JP7445889B2 - Lighting devices, luminaires, and lighting systems - Google Patents

Description

The present disclosure relates to lighting devices, lighting fixtures, and lighting systems.

The conventional lighting system described in Patent Document 1 includes a lighting device and a remote control device for remotely controlling the lighting device. The remote control device includes a power outage detection section that detects a power outage of the commercial power supply via an outlet, and a transmission section that transmits a switching signal when a power outage is detected. The lighting device includes a receiving section that receives a switching signal from a remote control device using power from a storage battery, and a lighting control section that controls lighting of a light emitting section. When power is supplied from the commercial power source, the lighting control section lights the light emitting section using the power from the commercial power source. Furthermore, when power is not supplied from the commercial power supply and the switching signal is received by the receiving section, the lighting control section lights up the light emitting section based on the power from the storage battery.

Japanese Patent Application Publication No. 2016-219151

A lighting device (lighting device) used in a lighting system such as that disclosed in Patent Document 1 described above includes a communication unit (receiving unit) that communicates with an external device (remote control device). When the external power source (commercial power source) is out of power, the lighting device lights up the light source (light emitting unit) using a battery (storage battery).

However, during a power outage, the battery must supply not only the lighting power for the light source but also the operating power for the communication section, and the operating power for the communication section shortens the lighting time of the light source during the power outage. Therefore, in order to extend the lighting time of the light source during a power outage, it is necessary to increase the capacity of the battery, but increasing the capacity of the battery results in an increase in the size of the battery.

An object of the present disclosure is to provide a lighting device, a lighting fixture, and a lighting system that are equipped with a communication unit that communicates with external devices, and that can ensure the lighting time of a light source during a power outage and suppress the increase in battery size. There is a particular thing.

A lighting device according to one aspect of the present disclosure includes a lighting circuit, a communication section, and a control circuit. The lighting circuit lights the light source using emergency power supplied from a battery during a power outage of an external power source. The communication unit communicates with an external device. The control circuit switches the operation mode of the communication unit to either a normal mode or a power saving mode in which power consumption of the communication unit is lower than in the normal mode. When the external power supply is energized, the control circuit and the communication section operate with normal power supplied from the external power supply, and the control circuit sets the operation mode to the normal mode. During a power outage of the external power source, the control circuit operates using the emergency power and sets the operation mode to the power saving mode. During a power outage of the external power source, the communication section operates using the emergency power. If the operation mode is the power saving mode, the communication unit does not spontaneously transmit a signal to the external device, but receives a signal transmitted from the external device.
A lighting device according to one aspect of the present disclosure includes a lighting circuit, a communication section, and a control circuit. The lighting circuit lights the light source using emergency power supplied from a battery during a power outage of an external power source. The communication unit communicates with an external device. The control circuit switches the operation mode of the communication unit to either a normal mode or a power saving mode in which power consumption of the communication unit is lower than in the normal mode. When the external power source is energized, the control circuit and the communication section operate with normal power supplied from the external power source, and the control circuit sets the operation mode to the normal mode. During a power outage of the external power source, the control circuit operates using the emergency power and sets the operation mode to the power saving mode. When the external power supply experiences a power outage, the communication unit transmits a power outage notification to the external device. The control circuit switches the operation mode from the normal mode to the power saving mode. The power outage notification is a signal for notifying the external device that communication between the communication unit and the external device becomes impossible.

A lighting fixture according to one aspect of the present disclosure includes the above-described lighting device, the light source, and a main body to which at least one of the lighting device and the light source is attached.

A lighting system according to one aspect of the present disclosure includes the above-described lighting device and the external device.

As described above, the present disclosure has the effect of ensuring the lighting time of the light source during a power outage and suppressing the increase in the size of the battery, while providing a communication unit that communicates with an external device.

FIG. 1 is a block diagram showing the configuration of a lighting device in a lighting system according to an embodiment. FIG. 2 is a block diagram showing the configuration of a management device in the above lighting system. FIG. 3 is a flowchart showing the operation of the above lighting device. FIG. 4 is a block diagram showing a lighting device according to a second modification example of the above. FIG. 5A, FIG. 5B, and FIG. 5C are plan views showing a lighting fixture including the above lighting device.

TECHNICAL FIELD The following embodiments generally relate to lighting devices, lighting fixtures, and lighting systems. More specifically, the following embodiments relate to a lighting device, a lighting fixture, and a lighting system that turn on a light source using a battery during a power outage of an external power source.

Note that the configuration described in the embodiments below is only an example of the present disclosure. The present disclosure is not limited to the following embodiments, and various changes can be made depending on the design etc. as long as the effects of the present disclosure can be achieved.

