JP7122627B2 - Lighting device, disaster prevention lighting equipment, and disaster prevention lighting system - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to lighting devices, disaster prevention lighting fixtures, and disaster prevention lighting systems.

As an example of conventional disaster prevention lighting equipment, an emergency lighting device described in Patent Document 1 will be exemplified.

The emergency lighting device described in Patent Document 1 includes an emergency lamp, a rechargeable emergency power supply that supplies power to the emergency lamp in an emergency, an inspection unit, and a wireless communication module.

The inspection unit performs predetermined inspections of the emergency power supply at regular inspection intervals, and the wireless communication module transmits inspection results by the inspection unit. The inspection department conducts inspections for judging abnormalities in the emergency power supply for a predetermined period of time as stipulated by law. Moreover, the inspection department sets a predetermined period of time as defined by law as an inspection cycle, and performs the current inspection when the predetermined period has passed since the previous inspection. In other words, the inspection unit periodically performs inspections for a predetermined period of time as stipulated by law.

JP 2018-55796 A

By the way, the requirements for inspection of the built-in emergency power supply for the guide lights included in disaster prevention lighting fixtures (see Japanese Industrial Standards C 8105-2-22: 201422.3.22A) have been relaxed. In other words, if the emergency power supply is a nickel-cadmium storage battery, inspection is not necessary in principle until three years have passed since the year of manufacture. In addition, if the emergency power supply is a nickel-metal hydride storage battery, inspection is not required in principle until it exceeds 5 years from the year of manufacture (Fire Prevention No. 80, Partial Revision of Test Standards and Inspection Procedures for Firefighting Equipment, etc. ( Notice)”).

However, with the relaxation of requirements for inspection of built-in emergency power sources, there is a risk that the timing at which inspection should be performed may be overlooked.

An object of the present disclosure is to provide a lighting device, a disaster prevention lighting fixture, and a disaster prevention lighting system that can more reliably inspect an emergency power supply.

A lighting device according to an aspect of the present disclosure includes a lighting circuit, a power timer, and a control circuit. The lighting circuit lights the light source with emergency power supplied from the emergency power supply when the external power supply is stopped. The power timer counts the usage period of the emergency power supply. The control circuit performs a check to discharge the emergency power supply after the counted value of the usage period reaches a predetermined check value. The timed value of the usage period is the time that has elapsed since charging of the emergency power supply was started.
A lighting device according to an aspect of the present disclosure includes a lighting circuit, a power timer, and a control circuit. The lighting circuit lights the light source with emergency power supplied from the emergency power supply when the external power supply is stopped. The power timer counts the usage period of the emergency power supply. The control circuit performs a check to discharge the emergency power supply after the counted value of the usage period reaches a predetermined check value. The measured value of the period of use is the elapsed time from the manufacturing of the emergency power supply.
A lighting device according to an aspect of the present disclosure includes a lighting circuit, a power timer, and a control circuit. The lighting circuit lights the light source with emergency power supplied from the emergency power supply when the external power supply is stopped. The power timer counts the usage period of the emergency power supply. The control circuit performs a check to discharge the emergency power supply after the counted value of the usage period reaches a predetermined check value. The control circuit does not reset the usage period time value when the inspection is performed.

A disaster prevention lighting fixture according to an aspect of the present disclosure includes the lighting device described above, a light source that is lit by an output of the lighting device, an emergency power supply that supplies the lighting device with emergency power for lighting the light source, a main body; The main body is mounted with the lighting device, the light source, and the emergency power supply.

A disaster prevention lighting system according to an aspect of the present disclosure includes the plurality of disaster prevention lighting fixtures described above.

INDUSTRIAL APPLICABILITY As described above, the present disclosure has the effect of being able to more reliably inspect the emergency power supply.

FIG. 1 is a block diagram showing the configuration of a disaster prevention lighting fixture that includes a lighting device according to an embodiment of the present disclosure. FIG. 2 is a time chart showing the operation of the same lighting device. FIG. 3 is a time chart showing the operation of the lighting device of the first modified example of the same. 4A is a top view of a disaster prevention lighting fixture according to an embodiment of the present disclosure; FIG. FIG. 4B is a bottom view of the disaster prevention lighting fixture of the same. FIG. 4C is a side view of the same disaster prevention lighting fixture. FIG. 5 is a block diagram showing the configuration of the disaster prevention lighting system including the lighting device according to the embodiment of the present disclosure.

Each drawing described in the following embodiments is a schematic drawing, and the ratio of the size and thickness of each component does not necessarily reflect the actual dimensional ratio. Note that the configurations described in the following embodiments are merely examples of the present disclosure. The present disclosure is not limited to the following embodiments, and various modifications can be made according to design and the like as long as the effects of the present disclosure can be achieved.

The disaster prevention lighting fixture 1 according to the embodiment is an embedded emergency light that is embedded in an embedded hole provided in the indoor ceiling of a building. However, disaster prevention lighting fixtures are not limited to recessed emergency lights. The disaster prevention lighting equipment may be an exposed type emergency light that is directly attached to the ceiling, or a disaster prevention lighting equipment other than an emergency light such as a guide light.

The following embodiments relate generally to lighting devices, disaster lighting fixtures, and disaster lighting systems. More specifically, the following embodiments relate to a lighting device that turns on a light source in an emergency such as a power failure, a disaster prevention lighting fixture, and a disaster prevention lighting system.

FIG. 1 shows a block configuration of an emergency lighting fixture 1 of this embodiment. A disaster prevention lighting fixture 1 includes a light source 2 , a battery 3 , and a lighting device 4 .

The light source 2 has a plurality of solid state light emitting devices. For example, the light source 2 has an LED array in which a plurality of LEDs (Light Emitting Diodes) are connected in series as a plurality of solid light emitting devices. It should be noted that the light source 2 is not limited to having an LED as a solid light emitting device. The light source 2 may comprise, for example, an organic EL (Organic Electro Luminescence, OEL) or other solid state light emitting device such as a semiconductor laser diode (Laser Diode, LD).

The battery 3 is a rechargeable storage battery (secondary battery) and corresponds to an emergency power supply. Although the battery 3 is not limited to a specific type of secondary battery, the battery 3 is preferably a nickel-hydrogen battery or a nickel-cadmium battery, for example. Then, the battery 3 can output emergency power by discharging the accumulated electric charge. That is, the power supplied from the battery 3 is emergency power.

