JP2012113877A - Emergency lighting device and emergency lighting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an emergency lighting device and an emergency lighting apparatus which are capable of evaluating not only presence or absence of abnormality but also degradation degree of a secondary battery.SOLUTION: An inspection start unit 12, upon receiving inspection start instruction from an inspection terminal 4, interrupts a charging current of a secondary battery 33, turns on a light source 2 by supplying power from the secondary battery 33 to a lighting circuit 34, and starts inspection of the secondary battery 33. A voltage measuring unit 13 measures a both-end voltage of the secondary battery 33 as a battery voltage value. A timer unit 14 measures time required from inspection starting point until the battery voltage value reaches a predetermined standard value as duration time. An evaluating unit 15 evaluates presence or absence of abnormality of the secondary battery 33 on the basis of the length of the duration time measured by the timer unit 14, and evaluates a difference value between the duration time and reference time as a duration time margin to the reference time. A presenting unit 43 of the inspection terminal 4 presents evaluation results of the evaluating unit 15.

Description

  The present invention relates to an emergency lighting device and an emergency lighting device that light a light source by an output of a secondary battery at the time of a power failure of an ordinary power source.

  In general, emergency lighting fixtures such as emergency lights and guide lights that are installed in buildings or the like and turn on a light source in the event of a power failure of a commercial power source such as a commercial power source are widely used. In this type of emergency lighting fixture, in order to confirm that the light source is turned on by the output of the secondary battery, the secondary battery, which is a main component, is normally inspected regularly. As the inspection work, the operator operates the inspection switch provided in the emergency lighting equipment to turn on the light source according to the output of the secondary battery, starts the inspection, and after a predetermined time has elapsed from the start of the inspection, the voltage value of the secondary battery A method for determining whether or not is greater than a specified value is common.

  In recent years, there has also been proposed an emergency lighting device that is provided with an inspection terminal (remote control terminal) separately from the emergency lighting fixture (guide light device) and that can check the inspection result with the inspection terminal. (For example, refer to Patent Document 1). The emergency lighting device described in Patent Document 1 transmits the voltage value of the secondary battery (battery) and the lighting state of the light source (lamp) after the lapse of a predetermined time from the start of inspection to the inspection terminal from the emergency lighting apparatus. In order to save labor in inspection work.

JP 2003-92013 A

  However, as described above, the inspection method for determining the presence or absence of abnormality based on the voltage value of the secondary battery after the lapse of a predetermined time from the start of inspection can only evaluate pass / fail (that is, presence or absence of abnormality). The degree of deterioration cannot be evaluated. For example, even if there is a secondary battery that has not deteriorated at all, and a secondary battery that has deteriorated to the extent that the light source is turned off immediately after the lapse of a predetermined time from the start of lighting, If the voltage value is equal to or higher than the specified value, both are determined to be normal and the degree of deterioration is not evaluated.

  The present invention has been made in view of the above-described reasons, and an object thereof is to provide an emergency lighting device and an emergency lighting device that can evaluate not only the presence / absence of abnormality of the secondary battery but also the deterioration degree of the secondary battery. .

  The emergency lighting device according to the present invention includes a lighting circuit that turns on a light source, a secondary battery that supplies power to the lighting circuit in the event of a power failure of the utility power supply, and power supply from the utility power supply when the utility power supply is energized. A charging circuit for charging the secondary battery; and an inspection unit for inspecting the secondary battery, wherein the inspection unit stops power supply from the charging circuit to the secondary battery. An inspection start unit for starting the inspection by turning on the light source by supplying power to the lighting circuit, a voltage measurement unit for measuring a voltage value at both ends of the secondary battery, and the voltage measurement unit from the start of the inspection A time measuring unit that measures the time required for the measured value to reach a predetermined specified value as a duration, and at least the presence or absence of abnormality of the secondary battery based on the length of the duration. Next battery status And having a worthy evaluation unit, and a presentation unit that presents the evaluation result of the evaluation unit.

  In this emergency lighting device, the inspection unit includes a storage unit that stores the duration, and the evaluation unit performs a lapse of time from the plurality of past durations stored in the storage unit. It is desirable to obtain a change in the duration of the secondary battery and to evaluate a life time of the secondary battery as a state of the secondary battery based on the change and the duration at the latest inspection.

  In this emergency lighting device, a device main body that holds the light source and an inspection terminal that includes the presentation unit are provided as separate bodies, the light source includes a semiconductor light emitting element, and the device main body includes the continuous light source. A communication unit that transmits data including at least one of time and an evaluation result of the evaluation unit to the inspection terminal, and the communication unit performs visible light communication using visible light emitted from the light source as a medium; More preferably, the data is transmitted to an inspection terminal.

  In this emergency lighting device, the light source includes a semiconductor light emitting element, and the inspection unit further includes a light source measurement unit that measures at least one of a voltage value across the light source and a current flowing through the light source during the inspection. More preferably, the evaluation unit evaluates the presence or absence of abnormality of the light source based on the measurement value of the light source measurement unit.

