Lighting systems, disaster prevention lighting equipment, and disaster prevention lighting systems

Abstract

To provide a lighting system capable of making people aware of the degree of battery deterioration including the battery deterioration caused by interruption of external power supply, a disaster prevention lighting apparatus, and a disaster prevention lighting system.SOLUTION: A lighting system 4A includes a lightening circuit 41, a discharge circuit 5, and a storage circuit 422. The lightening circuit 41 executes emergency lighting to lighten a light source 2 with the emergency power supplied from a battery 3 when the external power supply 9 is stopped. The discharge circuit 5 causes the battery 3 to discharge at a time of executing a check the battery 3. The storage circuit 422 stores the execution status of the emergency lighting and the check.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a lighting system, a disaster prevention lighting device, and a disaster prevention lighting system. [Background technology]

[0002] The conventional emergency lighting device described in Patent Document 1 includes a lighting circuit, a secondary battery, a charging circuit, and an inspection unit. The secondary battery supplies power to the lighting circuit during a power outage, and the lighting circuit turns on the light source. Furthermore, when the inspection unit receives an instruction to start an inspection during a periodic inspection, it cuts off the charging current to the secondary battery, turns on the light source by supplying power from the secondary battery to the lighting circuit, and begins inspecting the secondary battery. The inspection unit measures the voltage value across the secondary battery as the battery voltage value, and measures the time required from the start of the inspection for the battery voltage value to reach a predetermined value as the duration. The inspection unit evaluates whether or not there is an abnormality in the secondary battery based on the length of the measured duration and presents the evaluation result. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-113877 Summary of the Invention [Problem to be solved by the invention]

[0004] A conventional lighting system provided in the above-mentioned emergency lighting device may be electrically connected to an external power source (normal power source) via a switch. When the switch is on, the lighting system is supplied with power from the external power source, and when the switch is off, the lighting system is no longer supplied with power from the external power source. When the switch cuts off the external power source, the lighting system discharges a battery (secondary battery) to perform emergency lighting. Generally, battery degradation progresses even when the battery is discharged. Therefore, every time the switch cuts off the external power source, the battery deteriorates.

[0005] However, conventional lighting systems have not been able to make people aware of the deterioration of the battery that occurs when the external power supply is cut off by the switch.

[0006] The object of the present disclosure is to provide a lighting system, a disaster prevention lighting device, and a disaster prevention lighting system that can enable people to recognize the degree of battery deterioration, including battery deterioration caused by the interruption of external power supply. [Means for solving the problem]

[0007] A lighting system according to one aspect of the present disclosure includes a lighting circuit, a discharge circuit, and a recording circuit. The lighting circuit performs emergency lighting by lighting a light source using emergency power supplied from a battery when an external power source, such as a commercial power system, is shut down. The discharge circuit discharges the battery by lighting the light source while power from the external power source is cut off during an inspection of the battery. The recording circuit records the execution status of the emergency lighting and the inspection. The recording circuit records the number of times the light source is turned off during the execution of the emergency lighting and the inspection as the execution status of the emergency lighting and the inspection. A lighting system according to one aspect of the present disclosure includes a lighting circuit, a discharge circuit, and a recording circuit. The lighting circuit performs emergency lighting by lighting a light source using emergency power supplied from a battery when an external power source, such as a commercial power system, is stopped. The discharge circuit discharges the battery when an inspection is performed to check the battery. The recording circuit records the execution status of the emergency lighting and the inspection. The discharge circuit discharges the battery when the inspection is performed to turn on the light source. The recording circuit records the number of times the light source is turned off when the emergency lighting and the inspection are performed, as the execution status of the emergency lighting and the inspection. A lighting system according to one aspect of the present disclosure includes a lighting circuit, a discharge circuit, and a recording circuit. The lighting circuit performs emergency lighting by lighting a light source using emergency power supplied from a battery when an external power source, such as a commercial power system, is stopped. The discharge circuit discharges the battery when an inspection is performed to check the battery. The recording circuit records the execution status of the emergency lighting and the inspection. If the execution status of the emergency lighting and the inspection recorded in the recording circuit reaches a predetermined status, the lighting circuit flashes the light source at least when the emergency lighting is performed. A lighting system according to one aspect of the present disclosure includes a lighting circuit, a discharge circuit, and a recording circuit. The lighting circuit performs emergency lighting by lighting a light source using emergency power supplied from a battery when an external power source, such as a commercial power system, is shut off. The discharge circuit discharges the battery by turning on the light source while power from the external power source is cut off during an inspection of the battery. The recording circuit records the execution status of the emergency lighting and the inspection. If the execution status of the emergency lighting and the inspection recorded in the recording circuit reaches a predetermined status, the lighting circuit blinks the light source at least when executing the emergency lighting.

[0008] A disaster prevention lighting device according to one aspect of the present disclosure includes the above-described lighting system, a light source that is turned on by an output of the lighting system, a battery that supplies emergency power to the lighting system for turning on the light source, and a main body to which the lighting system, the light source, and the battery are attached.

[0009] A disaster prevention lighting system according to one aspect of the present disclosure includes a plurality of the above-described disaster prevention lighting devices. [Effects of the Invention]

[0010] As described above, the present disclosure has the effect of allowing a person to recognize the degree of battery degradation, including battery degradation caused by an external power supply being cut off. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a block diagram showing the configuration of a disaster prevention lighting device including a lighting system according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is a block diagram showing the configuration of a recording circuit included in the lighting system. [Figure 3] FIG. 3 is a time chart showing a first example of the operation of the lighting system including the lighting system. [Figure 4] FIG. 4 is a time chart showing a second example of the operation of the lighting system. [Figure 5] FIG. 5 is a block diagram showing another configuration of the recording circuit included in the lighting system. [Figure 6] FIG. 6 is a time chart showing a third example of the operation of the lighting system. [Figure 7] FIG. 7 is a block diagram showing a schematic configuration of the lighting system. [Figure 8] FIG. 8 is a block diagram showing a first modified example of the lighting system. [Figure 9] FIG. 9 is a block diagram showing a second modified example of the lighting system. [Figure 10] FIG. 10 is a block diagram showing a third modified example of the lighting system. [Figure 11] 11A, 11B, and 11C are top, bottom, and side views of the same disaster prevention lighting fixture. [Figure 12] FIG. 12 is a block diagram showing the configuration of a disaster prevention lighting system according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0012] The drawings described in the following embodiments are schematic diagrams, and the ratios of the sizes and thicknesses of the components do not necessarily reflect the actual dimensional ratios. 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 are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0013] (1) Overview of disaster prevention lighting equipment The disaster prevention lighting device 1 according to the embodiment is a recessed emergency light that is recessed into a recessed hole in the ceiling of a building. However, the disaster prevention lighting device is not limited to a recessed emergency light. The disaster prevention lighting device may be an exposed emergency light that is directly attached to the ceiling, or a disaster prevention lighting device other than an emergency light, such as an emergency exit light.

[0014] The following embodiments generally relate to a lighting system, a disaster prevention lighting device, and a disaster prevention lighting system. More specifically, the following embodiments relate to a lighting system, a disaster prevention lighting device, and a disaster prevention lighting system that turn on a light source in an emergency.

[0015] 1 shows a block diagram of a disaster prevention lighting device 1 of this embodiment. The disaster prevention lighting device 1 includes a light source 2, a battery 3, a lighting device 4, and a discharge circuit 5. The lighting device 4 corresponds to a lighting system 4A of this embodiment.