Embodiment (1) Overview of lighting system FIG. 1 shows a block configuration of a lighting system X1 of this embodiment. The lighting system X1 includes a lighting fixture 1 and a management device 5. The lighting fixture 1 is installed in a facility such as a commercial facility, a store, a factory, a warehouse, or an office, or a residential unit such as a detached house or an apartment complex.

The lighting fixture 1 is a disaster prevention lighting fixture, and is an embedded emergency light that is embedded in an embedded hole provided in the indoor ceiling of a building. However, the lighting fixture 1 is not limited to an embedded emergency light. The lighting fixture 1 may be an exposed emergency light that is directly attached to the ceiling, or may be a disaster prevention lighting fixture other than an emergency light such as a guide light.

The lighting fixture 1 includes a light source 2, a battery 3, and a lighting device 4. The management device 5 corresponds to an external device of the present disclosure. The lighting device 4 and the management device 5 perform wireless communication with each other. The management device 5 transmits various commands such as a monitoring request to the lighting device 4. The lighting device 4 transmits various data such as the operation of each part and the presence or absence of an abnormality to the management device 5.

The lighting fixture 1 and the management device 5 are electrically connected to an external power source 9, and are supplied with power from the external power source 9 when the external power source 9 is energized. The external power supply 9 is, for example, a 100V or 200V commercial power system.

The lighting device 4 includes a lighting circuit 42, a communication section 45, and a control circuit 46. The lighting circuit 42 lights the light source 2 using the battery 3 as an emergency power source when the external power source 9 is out of power. The communication unit 45 communicates with the management device 5. The control circuit 46 switches the operation mode of the communication unit 45 to either normal mode or power saving mode. The power saving mode is an operation mode in which the power consumption of the communication unit 45 is lower than that in the normal mode. When the external power source 9 is energized, the control circuit 46 and the communication unit 45 operate with normal power supplied from the external power source 9, and the control circuit 46 sets the operation mode to the normal mode. When the external power supply 9 is out of power, the control circuit 46 operates using the emergency power stored in the battery 3 and sets the operation mode to the power saving mode.

Therefore, while the lighting device 4 includes the communication unit 45 that communicates with the management device 5, it is possible to ensure the lighting time of the light source 2 during a power outage and to suppress the increase in the size of the battery 3.

(2) Lighting Fixture The lighting fixture 1 includes a light source 2, a battery 3, and a lighting device 4, as shown in FIG.

The light source 2 includes a plurality of solid-state light emitting elements. In this embodiment, each of the plurality of solid-state light emitting elements is an LED (Light Emitting Diode) that emits visible light, and the plurality of LEDs are connected in series. Note that each of the plurality of solid-state light emitting elements included in the light source 2 is not limited to an LED, and may be an organic EL (Organic Electro Luminescence, OEL), a semiconductor laser diode (Laser Diode, LD), or the like. Furthermore, the number of solid-state light-emitting elements is not limited to a plurality, and may be one. Although the plurality of solid-state light emitting elements are electrically connected in series, the connection relationship is not limited to this. The electrical connection relationship between the plurality of solid-state light emitting elements may be a parallel connection or a combination of series connection and parallel connection.

The battery 3 is a rechargeable storage battery (secondary battery) and corresponds to an emergency power source for the lighting fixture 1. Although the battery 3 is not limited to a particular type of secondary battery, it is preferable that the battery 3 is, for example, a nickel-hydrogen battery or a nickel-cadmium battery. The battery 3 is charged by the voltage conversion circuit 41 when the external power supply 9 is energized (when there is no power outage). When the external power supply 9 is out of power, the battery 3 discharges the stored charge and supplies emergency power.

The lighting device 4 includes a voltage conversion circuit 41 , a lighting circuit 42 , a power failure detection circuit 43 , a control power supply circuit 44 , a communication section 45 , and a control circuit 46 .

The voltage conversion circuit 41 is composed of, for example, a switching power supply circuit such as a flyback converter. The voltage conversion circuit 41 operates when the external power supply (for example, a commercial power system) 9 is energized, and converts the AC voltage supplied from the external power supply 9 to a DC voltage lower than the effective value of the AC voltage. do. The voltage conversion circuit 41 supplies charging current to the battery 3 using the DC voltage, and outputs the DC voltage to the control power supply circuit 44 . That is, the voltage conversion circuit 41 charges the battery 3 with normal power supplied from the external power supply 9 when the external power supply 9 is energized, and serves as an input power source for the control power supply circuit 44 .

The lighting circuit 42 supplies a constant DC current to the light source 2 using emergency power supplied from the battery 3 when the external power supply 9 is out of power.