  The emergency lighting fixture of the present invention is used in the emergency lighting device, and includes the lighting circuit, the secondary battery, and the charging circuit in the fixture main body together with the light source.

  The present invention has an advantage that the evaluation unit can evaluate not only the presence / absence of abnormality of the secondary battery but also the degree of deterioration of the secondary battery by evaluating the state of the secondary battery based on the length of the duration. There is.

1 is a block diagram showing a schematic configuration of Embodiment 1. FIG. It is explanatory drawing of operation | movement same as the above. FIG. 10 is an explanatory diagram of an operation of the second embodiment. FIG. 10 is a block diagram illustrating a schematic configuration of a third embodiment. It is explanatory drawing of operation | movement same as the above. It is explanatory drawing of operation | movement same as the above.

(Embodiment 1)
As shown in FIG. 1, the emergency lighting device 1 of the present embodiment includes a device main body 3 that holds a light source 2 and an inspection terminal 4 that is separate from the device main body 3. The apparatus main body 3 is provided in a fixture main body (not shown) together with the light source 2 and constitutes an emergency lighting fixture 5 together with the light source 2. In the present embodiment, the emergency lighting fixture 5 is an emergency light that is installed in a building such as a building, and is configured such that the light source 2 is turned off when the normal power source is energized and the light source 2 is turned on when the power source is interrupted. is there. The light source 2 is a halogen lamp.

  The apparatus main body 3 includes a rectifier 31 for full-wave rectification of the commercial power supply 6 that is a normal power supply, a charging circuit 32 connected to the output terminal of the rectifier 31, and a secondary battery 33 connected to the output terminal of the charging circuit 32. And a lighting circuit 34 connected to the secondary battery 33. The lighting circuit 34 is connected to the light source 2 at the output end thereof, and receives the power supply from the secondary battery 33 to turn on the light source 2. When the commercial power source 6 is energized, the charging circuit 32 receives power supplied from the commercial power source 6 via the rectifier 31 and charges the secondary battery 33 by causing a charging current to flow through the secondary battery 33.

  Further, the apparatus main body 3 includes a control circuit 10 that controls on / off of a switch 35 inserted between the secondary battery 33 and the lighting circuit 34. The control circuit 10 turns on the switch 35 to turn on the light source 2 by supplying power from the secondary battery 33 to the lighting circuit 34 at the time of a power failure of the commercial power supply 6. The power failure detection unit 11 has a power failure detection unit 11 that monitors whether the commercial power supply 6 is energized or out of power by monitoring the charging current supplied from the charging circuit 32 to the secondary battery 33. The control circuit 10 turns off the switch 35 during normal operation, and turns on the switch 35 while the power failure detection unit 11 detects a power failure of the commercial power supply 4. The configuration other than the power failure detection unit 11 of the control circuit 10 will be described later.

  The inspection terminal 4 is operated by a built-in battery (not shown) and is carried by an operator who performs an inspection operation on the secondary battery 33 of the emergency lighting device 1. The inspection terminal 4 includes a transmission / reception unit 41 that communicates with the apparatus main body 3, an operation unit 42 that receives an operation input from an operator, a presentation unit 43 that presents an inspection result, and a control unit 44 that controls each unit. ing.

  In this embodiment, the transmission / reception unit 41 is configured to be capable of bidirectional communication with the apparatus body 3 by infrared communication. When a predetermined operation is performed on the operation unit 42, the control unit 44 controls the transmission / reception unit 41 to transmit an inspection start instruction to the apparatus main body 3. When the transmission / reception unit 41 receives the inspection result from the apparatus main body 3, the control unit 44 controls the presentation unit 43 so that the inspection result is presented to the operator. The presenting unit 43 may be configured to present the inspection result to the worker by displaying the inspection result, or may be configured to present the inspection result to the worker by voice or the like.

  That is, in this embodiment, the operator can start the inspection of the secondary battery 33 by operating the inspection terminal 4 and can check the inspection result on the inspection terminal 4. Therefore, even when the emergency lighting fixture 5 is installed in a place where it is difficult to reach such as the ceiling, the operator can easily check and know the result.

  By the way, in this embodiment, the control circuit 10 of the apparatus main body 3 includes an inspection start unit 12, a voltage measurement unit 13, and a timing unit for inspecting the secondary battery 32 in addition to the power failure detection unit 11 that detects a power failure. 14, an evaluation unit 15, a storage unit 16, and a communication unit 17. These inspection start unit 12, voltage measurement unit 13, timing unit 14, evaluation unit 15, storage unit 16, and communication unit 17 together with the inspection terminal 4 inspect the secondary battery 33 that is a main component of the emergency lighting device 1. Configure the inspection unit to be performed. Hereinafter, the configuration of the inspection unit will be described in detail.