[0016] The light source 2 has a plurality of solid-state light-emitting elements. For example, the light source 2 has an LED array in which a plurality of LEDs (Light Emitting Diodes) are connected in series as the plurality of solid-state light-emitting elements. Note that the light source 2 is not limited to a configuration having LEDs as the solid-state light-emitting elements. The light source 2 may have other solid-state light-emitting elements, such as organic electroluminescence (OEL) or semiconductor laser diodes (laser diodes, LD).

[0017] Battery 3 is a rechargeable storage battery (secondary battery) and corresponds to an emergency power supply. Battery 3 is not limited to a specific type of secondary battery, but is preferably, for example, a nickel-metal hydride battery or a nickel-cadmium battery. When a power outage detection circuit 46 (described later) detects a power outage in external power supply 9, battery 3 can output emergency power by discharging the stored charge. In other words, the power supplied from battery 3 when power outage detection circuit 46 detects a power outage in external power supply 9 is emergency power.

[0018] 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 an alarm circuit 43 (alarm unit). The lighting device 4 preferably further includes a DC power supply circuit 45, a power outage detection circuit 46, a receiving unit 47, a monitor lamp 48, and a push button switch 49. The lighting device 4 of this embodiment includes two push button switches 49, which are referred to as push button switches 49A and 49B when distinguished from each other.

[0019] The DC power supply circuit 45 is preferably configured to be a switching power supply circuit such as a flyback converter, and converts the AC voltage supplied from an external power supply (e.g., a commercial power system) 9 into a DC voltage lower than the effective value of the AC voltage. The charging circuit 40 is preferably configured to operate when power is supplied from the external power supply 9, and to pass a 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 it to the light source 2.

[0020] A switch SW1, such as a breaker, is provided in the electrical path between the external power source 9 and the lighting device 4. The switch SW1 has contacts that connect and disconnect the electrical path. When the switch SW1 is turned on, the electrical path between the external power source 9 and the lighting device 4 is connected, and when the switch SW1 is turned off, the electrical path between the external power source 9 and the lighting device 4 is disconnected.

[0021] The power failure detection circuit 46 is configured to detect a power failure in the external power supply 9 from the output voltage of the DC power supply circuit 45 and notify the control circuit 42. The external power supply 9 is a 100V or 200V commercial power system. The power failure detection circuit 46 detects a power failure if the external power supply 9 stops while the switch SW1 is on. Furthermore, the power failure detection circuit 46 detects a power failure if the switch SW1 is off even if the external power supply 9 is normal.

[0022] The monitor lamp 48 is formed, for example, by a light-emitting diode that emits green light. The receiver 47 is configured to receive a wireless signal using infrared rays as a communication medium, demodulate a transmission frame from the received wireless signal, and pass the signal to the control circuit 42. This wireless signal is transmitted from a wireless transmitter operated by an inspector or the like who performs the inspection.

[0023] The purpose of the inspection is to forcibly operate the discharge circuit 5 to discharge the battery 3 and at least check the degree of deterioration of the battery 3. Inspections include periodic inspections and user inspections. Periodic inspections are carried out at legally specified intervals, and are intended to check whether the floor illumination provided by the light source 2 is sufficient by forcibly operating the lighting circuit 41 and discharging the battery 3 for a specified period of time or more. User inspections are intended to forcibly operate the lighting circuit 41 and discharge the battery 3 for a short period of time to check the degree of deterioration of the battery 3.

[0024] In Fig. 1, the discharge circuit 5 is made up of a lighting circuit 41 and a light source 2. That is, the lighting circuit 41 also serves as part of the discharge circuit 5. Therefore, the lighting device 4 does not need to add a dedicated discharge circuit for inspection, and the configuration can be simplified.

[0025] The alarm circuit 43 is an alarm unit having an alarm function, and includes, for example, a monochrome display element 431, a sound generator 432 such as a piezoelectric sounder, and a drive circuit 433 that drives the display element 431 and the sound generator 432. The drive circuit 433 drives the display element 431 to emit light and drives the sound generator 432 to emit sound. The alarm circuit 43 may use the monitor lamp 48 as a display element.

[0026] The control circuit 42 is configured to have the functions of a lighting control circuit 421, a recording circuit 422, and a notification control circuit 423.

[0027] The control circuit 42 operates by receiving power from an external power source 9, a battery 3, or a control power source. The control circuit 42 preferably includes a computer system. The computer system is primarily composed of a processor and memory as hardware. At least a portion of the functions of the control circuit 42 in the present disclosure are realized by the processor executing a program stored in the memory of the computer system. The program may be pre-stored in the memory of the computer system, provided via a telecommunications line, or provided by being stored on a non-transitory recording medium readable by the computer system, such as a memory card, an optical disk, or a hard disk drive. The processor of the computer system is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large-scale integrated circuit (LSI). The integrated circuits, such as ICs and LSIs, are referred to by different names depending on the degree of integration, and include integrated circuits called system LSIs, very large-scale integration (VLSI), or ultra-large-scale integration (ULSI). Furthermore, a field-programmable gate array (FPGA), which is programmed after the LSI is manufactured, or a logic device capable of reconfiguring the connections within the LSI or the circuit partitions within the LSI, can also be employed as a processor. Multiple electronic circuits may be integrated into a single chip or distributed across multiple chips. Multiple chips may be integrated into a single device or distributed across multiple devices. The computer system referred to here includes a microcontroller having one or more processors and one or more memories. Therefore, a microcontroller may also be composed of one or more electronic circuits, including a semiconductor integrated circuit or a large-scale integrated circuit.

[0028] The lighting control circuit 421 operates the charging circuit 40 when the power outage detection circuit 46 does not detect a power outage. Furthermore, when the power outage detection circuit 46 detects a power outage, the lighting control circuit 421 stops the charging circuit 40 and supplies emergency power from the battery 3 to the lighting circuit 41. The lighting circuit 41, which has received emergency power, performs emergency lighting, lighting the light source 2 with the emergency power. Furthermore, in emergency lighting, regardless of the charge state 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, fully lit). Furthermore, if the charge amount of the charging circuit 40 is sufficiently smaller than the discharge amount to the lighting circuit 41 (for example, trickle charging), the charging circuit 40 may not be stopped and the lighting circuit 41 may be operated to steadily light the light source 2 (for example, fully lit) in emergency lighting.

[0029] Furthermore, when the push button switch 49A is pressed or when an inspection signal transmission frame is received from the receiver 47, the lighting control circuit 421 determines that an inspection command has been received from an inspector or the like. Then, if the battery 3 is fully charged, the lighting control circuit 421 performs an inspection. When performing an inspection, the lighting control circuit 421 stops the charging circuit 40 for a predetermined specified time and causes the battery 3 to supply inspection power to the lighting circuit 41. When supplied with inspection power, the lighting circuit 41 uses the inspection power to light the light source 2. In other words, when performing an inspection, the lighting control circuit 421 turns on the light source 2 for inspection. If the battery 3 is not fully charged, the lighting control circuit 421 first operates the charging circuit 40 to fully charge the battery 3, then stops the charging circuit 40 for a predetermined specified time and operates the lighting circuit 41 to discharge the battery 3, thereby performing inspection lighting. Furthermore, if the battery 3 is not fully charged, the lighting control circuit 421 may operate the charging circuit 40 to charge the battery 3 while operating the lighting circuit 41 for a predetermined period of time to discharge the battery 3. Furthermore, during inspection lighting, the charging circuit 40 may be stopped and the lighting circuit 41 may be operated to steadily light the light source 2 (for example, fully lit) regardless of the state of charge of the battery 3. Furthermore, during inspection 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 charging circuit 40 may not be stopped and the lighting circuit 41 may be operated to steadily light the light source 2 (for example, fully lit).

