Emergency lighting device and emergency lighting system

Abstract

An object of the present disclosure is to suppress occurrence of a failure when an inspection is automatically performed.SOLUTION: The control circuit unit 14 that is executing the continuous turn-off mode controls the regular lighting circuit unit 120 to turn off the light source 10. During execution of the inspection mode, the control circuit unit 14 causes the charging circuit unit 121 to stop charging the secondary battery 11 and controls the emergency lighting circuit unit 13 to light the light source 10. When the date and time counted by the clock unit 15 matches the preset date and time of the inspection execution, the control circuit unit 14 executes the inspection mode if the normal lighting mode is being executed. When the date and time counted by the clock unit 15 coincides with the preset date and time of inspection execution, the control circuit unit 14 continuously executes the always-off mode without executing the inspection mode if the always-off mode is being executed.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to an emergency lighting device and an emergency lighting system, and more particularly to an emergency lighting device and an emergency lighting system that are equipped with a secondary battery and provide emergency lighting. [Background technology]

[0002] As a conventional example, an emergency exit light (emergency lighting device) described in Patent Document 1 is exemplified. The emergency exit light described in Patent Document 1 includes a control unit that is configured with a microcomputer or the like that stores a control program and controls each unit, a storage battery (secondary battery), a charging circuit unit, a lamp, a lighting circuit unit, and the like.

[0003] The control unit has a time determination means. The time determination means has a function of determining whether a preset time (date and time) for starting an inspection has arrived. When the time determination means determines that the time for starting an inspection has arrived, the control unit performs an inspection by lighting the lamp in the lighting circuit unit using power supplied from the storage battery. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-152992 Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, the Fire Service Act allows facilities such as theaters, movie theaters, and planetariums to turn off emergency lights during times when darkness is particularly required, such as during a performance in a theater or a screening in a movie theater.

[0006] However, in the above-described conventional example, there is a risk that the inspection will be carried out if the time to start the inspection comes during the lights-out period.

[0007] An object of the present disclosure is to provide an emergency lighting device and an emergency lighting system that can suppress the occurrence of malfunctions when performing automatic inspections. [Means for solving the problem]

[0008] An emergency lighting device according to one aspect of the present disclosure includes a light source, a secondary battery, a normal lighting circuit unit, a charging circuit unit, an emergency lighting circuit unit, a control circuit unit, and a clock unit. The normal lighting circuit unit lights the light source using normal power supplied from a normal power source. The charging circuit unit charges the secondary battery using the normal power. The emergency lighting circuit unit lights the light source using emergency power supplied from the secondary battery. The control circuit unit controls the normal lighting circuit unit, the charging circuit unit, and the emergency lighting circuit unit. The clock unit counts the date and time. The control circuit unit is configured to selectively switch between a normal lighting mode, an emergency lighting mode, a normal light-off mode, and an inspection mode. When the control circuit unit is executing the normal lighting mode, it controls the normal lighting circuit unit to turn on the light source. When the control circuit unit is executing the emergency lighting mode, it controls the emergency lighting circuit unit to turn on the light source. The control circuit unit, while executing the always-off mode, controls the normal lighting circuit unit to turn off the light source. The control circuit unit, while executing the inspection mode, controls the charging circuit unit to stop charging the secondary battery and controls the emergency lighting circuit unit to turn on the light source. When the date and time counted by the clock unit matches a preset inspection execution date and time, the control circuit unit executes the inspection mode if the normal lighting mode is being executed, or continues to execute the always-off mode without executing the inspection mode if the always-off mode is being executed.

[0009] An emergency lighting system according to one embodiment of the present disclosure includes one or more emergency lighting devices and a signal device. The emergency lighting device includes a light source, a secondary battery, a normal lighting circuit unit that turns on the light source using normal power supplied from a normal power source, a charging circuit unit that charges the secondary battery using the normal power, an emergency lighting circuit unit that turns on the light source using emergency power supplied from the secondary battery, and a control circuit unit that controls the normal lighting circuit unit, the charging circuit unit, and the emergency lighting circuit unit. The control circuit unit is configured to selectively switch between a normal lighting mode, an emergency lighting mode, a normal light-off mode, and an inspection mode. The control circuit unit, when executing the normal lighting mode, controls the normal lighting circuit unit to turn on the light source. The control circuit unit, when executing the emergency lighting mode, controls the emergency lighting circuit unit to turn on the light source. The control circuit unit, when executing the normal light-off mode, controls the normal lighting circuit unit to turn off the light source. The control circuit unit, while executing the inspection mode, controls the charging circuit unit to stop charging the secondary battery and controls the emergency lighting circuit unit to turn on the light source. The signaling device includes a clock unit that counts date and time, and a control unit that gives an inspection start signal to the emergency lighting device when the date and time counted by the clock unit matches a preset inspection execution date and time. The control circuit unit executes the inspection mode when it receives the inspection start signal. The control unit does not give the inspection start signal to the emergency lighting device if the control circuit unit is executing the always-off mode. [Effects of the Invention]

[0010] The emergency lighting device and emergency lighting system disclosed herein have the advantage of being able to suppress the occurrence of malfunctions when performing automatic inspections. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a block diagram of an emergency lighting device according to an embodiment of the present disclosure. [Figure 2]FIG. 2 is a perspective view of the emergency lighting device. [Figure 3] FIG. 3 is an exploded perspective view of the emergency lighting device. [Figure 4] FIG. 4 is a block diagram of a first modification of the emergency lighting device. [Figure 5] FIG. 5 is a system configuration diagram of the emergency lighting system. [Figure 6] FIG. 6 is a system configuration diagram of a modified example of the emergency lighting system. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an emergency lighting device A1 and an emergency lighting system S1 according to an embodiment of the present disclosure will be described in detail with reference to the drawings. However, the configurations described in the following embodiments are merely examples 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.

[0013] (1) Overview (1-1) Overview of the emergency lighting device according to the embodiment The emergency lighting device A1 according to the embodiment includes a light source 10, a secondary battery 11, a normal lighting circuit unit 120, a charging circuit unit 121, an emergency lighting circuit unit 13, a control circuit unit 14, and a clock unit 15 (see FIG. 1). The emergency lighting device A1 according to the embodiment is, for example, an emergency exit guide light. However, the emergency lighting device A1 according to the embodiment may be an emergency lighting device other than an emergency exit guide light, such as a stairway guide light or an emergency light.

