Lighting fixture and lighting system

Abstract

To determine whether a check using a dummy load is normally implemented.SOLUTION: A lighting fixture A1 comprises a light source 20, a storage battery 30, a charging circuit section 401, a lighting circuit section 402, a check section (control section 404), and a dummy load 5. The charging circuit section 401 charges the storage battery 30 with regular-use power supplied from a regular-use power source (power system P1). The lighting circuit section 402 lights the light source 20 with the charging power charging the storage battery 30. The check section controls the lighting circuit section 402 and performs a check of the storage battery 30. While the check section performs the check, the dummy load 5 consumes the charging power. The check section monitors a current flowing to the dummy load 5 while the check is performed.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to lighting fixtures and lighting systems, and more particularly to lighting fixtures having a storage battery and lighting systems including such lighting fixtures. [Background technology]

[0002] As a conventional example, the lighting fixture described in Patent Document 1 is exemplified. The lighting fixture described in Patent Document 1 (hereinafter referred to as the conventional example) comprises a light-emitting body that emits light when power is supplied, and a storage battery that supplies power to the light-emitting body when power is not supplied from the commercial power source. The conventional example further comprises a dummy load to which power is supplied from the storage battery instead of the light-emitting body when inspecting the storage battery, making it possible to inspect the storage battery without making the light-emitting body emit light. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2023-81405 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned conventional example, it is not possible to determine whether the inspection has been performed normally, i.e., whether power is being supplied from the storage battery to the dummy load.

[0005] An object of the present disclosure is to provide a lighting fixture and a lighting system that can determine whether or not an inspection using a dummy load is being performed normally. [Means for solving the problem]

[0006] A lighting fixture according to one aspect of the present disclosure includes a light source, a storage battery, a charging circuit unit, a lighting circuit unit, an inspection unit, and a dummy load. The charging circuit unit charges the storage battery with normal power supplied from a normal power source. The lighting circuit unit lights the light source with the charging power stored in the storage battery. The inspection unit controls the lighting circuit unit and inspects the storage battery. The dummy load consumes the charging power while the inspection unit is performing the inspection. The inspection unit monitors the current flowing through the dummy load while performing the inspection.

[0007] A lighting system according to an aspect of the present disclosure includes the lighting fixture and a communication device. The inspection unit measures an elapsed time and starts the inspection when the elapsed time reaches a predetermined interval time, or determines whether a scheduled time for the inspection and a current time match and starts the inspection when the current time matches the scheduled time. The lighting fixture further includes an alarm unit. When the inspection unit receives a trigger input for confirmation, the inspection unit causes the alarm unit to notify the alarm unit of the time that has elapsed since the most recent inspection was performed. The communication device transmits a signal including the trigger input to the lighting fixture. The alarm unit replies to the communication device with a signal including information about the time. The communication device notifies the time information included in the signal returned from the alarm unit. Effect of the Invention

[0008] The lighting fixture and lighting system disclosed herein have the advantage of being able to determine whether or not an inspection using a dummy load is being carried out normally. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a block diagram of a lighting fixture according to an embodiment of the present disclosure. [Diagram 2] FIG. 2 is a block diagram of a control unit in the lighting fixture. [Diagram 3] FIG. 3 is a perspective view of the above lighting fixture. [Figure 4]FIG. 4 is an exploded perspective view of the above lighting fixture. [Diagram 5] FIG. 5 is a block diagram of a control unit in the lighting device of the first modification. [Figure 6] FIG. 6 is a block diagram of a lighting fixture according to the second modification. [Figure 7] FIG. 7 is a perspective view of a lighting fixture according to the third modification. [Figure 8] FIG. 8 is an exploded perspective view of a lighting fixture according to the third modification. [Figure 9] FIG. 9 is a system configuration diagram of a lighting system according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, lighting fixtures and lighting systems according to embodiments will be described in detail with reference to the drawings. However, each figure described in the following embodiments is a schematic diagram, and the ratio of the size and thickness of each component does not necessarily reflect the actual dimensional ratio. Note that the configuration described in the following embodiments is merely an example of the present disclosure. The present disclosure is not limited to the following embodiments, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0011] (1) Overview of the lighting fixture according to the embodiment The lighting device A1 according to the embodiment includes a light source 20, a storage battery 30, a charging circuit unit 401, a lighting circuit unit 402, an inspection unit (control unit 404), and a dummy load 5 (see FIG. 1). The light source is, for example, an LED. The storage battery 30 is, for example, a nickel-metal hydride storage battery. However, the light source 20 may be an organic electroluminescence element, a laser diode, or the like. The storage battery 30 may also be a lithium ion storage battery, or the like.

[0012] The charging circuit unit 401 charges the storage battery 30 with normal power supplied from a normal power source. The normal power source is, for example, a power system P1. The lighting circuit unit 402 lights up the light source 20 with the charging power stored in the storage battery 30.

[0013] The inspection unit controls the lighting circuit unit 402 and inspects the storage battery 30. The dummy load 5 consumes the charging power of the storage battery 30 while the inspection unit is performing the inspection. The dummy load 5 is preferably a passive element such as a resistor. Alternatively, the dummy load 5 may be a light-emitting element such as an LED.

[0014] The inspection unit also monitors the current flowing through the dummy load 5 while the inspection is being performed. For example, if no current flows through the dummy load 5 while the inspection is being performed, or if the current flowing through the dummy load 5 is very small, the inspection unit determines that the inspection is not being performed normally. On the other hand, if a sufficient current flows through the dummy load 5 while the inspection is being performed, the inspection unit determines that the inspection is being performed normally.

[0015] Therefore, in the lighting fixture A1 according to the embodiment, the inspection section monitors the current flowing through the dummy load 5 while inspection is being performed, so that it is possible to determine whether the inspection using the dummy load is being performed normally.

[0016] (2) Details of the lighting fixture according to the embodiment The lighting fixture A1 according to the embodiment (hereinafter, abbreviated as lighting fixture A1) is an emergency light, which is a type of battery-equipped emergency lighting fixture. The emergency light is an emergency lighting fixture for general lighting to illuminate evacuation routes in the event of a power outage caused by a disaster such as a fire. Although the lighting fixture A1 is a dedicated emergency lighting fixture that provides only emergency lighting, it may be a combined battery-equipped emergency lighting fixture that provides both normal lighting and emergency lighting. Alternatively, the lighting fixture A1 may be a type of emergency lighting fixture having two or more light sources, and may be a built-in emergency lighting fixture that lights up one or more light sources using an emergency power source and lights up the other light sources using a normal power source.

