Disaster prevention lighting fixture

Abstract

The present disclosure relates to a disaster prevention lighting device, and aims to provide an emergency light device that can determine the life of a battery. [Solution] The disaster prevention lighting device disclosed herein comprises an LED light source, a lighting circuit that lights the LED light source, a battery that supplies power to the lighting circuit, a charging circuit that receives power from a commercial power source and charges the battery, a dummy load, and a control unit that supplies power from the battery to the dummy load for a predetermined inspection time, determines whether the voltage of the battery is higher than a predetermined threshold voltage, and outputs the determination result.

Description

Technical Field

[0001] The present disclosure relates to a disaster prevention lighting fixture.

Background Art

[0002] Patent Document 1 discloses an induction lamp device. In this induction lamp device, the emergency operation can be remotely confirmed by transmitting an operation confirmation signal for instructing the confirmation of the emergency operation from a remote control transmitter. When the microcomputer receives the operation confirmation signal by the remote control receiver, the induction lamp lighting circuit is driven by a battery to light the first light source for a T1 period. Next, the microcomputer drives the blinking circuit by a battery to blink the second light source for a T2 period. An operator can confirm the first light source and the second light source at different times.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the induction lamp device of Patent Document 1, while the blinking operation can be confirmed, the battery life cannot be determined.

[0005] The present disclosure has been made to solve the above problems, and an object thereof is to obtain a disaster prevention lighting fixture capable of determining the battery life.

Means for Solving the Problems

[0006] The disaster prevention lighting fixture according to the present disclosure includes an LED light source, a lighting circuit to which the LED light source is connected on the output side and which lights the LED light source or turned off circuit, and the point extinguished circuit, and the point extinguishedA battery that supplies power to the circuit, a charging circuit that receives power supply from a commercial power source and charges the battery, and the point extinguished A dummy load connected to the output side of the circuit, and power is supplied from the battery to the dummy load for a predetermined inspection time, and the voltage of the battery average value or effective value is determined whether it is higher than a predetermined threshold voltage, and a control unit that outputs a determination result.

Advantages of the Invention

[0007] In the disaster prevention lighting fixture according to the present disclosure, it is possible to determine whether the voltage of the battery when power is supplied from the battery to the dummy load for only the inspection time is higher than the threshold voltage. Therefore, the life of the battery can be determined.

Brief Description of the Drawings

[0008]

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Mode for Carrying Out the Invention

[0009] The disaster prevention lighting fixture according to the embodiment of the present disclosure will be described with reference to the drawings. The same or corresponding components may be denoted by the same reference numerals, and repeated description may be omitted.

[0010] Embodiment 1. FIG. 1 is a perspective view of an induction lamp device 120 according to Embodiment 1. FIG. 2 is an exploded perspective view of the induction lamp device 120 according to Embodiment 1. The induction lamp device 120 is a voice - added flashing type induction lamp having a speaker 5 that emits a voice prompting evacuation in case of an abnormality and a second light source 4 that flashes in case of an abnormality. Here, in case of an abnormality, for example, it is a state in which the induction lamp device 120 has received a fire signal for notifying a fire. On the contrary, in the normal state, it indicates a state in which the induction lamp device 120 has not received a fire signal.

[0011] The induction lamp device 120 includes a main body 1, a display panel 2, a cover for the second light source 3, a second light source 4, a main body cover 7, an operation confirmation switch 10, a first light source 12, and charge monitors 16a and 16b. In the main body 1, a lighting circuit 11a, a battery 13a, a speaker 5, a battery 13b, a shared circuit 11b, a flashing circuit 14, a voice circuit 15, and a remote control light receiving unit 9 are housed.

[0012] The main body cover 7 covers the main body 1. A speaker hole 7a is provided in the main body cover 7 at a position facing the speaker 5. Also, an opening for exposing the display panel 2 is provided in the main body cover 7. The operation confirmation switch 10, the charge monitor 16a, and the remote control light receiving unit 9 are provided on the lower surface of the main body 1.

