JP7255352B2 - guide light device - Google Patents

Description

The present invention relates to a guide light device.

Patent Literature 1 discloses a guide light device. In this guide light device, emergency operation can be confirmed by remote control by transmitting an operation confirmation signal instructing confirmation of emergency operation from the remote control transmitter. When the remote control receiver receives the operation confirmation signal, the microcomputer drives the guide light lighting circuit with the battery, thereby lighting the first light source for the period T1. Next, the microcomputer causes the second light source to blink for the period T2 by battery-powering the blinking circuit. The operator can check the first light source and the second light source at different times.

JP 2010-186616 A

In the guide light device of Patent Document 1, although the blinking operation can be confirmed, the life of the battery cannot be determined.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a guide light device capable of determining the life of a battery.

A guide light device according to the present invention comprises an LED light source, a flashing circuit for flashing the LED light source, a battery for supplying power to the flashing circuit, and a flashing of the LED light source for a predetermined inspection time. a control unit that determines whether the voltage of the battery is higher than a predetermined threshold voltage and outputs the determination result, and the voltage of the battery is released from the battery as the LED light source blinks. A current is passed through the flashing circuit , and a first voltage is obtained when the LED light source is in a lighting state , and a second voltage is provided when a current is not flowing from the battery to the flashing circuit. The voltage of the battery is taken in at the timing of the first voltage or the second voltage, and the voltage of the battery is detected from at least one of the first voltage and the second voltage.

In the guide light device according to the present invention, it can be determined whether or not the battery voltage is higher than the threshold voltage when the LED light source is blinked for the inspection time. Therefore, the life of the battery can be determined.

1 is a perspective view of a guide light device according to Embodiment 1; FIG. 1 is an exploded perspective view of a guide light device according to Embodiment 1; FIG. 1 is a circuit block diagram of a guide light device according to Embodiment 1; FIG. It is a figure explaining a 1st dummy load and a 2nd dummy load. It is a figure explaining the connection method of a 1st dummy load and a 2nd dummy load. It is a figure explaining a voltage detection part. It is a figure explaining the voltage waveform of a battery. FIG. 4 is a diagram for explaining battery voltage detection timing in a Low period; FIG. 4 is a diagram for explaining battery voltage detection timing in a High period; FIG. 4 is a diagram for explaining audio from an audio output unit; 2 is a plan view of the remote control according to Embodiment 1; FIG. FIG. 4 is a perspective view of a guide light device according to a modified example of Embodiment 1; It is a figure explaining the model of a guide light apparatus. 4 is a flow chart showing the operation of a control unit;

A guide light device according to an embodiment of the present invention will be described with reference to the drawings. The same reference numerals are given to the same or corresponding components, and repetition of description may be omitted.

Embodiment 1.
FIG. 1 is a perspective view of a guide light device 120 according to Embodiment 1. FIG. FIG. 2 is an exploded perspective view of the guide light device 120 according to Embodiment 1. FIG. The guide light device 120 is a sound addition flashing guide light having a speaker 5 that emits a voice prompting evacuation in the event of an emergency, and a second light source 4 that flashes in the event of an emergency. Here, the abnormal state is, for example, a state in which the guide light device 120 receives a fire signal that reports a fire. On the other hand, in the normal state, the guide light device 120 does not receive the fire signal.

The guide light device 120 includes a main body 1, a display panel 2, a second light source cover 3, a second light source 4, a main body cover 7, an operation confirmation switch 10, a first light source 12, and charging monitors 16a and 16b. The body 1 accommodates a lighting circuit 11a, a battery 13a, a speaker 5, a battery 13b, a shared circuit 11b, a blinking circuit 14, an audio circuit 15, and a remote control light receiving portion 9. FIG.

A body cover 7 covers the body 1 . The body cover 7 is provided with a speaker hole 7 a at a position facing the speaker 5 . Further, the body cover 7 is provided with an opening through which the display panel 2 is exposed. The operation confirmation switch 10 , the charging monitor 16 a and the remote control light receiving section 9 are provided on the bottom surface of the main body 1 .