[0017] (2-1) Structure of lighting fixtures (emergency lights) The lighting fixture A1 is a so-called ceiling-mounted emergency light that is attached directly to the underside (ceiling surface) of the ceiling finish material 9 (see FIG. 3). However, the lighting fixture A1 may be a so-called recessed emergency light that is attached so as to be recessed into the ceiling (ceiling finish material 9) through a hole provided in the ceiling finish material 9.

[0018] The lighting device A1 includes a main unit 1, a light source unit 2, a battery unit 3, a lighting unit 4, and a dummy load 5 (see FIGS. 1, 3, and 4).

[0019] (2-1-1) Main unit The main unit 1 has a disk-shaped mounting plate 10, a bucket-shaped cover 11, and a pair of mounting springs 12 (see FIG. 4).

[0020] The mounting plate 10 is made of a metal material and formed into a disk shape. A circular lead-in hole 100 is opened in the center of the mounting plate 10 (see FIG. 4). The power system P1 and the lighting device 40 of the lighting unit 4 are electrically connected via a power cable inserted into the lead-in hole 100 (see FIG. 1). The mounting plate 10 is fixed to the ceiling surface by being screwed to the ceiling finish material 9.

[0021] The pair of mounting springs 12 are each formed into a substantially diamond shape by a metal wire, and are attached to the peripheral portions of the mounting plate 10, facing each other across the center thereof.

[0022] The cover 11 is formed in a truncated cone shape (bucket shape) with an open top (see FIG. 4). However, the diameter of the top of the cover 11 is slightly larger than the diameter of the mounting plate 10. A circular window hole 110 is provided in the center of the lower surface (bottom surface) of the cover 11. A lens 21 of the light source unit 2, which will be described later, is inserted through this window hole 110. Furthermore, four holes (a first hole 111, a second hole 112, a third hole 113, and a fourth hole 114) are provided in two rows and columns near the window hole 110 on the bottom surface of the cover 11.

[0023] A pair of spring receiving members (not shown) are provided on the inner peripheral surface of the cover 11. The pair of spring receiving members are arranged at positions facing each other across the window hole 110. Each spring receiving member has a groove into which the mounting spring 12 is inserted. Thus, the cover 11 is detachably attached to the mounting plate 10 by inserting the pair of mounting springs 12 one by one into the grooves of the pair of spring receiving members (see FIGS. 3 and 4).

[0024] (2-1-2) Light source unit As shown in FIG. 4, the light source unit 2 includes a light source 20, a lens 21, a holder 22, a heat sink 23, and the like.

[0025] The light source 20 is, for example, a packaged white LED for lighting. The lens 21 is, for example, made of glass and formed in a roughly hemispherical shape. The holder 22 is, for example, made of synthetic resin such as polycarbonate resin and formed in a frame shape with an opening in the center. The heat sink 23 is formed in a U-shape from a plate material made of aluminum or an aluminum alloy. The holder 22 is screwed to the heat sink 23 with the lens 21 protruding from the opening in the center and the light source 20 and the lens 21 sandwiched between the holder 22 and the heat sink 23.

[0026] (2-1-3) Battery unit The battery unit 3 has a plurality of storage batteries 30 (three in the illustrated example) and a battery case 31 that houses the plurality of storage batteries 30 (see FIG. 4). The storage batteries 30 are cylindrical nickel-metal hydride batteries. However, the storage batteries 30 may be rectangular nickel-metal hydride batteries or cylindrical or rectangular lithium-ion batteries. The number of storage batteries 30 may be two or less or four or more, as long as the number satisfies the standard value for the lighting time required for an emergency light.

[0027] The battery case 31 is formed in a cylindrical shape with horseshoe-shaped (U-shaped) bottom surfaces on both the upper and lower sides. The multiple storage batteries 30 are housed in the battery case 31 with their axial directions aligned in the vertical direction and lined up in a row along the radial direction. A connector section 32 is provided at one end of the lower side of the battery case 31. The connector section 32 is configured to electrically connect the multiple storage batteries 30 electrically connected in series in the battery case 31 to a lighting device 40 of the lighting unit 4, which will be described later.

[0028] (2-1-4) Lighting unit The lighting unit 4 has a lighting device 40, a housing 41 that houses the lighting device 40, and a terminal block case 42 (see Figs. 1 and 4). The lighting device 40 is composed of a printed circuit. The housing 41 is made of a synthetic resin material and formed into a box shape, and is attached to the underside of the mounting plate 10 by an appropriate method such as caulking or screwing.

[0029] Terminal block case 42 is made of synthetic resin and is formed into a box shape, and is attached to housing 41 so as to cover the terminal block attached to the outer surface of housing 41. The terminal block is electrically connected to lighting device 40, and is connected to a power cable that is drawn in from lead-in hole 100 in a removable manner. In other words, lighting device 40 is electrically connected to the power cable via the terminal block.

[0030] (2-1-5) Pseudo load The dummy load 5 is, for example, one or more resistors. The dummy load 5 may be a single resistor or a plurality of resistors electrically connected in series or parallel. The dummy load 5 is preferably a passive element such as a resistor, but may also be a light-emitting element such as an LED. However, the dummy load 5 is preferably configured to consume power equal to or greater than the power consumed by the light source 20 during inspection.

[0031] The dummy load 5 in the embodiment is housed in, for example, a case made of synthetic resin and attached to the housing 41 of the lighting unit 4 (see FIG. 4). However, the case housing the dummy load 5 may be attached to the mounting plate 10.

[0032] (2-2) Circuit configuration of lighting fixtures Next, the circuit configuration of the lighting device A1 will be described in detail with reference to Figures 1 and 2. Although only one storage battery 30 is shown in Figure 1, in reality, multiple (e.g., three) storage batteries 30 are electrically connected in series.

[0033] Lighting device A1 includes a lighting device 40 and a dummy load 5. Lighting device 40 includes a power supply circuit unit 400, a charging circuit unit 401, a lighting circuit unit 402, a power failure detection unit 403, a control unit 404, a switching unit (a first relay Ry1 and a second relay Ry2), and two detection elements R1 and R2 (see FIG. 1).

[0034] The power supply circuit unit 400 is configured, for example, by a self-excited switching power supply circuit such as a ringing choke converter, and converts the AC voltage supplied from the power system P1 into a DC voltage lower than the effective value of the AC voltage. However, the power supply circuit unit 400 may also be configured by a power factor correction circuit and a buck converter.

[0035] The charging circuit unit 401 operates when power is supplied from the power system P1, and is configured to cause a constant charging current to flow from the power supply circuit unit 400 to the storage battery 30.

[0036] The lighting circuit unit 402 converts the direct current supplied from the storage battery 30 into a constant current and supplies it to the light source 20 .