[0014] The normal lighting circuit unit 120 lights the light source 10 with normal power supplied from the normal power source 8. The normal power source 8 is, for example, a commercial power system with an effective value of 100V or 200V. The charging circuit unit 121 charges the secondary battery 11 with the normal power. The emergency lighting circuit unit 13 lights the light source 10 with emergency power supplied from the secondary battery 11. The control circuit unit 14 controls the normal lighting circuit unit 120, the charging circuit unit 121, and the emergency lighting circuit unit 13. The clock unit 15 counts the date and time (including the year and month).

[0015] Here, when emergency exit guide lights (hereinafter referred to as guide lights) are installed in theaters, movie theaters, planetariums, etc., the Fire Service Act allows them to be turned off during times when darkness is particularly required, such as during a performance in a theater or a movie in a movie theater. In the following description, turning off the light source 10 by the emergency lighting device A1 under the above-mentioned conditions may be referred to as being constantly off.

[0016] The control circuit unit 14 is configured to selectively switch between a normal lighting mode, an emergency lighting mode, a constant light-off mode, and an inspection mode. When the control circuit unit 14 is executing the normal lighting mode, it controls the normal lighting circuit unit 120 to turn on the light source 10. When the control circuit unit 14 is executing the emergency lighting mode, it controls the emergency lighting circuit unit 13 to turn on the light source 10. When the control circuit unit 14 is executing the constant light-off mode, it controls the normal lighting circuit unit 120 to turn off the light source 10. When the control circuit unit 14 is executing the inspection mode, it controls the charging circuit unit 121 to stop charging the secondary battery 11, and controls the emergency lighting circuit unit 13 to turn on the light source 10.

[0017] Furthermore, when the date and time counted by the clock unit 15 matches the preset date and time for inspection, if the normal lighting mode is being executed, the control circuit unit 14 executes the inspection mode. In other words, the emergency lighting device A1 according to the embodiment does not require manual work to start inspection, and the workload required for inspection can be reduced.

[0018] Furthermore, when the date and time counted by the clock unit 15 matches the preset date and time for inspection, if the constant lights-off mode is being executed, the control circuit unit 14 continues the constant lights-off mode without executing the inspection mode. In other words, the emergency lighting device A1 according to the embodiment can prevent the occurrence of a problem in which an inspection is automatically executed while the device is in the constant lights-off mode.

[0019] (1-2) Overview of the emergency lighting system according to the embodiment The emergency lighting system S1 according to the embodiment includes one or more emergency lighting devices A1 and a signal device 7 (see FIG. 5). The emergency lighting device A1 includes a light source 10, a secondary battery 11, a normal lighting circuit unit 120, a charging circuit unit 121, an emergency lighting circuit unit 13, and a control circuit unit 14.

[0020] The normal lighting circuit unit 120 lights the light source 10 with normal power supplied from the normal power source 8. The charging circuit unit 121 charges the secondary battery 11 with the normal power. The emergency lighting circuit unit 13 lights the light source 10 with emergency power supplied from the secondary battery 11. The control circuit unit 14 controls the normal lighting circuit unit 120, the charging circuit unit 121, and the emergency lighting circuit unit 13.

[0021] The control circuit unit 14 is configured to selectively switch between a normal lighting mode, an emergency lighting mode, a constant light-off mode, and an inspection mode. When the control circuit unit 14 is executing the normal lighting mode, it controls the normal lighting circuit unit 120 to turn on the light source 10. When the control circuit unit 14 is executing the emergency lighting mode, it controls the emergency lighting circuit unit 13 to turn on the light source 10. When the control circuit unit 14 is executing the constant light-off mode, it controls the normal lighting circuit unit 120 to turn off the light source 10. When the control circuit unit 14 is executing the inspection mode, it controls the charging circuit unit 121 to stop charging the secondary battery 11, and controls the emergency lighting circuit unit 13 to turn on the light source 10.

[0022] The signal device 7 includes a clock unit 71 that counts the date and time, and a control unit 70 that gives an inspection start signal to the emergency lighting device A1 when the date and time counted by the clock unit 71 matches the date and time of a preset inspection execution.

[0023] The control circuit unit 14 executes the inspection mode when receiving the inspection start signal. In other words, the emergency lighting system S1 according to the embodiment does not require manual work to start the inspection of the emergency lighting device A1, and the workload required to inspect the emergency lighting device A1 can be reduced.

[0024] The control unit 70 of the signaling device 7 does not provide an inspection start signal to the emergency lighting device A1 if the control circuit unit 14 is in the always-off mode. That is, the emergency lighting system S1 according to the embodiment can prevent the occurrence of a problem in which an inspection is automatically performed while the emergency lighting device A1 is always off.

[0025] (2)Details (2-1) Details of the emergency lighting device according to the embodiment Next, an emergency lighting device A1 according to an embodiment will be described in detail with reference to the drawings. The emergency lighting device A1 according to the embodiment (hereinafter abbreviated as lighting device A1) is, for example, an emergency exit lighting device (emergency exit lighting device) installed at an emergency exit of a movie theater. However, the lighting device A1 may also be installed in facilities other than movie theaters, such as theaters and planetariums. Furthermore, the lighting device A1 may be an emergency light or a lighting device other than an emergency exit lighting device (for example, a stairway lighting device).

[0026] (2-1-1) Emergency lighting system configuration As shown in FIG. 1, the lighting device A1 includes a light source 10, a secondary battery 11, a rectifying and smoothing unit 16, a power supply unit 12, an emergency lighting circuit unit 13, a control circuit unit 14, a clock unit 15, a switching unit 17, a control power supply circuit unit 18, an input receiving unit 19, and the like.

[0027] The light source 10 includes, for example, a light emitting diode. However, the light source 10 is not limited to a light emitting diode and may be a cold cathode fluorescent lamp or the like. The light source 10 is configured to illuminate a panel on which an evacuation guidance pictogram is formed, by light emitted from the light emitting diode.

[0028] The secondary battery 11 is, for example, a nickel-metal hydride secondary battery, but may also be a lithium-ion secondary battery.

[0029] The rectifying smoothing unit 16 is configured to rectify and smooth the AC voltage supplied from the utility power supply 8. For example, the rectifying smoothing unit 16 has a full-wave rectifier made up of a diode bridge and a smoothing capacitor that smooths the pulsating voltage output from the full-wave rectifier. However, the rectifying smoothing unit 16 may have a power factor correction circuit made up of a boost chopper circuit or the like in addition to the full-wave rectifier and smoothing capacitor.