[0013] The guidance display is provided on the display panel 2. The display panel 2 indicates the position or evacuation direction of the emergency exit. Above the display panel 2, a first light source 12 is provided. The first light source 12 is, for example, an LED light source. The first light source 12 illuminates the display panel 2 during normal use and during an emergency. Here, normal use indicates a state where there is power supply from the commercial power supply 50. An emergency indicates a power outage state where there is no supply from the commercial power supply 50.

[0014] A second light source 4 is provided on the lower surface of the main body 1. The second light source 4 is covered by a second light source cover 3. The second light source 4 is a lamp that generates a large amount of light in a short time. The second light source 4 is a module composed of an LED light source. A charge monitor 16b is provided on the side surface of the second light source 4.

[0015] FIG. 3 is a circuit block diagram of the guidance lamp device 120 according to Embodiment 1. The lighting circuit 11a has a charging circuit 111a and a control unit 112a. Also, a commercial power supply 50 and a battery 13a are connected to the lighting circuit 11a. The commercial power supply 50 is, for example, an AC power supply. The charging circuit 111a is supplied with power from the commercial power supply 50 during normal use and charges the battery 13a.

[0016] The first light source 12 is supplied with power from the commercial power supply 50 via the lighting circuit 11a and lights up during normal use. Also, the first light source 12 is supplied with power from the battery 13a and lights up during an emergency.

[0017] The control unit 112a controls the charging circuit 111a. The control unit 112a includes, for example, a microcomputer. The control unit 112a is supplied with power from the commercial power supply 50 and operates during normal use. Also, the control unit 112a is supplied with power from the battery 13a and operates during an emergency. Thus, the lighting circuit 11a receives power supply from the commercial power supply 50 and operates during normal use, and receives power supply from the battery 13a and operates during an emergency.

[0018] The shared circuit 11b includes a charging circuit 111b, a control unit 112b, and a boost circuit 114b. Also, a commercial power supply 50 and a battery 13b are connected to the shared circuit 11b. The charging circuit 111b is supplied with power from the commercial power supply 50 during normal use to charge the battery 13b. The battery 13b is, for example, a storage battery.

[0019] Also, a blinking circuit 14 and an audio circuit 15 are connected to the shared circuit 11b. The blinking circuit 14 blinks the second light source 4. The audio circuit 15 is connected to a speaker 5. The audio circuit 15 outputs a voice prompting evacuation from the speaker 5. This voice is also called a guiding voice. The audio circuit 15 and the speaker 5 constitute an audio output unit 25.

[0020] The battery 13b supplies power to the blinking circuit 14 and the boost circuit 114b during an abnormality. The blinking circuit 14 boosts the voltage of the battery 13b with a boost circuit 14b inside it. Thereby, the blinking circuit 14 blinks the second light source 4. Also, the boost circuit 114b generates an operating power supply for the audio circuit 15 during an abnormality. Thereby, the audio output unit 25 receives power supply from the battery 13b via the boost circuit 114b and emits a voice prompting evacuation. Thus, the blinking circuit 14 and the audio circuit 15 are supplied with power from the battery 13b during an abnormality. Here, an abnormality refers to a state in which a fire detection signal is received from a fire detection unit 201 described later.

[0021] The control unit 112b controls the charging circuit 111b, the boost circuit 114b, the blinking circuit 14, the boost circuit 14b, and the audio circuit 15. The control unit 112b includes, for example, a microcomputer. The control unit 112b is supplied with power from the commercial power supply 50 and operates during normal use. Also, the control unit 112b is supplied with power from the battery 13b and operates during an emergency.

[0022] The control unit 112b is connected to the fire alarm unit 200. The fire alarm unit 200 includes a fire detection unit 201, a fire alarm device 202, and an emergency exit light signal device 203. The fire detection unit 201 detects a fire. The fire alarm device 202 is an automatic fire alarm device. When the emergency exit light signal device 203 receives a fire detection signal from the fire detection unit 201 via the fire alarm device 202, it transmits a fire signal for notifying the control units 112a and 112b of the fire.

