Emergency lighting system

Abstract

To eliminate or reduce the inconvenience that the lighting state of a light source 410 during inspection of an emergency power supply 10 differs from that during normal use.SOLUTION: An emergency lighting system 1000 according to the present disclosure turns on a light source 410 for a first time or more with a first control command value when a power outage detection unit 230 detects a power outage, and turns on the light source 410 for a second time with a second control command value when the inspection detection unit 260 detects an inspection signal, and the second control command value is set to a value different from the first control command value, and the second time is set to be longer or shorter than the value obtained by dividing the first control command value by the second control command value and multiplying the first time.SELECTED DRAWING: Figure 4

Description

[Background technology]

[0001] During inspection, there is an emergency lighting device that lights up the light source using a storage battery for a predetermined time and detects the voltage of the storage battery at that time.The detected voltage of the storage battery is then compared with a threshold value to determine the state, and this determination result notifies the user of any abnormalities in the storage battery (see Patent Document 1). [Prior art documents] [Patent documents]

[0002] [Patent Document 1] Japanese Patent Application Publication No. 2018-139222 Summary of the Invention [Problem to be solved by the invention]

[0003] However, in conventional inspections of emergency power supplies for emergency lighting devices, the inspection is conducted to determine whether the lighting duration is sufficient at the same brightness as required by law in an emergency. Therefore, when inspecting the emergency power supply for the target emergency lighting device, the inspector is inconvenienced by the unwanted light even in environments where the device is not normally lit or where lighting at a different brightness is desired. Furthermore, inspectors cannot confirm that the emergency power supply is normal until the lighting duration required by law has elapsed, which makes the inspection of the emergency power supply time-consuming. [Means for solving the problem]

[0004] The emergency lighting device of the present disclosure comprises a light source, an emergency power supply, a power outage detection unit that detects a power outage state in which the supply of the external power supply has been cut off based on the voltage value of an external power supply supplied from outside, a drive circuit unit that turns on the light source using the power of the emergency power supply, an inspection detection unit that detects an inspection signal for inspecting the emergency power supply, and a deterioration detection unit that detects the state of the emergency power supply, wherein when the power outage detection unit detects a power outage state, the drive circuit unit controls the light source by an emergency lighting operation that turns on the light source with a first control command value and operates it for a first time period or more as specified by law, and when the inspection detection unit detects the inspection signal, the drive circuit unit controls the light source by an inspection operation that turns on the light source with a second control command value, and the deterioration detection unit determines the state of the emergency power supply at least when a second time period has elapsed during the inspection operation, the second control command value being set to a value different from the first control command value, and the second time period being set to be longer or shorter than a value obtained by dividing the first control command value by the second control command value and multiplying the first time period. [Effects of the Invention]

[0005] The emergency lighting device disclosed herein eliminates or reduces the inconvenience that occurs when inspecting an emergency power source due to the lighting state of the light source being different from that during normal use, and also reduces the inspection time, thereby reducing the workload of the inspector and improving work efficiency. [Brief explanation of the drawings]