[0030] The power supply unit 12 has a flyback converter that steps down the DC voltage input from the rectifying and smoothing unit 16, a normal lighting circuit unit 120, and a charging circuit unit 121. The normal lighting circuit unit 120 is configured to light the light source 10 with the DC voltage stepped down by the flyback converter. The charging circuit unit 121 is configured to charge the secondary battery 11 with the DC voltage stepped down by the flyback converter.

[0031] The emergency lighting circuit section 13 is configured to light the light source 10 with a direct current discharged from the secondary battery 11 .

[0032] The switching unit 17 is configured to selectively switch between a connection state in which the normal lighting circuit unit 120 and the light source 10 are electrically connected, and a non-connection state in which the normal lighting circuit unit 120 and the light source 10 are electrically disconnected.

[0033] The control power supply circuit unit 18 is configured to generate a control power supply voltage from the DC voltage output from the flyback converter of the power supply unit 12 and the discharge voltage of the secondary battery 11. The control power supply voltage generated by the control power supply circuit unit 18 is supplied to circuits having active elements, namely, the power supply unit 12, the switching unit 17, the emergency lighting circuit unit 13, the control circuit unit 14, and the clock unit 15.

[0034] The control circuit unit 14 has a microcontroller. The control circuit unit 14 is configured to cause the processor of the microcontroller to execute a control program, thereby performing various processes, which will be described later.

[0035] The clock unit 15 has, for example, a real-time clock (RTC) module. The RTC module is generally a dedicated integrated circuit (IC) that integrates a clock source such as a quartz oscillator, its oscillation circuit, a date and time counter, etc., and generates digital data such as time, year, month, and day (hereinafter referred to as date and time data). The date and time data generated by the clock unit 15 is input to the control circuit unit 14.

[0036] The input receiving unit 19 receives input for setting the date and time of inspection (hereinafter, may be referred to as an inspection schedule). The input receiving unit 19 is capable of receiving manual input. For example, the input receiving unit 19 has a plurality of push button switches SW1-SW4 for receiving manual input, and a liquid crystal display D1 for displaying the received manual input (see FIG. 3). However, the input receiving unit 19 may receive input for adjusting the date and time of the clock unit 15, in addition to input for setting the inspection schedule.

[0037] The input receiving unit 19 outputs the received input (setting signal) to the control circuit unit 14. The control circuit unit 14 sets the date and time for inspection (inspection schedule) based on the setting signal received from the input receiving unit 19, and stores the set inspection schedule in memory. Then, the control circuit unit 14 executes the inspection mode when the date and time data input from the clock unit 15 matches the inspection schedule stored in memory.

[0038] (2-1-2) Emergency lighting system structure Next, the structure of the lighting device A1 will be briefly described. The lighting device A1 includes a main body A10, a light source unit A11, and a display block A12 (see FIG. 2).

[0039] The main body A10 is made of synthetic resin and has a rectangular box shape with an opening on the front (see FIG. 3). The main body A10 houses the lighting device 1, the battery unit B1, the terminal block 90, the mounting plate 91, etc.

[0040] 1, lighting device 1 has the circuits excluding light source 10 and secondary battery 11, specifically, power supply unit 12, emergency lighting circuit unit 13, control circuit unit 14, clock unit 15, rectifying and smoothing unit 16, switching unit 17, control power circuit unit 18, and input receiving unit 19. In other words, lighting device 1 houses the circuits excluding light source 10 and secondary battery 11 in case 100 formed in a box shape from a synthetic resin material. However, part of input receiving unit 19, specifically, the operation units for multiple push button switches SW1-SW4 and the screen of liquid crystal display D1, are exposed on the front of case 100 (see FIG. 3).

[0041] The mounting plate 91 is formed into a plate shape from a metal material (see FIG. 3). The mounting plate 91 is screwed to the inner bottom surface of the main body A10. The lighting device 1 and the terminal block 90 are screwed to the mounting plate 91 and housed inside the main body A10. The lighting device 1 and the terminal block 90 are electrically connected. The terminal block 90 is electrically connected to a power line that is drawn in from a power supply hole 96 (see FIG. 3) provided on the bottom surface of the main body A10. In other words, the lighting device 1 is electrically connected to the utility power supply 8 through the terminal block 90 and the power line.

[0042] The battery unit B1 has a secondary battery 11 and a battery case 111 that houses the secondary battery 11 (see FIG. 3). The battery unit B1 is detachably attached to a mounting plate 91. The battery unit B1 is configured to electrically connect the secondary battery 11 and the lighting device 1 when attached to the mounting plate 91.

[0043] The display block A12 has a display panel 92, a light guide plate 93, and a holder 94 (see FIG. 3).

[0044] The display panel 92 is formed in the shape of a rectangular flat plate from a translucent synthetic resin material such as acrylic resin or polycarbonate resin. However, the display panel 92 may be formed from a translucent material other than synthetic resin, such as quartz glass. A pictogram 921 for evacuation guidance is displayed on the front surface (display surface 920) of the display panel 92 (see FIG. 3).

[0045] The light guide plate 93 is formed in the shape of a rectangular flat plate from a translucent synthetic resin material such as acrylic resin or polycarbonate resin. The light guide plate 93 is disposed behind the display panel 92 so that its front surface faces the rear surface of the display panel 92 (see FIG. 3). Light emitted from the light source unit A11 is incident on the upper surface (incident surface 930) of the light guide plate 93. The light incident on the incident surface 930 is guided inside the light guide plate 93 and emitted from the front surface of the light guide plate 93. The display panel 92 is illuminated by the light emitted from the exit surface of the light guide plate 93.

[0046] The holder 94 is made of a non-transparent synthetic resin material and has a rectangular box (frame) shape with an open front and top. The holder 94 holds the display panel 92 and the light guide plate 93 such that the display panel 92 is positioned in front of the light guide plate 93 (see FIG. 3).

[0047] The display block A12 is attached to the main body A10 so as to cover the remaining part of the opening of the main body A10 except for the upper part where the light source unit A11 is attached (see FIG. 2).

[0048] The light source unit A11 has a light source 10, a light guide that guides the light emitted from the light source 10, and a housing 95 that houses the light source 10 and the light guide (see FIG. 3).