The power outage detection circuit 43 detects a power outage in the external power supply 9 from the input voltage or output voltage of the voltage conversion circuit 41 and notifies the control circuit 46 of the detected power outage.

The control power supply circuit 44 is composed of, for example, a power supply IC (Integrated Circuit), and converts the DC voltage output from the voltage conversion circuit 41 into a control voltage when the external power supply 9 is energized, and converts the DC voltage of the battery 3 when the external power supply 9 is out of power. Converts voltage (battery voltage) to control voltage. That is, when the external power supply 9 is energized, the control power supply circuit 44 generates a control voltage using the normal power supplied from the external power supply 9. Further, when the external power supply 9 is out of power, the control power supply circuit 44 generates a control voltage using the emergency power stored in the battery 3. The control voltage is supplied to the communication section 45 and the control circuit 46. The communication unit 45 and the control circuit 46 operate using control voltage.

The communication unit 45 performs wireless communication with the management device 5 using radio waves as a medium. It is preferable that the wireless communication conforms to a standard such as wireless LAN, Bluetooth (registered trademark), or ZigBee (registered trademark). The communication unit 45 operates by being supplied with operating power from the control power supply circuit 44 . That is, the communication unit 45 operates with normal power supplied from the external power supply 9 when the external power supply 9 is energized, and operates with emergency power supplied from the battery 3 when the external power supply 9 is out of power.

The control circuit 46 operates by being supplied with operating power from the control power supply circuit 44 and controls the lighting circuit 42 and the communication section 45 . The control circuit 46 stops the lighting circuit 42 and causes the voltage conversion circuit 41 to charge the battery 3 when the external power supply 9 is energized. The control circuit 46 operates the lighting circuit 42 during a power outage of the external power supply 9 and lights the light source 2 using the emergency power supplied from the battery 3. Furthermore, the control circuit 46 switches the operation mode of the communication unit 45 to normal mode or power saving mode. Details of switching the operation mode by the control circuit 46 will be described later.

Note that the above-mentioned control circuit 46 preferably includes a computer system. A computer system mainly consists of a processor and a memory as hardware. At least part of the function of the control circuit 46 in the present disclosure is realized by the processor executing a program recorded in the memory of the computer system. The program may be pre-recorded in the memory of the computer system, provided through a telecommunications line, or recorded on a non-transitory storage medium readable by the computer system, such as a memory card, optical disc, or hard disk drive. may be provided. A processor of a computer system is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large-scale integrated circuit (LSI). The integrated circuits such as IC or LSI referred to herein have different names depending on the degree of integration, and include integrated circuits called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). Furthermore, FPGAs (Field-Programmable Gate Arrays), which are programmed after the LSI is manufactured, or logic devices that can reconfigure the connections inside the LSI or reconfigure the circuit sections inside the LSI, can also be used as processors. can. The plurality of electronic circuits may be integrated into one chip, or may be provided in a distributed manner over a plurality of chips. A plurality of chips may be integrated into one device, or may be distributed and provided in a plurality of devices. A computer system herein includes a microcontroller having one or more processors and one or more memories. Therefore, the microcontroller is also composed of one or more electronic circuits including a semiconductor integrated circuit or a large-scale integrated circuit.

(3) Management device The management device 5 corresponds to the external device of the present disclosure, and is preferably an information terminal such as a personal computer, a tablet terminal, a smartphone, or a dedicated terminal. Further, the external device may be a server device. The management device 5 includes a communication unit 51, a calculation unit 52, a battery 53, and a voltage conversion circuit 54, as shown in FIG.

The communication unit 51 performs wireless communication with the communication section 45 of the lighting device 4 using radio waves as a medium. It is preferable that the wireless communication conforms to standards such as wireless LAN, Bluetooth, or ZigBee.

The calculation unit 52 transmits various commands to the lighting device 4 via the communication unit 51. Further, the calculation unit 52 receives various data from the lighting device 4 via the communication unit 51, and stores the various data received from the lighting device 4 in a memory or the like. That is, the calculation unit 52 can monitor and control the lighting fixture 1 or the lighting device 4.

The battery 53 is a rechargeable storage battery (secondary battery) and corresponds to an emergency power source for the management device 5. Although the battery 53 is not limited to a particular type of secondary battery, it is preferable that the battery 53 is, for example, a nickel-hydrogen battery or a nickel-cadmium battery. The battery 53 is charged by the voltage conversion circuit 54 when the external power supply 9 is energized. When the external power supply 9 is out of power, the battery 53 discharges the stored charge and supplies operating power to the communication unit 51, the arithmetic unit 52, and the like.