[0030] When the push button switch 49B is pressed, the lighting control circuit 421 stops the operation of the charging circuit 40, supplies the discharged power of the battery 3 to the lighting circuit 41, and performs emergency lighting confirmation by operating the lighting circuit 41 for several seconds using the discharged power of the battery 3.

[0031] The discharge circuit 5 is composed of a lighting circuit 41 and a light source 2. The lighting control circuit 421 controls the lighting circuit 41 when inspection is being performed, and the lighting circuit 41 uses inspection power discharged from the battery 3 to light the light source 2 for inspection, thereby discharging the battery 3. The discharge circuit may be configured to consume the inspection power discharged from the battery 3 through a resistor, or a control power supply. In this case, the inspection power of the battery 3 is consumed even if the light source 2 is not turned on for inspection during inspection.

[0032] The recording circuit 422 records the execution status of the emergency lighting and inspection. Details of the execution status of the emergency lighting and inspection recorded in the recording circuit 422 will be described later.

[0033] The notification control circuit 423 controls the notification circuit 43. The notification control circuit 423 causes the notification circuit 43 to notify the timing of inspection, the timing of replacing the battery 3, the inspection results, and the like.

[0034] The notification circuit 43 notifies the user when to perform an inspection, when to replace the battery 3, and the inspection results. The drive circuit 433 notifies the user by lighting or blinking the display element 431 depending on the content of the notification. The drive circuit 433 may also notify the user by outputting a sound from the sound output unit 432. The sound output from the sound output unit 432 may be a message, a buzzer sound, or the like.

[0035] (2) Recording circuit When the power outage detection circuit 46 detects a power outage, the lighting control circuit 421 controls the lighting circuit 41 to perform emergency lighting. Because the battery 3 is discharged each time emergency lighting is performed, the battery 3 deteriorates each time emergency lighting is performed. The lighting control circuit 421 detects a power outage when the external power source 9 is stopped while the switch SW1 is on, or when the switch SW1 is turned off even when the external power source 9 is normal. In other words, the battery 3 deteriorates each time the switch SW1 shuts off the external power source 9. For example, if the disaster prevention lighting device 1 is installed in a store or the like, employees may turn off the switch SW1 when they go home and turn on the switch SW1 when they arrive at work the next day. In this type of usage, the switch SW1 is turned off frequently, which accelerates the rate of deterioration of the battery 3.

[0036] Therefore, the recording circuit 422 records the execution status of the emergency lighting and inspection. Preferably, the recording circuit 422 is mainly composed of a processor and a memory as hardware. At least a part of the function of the recording circuit 422 in the present disclosure is realized by the processor executing a program recorded in the memory of a computer system. For example, in the recording circuit 422, the processor executes the program to generate data on the execution status of the emergency lighting and inspection, and stores the generated data on the execution status of the emergency lighting and inspection in the memory. Preferably, the memory is a rewritable non-volatile memory such as an EEPROM (Electrically Erasable Programmable Read Only Memory) or a flash memory.

[0037] The power outage detection circuit 46 detects a power outage if the external power supply 9 stops while the switch SW1 is on. The power outage detection circuit 46 also detects a power outage if the switch SW1 is turned off even if the external power supply 9 is normal. The recording circuit 422 records not only emergency lighting caused by the external power supply 9 stopping, but also the execution status of emergency lighting caused by the switch SW1 being turned off. Therefore, by referring to the recorded data in the recording circuit 422, the lighting device 4 can make a person aware of the degree of deterioration of the battery 3, including the deterioration of the battery 3 caused by the external power supply 9 being cut off by the switch SW1.

[0038] (2-1) Example 1 The recording circuit 422 of the first example records the number of times emergency lighting and inspection have been performed as the execution status of emergency lighting and inspection. Therefore, the recording circuit 422 includes a counter 42a as shown in FIG. 2. The counter 42a counts the number of times emergency lighting and inspection have been performed. Note that it is preferable that at least a part of the function of the counter 42a in the present disclosure be realized by a processor executing a program recorded in the memory of a computer system.

[0039] Specifically, the counter 42a increments the count value each time the lighting control circuit 421 executes emergency lighting and each time the lighting control circuit 421 executes inspection. That is, the counter 42a counts the total number of times emergency lighting has been executed and the total number of times inspection has been executed.

[0040] When the count value of counter 42a (number of times emergency lighting and inspection have been performed) reaches a predetermined number of notifications, notification control circuit 423 causes notification circuit 43 to notify that it is time to perform inspection. The number of notifications may be, for example, about 10 to several tens of times. Here, assuming that the life of battery 3 is 10 years and inspections are performed twice a year, it is preferable that the number of notifications be 20 (2 times x 10 years).

[0041] Furthermore, when the count value of counter 42a (the number of times emergency lighting and inspection have been performed) reaches a predetermined number of replacements, notification control circuit 423 causes notification circuit 43 to notify that it is time to replace battery 3. The number of replacements is greater than the number of notifications, for example, about several tens to 100 times.

[0042] Fig. 3 is an example of a three-day time chart for a lighting system including disaster prevention lighting fixture 1 installed in a store or the like. The time chart in Fig. 3 shows the states of external power supply 9 and switch SW1, the execution status of inspection and emergency lighting by lighting device 4, and the trigger signal (counter trigger) of counter 42a. Time t1 is 8:00 on the first day, time t2 is 8:00 p.m. on the first day, time t3 is 8:00 a.m. on the second day, time t4 is 8:00 p.m. on the second day, time t5 is 8:00 a.m. on the third day, time t6 is 8:00 p.m. on the third day, and time t7 is 8:00 a.m. on the fourth day.

[0043] An employee who arrives at the store on the first day switches the switch SW1 from the off state to the on state at time t1. Because the external power supply 9 is normal, charging of the battery 3 begins at time t1. The employee who has finished work on the first day switches the switch SW1 from the on state to the off state at time t2 and goes home. When the switch SW1 is turned off at time t2, the power outage detection circuit 46 detects a power outage, and the lighting control circuit 421 controls the lighting circuit 41 to perform emergency lighting. The control circuit 42 generates a counter trigger when emergency lighting is performed (time t2), and the counter 42a increments the count value.

[0044] An employee who arrives at the store on the second day switches the switch SW1 from the off state to the on state at time t3. Because the external power supply 9 is normal, charging of the battery 3 begins at time t3. The employee who has finished work on the second day switches the switch SW1 from the on state to the off state at time t4 and goes home. When the switch SW1 is turned off at time t4, the power outage detection circuit 46 detects a power outage, and the lighting control circuit 421 controls the lighting circuit 41 to perform emergency lighting. The control circuit 42 generates a counter trigger when emergency lighting is performed (time t4), and the counter 42a increments the count value.