[0049] The housing 95 is formed in the shape of a long box with its bottom and rear surfaces open. The light source 10 is mounted on a board and housed in one longitudinal end (right end) of the housing 95. The light guide is formed in the shape of a long rectangular pillar and housed in the housing 95 with its one longitudinal end face (right end face) facing the light source 10 and its side face along the longitudinal direction (bottom face) facing the opening in the bottom face of the housing 95. A part of the board on which the light source 10 is mounted (hereinafter referred to as a protruding piece 97) protrudes from the rear face of the housing 95 (see FIG. 3).

[0050] The light source unit A11 is attached to the main body A10 by fitting it into the upper front part of the main body A10. At this time, a protruding piece 97 is inserted into a connector 98 provided in the upper right corner of the main body A10, and the light source unit A11 (light source 10) and the lighting device 1 are electrically connected via the connector 98 and an electric wire (not shown).

[0051] Thus, when the light source unit A11 is attached to the main body A10, the incident surface 930 of the light guide plate 93 and the exit port of the light source unit A11 face each other in the vertical direction. Therefore, almost all of the light emitted from the exit port of the light source unit A11 enters the light guide plate 93 from the incident surface 930 of the light guide plate 93. The light that has entered the light guide plate 93 travels inside the light guide plate 93 and is totally reflected by the rear surface of the holder 94, and is emitted forward from the exit surface of the light guide plate 93 to illuminate the display panel 92.

[0052] (2-1-3) Basic operation of emergency lighting devices Next, the basic operation of the lighting device A1 will be described. The control circuit unit 14 is configured to selectively switch between four operation modes (normal lighting mode, emergency lighting mode, constant light-off mode, and inspection mode).

[0053] The control circuit unit 14 basically operates in the normal lighting mode when normal power is being supplied from the normal power supply 8. When the control circuit unit 14 is operating in the normal lighting mode, it switches the switching unit 17 to the connected state, causes the normal lighting circuit unit 120 to turn on the light source 10, and causes the charging circuit unit 121 to charge the secondary battery 11.

[0054] Furthermore, the control circuit unit 14 executes the emergency lighting mode when normal power is no longer supplied from the normal power source 8 due to a power outage or the like. During execution of the emergency lighting mode, the control circuit unit 14 stops the power supply unit 12 and switches the switching unit 17 to a non-connected state, causing the emergency lighting circuit unit 13 to turn on the light source 10 (emergency lighting).

[0055] Furthermore, when an external light-off signal is input to the control circuit unit 14 while normal power is being supplied from the normal power supply 8, the control circuit unit 14 executes the normal light-off mode. While executing the normal light-off mode, the control circuit unit 14 stops the normal lighting circuit unit 120 and turns off the light source 10 while keeping the charging circuit unit 121 operating. Note that an external light-off signal is input to the control circuit unit 14 when, for example, a movie is being shown at a movie theater or when the movie theater is unoccupied, such as during the period between the closing time and the opening time of the movie theater (nighttime).

[0056] (2-1-4) Emergency lighting equipment inspection operation The control circuit unit 14 executes the inspection mode when the date and time data input from the clock unit 15 matches the inspection schedule stored in memory. While the inspection mode is in operation, the control circuit unit 14 stops the normal lighting circuit unit 120 and the charging circuit unit 121, switches the switching unit 17 to a disconnected state, and causes the emergency lighting circuit unit 13 to turn on the light source 10 (emergency lighting) for a predetermined inspection time (20 or 60 minutes for emergency lights, 30 or 60 minutes for emergency lights). The control circuit unit 14 monitors whether a predetermined current is flowing through the light source 10 during the inspection time, and compares the voltage of the secondary battery 11 after the inspection time with a threshold value to determine whether the secondary battery 11 needs to be replaced. If an abnormality (such as a malfunction of the light source 10 or the need to replace the secondary battery 11) is detected during the inspection, the control circuit unit 14 notifies the user of the abnormality by, for example, flashing an LED indicator. Light emitted from the display LED is emitted to the outside of the main body A10 from, for example, a through hole 101 provided on the bottom surface of the main body A10 (see FIG. 2).

[0057] After the inspection time has elapsed, the control circuit unit 14 switches from the inspection mode to the normal lighting mode and executes the normal lighting mode.

[0058] Here, if the date and time data input from clock unit 15 matches the inspection schedule while the lights-out mode is in operation, control circuit unit 14 continues to operate in the lights-out mode without switching to the inspection mode. For example, during a movie screening at a movie theater, control circuit unit 14 operates in the lights-out mode to turn off light source 10, so it is not desirable for control circuit unit 14 to operate in the inspection mode to turn on light source 10. In other words, since movie theaters change their screenings every few weeks, there is a possibility that the inspection schedule before the change in screening period will overlap with the screening period of the new movie.

[0059] Thus, when the date and time data input from the clock unit 15 matches the inspection schedule, if the lighting device A1 is in the constant off mode, it causes the control circuit unit 14 to continue to execute the constant off mode without executing the inspection mode, thereby preventing the occurrence of a problem where an inspection is automatically executed while the lighting device A1 is in the constant off mode.

[0060] However, in the lighting device A1, it is preferable that the control circuit unit 14 notify the outside that the inspection mode will not be executed if the date and time counted by the clock unit 15 matches the date and time of the inspection while the lighting device A1 is in the always-off mode. For example, the control circuit unit 14 may notify the outside that the inspection mode based on the inspection schedule has not been executed by flashing an LED. The flashing light emitted from the LED is emitted to the outside of the main body A10, for example, from a through-hole 101 provided on the bottom surface of the main body A10 (see FIG. 2).

[0061] Thus, when the lighting device A1 cancels the execution of the inspection mode of the control circuit unit 14 based on the inspection schedule, the lighting device A1 notifies the outside, allowing a person to easily determine that the inspection based on the inspection schedule was not performed. If the control circuit unit 14 does not perform the inspection based on the inspection schedule (inspection mode), the lighting device A1 may continue counting the date and time toward the next scheduled inspection, or may change the inspection schedule stored in memory. For example, the control circuit unit 14 may store in memory a date and time several days or weeks after the canceled inspection schedule as the next scheduled inspection. Alternatively, the control circuit unit 14 may determine the date and time of the next scheduled inspection based on input received by the input receiving unit 19, as described below, and store the date and time in memory.