[0037] The power failure detection unit 403 is configured to detect a power failure in the power system P1 based on the output voltage of the power supply circuit unit 400, and to notify the control unit 404 when a power failure is detected.

[0038] The switching unit has a first relay Ry1 and a second relay Ry2. The first relay Ry1 is, for example, a normally closed electromagnetic relay. However, the first relay Ry1 may be a normally closed solid-state relay (semiconductor relay). The first relay Ry1 is inserted in a power supply path from the lighting circuit unit 402 to the light source 20. That is, the direct current output from the lighting circuit unit 402 can be supplied to the light source 20 when the first relay Ry1 is on, and cannot be supplied to the light source 20 when the first relay Ry1 is off.

[0039] The second relay Ry2 is, for example, a normally open electromagnetic relay. However, the second relay Ry2 may be a normally open solid-state relay (semiconductor relay). The second relay Ry2 is inserted in a power supply path from the lighting circuit unit 402 to the dummy load 5. That is, the DC current output from the lighting circuit unit 402 can be supplied to the dummy load 5 when the second relay Ry2 is on, and cannot be supplied to the dummy load 5 when the second relay Ry2 is off.

[0040] Thus, the switching unit operates to selectively switch between a first connection state and a second connection state. The first connection state is a state in which the first relay Ry1 is turned on to electrically connect the lighting circuit unit 402 to the light source 20, and the second relay Ry2 is turned off to not electrically connect the lighting circuit unit 402 to the dummy load 5. The second connection state is a state in which the first relay Ry1 is turned off to not electrically connect the lighting circuit unit 402 to the light source 20, and the second relay Ry2 is turned on to electrically connect the lighting circuit unit 402 to the dummy load 5.

[0041] The detection element R1 is, for example, a resistor. The detection element R1 is inserted between the negative electrode of the light source 20 and the ground. That is, the voltage across the detection element R1 (hereinafter, referred to as a first detection voltage Vx1) is proportional to the DC current flowing through the light source 20.

[0042] The detection element R2 is, for example, a resistor. The detection element R2 is inserted between one end of the low potential side of the dummy load 5 and the ground. That is, the voltage across the detection element R2 (hereinafter, referred to as a second detection voltage Vx2) is proportional to the DC current flowing through the dummy load 5.

[0043] The control unit 404 includes a microcontroller 4040, an infrared receiving unit 4041, an operation input receiving unit 4042, a monitor lamp 4043, and the like (see FIG. 2).

[0044] The microcontroller 4040 has one or more processors, a memory, a timer (counter), etc. The microcontroller 4040 causes the one or more processors to execute a program for normal operation (charging the storage battery 30 and turning on the light source 20 in an emergency). The microcontroller 4040 also realizes the function of an inspection unit by executing an inspection program.

[0045] Furthermore, the microcontroller 4040 drives the first relay Ry1 and the second relay Ry2 individually. For example, the microcontroller 4040 maintains the normally closed first relay Ry1 in an off state while outputting a drive signal, and maintains the first relay Ry1 in a default on state by not outputting a drive signal. Similarly, the microcontroller 4040 maintains the normally open second relay Ry2 in an on state while outputting a drive signal, and maintains the second relay Ry2 in a default off state by not outputting a drive signal.

[0046] Here, the microcontroller 4040 has a plurality of input ports, one of which receives the first detection voltage Vx1, and another of which receives the second detection voltage Vx2. The first detection voltage Vx1 and the second detection voltage Vx2 are quantized when input to each input port, and are stored in the memory of the microcontroller 4040 as digital values.

[0047] The infrared receiving unit 4041 can receive a wireless signal (infrared signal) using infrared rays as a medium. The wireless signal is transmitted from a remote controller (communication device). The wireless signal is received by the infrared receiving unit 4041 through a fourth hole 114 provided on the bottom surface of the cover 11. The wireless signal transmitted from the remote controller includes various commands. For example, commands included in the wireless signal include an inspection start command for causing the control unit 404 to start inspection, a confirmation command for confirming the time that has passed since the most recent inspection was performed, and the like.

[0048] The operation input reception unit 4042 has one or more pushbutton switches. The operation input reception unit 4042 receives an operation input when a pushbutton switch is pressed, and outputs an operation input signal corresponding to the received operation input to the microcontroller 4040.

[0049] The monitor lamp 4043 is configured with, for example, an LED that emits green light. The monitor lamp 4043 is controlled by the microcontroller 4040 to light up (emit light).

[0050] The control unit 404 (microcontroller 4040) operates the charging circuit unit 401 to charge the storage battery 30 with normal power supplied from the normal power source (power system P1). The control unit 404 (microcontroller 4040) lights up a monitor lamp 4043 to notify that the storage battery 30 is being charged. The green light emitted from the monitor lamp 4043 is emitted to the outside of the cover 11 through a third hole 113 provided in the bottom surface of the cover 11 (see FIG. 3).

[0051] Furthermore, when the control unit 404 (microcontroller 4040) is notified by the power failure detection unit 403 that the power system P1 has experienced a power failure, it stops the charging circuit unit 401 and stops outputting drive signals to the first relay Ry1 and the second relay Ry2. Therefore, the lighting circuit unit 402 is electrically connected to the light source 20 via the first relay Ry1, but is electrically disconnected from the dummy load 5 (the switching unit is switched to the first connection state). Then, the control unit 404 (microcontroller 4040) operates the lighting circuit unit 402 to light the light source 20 with the charging power discharged from the storage battery 30. Note that the control unit 404 turns off the notification unit (monitor lamp 4043) while the lighting circuit unit 402 is operating.

[0052] Here, the control unit 404 (microcontroller 4040) monitors the current flowing through the light source 20 based on the first detection voltage Vx1 acquired from the detection element R1. Therefore, if the first detection voltage Vx1 is equal to or greater than the threshold value, the control unit 404 (microcontroller 4040) determines that the light source 20 is turned on and emergency lighting is operating normally.

[0053] (2-3) Inspection of lighting fixtures Next, the inspection performed on the lighting fixture A1 will be described. It is considered desirable to check (inspect) the emergency light to switch to emergency lighting and to confirm the lighting time (time the emergency lighting is on) once every six months. If the result of the inspection shows that the emergency lighting does not turn on or the light goes out before the statutory emergency lighting rated time (30 minutes or 60 minutes) has elapsed, it is necessary to take appropriate measures, such as replacing the storage battery 30 with a new one.

[0054] An inspection unit (hereinafter, abbreviated as inspection unit) realized by the control unit 404 (microcontroller 4040) controls the lighting circuit unit 402 and the switching unit to perform inspection. Here, the inspections performed by the inspection unit include a first inspection mode in which the light source 20 is turned on, a second inspection mode in which the light source 20 is turned off and a current is passed through the dummy load 5, manual inspection, and automatic inspection.