The lighting device 4 includes a charging circuit 40 , a lighting circuit 41 and a control circuit 42 . The lighting device 4 preferably further includes a notification circuit 43 . The lighting device 4 preferably further includes a DC power supply circuit 45 , a power failure detection circuit 46 , a receiver 47 , a monitor lamp 48 and a push button switch 49 . The lighting device 4 of the present embodiment includes three pushbutton switches 49, which are referred to as pushbutton switches 49A, 49B, and 49C, respectively.

The DC power supply circuit 45 is composed of, for example, a self-excited switching power supply circuit such as a ringing choke converter, and converts an AC voltage supplied from an external power supply (eg, a commercial power system) 9 to an effective value of the AC voltage. is preferably converted to a lower DC voltage. The charging circuit 40 is preferably configured to operate when being supplied with power from the external power supply 9 and to flow charging current from the DC power supply circuit 45 to the battery 3 . The lighting circuit 41 is preferably configured to convert the DC current supplied from the battery 3 into a constant current and supply the constant current to the light source 2 . The power failure detection circuit 46 is configured to detect power failure of the external power supply 9 from the output voltage of the DC power supply circuit 45 and notify the control circuit 42 of the power failure.

The monitor lamp 48 is preferably composed of, for example, a light-emitting diode that emits green light, and is caused to emit light by the charging current supplied from the charging circuit 40 to the battery 3 . The receiving unit 47 is configured to receive a radio signal using infrared rays as a communication medium, demodulate a transmission frame from the received radio signal, and pass the transmission frame to the control circuit 42 . This radio signal is transmitted from a wireless transmitter operated by, for example, an inspector performing inspection. It should be noted that the inspection is carried out at intervals stipulated by law, and the purpose is to check the degree of deterioration of the battery 3 by discharging the battery 3 for a prescribed period of time or longer. Furthermore, it is preferable that the inspection has a further purpose of forcibly operating the lighting circuit 41 and confirming that the light source 2 maintains the lighting state for a specified time or longer.

The notification circuit 43 has, for example, a display element such as a green LED or a red LED, and an LED drive circuit that drives the display element to emit light. The notification circuit 43 may include a sound generator such as a piezoelectric sounder, and a sound drive circuit that drives the sound generator to produce a notification sound or notification message. Note that the notification circuit 43 may use the monitor lamp 48 as a display element.

Furthermore, the notification circuit 43 may perform notification by visualizing an identifier such as a character, symbol, or pattern. For example, it is preferable that identifiers such as characters such as "It's time for an inspection", symbols such as O and X, and patterns are formed on the cover 11 as watermarks. The notification circuit 43 preferably visualizes the identifier by emitting light emitted from a light-emitting element such as an LED to the outside of the cover 11 through a watermark. The notification circuit 43 may visualize the identifier by displaying it on a display device such as a liquid crystal display.

The control circuit 42 operates by receiving power from the external power supply 9 or the battery 3 . The control circuit 42 is preferably configured with a computer system. A computer system is mainly composed of a processor and a memory as hardware. The function of the control circuit 42 in the present disclosure is realized by the processor executing a program recorded in the memory of the computer system. The program may be recorded in advance in the memory of the computer system, may be provided through an electric communication line, or may be recorded in a non-temporary recording medium such as a computer system-readable memory card, optical disk, or hard disk drive. may be provided. A processor in a computer system consists of one or more electronic circuits including semiconductor integrated circuits (ICs) or large scale integrated circuits (LSIs). The integrated circuit such as IC or LSI referred to here is called differently depending on the degree of integration, and includes integrated circuits called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). In addition, an FPGA (Field-Programmable Gate Array), which is programmed after the LSI is manufactured, or a logic device capable of reconfiguring the bonding relationship inside the LSI or reconfiguring the circuit partitions inside the LSI, shall also be adopted as the processor. can be done. A plurality of electronic circuits may be integrated into one chip, or may be distributed over a plurality of chips. A plurality of chips may be integrated in one device, or may be distributed in a plurality of devices. A computer system, as used herein, includes a microcontroller having one or more processors and one or more memories. Accordingly, the microcontroller also consists of one or more electronic circuits including semiconductor integrated circuits or large scale integrated circuits.

The control circuit 42 is configured to operate the charging circuit 40 and stop the lighting circuit 41 when the power failure detection circuit 46 does not detect a power failure. Further, the control circuit 42 is configured to stop the charging circuit 40 and operate the lighting circuit 41 when the power failure detection circuit 46 detects a power failure. Also, regardless of the state of charge of the battery 3, the charging circuit 40 may be stopped and the lighting circuit 41 may be operated to steadily light the light source 2 (for example, full lighting). If the amount of charge in the charging circuit 40 is sufficiently smaller than the amount of discharge to the lighting circuit 41 (for example, trickle charging), the lighting circuit 41 is operated without stopping the charging circuit 40 to steadily light the light source 2 (for example, at full power). lighting).

Furthermore, when the push button switch 49A is pressed or when a transmission frame is received from the receiver 47, the control circuit 42 determines that an inspection instruction has been given by an inspector or the like. If the battery 3 is fully charged, the control circuit 42 stops the charging circuit 40 and operates the lighting circuit 41 to discharge the battery 3 for a predetermined period of time. configured to do If the battery 3 is not fully charged, the control circuit 42 first operates the charging circuit 40 to fully charge the battery 3, and then stops the charging circuit 40 for a predetermined specified time. In addition, the lighting circuit 41 is operated to discharge the battery 3, and inspection is performed. If the battery 3 is not in a fully charged state, the control circuit 42 operates the charging circuit 40 to charge the battery 3, while operating the lighting circuit 41 to charge the battery 3 for a predetermined specified time. may be discharged.

Also, regardless of the state of charge of the battery 3, the charging circuit 40 may be stopped and the lighting circuit 41 may be operated to steadily light the light source 2 (for example, full lighting). If the amount of charge in the charging circuit 40 is sufficiently smaller than the amount of discharge to the lighting circuit 41 (for example, trickle charging), the lighting circuit 41 is operated without stopping the charging circuit 40 to steadily light the light source 2 (for example, at full power). lighting).