[0062] Furthermore, when the control circuit unit 14 receives an inspection start signal from outside, it preferably executes the inspection mode regardless of whether the normal lighting mode or the constant lights-out mode is being executed. For example, the control circuit unit 14 may execute the constant lights-out mode to reduce power consumption during the period between the closing and opening of a movie theater. In this case, it is believed that there will be no particular inconvenience if the control circuit unit 14 executes the inspection mode and turns on the light source 10. Therefore, when the control circuit unit 14 receives an inspection start signal from a manual remote controller or the like during the period between the closing and opening of a movie theater, the lighting device A1 can be inspected periodically by causing the control circuit unit 14 to execute the inspection mode.

[0063] Incidentally, if the control circuit unit 14 receives a lights-out signal while the inspection mode is being executed, it executes the lights-out mode in priority to the inspection mode. For example, if a movie starts playing while the control circuit unit 14 is executing the inspection mode, the inspection mode can be interrupted and the lights-out mode executed, thereby preventing the occurrence of a problem in which an inspection is automatically executed while the lights are out.

[0064] In addition, in the lighting device A1, the input receiving unit 19 is configured to be able to accept human operation input using multiple pushbutton switches SW1-SW4 and a liquid crystal display D1 (see FIG. 3). For example, when the pushbutton switch SW1 of the input receiving unit 19 is pressed and held down, the control circuit unit 14 alternates between an inspection schedule setting mode and a time setting mode. Then, when the pushbutton switches SW1-SW4 are pressed and the input receiving unit 19 receives an operation input in the inspection schedule setting mode, the control circuit unit 14 changes the date and time (year, month, day, and time) of the inspection schedule in accordance with the received operation input. Then, when the pushbutton switch SW1 of the input receiving unit 19 is pressed and held down, the control circuit unit 14 ends the inspection schedule setting mode and stores the inspection schedule at that time in memory. Through the above procedure, the lighting device A1 can set an inspection schedule based on human operation.

[0065] (2-1-5) Modified emergency lighting device Next, several modified examples of the lighting device A1 according to the embodiment will be described. However, the basic configuration of the lighting device A1 in each of the modified examples described below is the same as the basic configuration of the lighting device A1 according to the embodiment. Therefore, the same reference numerals will be used to designate the configurations that are common to the basic configuration of the lighting device A1 according to the embodiment, and illustrations and descriptions thereof will be omitted as appropriate. In the following description, "substantially common configuration" means a configuration that is slightly different in shape, size, etc., but has the same function.

[0066] (2-1-5-1) Variation 1 The lighting device A1 of the first modification is characterized by further including a battery 50 that supplies power to the clock unit 15 (see FIG. 4). The battery 50 is, for example, a primary battery such as a button battery. However, the battery 50 may also be a secondary battery or an electric double layer capacitor.

[0067] For example, even if the supply of control power supply voltage from the control power supply circuit unit 18 is stopped, the clock unit 15 can continue counting the date and time by supplying power from the battery 50.

[0068] Therefore, since the lighting device A1 of the first modification further includes the battery 50 that supplies power to the clock unit 15, it is possible to easily allow the clock unit 15 to continue counting the date and time.

[0069] (2-1-5-2) Variation 2 The lighting device A1 of the second modification is characterized by the configuration of the input receiving unit 19. The input receiving unit 19 in the second modification is capable of receiving a received input via a signal medium. The received input is an input for setting the date and time of inspection (inspection schedule).

[0070] The input receiving unit 19 in the second modification is configured to receive (accept) a signal for setting an inspection schedule by using wireless communication using radio waves as a signal medium, such as Wi-Fi (registered trademark) or Bluetooth (registered trademark), or wireless communication using infrared rays as a signal medium. The input receiving unit 19 then passes the received input to the control circuit unit 14.

[0071] The control circuit unit 14 determines the date and time of the inspection schedule based on the received input received from the input receiving unit 19, and stores (sets) the determined date and time of the inspection schedule in memory.

[0072] Therefore, since the lighting device A1 of the second modification has the input receiving unit 19 configured as described above, the inspection schedule can be set from a remote location, thereby improving workability.

[0073] (2-1-5-3) Variation 3 The lighting device A1 of the third modification is characterized by the configuration of the clock unit 15. The clock unit 15 in the third modification is configured to synchronize the date and time counted by an external clock with the date and time counted by itself.

[0074] The date and time counted by an external clock is, for example, Japan Standard Time, which is determined and maintained by the National Institute of Information and Communications Technology (NICT). Japan Standard Time is distributed throughout Japan as a time code using standard radio waves (40 kHz or 60 kHz) as the communication medium. The time code for Japan Standard Time is also distributed via the Internet from a time server operated by the NICT, in addition to standard radio waves.

[0075] The clock unit 15 of the third modification can maintain accurate date and time counting by synchronizing the date and time it counts with the time code received from the standard radio wave or the time server described above. However, the clock unit 15 of the third modification may also receive the time code of Japan Standard Time that is secondarily distributed via a LAN within the office.

[0076] Therefore, the lighting device A1 of variant example 3 is configured so that the clock unit 15 synchronizes the date and time counted by an external clock with the date and time counted by the lighting device A1 itself, thereby avoiding problems caused by discrepancies with the actual time, such as emergency lighting during a movie screening.

[0077] (2-2) Details of the emergency lighting system according to the embodiment Next, the emergency lighting system S1 according to the embodiment will be described in detail with reference to the drawings.

[0078] (2-2-1) Emergency lighting system configuration An emergency lighting system S1 (hereinafter abbreviated as lighting system S1) according to the embodiment has one or more lighting devices A1 and a signal device 7 (see FIG. 5). Although two lighting devices A1 are shown in FIG. 5, the lighting system S1 may have one or three or more lighting devices A1. The lighting device A1 of the lighting system S1 has a common configuration with the emergency lighting device A1 according to the embodiment, except that it does not have a clock unit 15.

[0079] The signal device 7 includes a clock unit 71 that counts the date and time, and a control unit 70 that issues an inspection start signal to the lighting devices A1 when the date and time counted by the clock unit 71 matches a preset inspection execution date and time. The signal device 7 also includes a communication circuit unit 72. The communication circuit unit 72 is configured to transmit the inspection start signal and the light-off signal to each lighting device A1 via a signal line L1. The signal device 7 is installed in a control room or the like of the facility (movie theater, theater, etc.) in question.