The voltage conversion circuit 54 operates when being supplied with power from the external power supply 9, converts the AC voltage supplied from the external power supply 9 into a DC voltage lower than the effective value of the AC voltage, and converts the battery using the DC voltage. A charging current is supplied to 53. That is, the voltage conversion circuit 54 charges the battery 53 when the external power supply 9 is energized.

Note that it is preferable that the above-mentioned calculation unit 52 includes a computer system. A computer system mainly consists of a processor and a memory as hardware. At least part of the functions of the arithmetic unit 52 in the present disclosure are realized by the processor executing a program recorded in the memory of the computer system. Further, the computer system may be a system composed of one or more computers. For example, at least some of the functions of the calculation unit 52 may be realized by cloud (cloud computing).

(4) Operation of the lighting system (4.1) Operation when the external power source is energized When the external power source 9 is energized, the power failure detection circuit 43 of the lighting device 4 does not detect a power failure of the external power source 9. Therefore, in the lighting device 4, the voltage conversion circuit 41 operates to charge the battery 3 with power from the external power source 9. Therefore, even if the control power supply circuit 44 converts the voltage of the battery 3 into a control voltage and outputs the control voltage to the communication section 45 and the control circuit 46, the battery 3 can maintain a fully charged state. Furthermore, since the power failure detection circuit 43 has not detected a power failure in the external power supply 9, the control circuit 46 stops the lighting circuit 42 and turns off the light source 2.

Furthermore, since the power failure detection circuit 43 has not detected a power failure of the external power supply 9, the control circuit 46 switches the operation mode of the communication unit 45 to the normal mode. The communication unit 45 in the normal mode can not only receive signals from the management device 5 but also spontaneously transmit signals to the management device 5, and the power consumption of the communication unit 45 in the normal mode is lower than that in the power saving mode. becomes larger than That is, the communication unit 45 in the normal mode can actively communicate with the management device 5.

When the external power supply 9 is energized, the management device 5 sends various commands such as a monitoring request to the lighting device 4 periodically or irregularly. For example, the management device 5 periodically transmits a monitoring request (command) to the lighting device 4. When the lighting device 4 receives the monitoring request from the management device 5, it transmits various data such as the operation of each part and the presence or absence of abnormality to the management device 5 as a reply to the monitoring request. Further, the communication unit 45 in the normal mode not only transmits various data as a reply to a command, but also can spontaneously transmit various data periodically or irregularly.

(4.2) Operation during a power outage of the external power source When the external power source 9 is out of power, the lighting device 4 operates according to the flowchart in FIG. 3.

When the operation mode is the normal mode, the control circuit 46 monitors whether the power failure detection circuit 43 has detected a power failure of the external power supply 9 (S1). When the power outage detection circuit 43 detects a power outage in the external power source 9, the control circuit 46 operates the lighting circuit 42 (S2) and lights up the light source 2 in an emergency using the emergency power from the battery 3 (S3). At this time, the voltage conversion circuit 41 stops operating and the battery 3 is not charged, so the battery 3 is discharged by each operation of the lighting circuit 42 and the control power supply circuit 44, and the remaining capacity of the battery 3 decreases over time. do.

The control circuit 46 then determines whether a monitoring request has been received from the management device 5 (S4). The control circuit 46 repeats the operation of step S4 until receiving a monitoring request from the management device 5. When the control circuit 46 receives the monitoring request from the management device 5, it transmits a power outage notification to the management device 5 as a reply to the monitoring request (S5). The power outage notification is a signal (communication impossible notification) for notifying the management device 5 that subsequent communication with the management device 5 will be impossible.

After transmitting the power outage notification, the control circuit 46 switches the operation mode of the communication unit 45 from the normal mode to the power saving mode (S6). The communication unit 45 in the power saving mode enters a hibernation state in which communication with the management device 5 is stopped, and the power consumption of the communication unit 45 in the power saving mode becomes smaller than in the normal mode. That is, the communication unit 45 in the power saving mode is unable to communicate with the management device 5.

When the operation mode is the power saving mode, the control circuit 46 monitors whether the power outage detection circuit 43 detects power restoration of the external power supply 9 (S7). When the power failure detection circuit 43 detects power restoration of the external power supply 9, the control circuit 46 switches the operation mode of the communication unit 45 from the power saving mode to the normal mode (S8).

Then, the control circuit 46 determines whether a monitoring request has been received from the management device 5 (S9). The control circuit 46 repeats the operation of step S9 until receiving the monitoring request from the management device 5. When the control circuit 46 receives the monitoring request from the management device 5, it transmits a power restoration notification to the management device 5 as a reply to the monitoring request (S10). The power restoration notification is a signal (communication restoration notification) for notifying the management device 5 that subsequent communication with the management device 5 is possible.