However, when the push button switch 49B is pressed, the control circuit 42 is configured to operate the lighting circuit 41 for several seconds, and then stop the lighting circuit 41 and operate the charging circuit 40 again. preferably.

The disaster-prevention lighting equipment 1 described above is a disaster-prevention lighting equipment such as a guide light or an emergency lighting equipment. Guidance lights and emergency lighting fixtures must be inspected as required by law. The Fire Service Law stipulates the timing for inspection of guide lights, and the Building Standards Law stipulates the timing for inspection of emergency lighting equipment.

Furthermore, if a predetermined number of years has not passed since the manufacturing year of the storage battery mounted on the guide light, it may not be necessary to carry out the above-described inspection of the guide light in consideration of the life of the storage battery. In this case, if the predetermined number of years has passed since the manufacturing year of the storage battery mounted on the guide light, it is necessary to carry out the above-described inspection of the guide light in consideration of the life of the storage battery. For example, if the storage battery is a nickel-cadmium battery, it is preferable to perform an inspection if the storage battery is more than three years old. In addition, if the storage battery is a nickel-metal hydride battery, it is preferable to carry out an inspection if five years have passed since the storage battery was manufactured.

However, in reality, it is difficult to say that inspections are performed at appropriate times (for example, at times specified by laws and regulations). Therefore, the disaster prevention lighting fixture 1 of the present embodiment has the following automatic inspection function in order to perform inspection at an appropriate time considering the life of the storage battery.

First, as a premise, in the disaster prevention lighting fixture 1 of the present embodiment, if the usage period of the battery 3 does not exceed a predetermined time, the disaster prevention lighting fixture 1 does not need to be inspected. Therefore, the control circuit 42 automatically performs an inspection after the usage period of the battery 3 reaches a predetermined time. If the battery 3 is fully charged during inspection, the control circuit 42 stops the charging circuit 40 and operates the lighting circuit 41 for a predetermined period of time to keep the light source 2 steady. Lights up (for example, all lights up). If the battery 3 is not fully charged, the control circuit 42 first operates the charging circuit 40 to fully charge the battery 3, and then stops the charging circuit 40 for a predetermined specified time. At the same time, the lighting circuit 41 is operated to steadily light the light source 2 (for example, full lighting). If the battery 3 is not in a fully charged state, the control circuit 42 operates the charging circuit 40 to charge the battery 3, while operating the lighting circuit 41 to charge the battery 3 for a predetermined specified time. may be discharged.

Also, regardless of the state of charge of the battery 3, the charging circuit 40 may be stopped and the lighting circuit 41 may be operated to steadily light the light source 2 (for example, full lighting). If the amount of charge in the charging circuit 40 is sufficiently smaller than the amount of discharge to the lighting circuit 41 (for example, trickle charging), the lighting circuit 41 is operated without stopping the charging circuit 40 to steadily light the light source 2 (for example, at full power). lighting).

Then, the control circuit 42 determines whether the disaster prevention lighting The instrument 1 is inspected, and the notification circuit 43 notifies the result of the inspection. For example, when the notification circuit 43 has an LED, if the control circuit 42 determines that the battery 3 is degraded and the battery 3 is not normal (abnormal), the LED lights up or blinks to notify the user. . Further, if the control circuit 42 determines that the light source 2 is degraded and the light source 2 is not normal (abnormal), it reports by lighting or blinking another LED. The notification circuit 43 may use voice to notify that replacement of the light source 2 or the battery 3 is urged.

Further, the control circuit 42 may determine that the battery 3 is normal if the lighting circuit 41 is operating normally after a specified time has elapsed since the start of the inspection. The control circuit 42 may determine that the battery 3 is not normal (abnormal) if the lighting circuit 41 does not operate normally due to a drop in the output voltage of the battery 3 when the specified time has elapsed.

The control circuit 42 is configured to have functions of a power supply timer 421 and an inspection timer 422 . When the control circuit 42 has an RTC (Real Time Clock), the power timer 421 and the inspection timer 422 periodically read the RTC value and integrate the count value to measure the elapsed time. take action. Alternatively, the power timer 421 and the inspection timer 422 may be counters that perform timekeeping operations by incrementing the count value at a constant cycle (for example, the cycle of the clock frequency).

The power timer 421 counts the usage period Ta of the battery 3 . In the present embodiment, the usage period Ta is the elapsed time from when the charging circuit 40 starts charging the battery 3 . However, the starting point of the usage period Ta may be the time when the new battery 3 is fully charged by the charging circuit 40 . Then, when the power supply timer 421 starts counting the usage period Ta, the counted value [Ta] of the usage period Ta increases from zero with the passage of time. Also, the power timer 421 is reset when the battery 3 is replaced with a new battery 3, and the clock value [Ta] becomes zero. In this embodiment, a person presses the pushbutton switches 49A and 49B at the same time after the battery 3 is replaced. The control circuit 42 resets the power timer 421 when the pushbutton switches 49A and 49B are pressed simultaneously. After the power timer 421 is reset, the clock value [Ta] increases again from zero.

Alternatively, when the control circuit 42 operates only with emergency power, the control circuit 42 may detect whether the battery 3 is to be replaced based on the presence or absence of supply of emergency power. For example, immediately before the operation of the control circuit 42 stops when the voltage of the emergency power transmission path drops below the operating voltage of the control circuit 42, the control circuit 42 stores the time information immediately before the stop based on the value of the RTC. Keep Then, immediately after the voltage of the emergency power transmission path exceeds the operating voltage of the control circuit 42 and the operation of the control circuit 42 is restarted, the control circuit 42 acquires time information immediately after the restart based on the value of the RTC. get. The control circuit 42 obtains the stop time during which the operation was stopped from the difference between the time information immediately before the stop and the time information immediately after the restart. Detect and reset the power timer 421 .