[0080] The control unit 70 has a microcontroller. The control unit 70 is configured to cause the processor of the microcontroller to execute a control program, thereby performing various processes, which will be described later.

[0081] The clock unit 71 has an RTC module. That is, the clock unit 71 is configured to count the date and time using the RTC module. However, the clock unit 71 may also be realized by a real-time clock function installed in a microcontroller included in the control unit 70.

[0082] When the date and time data input from the clock unit 71 matches the inspection schedule, the control unit 70 causes the communication circuit unit 72 to transmit an inspection start signal to each lighting device A1.

[0083] (2-2-2) Emergency lighting system operation Next, the operation of the lighting system S1 will be described.

[0084] The control unit 70 of the signal device 7 operates to send a light-off signal to each lighting device A1 when a predetermined on-trigger input is received. Furthermore, the control unit 70 operates to send a signal (hereinafter referred to as a cancel signal) for canceling the light-off signal to each lighting device A1 when a predetermined off-trigger input is received. Here, the on-trigger input and the off-trigger input are generated by, for example, the on / off operation of a manual switch provided on the signal device 7. Furthermore, the on-trigger input and the off-trigger input are generated by the locking / unlocking operation of an electric lock installed at the entrance of a facility (such as a movie theater or theater), the turning on / off operation of a lighting fixture installed in the facility, the on / off output of an automatic flasher, etc. In other words, if the control unit 70 determines that the facility is unoccupied based on the locking operation of the electric lock, the turning off operation of a lighting fixture, or the on output of the automatic flasher, it transmits a light-off signal to each lighting device A1. Furthermore, if the control unit 70 determines that the facility is not unoccupied based on the unlocking operation of the electric lock, the lighting operation of the lighting fixture, and the off output of the automatic flasher, it transmits a cancel signal to each lighting device A1.

[0085] The communication circuit unit 72 is configured to transmit a light-off signal and a cancel signal to each lighting device A1 via the signal line L1 based on instructions from the control unit 70. Each lighting device A1 is assigned a unique address for communication purposes. By specifying the destination address, the communication circuit unit 72 can transmit the light-off signal and the cancel signal to all lighting devices A1, or to one or more specific lighting devices A1.

[0086] Furthermore, when the date and time data input from the clock unit 71 matches the inspection schedule, the control unit 70 transmits an inspection start signal from the communication circuit unit 72 to each lighting device A1 via the signal line L1. The control circuit unit 14 of each lighting device A1 executes inspection mode upon receiving the inspection start signal. If an abnormality is detected during inspection (such as a malfunction of the light source 10 or the need to replace the secondary battery 11), the control circuit unit 14 notifies the occurrence of the abnormality by, for example, blinking an indicator LED. Furthermore, it is preferable that the control circuit unit 14 notify the signal device 7 of the abnormality via the signal line L1. After the inspection period is over, the control circuit unit 14 switches from inspection mode to normal lighting mode and executes the normal lighting mode.

[0087] Here, if the date and time data input from the clock unit 71 matches the inspection schedule while the control circuit unit 14 is in the lights-out mode, the control unit 70 does not transmit an inspection start signal to each lighting device A1. For example, during a movie screening at a movie theater, the signaling device 7 causes the control circuit unit 14 of each lighting device A1 to execute the lights-out mode to turn off the light source 10. Therefore, it is not desirable for the control circuit unit 14 to execute the inspection mode to turn on the light source 10.

[0088] Therefore, when the date and time data input from the clock unit 71 matches the inspection schedule, the signal device 7 does not transmit an inspection start signal if the control circuit unit 14 of each lighting device A1 is in the constant off mode, thereby preventing the occurrence of a malfunction in which inspection is automatically performed while the lighting device is in the constant off mode.

[0089] Incidentally, during the period between the closing time and the opening time of a movie theater, the control circuit unit 14 may be caused to operate in a constant lights-out mode in order to reduce power consumption. In this case, it is believed that no particular inconvenience will arise if the control circuit unit 14 operates in the inspection mode and turns on the light source 10. Therefore, during the period between the closing time and the opening time of a movie theater, the control unit 70 of the signal device 7 can transmit a forced inspection start signal to each lighting device A1 to forcibly cause the control circuit unit 14 to operate in the inspection mode, thereby performing regular inspections.

[0090] Furthermore, when the control circuit unit 14 of each lighting device A1 receives an on-trigger input while the control circuit unit 14 is in the inspection mode, the control unit 70 transmits a light-off signal to each lighting device A1 to execute the lights-off mode in priority over the inspection mode. For example, if a movie starts playing while the control circuit unit 14 of each lighting device A1 is in the inspection mode, the control unit 70 can interrupt the inspection mode and execute the lights-off mode, thereby preventing the occurrence of a malfunction in which an inspection is automatically executed while the lighting device is in the lights-off mode.

[0091] (2-2-3) Variations of emergency lighting systems Next, modified examples of the emergency lighting system S1 according to the embodiment will be described. However, the basic configuration of the emergency lighting system S1 of the modified example described below is common to the basic configuration of the emergency lighting system S1 according to the embodiment. Therefore, the same reference numerals will be used to designate components that are common to the basic configuration of the emergency lighting system S1 according to the embodiment, and illustrations and descriptions thereof will be omitted as appropriate. In the following description, "substantially common configuration" means a configuration that is slightly different in shape, size, etc., but has the same function.

[0092] The lighting system S1 of the modified example is characterized in that the communication circuit unit 72 of the signal device 7 transmits an inspection start signal (including a light-off signal, a cancel signal, and a forced inspection signal; the same applies below) to the lighting device A1 via a power supply line 80 for supplying normal power to the lighting device A1 (see Figure 6).

[0093] The communication circuit unit 72 can transmit data (such as an inspection start signal) by superimposing a high-frequency signal on the AC voltage applied to the power supply line 80 using, for example, a power line carrier communication system.

[0094] Therefore, the lighting system S1 of the modified example transmits the inspection start signal to the communication circuit unit 72 using the power supply line 80 as a medium, and therefore the signal line L1 is not necessary, thereby enabling wiring reduction.