The display panel 2 is provided with guidance display. The display panel 2 indicates the location of the evacuation exit or the direction of evacuation. A first light source 12 is provided above the display panel 2 . The first light source 12 is, for example, an LED light source. The first light source 12 illuminates the display panel 2 during regular use and during emergencies. Here, a state in which power is supplied from the commercial power supply 50 is shown during regular use. An emergency indicates a power failure state in which the commercial power source 50 is not supplied.

A second light source 4 is provided on the lower surface of the main body 1 . The second light source 4 is covered with the second light source cover 3 . The second light source 4 is a lamp that emits a large amount of light in a short period of 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 .

FIG. 3 is a circuit block diagram of the guide light device 120 according to Embodiment 1. As shown in FIG. The lighting circuit 11a has a charging circuit 111a and a control section 112a. A commercial power source 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 source 50 during normal use to charge the battery 13a.

The first light source 12 is supplied with power from the commercial power source 50 through the lighting circuit 11a during regular use, and is lit. In addition, the first light source 12 is powered by the battery 13a in an emergency and lights up.

The controller 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 source 50 and operates during normal use. Also, the control unit 112a operates by being supplied with power from the battery 13a in an emergency. In this manner, the lighting circuit 11a receives power from the commercial power source 50 during normal use, and receives power from the battery 13a during emergencies.

The shared circuit 11b has a charging circuit 111b, a control section 112b and a booster circuit 114b. 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 source 50 during regular use to charge the battery 13b. The battery 13b is, for example, a storage battery.

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 . Audio circuit 15 is connected to speaker 5 . The voice circuit 15 causes the speaker 5 to output voice prompting evacuation. This sound is also called a guiding sound. The audio circuit 15 and the speaker 5 constitute an audio output section 25 .

The battery 13b supplies power to the flashing circuit 14 and the booster circuit 114b in the event of an abnormality. The flashing circuit 14 boosts the voltage of the battery 13b with a booster circuit 14b provided therein. Thereby, the blinking circuit 14 blinks the second light source 4 . Also, the booster circuit 114b generates an operating power supply for the audio circuit 15 in the event of an abnormality. As a result, the voice output unit 25 receives power supply from the battery 13b through the booster circuit 114b, and emits a voice prompting evacuation. In this manner, flashing circuit 14 and sound circuit 15 are powered by battery 13b in the event of an abnormality. Here, the abnormal state means a state in which a fire detection signal is received from the fire detection unit 201, which will be described later.

The control unit 112b controls the charging circuit 111b, the booster circuit 114b, the blinking circuit 14, the booster circuit 14b, and the audio circuit 15. FIG. The control unit 112b includes, for example, a microcomputer. The control unit 112b is supplied with power from the commercial power source 50 and operates during normal use. Also, the control unit 112b operates by being supplied with power from the battery 13b in an emergency.

A fire alarm unit 200 is connected to the control unit 112b. The fire alarm unit 200 has a fire detection unit 201 , a fire alarm device 202 and a signal device 203 for guide lights. A fire detection unit 201 detects a fire. Fire alarm equipment 202 is an automatic fire alarm equipment. Upon receiving a fire detection signal from the fire detection unit 201 via the fire alarm device 202, the guide light signal device 203 transmits a fire signal for notifying the fire to the control units 112a and 112b.

The control unit 112b operates the blinking circuit 14 and the sound circuit 15 according to the fire signal. As a result, the second light source 4 blinks at 2 Hz, for example, and the speaker 5 emits a guiding sound.

In this manner, the shared circuit 11b operates by being supplied with power from the commercial power source 50 in normal times, and by being supplied with power by the battery 13b in an abnormal state. By sharing the battery 13b between the flashing circuit 14 and the audio circuit 15, the number of parts of the guide light device 120 can be reduced. Further, by sharing the shared circuit 11b between the blinking circuit 14 and the sound circuit 15, the number of parts of the guide light device 120 can be further reduced.

