.

Further, the control unit 25 drives the communication unit 23 using a predetermined capacity of the total capacity of the battery 21 in the standby mode when the external power supply 11 is shut off by turning off the wall switch 12. The predetermined capacity used for driving the communication unit 23 corresponds to the total capacity of the electric power stored in the battery 21 minus the capacity required to light the light source 20 for a predetermined time in an emergency. The capacity of the battery 21 may be detected, for example, from the charging time or the integration of the charging current.

FIG. 4 shows a schematic diagram of the capacity of the battery 21. For example, assuming that the total capacity of the electric power stored in the battery 21 is 100%, and the capacity required to light the light source 20 for a predetermined time in an emergency is 50%, the capacity in the range exceeding 50% is in the standby mode. It is assigned to drive the communication unit 23 of. The capacity required to light the light source 20 for a predetermined time in an emergency is set to 50%, but it may be more than or less than 50% depending on the total capacity of the battery 21 and the lighting time of the light source 20 in an emergency. It may be set.

For example, when the wall switch 12 is off for a long time due to a holiday or absence, or when the charge amount of the battery 21 is insufficient, the battery 21 is stored by the power consumption driven by the communication unit 23. When the amount of power decreases and the remaining capacity becomes a predetermined capacity close to the capacity required to light the light source 20 for a predetermined time in an emergency, the notification unit 24 may notify that the battery is insufficiently charged. With this notification, it is possible to confirm that the battery 21 is insufficiently charged. In this case, the wall switch 12 is turned on, and the battery 21 is charged to a predetermined remaining capacity or more by the electric power of the external power source 11, so that the notification by the notification unit 24 is stopped.

For example, during consecutive holidays or a relatively long trip, the wall switch 12 is off for a longer period of time, and the amount of power stored in the battery 21 is the capacity required to light the light source 20 for a predetermined time in an emergency (for example, 50%). ) Is reached or decreased, the drive of the communication unit 23 may be stopped, and the operation of the control unit 25 may also be stopped.

In this case, since the external device 15 loses communication with the lighting device 13, it is determined that the lighting device 13 is abnormal, and the external device 33 is provided with an external notification unit 33 such as a monitor lamp. good. From this notification, poor communication with the lighting device 13 can be confirmed, and it can be inferred that the cause is insufficient charging of the battery 21 of the lighting device 13. In this case, by turning on the wall switch 12 and driving the communication unit 23 with the power of the external power supply 11, the communication with the external device 15 is restored, and the notification by the external notification unit 33 of the external device 15 is stopped. ..

Then, in the standby mode of the control unit 25, when the amount of electric power stored in the battery 21 reaches or decreases the capacity (for example, 50%) required to light the light source 20 for a predetermined time in an emergency, the communication unit 23 By stopping the drive and also stopping the operation of the control unit 25, the amount of power required in an emergency is secured in the battery 21, and even if there is a power failure immediately when the wall switch 12 is turned on after that, the light source 20 can be turned on for a predetermined time.

The power consumption of the battery 21 in the standby mode of the control unit 25 may be measured by detecting the amount of current discharged from the battery 21, or the drive time of the communication unit 23 may be converted. You may measure with.

Further, when the wall switch 12 is turned on at the time of power failure of the external power supply 11, the lighting device 13 is switched to the power supply from the battery 21, and the control unit 25 operates in the standby mode by the power of the battery 21. , The communication unit 23 is driven at a predetermined cycle to communicate with the external device 15 and confirm the mutual state. When the wall switch 12 is off, there is no change at the timing when the external power supply 11 fails, the control unit 25 operates in the standby mode by the power of the battery 21, and the communication unit 23 is driven in a predetermined cycle. Then, it communicates with the external device 15 and confirms the mutual status.

In the external device 15, when the external power supply 11 has a power failure, the power supply is switched from the battery 31, and the control unit 34 operates by the power of the battery 31 to communicate a power failure signal which is information indicating the power failure of the external power source 11. Send from part 30.

When the lighting device 13 receives the power failure signal from the external device 15, the control unit 25 shifts to the emergency mode and turns on the light source 20 with the power supply of the battery 21. The control unit 25 drives the communication unit 23 at a predetermined cycle to communicate with the external device 15 even in the emergency mode, and confirms the mutual status.

When the external power supply 11 is restored and the power supply is resumed, the external device 15 operates by the power of the external power supply 11 and transmits an external power supply signal indicating information that the external power supply 11 is being supplied.