[0023] The control unit 112b operates the flashing circuit 14 and the voice circuit 15 in response to the fire signal. As a result, the second light source 4 flashes and emits light, for example, at 2 Hz, and the speaker 5 emits a guiding sound.

[0024] In this way, the shared circuit 11b operates by receiving power supply from the commercial power supply 50 during normal times and operates by receiving power supply from the battery 13b during abnormal times. By sharing the battery 13b between the flashing circuit 14 and the voice circuit 15, the number of components of the emergency exit light device 120 can be reduced. Further, by sharing the shared circuit 11b between the flashing circuit 14 and the voice circuit 15, the number of components of the emergency exit light device 120 can be further reduced.

[0025] The charging monitor 16a is connected to the lighting circuit 11a. The charging monitor 16a indicates the charging state of the battery 13a. The control unit 112a controls the lighting state of the charging monitor 16a. When the battery 13a is being charged, the green lamp of the charging monitor 16a lights up. When the battery 13a reaches the end of its life, the lamp of the charging monitor 16a flashes.

[0026] The charging monitor 16b is connected to the shared circuit 11b. The charging monitor 16b indicates the charging state of the battery 13b. The control unit 112b controls the lighting state of the charging monitor 16b. When the battery 13b is being charged, the green lamp of the charging monitor 16b lights up.

[0027] The remote control light receiving unit 9 is connected to both the lighting circuit 11a and the shared circuit 11b. The remote control light receiving unit 9 receives a signal from a remote control 90 described later. The control units 112a and 112b operate according to the signal from the remote control 90, respectively.

[0028] The fire alarm unit 200 and the control unit 112b are connected via the operation confirmation switch 10. The operation confirmation switch 10 can be turned on and off by pressing it. Also, the operation confirmation switch 10 may be turned on and off by the remote controller 90. By turning on or off the operation confirmation switch 10, a pseudo fire signal can be input to the control unit 112b. Thereby, the operations of the blinking circuit 14 and the voice output unit 25 can be confirmed.

[0029] FIG. 4 is a diagram for explaining the first pseudo load 34 and the second pseudo load 35. In the operation confirmation of the second light source 4 and the speaker 5, when blinking and voice output are performed in the same manner as during an actual fire alarm, the blinking with a flash may be conspicuous and the voice at a high volume may be felt as noisy. Therefore, it may be difficult to perform the operation confirmation, especially in facilities such as those operating 24 hours a day.

[0030] In contrast, in the present embodiment, the first pseudo load 34 is connected in parallel with the second light source 4. Also, the second pseudo load 35 is connected in parallel with the speaker 5. By connecting the first pseudo load 34 to the second light source 4, while consuming power equivalent to that during actual operation in the battery 13b, the light amount of the second light source 4 during operation confirmation can be reduced. By consuming power equivalent to that during actual operation, the life and deterioration of the battery 13b can be accurately confirmed. That is, it is possible to determine whether the operation for a specified time is possible during actual operation. Also, by reducing the light amount of the second light source 4, it is possible to blink inconspicuously and confirm the presence or absence of an abnormality in the blinking light source.

[0031] Similarly, by connecting the second pseudo load 35 to the speaker 5, while consuming power equivalent to that during actual operation in the battery 13b, the volume during operation confirmation can be reduced. By consuming power equivalent to that during actual operation, the life and deterioration of the battery 13b can be accurately confirmed. Also, by reducing the volume of the speaker 5, it is possible to confirm the presence or absence of an abnormality in the voice output unit 25 so as not to cause trouble to the surroundings.

[0032] The first suspected load 34 and the second suspected load 35 are, for example, resistors. However, the first suspected load 34 and the second suspected load 35 are not limited to this, and they only need to be supplied with current to consume power.