[0055] Manual inspection is performed when an operator performing an inspection operation presses the push button switch of the operation input receiving unit 4042, or when the operator operates a remote controller to transmit a wireless signal including an inspection start command. On the other hand, automatic inspection is performed automatically by the inspection unit without the above operation by an operator. In both manual inspection and automatic inspection, the inspection unit can select between a first inspection mode and a second inspection mode.

[0056] In the inspection in the first inspection mode, the inspection unit causes the light source 20 to consume the charging power of the storage battery 30 by turning on the light source 20 using the lighting circuit unit 402. Therefore, by performing the inspection in the first inspection mode, the inspection unit can simultaneously check for the presence or absence of an abnormality (such as a malfunction) in the light source 20 and the presence or absence of an abnormality (a decrease in capacity) in the storage battery 30.

[0057] On the other hand, in the inspection in the second inspection mode, the inspection unit causes the dummy load 5 to consume the charging power of the storage battery 30 by passing a current through the dummy load 5 by the lighting circuit unit 402. Therefore, by performing the inspection in the second inspection mode, the inspection unit can only check whether or not there is an abnormality in the storage battery 30 without turning on the light source 20. Note that it is preferable to select the second inspection mode especially when performing an automatic inspection. In other words, in the case of automatic inspection, if the light source 20 is turned on during inspection, it may cause anxiety to a person who does not know that an inspection is being performed, so it is preferable to be able to perform the inspection without turning on the light source 20.

[0058] In the following description, the inspection unit performs inspection in the second inspection mode.

[0059] (2-3-1) Manual inspection The inspection unit starts inspection when the operation input receiving unit 4042 receives an operation input for starting inspection, or when the infrared receiving unit 4041 receives an inspection start command. The inspection unit stops the charging circuit unit 401 and switches the switching unit from the first connection state to the second connection state, and causes the charging power of the storage battery 30 to be consumed by the dummy load 5 via the lighting circuit unit 402.

[0060] The inspection unit measures the elapsed time from the start of the inspection using a timer in the microcontroller 4040. After the elapsed time measured by the timer reaches the rated time (30 minutes or 60 minutes) for emergency lighting, the inspection unit compares the second detection voltage Vx2 (the current value flowing through the dummy load 5) with a threshold value. If the second detection voltage Vx2 is equal to or greater than the threshold value, the inspection unit determines that there is no abnormality in the storage battery 30 since a sufficient current is being supplied to the dummy load 5. On the other hand, if the second detection voltage Vx2 is less than the threshold value, the inspection unit determines that there is an abnormality in the storage battery 30 since a sufficient current is not being supplied to the dummy load 5. For example, if the storage battery 30 is nearing the end of its life, if the charging power of the storage battery 30 decreases before the rated time is reached, a sufficient current (the minimum current required to light the light source 20) will not be supplied to the light source 20 during emergency lighting.

[0061] If the inspection result shows that there is no abnormality in the storage battery 30, the inspection unit turns on the monitor lamp 4043 and resumes charging by the charging circuit unit 401. On the other hand, if the inspection result shows that there is an abnormality in the storage battery 30, the inspection unit notifies the user of the inspection result that there is an abnormality by blinking the monitor lamp 4043 while keeping the charging circuit unit 401 stopped. That is, in the embodiment, the monitor lamp 4043 corresponds to the notification unit. However, the notification unit may be a device that emits a sound, such as a piezoelectric buzzer.

[0062] (2-3-2) Automatic inspection When the Nth (N=1, 2, ...) inspection is completed and the inspection result is normal, the inspection unit measures the elapsed time from the end of the Nth inspection using a timer in the microcontroller 4040. When the elapsed time reaches a predetermined interval (e.g., 3 months or 13 weeks), the inspection unit starts the N+1th inspection.

[0063] If an abnormality is found in the N+1th inspection, the inspection unit notifies the inspection result that there is an abnormality by stopping charging circuit unit 401 and flashing monitor lamp 4043. On the other hand, if no abnormality is found in the N+1th inspection, the inspection unit turns on monitor lamp 4043 and resumes charging by charging circuit unit 401, and also uses a timer in microcontroller 4040 to measure the elapsed time from the end of the N+1th inspection. Then, the inspection unit performs N+2th, N+3rd, ... inspections each time the elapsed time reaches the interval time.

[0064] Here, the inspection unit may perform the automatic inspection using a method other than the above-mentioned method. For example, the inspection unit may determine whether the scheduled time for the inspection matches the current time, and start the inspection when the current time matches the scheduled time.

[0065] The inspection unit keeps track of the current time (date and time) using an RTC (real-time clock) mounted on the microcontroller 4040. The current time kept by the inspection unit is preferably set according to an operation input received by the operation input receiving unit 4042. The inspection unit preferably sets the inspection start time to a fixed time (e.g., midnight) every three months, starting from the time when the current time is set. The inspection unit then starts inspection when the current time matches the scheduled time.

[0066] Thus, in lighting fixture A1, the inspection unit starts inspection when the elapsed time reaches the interval time or when the current time coincides with the scheduled time. Therefore, lighting fixture A1 does not require manual work to start inspection, and the workload required for inspection can be reduced.

[0067] Incidentally, if the storage battery 30 is determined to have an abnormality during the inspection, the battery unit 3 is replaced. The worker performing the replacement removes the cover 11 from the mounting plate 10 while continuing the power supply from the power system P1, and replaces the battery unit 3. If the supply of charging current from the charging circuit unit 401 is stopped and then resumed, the control unit 404 (microcontroller 4040) determines that the battery unit 3 has been replaced, and resets the elapsed time measured by the timer of the microcontroller 4040. In addition, when the battery unit 3 is replaced and a new storage battery 30 is connected to the charging circuit unit 401, the control unit 404 (microcontroller 4040) causes the charging circuit unit 401 to start supplying a charging current.

[0068] Alternatively, after installing a new battery unit 3, an operator may press an operation member 4050 (see FIG. 3) protruding from the first hole 111 of the cover 11 to cause the operation input receiving unit 4042 to receive an operation input. The operation input receiving unit 4042 outputs an operation input signal corresponding to the received operation input to the control unit 404 (microcontroller 4040). The control unit 404 (microcontroller 4040) resets the elapsed time of the timer based on the operation input signal received from the operation input receiving unit 4042.

[0069] When the storage battery 30 (battery unit 3) is replaced, the inspection unit starts measuring the time that has elapsed since the replacement. When the elapsed time reaches a predetermined charging time, the inspection unit performs the first (first) inspection, and after the inspection is completed, resets the elapsed time and starts measuring again from zero. The charging time is the time (e.g., 48 hours) required to fully charge a new battery unit 3 (storage battery 30).