[0006] [Figure 1] 1 is a diagram showing an example of an emergency lighting device according to a first embodiment. [Figure 2] FIG. 2 is an exploded perspective view of the emergency lighting device shown in FIG. [Figure 3] 3 is a block diagram of a circuit section built into the emergency lighting device shown in FIG. 2. FIG. [Figure 4] 4 is a flowchart showing an operation flow of the emergency lighting device in the first embodiment. [Figure 5] 10 is a diagram showing the characteristics of a light source 410 and an emergency power supply 300. FIG. [Figure 6] 10 is a diagram showing the characteristics of a light source 410 and an emergency power supply 300. FIG. [Figure 7] 10 is a diagram showing an example of the relationship between the dischargeable time of the emergency power supply 300 and the output of the light source 410. FIG. [Figure 8] FIG. 10 is a diagram showing an example of an emergency lighting device in a second embodiment. [Figure 9] FIG. 9 is an exploded perspective view of the emergency lighting device shown in FIG. 8. [Figure 10] 10 is a block diagram of a circuit section built into the emergency lighting device shown in FIG. 9. FIG. [Figure 11] 10 is a flowchart showing the operation flow of the emergency lighting device in the second embodiment. [Figure 12] FIG. 10 is a diagram showing an example of an emergency lighting device in another mode of the second embodiment. [Figure 13] FIG. 13 is an exploded perspective view of the emergency lighting device shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0007] Embodiment 1 FIG. 1 shows an emergency lighting device 1000 showing an example of the form of a fixture of this embodiment, and FIG. 2 is an exploded perspective view of the emergency lighting device 1000 shown in FIG. The emergency lighting device 1000 comprises a fixture body 100, an emergency lighting device 200, an emergency power supply 300 and a light source unit 400 built into the fixture body 100, and a decorative cover 500 attached to the fixture body 100. The fixture body 100 includes a cylindrical body case 110 having one open side and a bottom, and an attachment spring 120 attached to the side of the body case 110 and engaging with a ceiling embedding hole. The light source unit 400 has a light source 410 such as an optical control component and a light emitting diode. In this embodiment, a case where a light emitting diode is used as the light source 410 will be described, but the present invention is not limited to this, and other light sources such as organic electroluminescence may also be used. The decorative cover 500 has a window formed therein in which the light source unit 400 and the like are arranged, and is attached to the main body case 110 so as to close the opening. Although not shown in Figures 1 and 2, a power terminal block to which an external electric wire for supplying external power to the emergency lighting device 1000 is attached is built into the fixture body 100, and this power terminal block is connected to the emergency lighting device 200 by internal wiring.

[0008] FIG. 3 is a block diagram of a circuit section built into the emergency lighting device 200 shown in FIG. Emergency lighting device 200 includes a charging circuit unit 210 that receives input of an external power source such as a commercial power source (hereinafter referred to as normal power source 10) to charge emergency power source 300, a power outage detection unit 230 connected to charging circuit unit 210, a control unit 240 connected to charging circuit unit 210 and power outage detection unit 230, a drive circuit unit 220 that receives power from emergency power source 300, operates based on a control signal from control unit 240, and supplies power to light source 410, a deterioration detection unit 250 provided between emergency power source 300 and control unit 240, and an inspection detection unit 260 and a display monitor 270 connected to control unit 240. Emergency power source 300 is a component that deteriorates with use and requires replacement, so inspection, as described below, is required.

[0009] When the utility power supply 10 is being supplied, the charging circuit unit 210 converts power from the utility power supply 10 and charges the emergency power supply 300 based on a charge control signal from the control unit 240 .

[0010] The charging circuit unit 210 may be configured as a switching circuit such as a flyback circuit, for example. A charging current for the emergency power supply 300 is generated from the output voltage of the flyback circuit.

[0011] Based on a lighting control signal from the control unit 240, the drive circuit unit 220 converts power from the emergency power supply 300 and lights up the light source 410. The drive circuit unit 220 is configured, for example, as a switching circuit such as a step-up chopper circuit. When the step-up chopper circuit is used to light the light source 410, the voltage obtained from the emergency power supply 300 is boosted and converted, and then supplied to the light source 410. Note that the light source 410 may be configured with one or more light-emitting diodes, and the output voltage of the emergency power supply 300 may vary, so it is necessary to select a voltage-step-down type circuit configuration such as a step-down chopper circuit depending on the specifications of the emergency power supply 300 and the light source 410.

[0012] The power outage detection unit 230 detects whether or not the utility power supply 10 is being supplied, that is, whether or not there is a power outage, via the charging circuit unit 210, and outputs the detection result to the control unit 240. Note that the determination of whether or not there is a power outage may be made not only when the voltage of the utility power supply 10 is 0 V, but also when it is equal to or lower than a predetermined voltage (for example, a voltage value that is 40% or 60% of the rated voltage).

[0013] The control unit 240 uses a microcomputer or the like, and controls the operations of the charging circuit unit 210 and the driving circuit unit 220.

[0014] As described above, the drive circuit unit 220 operates based on the control signal output by the control unit 240, and the control unit 240 can control the power and current of the light source 410. The power and current can be selected depending on the specifications of the lighting fixture in which the emergency lighting device is used.

[0015] The inspection detection unit 260 includes an inspection switch 261 and an infrared signal receiving unit 262 .

[0016] When the inspection switch 261 is operated, it outputs an inspection signal to the control unit 240 to instruct the control unit 240 to inspect the emergency power supply 300 .