The inspection timer 422 counts the non-inspection period Tb in order to determine when to inspect the same battery 3 again (inspection after the second time on the same battery 3) after the inspection is performed. When the inspection timer 422 starts counting the time of the non-inspection period Tb, the measured value [Tb] of the non-inspection period Tb increases from zero with the passage of time. Also, the inspection timer 422 is reset when inspection is executed or when the battery 3 is replaced, and the counted value [Tb] becomes zero. In this embodiment, a person presses the push button switches 49A and 49C at the same time after the inspection and after the battery 3 is replaced. The control circuit 42 resets the inspection timer 422 when the pushbutton switches 49A and 49C are pressed simultaneously. Alternatively, the control circuit 42 may reset the inspection timer 422 when the control circuit 42 performs inspection. Alternatively, the control circuit 42 may reset the inspection timer 422 in the same manner as the power supply timer 421 when the battery 3 is replaced. After resetting, the clock value [Tb] increases again from zero.

Then, the control circuit 42 performs an automatic inspection process for automatically performing an inspection based on the measured values [Ta] and [Tb]. The control circuit 42 preliminarily stores each data of the inspection value [Tc] and the re-inspection value [Td], and compares the measured value [Ta] of the usage period Ta with the inspection value [Tc] and the non-inspection value [Tc]. A comparison process is performed between the measured value [Tb] of the period Tb and the rechecked value [Td]. The inspection value [Tc] is, for example, a value corresponding to 3 years or 5 years. The recheck value [Td] is a value corresponding to an arbitrary period of 6 months or less or 12 months or less, for example.

FIG. 2 is a time chart showing each operation of the power timer 421, inspection timer 422, notification, inspection, and battery replacement.

When the control circuit 42 starts supplying the emergency power, the control circuit 42 assumes that the charging of the battery 3 has started, and the power supply timer 421 starts measuring the usage period Ta (t0). When the power supply timer 421 starts counting the usage period Ta, the counted value [Ta] of the usage period Ta increases from zero with the passage of time. Then, when the measured value [Ta] reaches the check value [Tc] (t1), the control circuit 42 executes check E1. When the inspection E1 is completed, the inspection timer 422 is reset, and the inspection timer 422 starts measuring the non-inspection period Tb (t2). Then, when the measured value [Tb] reaches the recheck value [Td] (t3), the control circuit 42 executes check E2. When the inspection E2 is completed, the inspection timer 422 is reset, and the inspection timer 422 starts measuring the non-inspection period Tb (t4). If the battery 3 replacement process is not executed, the clock value [Tb] reaches the recheck value [Td] again, and the control circuit 42 executes the check. When the inspection is completed, the inspection timer 422 is reset, and the inspection timer 422 starts counting the non-inspection period Tb. Note that the inspection timer 422 is not reset if the inspections E1 and E2 are interrupted in the middle and the execution time of the inspections E1 and E2 is less than the specified time.

When the replacement process C1 for replacing the battery 3 is executed before the measured value [Tb] reaches the recheck value [Td], the control circuit 42 resets the power timer 421 and the check timer 422 respectively. (t5). When the replacement process C1 is completed, the control circuit 42 starts counting the usage period Ta by the power supply timer 421 (t6). Thereafter, operations similar to those described above are repeated.

That is, even if the lighting device 4 is not inspected by an inspector, the usage period Ta of the battery 3 has reached a predetermined time (for example, three years or five years determined by law). After that, the check is automatically performed. Therefore, the lighting device 4 can automatically perform inspection at an appropriate time in consideration of the life of the battery 3 and the like.

Also, the lighting device 4 periodically performs inspections until the battery 3 is replaced. At this time, the inspection cycle (equivalent to the re-inspection value [Td]) is longer than the time (equivalent to the inspection value [Tc]) from the start of timing of the usage period Ta to the execution of the first automatic inspection. Short ([Td] < [Tc]). Then, the lighting device 4 automatically performs the inspection when the battery 3 is not replaced after the first automatic inspection. Therefore, the lighting device 4 can automatically perform inspection at an appropriate time in consideration of the life of the battery 3 and the like. In addition, the control circuit 42 acquires the current time from the RTC, and according to a predetermined schedule, the inspection operation is performed during an inspection possible time zone (for example, a time zone when there is no one in the building where the disaster prevention lighting equipment 1 is installed). is preferably executed.

Further, the control circuit 42 may cause the notification circuit 43 to perform the notification operation before the measured value [Ta] of the usage period Ta reaches the check value [Tc]. In FIG. 2, the notification circuit 43 performs the notification operation at a timing earlier than the measured value [Ta] reaches the check value [Tc] by the grace period Te. That is, the inspection is performed at the timing when the grace period Te has passed since the notification circuit 43 performed the notification operation. For example, the control circuit 42 sets the length of the grace period Te to less than 12 months (for example, 2 months).

Further, the control circuit 42 may cause the notification circuit 43 to perform the notification operation before the measured value [Tb] of the unchecked period Tb reaches the rechecked value [Td]. In FIG. 2, the notification circuit 43 performs the notification operation at a timing earlier than the measured value [Tb] reaches the recheck value [Td] by the grace period Tf. That is, the inspection is performed when the grace period Tf has passed since the notification circuit 43 performed the notification operation. For example, the control circuit 42 sets the length of the grace period Tf to less than 12 months (for example, 2 months).

The notifying operation of the notifying circuit 43 is to notify that it is time for inspection by lighting or blinking the display element or by outputting a notifying sound from the piezoelectric sounder. The notification sound may be a buzzer sound of "beep" or a voice message such as "Please check." Further, the notification circuit 43 may perform notification using an identifier instead of notification using the display element and notification sound, or together with notification using the display element and notification sound. Therefore, the user can operate the wireless transmitter or push button switch 49A to perform the inspection before the automatic inspection is performed. In addition, the control circuit 42 acquires the current time from the RTC, and according to a predetermined schedule, the notification operation is performed during the time period when the notification is possible (for example, the time period when people are in the building where the disaster prevention lighting equipment 1 is installed). is preferably executed.

Also, the notification circuit 43 may perform notification using the light source 2 . In this case, the notification circuit 43 notifies by changing the lighting state of the light source 2 . For example, the notification circuit 43 periodically changes the light amount of the light source 2, periodically changes the light color of the light source 2, or causes the light source 2 to blink. Furthermore, the notification circuit 43 may perform visible light communication using the optical output of the light source 2 . In this case, a communication device (for example, a smartphone, a tablet terminal, or a dedicated terminal) that has received the light output of the light source 2 displays the content of the notification transmitted by visible light communication on the screen or notifies it by voice.