[0070] Meanwhile, when the inspection unit is performing inspection and is notified of the occurrence of a power outage by the power outage detection unit 403, the inspection unit stops the inspection. Then, when the control unit 404 (microcontroller 4040) is notified of the occurrence of a power outage, as already described, the control unit 404 switches the switching unit to the first connection state, and causes the lighting circuit unit 402 to light the light source 20 using the charging power of the storage battery 30 to perform emergency lighting.

[0071] Here, the inspection unit may set whether or not to perform automatic inspection and the method of automatic inspection (the above-mentioned two types of automatic inspection methods) according to the operation input accepted by the operation input accepting unit 4042 or the control command received by the infrared receiving unit 4041. Furthermore, it is preferable that the inspection unit notifies whether or not to perform automatic inspection and the setting contents of the automatic inspection method by the notification unit (monitor lamp 4043). For example, when the inspection unit receives an operation input signal or a control command for confirming the setting contents, it is preferable that the inspection unit notifies whether or not to perform automatic inspection and the setting contents of the automatic inspection method according to the blinking pattern of the monitor lamp 4043.

[0072] (2-3-3) Checking automatic inspection However, when the inspection unit is set to perform automatic inspection, if the inspection result shows no abnormality, it is difficult to determine whether or not the inspection is actually being performed.

[0073] Therefore, in lighting fixture A1, when the inspection unit receives a trigger input for checking, it is desirable to have the notification unit (monitor lamp 4043) notify the user of the time that has passed since the most recent inspection.

[0074] For example, assume that the interval period for automatic inspection is set to 13 weeks, and the inspection unit receives a confirmation trigger input during the period (13 weeks) between the most recent (Nth) inspection and the next (N+1th) inspection. The inspection unit blinks the monitor lamp 4043 according to the elapsed time (the elapsed time from the end of the Nth inspection) measured by the timer of the microcontroller 4040. For example, the inspection unit blinks only once if the elapsed time is less than three weeks, blinks twice if the elapsed time is between three weeks and six weeks, blinks three times if the elapsed time is between six weeks and nine weeks, and blinks four times if the elapsed time is between nine weeks and 13 weeks.

[0075] Therefore, by using the notification unit (monitor lamp 4043) to notify the operator of the time that has elapsed since the inspection unit last performed an inspection, the operator can know whether the automatic inspection is being performed correctly and when the most recent inspection was performed.

[0076] (2-4) Modifications of the lighting fixture according to the embodiment Next, modified examples of the lighting fixture A1 according to the embodiment will be described. However, the basic configuration of the lighting fixture A1 of the modified example described below is the same as the basic configuration of the lighting fixture A1 according to the embodiment. Therefore, the same reference numerals will be used to designate configurations that are common to the basic configuration of the lighting fixture A1 according to the embodiment, and illustrations and descriptions thereof will be omitted as appropriate. In the following description, "substantially common configuration" refers to configurations that are slightly different in shape, size, etc., but have the same function.

[0077] (2-4-1) Variation 1 Lighting device A1 of modification 1 is characterized by the configuration of control unit 404. As shown in Fig. 5 , control unit 404 in modification 1 includes a wireless communication unit 4044 that performs wireless communication using electromagnetic waves as a medium, instead of infrared receiving unit 4041.

[0078] The wireless communication unit 4044 performs wireless communication conforming to standards such as Wi-Fi (registered trademark) or Bluetooth (registered trademark). The wireless communication unit 4044 transmits and receives information to and from a portable information terminal having a wireless communication function, such as a smartphone or a tablet PC (personal computer). The wireless communication unit 4044 transmits a wireless signal including a comparison result by the inspection unit (a result of comparing the second detection voltage Vx2 with a threshold value). That is, the wireless communication unit 4044 in the first modification corresponds to a notification unit.

[0079] The wireless signal transmitted from the wireless communication unit 4044 is received, for example, by an information terminal carried by the worker. The information terminal displays the comparison result included in the wireless signal received from the wireless communication unit 4044, for example, as text information on a display. Thus, the worker can visually confirm information such as whether the inspection of lighting fixture A1 is being performed normally, whether there are any abnormalities in the inspection results, and how much time has passed since the most recent inspection, from the text information displayed on the display of the portable information terminal.

[0080] Thus, lighting fixture A1 of modification 1 can notify a worker or the like in a remote location of the comparison result via wireless communication.

[0081] (2-4-2) Variation 2 The lighting fixture A1 of the second modification is characterized in that it is configured to detect the current flowing through the light source 20 and the current flowing through the dummy load 5 by one detection element R1. One end of the detection element R1 in the second modification is electrically connected to the negative electrode of the light source 20 and one end on the low potential side of the dummy load 5. In other words, the current flowing through the light source 20 and the current flowing through the dummy load 5 both flow through the detection element R1.

[0082] Thus, lighting fixture A1 of modification 2 detects the current flowing through light source 20 and the current flowing through dummy load 5 by using one detection element R1, and therefore costs can be reduced by reducing the number of circuit elements.

[0083] (2-4-3) Variation 3 As shown in Figs. 7 and 8, lighting fixture A2 of modification 3 is an emergency lighting fixture (guide light) for indicating an escape route or a path to an escape route in the event of a power outage caused by a disaster such as a fire.

[0084] The lighting fixture A2 includes a lighting device A20, a body A21, a light source unit A22, a display block A23, a battery unit A24, and the like.

[0085] The housing A21 is made of synthetic resin and has a rectangular box shape with an opening on the front (see FIG. 8). The housing A21 houses the lighting device A20, the battery unit A24, a terminal block 60, a mounting plate 61, and the like.

[0086] The mounting plate 61 is formed into a plate shape from a metal material (see FIG. 8). The mounting plate 61 is screwed to the inner bottom surface of the housing A21. The lighting device A20 and the terminal block 60 are screwed to the mounting plate 61 and housed in the housing A21. The lighting device A20 and the terminal block 60 are electrically connected to each other. The terminal block 60 is electrically connected to a power line that is drawn in from a power supply hole 66 (see FIG. 8) provided on the bottom surface of the housing A21. In other words, the lighting device A20 is electrically connected to the power system P1 through the terminal block 60 and the power line.

[0087] The battery unit A24 has a storage battery. The battery unit A24 is detachably attached to the mounting plate 61. The battery unit A24 is electrically connected to the lighting device A20 in a state where it is attached to the mounting plate 61.

[0088] The display block A23 has a display panel 62, a light guide plate 63, and a holder 64 (see FIG. 8).