The charge monitor 16a is connected to the lighting circuit 11a. A charge monitor 16a indicates the state of charge of the battery 13a. The control unit 112a controls the lighting state of the charging monitor 16a. During charging of the battery 13a, a green lamp of the charge monitor 16a lights up. When the battery 13a reaches the end of its life, the lamp of the charge monitor 16a blinks.

The charge monitor 16b is connected to the shared circuit 11b. A charge monitor 16b indicates the state of charge of the battery 13b. The controller 112b controls the lighting state of the charging monitor 16b. During charging of the battery 13b, a green lamp of the charge monitor 16b is lit.

The remote control light receiving section 9 is connected to both the lighting circuit 11a and the shared circuit 11b. The remote control light receiving section 9 receives a signal from a remote control 90 which will be described later. Control units 112a and 112b operate according to signals from remote controller 90, respectively.

The fire alarm unit 200 and the control unit 112b are connected via the operation confirmation switch 10. FIG. The operation confirmation switch 10 can be turned on and off by pressing it. Also, the operation check 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 section 112b. Thereby, the operations of the blinking circuit 14 and the sound output unit 25 can be confirmed.

FIG. 4 is a diagram for explaining the first dummy load 34 and the second dummy load 35. As shown in FIG. When confirming the operation of the second light source 4 and the speaker 5, if blinking and voice output are performed in the same manner as in the actual fire alarm, the blinking of the flash is conspicuous and the loud sound may be perceived as annoying. For this reason, it may be difficult to check the operation of facilities that operate 24 hours a day.

On the other hand, in this embodiment, the first dummy load 34 is connected in parallel with the second light source 4 . A second dummy load 35 is connected in parallel with the speaker 5 . By connecting the first dummy load 34 to the second light source 4, it is possible to reduce the light intensity of the second light source 4 at the time of checking the operation while allowing the battery 13b to consume the same power as during actual operation. 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 or not the operation for the specified time is possible during the actual operation. Further, by reducing the amount of light of the second light source 4, it is possible to confirm whether or not there is an abnormality in the blinking light source by inconspicuously blinking the blinking light source.

Similarly, by connecting the second dummy load 35 to the speaker 5, it is possible to make the battery 13b consume the same amount of power as during actual operation, while reducing the sound volume during operation confirmation. 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 check whether there is an abnormality in the audio output unit 25 without disturbing the surroundings.

The first dummy load 34 and the second dummy load 35 are resistors, for example. Not limited to this, the first dummy load 34 and the second dummy load 35 may be supplied with current and consume power.

Here, when the second light source 4 is a xenon lamp, it is generally necessary to generate a high voltage of about 200V in order to discharge the xenon lamp. A lighting circuit for a xenon lamp is generally of a type in which the light output decreases as the battery voltage decreases. Therefore, it is difficult to lower the light output while allowing the battery to consume the same amount of power as during actual operation. On the other hand, in this embodiment, by using an LED light source, it is possible to control the current value or power value supplied to the second light source 4 regardless of the battery voltage. In addition, the voltage for blinking the second light source 4 may be several tens of volts, and operation with lower power consumption can be realized compared to the xenon lamp.

FIG. 5 is a diagram for explaining how the first dummy load 34 and the second dummy load 35 are connected. The first dummy load 34 may be connected to the flashing circuit 14 via a switch 34a. The control unit 112b turns off the switch 34a to cut off the flashing circuit 14 and the first dummy load 34 except when checking the operation. The control unit 112b may turn on the switch 34a to connect the flashing circuit 14 and the first dummy load 34 when confirming the operation.

Similarly, the second dummy load 35 may be connected to the audio circuit 15 via a switch 35a. The control unit 112b turns off the switch 35a to cut off the audio circuit 15 and the second dummy load 35 except when checking the operation. The control unit 112b may turn on the switch 35a to connect the audio circuit 15 and the second dummy load 35 when confirming the operation. As described above, it is possible to save the trouble of connecting the first dummy load 34 and the second dummy load 35 when checking the operation. Alternatively, the operator may attach the first dummy load 34 and the second dummy load 35 during inspection.