[0017] The infrared signal receiving unit 262 receives an infrared signal transmitted from an infrared remote controller, and when the control unit 240 determines that the received infrared signal indicates that the emergency power supply 300 should be inspected, the control unit 240 inspects the emergency power supply 300.

[0018] The deterioration detection unit 250 detects deterioration of the emergency power supply 300. When the emergency power supply 300 is operated in an inspection mode operation described later, the deterioration detection unit 250 measures the voltage, charge amount, etc. of the emergency power supply 300, and the control unit 240 makes a judgment based on the information obtained from the deterioration detection unit 250.

[0019] Display monitor 270 is configured with a light emitting diode (LED), a liquid crystal monitor, or the like, and notifies replacement of emergency power supply 300 based on a monitor signal output from control unit 240. Display monitor 270 can also display the status of light source 410 and emergency power supply 300. In this embodiment, a case where a light emitting diode is used for display monitor 270 will be described.

[0020] Although not shown, a control power supply for operating the control unit 240 is generated by the charging circuit unit 210 and the emergency power supply 300.

[0021] FIG. 4 is a flowchart showing the operation flow of the emergency power supply 300 in this embodiment. <Step S1> A utility power supply 10 is input.

[0022] <Step S2> The charging circuit section 210 operates to control charging of the power from the normal power supply 10, and the emergency power supply 300 is charged.

[0023] <Step S3> The power failure detection unit 230 detects whether the utility power supply 10 is being supplied or cut off, and the control unit 240 makes a decision.

[0024] <Steps S4 and S5> When the control unit 240 determines in step S3 that the utility power supply 10 has been cut off and that a power outage has occurred, the control unit 240 sets a first output command value as an emergency lighting operation and starts control of the drive circuit unit 220. Note that the first output command value is, for example, a value that satisfies a floor illuminance of 1 lx or more as stipulated in the Building Standards Act and related laws and regulations for emergency lighting fixtures.

[0025] <Step S6> The control unit 240 controls the drive circuit unit 220, and power is supplied from the emergency power supply 300 to the light source 410 via the drive circuit unit 220. The light source 410 outputs light from the lighting fixture based on the first output command value, allowing the user to obtain light. The normal power supply 10 is again checked, and if the power outage state continues, the operations of steps S4, S5, and S6 are continued.

[0026] <Step S7> When it is determined in step S3 that the normal power supply 10 is energized, the control unit 240 determines the signal of the inspection switch 261 (hereinafter also referred to as the inspection signal) as a signal to transition to the inspection mode operation. If there is no signal from the inspection switch 261, the control unit 240 continues to control the charging of the emergency power supply 300. Note that the inspection switch 261 may be a signal output as a result of operating a mechanical switch, an infrared sensor, a wireless device such as radio waves, or a wired device using a communication line, or may further be a signal automatically issued by the control unit 240 by timing a period set to six months or less, which is the period for periodic inspections stipulated in the Building Standards Act and related laws and regulations, the Fire Service Act and related laws and regulations, for example.

[0027] <Steps S8 and S9> When the control unit 240 determines that there is an inspection signal, the control unit 240 starts operation in inspection mode. The control unit 240 stops the operation of the charging circuit unit 210. This stops charging from the normal power supply 10 to the emergency power supply 300. The control unit 240 sets a second output command value and starts controlling the drive circuit unit 220.

[0028] Control unit 240 controls drive circuit unit 220, and power is supplied from emergency power supply 300 to light source 410 via drive circuit unit 220. Light source 410 outputs light from the lighting fixture based on the second output command value.

[0029] <Step S11> By supplying power to the light source 410, the charge of the emergency power supply 300 is consumed based on the second output command value. The control unit 240 compares the state of the emergency power supply 300 detected by the deterioration detection unit 250 with the operating time of the light source 410 to determine deterioration of the emergency power supply 300. If the determination shows that the emergency power supply 300 is normal, the control unit 240 operates the charging circuit unit 210 to start charging control of the emergency power supply 300 from the normal power supply 10. Note that the determination that emergency power supply 300 is normal is based on the emergency lighting operation, and therefore, when drive circuit unit 220 is operated with the first output command value and the voltage of emergency power supply 300 is equal to or higher than specified voltage V when specified time T is reached, emergency power supply 300 is in a state where it can light light source 410. Specified voltage V can be said to be a voltage that determines whether or not the voltage of emergency power supply 300 can be converted by drive circuit unit 220 into a voltage that lights light source 410. Furthermore, specified time T is, for example, 30 to 60 minutes as specified in the Building Standards Act and related laws and regulations, or 20 to 60 minutes as specified in the Fire Service Act and related laws and regulations.