If the wall switch 12 is in the ON state when the external power supply 11 is restored and the power supply is resumed, the lighting device 13 turns off the light source 20 when receiving the external power supply signal from the external device 15. , The mode shifts to the above-mentioned normal mode.

If the wall switch 12 is in the off state when the external power supply 11 is restored and the power supply is resumed, the lighting device 13 turns off the light source 20 when receiving the external power supply signal from the external device 15. , The mode shifts to the standby mode described above.

Also, when removing the external device 15 from the outlet to clean the external device 15 or its vicinity, or removing the external device 15 from the outlet to move it to another outlet, it was simply removed, so it was disconnected from the external power supply 11. Since the external device 15 transmits the power failure signal, the lighting device 13 that has received the power failure signal shifts to the emergency mode in which the light source 20 is turned on by the power of the battery 21. Therefore, when the external device 15 is removed from the outlet, the power failure signal may not be transmitted by removing the external device 15 while pressing the button of the switch provided on the external device 15, for example. For example, if the button protrudes in the same direction as the outlet plug of the external device 15 and the external device 15 is removed from the outlet with the button protruding, the structure may not transmit the power failure signal. In the case of this structure, for example, the button is shorter than the outlet plug, and when the external device 15 is attached to the outlet, the button is also pressed. On the other hand, when the user removes the external device 15, since the button is shorter than the outlet plug, the button is in a protruding state before the outlet plug is completely removed from the outlet. Therefore, when the user removes the external device 15, the stop signal is not transmitted. On the other hand, if a power failure occurs while the button is pressed, a power failure signal is transmitted.

According to the lighting device 13 configured in this way, the communication unit 23 is driven by using the electric power of a predetermined capacity out of the total capacity of the battery 21, that is, the electric power of the battery 21 used to drive the communication unit 23. By limiting the above, the capacity of the battery 21 required for lighting the light source 20 can be secured.

The predetermined capacity used for driving the communication unit 23 is the total capacity of the electric power stored in the battery 21 minus the capacity required to light the light source 20 for a predetermined time in an emergency. 20 can be turned on for a predetermined time.

Further, the communication unit 23 of the lighting device 13 can reduce the power consumption of the battery 21 by communicating with the external device 15 at a predetermined cycle, and can continue the operation for a long time even when the external power supply 11 is cut off. ..

The lighting device 13 notifies the external device 15 by the notification unit 24 when there is no communication with the external device 15 for a predetermined period, so that even if a communication failure occurs due to communication with the external device 15 in a predetermined cycle, the notification unit 24 It can be confirmed by notification, and appropriate measures can be taken.

Further, the lighting device 13 shuts off the external power supply 11 by, for example, a wall switch 12 by turning on the light source 20 with the power of the battery 21 only when the power failure signal is received from the external device 15 when the external power supply 11 is shut off. The light source 20 does not turn on by itself, and unnecessary consumption of the electric power of the battery 21 can be prevented.

Further, the external device 15 includes an external notification unit 33, and when there is no communication with the lighting device 13 for a predetermined period of time, the external device 15 notifies the external device 33, so that, for example, the battery 21 of the lighting device 13 is insufficiently charged. It is possible to confirm that a communication failure has occurred and take appropriate measures.

The external device 15 may be a fire alarm, and the lighting device 13 may be switched to the emergency mode by transmitting a fire signal to the lighting device 13 when a fire is detected.

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 novel embodiments can be implemented in various other embodiments, 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, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

10 Lighting system
11 External power supply
13 Lighting equipment
15 External device
20 light source
21 Battery
23 Communication Department
24 Notification unit
25 Control unit
33 External notification unit

Claims (4)

With a light source;
With a battery that stores electricity;
With a communication unit that communicates with an external device;
When the external power supply is supplied, the light source is turned on by the power of the external power source and the communication unit is driven, and when the external power supply is cut off, the communication unit is powered by a predetermined capacity of the total capacity of the battery. With the driving control unit;
A lighting device characterized by being provided with. Equipped with a notification unit
The communication unit communicates with the external device at a predetermined cycle, and communicates with the external device at a predetermined cycle.
The lighting device according to claim 1, wherein the control unit notifies the communication unit with the external device when the communication unit does not communicate with the external device for a predetermined period of time. With the lighting device according to claim 1 or 2.
With an external device that detects a power failure of the external power supply and communicates with the lighting device;
A lighting system characterized by being equipped with. The lighting system according to claim 3, wherein the external device includes an external notification unit, and the external notification unit notifies the external device when there is no communication with the lighting device for a predetermined period of time.

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