[0033] Here, when the second light source 4 is a xenon lamp, in order to discharge the xenon lamp, it is generally necessary to generate a high voltage of about 200V. The lighting circuit of the xenon lamp is generally a method in which the light output decreases as the battery voltage decreases. For this reason, it is difficult to lower the light output while consuming the same power as during actual operation in the battery. On the other hand, in this embodiment, by using an LED light source, the current value or power value supplied to the second light source 4 can be manipulated regardless of the battery voltage. In addition, the voltage for blinking the second light source 4 may be several tens of volts, and power-saving operation can be realized compared to the xenon lamp.

[0034] FIG. 5 is a diagram for explaining the connection method of the first suspected load 34 and the second suspected load 35. The first suspected load 34 may be connected to the blinking circuit 14 via the switch 34a. The control unit 112b turns off the switch 34a and disconnects the blinking circuit 14 and the first suspected load 34 except during operation confirmation. The control unit 112b may turn on the switch 34a during operation confirmation to connect the blinking circuit 14 and the first suspected load 34.

[0035] Similarly, the second suspected load 35 may be connected to the audio circuit 15 via the switch 35a. The control unit 112b turns off the switch 35a and disconnects the audio circuit 15 and the second suspected load 35 except during operation confirmation. The control unit 112b may turn on the switch 35a during operation confirmation to connect the audio circuit 15 and the second suspected load 35. From the above, the trouble of connecting the first suspected load 34 and the second suspected load 35 during operation confirmation can be saved. However, the operator may attach the first suspected load 34 and the second suspected load 35 during inspection.

[0036] FIG. 6 is a diagram for explaining a voltage detection unit. The induction lamp device 120 includes a voltage detection unit. The voltage detection unit is composed of a series circuit of resistors R1 and R2 connected between the positive and negative electrodes of the battery 13b. The connection point of the resistors R1 and R2 is connected to the control unit 112b. The voltage Vbat applied across both ends of the battery 13b is divided by the resistors R1 and R2 and input to the control unit 112b. Thereby, the control unit 112b detects the voltage Vbat of the battery 13b. The configuration of the voltage detection unit is not limited to this, as long as the voltage Vbat of the battery 13b can be detected.

[0037] FIG. 7 is a diagram for explaining the voltage waveform of the battery. When the control unit 112b receives a fire signal, it outputs a 2Hz signal that goes High every 500 ms to the flashing circuit 14. In response to the 2Hz signal, the flashing circuit 14 lights up the second light source 4. Thereby, as shown in the uppermost row of FIG. 7, the second light source 4 flashes at 2Hz and emits a flash.

[0038] The first and second comparative examples in FIG. 7 show the behavior of the battery voltage when a xenon lamp is used as the flashing light source. When a xenon lamp with high power consumption is flashed at 2Hz, generally, a large-capacity electrolytic capacitor for charging the energy for discharging the xenon lamp is used. At this time, it is necessary to perform boosting over most of the 500ms. Therefore, the battery voltage continues to decline after the 2Hz signal is transmitted and is not stable.

[0039] Therefore, the detected voltage varies greatly depending on the voltage sampling timing indicated by the arrow. Thus, it is difficult to grasp the exact voltage. Furthermore, considering individual variations, the detected voltage will vary greatly due to a slight deviation in the voltage sampling timing.

[0040] In contrast, in the present embodiment, an LED is used as the second light source 4. The lowermost row of FIG. 7 shows the voltage Vbat of the battery 13b of the present embodiment. The battery voltage fluctuates due to the load current associated with the blinking operation and the voice operation. The discharge current from the battery 13b flows in synchronization with the 2 Hz signal. The battery voltage becomes the Low period after the transmission of the 2 Hz signal, and then becomes the High period. The discharge current from the battery 13b serves as the operating power source for the blinking circuit 14, and the second light source 4 can be lit.