FIG. 6 is a diagram for explaining the voltage detector. The guide light device 120 has a voltage detector. The voltage detector is composed of a series circuit of resistors R1 and R2 connected between the positive and negative electrodes of the battery 13b. A connection point of the resistors R1 and R2 is connected to the control section 112b. A voltage Vbat applied across the battery 13b is divided by the resistors R1 and R2 and input to the controller 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 it can detect the voltage Vbat of the battery 13b.

FIG. 7 is a diagram for explaining voltage waveforms of a battery. Upon receiving the fire signal, the controller 112b outputs to the flashing circuit 14 a 2 Hz signal that goes High every 500 ms. The blinking circuit 14 lights the second light source 4 according to the 2 Hz signal. As a result, the second light source 4 flickers at 2 Hz and flashes, as shown in the uppermost part of FIG.

A first comparative example and a second comparative example in FIG. 7 show the behavior of battery voltage when a xenon lamp is used as a blinking light source. When a xenon lamp that consumes a large amount of power is blinked at 2 Hz, a large-capacity electrolytic capacitor that is charged with energy for discharging the xenon lamp is generally used. At this time, it is necessary to boost the voltage over most of the 500 ms. Therefore, the battery voltage continues to drop after the 2 Hz signal is transmitted, and is not stable.

Therefore, the detected voltage varies greatly depending on the voltage acquisition timing indicated by the arrow. Therefore, it is difficult to grasp the correct voltage. Furthermore, considering individual variations, even a slight deviation in the timing of voltage acquisition causes large fluctuations in the detected voltage.

In contrast, in this embodiment, an LED is used as the second light source 4 . The bottom row in FIG. 7 shows the voltage Vbat of the battery 13b of this embodiment. Battery voltage fluctuates with load current associated with blinking and sounding operations. A discharge current from the battery 13b flows in synchronization with the 2 Hz signal. After the 2 Hz signal is transmitted, the battery voltage becomes a Low period, and then becomes a High period. A discharge current from the battery 13b becomes an operating power source for the flashing circuit 14, and the second light source 4 can be lit.

The voltage Vbat of the battery 13b becomes a first voltage when current is flowing from the battery 13b to the blinking circuit 14, and becomes a second voltage when current is not flowing from the battery 13b to the blinking circuit 14. FIG. In the present embodiment, as indicated by the arrows, the voltage Vbat of the battery 13b takes in the voltage in accordance with the timing of the first voltage or the second voltage, thereby improving detection accuracy. Also, 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 detected accurately.

Next, the detection timing of the voltage of the battery 13b will be described. FIG. 8 is a diagram for explaining battery voltage detection timing during a Low period. A 2 Hz signal is generated from the falling edge of 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 within 0 ms or more and less than 45 ms from the rising edge of the 2 Hz signal indicated by the arrow in FIG. Without being limited to this, the control unit 112b may detect the voltage of the battery 13b during a specified time from the falling edge of the 2 Hz signal.

FIG. 9 is a diagram for explaining battery voltage detection timing in a High period. The control unit 112b detects the second voltage of the battery 13b in the High period within 55 ms or more and less than 495 ms from the rising edge of the 2 Hz signal indicated by the arrow in FIG. From the above, it is possible to accurately detect the battery voltage during the High period and the Low period. In this embodiment, the control unit 112b designates the detection timing of the battery voltage, so that the battery voltage can be detected accurately.

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

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. In general, the longer the operating time and the lower the battery capacity, the larger the voltage drop. Further, when the battery voltage is boosted to flash the second light source 4, the output is kept constant, so the battery discharge current increases as the battery voltage decreases. Therefore, the voltage drop increases. Therefore, the controller 112b may calculate the voltage Vbat or the capacity of the battery 13b from the difference between the first voltage and the second voltage.

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. This makes it possible to accurately grasp the battery voltage.

FIG. 10 is a diagram for explaining the sound from the sound output unit 25. As shown in FIG. The voltage Vbat of the battery 13b is also superimposed with a change corresponding to the discharge current for vocalization. The voltage Vbat of the battery 13b is greatly affected by the operation of the flashing circuit 14, which consumes a large amount of power. One cycle of the audio signal from the audio output unit 25 includes, for example, two warning sounds and two voices. One period is, for example, 7.5 seconds.