It is preferable that the power restoration notification includes at least one of information on the duration of the power outage and the details of the abnormality at the time of the power outage.

If the control circuit 46 has a built-in timer function, the control circuit 46 calculates the time from when the power failure detection circuit 43 detects the power failure of the external power source 9 to when the power is restored to the external power source 9 as the duration of the power failure. be able to.

Further, the control circuit 46 may inspect the battery 3 during a power outage. In this case, the control circuit 46 can determine the degree of deterioration of the battery 3 based on the above-mentioned inspection time and the remaining capacity of the battery 3 when the external power supply 9 is restored. The control circuit 46 determines whether there is an abnormality in the battery 3 by comparing the degree of deterioration of the battery 3 with a predetermined standard, and includes the presence or absence of an abnormality in the battery 3 in the power restoration notification. Furthermore, it is preferable that the control circuit 46 include the necessity of replacing the battery 3 in the power restoration notification.

Further, the control circuit 46 may inspect the light source 2 during a power outage. In this case, the control circuit 46 monitors the load current that the lighting circuit 42 supplies to the light source 2 during a power outage, determines whether there is an abnormality such as a short circuit or disconnection in the light source 2, and recovers the presence or absence of an abnormality in the light source 2. Include in electronic notification. Furthermore, it is preferable that the control circuit 46 include the necessity of replacing the light source 2 in the power restoration notification.

As described above, when the external power supply 9 is out of power, the operation mode becomes the power saving mode, and the communication unit 45 of the lighting device 4 stops communicating with the management device 5. Therefore, when the external power supply 9 is out of power, the power consumption of the communication unit 45 is reduced compared to when the external power supply 9 is energized. In other words, in the event of a power outage of the external power source 9, it is possible to increase the amount of power used to turn on the light source 2 out of the amount of power stored in the battery 3, without increasing the capacity of the battery 3. The lighting time of the light source 2 used can be made longer. As a result, while the lighting device 4 includes the communication unit 45 that communicates with the management device 5, it is possible to ensure the lighting time of the light source 2 during a power outage and to suppress the increase in the size of the battery 3.

Moreover, since the management device 5 can grasp the operating mode of the communication unit 45 of the lighting device 4 based on the power failure notification and the power recovery notification, it can monitor and control the lighting device 4 flexibly according to the operating mode.

(5) First Modification Hereinafter, a first modification of the power saving mode will be described.

When the operation mode is the power saving mode, the communication unit 45 stops the function of spontaneously transmitting a signal to the management device 5 among the communication functions with the management device 5, and receives the signal from the management device 5. It may also be in a sleep state in which it can send a reply to the management device 5 only when it does so. For example, during a power outage, the communication unit 45 may receive a command from the management device 5, and the control circuit 46 may control turning on or off of the light source 2 according to the command.

The power outage notification of this modification is a signal for notifying the management device 5 that the communication unit 45 will go into a sleep state and the spontaneous transmission function of the communication unit 45 will stop. Further, the power restoration notification is a signal for notifying the management device 5 that the function of the communication unit 45 to perform spontaneous transmission is restored.

Also in this modification, the lighting device 4 includes the communication unit 45 that communicates with the management device 5, and can ensure the lighting time of the light source 2 during a power outage and suppress the increase in the size of the battery 3. Furthermore, in this modification, the communication unit 45 is able to send a reply to the management device 5 even when the operation mode is the power saving mode, and can perform the minimum amount of communication.

(6) Second Modification Hereinafter, a second modification of the power saving mode will be described.

FIG. 4 shows a lighting device 4A of this modification. The lighting device 4A further includes a cutoff section 47 that conducts or cuts off the power supply path W1 that supplies operating power to the communication section 45. The power supply path W1 is formed between the control power supply circuit 44 and the communication section 45, and is a power supply path for supplying the control voltage outputted by the control power supply circuit 44 to the communication section 45.

The cutoff unit 47 includes a switch connected in series to the power supply path W1, and turns on the switch to make the power supply path W1 conductive, and turns off the switch to cut off the power supply path W1. Note that the switch is composed of a bipolar transistor, a semiconductor switch such as an FET (Field Effect Transistor), a mechanical relay, or the like.

The control circuit 46 sets the operation mode of the communication unit 45 to the normal mode by making the power supply path W1 conductive by the cutoff unit 47, and sets the operation mode to the power saving mode by cutting off the power supply route W1 by the cutoff unit 47. . That is, the communication unit 45 in the normal mode is operated by the control voltage output by the control power supply circuit 44, and can communicate with the management device 5. The communication unit 45 in the power saving mode cannot receive the control voltage from the control power supply circuit 44, stops operating, and becomes unable to communicate with the management device 5.