[0041] The voltage Vbat of the battery 13b becomes the first voltage when a current is flowing from the battery 13b to the blinking circuit 14, and becomes the second voltage when no current is flowing from the battery 13b to the blinking circuit 14. In the present embodiment, as shown by the arrow, by capturing the voltage in accordance with the timing of the first voltage or the second voltage of the voltage Vbat of the battery 13b, the detection accuracy can be improved. Further, the voltage for blinking the second light source 4 may be several tens of volts, and the fluctuation of the battery voltage is smaller than that of the xenon lamp. Therefore, the battery voltage can be accurately detected.

[0042] Next, the detection timing of the voltage of the battery 13b will be described. FIG. 8 is a diagram for explaining the detection timing of the battery voltage in the Low period. The 2 Hz signal is generated from the falling edge of the voltage Vbat. The width of the Low period is, for example, 50 ms. The control unit 112b detects the first voltage of the battery 13b in the Low period between 0 ms or more and less than 45 ms from the rising edge of the 2 Hz signal shown by the arrow in FIG. 8. Not limited to this, the control unit 112b may detect the voltage of the battery 13b within a specified time from the falling edge of the 2 Hz signal.

[0043] FIG. 9 is a diagram for explaining the detection timing of the battery voltage in the High period. The control unit 112b detects the second voltage of the battery 13b in the High period between 55 ms or more and less than 495 ms from the rising edge of the 2 Hz signal shown by the arrow in FIG. 9. From the above, the battery voltages in the High period and the Low period can be accurately detected. In the present embodiment, by the control unit 112b designating the detection timing of the battery voltage, an accurate battery voltage can be detected.

[0044] The control unit 112b determines the life of the battery 13b from the voltage Vbat of the battery 13b during self-check. The voltage Vbat used for determining the life may be either the first voltage during the Low period or the second voltage during the High period. That is, the control unit 112b may detect the voltage Vbat from at least one of the first voltage or the second voltage. Also, the voltage Vbat may be the average value of the first voltage and the second voltage. Also, the voltage Vbat may be the effective value obtained from the first voltage and the second voltage.

[0045] Also, the control unit 112b may detect the first voltage and the second voltage and calculate the difference between the first voltage and the second voltage. The difference between the first voltage and the second voltage corresponds to the voltage drop during circuit operation. Generally, the longer the operation time and the lower the battery capacity, the greater the voltage drop. Also, when boosting the battery voltage to blink the second light source 4, in order to keep the output constant, the discharge current from the battery increases as the battery voltage decreases. For this reason, the voltage drop becomes larger. Therefore, the control unit 112b may calculate the voltage Vbat or the capacity of the battery 13b from the difference between the first voltage and the second voltage.

[0046] Also, the control unit 112b may determine the voltage Vbat of the battery 13b from a combination of the first voltage, the second voltage, the difference between the first voltage and the second voltage, the average value, or the effective value. Thereby, the battery voltage can be accurately grasped.

[0047] FIG. 10 is a diagram for explaining the voice from the voice output unit 25. A change corresponding to the discharge current for voice generation is also superimposed on the voltage Vbat of the battery 13b. Note that the voltage Vbat of the battery 13b is greatly affected by the operation of the blinking circuit 14 with high power consumption. One cycle of the voice signal from the voice output unit 25 includes, for example, two warning sounds and two voices. One cycle is, for example, 7.5 seconds.

[0048] The control unit 112b may calculate the average value of the voltage Vbat of the battery 13b during one cycle of the voice emitted by the voice output unit 25. Thereby, the battery voltage can be grasped more accurately.