The control unit 112b may calculate the average value of the voltage Vbat of the battery 13b during one cycle of the sound produced by the sound output unit 25. FIG. Thereby, the battery voltage can be grasped more accurately.

11 is a plan view of remote control 90 according to Embodiment 1. FIG. The remote controller 90 has a confirm button 91 , a self-inspection button 92 , a manual inspection button 93 and an abort button 94 . The confirmation button 91 is a button for confirming whether or not the battery 13a has been charged for 24 hours or more. By pressing the self-inspection button 92, the first light source 12 and the battery 13a are automatically inspected. In the self-inspection, the controller 112a determines whether or not the voltage of the battery 13a is higher than the discharge reference voltage when the first light source 12 is turned on for a specified period of time. Note that the control unit 112a terminates the inspection when the battery 13a falls below the discharge reference voltage before the specified time. A determination result is output to the charge monitor 16a. By pressing the interrupt button 94, the self-inspection can be interrupted.

By pressing the manual inspection button 93, the operation is the same as when the operation check switch 10 is turned on and off, and a simulated fire signal can be input to the control unit 112b. Therefore, by pressing the manual inspection button 93, the simulated operation of flashing and voice output is performed in order or simultaneously.

Thus, in this embodiment, the existing remote controller 90 can be used to easily perform inspection operations. Further, the interruption button 94 enables interruption of the self-inspection for a long period of time. Therefore, the inspection function can be easily used.

FIG. 12 is a perspective view of guide light device 110 according to a modification of the first embodiment. The guide light device 110 differs from the guide light device 120 in that it does not include the audio circuit 15 and the speaker 5 . Other circuit configurations are the same as those of the guide light device 120 . The guide light device 110 is smaller than the guide light device 120 because it does not include the audio output unit 25 .

FIG. 13 is a diagram for explaining the model of the guide light device. There are generally four types of guide light devices, A to D, depending on the presence or absence of sound and the difference in operation time. Model A has a flashing duration of 25 minutes and a voice duration of 75 minutes. Model B has a duration of blinking and a duration of sound of both 75 minutes. Model C has a flashing duration of 25 minutes and no sound output. Model D has a flashing duration of 75 minutes and no sound output. Models A and B are voice blinking models, and models C and D are blinking models.

Here, in the self-inspection of the guide light device, the blinking operation is continued for the specified time of 25 minutes or 75 minutes. That is, the inspection time t1 in self-inspection is equal to the specified time.

In the following, as an example, the long-time rated operation of the sound addition flashing guide light, which is model B, will be described. Normally, the shared circuit 11b is supplied with power from the commercial power source 50 to charge the battery 13b. The blinking circuit 14 is in a standby state, the second light source 4 is in a non-lighting state, the audio circuit 15 is in a standby state, and the speaker 5 is in a silent state.

When the control unit 112b receives a fire signal that notifies of a fire, the second light source 4 starts blinking and the speaker 5 starts speaking. For the specified time of 75 minutes from the start of blinking and vocalization, the voltage of the battery 13b must be maintained higher than the discharge reference voltage V1, and the blinking and vocalization must be continued. The blinking circuit 14 is designed to obtain an output voltage higher than a specified value that can blink the second light source 4 when the voltage of the battery 13b is the discharge reference voltage V1. Also, the audio circuit 15 is designed to obtain an output voltage higher than a specified value that enables audio to be output from the speaker 5 when the voltage of the battery 13b is the discharge reference voltage V1.

FIG. 14 is a flow chart showing the operation of the control section 112b. The automatic inspection operation when the self-inspection button 92 of the remote controller 90 is pressed will be described with reference to FIG. First, when the control unit 112b receives a fire signal that notifies of a fire, flashing and voice output operations are performed for a specified time.

If no fire signal is received, a check of charging time is performed. If the charging time is 24 hours or less, the battery 13b is not sufficiently charged and self-inspection 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-inspection button 92 is not pressed, the controller 112b returns to the charging state and the fire signal waiting state.