[0045] An employee who arrives at the store on the third day switches the switch SW1 from the OFF state to the ON state at time t5. Because the external power supply 9 is normal, charging of the battery 3 begins at time t5. At time t11 between times t5 and t6 on the third day, the external power supply 9 stops, and the power outage detection circuit 46 detects the power outage. When the power outage detection circuit 46 detects the power outage, the lighting control circuit 421 controls the lighting circuit 41 to perform emergency lighting. When emergency lighting is performed, the control circuit 42 generates a counter trigger (time t11), and the counter 42a increments the count value.

[0046] Inspection begins at time t12, which is after time t6 on the third day. When inspection begins, the control circuit 42 generates a counter trigger (time t12), and the counter 42a increments the count value.

[0047] In this way, the counter 42a can count the total number of times that emergency lighting has been performed and the total number of times that inspection has been performed.

[0048] (2-2) Second Example In the second example, the recording circuit 422 records the number of times the light source 2 is turned off during emergency lighting and inspection as the execution status of emergency lighting and inspection. Therefore, the recording circuit 422 includes a counter 42a as shown in FIG. 2. The counter 42a counts the number of times the light source 2 is turned off during emergency lighting and inspection. The lighting control circuit 421 controls the lighting circuit 41 during emergency lighting, thereby discharging the battery 3. Furthermore, the lighting control circuit 421 controls the lighting circuit 41 during inspection, thereby discharging the battery 3 by lighting for inspection. While emergency lighting or inspection is being performed, the remaining capacity of the battery 3 gradually decreases. When the remaining capacity of the battery 3 falls below a predetermined value, the load current supplied from the lighting circuit 41 to the light source 2 becomes zero, and the light source 2 is turned off. Therefore, the control circuit 42 can determine whether the battery 3 has been turned off by monitoring the load current. When the control circuit 42 determines that the battery 3 has been turned off during emergency lighting or inspection, the counter 42a increments the count value. That is, the counter 42a counts the number of times the battery 3 has been turned off during emergency lighting or inspection.

[0049] When the count value (number of times the light has been turned off) of counter 42a reaches a predetermined number of notifications, notification control circuit 423 causes notification circuit 43 to notify that it is time to perform inspection. The number of notifications may be, for example, about 10 to several tens of times. Here, if the life of battery 3 is 10 years and inspections are performed twice a year, it is preferable that the number of notifications be 20 (2 times x 10 years).

[0050] Furthermore, when the count value (number of times the light has been turned off) of counter 42a reaches a predetermined number of replacement times, notification control circuit 423 causes notification circuit 43 to notify that it is time to replace battery 3. The number of replacement times is greater than the number of notifications, for example, about several tens to 100 times.

[0051] 4 is an example of a three-day time chart of a lighting system including disaster prevention lighting device 1 installed in a store, etc. The timing at which a counter trigger occurs in the time chart of FIG. 4 is different from the timing at which a counter trigger occurs in the time chart of FIG.

[0052] At time t2, an employee who has finished work on the first day switches switch SW1 from the on state to the off state and goes home. When switch SW1 is turned off at time t2, the power outage detection circuit 46 detects the power outage, and the lighting control circuit 421 controls the lighting circuit 41 to perform emergency lighting. When emergency lighting begins, the light source 2 lights up and the remaining capacity of the battery 3 gradually decreases. Emergency lighting is performed for a period T1 after time t2, and at time t21 the load current becomes zero and the light source 2 is turned off. When the light source 2 is turned off, the control circuit 42 generates a counter trigger (time t21), and the counter 42a increments the count value.

[0053] At time t4, the employee who has finished work on the second day switches the switch SW1 from the on state to the off state and goes home. When the switch SW1 is turned off at time t4, the power outage detection circuit 46 detects the power outage, and the lighting control circuit 421 controls the lighting circuit 41 to execute emergency lighting. When emergency lighting begins, the light source 2 is turned on, and the remaining capacity of the battery 3 gradually decreases. Emergency lighting is executed for a period T2 after time t4, and at time t22, the load current becomes zero and the light source 2 is turned off. When the light source 2 is turned off, the control circuit 42 generates a counter trigger (time t22), and the counter 42a increments the count value.

[0054] Furthermore, emergency lighting, which started at time t11 on the third day, is executed for a period T3 after time t11. However, because the emergency lighting ended before the load current reached zero, light source 2 is not turned off and control circuit 42 does not generate a counter trigger. Furthermore, inspection, which started at time t12 on the third day, is executed for a period T4 after time t12. However, because the inspection ended before the load current reached zero, light source 2 is not turned off and control circuit 42 does not generate a counter trigger.

[0055] In this way, the counter 42a can count the number of times the light source 2 is turned off during emergency lighting and inspection. In this case, when emergency lighting is performed due to the external power source 9 being stopped, or when inspection is being performed, it is rare that the discharge of the battery 3 continues until the load current becomes zero. On the other hand, when emergency lighting is performed due to the switch SW1 being turned off, the discharge of the battery 3 often continues until the load current becomes zero. Therefore, by having the counter 42a count the number of times the light is turned off, the lighting device 4 can accurately count the number of times the switch SW1 is turned off.

[0056] (2-3) Third Example The recording circuit 422 of the third example records the accumulated value of the execution time of emergency lighting and inspection as the execution status of emergency lighting and inspection. Therefore, the recording circuit 422 includes a timer 42b as shown in FIG. 5. The timer 42b accumulates the respective lengths of execution time of emergency lighting and inspection. Specifically, the timer 42b performs a timing operation during the period when the lighting control circuit 421 is executing emergency lighting and during the period when the lighting control circuit 421 is executing inspection, and accumulates each measured time to record the accumulated value of execution time. It is preferable that at least a portion of the function of the timer 42b in the present disclosure be realized by a processor executing a program stored in the memory of a computer system.

[0057] When the timer value of the timer 42b (the duration of the period during which emergency lighting and inspection are to be performed) reaches a predetermined notification value, the notification control circuit 423 causes the notification circuit 43 to notify that it is time to perform inspection. The notification value is, for example, several hours to several tens of hours. Here, if the life of the battery 3 is 10 years, inspections are performed twice a year, and each inspection takes 30 minutes, it is preferable that the notification value be 10 hours (0.5 hours x 2 times x 10 years).

[0058] Furthermore, when the time count value of the timer 42b (the duration of the emergency lighting and inspection execution period) reaches a predetermined replacement value, the notification control circuit 423 causes the notification circuit 43 to notify that it is time to replace the battery 3. The replacement value is larger than the notification value, and is, for example, about 10 to 100 hours.

[0059] FIG. 6 is an example of a three-day time chart of a lighting system including disaster prevention lighting equipment 1 installed in a store or the like.

[0060] After finishing work on the first day, the employee switches the switch SW1 from the ON state to the OFF state at time t2 and goes home. When the switch SW1 is turned OFF at time t2, the power outage detection circuit 46 detects the power outage, and the lighting control circuit 421 controls the lighting circuit 41 to execute emergency lighting. Emergency lighting is executed for a period T1 from time t2 onwards. The timer 42b executes timing operation for the period T1. In this embodiment, the integrated value Ta of the execution time at the start of the period T1 is zero. Therefore, the integrated value Ta of the execution time at the end of the period T1 is the length of the period T1, |T1| (Ta = |T1|). The period T1 is the period from the start of emergency lighting to the time when the load current becomes zero and the light source 2 is turned off.