[0049] FIG. 11 is a plan view of the remote controller 90 according to Embodiment 1. The remote controller 90 has a confirmation button 91, a self-check button 92, a manual check button 93, and an interrupt button 94. The confirmation button 91 is a button for checking whether the battery 13a has been charged for 24 hours or more. By pressing the self-check button 92, the first light source 12 and the battery 13a are automatically inspected. In the self-check, it is determined by the control unit 112a whether the voltage of the battery 13a is higher than the discharge reference voltage when the first light source 12 is lit for a specified time. If the battery 13a falls below the discharge reference voltage before the specified time, the control unit 112a ends the inspection. The determination result is output to the charge monitor 16a. Note that the self-check can be interrupted by pressing the interrupt button 94.

[0050] By pressing the manual check button 93, the same operation as when the operation confirmation switch 10 is turned on and off is performed, and a fire signal can be input to the control unit 112b in a simulated manner. Therefore, when the manual check button 93 is pressed, the blinking and voice output simulation operations are performed sequentially or simultaneously.

[0051] As described above, in this embodiment, the existing remote controller 90 can be used to easily perform the inspection operation. Also, the interrupt button 94 enables interruption of the self-check that takes a long time. Therefore, the inspection function can be made easier to use.

[0052] FIG. 12 is a perspective view of the induction lamp device 110 according to a modification of Embodiment 1. The induction lamp device 110 is different from the induction lamp device 120 in that it does not include the voice circuit 15 and the speaker 5. The other circuit configurations are the same as those of the induction lamp device 120. Since the induction lamp device 110 does not include the voice output unit 25, it is smaller than the induction lamp device 120.

[0053] FIG. 13 is a diagram for explaining the models of the induction lamp device. Generally, there are four types A to D of induction lamp devices depending on the presence or absence of sound and the difference in operating time. For model A, the blinking duration is 25 minutes and the sound duration is 75 minutes. For model B, both the blinking duration and the sound duration are 75 minutes. For model C, the blinking duration is 25 minutes and there is no sound output. For model D, the blinking duration is 75 minutes and there is no sound output. Models A and B are sound-blinking models, and models C and D are blinking models.

[0054] Here, in the self-check of the induction lamp device, the blinking operation continues for a specified time of 25 minutes or 75 minutes. That is, the inspection time t1 in the self-check is equal to the specified time.

[0055] Hereinafter, as an example, the operation of the long-time rated operation of the sound-added blinking type induction lamp of model B will be described. In normal times, the shared circuit 11b is supplied with power from the commercial power supply 50 and charges the battery 13b. Also, the blinking circuit 14 is in a standby state, the second light source 4 is in a turned-off state, the sound circuit 15 is in a standby state, and the speaker 5 is in a silent state where it is not operating.

[0056] When the control unit 112b receives a fire signal for notifying a fire, it starts the blinking of the second light source 4 and the voice output from the speaker 5. For 75 minutes, which is the specified time from the start of blinking and voice output, the voltage of the battery 13b needs to be maintained higher than the discharge reference voltage V1, and the blinking and voice output need to continue. The blinking circuit 14 is designed so that an output voltage equal to or higher than a specified value that can blink the second light source 4 can be obtained when the voltage of the battery 13b reaches the discharge reference voltage V1. Also, the sound circuit 15 is designed so that an output voltage equal to or higher than a specified value that can output sound from the speaker 5 can be obtained when the voltage of the battery 13b reaches the discharge reference voltage V1.

[0057] FIG. 14 is a flowchart showing the operation of the control unit 112b. Using FIG. 14, the automatic inspection operation when the self-check button 92 of the remote control 90 is pressed will be described. First, when the control unit 112b receives a fire signal for notifying a fire, the blinking and voice output operations for the specified time are performed.

[0058] When no fire signal is received, the charging time is checked. If the charging time is 24 hours or less, since the battery 13b is not fully charged, self-check is not performed. If the charging time is longer than 24 hours, it is checked whether the self-check button 92 has been pressed. If the self-check button 92 has not been pressed, the control unit 112b returns to the charging state and the standby state for the fire signal.