In this modification, when the external power supply 9 is out of power, the operation mode becomes the power saving mode and the power supply to the communication unit 45 is cut off. Therefore, when the external power supply 9 is out of power, the power consumption of the communication unit 45 becomes zero. As a result, while the lighting device 4 includes the communication unit 45 that communicates with the management device 5, it is possible to lengthen the lighting time of the light source 2 during a power outage and further suppress the increase in the size of the battery 3.

(7) Structure of lighting fixture Hereinafter, the structure of the lighting fixture 1 including the lighting device 4 will be described with reference to FIGS. 5A to 5C. The lighting fixture 1 according to the present embodiment is a disaster prevention lighting fixture, and is attached to construction materials such as ceiling materials and wall materials, for example, and irradiates illumination light onto evacuation passages and the like in the event of a power outage.

The lighting fixture 1 includes a main body 10, a cover 11, and a pair of supports 12, as shown in FIGS. 5A to 5C.

As shown in FIGS. 5A and 5B, the main body 10 is formed into a cylindrical shape with one bottom (lower surface) open. A pair of supports 12 are attached to the side surfaces of the main body 10. An annular flange 100 that projects outward is formed at the lower end of the main body 10 .

The pair of supports 12, as shown in FIGS. 5A to 5C, are shaped like long leaf springs. Each support 12 is fixed to the side surface of the main body 10 at one end in the longitudinal direction, and is configured such that the other end in the longitudinal direction can be bent in a direction (upward) approaching the bottom surface (top surface) of the main body 10. . That is, the main body 10 is installed on the ceiling by sandwiching the ceiling material between a pair of supports 12 inserted into a hole provided in the ceiling and a flange 100 provided on the lower end surface of the main body 10. Supported by wood.

As shown in FIGS. 5A to 5C, the cover 11 is formed into a disk shape that is larger than the outer diameter of the flange 100 of the main body 10. As shown in FIG. 5B, a circular window hole 110 is provided in the center of the cover 11. The lens 21 of the light source unit 2U passes through the window hole 110. A pair of attachment springs are attached to the cover 11. As shown in FIG. 5C, the cover 11 is held on the main body 10 by a pair of attachment springs in a state that it closes the bottom surface of the main body 10.

A lighting device 4 (see FIG. 1), a light source 2 (see FIG. 1), and a battery 3 (see FIG. 1) are attached to the main body 10. More specifically, as shown in FIG. 5B, the light source unit 2U, battery unit 3U, and lighting unit 4U are housed in the main body 10. However, the battery unit 3U is housed in the main body 10 so that it can be inserted and removed through the opening on the bottom surface of the main body 10.

The light source unit 2U includes an LED module 20 and a lens 21, as shown in FIG. 5B. The LED module 20 has a substrate on which the light source 2 is mounted, and when a voltage is applied in the forward direction, it emits white illumination light such as white, neutral white, or daylight color. The lens 21 is arranged in front of (below) the LED module 20 and collects light emitted from the LED module 20.

The battery unit 3U shown in FIG. 5B includes a battery 3 (see FIG. 1) including a plurality of unit cells and a battery case that houses the battery 3. The battery 3 is, for example, a nickel-hydrogen storage battery or a nickel-cadmium storage battery. The battery case is formed into a box shape made of an electrically insulating material such as synthetic resin, and accommodates a plurality of unit cells therein.

The lighting unit 4U shown in FIG. 5B includes the lighting device 4 (see FIG. 1).

Note that at least one of the lighting device 4 and the light source 2 may be attached to the main body 10.

Further, the lighting fixture 1A (see FIG. 4) including the lighting device 4A is also configured in the same manner as the lighting fixture 1 of FIGS. 5A to 5C.

(8) Other Modifications The lighting fixtures 1 and 1A are not limited to disaster prevention lighting fixtures. The lighting equipment 1, 1A may be any lighting equipment as long as it is supplied with emergency power from the battery 3 and lights up the light source 2. The lighting fixtures 1 and 1A may be lighting fixtures that emit illumination light to adjust the illuminance of a space, for example.