[0061] After finishing work on the second day, the employee switches the switch SW1 from the ON state to the OFF state at time t4 and goes home. When the switch SW1 is turned OFF at time t4, the power outage detection circuit 46 detects the power outage, and the lighting control circuit 421 controls the lighting circuit 41 to execute emergency lighting. Emergency lighting is executed for a period T2 from time t4 onward. The timer 42b executes a timing operation for the period T2. In this embodiment, the integrated value Ta at the start of the period T2 is |T1|. Therefore, the integrated value Ta of the execution time at the end of the period T2 is the sum of the length of the period T1 |T1| and the length of the period T2 |T2| (Ta = |T1| + |T2|). Note that the period T2 is the period from the start of emergency lighting to the time when the load current becomes zero and the light source 2 is turned off.

[0062] When the external power supply 9 stops at time t11 on the third day and the power outage detection circuit 46 detects the power outage, the lighting control circuit 421 controls the lighting circuit 41 to perform emergency lighting. Emergency lighting is performed for a period T3 from time t11 onwards. The timer 42b performs timing operation for the period T3. In this embodiment, the integrated value Ta at the start of the period T3 is |T1|+|T2|. Therefore, the integrated value Ta of the execution time at the end of the period T3 is the sum of the length |T1| of the period T1, the length |T2| of the period T2, and the length |T3| of the period T3 (Ta=|T1|+|T2|+|T3|). Note that the period T3 is the period during which the power outage occurs.

[0063] At time t12 after time t6 on the third day, an inspector starts inspection. When inspection starts, the lighting control circuit 421 controls the lighting circuit 41 to perform inspection lighting. Inspection lighting is performed for a period T4 from time t11 onwards. The timer 42b performs timing operation for the period T4. In this embodiment, the integrated value Ta at the start of the period T4 is |T1|+|T2|+|T3|. Therefore, the integrated value Ta of the execution time at the end of the period T4 is the sum of the length |T1| of the period T1, the length |T2| of the period T2, the length |T3| of the period T3, and the length |T4| of the period T4 (Ta = |T1|+|T2|+|T3|+|T4|). Note that the period T4 is the period during inspection.

[0064] In this way, the timer 42b can accumulate the duration of each of the emergency lighting and inspection execution times.

[0065] (3) Alarm circuit In the notification circuit 43, when notifying that it is time to perform an inspection, the drive circuit 433 lights up or flashes the display element 431. Furthermore, the drive circuit 433 may notify that it is time to perform an inspection by outputting a sound from the sound output unit 432. The sound output from the sound output unit 432 may be, for example, a message such as "Please perform an inspection," notifying that it is time to perform an inspection, or a buzzer sound. In this embodiment, notifying that it is time to perform an inspection refers to notifying a person that it is time to perform an inspection and urging the person to perform the inspection.

[0066] When the notification circuit 43 notifies that it is time to replace the battery 3, the drive circuit 433 lights up or flashes the display element 431. The drive circuit 433 may also notify that it is time to replace the battery 3 by outputting a sound from the sound output unit 432. The sound output from the sound output unit 432 may be, for example, a message such as "Please replace the battery 3," or a buzzer sound, notifying that it is time to replace the battery 3. In this embodiment, notifying that it is time to replace the battery 3 refers to notifying a person that it is time to replace the battery 3 and urging them to replace the battery 3.

[0067] (4) Operation when the battery is degraded Furthermore, if the execution status of emergency lighting and inspection recorded in the recording circuit 422 reaches a predetermined status, the lighting control circuit 421 preferably blinks the light source 2 at least when emergency lighting is executed.

[0068] For example, when the count value of the counter 42a (see FIG. 2) reaches the notification count or the replacement count, or when the time count of the timer 42b (see FIG. 5) reaches the notification value or the replacement value, the lighting control circuit 421 blinks the light source 2 when executing emergency lighting. Furthermore, the lighting control circuit 421 may blink the light source 2 when executing inspection lighting in addition to when executing emergency lighting.

[0069] Therefore, it is possible to notify the user when it is time to inspect the battery 3 or when it is time to replace the battery 3, and it is also possible to reduce power consumption when the battery 3 has deteriorated.

[0070] (5) Modified lighting system The above-described lighting system 4A is configured with a lighting device 4 as shown in Fig. 7. However, the lighting system may have the configuration shown in any one of Figs.

[0071] (First Modification) The lighting system 4B shown in FIG. 8 includes the disaster prevention lighting fixture 1 and an inspection terminal 6.

[0072] The inspection terminal 6 is a remote controller, a smartphone, a tablet terminal, or the like, and is a terminal that can be carried by a user such as an inspector. The inspection terminal 6 is configured to be able to communicate with the disaster prevention lighting device 1 wirelessly or via wired communication, and includes a control circuit 61, an operation unit 62, and an alarm circuit 63. The wireless communication preferably complies with standards such as wireless LAN, BLUETOOTH (registered trademark), or ZIGBEE (registered trademark) (e.g., IEEE 802.11, IEEE 802.15.1, or IEEE 802.15.4). The wired communication preferably complies with standards such as a wired LAN (Local Area Network) such as Ethernet (registered trademark), or RS-485 (e.g., IEEE 802.3, RS-485, etc.).

[0073] The control circuit 61 preferably includes a computer system, and the computer system mainly comprises a processor and a memory as hardware.

[0074] The operation unit 62 has a configuration for accepting user operations. The notification circuit 63 preferably uses any of light, sound, an identifier, a watermark, and a display as a notification medium to perform notification. An identifier is, for example, a character, a symbol, a pattern, or a combination of characters, symbols, or patterns that represents a message. At least a portion of the operation unit 62 and at least a portion of the notification circuit 63 may be configured as a touch panel with a touch sensor superimposed on a screen.

[0075] The inspection terminal 6 then transmits a control signal corresponding to the operation of the operating unit 62 to the disaster prevention lighting fixture 1. The lighting device 4 performs various operations such as turning the light on, off, and dimming in response to the received control signal. If the received control signal is an inspection signal, the lighting device 4 performs an inspection. The disaster prevention lighting fixture 1 can also transmit various information such as the status of emergency lighting, the status of inspection, and the lighting state of the light source 2 to the inspection terminal 6. The alarm circuit 63 can display or output the received information as sound.

[0076] For example, the count value of counter 42a (see FIG. 2) or the time value of timer 42b (see FIG. 5) is recorded in recording circuit 422 of lighting device 4. Then, lighting device 4 transmits the count value of counter 42a or the time value of timer 42b to inspection terminal 6. In inspection terminal 6, notification circuit 63 displays or outputs the count value of counter 42a or the time value of timer 42b as a sound.

[0077] Furthermore, the control circuit 61 of the inspection terminal 6 may be provided with a recording circuit 611 instead of the recording circuit 422 of the lighting device 4. In this case, the lighting device 4 notifies the inspection terminal 6 of the start timing and end timing of each emergency lighting and inspection. Based on the notification, the recording circuit 611 records the number of times emergency lighting and inspection have been performed, the number of times the light source 2 was turned off during emergency lighting and inspection, or the accumulated value of the emergency lighting and inspection duration. Then, the notification circuit 63 notifies the time to perform inspection or replace the battery 3 when the number of times emergency lighting and inspection have been performed reaches the notification number or replacement number. Furthermore, the notification circuit 63 notifies the time to perform inspection or replace the battery 3 when the number of times the light has been turned off reaches the notification number or replacement number. Furthermore, the notification circuit 63 notifies the time to perform inspection or replace the battery 3 when the accumulated value reaches the notification value or replacement value.