Note that the charging time can also be confirmed 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 blinking the charging monitor 16a. A lamp monitor and an inspection monitor are provided near the charging monitor 16a. For example, when both the inspection monitor and the charging monitor 16a blink, it indicates that the charging time of the battery 13a is 24 hours or longer. Also, for example, when both the lamp monitor and the charging 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 or not the battery 13b has been charged for 24 hours or longer.

When the self-inspection button 92 is pressed, the control unit 112b starts self-inspection. The control unit 112b transmits a simulated operation signal to the flashing circuit 14 and the audio circuit 15 to start simulated blinking and audio output operations. When the simulated operation is continued for a certain period of time, the controller 112b detects the voltage Vbat of the battery 13b. The control unit 112b detects the battery voltage at the timings shown in FIG. 8 and/or at the timings shown in FIG. 9, and determines whether or not the battery voltage is higher than the discharge reference voltage V1.

Also, the control unit 112b confirms whether or not the operation time of blinking and sound output is longer than the inspection time t1. The inspection time t1 is a predetermined time depending on the model of the guide light device, and model B is 75 minutes for both flashing and voice output.

If the voltage Vbat of the battery 13b becomes equal to or less than the discharge reference voltage V1 at the time when the operation time is equal to or less than the inspection time t1, it can be determined that the life of the battery 13b has expired. At this time, the control unit 112b makes a rejection determination. In this case, the controller 112b blinks the charge monitor 16b. After that, the control unit 112b returns to the charging state and the standby state for the fire signal.

If the test time t1 has passed 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 a sufficient capacity for operation for the specified time. At this time, the control unit 112b makes a pass determination. In this case, the controller 112b turns on the charging monitor 16b. After that, the control unit 112b returns to the normal state, which is the charging state and the fire signal waiting state.

Thus, the self-inspection is passed if the battery voltage is higher than the discharge reference voltage V1 after the inspection time t1. If the battery voltage becomes equal to or lower than the discharge reference voltage V1 before the inspection time t1 elapses, the inspection is terminated at that point. From the above, the life of the battery 13b can be determined.

Emergency lighting is sometimes provided with a function of checking battery operation to check whether there is an abnormality in the battery. JIL5502 of the Japan Lighting Manufacturers Association standard defines the equipment technical standards for guide light fixtures and evacuation guide light systems. This standard is to use an automatic inspection function to detect the battery voltage after a specified period of time and to determine the life of the battery for a guide light having a display surface.

Here, when the light source of the flashing guide light is a xenon lamp, a large amount of electric power is required and the fluctuation of the battery voltage is large. For this reason, it is generally difficult to grasp an accurate battery voltage. For these reasons, blinking guide lights are generally not provided with an automatic inspection function, and the automatic inspection function is not standardized even in the standards of the Japan Lighting Manufacturers Association.

However, at present, it is standardized to use LEDs as blinking light sources. According to the present embodiment, by using an LED as the second light source 4, the automatic inspection function can be applied to a flashing guide light, a flashing device, and a flashing guide light with sound. As a result, there is no need to manually inspect the flashing device and the audio device, and the inspection can be carried out easily. Therefore, maintenance of the guide light device can be facilitated. Also, since the life of the battery 13b can be determined, the reliability of the guide light device can be improved.

As a modification of the present embodiment, the control unit 112b detects the battery voltage for each blinking, determines whether the battery voltage is higher than the discharge reference voltage V1, and determines whether the battery voltage is higher than the discharge reference voltage V1. It may be determined that the battery 13b has reached the end of its life. In addition, the control unit 112b calculates the average value of the voltage Vbat of the battery 13b during one cycle of the sound emitted by the sound output unit 25, determines whether the average value is higher than the discharge reference voltage V1, If it is not higher than the discharge reference voltage V1, it may be determined that the battery 13b has reached the end of its life.