Alternatively, the elapsed time from the date of manufacture of the battery 3 may be used as the use period Ta described above. In this case, when the battery 3 is manufactured, a recording medium such as an ID chip or an IC tag storing battery information including the date of manufacture or the elapsed time from the date of manufacture is attached to the battery 3 . The control circuit 42 reads the battery information from the recording medium when the electrical connection with the battery 3 is established, and sets the initial value of the length (value) [Ta] of the usage period Ta.

Moreover, the elapsed time from the time when the battery 3 is attached to the disaster prevention lighting fixture 1 may be used as the use period Ta described above. In this case, the disaster prevention lighting fixture 1 has a mechanical switch (such as a microswitch or a limit switch) for detecting attachment of the battery 3 . The control circuit 42 can receive the output of the mechanical switch and determine whether or not the battery 3 is attached.

In addition, as the usage period Ta, even if it is the elapsed time from the timing obtained based on at least two of the time when charging of the battery 3 is started, the time when the battery 3 is manufactured, and the time when the battery 3 is installed. good.

Further, the inspection value [Tc] described above may be a value corresponding to a period shorter than a period (for example, 3 years or 5 years) during which inspections are not required as stipulated by laws and regulations. Therefore, even if a relatively long period of time elapses between the date of manufacture of the battery 3 and the installation of the disaster-prevention lighting fixture 1, the inspection is performed in consideration of the life of the battery 3. In this case, the inspection value [Tc] is determined primarily based on the variation in the time required from the date of manufacture of the battery 3 to the installation of the disaster prevention lighting fixture 1, investigated for a large number of batteries 3, and based on this variation. is preferably set.

(First modification)
FIG. 3 is a time chart showing each operation of the power timer 421, inspection timer 422, notification, inspection, and battery replacement of the first modification.

In the above-described embodiment, the control circuit 42 performs inspection immediately after the measured value [Ta] of the usage period Ta reaches the inspection value [Tc]. However, the control circuit 42 may perform inspection when the delay period Tg has elapsed after the time value [Ta] of the usage period Ta reaches the inspection value [Tc].

The length of the delay period Tg is, for example, a value randomly set within a predetermined range. In this case, the control circuit 42 has a random number generator (random number generation function). When the clock value [Ta] reaches the check value [Tc], the control circuit 42 obtains the length (value) of the delay period Tg corresponding to the random number generated by the random number generator, and the clock value [Ta] reaches the check value. Inspection is performed when the delay period Tg has elapsed after reaching [Tc].

Also, the length of the delay period Tg may be a value unique to the lighting device 4, for example. In this case, a value unique to the lighting device 4 is set as the length of the delay period Tg according to the serial number of the lighting device 4, the setting contents of the DIP switches, the setting signal sent from the outside, and the like.

Further, in the above-described embodiment, the control circuit 42 executes inspection immediately after the measured value [Tb] of the non-inspection period Tb reaches the re-inspection value [Td]. However, the control circuit 42 may perform inspection when the delay period Th has elapsed after the time value [Tb] of the non-inspection period Tb reaches the re-inspection value [Td].

The length of the delay period Th is, for example, a value randomly set within a predetermined range. In this case, the control circuit 42 has a random number generator (random number generation function). When the clock value [Tb] reaches the recheck value [Td], the control circuit 42 obtains the length of the delay period Th corresponding to the random number generated by the random number generator, and the clock value [Tb] reaches the recheck value [Td]. Td], the check is executed when the delay period Th has passed.

Also, the length of the delay period Th may be a value unique to the lighting device 4, for example. In this case, a value specific to the lighting device 4 is set as the length of the delay period Th according to the serial number of the lighting device 4, the setting contents of the DIP switches, the setting signal sent from the outside, and the like.

The remaining capacity of the battery 3 after the inspection is performed is less than the remaining capacity of the battery 3 before the inspection is performed. Therefore, if a power failure occurs in the external power source 9 after the inspection is performed, the lighting time of the light source 2 is shortened due to the insufficient capacity of the battery 3 . As a result, when a plurality of disaster prevention lighting fixtures 1 are installed, if the inspection execution timing of each of the plurality of disaster prevention lighting fixtures 1 is the same, the lighting time of the light source 2 in all the disaster prevention lighting fixtures 1 is shortened. Emergency lighting is not ensured.

On the other hand, in the first modified example, when a plurality of disaster prevention lighting fixtures 1 are installed, it is possible to mutually shift the timing at which each of the plurality of disaster prevention lighting fixtures 1 performs inspection. As a result, when a power failure of the external power source 9 occurs, all or most of the plurality of disaster prevention lighting fixtures 1 can sufficiently maintain the lighting time of the light source 2, and the plurality of disaster prevention lighting fixtures 1 are installed. Ensures emergency lighting.

(Second modification)
The control circuit 42 of the second modification may dim the light source 2 during inspection. In this case, the control circuit 42 causes the light source 2 to be steadily lit (for example, fully lit) when the external power supply 9 is cut off. During inspection, the control circuit 42 controls the light output of the light source 2 to be lower or higher than that during normal lighting, thereby dimming the light source 2 . The control circuit 42 can control the output of the lighting circuit 41 to dim the light source 2 . The dimming level at the time of dimming lighting is a dimming level less than 100% or a dimming level exceeding 100%.

If the dimming level is less than 100%, the time required for inspection will be longer, but the light output of the light source 2 will be smaller, so the lighting device 4 will not be in a situation that misleads people around the disaster prevention lighting fixture 1. It is possible to suppress the occurrence and carry out the inspection. That is, it is less likely that people around the disaster prevention lighting fixture 1 will mistake the lighting of the light source 2 during inspection for the lighting in an emergency.

For dimming levels above 100%, the time required for inspection is shorter, but the light output of the light source 2 is greater, so the lighting device 4 is not in a situation where people around the emergency lighting fixture 1 are misled. It is possible to suppress the occurrence and carry out the inspection. That is, it is less likely that people around the disaster prevention lighting fixture 1 will mistake the lighting of the light source 2 during inspection for the lighting in an emergency.