[0078] Furthermore, through communication between the inspection terminal 6 and the lighting device 4, the notification circuit 43 can also notify when it is time to perform an inspection or when it is time to replace the battery 3.

[0079] (Second Modification) A lighting system 4C shown in FIG. 9 includes a disaster prevention lighting device 1, an inspection terminal 6, and a management system 7.

[0080] The inspection terminal 6 has the same configuration as the inspection terminal 6 of the first modified example, and a description of the inspection terminal 6 will be omitted.

[0081] The management system 7 includes a management server, a personal computer, various sensors, etc., and performs various management tasks for the building in which the store is located, such as disaster monitoring, security management, and energy management. The management system 7 is configured to enable wireless or wired communication with the disaster prevention lighting fixture 1, and includes a control circuit 71, an operation unit 72, and an alarm circuit 73. The wireless communication preferably complies with standards such as wireless LAN, BLUETOOTH, or ZIGBEE. The wired communication preferably complies with standards such as wired LAN, such as BACnet (registered trademark) or Ethernet, or RS-485.

[0082] The control circuit 71 preferably includes a computer system, and the computer system mainly includes a processor and a memory as hardware. The operation unit 72 has the same functions as the operation unit 62. The notification circuit 73 has the same functions as the notification circuit 63.

[0083] The management system 7 then transmits a control signal corresponding to the operation of the operating unit 72 to the disaster prevention lighting device 1. The lighting device 4 performs various operations such as turning the light on, off, and dimming in response to the received control signal. If the received control signal is an inspection signal, the lighting device 4 performs an inspection. The disaster prevention lighting device 1 can also transmit various information such as the status of emergency lighting, the status of inspection, and the lighting state of the light source 2 to the management system 7. The alarm circuit 73 can display or output the received information as sound.

[0084] Alternatively, the control circuit 71 of the management system 7 may include a recording circuit 711 instead of the recording circuit 422 of the lighting device 4. In this case, the lighting device 4 notifies the management system 7 of the start and end timings of emergency lighting and inspection. Based on the notification, the recording circuit 711 records the number of times emergency lighting and inspection have been performed, the number of times the light source 2 was turned off during emergency lighting and inspection, or the cumulative duration of emergency lighting and inspection as the status of emergency lighting and inspection. At least one of the disaster prevention lighting device 1, the inspection terminal 6, and the management system 7 then determines when to perform inspection or replace the battery 3 based on the status of emergency lighting and inspection recorded in the recording circuit 711. The notification circuits 43, 63, and 73 notify the status of inspection or replacement of the battery 3.

[0085] (Third Modification) A lighting system 4D shown in FIG. 10 includes a disaster prevention lighting device 1, an inspection terminal 6, a master unit 8A, a slave unit 8B, and a server 8C.

[0086] The parent device 8A, the child device 8B, and the server 8C function as a management system that performs various management tasks for the building in which the store is located, such as disaster monitoring, security management, and energy management. The parent device 8A, the child device 8B, and the server 8C are configured to be able to communicate with each other via a wide area network NT1 that includes the Internet.

[0087] The parent unit 8A and the child unit 8B are configured to be able to communicate wirelessly or wired with the disaster prevention lighting fixture 1. The wireless communication preferably complies with standards such as wireless LAN, BLUETOOTH, or ZIGBEE. The wired communication preferably complies with standards such as wired LAN such as BACnet or Ethernet, or RS-485. The parent unit 8A includes a control circuit 81, an operation unit 82, and an alarm circuit 83. The child unit 8B is a remote controller, smartphone, or tablet terminal that can be carried by a user such as an inspector, and includes a control circuit 84, an operation unit 85, and an alarm circuit 86.

[0088] The control circuits 81 and 84 preferably include a computer system, and the computer system mainly comprises a processor and a memory as hardware. The operation units 82 and 85 each have the same functions as the operation unit 62. The notification circuits 83 and 86 each have the same functions as the notification circuit 63.

[0089] The master unit 8A, slave unit 8B, and server 8C of the management system can acquire information such as the status of emergency lighting and inspection from the recording circuit 422 of the disaster prevention lighting fixture 1. The notification circuits 83 and 86 display or output the received information as sound.

[0090] Alternatively, instead of the recording circuit 422 of the lighting device 4, the control circuit 81 of the master unit 8A may include the recording circuit 811, the control circuit 84 of the slave unit 8B may include the recording circuit 841, or the server 8C may include the recording circuit 87. In this case, the lighting device 4 notifies the management system of the start and end timings of emergency lighting and inspection. Based on the notification, the recording circuit 811, recording circuit 841, or recording circuit 87 records the number of times emergency lighting and inspection were performed, the number of times the light source 2 was turned off during emergency lighting and inspection, or the cumulative duration of emergency lighting and inspection as the status of emergency lighting and inspection. At least one of the disaster prevention lighting fixture 1, master unit 8A, slave unit 8B, and server 8C then determines when to perform inspection or replace the battery 3 based on the status of emergency lighting and inspection recorded in the recording circuit. The notification circuits 43, 83, and 86 notify the management system of the time to perform inspection or replace the battery 3.

[0091] (6) Structure of disaster prevention lighting equipment 11A to 11C, the structure of disaster prevention lighting fixture 1 equipped with lighting device 4 will be described below. Disaster prevention lighting fixture 1 according to this embodiment is attached to construction materials such as ceiling materials and wall materials, and irradiates illumination light onto evacuation passages and the like during a power outage.

[0092] As shown in FIGS. 11A to 11C, the disaster prevention lighting device 1 includes a main body 10, a cover 11, and a pair of supports 12.

[0093] 11A and 11B, the main body 10 is formed in a cylindrical shape with one bottom surface (lower surface) open. A pair of supports 12 are attached to the side surfaces of the main body 10. An annular flange 100 that protrudes outward is formed at the lower end of the main body 10.

[0094] 11A to 11C, the pair of supports 12 are formed in the shape of long leaf springs. One longitudinal end of each support 12 is fixed to the side surface of the main body 10, and the other longitudinal end is configured to be flexible (upward) in a direction approaching the bottom surface (top surface) of the main body 10. In other words, the main body 10 is supported by the ceiling material such that the ceiling material is sandwiched between the 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.

[0095] As shown in FIGS. 11A to 11C, the cover 11 is formed in a disk shape that is larger than the outer diameter of the flange 100 of the main body 10. As shown in FIG. 11B, a circular window hole 110 is provided in the center of the cover 11. The lens 21 of the light source unit 2U passes through the window hole 110. A pair of mounting springs are attached to the cover 11. As shown in FIG. 11C, the pair of mounting springs hold the cover 11 to the main body 10 in a state in which the cover 11 closes the bottom surface of the main body 10.

[0096] The lighting device 4 (see FIG. 1), the light source 2 (see FIG. 1), and the battery 3 (see FIG. 1) are attached to the main body 10. More specifically, as shown in FIG. 11B, the light source unit 2U, the battery unit 3U, and the lighting unit 4U are housed within the main body 10. However, the battery unit 3U is housed within the main body 10 so as to be insertable and removable through an opening in the bottom surface of the main body 10.

[0097] 11B, the light source unit 2U includes an LED module 20 and a lens 21. The LED module 20 has a substrate on which a light source 2 is mounted, and emits white illumination light such as white, neutral white, or daylight color when a voltage is applied in the forward direction. The lens 21 is disposed in front of (below) the LED module 20 and collects the light emitted from the LED module 20.