[0095] (3) Summary The emergency lighting device (A1) according to a first aspect of the present disclosure includes a light source (10), a secondary battery (11), a normal lighting circuit unit (120), a charging circuit unit (121), an emergency lighting circuit unit (13), a control circuit unit (14), and a clock unit (15). The normal lighting circuit unit (120) lights the light source (10) using normal power supplied from a normal power source (8). The charging circuit unit (121) charges the secondary battery (11) using the normal power. The emergency lighting circuit unit (13) lights the light source (10) using emergency power supplied from the secondary battery (11). The control circuit unit (14) controls the normal lighting circuit unit (120), the charging circuit unit (121), and the emergency lighting circuit unit (13). The clock unit (15) counts the date and time. The control circuit unit (14) is configured to selectively switch between a normal lighting mode, an emergency lighting mode, a constant light-off mode, and an inspection mode. When the control circuit unit (14) is executing the normal lighting mode, it controls the normal lighting circuit unit (120) to turn on the light source (10). When the control circuit unit (14) is executing the emergency lighting mode, it controls the emergency lighting circuit unit (13) to turn on the light source (10). When the control circuit unit (14) is executing the constant light-off mode, it controls the normal lighting circuit unit (120) to turn off the light source (10). When the control circuit unit (14) is executing the inspection mode, it causes the charging circuit unit (121) to stop charging the secondary battery (11) and controls the emergency lighting circuit unit (13) to turn on the light source (10). When the date and time counted by the clock unit (15) matches a preset inspection date and time, the control circuit unit (14) executes the inspection mode if the normal lighting mode is being executed. When the date and time counted by the clock section (15) coincides with the preset date and time for inspection execution, if the constant light-off mode is being executed, the control circuit section (14) continues to execute the constant light-off mode without executing the inspection mode.

[0096] The emergency lighting device (A1) according to the first aspect can prevent problems that may occur when an inspection is performed automatically, for example, a problem that an inspection is automatically performed while the light is always off.

[0097] An emergency lighting device (A1) according to a second aspect of the present disclosure can be realized by combining it with the first aspect. In the emergency lighting device (A1) according to the second aspect, when an inspection start signal is received from the outside, the control circuit unit (14) preferably executes the inspection mode regardless of whether the control circuit unit (14) is executing the normal lighting mode or the constant light-off mode.

[0098] In the emergency lighting device (A1) according to the second aspect, when the control circuit unit (14) receives an inspection start signal from outside during the period from when the cinema closes until when the cinema opens, for example, the control circuit unit (14) is made to execute an inspection mode, thereby enabling periodic inspection.

[0099] An emergency lighting device (A1) according to a third aspect of the present disclosure can be realized by combining it with the first or second aspect. In the emergency lighting device (A1) according to the third aspect, it is preferable that the control circuit unit (14) executes the constant light-off mode in preference to the inspection mode.

[0100] The emergency lighting device (A1) according to the third aspect can prevent the occurrence of a problem in which inspection is automatically performed while the device is normally turned off.

[0101] An emergency lighting device (A1) according to a fourth aspect of the present disclosure can be realized by combining it with any one of the first to third aspects. The emergency lighting device (A1) according to the fourth aspect preferably further includes an input receiving unit (19) that receives an input for setting the date and time of inspection. The input receiving unit (19) is preferably capable of receiving a human operation input.

[0102] The emergency lighting device (A1) according to the fourth aspect can set an inspection schedule based on human operation.

[0103] An emergency lighting device (A1) according to a fifth aspect of the present disclosure can be realized by combining it with any one of the first to fourth aspects. The emergency lighting device (A1) according to the fifth aspect preferably further includes an input receiving unit (19) that receives an input for setting the date and time of inspection. The input receiving unit (19) is preferably capable of receiving a received input via a signal medium.

[0104] The emergency lighting device (A1) according to the fifth aspect allows the date and time of inspection to be set from a remote location, thereby improving workability.

[0105] An emergency lighting device (A1) according to a sixth aspect of the present disclosure can be realized by combining it with any of the first to fifth aspects. In the emergency lighting device (A1) according to the sixth aspect, it is preferable that the control circuit unit (14) notify the outside that the inspection mode will not be executed when the date and time counted by the clock unit (15) matches the date and time of the inspection execution while the lights-out mode is being executed.

[0106] The emergency lighting device (A1) according to the sixth aspect allows a person to easily determine that an inspection based on the inspection schedule has not been carried out.

[0107] The emergency lighting device (A1) according to a seventh aspect of the present disclosure can be realized by combining it with any one of the first to sixth aspects. The emergency lighting device (A1) according to the seventh aspect preferably further includes a battery (50) that supplies power to the clock unit (15).

[0108] The emergency lighting device (A1) according to the seventh aspect can easily continue counting the date and time using the clock unit (15).

[0109] An emergency lighting device (A1) according to an eighth aspect of the present disclosure can be realized by combining it with any one of the first to seventh aspects. In the emergency lighting device (A1) according to the eighth aspect, the clock unit (15) is preferably configured to synchronize the date and time counted by an external clock with the date and time counted by the clock unit (15).

[0110] The emergency lighting device (A1) according to the eighth aspect can avoid problems caused by a difference from the actual time, such as emergency lighting during a movie screening.

[0111] An emergency lighting system (S1) according to a ninth aspect of the present disclosure includes one or more emergency lighting devices (A1) and a signal device (7). The emergency lighting device (A1) includes a light source (10), a secondary battery (11), a normal lighting circuit unit (120) that turns on the light source (10) using normal power supplied from a normal power source (8), a charging circuit unit (121) that charges the secondary battery (11) using the normal power, an emergency lighting circuit unit (13) that turns on the light source (10) using emergency power supplied from the secondary battery (11), and a control circuit unit (14) that controls the normal lighting circuit unit (120), the charging circuit unit (121), and the emergency lighting circuit unit (13). The control circuit unit (14) is configured to selectively switch between a normal lighting mode, an emergency lighting mode, a normal light-off mode, and an inspection mode. The control circuit unit (14) executing the normal lighting mode controls the normal lighting circuit unit (120) to turn on the light source (10). The control circuit unit (14) executing the emergency lighting mode controls the emergency lighting circuit unit (13) to turn on the light source (10). The control circuit unit (14) executing the normal light-off mode controls the normal lighting circuit unit (120) to turn off the light source (10). The control circuit unit (14) executing the inspection mode controls the charging circuit unit (121) to stop charging the secondary battery (11) and controls the emergency lighting circuit unit (13) to turn on the light source (10). The signal device (7) includes a clock unit (71) that counts the date and time, and a control unit (70) that provides an inspection start signal to the emergency lighting device (A1) when the date and time counted by the clock unit (71) matches a preset date and time for inspection. The control circuit unit (14) executes the inspection mode upon receiving the inspection start signal. The control section (70) does not provide the inspection start signal to the emergency lighting device (A1) if the control circuit section (14) is in the constant light-off mode.