[0089] The display panel 62 is formed in a rectangular flat plate shape from a synthetic resin material having translucency, such as acrylic resin or polycarbonate resin. However, the display panel 62 may be formed from a material having translucency other than synthetic resin, such as quartz glass. A pictogram 621 for evacuation guidance is displayed on the front surface (display surface 620) of the display panel 62 (see FIG. 7).

[0090] The light guide plate 63 is formed in a rectangular flat plate shape from a synthetic resin material having translucency, such as acrylic resin or polycarbonate resin. The light guide plate 63 is disposed behind the display panel 62 so that its front surface faces the rear surface of the display panel 62 (see FIG. 8). Light emitted from the light source unit A22 is incident on the upper surface (incident surface 630) of the light guide plate 63. The light incident on the incident surface 630 is guided inside the light guide plate 63 and emitted from the front surface of the light guide plate 63. The display panel 62 is illuminated by the light emitted from the exit surface of the light guide plate 63.

[0091] The holder 64 is made of a non-transparent synthetic resin material and is formed in a rectangular box shape (frame shape) with an open front and top. The holder 64 holds the display panel 62 and the light guide plate 63 such that the display panel 62 is disposed in front of the light guide plate 63 (see FIG. 8).

[0092] The display block A23 is attached to the body A21 so as to cover the remaining part of the opening of the body A21 except for the upper part where the light source unit A22 is attached (see FIG. 7).

[0093] The light source unit A22 has a light source formed of an LED, a light guide that guides the light emitted from the light source, and a housing 65 that houses the light source and the light guide (see FIG. 8).

[0094] The housing 65 is formed in a long box shape with the bottom and rear open. The light source is mounted on a board and housed in one end (right end) of the housing 65 in the longitudinal direction. The light guide is formed in a long rectangular column shape and housed in the housing 65 with one end face (right end face) in the longitudinal direction facing the light source and with the side face (bottom face) along the longitudinal direction facing the opening part in the bottom face of the housing 65. A part of the board on which the light source is mounted (hereinafter referred to as a protruding piece 67) protrudes from the rear face of the housing 65 (see FIG. 8).

[0095] The light source unit A22 is attached to the housing A21 by fitting it into the upper front part of the housing A21. At this time, a protruding piece 67 is inserted into a connector 68 provided in the upper right corner of the housing A21, so that the light source unit A22 (light source) and the lighting device A20 are electrically connected via the connector 68 and an electric wire.

[0096] Thus, in a state where the light source unit A22 is attached to the housing A21, the incident surface 630 of the light guide plate 63 and the exit port of the light source unit A22 face each other in the vertical direction. Therefore, almost all of the light emitted from the exit port of the light source unit A22 enters the light guide plate 63 from the incident surface 630 of the light guide plate 63. The light that enters the light guide plate 63 is totally reflected by the rear surface of the holder 64 while traveling inside the light guide plate 63, and is emitted forward from the exit surface of the light guide plate 63 to illuminate the display panel 62.

[0097] The lighting device A20 is configured to charge the storage battery with regular power supplied from the power system P1 and turn on the light source, and to turn on the light source with the charging power of the storage battery when the supply of regular power is stopped. Furthermore, the lighting device A20 has a configuration similar to that of the dummy load 5, inspection unit, switching unit, and detection element in the lighting fixture A1 according to the embodiment. The dummy load 5 is housed in a synthetic resin case and is disposed on the side (top) of the lighting device A20 (see FIG. 8).

[0098] Thus, like the lighting fixture A1 according to the embodiment, the lighting fixture A2 according to the third modification can determine whether or not the inspection using the dummy load 5 has been performed normally.

[0099] (3) Embodiments of the lighting system A lighting system S1 according to an embodiment (hereinafter, abbreviated as lighting system S1) includes a plurality of lighting fixtures A1 (or lighting fixtures A2) and a communication device B1 (see FIG. 9). Each of the lighting fixtures A1 is electrically connected to a power system P1. The lighting system S1 may include only one lighting fixture A1.

[0100] The communication device B1 is, for example, a tablet PC having a wireless communication function conforming to standards such as Wi-Fi (registered trademark) or Bluetooth (registered trademark). However, the communication device B1 is not limited to a tablet PC, and may be a smartphone or a notebook personal computer (so-called notebook PC). The communication device B1 can transmit and receive information via wireless communication with the wireless communication unit 4044 provided in each lighting fixture A1.

[0101] The communication device B1 executes a program for work (application program) and displays buttons (icons) for instructing the start of inspection on a touch panel display B11. When the button for instructing the start of inspection is touched, the communication device B1 transmits a wireless signal including an inspection start command.

[0102] The inspection unit of each lighting fixture A1 starts inspection when the wireless communication unit 4044 receives a wireless signal including an inspection start command. The inspection unit stops the charging circuit unit 401 and switches the switching unit from the first connection state to the second connection state, and causes the charging power of the storage battery 30 to be consumed by the dummy load 5 via the lighting circuit unit 402.

[0103] The inspection unit of each lighting fixture A1 also measures the elapsed time from the end of the Nth inspection using a timer in the microcontroller 4040, and starts the (N+1)th inspection when the elapsed time reaches the interval time. Alternatively, the inspection unit of each lighting fixture A1 determines whether the scheduled time for inspection matches or does not match the current time, and starts the inspection when the current time matches the scheduled time.

[0104] Furthermore, when a button for receiving a confirmation trigger input is touched, the communication device B1 transmits a wireless signal including a control command corresponding to the confirmation trigger input.

[0105] When the wireless communication unit 4044 of the inspection unit of each lighting fixture A1 receives a wireless signal including a control command for confirmation, the inspection unit of each lighting fixture A1 causes the wireless communication unit 4044 to transmit a wireless signal including information on the time elapsed since the end of the most recent inspection to the communication device B1. However, the inspection unit of each lighting fixture A1 may transmit a signal including inspection result information of the most recent inspection (whether the storage battery 30 is good or bad) from the wireless communication unit 4044 to the communication device B1, in addition to the time elapsed since the end of the most recent inspection.

[0106] The communication device B1 receives wireless signals transmitted from the wireless communication unit 4044 of each lighting fixture A1, and displays the time (elapsed time) information and inspection result information contained in the wireless signals in the form of characters or symbols on the display B11. Note that the time (elapsed time) information transmitted from each lighting fixture A1 may be the net time elapsed since the end of the most recent inspection, or may be a period of time such as one week to several weeks.

[0107] Thus, if the notification unit (wireless communication unit 4044) notifies communication device B1 of the time that has elapsed since the inspection unit performed the most recent inspection, the worker can know whether the automatic inspection is being performed correctly, when the most recent inspection was performed, and the results of the most recent inspection. Moreover, since the lighting system S1 displays the above information on the display unit (display B11) of communication device B1, notification can be made more simply and reliably than when the monitor lamp 4043 of each lighting fixture A1 is flashed to notify.