[0030] <Step S12> If the determination in step S11 indicates that the emergency power supply 300 has deteriorated, the control unit 240 operates the display monitor 270 to notify the user that the emergency power supply 300 needs to be replaced, and urges the user to replace it. The control unit 240 also operates the charging circuit unit 210 to start charging the emergency power supply 300. Note that, in the present embodiment, the case where the inspection result for the deterioration of the emergency power supply 300 is displayed on the display monitor 270 has been described, but the notification may be made by voice or the like, or may be displayed on the monitor of an external device via an external communication unit. Furthermore, the notification may be made not only when the emergency power supply 300 has deteriorated, but also when the inspection result is normal.

[0031] In this way, the emergency lighting device 1000 can operate to provide light even during a power outage by using the emergency power supply 300 as emergency lighting, and can also perform an inspection of the emergency power supply 300 to confirm that the emergency power supply 300 will operate even during an emergency.

[0032] Next, the relationship between the inspection operation and the emergency lighting operation will be described. As mentioned above, the inspection operation is performed to confirm whether the emergency power supply 300 is normal so that the emergency lighting operation will be satisfactory in the event of an emergency. Whether the emergency power supply 300 is normal can be determined by whether the voltage of the emergency power supply 300 is equal to or greater than the specified voltage V when the drive circuit unit 220 is operated at the first output command value for the specified time T. Therefore, this can be determined by setting the second output command value during the inspection operation to be equal to the first output command value for the emergency lighting operation, operating the system for the specified time T, and confirming that the voltage of the emergency power supply 300 is equal to or greater than the specified voltage V.

[0033] However, in the above inspection operation, unnecessary light is output when there is no emergency, so the viewer is inconvenienced by the unnecessary light that is not actually turned on. Therefore, since it is necessary to shorten the time required for inspection as much as possible, an experiment was conducted focusing on the power and current supplied to the light source 410, the amount of light emitted at that time, and the time during which the emergency power supply 300 can operate normally.

[0034] 5 is a table showing the relationship between the time during which emergency power supply 300 can operate normally, that is, the time until the specified voltage V is reached, when an arbitrary light source 410 is operated by an arbitrary emergency power supply 300 using power, current, and brightness (also called luminous flux) as parameters. As an operating condition, the specified brightness is set to when drive circuit unit 220 operates reference light source 410 with a first output command value, and the amount of power supplied to light source 410 is changed under six operating conditions 1 to 6, and the relationship between the time until emergency power supply 300 reaches the specified voltage V is summarized.

[0035] As shown in FIG. 5, increasing the power of the light source 410 shortens the time it takes for the emergency power supply 300 to reach the specified voltage V, and conversely, decreasing the power of the light source 410 lengthens the time it takes for the emergency power supply 300 to reach the specified voltage V.

[0036] Next, Fig. 6 is a table showing the ratios of each operating condition 1 to 6, based on the characteristics of the light source 410 when the drive circuit unit 220 operates with the first output command value, from the relationship obtained in Fig. 5. The characteristics of the light source 410 are shown as the reciprocal of each ratio, and the time it takes for the emergency power supply 300 to reach the specified voltage V is shown as each ratio. A graph based on this result is shown in Fig. 7, and the relationship between the dischargeable time of the emergency power supply 300 and the output of the light source 410 is shown as a curve.

[0037] 6 and 7, the time it takes for emergency power supply 300 to reach specified voltage V does not match the reciprocal ratio of the power, current, and luminous flux of light source 410. When the characteristics of light source 410 increase, the time it takes for emergency power supply 300 to reach specified voltage V increases by a larger amount than the increase in the characteristics of light source 410, and when the characteristics of light source 410 decrease, the decrease in emergency power supply 300 decreases by a smaller amount than the decrease in the characteristics of light source 410. In other words, the second time period for inspecting emergency power supply 300 can be set to be longer or shorter than the value obtained by dividing the first control command value by the second control command value and multiplying the first time period by the value.