[0059] Note that the charging time can also be checked by pressing the confirmation button 91. When the confirmation button 91 is pressed, the user is notified whether the battery 13a has been charged for 24 hours or more. The notification is made, for example, by the blinking of the charge monitor 16a. A lamp monitor and an inspection monitor are provided near the charge monitor 16a. For example, when both the inspection monitor and the charge monitor 16a blink, it indicates that the charging time of the battery 13a is 24 hours or more. Also, for example, when both the lamp monitor and the charge monitor 16a blink, it indicates that the charging time of the battery 13a is less than 24 hours. Similarly, a lamp monitor and an inspection monitor may be provided near the charge monitor 16b to notify the user whether the battery 13b has been charged for 24 hours or more.

[0060] When the self-check button 92 is pressed, the control unit 112b starts self-check. The control unit 112b sends a simulated operation signal to the blinking circuit 14 and the voice circuit 15 to start the simulated operations of blinking and voice output. When the simulated operation is continued for a certain period of time, the control unit 112b detects the voltage Vbat of the battery 13b. The control unit 112b detects the battery voltage at the timing shown in FIG. 8 or FIG. 9 or both timings, and determines whether the battery voltage is higher than the discharge reference voltage V1.

[0061] Also, the control unit 112b checks whether the operation time of blinking and voice output is longer than the inspection time t1. The inspection time t1 is a time predetermined according to the model of the induction lamp device, and in model B, it is 75 minutes for both blinking and voice output.

[0062] When the voltage Vbat of the battery 13b becomes equal to or lower than the discharge reference voltage V1 at a time point where the operation time is less than or equal to the inspection time t1, it can be determined that this is the end of the life of the battery 13b. At this time, the control unit 112b makes a non-conformance determination. In this case, the control unit 112b causes the charging monitor 16b to blink. Then, the control unit 112b returns to the standby state for the charging state and the fire signal.

[0063] When the inspection time t1 has elapsed while the voltage Vbat of the battery 13b is higher than the discharge reference voltage V1, it can be determined that the battery 13b has sufficient capacity for operation for a specified time. At this time, the control unit 112b makes a pass determination. In this case, the control unit 112b turns on the charging monitor 16b. Then, the control unit 112b returns to the normal standby state for the charging state and the fire signal.

[0064] As described above, in the self-check, if the battery voltage is higher than the discharge reference voltage V1 after the inspection time t1, it is considered a pass. Also, if the battery voltage becomes equal to or lower than the discharge reference voltage V1 before the elapse of the inspection time t1, it is considered a fail, and the inspection is terminated at that time. From the above, the life of the battery 13b can be determined.

[0065] In disaster prevention lighting, a function may be provided to check the operation of the battery to confirm the presence or absence of battery abnormalities. In JIL5502 of the Japan Lighting Industry Association Standards, the technical standards for induction lamp fixtures and evacuation induction lamp system devices are specified. This standard is to detect the battery voltage after a specified time using the self-check function for induction lamps with a display surface and determine the life of the battery.

[0066] Here, when the light source is a xenon lamp in a blinking induction lamp, the required power is large and the battery voltage fluctuation is large. For this reason, it is generally difficult to accurately grasp the battery voltage. For such reasons, generally, a self-check function is not added to blinking induction lamps, and the self-check function is not standardized in the Japan Lighting Industry Association Standards either.

[0067] However, currently, it is standardized to use LEDs for flashing light sources. According to this embodiment, by using an LED for the second light source 4, an automatic inspection function can be applied to a flashing induction lamp, a flashing device, and a flashing induction lamp with voice. As a result, there is no need to manually inspect the flashing device and the voice device, and the inspection can be easily carried out. Therefore, the maintenance of the induction lamp device can be facilitated. In addition, since the life of the battery 13b can be determined, the reliability of the induction lamp device can be improved.