(9) Summary As described above, the lighting device (4, 4A) of the first aspect according to the embodiment includes a lighting circuit (42), a communication section (45), and a control circuit (46). . The lighting circuit (42) lights the light source (2) using emergency power supplied from the battery (3) during a power outage of the external power source (9). The communication unit (45) communicates with the external device (5). The control circuit (46) switches the operation mode of the communication unit (45) to either a normal mode or a power saving mode in which the power consumption of the communication unit (45) is lower than the normal mode. When the external power source (9) is energized, the control circuit (46) and the communication section (45) operate with normal power supplied from the external power source (9), and the control circuit (46) changes the operation mode to the normal mode. shall be. When the external power supply (9) is out of power, the control circuit (46) operates using emergency power and sets the operation mode to the power saving mode.

The above-mentioned lighting device (4, 4A) is equipped with a communication section (45) that communicates with an external device (5), and also ensures the lighting time of the light source (2) during a power outage and increases the size of the battery (3). can be suppressed.

Furthermore, in the lighting device (4, 4A) of the second aspect according to the embodiment, when the external power supply (9) has a power outage in the first aspect, the communication unit (45) notifies the external device (5) of the power outage. It is preferable that the control circuit (46) switches the operation mode from the normal mode to the power saving mode.

According to the lighting device (4, 4A) described above, the external device (5) can flexibly monitor and control the lighting device (4, 4A) according to the operation mode.

Further, in the lighting device (4, 4A) of the third aspect according to the embodiment, in the second aspect, the power outage notification is made when communication between the communication unit (45) and the external device (5) is disabled. It is preferable that the signal is for notifying the external device (5) of the change.

According to the above-described lighting device (4, 4A), the external device (5) can flexibly monitor and control the lighting device (4, 4A) depending on whether or not the communication unit (45) can communicate.

Further, in the lighting device (4, 4A) of the fourth aspect according to the embodiment, in the second or third aspect, the control circuit (46) operates after the communication unit (45) transmits the power outage notification. It is preferable to switch the mode from normal mode to power saving mode.

The above-mentioned lighting device (4, 4A) can efficiently notify the power outage and switch the operation mode.

Further, in the lighting device (4) of the fifth aspect according to the embodiment, in any one of the first to fourth aspects, when the external power supply (9) is out of power, the communication unit (45) It is preferable to operate by. The communication unit (45) stops communication with the external device (5) if the operation mode is the power saving mode.

The lighting device (4) described above can reduce the power consumption of the communication section (45) when the external power source (9) is out of power compared to when the external power source (9) is energized. That is, at the time of a power outage of the external power source (9), the amount of power used for lighting the light source (2) out of the amount of power stored in the battery (3) can be increased.

Further, in the lighting device (4) of the sixth aspect according to the embodiment, in any one of the first to fourth aspects, when the external power supply (9) is out of power, the communication unit (45) It is preferable to operate by. If the operation mode is the power saving mode, the communication unit (45) does not spontaneously transmit a signal to the external device (5), but receives the signal transmitted from the external device (5).

The lighting device (4) described above can reduce the power consumption of the communication section (45) when the external power source (9) is out of power compared to when the external power source (9) is energized. That is, at the time of a power outage of the external power source (9), the amount of power used for lighting the light source (2) out of the amount of power stored in the battery (3) can be increased. Furthermore, when the operation mode is the power saving mode, the communication unit (45) can perform minimal communication.

Further, in any one of the first to fourth aspects, the lighting device (4A) of the seventh aspect according to the embodiment conducts the power feeding path (W1) that supplies operating power to the communication unit (45). Alternatively, it is preferable to further include a blocking part (47) for blocking. The control circuit (46) makes the power supply path (W1) conductive when the operation mode is set to the normal mode, and conducts the power supply path (W1) using the cutoff section (47) when the operation mode is set to the power saving mode. Block the route (W1).

The lighting device (4A) described above can reduce the power consumption of the communication section (45) when the external power source (9) is out of power compared to when the external power source (9) is energized. That is, at the time of a power outage of the external power source (9), the amount of power used for lighting the light source (2) out of the amount of power stored in the battery (3) can be increased.

Further, in the lighting device (4, 4A) of the eighth aspect according to the embodiment, in any one of the first to seventh aspects, when the external power supply (9) is restored, the communication unit (45) It is preferable that the control circuit (46) transmits a power restoration notification to the external device (5), and switches the operation mode from the power saving mode to the normal mode.

According to the lighting device (4, 4A) described above, the external device (5) can flexibly monitor and control the lighting device (4, 4A) according to the operation mode.

Further, in the lighting device (4, 4A) of the ninth aspect according to the embodiment, in the eighth aspect, the power restoration notification includes information on at least one of the duration of the power outage and the details of the abnormality at the time of the power outage. It is preferable.

According to the lighting device (4, 4A) described above, the external device (5) can monitor and control the lighting device (4, 4A) that is the management target more precisely.