[0038] This is because the emergency power supply 300 has a characteristic that the greater the discharge current, the lower the discharge efficiency, and the smaller the discharge current, the higher the discharge efficiency, and this tendency is influenced by this.

[0039] Therefore, as can be seen from this characteristic, when the drive circuit unit 220 operates with the second output command value different from the first output command value, it is possible to determine whether the emergency power supply 300 is normal during the inspection operation if the voltage of the emergency power supply 300 is equal to or higher than the specified voltage V, with the specified time T being specified time T1. This specified time T1 changes depending on the second output command value, and should be set to a value greater than the increase amount relative to the first output command value.

[0040] In this way, by increasing the second output command value more than the first output command value and setting the specified time T to the specified time T1, it is possible to perform a highly accurate inspection while shortening the inspection operation time, which can contribute to eliminating inconvenience to the examiner.

[0041] Furthermore, the second control command value may be increased within the range of the absolute maximum rated values ​​of each configuration and each component, such as the maximum output value that emergency lighting device 200 outputs to light source 410, the rated current and rated temperature of light source 410, and the maximum current value that can be output by emergency power supply 300. In this way, by increasing the second control command value, inspection of emergency power supply 300 can be completed in a short time.

[0042] In this way, a method has been found in which, when inspecting the emergency power supply 300, the light source 410 is turned on at a brightness or power level different from that used in an emergency to determine whether there is an abnormality in the emergency power supply 300.

[0043] Embodiment 2 This embodiment relates to an emergency lighting device 1100 that turns on a light source 410 when a service power source 10 is supplied. In this embodiment, the same configurations and functions as those in the first embodiment are denoted by the same reference numerals, and the description thereof may be omitted.

[0044] Fig. 8 is a perspective view of an emergency lighting device 1100 according to this embodiment, and Fig. 9 is an exploded perspective view of the emergency lighting device 1100 shown in Fig. 8. Figs. 8 and 9 show a so-called emergency light as an example of the emergency lighting device 1100 according to this embodiment. The emergency lighting device 1100 includes a fixture body 100, a light source 410 attached to the fixture body 100, and a display panel 600. The fixture main body 100 includes a box-shaped main body case 110 with one side open, a power terminal block 130, an emergency lighting device 200, and an emergency power supply 300, all of which are built into the main body case 110. The power terminal block 130 is connected to an internal wiring that electrically connects a power line drawn from the outside into the main body case 110 to the emergency lighting device 200. The light source 410 and the display panel 600 are attached to the fixture body 100, thereby closing the opening of the main body case 110. The display panel 600 has a light guide plate and a pictogram showing a symbol such as an emergency exit on the front surface of the light guide plate. The light emitted by the light source 410 passes through the light guide plate of the display panel 600 and functions as a backlight for the pictogram.

[0045] FIG. 10 is a block diagram of the emergency lighting device 200 shown in FIG. The difference from the emergency lighting device 200 shown in Figure 3 of embodiment 1 is that the driving circuit unit 220 is connected to the charging circuit unit 210, and the voltage obtained from the charging circuit unit 210 can be supplied to the light source 410 via the driving circuit unit 220. Therefore, when the utility power supply 10 is energized, the drive circuit section 220 converts the voltage obtained from the charging circuit section 210 into a voltage, which is supplied to the light source 410 for lighting, enabling utility lighting. In addition, the average brightness of the display surface of a pictogram for emergency exit guide lights, as stipulated in the Fire Service Act and related laws and regulations, is, for example, Class A emergency exit guide lights (the vertical dimension of the display surface is 0.4 m or more), between 350 cd and 800 cd when lit normally, and between 100 cd and 300 cd when lit in an emergency, so the brightness differs between normal and emergency lighting.

[0046] Fig. 11 is a flowchart showing the operation flow of the emergency power supply 300 in this embodiment. Compared to the flowchart shown in Fig. 4 of the first embodiment, the processes of <Step S21>, <Step S22>, and <Step S23> are added between <Step S2> and <Step S3>. <Steps S21, 22, 23> The normal lighting operation is started together with the charging control of the emergency power supply 300. As the normal lighting operation, the control unit 240 sets a third control command value and starts controlling the drive circuit unit 220.