[0108] (4) Summary A lighting fixture (A1; A2) according to a first embodiment of the present disclosure includes a light source (20), a storage battery (30), a charging circuit unit (401), a lighting circuit unit (402), an inspection unit (control unit 404), and a dummy load (5). The charging circuit unit (401) charges the storage battery (30) with normal power supplied from a normal power source (power system P1). The lighting circuit unit (402) lights the light source (20) with the charging power stored in the storage battery (30). The inspection unit controls the lighting circuit unit (402) and inspects the storage battery (30). The dummy load (5) consumes the charging power while the inspection unit is performing the inspection. The inspection unit monitors the current flowing through the dummy load (5) while performing the inspection.

[0109] The lighting fixture (A1; A2) according to the first aspect has an inspection section that monitors the current flowing through the dummy load (5) while the inspection is being performed, and therefore it is possible to determine whether the inspection using the dummy load (5) is being performed normally.

[0110] A lighting fixture (A1; A2) according to a second aspect of the present disclosure can be realized by combining it with the first aspect. In the lighting fixture (A1; A2) according to the second aspect, it is preferable that the inspection unit further includes a detection element (R2) that detects a current flowing through the dummy load (5). It is preferable that the inspection unit monitors the current flowing through the dummy load (5) based on a current value (second detection voltage Vx2) detected by the detection element (R2).

[0111] The lighting fixture (A1; A2) according to the second aspect can more accurately determine whether or not the inspection using the dummy load (5) is being performed normally.

[0112] A lighting fixture (A1; A2) according to a third aspect of the present disclosure can be realized by combining with the first or second aspect. In the lighting fixture (A1; A2) according to the third aspect, it is preferable that the inspection unit stops the inspection when the supply of regular power is stopped during the inspection. It is preferable that the lighting circuit unit (402) turns on the light source (20) with the charging power when the inspection unit stops the inspection.

[0113] The lighting fixtures (A1, A2) according to the third aspect can reliably provide emergency lighting even during inspection.

[0114] A lighting fixture (A1; A2) according to a fourth aspect of the present disclosure may be realized by combining with any one of the first to third aspects. The lighting fixture (A1; A2) according to the fourth aspect preferably further includes a switching unit (first relay Ry1, second relay Ry2) that switches between a first connection state and a second connection state. The first connection state is a connection state in which the lighting circuit unit (402) is electrically connected to the light source (20) and is not electrically connected to the dummy load (5). The second connection state is a connection state in which the lighting circuit unit (402) is electrically connected to the dummy load (5) and is not electrically connected to the light source. It is preferable that the inspection unit controls the switching unit to switch from the first connection state to the second connection state when an inspection start input (inspection start operation input; inspection start command) is received, thereby performing inspection.

[0115] In the lighting fixture (A1; A2) of the fourth aspect, the inspection unit switches the switching unit to the first connection state except during inspection, so that the light source (20) can be turned on quickly and reliably to provide emergency lighting when the supply of normal power is interrupted.

[0116] A lighting device (A1; A2) according to a fifth aspect of the present disclosure can be realized by combining with the fourth aspect. It is preferable that the inspection unit alternatively switches between a first inspection mode in which inspection is performed with the switching unit switched to the first connection state, and a second inspection mode in which inspection is performed with the switching unit switched to the second connection state.

[0117] The lighting fixture (A1; A2) according to the fifth aspect can switch between an inspection (second inspection mode) in which the light source (20) is turned off and the dummy load (5) and an inspection (first inspection mode) in which the light source (20) is turned on. As a result, the lighting fixture (A1; A2) according to the fifth aspect can selectively inspect only the storage battery (30) or inspect both the storage battery (30) and the light source (20) at any time.

[0118] A lighting fixture (A1; A2) according to a sixth aspect of the present disclosure can be realized by combining it with the fourth aspect. In the lighting fixture (A1; A2) according to the sixth aspect, the switching unit preferably has a normally closed first relay (Ry1) inserted in a first power supply path from the lighting circuit unit (402) to the light source (20) and a normally open second relay (Ry2) inserted in a second power supply path from the lighting circuit unit (402) to the dummy load (5). It is preferable that the switching unit switches to the first connection state by turning on the first relay (Ry1) and turning off the second relay (Ry2), and switches to the second connection state by turning off the first relay (Ry1) and turning on the second relay (Ry2).

[0119] In the lighting fixture (A1; A2) of the sixth aspect, for example, even if the inspection unit breaks down, the first connection state can be maintained by the normally closed first relay (Ry1) and the normally open second relay (Ry2), so that the light source (20) can be reliably turned on to provide emergency lighting when the supply of normal power is stopped.

[0120] A lighting fixture (A1; A2) according to a seventh aspect of the present disclosure may be realized in combination with the second aspect. The lighting fixture (A1; A2) according to the seventh aspect preferably further includes a notification unit (monitor lamp 4043). The inspection unit preferably compares the current value detected by the detection element (R2) with a threshold value. The notification unit preferably notifies the result of the comparison between the current value and the threshold value by the inspection unit.

[0121] In the lighting fixture (A1; A2) of the seventh aspect, the inspection unit can determine whether inspection has been performed and whether the storage battery (30) is normal by comparing the current value detected by the detection element (R2) with a threshold value.

[0122] A lighting device (A1; A2) according to an eighth aspect of the present disclosure can be realized in combination with the seventh aspect. In the lighting device (A1; A2) according to the eighth aspect, it is preferable that the notification unit notifies the comparison result by using light or sound.

[0123] The lighting fixture (A1; A2) according to the eighth aspect can notify the result of the comparison (whether or not an inspection has been performed and whether or not the storage battery (30) is normal) by light or sound.

[0124] A lighting device (A1; A2) according to a ninth aspect of the present disclosure can be realized in combination with the seventh or eighth aspect. In the lighting device (A1; A2) according to the ninth aspect, it is preferable that the notification unit (wireless communication unit 4044) performs wireless communication using electromagnetic waves as a medium and transmits a wireless signal including the comparison result.

[0125] The lighting fixtures (A1; A2) according to the ninth aspect can notify the comparison result to a worker or the like in a remote location via wireless communication.

[0126] A lighting device (A1; A2) according to a tenth aspect of the present disclosure can be realized in combination with any of the first to ninth aspects. In the lighting device (A1; A2) according to the tenth aspect, it is preferable that the inspection unit measures an elapsed time and starts inspection when the elapsed time reaches a predetermined interval time.