[0098] The battery unit 3U shown in FIG. 11B has a battery 3 (see FIG. 1) that includes multiple cells, and a battery case that houses the battery 3. The battery 3 is, for example, a nickel-metal hydride 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 houses the multiple cells inside.

[0099] The lighting unit 4U shown in FIG. 11B has a lighting device 4 (see FIG. 1). Light emitted from a monitor lamp 48 of the lighting device 4 is emitted to the front (downward) of the cover 11 through a first hole 111 provided in the cover 11. The receiver 47 receives (receives) a wireless signal through a second hole 112 provided in the cover 11. Light emitted from a display element 431 of the alarm circuit 43 is emitted to the front (downward) of the cover 11 through a third hole 114 provided in the cover 11. The push buttons of the three push button switches 49A, 49B are arranged to face three operation holes 113 provided in the cover 11, one for each.

[0100] (7) Disaster prevention lighting system 12 shows the configuration of a disaster prevention lighting system B1 of this embodiment. The disaster prevention lighting system B1 includes a plurality of disaster prevention lighting devices 1.

[0101] In the disaster prevention lighting system B1, each of the multiple 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 W1, and the communication circuit transmits and receives signals via the communication line W1. The communication circuit preferably transmits and receives signals in accordance with a wired local area network (LAN) such as Ethernet (registered trademark) or a standard such as RS-485 (e.g., IEEE 802.3 or RS-485). Therefore, each lighting device 4 of the multiple disaster prevention lighting fixtures 1 communicates via the communication line W1, and the control circuit 42 can exchange data with other lighting devices 4.

[0102] For example, each notification control circuit 423 of the multiple lighting devices 4 obtains data related to the inspection timing of the other lighting devices 4 (data such as the next regular inspection timing and delay time) from the control circuits 42 of the other lighting devices 4. Therefore, each notification control circuit 423 of the multiple lighting devices 4 can set the regular inspection timing of its own device so that the regular inspection timing of its own device does not overlap with the regular inspection timing of the other lighting devices 4.

[0103] Furthermore, each of the notification control circuits 423 of the multiple lighting devices 4 may transmit data regarding the timing of regular inspections of its own device by multicast or broadcast. In this case, each of the multiple lighting devices 4 can easily obtain the data regarding the timing of regular inspections of the other lighting devices 4.

[0104] Furthermore, each notification control circuit 423 of multiple lighting devices 4 may periodically transmit a data request to the other lighting devices 4 by multicast or broadcast. Upon receiving the data request, the notification control circuit 423 returns data related to the timing of regular inspection of its own device to the lighting device 4 that sent the data request.

[0105] The communication circuit of the lighting device 4 may also transmit and receive signals via wireless communication. For example, the communication circuit may transmit and receive signals in accordance with standards such as wireless LAN, BLUETOOTH, or ZIGBEE. In this case, the disaster prevention lighting system does not require the communication line W1.

[0106] Therefore, each of the multiple lighting devices 4 in the disaster prevention lighting system B1 can obtain the regular inspection timing of the other lighting devices 4 and flexibly set the regular inspection timing of its own device so that it does not overlap with the regular inspection timing of the other lighting devices 4.

[0107] (8) Summary The lighting system (4A, 4B, 4C, 4D) of the first aspect according to the above-described embodiment includes a lighting circuit (41), a discharge circuit (5), and a recording circuit (422, 611, 711, 811, 841, 87). The lighting circuit (41) performs emergency lighting by lighting the light source (2) with emergency power supplied from the battery (3) when the external power source (9) is stopped. The discharge circuit (5) discharges the battery (3) when an inspection is performed to check the battery (3). The recording circuits (422, 611, 711, 811, 841, 87) record the execution status of the emergency lighting and the inspection.

[0108] The lighting systems (4A, 4B, 4C, 4D) described above can make people aware of the degree of battery deterioration, including deterioration of the battery (3) caused by the interruption of the external power supply (9).

[0109] In addition, in the lighting system (4A, 4B, 4C, 4D) of the second aspect of the embodiment, in the first aspect, it is preferable that the recording circuit (422, 611, 711, 811, 841, 87) records the number of times emergency lighting and inspection have been performed as the execution status of emergency lighting and inspection.

[0110] The lighting system (4A, 4B, 4C, 4D) described above can make a person aware of the degree of deterioration of the battery (3), including deterioration of the battery (3) caused by interruption of the external power supply (9).

[0111] In addition, in the lighting system (4A, 4B, 4C, 4D) of the third aspect of the embodiment, in the first aspect, it is preferable that the discharge circuit (5) discharges the battery (3) to light the light source (2) when an inspection is performed. The recording circuit (422, 611, 711, 811, 841, 87) records the number of times the light source (2) is turned off when emergency lighting and inspection are performed, as the execution status of emergency lighting and inspection.

[0112] The lighting system (4A, 4B, 4C, 4D) described above can make a person aware of the degree of deterioration of the battery (3), including deterioration of the battery (3) caused by interruption of the external power supply (9).

[0113] Furthermore, in the lighting system (4A, 4B, 4C, 4D) of the fourth aspect of the embodiment, in the first aspect, it is preferable that the recording circuit (422, 611, 711, 811, 841, 87) records the accumulated value of the execution time of emergency lighting and inspection as the execution status of emergency lighting and inspection.

[0114] The lighting system (4A, 4B, 4C, 4D) described above can make a person aware of the degree of deterioration of the battery (3), including deterioration of the battery (3) caused by interruption of the external power supply (9).

[0115] Furthermore, it is preferable that the lighting system (4A, 4B, 4C, 4D) of a fifth aspect of the embodiment, in any one of the first to fourth aspects, further includes an alarm circuit (43, 63, 73, 83, 86). The alarm circuit (43, 63, 73, 83, 86) at least notifies that it is time to perform an inspection, based on the emergency lighting and inspection execution status recorded in the recording circuit (422, 611, 711, 811, 841, 87).

[0116] The lighting systems described above (4A, 4B, 4C, 4D) can prompt a person to perform an inspection.

[0117] In addition, it is preferable that the lighting system (4A, 4B, 4C, 4D) of the sixth aspect of the embodiment further includes an alarm circuit (43, 63, 73, 83, 86) that, when the number of executions reaches a predetermined number in the second aspect, at least notifies that it is time to perform inspection.

[0118] The lighting systems described above (4A, 4B, 4C, 4D) can prompt a person to perform an inspection.

[0119] In addition, in the lighting system (4A, 4B, 4C, 4D) of the seventh aspect according to the embodiment, in the sixth aspect, it is preferable that the predetermined number of times is 20 times.

[0120] In the above-described lighting systems (4A, 4B, 4C, 4D), if the battery (3) has a lifespan of 10 years and inspections are performed twice a year, the lighting systems (4A, 4B, 4C, 4D) can prompt a person to perform inspections at appropriate times taking into consideration deterioration of the battery (3) caused by cutting off the external power supply (9).

[0121] In addition, it is preferable that the lighting system (4A, 4B, 4C, 4D) of the eighth aspect of the embodiment further includes an alarm circuit (43, 63, 73, 83, 86) that, when the number of times the light has been turned off reaches a predetermined number, at least notifies the user that it is time to perform an inspection.

[0122] The lighting systems described above (4A, 4B, 4C, 4D) can prompt a person to perform an inspection.