[0047] Control unit 240 controls drive circuit unit 220, and power is supplied from utility power supply 10 to light source 410 via charging circuit unit 210 and drive circuit unit 220. Light source 410 outputs light from the lighting fixture based on the third output command value.

[0048] In this way, even when the utility power supply 10 is energized, the light source 410 lights up in the same way as general lighting, and the viewer can also obtain light.

[0049] Next, we will explain the relationship between normal lighting operation, inspection operation, and emergency lighting operation. As mentioned above, normal lighting operation is an operation to obtain general light, and emergency lighting operation is an operation to obtain light in the event of an emergency. For this reason, the inspection operation must inspect the emergency power supply 300 to satisfy the emergency lighting operation, as in the previous examples shown in Figures 2 and 3.

[0050] In the emergency lighting mode, light is output from the light source 410 based on the first output command value, and in the normal lighting mode, light is output from the light source 410 based on the third output command value. Therefore, the light output can be changed between the emergency lighting mode and the normal lighting mode according to the specifications of the lighting fixture, allowing the viewer to obtain light that suits each usage situation.

[0051] Therefore, when the light received by the viewer during normal lighting operation is different from that during emergency lighting operation, when the normal lighting operation is switched to inspection operation, the light output of the light source 410 is changed from the third output command value to the second output command value to perform the inspection operation.

[0052] Even in such a case, it is desirable to check whether emergency power supply 300 is normal by changing the second output command value to the third output command value without changing the optical output of light source 410. Therefore, similar to the inspection operation described above, in accordance with the characteristics of Fig. 5, whether emergency power supply 300 is normal during inspection operation can be determined by setting specified time T to specified time T1 and checking whether the voltage of emergency power supply 300 is equal to or higher than specified voltage V when drive circuit unit 220 operates with the second output command value different from the first output command value.

[0053] This specified time T1 varies depending on the second output command value relative to the first output command value, i.e., the third output command value. When the first output command value is large, the third output command value may be set to a value larger than the increase amount relative to the first output command value, and when the first output command value is small, the third output command value may be set to a value smaller than the decrease amount relative to the first output command value.

[0054] In this way, by setting the second output command value to the third output command value, the light output of the light source 410 does not change, and by setting the specified time T to specified time T1 taking into account the amount of increase or decrease in the second output command value relative to the first output command value, the examinee can maintain a comfortable lighting state while performing highly accurate inspection.

[0055] The emergency lighting device 1100 in which the light source 410 is turned on when the normal power source 10 is supplied may be an emergency lighting device 1100 as shown in Figures 12 and 13, i.e., a dual-purpose emergency lighting fixture that has both a normal lighting function and an emergency lighting function. The structures and functions of the emergency lighting device 1100 shown in FIGS. 12 and 13 are denoted by the same reference numerals and will not be described further.

[0056] The emergency lighting device 1100 includes a fixture body 100, a light source unit 400 attached to the fixture body 100, and a screw 150 for attaching the light source unit 400 to the fixture body 100. The fixture body 100 includes an elongated main body 140, a power terminal block 130 attached to the main body 140, an emergency lighting device 200, and an emergency power supply 300. The light source unit 400 includes a light source 410 such as a light emitting diode.

[0057] This emergency lighting device 1100 is often installed alongside a plurality of general lighting fixtures on the same floor, and when the normal power source 10 is supplied, the light source 410 is turned on in the same lighting state as the general lighting fixtures installed alongside the emergency lighting device 1100. Therefore, when the emergency power supply 300 is inspected, it can be turned on in the same lighting state as other general lighting, so that the inspection of the emergency power supply 300 can be carried out without the viewer being aware of it. Therefore, inspection of the emergency power supply 300 can be carried out without causing the patient any inconvenience, which can promote inspection of the emergency power supply 300 of the emergency lighting device 1100 and contribute to reducing problems such as the emergency lighting device 1100 not turning on due to deterioration of the emergency power supply 300 in an emergency such as a disaster.