[0127] The lighting fixtures (A1; A2) according to the tenth aspect eliminate the need for manual work for the inspection department to start inspection, and therefore can reduce the workload required for inspection.

[0128] A lighting device (A1; A2) according to an eleventh aspect of the present disclosure can be realized by combining it with any of the first to ninth aspects. In the lighting device (A1; A2) according to the eleventh aspect, it is preferable that the inspection unit determines whether a scheduled time for inspection matches or does not match the current time, and starts the inspection when the current time matches the scheduled time.

[0129] The lighting fixtures (A1; A2) according to the eleventh aspect eliminate the need for manual work by the inspection department to start inspection, and therefore can reduce the workload required for inspection.

[0130] A lighting device (A1; A2) according to a twelfth aspect of the present disclosure may be realized in combination with the tenth or eleventh aspect. The lighting device (A1; A2) according to the twelfth aspect preferably further includes an alarm unit. When a trigger input for confirmation is received, the inspection unit preferably causes the alarm unit to notify the alarm unit of the time that has elapsed since the most recent inspection was performed.

[0131] The lighting fixtures (A1; A2) according to the twelfth aspect can inform whether or not an inspection has been performed correctly and when the most recent inspection was performed.

[0132] A lighting system (S1) according to a thirteenth aspect of the present disclosure includes the lighting fixtures (A1; A2) according to the twelfth aspect and a communication device (B1) capable of communicating with the lighting fixtures (A1; A2). The communication device (B1) transmits a signal including a trigger input to the lighting fixtures (A1; A2). The notification unit replies to the communication device (B1) with a signal including time information. The communication device (B1) notifies the communication device of the time information included in the signal returned from the notification unit.

[0133] The lighting system (S1) according to the thirteenth aspect can report, by the communication device (B1), whether or not the inspection has been performed correctly and when the most recent inspection was performed.

[0134] A lighting system (S1) according to a fourteenth aspect of the present disclosure may be realized by combining with the thirteenth aspect. In the lighting system (S1) according to the fourteenth aspect, it is preferable that the notification unit transmits a signal including inspection result information of the most recently performed inspection to the communication device (B1). It is preferable that the communication device (B1) notifies the inspection result information included in the signal returned from the notification unit.

[0135] The lighting system (S1) according to the fourteenth aspect can report the inspection result by the communication device (B1).

[0136] A lighting system (S1) according to a fifteenth aspect of the present disclosure can be realized in combination with the fourteenth aspect. In the lighting system (S1) according to the fifteenth aspect, the communication device (B1) preferably has a display unit (display B11) that displays time information and inspection result information on a screen.

[0137] The lighting system (S1) according to the fifteenth aspect displays time information and inspection result information on the display unit of the communication device (B1), so that notification can be made simply and reliably. [Explanation of symbols]

[0138] A1;A2 Lighting equipment S1 Lighting System B1 Communication equipment B11 Display (Display unit) R2 Detector element Vx2 Second detection voltage (current value detected by detection element R2) Ry1 First relay (switching part) Ry2 Second relay (switching part) 5 Pseudo load 20 light source 30 Storage battery 401 Charging circuit section 402 Lighting circuit section 404 Control section (inspection section) 4043 Monitor lamp (alarm unit) 4044 Wireless communication unit (alarm unit)

Claims

1. A light source; A storage battery, A charging circuit unit that charges the storage battery with normal power supplied from a normal power source; a lighting circuit unit that lights up the light source with the power charged in the storage battery; an inspection unit that controls the lighting circuit unit and inspects the storage battery; a dummy load that consumes the charging power while the inspection unit is performing inspection; Equipped with The inspection unit monitors a current flowing through the dummy load while performing the inspection. Lighting fixtures.

2. The inspection unit further includes a detection element that detects a current flowing through the dummy load, and monitors the current flowing through the dummy load based on a current value detected by the detection element.

2. The lighting device of claim 1.

3. The inspection unit stops the inspection when the supply of the regular power is stopped during the inspection, The lighting circuit unit turns on the light source with the charging power when the inspection unit stops the inspection.

3. A lighting fixture according to claim 1 or 2.

4. a switching unit that switches between a first connection state in which the lighting circuit unit is electrically connected to the light source and is not electrically connected to the dummy load and a second connection state in which the lighting circuit unit is electrically connected to the dummy load and is not electrically connected to the light source, The inspection unit controls the switching unit to switch from the first connection state to the second connection state when an inspection start input is received, and performs the inspection.

3. A lighting fixture according to claim 1 or 2.

5. The inspection unit alternatively switches between a first inspection mode in which the inspection is performed with the switching unit switched to the first connection state and a second inspection mode in which the inspection is performed with the switching unit switched to the second connection state.

5. A lighting device according to claim 4.

6. The switching unit is a first relay of a normally closed type inserted in a first power supply path from the lighting circuit unit to the light source; a second relay of a normally open type inserted in a second power supply path from the lighting circuit unit to the dummy load; having the switching unit switches to the first connection state by turning on the first relay and turning off the second relay, and switches to the second connection state by turning off the first relay and turning on the second relay.

5. A lighting device according to claim 4.

7. Further comprising a notification unit, The inspection unit compares the current value detected by the detection element with a threshold value, The notification unit notifies a result of a comparison between the current value and the threshold value by the inspection unit.

3. A lighting device according to claim 2.

8. The notification unit notifies the comparison result by using light or sound.

8. A lighting device according to claim 7.

9. The notification unit performs wireless communication using electromagnetic waves as a medium and transmits a wireless signal including the comparison result.

9. A lighting fixture according to claim 7 or 8.

10. The inspection unit measures an elapsed time and starts the inspection when the elapsed time reaches a predetermined interval time.

2. A lighting device according to claim 1.

11. the inspection unit determines whether a scheduled time for performing the inspection matches a current time, and starts the inspection when the current time matches the scheduled time.

2. A lighting device according to claim 1.

12. Further comprising a notification unit, When the inspection unit receives a trigger input for confirmation, the inspection unit notifies the notification unit of the time that has elapsed since the most recent inspection was performed.

12. A lighting device according to claim 10 or 11.

13. A lighting fixture according to claim 12; A communication device capable of communicating with the lighting fixture; having The communication device transmits a signal including the trigger input to the lighting fixture; The notification unit returns a signal including information about the time to the communication device, The communication device notifies the time information included in the signal returned from the notification unit. Lighting system.

14. The notification unit transmits the signal including inspection result information of the most recently performed inspection to the communication device, The communication device notifies the inspection result information contained in the signal returned from the notification unit.

14. The lighting system of claim 13.

15. The communication device has a display unit that displays the time information and the inspection result information on a screen.

15. The lighting system of claim 14.

Images