Further, in the lighting device (4, 4A) of the tenth aspect according to the embodiment, in any one of the first to ninth aspects, the communication unit (45) preferably performs wireless communication.

The lighting device (4, 4A) described above can easily establish communication with the external device (5).

Further, a lighting fixture (1, 1A) according to an eleventh aspect of the embodiment includes the lighting device (4, 4A) according to any one of the first to tenth aspects, a light source (2), and the lighting device. (4, 4A) and a main body (10) to which at least one of the light source (2) is attached.

The above-mentioned lighting equipment (1, 1A) is equipped with a communication section (45) that communicates with an external device (5), and also ensures the lighting time of the light source (2) during a power outage and increases the size of the battery (3). can be suppressed.

Moreover, the lighting system (X1) of the twelfth aspect according to the embodiment includes the lighting device (4, 4A) of any one of the first to tenth aspects and an external device (5).

The above-mentioned lighting system (X1) is equipped with a communication unit (45) that communicates with an external device (5), and also ensures the lighting time of the light source (2) during a power outage and suppresses the increase in the size of the battery (3). can be realized.

1, 1A lighting equipment 2 light source 3 battery 4, 4A lighting device 42 lighting circuit 45 communication section 46 control circuit 47 cutoff section 5 management device (external device)
9 External power supply W1 Power supply path X1 Lighting system

Claims (12)

a lighting circuit that lights up a light source using emergency power supplied from a battery in the event of an external power outage;
a communication section that communicates with external devices;
A control circuit that switches the operation mode of the communication unit to either a normal mode or a power saving mode that reduces power consumption of the communication unit compared to the normal mode,
When the external power supply is energized, the control circuit and the communication unit operate with normal power supplied from the external power supply, and the control circuit sets the operation mode to the normal mode,
During a power outage of the external power source, the control circuit operates using the emergency power and sets the operating mode to the power saving mode;
In the event of a power outage of the external power source, the communication unit operates using the emergency power;
If the operation mode is the power saving mode, the communication unit does not spontaneously transmit a signal to the external device, but receives the signal transmitted from the external device. The lighting device. If the external power supply fails,
The communication unit transmits a power outage notification to the external device,
The lighting device according to claim 1, wherein the control circuit switches the operation mode from the normal mode to the power saving mode. a lighting circuit that lights up a light source using emergency power supplied from a battery in the event of an external power outage;
a communication section that communicates with external devices;
A control circuit that switches the operation mode of the communication unit to either a normal mode or a power saving mode that reduces power consumption of the communication unit compared to the normal mode,
When the external power supply is energized, the control circuit and the communication unit operate with normal power supplied from the external power supply, and the control circuit sets the operation mode to the normal mode,
During a power outage of the external power source, the control circuit operates using the emergency power and sets the operating mode to the power saving mode;
If the external power supply fails,
The communication unit transmits a power outage notification to the external device,
The control circuit switches the operation mode from the normal mode to the power saving mode,
The power outage notification is a signal for notifying the external device that communication between the communication unit and the external device will be impossible.
lighting device. The lighting device according to claim 3 , wherein the control circuit switches the operation mode from the normal mode to the power saving mode after the communication unit transmits the power outage notification. In the event of a power outage of the external power source, the communication unit operates using the emergency power;
The lighting device according to claim 3 or 4 , wherein the communication unit stops communication with the external device if the operation mode is the power saving mode. In the event of a power outage of the external power source, the communication unit operates using the emergency power;
The lighting device according to claim 3 or 4, wherein the communication unit receives a signal transmitted from the external device without spontaneously transmitting a signal to the external device if the operation mode is the power saving mode. further comprising a cutoff unit that conducts or cuts off a power supply path that supplies operating power to the communication unit,
The control circuit includes:
When the operation mode is set to the normal mode, the power supply path is made conductive by the cutoff section,
The lighting device according to claim 3 or 4 , wherein the power supply path is cut off by the cutoff section when the operation mode is set to the power saving mode. When the external power supply is restored,
The communication unit transmits a power restoration notification to the external device,
The lighting device according to any one of claims 1 to 7, wherein the control circuit switches the operation mode from the power saving mode to the normal mode. The lighting device according to claim 8, wherein the power restoration notification includes information on at least one of the duration of the power outage and the details of the abnormality at the time of the power outage. The lighting device according to any one of claims 1 to 9, wherein the communication unit performs wireless communication. A lighting device according to any one of claims 1 to 10,
the light source;
A lighting fixture, comprising: a main body to which at least one of the lighting device and the light source is attached. A lighting device according to any one of claims 1 to 10,
A lighting system comprising: the external device.

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