(Third modification)
The control circuit 42 of the second modification may perform inspection using a dummy load. In this case, the disaster prevention lighting fixture 1 includes a dummy load including a resistor in parallel with the light source 2, and a switch for switchably electrically connecting the output of the lighting circuit 41 to the light source 2 or the dummy load. The control circuit 42 electrically connects the output of the lighting circuit 41 to the light source 2 during normal operation and power failure.

When performing inspection, the control circuit 42 electrically connects the output of the lighting circuit 41 to the dummy load before performing the inspection. That is, the light source 2 does not turn on during inspection. Therefore, since it is possible to prevent the light source 2 of the disaster prevention lighting equipment 1 from turning on except at the time of power failure, the lighting device 4 performs inspection while suppressing the occurrence of a situation in which people around the disaster prevention lighting equipment 1 are misunderstood. be able to.

(Disaster prevention lighting equipment)
A configuration example of the disaster prevention lighting fixture 1 including the lighting device 4 will be described below with reference to FIG. 4 . The disaster prevention lighting fixture 1 of the present embodiment is attached to, for example, a building material such as a ceiling material or a wall material, and illuminates an evacuation passage or the like during a power outage.

The disaster prevention lighting fixture 1 comprises a main body 10, a cover 11 and a pair of supports 12, as shown in FIGS. 4A to 4C. The main body 10 is formed in a bottomed cylindrical shape with one bottom surface (lower surface) open. A pair of supports 12 are attached to the sides of the main body 10 . An annular flange 100 projecting outward is formed at the lower end of the main body 10 .

The pair of supports 12 are formed in the shape of elongated leaf springs. Each support 12 is fixed to the side surface of the main body 10 at one end in the longitudinal direction, and is configured to be able to bend (upward) toward the bottom surface (upper surface) of the main body 10 at the other end in the longitudinal direction. there is That is, the main body 10 is attached to the ceiling material such that the ceiling material is sandwiched between a pair of supports 12 inserted into embedding holes provided in the ceiling and a flange 100 provided on the lower end surface of the main body 10. Supported.

The cover 11 is formed in a disc shape having a larger outer diameter than the flange 100 of the main body 10, and has a circular window hole 110 in the center (see FIG. 4B). The lens 21 of the light source unit 2U is inserted through the window hole 110 . The cover 11 is configured to openably close the opening on the bottom surface of the main body 10 . A pair of mounting springs are attached to the cover 11 . The cover 11 is held by the main body 10 with the bottom surface of the main body 10 closed by the pair of mounting springs (see FIG. 4C).

Also, the light source unit 2U, the battery unit 3U, and the lighting unit 4U are housed inside the main body 10 (see FIG. 4B). However, the battery unit 3U is accommodated in the main body 10 so as to be removable and insertable through an opening in the bottom surface of the main body 10 .

The light source unit 2U includes an LED (Light Emitting Diode) module 20 and a lens 21 (see FIG. 4B). The LED module 20 has a substrate on which the above-described light source 2 is mounted, and emits white illumination light such as white, daylight white, or daylight color when a voltage is applied in the forward direction. The lens 21 is arranged in front of (below) the LED module 20 and collects light emitted from the LED module 20 .

The battery unit 3U includes the aforementioned battery 3 having a plurality of unit cells and a battery case housing the battery 3 therein. The battery 3 is, for example, a nickel-hydrogen battery or a nickel-cadmium battery. The battery case is made of an electrically insulating material such as synthetic resin and has a box shape, and accommodates a plurality of unit cells therein.

The lighting unit 4U has the lighting device 4 described above. Light emitted from the monitor lamp 48 of the lighting device 4 is emitted forward (downward) of the cover 11 through the first hole 111 provided in the cover 11 . The receiver 47 receives (receives) a wireless signal through the second hole 112 provided in the cover 11 . Light emitted from the display element of the notification circuit 43 is emitted forward (downward) of the cover 11 through the first hole 111 provided in the cover 11 . Each push button of the three push button switches 49A, 49B, and 49C is arranged so as to face one of the three operation holes 113 provided in the cover 11 (see FIG. 4B).

(Disaster prevention lighting system)
FIG. 5 shows the configuration of the disaster prevention lighting system B1 of this embodiment. The disaster prevention lighting system B<b>1 includes a plurality of disaster prevention lighting fixtures 1 .

In the disaster prevention lighting system B1, each of the plurality of disaster prevention lighting fixtures 1 has a communication function. The lighting device 4 further includes a communication circuit (not shown) connected to the communication line 8 , and the communication circuit transmits and receives signals via the communication line 8 . The communication circuit complies with a wired LAN (Local Area Network) such as Ethernet (registered trademark), or a standard such as RS-485 (for example, IEEE 802.3, RS-485, etc.) for signal transmission and Signal reception is preferred. Therefore, each lighting device 4 of the plurality of disaster prevention lighting fixtures 1 communicates via the communication line 8, and the control circuit 42 can exchange data with other lighting devices 4. FIG.

Then, each of the plurality of lighting devices 4 that can communicate via the communication line 8 communicates with other lighting devices 4 other than the own device, thereby setting the delay periods Tg and Th (see FIG. 3) of the own device respectively. adjust.

For example, each control circuit 42 of a plurality of lighting devices 4 receives data on inspection timing of other lighting devices 4 (next inspection timing, delay periods Tg, Th, etc.) from control circuits 42 of other lighting devices 4 . data). The acquisition timing is every predetermined time or before setting the delay period Tg or the delay time Th of the own device. Therefore, each control circuit 42 of a plurality of lighting devices 4 can set the delay periods Tg and Th of its own device so that the inspection timing of its own device does not overlap with the inspection timing of other lighting devices 4 .

Further, each control circuit 42 of a plurality of lighting devices 4 may transmit data regarding inspection timing of its own device (each data such as next inspection timing and delay periods Tg and Th) by multicast or broadcast. The transmission timing is, for example, when the delay period Tg or the delay period Th is set. In this case, each of the plurality of lighting devices 4 can easily acquire each data of the delay periods Tg and Th in the other lighting devices 4 .

Further, each control circuit 42 of a plurality of lighting devices 4 may periodically transmit a data request to other lighting devices 4 by multicast or broadcast. The control circuit 42 that has received the data request returns data regarding the inspection timing of its own device (each data such as the next inspection timing and the delay periods Tg and Th) to the lighting device 4 that has transmitted the data request.