[0068] As a modification of this embodiment, the control unit 112b may detect the battery voltage every time the light flashes, determine whether the battery voltage is higher than the discharge reference voltage V1, and determine that it is the life of the battery 13b when it is equal to or lower than the discharge reference voltage V1. Further, the control unit 112b may calculate the average value of the voltage Vbat of the battery 13b during one cycle of the voice emitted by the voice output unit 25, determine whether the average value is higher than the discharge reference voltage V1, and determine that it is the life of the battery 13b when it is not higher than the discharge reference voltage V1.

[0069] Also, in this embodiment, the battery voltage is compared with the discharge reference voltage V1. Not limited to this, the control unit 112b may determine whether the voltage Vbat of the battery 13b is higher than a predetermined threshold voltage when the second light source 4 is flashed and a voice is output for the inspection time. The threshold voltage can be appropriately set according to the required reliability and the like. Also, when calculating the difference between the first voltage and the second voltage, the control unit 112b determines whether the difference between the first voltage and the second voltage is higher than the threshold voltage, and may determine that it is the life of the battery 13b when the difference is equal to or higher than a predetermined value.

[0070] Further, the control unit 112b may perform self-inspection in a state where a first dummy load 34 is connected in parallel with the second light source 4 and a second dummy load 35 is connected in parallel with the speaker 5.

[0071] Here, the self-inspection method for model B has been described. In the case of model A, the simulation operation of the blinking ends at the 25-minute mark, and thereafter, only the simulation operation of the voice output continues until the 75-minute mark. Also, for models C and D, only the simulation operation of blinking is performed. In this case, when the control unit 112b blinks the second light source 4 for the inspection time t1, it may determine whether the voltage Vbat of the battery 13b is higher than a predetermined threshold voltage, and if it is below the threshold voltage, determine that it is the life of the battery 13b.

[0072] Also, the control unit 112b outputs the determination result as to whether the voltage Vbat of the battery 13b is higher than the threshold voltage to the charge monitor 16b. The charge monitor 16b is a determination result display unit that displays the determination result. The determination result display unit is not limited to this, as long as the determination result can be judged from the outside.

[0073] The technical features described in this embodiment may be used in appropriate combinations.

Explanation of Reference Numerals

[0074] 1 Main body, 2 Display panel, 3 Cover for second light source, 4 Second light source, 5 Speaker, 7 Main body cover, 7a Hole for speaker, 9 Remote control light receiving unit, 10 Operation confirmation switch, 11a Lighting circuit, 11b Shared circuit, 12 First light source, 13a Battery, 13b Battery, 14 Blinking circuit, 14b Boosting circuit, 15 Voice circuit, 16a Charge monitor, 16b Charge monitor, 25 Voice output unit, 34 First dummy load, 34a Switch, 35 Second dummy load, 35a Switch, 50 Commercial power supply, 90 Remote control, 91 Confirmation button, 92 Self-inspection button, 93 Manual inspection button, 94 Interrupt button, 110 Induction lamp device, 111a Charging circuit, 111b Charging circuit, 112a Control unit, 112b Control unit, 114b Boosting circuit, 120 Induction lamp device, 200 Fire alarm unit, 201 Fire detection unit, 202 Fire alarm equipment, 203 Signal device for induction lamp, R1, R2 Resistors

Claims

1. an LED light source; a blinking circuit connected to the output side of the LED light source for turning on or off the LED light source; a battery for supplying power to the blinking circuit; a charging circuit for receiving power supply from a commercial power source and charging the battery; a dummy load connected to the output side of the blinking circuit; a control unit that supplies power from the battery to the dummy load for a predetermined inspection time, determines whether the average value or effective value of the voltage of the battery is higher than a predetermined threshold voltage, and outputs a determination result; a disaster prevention lighting fixture comprising the same.

2. The disaster prevention lighting fixture according to claim 1, further comprising a switch for connecting the dummy load and the battery during a period in which the control unit inspects the battery.

3. The disaster prevention lighting fixture according to claim 1 or claim 2, wherein the inspection of the battery causes the battery to consume the same power as during actual operation in an emergency.

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