Moreover, in the present embodiment, the battery voltage and the discharge reference voltage V1 are compared. Not limited to this, the control unit 112b determines whether or not the voltage Vbat of the battery 13b is higher than a predetermined threshold voltage when the second light source 4 is blinked for the inspection time and the sound is output. You should judge. The threshold voltage can be appropriately set according to the required reliability and the like. Further, 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 determines whether the difference is equal to or greater than a predetermined value. , it may be determined that the life of the battery 13b has expired.

Further, the control unit 112b may connect the first dummy load 34 in parallel with the second light source 4 and connect the second dummy load 35 in parallel with the speaker 5, and perform the self-inspection.

Here, the self-inspection method for model B has been explained. In the case of model A, the simulated blinking operation ends at the 25th minute, and then only the simulated voice output operation continues until the 75th minute. In models C and D, a simulated operation of blinking only is performed. In this case, the control unit 112b determines whether or not the voltage Vbat of the battery 13b is higher than a predetermined threshold voltage when the second light source 4 is blinked for the inspection time t1. It may be determined that the life of the battery 13b has expired.

In addition, the control unit 112b outputs to the charge monitor 16b the determination result as to whether or not the voltage Vbat of the battery 13b is higher than the threshold voltage. The charge monitor 16b is a determination result display unit that displays the determination result. The discrimination result display unit is not limited to this, and it is sufficient if the discrimination result can be judged from the outside.

The technical features described in this embodiment may be used in combination as appropriate.

REFERENCE SIGNS LIST 1 main body 2 display panel 3 second light source cover 4 second light source 5 speaker 7 main body cover 7a speaker hole 9 remote control light receiver 10 operation confirmation switch 11a lighting circuit 11b shared circuit 12 1st light source 13a battery 13b battery 14 flashing circuit 14b booster circuit 15 audio circuit 16a charging monitor 16b charging monitor 25 audio 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 interruption button, 110 guide light device, 111a charging circuit, 111b charging circuit, 112a control unit, 112b control unit, 114b Booster circuit 120 Guide light device 200 Fire alarm unit 201 Fire detection unit 202 Fire alarm equipment 203 Signal device for guide light R1, R2 Resistors

Claims (7)

an LED light source;
a blinking circuit for blinking the LED light source;
a battery that powers the flashing circuit;
a control unit that determines whether the voltage of the battery is higher than a predetermined threshold voltage when the LED light source is blinked for a predetermined inspection time, and outputs a determination result;
with
As the LED light source blinks , current flows from the battery to the flashing circuit, and when the LED light source is in a lighting state, the voltage of the battery becomes a first voltage, and current flows from the battery to the flashing circuit. is the second voltage when there is no
The control unit acquires the voltage of the battery in accordance with the timing of the voltage of the battery becoming the first voltage or the second voltage, and converts the voltage of the battery from at least one of the first voltage or the second voltage. A guide light device characterized by detecting. 3. The controller detects the first voltage and the second voltage, and determines whether a difference between the first voltage and the second voltage is higher than the threshold voltage. 2. The guide light device according to 1. The control unit determines whether or not the voltage of the battery is higher than the threshold voltage when the LED light source is blinked for the inspection time while the first dummy load is connected in parallel with the LED light source. 3. The guide light device according to claim 1, wherein the determination result is outputted. A voice output unit that receives power supply from the battery and emits a voice urging evacuation,
The control unit determines whether the voltage of the battery is higher than the threshold voltage when the LED light source blinks for the inspection time and outputs the sound, and outputs the determination result. The guide light device according to any one of claims 1 to 3, characterized in that: 5. The method according to claim 4, wherein the control unit calculates an average value of the voltage of the battery during one cycle of the voice, and determines whether the average value is higher than the threshold voltage. A guide light device as described. The audio output unit includes a speaker,
With a second dummy load connected in parallel with the speaker, the control unit flashes the LED light source for the inspection time and outputs the sound when the voltage of the battery reaches the threshold voltage. 6. The guide light device according to claim 4 or 5, wherein it is determined whether or not the value is higher than or not, and the determination result is output. 7. The guide light device according to any one of claims 1 to 6, further comprising a discrimination result display section for displaying the discrimination result.

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