Further, the communication circuit of the lighting device 4 may transmit and receive signals by wireless communication. For example, the communication circuit may transmit signals in compliance with standards such as wireless LAN, BLUETOOTH (registered trademark), or ZIGBEE (registered trademark) (for example, IEEE 802.11, IEEE 802.15.1, IEEE 802.15.4, etc.). and receive signals. In this case, the communication line 8 becomes unnecessary for the disaster prevention lighting system.

Therefore, each of the plurality of lighting devices 4 included in the disaster prevention lighting system B1 can grasp the inspection timing of the other lighting devices 4, and the inspection timing (delay periods Tg, Th) of the own device can be determined as the inspection timing of the other lighting device 4. It can be set flexibly so that it does not overlap with

(summary)
The lighting device (4) of the first aspect according to the embodiment described above comprises a lighting circuit (41), a power timer (421), and a control circuit (42). The lighting circuit (41) lights the light source (2) with emergency power supplied from the emergency power supply (3) when the external power supply (9) is stopped. The power timer (421) counts the usage period (Ta) of the emergency power source (battery 3). The control circuit (42) performs a check to discharge the emergency power supply (3) after the time value ([Ta]) of the usage period (Ta) reaches a predetermined check value ([Tc]).

The lighting device (4) described above can more reliably inspect the emergency power supply (3).

Further, in the lighting device (4) of the second aspect according to the embodiment, in the first aspect, the measured value ([Ta]) of the usage period (Ta) is is preferably the elapsed time from .

The lighting device (4) described above can more reliably inspect the emergency power supply (3) in consideration of the life of the emergency power supply (3).

Further, in the lighting device (4) of the third aspect according to the embodiment, in the first aspect, the measured value ([Ta]) of the period of use (Ta) is the elapsed time since the emergency power source (3) was manufactured. Time is preferred.

The lighting device (4) described above can more reliably inspect the emergency power supply (3) in consideration of the life of the emergency power supply (3).

Further, in the lighting device (4) of the fourth aspect according to the embodiment, in the first aspect, the measured value ([Ta]) of the period of use (Ta) is the elapsed time since the emergency power supply (3) was installed. Time is preferred.

The lighting device (4) described above can more reliably inspect the emergency power supply (3) in consideration of the life of the emergency power supply (3).

In addition, in the lighting device (4) of the fifth aspect according to the embodiment, in the first aspect, the measured value ([Ta]) of the usage period (Ta) is It is preferably the elapsed time from the timing obtained based on at least two of the time point, the time of manufacture of the emergency power supply (3), and the time of installation of the emergency power supply (3).

The lighting device (4) described above can more reliably inspect the emergency power supply (3) in consideration of the life of the emergency power supply (3).

Further, in the lighting device (4) of the sixth aspect according to the embodiment, in any one of the first to fifth aspects, the control circuit (42) controls the It is preferable to reset the time value ([Ta]) of the usage period (Ta).

The lighting device (4) described above can more reliably inspect the emergency power supply (3) in consideration of the life of the emergency power supply (3).

Further, in the lighting device (4) of the seventh aspect according to the embodiment, in any one of the first to sixth aspects, the control circuit (42) controls the usage period (Ta ) is preferably not reset ([Ta]).

The lighting device (4) described above can more reliably inspect the emergency power supply (3) in consideration of the life of the emergency power supply (3).

Moreover, in the lighting device (4) of the eighth aspect according to the embodiment, in any one of the first to seventh aspects, it is preferable that an inspection timer (422) is further provided. The inspection timer (422) counts the period after the inspection is completed as the non-inspection period (Tb). ) is reset ([Tb]). The control circuit (42) performs inspection again after the time value ([Tb]) of the non-inspection period (Tb) reaches a predetermined reinspection value ([Td]).

The lighting device (4) described above will automatically perform a check if the emergency power supply (3) is not replaced after the first automatic check. Therefore, the lighting device (4) can automatically perform inspection at an appropriate time considering the life of the emergency power supply (3).

Further, in the lighting device (4) of the ninth aspect according to the embodiment, in the eighth aspect, the recheck value ([Td]) is preferably smaller than the check value ([Tc]).

The lighting device (4) described above can automatically perform inspection at an appropriate time in consideration of the life of the battery (3).

Further, in the lighting device (4) of the tenth aspect according to the embodiment, in the eighth or ninth aspect, the control circuit (42) causes the measured value ([Tb]) of the non-inspection period (Tb) to reappear. It is preferable to perform the check again when the delay period (Th) has elapsed after reaching the check value ([Td]).

The lighting device (4) described above can ensure operation in an emergency when a plurality of lighting devices (4) are installed.

Further, in the lighting device (4) of the eleventh aspect according to the embodiment, in any one of the first to tenth aspects, the control circuit (42) controls the time value ([Ta ]) reaches the check value ([Tc]) and the check is preferably performed when the delay period (Tg) has elapsed.

The lighting device (4) described above can ensure operation in an emergency when a plurality of lighting devices (4) are installed.

Further, in the lighting device (4) of the twelfth aspect according to the embodiment, in the tenth or eleventh aspect, the control circuit (42) selects one of a plurality of values within a predetermined range before executing the inspection. It is preferable to choose one value as the length of the delay period (Tg, Th).

The lighting device (4) described above can further ensure operation in an emergency when a plurality of lighting devices (4) are installed.

Further, in the lighting device (4) of the thirteenth aspect according to the embodiment, in the tenth or eleventh aspect, the length of the delay period (Tg, Th) is a value unique to the lighting device (4). Preferably.

The lighting device (4) described above can further ensure operation in an emergency when a plurality of lighting devices (4) are installed.

Further, in the lighting device (4) of the fourteenth aspect according to the embodiment, in any one of the first to thirteenth aspects, a notification circuit ( 43). The control circuit (42) operates the notification circuit (43) before the time value ([Ta]) of the period of use (Ta) reaches the inspection value ([Tc]).

The lighting device (4) described above can notify a user or the like that it is time to perform an inspection.