[0112] The emergency lighting system (S1) according to the ninth aspect can suppress the occurrence of a malfunction when the emergency lighting device (A1) automatically performs an inspection, for example, a malfunction in which an inspection is automatically performed while the device is normally turned off.

[0113] An emergency lighting system (S1) according to a tenth aspect of the present disclosure can be realized in combination with the ninth aspect. In the emergency lighting system (S1) according to the tenth aspect, the control unit (70) is preferably configured to provide a forced inspection start signal to the emergency lighting device (A1). When the control circuit unit (14) receives the forced inspection start signal, it is preferable that the control circuit unit (14) executes the inspection mode regardless of whether the control circuit unit (14) is executing the normal lighting mode or the constant light-off mode.

[0114] The emergency lighting system (S1) according to the tenth aspect can perform periodic inspections by causing the control circuit section (14) to execute an inspection mode during the period from when the cinema closes until when it opens, for example.

[0115] An emergency lighting system (S1) according to an eleventh aspect of the present disclosure can be realized in combination with the ninth or tenth aspect. In the emergency lighting system (S1) according to the eleventh aspect, it is preferable that the signal device (7) further includes a communication circuit unit (72). It is preferable that the communication circuit unit (72) transmits the inspection start signal to the emergency lighting device (A1) via a power supply line (80) for supplying normal power to the emergency lighting device (A1).

[0116] The emergency lighting system (S1) according to the eleventh aspect does not require a signal line for communication, thereby enabling wiring savings. [Explanation of symbols]

[0117] A1 Emergency lighting system S1 Emergency Lighting System 7 Signaling Devices 8 Regular power supply 10 light source 11 Secondary battery 13 Emergency lighting circuit section 14 Control circuit section 15 Clock Section 19 Input reception section 70 Control Section 71 Clock Section 72 Communication circuit section 80 Power supply line 120 Regular lighting circuit section 121 Charging circuit section

Claims

1. A light source and A secondary battery, a normal lighting circuit section that lights the light source with normal power supplied from a normal power source; a charging circuit section that charges the secondary battery with the normal power; an emergency lighting circuit unit that lights up the light source using emergency power supplied from the secondary battery; a control circuit section for controlling the normal lighting circuit section, the charging circuit section, and the emergency lighting circuit section; A clock that counts the date and time; Equipped with the control circuit unit is configured to alternatively switch between a normal lighting mode in which the normal lighting circuit unit is controlled to turn on the light source, an emergency lighting mode in which the emergency lighting circuit unit is controlled to turn on the light source, a normal lighting-out mode in which the normal lighting circuit unit is controlled to turn off the light source, and an inspection mode in which the charging circuit unit stops charging the secondary battery and controls the emergency lighting circuit unit to turn on the light source, When the date and time counted by the clock unit coincides with a preset date and time for inspection execution, the control circuit unit executes the inspection mode if the normal lighting mode is being executed, and continues to execute the constant light-off mode without executing the inspection mode if the constant light-off mode is being executed. Emergency lighting equipment.

2. When the control circuit receives an inspection start signal from the outside, the control circuit executes the inspection mode regardless of whether the normal lighting mode or the always-off mode is being executed.

2. The emergency lighting device according to claim 1.

3. The control circuit executes the lights-out mode in priority to the inspection mode.

3. An emergency lighting device according to claim 1 or 2.

4. further comprising an input receiving unit that receives an input for setting the date and time of the inspection; The input receiving unit is capable of receiving an operation input from a person.

3. An emergency lighting device according to claim 1 or 2.

5. further comprising an input receiving unit that receives an input for setting the date and time of the inspection; the input receiving unit is capable of receiving a received input received via a signal medium; 3. An emergency lighting device according to claim 1 or 2.

6. When the date and time counted by the clock unit coincides with the date and time of the inspection during execution of the always-off mode, the control circuit unit notifies an external device that the inspection mode will not be executed.

3. An emergency lighting device according to claim 1 or 2.

7. Further, a battery is provided to supply power to the clock unit.

3. An emergency lighting device according to claim 1 or 2.

8. The clock unit is configured to synchronize the date and time counted by itself with the date and time counted by an external clock.

3. An emergency lighting device according to claim 1 or 2.

9. one or more emergency lighting devices; A signaling device; Has, The emergency lighting device is A light source and A secondary battery, a normal lighting circuit section that lights the light source with normal power supplied from a normal power source; a charging circuit section that charges the secondary battery with the normal power; an emergency lighting circuit unit that lights up the light source using emergency power supplied from the secondary battery; a control circuit section for controlling the normal lighting circuit section, the charging circuit section, and the emergency lighting circuit section; Equipped with the control circuit unit is configured to alternatively switch between a normal lighting mode in which the normal lighting circuit unit is controlled to turn on the light source, an emergency lighting mode in which the emergency lighting circuit unit is controlled to turn on the light source, a normal lighting-out mode in which the normal lighting circuit unit is controlled to turn off the light source, and an inspection mode in which the charging circuit unit stops charging the secondary battery and controls the emergency lighting circuit unit to turn on the light source, The signaling device A clock that counts the date and time; a control unit that issues an inspection start signal to the emergency lighting device when the date and time counted by the clock unit coincides with a preset date and time for inspection; Equipped with the control circuit unit executes the inspection mode when receiving the inspection start signal, the control unit does not provide the inspection start signal to the emergency lighting device when the control circuit unit is in the always-off mode. Emergency lighting system.

10. the control unit is configured to give a forced inspection start signal to the emergency lighting device; When the control circuit receives the forced inspection start signal, the control circuit executes the inspection mode regardless of whether the normal lighting mode or the constant light-off mode is being executed.

10. An emergency lighting system according to claim 9.

11. the signaling device further includes a communication circuit unit; The communication circuit unit transmits the inspection start signal to the emergency lighting device via a power supply line for supplying the normal power to the emergency lighting device.

11. An emergency lighting system according to claim 9 or 10.

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