[0058] Various aspects of the present disclosure are summarized below as appendices. (Appendix 1) A light source and Emergency power supply and a power outage detection unit that detects a power outage state in which the supply of the external power source is interrupted based on a voltage value of the external power source; a drive circuit unit that turns on the light source using power from the emergency power supply; an inspection detection unit that detects an inspection signal for inspecting the emergency power supply; a deterioration detection unit that detects a state of the emergency power supply, The drive circuit unit controls the light source by an emergency lighting operation in which the light source is turned on with a first control command value and operated for a first time period or more specified by law when the power outage detection unit detects a power outage state, and controls the light source by an inspection operation in which the light source is turned on with a second control command value when the inspection detection unit detects the inspection signal, the deterioration detection unit determines a state of the emergency power supply when a second time period has elapsed during at least the inspection operation, the second control command value is set to a value different from the first control command value; An emergency lighting device, wherein the second time period is set to be longer or shorter than a value obtained by multiplying the first time period by a value obtained by dividing the first control command value by the second control command value. (Appendix 2) the second control command value is set to be larger than the first control command value, 2. The emergency lighting device according to claim 1, wherein the second time is set to a value smaller than a value obtained by dividing the first control command value by the second control command value and multiplying the first time. (Appendix 3) the second control command value is set to be smaller than the first control command value, 2. The emergency lighting device according to claim 1, wherein the second time period is set to a value greater than a value obtained by dividing the first control command value by the second control command value and multiplying the first time period. (Appendix 4) 3. The emergency lighting device according to claim 1, wherein the second control command value is set within an absolute maximum rating value that can be outputted from the emergency power supply. (Appendix 5) the drive circuit unit controls the light source in a normal lighting operation in which the light source is turned on using power obtained from the external power source and a third control command value when the external power source is supplied, 5. The emergency lighting device according to claim 1, wherein the second control command value is set to a value substantially equal to a third control command value. [Explanation of symbols]

[0059] 10 normal power supply, 100 fixture body, 110 body case, 120 mounting spring, 130 power terminal block, 140 body section, 150 screws, 200 emergency lighting device, 210 charging circuit section, 220 drive circuit section, 230 power outage detection section, 240 control section, 250 deterioration detection section, 260 inspection detection section, 261 inspection switch, 262 infrared signal receiving section, 270 display monitor, 300 emergency power supply, 400 light source unit, 410 light source, 500 decorative cover, 600 display panel, 1000 emergency lighting device, 1100 emergency lighting device.

Claims

1. A light source and Emergency power supply and a power outage detection unit that detects a power outage state in which the supply of the external power source is interrupted based on a voltage value of the external power source; a drive circuit unit that turns on the light source using power from the emergency power supply; a power outage detection unit that detects an inspection signal for inspecting the emergency power supply; a deterioration detection unit that detects a state of the emergency power supply, The drive circuit unit controls the light source by an emergency lighting operation in which the light source is turned on with a first control command value and operated for a first time period or more specified by law when the power outage detection unit detects a power outage state, and controls the light source by an inspection operation in which the light source is turned on with a second control command value when the power outage detection unit detects the inspection signal, the deterioration detection unit determines a state of the emergency power supply at least when a second time period has elapsed during the inspection operation, the second control command value is set to a value different from the first control command value; An emergency lighting device, wherein the second time period is set to be longer or shorter than a value obtained by multiplying the first time period by a value obtained by dividing the first control command value by the second control command value.

2. the second control command value is set to be greater than the first control command value, 2. The emergency lighting device according to claim 1, wherein the second time is set to a value smaller than a value obtained by dividing the first control command value by the second control command value and multiplying the first time by the value.

3. the second control command value is set to be smaller than the first control command value, 2. The emergency lighting device according to claim 1, wherein the second time period is set to a value greater than a value obtained by dividing the first control command value by the second control command value and multiplying the first time period by the value obtained by dividing the first control command value by the second control command value.

4. 3. The emergency lighting device according to claim 1, wherein the second control command value is set within an absolute maximum rated value that can be outputted from the emergency power supply.

5. the drive circuit unit controls the light source in a normal lighting operation in which the light source is turned on using power obtained from the external power source and a third control command value when the external power source is supplied, The emergency lighting device according to any one of claims 1 to 3, wherein the second control command value is set to a value substantially equal to a third control command value.

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