Further, the lighting device (4) of the fifteenth aspect according to the embodiment is, in any one of the eighth to tenth aspects, a notification circuit ( 43). The control circuit (42) operates the notification circuit (43) before the time value ([Tb]) of the non-inspection period (Tb) reaches the re-inspection value ([Td]).

The lighting device (4) described above can notify a user or the like that it is time to perform an inspection.

Further, in the lighting device (4) of the sixteenth aspect according to the embodiment, in the fourteenth or fifteenth aspect, the notification circuit (43) can notify by changing the lighting state of the light source (2). preferable.

The lighting device (4) described above can notify a user or the like that it is time to perform an inspection.

Further, in the lighting device (4) of the seventeenth aspect according to the embodiment, in any one of the first to sixteenth aspects, the control circuit (42), as inspection, controls the lighting circuit (41) to light source ( It is preferable to carry out an inspection for dimming 2).

The above-described lighting device (4) can perform inspections while suppressing the occurrence of situations that mislead people around.

Further, in the lighting device (4) of the eighteenth aspect according to the embodiment, in any one of the first to sixteenth aspects, the control circuit (42) supplies emergency power to the dummy load as inspection. It is preferable to perform a check that

The above-described lighting device (4) can perform inspections while suppressing the occurrence of situations that mislead people around.

A disaster prevention lighting fixture (1) of a nineteenth aspect according to the embodiment includes the lighting device (4) of any one of the first to eighteenth aspects, a light source (2), and an emergency power source (3). , a body (10). The light source (2) is lit by the output of the lighting device (4). An emergency power supply (3) supplies emergency power for lighting the light source (2) to the lighting device (4). The main body (10) is fitted with a lighting device (4), a light source (2) and an emergency power source (3).

The disaster-prevention lighting fixture (1) described above can more reliably inspect the emergency power source (3).

Moreover, the disaster prevention lighting system (B1) of the twentieth aspect according to the embodiment includes the plurality of disaster prevention lighting fixtures (1) of the nineteenth aspect.

The disaster prevention lighting system (B1) described above can more reliably inspect the emergency power supply (3).

1 disaster prevention lighting equipment 2 light source 3 battery (emergency power supply)
4 lighting device 9 external power supply 10 main body 40 charging circuit 41 lighting circuit 42 control circuit 43 notification circuit 421 power supply timer 422 inspection timer B1 disaster prevention lighting system Ta use period Tb non-inspection period Tg delay period Th delay period [Ta] measured value [Tb ] Clock value [Tc] Check value [Td] Recheck value

Claims (21)

a lighting circuit that lights the light source with emergency power supplied from the emergency power supply when the external power supply is stopped;
a power timer for timing the usage period of the emergency power source;
a control circuit for performing an inspection to discharge the emergency power supply after the time value of the usage period reaches a predetermined inspection value;
with
The timed value of the usage period is the elapsed time after charging of the emergency power supply is started.
lighting device. a lighting circuit that lights the light source with emergency power supplied from the emergency power supply when the external power supply is stopped;
a power timer for timing the usage period of the emergency power source;
a control circuit for executing an inspection to discharge the emergency power supply after the time value of the usage period reaches a predetermined inspection value;
with
The timed value of the period of use is the elapsed time from the time of manufacture of the emergency power supply.
lighting device. The control circuit does not reset the period-of-use time value when the check is performed.
The lighting device according to claim 1 or 2. a lighting circuit that lights the light source with emergency power supplied from the emergency power supply when the external power supply is stopped;
a power timer for timing the usage period of the emergency power source;
a control circuit for executing an inspection to discharge the emergency power supply after the time value of the usage period reaches a predetermined inspection value;
with
The control circuit does not reset the period-of-use time value when the check is performed.
lighting device. The timed value of the usage period is the elapsed time after charging of the emergency power supply is started.
The lighting device according to claim 4 . The timed value of the period of use is the elapsed time from the time of manufacture of the emergency power supply.
The lighting device according to claim 4. The timed value of the period of use is the elapsed time from the installation of the emergency power supply.
The lighting device according to claim 4. The control circuit resets the usage period time value when the emergency power supply is replaced.
The lighting device according to any one of claims 1 to 7 . an inspection timer that counts a period after the completion of the inspection as a non-inspection period, and resets the counted value of the non-inspection period when the inspection is performed again before the emergency power supply is replaced; further prepared,
The control circuit executes the inspection again after the time value of the non-inspection period reaches a predetermined reinspection value.
The lighting device according to any one of claims 1 to 8. The recheck value is less than the check value
The lighting device according to claim 9 . The control circuit re-executes the inspection when a delay period has elapsed after the time value of the non-inspection period reached the re-inspection value.
The lighting device according to claim 9 or 10. The control circuit executes the inspection when a delay period has elapsed after the time value of the period of use reaches the inspection value.
The lighting device according to any one of claims 1 to 11. The control circuit randomly selects one of a plurality of values within a predetermined range as the length of the delay period before performing the check.
The lighting device according to claim 11 or 12. The length of the delay period is a value specific to the lighting device
The lighting device according to claim 11 or 12. Further comprising a notification circuit that notifies with at least one of light, sound, and an identifier,
The control circuit operates the notification circuit before the time value of the usage period reaches the inspection value.
The lighting device according to any one of claims 1 to 14. Further comprising a notification circuit that notifies with at least one of light, sound, and an identifier,
The control circuit operates the notification circuit before the time value of the non-inspection period reaches the re-inspection value.
The lighting device according to any one of claims 9 to 11. The notification circuit notifies by changing the lighting state of the light source
The lighting device according to claim 15 or 16. The control circuit performs, as the inspection, an inspection that causes the lighting circuit to light the light source with dimming.
The lighting device according to any one of claims 1 to 17. The control circuit performs, as the inspection, an inspection of supplying the emergency power to a dummy load.
The lighting device according to any one of claims 1 to 17. The lighting device according to any one of claims 1 to 19;
a light source that is lit by the output of the lighting device;
an emergency power supply that supplies emergency power for lighting the light source to the lighting device;
a body to which the lighting device, the light source, and the emergency power supply are attached;
A disaster prevention lighting fixture characterized by: Equipped with a plurality of disaster prevention lighting fixtures according to claim 20
A disaster prevention lighting system characterized by:

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