[0123] Furthermore, it is preferable that the lighting system (4A, 4B, 4C, 4D) of the ninth aspect of the embodiment further includes an alarm circuit (43, 63, 73, 83, 86) that, when the integrated value reaches a predetermined value, at least notifies that it is time to perform an inspection.

[0124] The lighting systems described above (4A, 4B, 4C, 4D) can prompt a person to perform an inspection.

[0125] In addition, in the lighting system (4A, 4B, 4C, 4D) of the tenth aspect according to the embodiment, in the ninth aspect, it is preferable that the predetermined value is 10 hours.

[0126] In the above-described lighting systems (4A, 4B, 4C, 4D), if the battery (3) has a life of 10 years, inspections are performed twice a year, and each inspection takes 30 minutes, the lighting systems (4A, 4B, 4C, 4D) can prompt a person to perform an inspection at an appropriate time, taking into account the deterioration of the battery (3) that occurs when the external power source (9) is cut off.

[0127] Preferably, the lighting system (4A, 4B, 4C, 4D) of an eleventh aspect of the embodiment further includes an alarm circuit (43, 63, 73, 83, 86) in any one of the first to tenth aspects. The alarm circuit (43, 63, 73, 83, 86) notifies that it is time to replace at least the battery (3), based on the execution status of emergency lighting and inspection recorded in the recording circuit (422, 611, 711, 811, 841, 87).

[0128] The lighting system (4A, 4B, 4C, 4D) described above can prompt a person to replace the battery (3).

[0129] In addition, in the lighting system (4A, 4B, 4C, 4D) of the twelfth aspect of the embodiment, in any one of the first to eleventh aspects, it is preferable that the lighting circuit (41) blinks the light source (2) at least when executing emergency lighting, if the execution status of emergency lighting and inspection recorded in the recording circuit (422, 611, 711, 811, 841, 87) becomes a predetermined status.

[0130] The lighting systems (4A, 4B, 4C, 4D) described above can notify the time for inspection or replacement of the battery 3, and can reduce power consumption when the battery (3) deteriorates.

[0131] A disaster prevention lighting device (1) according to a thirteenth aspect of the present embodiment includes a lighting system (4A, 4B, 4C, 4D) according to any one of the first to twelfth aspects, a light source (2), a battery (3), and a main body (10). The light source (2) is illuminated by the output of the lighting system (4A, 4B, 4C, 4D). The battery (3) supplies emergency power to the lighting system (4A, 4B, 4C, 4D) for illuminating the light source (2). The lighting system (4A, 4B, 4C, 4D), the light source (2), and the battery (3) are attached to the main body (10).

[0132] The disaster prevention lighting device (1) described above can make people aware of the degree of deterioration of the battery (3), including deterioration of the battery (3) caused by the interruption of the external power supply (9).

[0133] Moreover, a disaster prevention lighting system (B1) according to a fourteenth aspect of the embodiment includes a plurality of disaster prevention lighting devices (1) according to the thirteenth aspect.

[0134] The disaster prevention lighting system (B1) described above can make a person aware of the degree of deterioration of the battery (3), including the deterioration of the battery (3) caused by the interruption of the external power supply (9). [Explanation of symbols]

[0135] 1. Disaster prevention lighting equipment 2 light source 3 batteries 4 Lighting device 4A, 4B, 4C, 4D lighting systems 41 Lighting circuit 43, 63, 73, 83, 86 Notification circuit 422, 611, 711, 811, 841, 87 Recording circuit 5 Discharge circuit 9 External power supply 10 Main Unit B1 Disaster Prevention Lighting System

Claims

1. a lighting circuit that performs emergency lighting by lighting the light source with emergency power supplied from the battery when an external power source, which is a commercial power system, stops; a discharge circuit that discharges the battery by turning on the light source while power from the external power source is cut off during the inspection of the battery; a recording circuit that records the execution status of the emergency lighting and the inspection, The recording circuit records the number of times the light source is turned off during the execution of the emergency lighting and the inspection as the execution status of the emergency lighting and the inspection. Lighting system.

2. The recording circuit records the number of times the emergency lighting and the inspection have been performed as the execution status of the emergency lighting and the inspection. The lighting system of claim 1.

3. The recording circuit records, as the execution status of the emergency lighting and the inspection, the integrated value of the execution time of the emergency lighting and the inspection. The lighting system of claim 1.

4. The device further includes an alarm circuit that notifies the user that it is time to perform at least the inspection based on the emergency lighting and the inspection status recorded in the recording circuit. A lighting system according to any one of claims 1 to 3.

5. The device further includes an alarm circuit that, when the number of times the inspection has been performed reaches a predetermined number, notifies the user that it is time to perform the inspection. The lighting system of claim 2.

6. The predetermined number of times is 20 times. The lighting system of claim 5.

7. The device further includes an alarm circuit that, when the number of times the light has been turned off reaches a predetermined number, notifies the user that it is time to perform the inspection. The lighting system of claim 1.

8. The device further includes an alarm circuit that, when the integrated value reaches a predetermined value, notifies the user that it is time to perform at least the inspection. The lighting system of claim 3.

9. The predetermined value is 10 hours. The lighting system of claim 8.

10. The device further includes an alarm circuit that notifies the user that it is time to replace at least the battery based on the execution status of the emergency lighting and the inspection recorded in the recording circuit. A lighting system according to any one of claims 1 to 9.

11. The lighting circuit blinks the light source at least when the emergency lighting is performed if the execution status of the emergency lighting and the inspection recorded in the recording circuit reaches a predetermined status. A lighting system according to any one of claims 1 to 10.

12. A lighting circuit that performs emergency lighting by lighting a light source with emergency power supplied from a battery when an external power source, which is a commercial power system, is stopped; a discharge circuit for discharging the battery when the battery is inspected; a recording circuit that records the execution status of the emergency lighting and the inspection, the discharge circuit discharges the battery to turn on the light source when the inspection is performed; The recording circuit records the number of times the light source is turned off during the execution of the emergency lighting and the inspection as the execution status of the emergency lighting and the inspection. Lighting system.

13. A lighting circuit that performs emergency lighting by lighting a light source with emergency power supplied from a battery when an external power source, which is a commercial power system, is stopped; a discharge circuit for discharging the battery when the battery is inspected; a recording circuit that records the execution status of the emergency lighting and the inspection, The lighting circuit blinks the light source at least when the emergency lighting is performed if the execution status of the emergency lighting and the inspection recorded in the recording circuit reaches a predetermined status. Lighting system.

14. A lighting circuit that performs emergency lighting by lighting a light source with emergency power supplied from a battery when an external power source, which is a commercial power system, is stopped; a discharge circuit that discharges the battery by turning on the light source while power from the external power source is cut off during inspection of the battery; a recording circuit that records the execution status of the emergency lighting and the inspection, The lighting circuit blinks the light source at least when the emergency lighting is performed if the execution status of the emergency lighting and the inspection recorded in the recording circuit reaches a predetermined status. Lighting system.

15. A lighting system according to any one of claims 1 to 14; a light source that is lit by the output of the lighting system; a battery that supplies emergency power to the lighting system for lighting the light source; a main body to which the lighting system, the light source, and the battery are attached; A disaster prevention lighting device characterized by the above.

16. A lighting system comprising a plurality of disaster prevention lighting devices according to claim 15. A disaster prevention lighting system characterized by:

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