  When the inspection start unit 12 receives an inspection start instruction from the outside (here, the inspection terminal 4), the inspection start unit 12 turns off the inspection switch 36 inserted between the charging circuit 32 and the secondary battery 33, and the secondary battery. 33 charge current is cut off. At this time, since the power failure detection unit 11 detects the stop of the charging current, the control circuit 10 turns on the switch 35 and starts supplying power from the secondary battery 33 to the lighting circuit 34. That is, the inspection start unit 12 receives an inspection start instruction from the outside and forces the commercial power supply 6 to be in the same state as when the power supply 6 is interrupted, thereby turning on the switch 35 and switching from the secondary battery 33 to the lighting circuit 34. The light source 2 is turned on by power supply, and the inspection of the secondary battery 33 is started.

  The voltage measurement unit 13 measures the voltage value across the secondary battery 33 as the battery voltage value. The battery voltage value measured by the voltage measurement unit 13 is output to the timer unit 14 and the evaluation unit 15. As shown in FIG. 2, the time measuring unit 14 starts measuring the secondary battery 33 by the inspection starting unit 12, and the measured value (battery voltage value) of the voltage measuring unit 13 (see FIG. 1) is a predetermined specified value. The time required to reach V0 is measured as the duration T1. The specified value V <b> 0 here is a voltage value across the secondary battery 33 determined in advance so that at least the lighting circuit 34 can light the light source 2. In FIG. 2, the elapsed time from the inspection start time is shown on the horizontal axis, and the battery voltage value is shown on the vertical axis, and the change in the battery voltage value with time is shown.

  When the inspection of the secondary battery 33 starts, the voltage value (battery voltage value) of the secondary battery 33 gradually decreases with time and eventually reaches the specified value V0. However, depending on the deterioration of the secondary battery 33, The length of time (duration T1) until the battery voltage value reaches the specified value V0 varies. Therefore, the evaluation unit 15 evaluates the state of the secondary battery 33 including at least the presence / absence of abnormality of the secondary battery 33 based on the length of the duration T1 measured by the time measuring unit 13.

  Specifically, the evaluation unit 15 compares the reference time T0 (see FIG. 2), which is a criterion for determining whether or not the secondary battery 33 is abnormal, with the duration T1, and if the duration T1 is equal to or greater than the reference time T0. If normal (no abnormality) and the duration is less than the T1 reference time T0, it is determined that there is an abnormality. That is, when the duration T1 is equal to or longer than the reference time T0, this means that the lighting device 34 can keep the light source 2 lit for the reference time T0 or longer by supplying power from the secondary battery 33. Determines that the secondary battery 33 is normal. On the other hand, if the duration T1 is less than the reference time T0, the lighting circuit 34 turns on the light source 2 by supplying power from the secondary battery 33, and the voltage value across the secondary battery 33 is within a specified value within the reference time T0. It means to decrease to V0. Therefore, when the duration T1 is less than the reference time T0, the evaluation unit 15 determines that the secondary battery 33 is abnormal. In short, the evaluation unit 15 determines that there is an abnormality when the battery voltage value enters the region defined by the reference time T0 and the defined value V0 in FIG.

  In addition to the presence or absence of abnormality of the secondary battery 33 determined as described above, the evaluation unit 15 obtains a difference value between the duration T1 and the reference time T0 as a margin of the duration T1 with respect to the reference time T0. The margin is also evaluated as the state of the secondary battery 33. The evaluation result (the presence / absence of abnormality and the margin) of the evaluation unit 15 is stored in the storage unit 16. The inspection starting unit 12 can end the inspection operation of the secondary battery 33 by turning on the inspection switch 36. The timing at which the inspection start unit 12 ends the inspection operation may be when a certain time sufficiently longer than the reference time T0 has elapsed, or when the battery voltage value falls below the specified value V0 (at the end of the duration T1). But you can.

  The communication unit 17 is configured to be capable of bidirectional communication with the transmission / reception unit 41 of the inspection terminal 4. The communication unit 17 receives an inspection start instruction by communication from the inspection terminal 4, and the evaluation unit 15 stored in the storage unit 16. Is sent to the inspection terminal 4. Here, the timing at which the evaluation result is transmitted from the communication unit 17 to the inspection terminal 4 may be after the inspection operation of the secondary battery 33 or during the inspection operation.

  The inspection terminal 4 that has received the inspection result (evaluation result of the evaluation unit 15) from the apparatus main body 3 presents the inspection result in the presentation unit 43. As a result, the presence / absence of abnormality as an evaluation result of the evaluation unit 15 and the margin of the duration T1 with respect to the reference time T0 are presented from the presentation unit 43 to the operator. Note that the inspection result obtained at the inspection terminal 4 may be further sent from the inspection terminal 4 to a central device (not shown) and collected in the central device.

  According to the configuration described above, the operator can know the margin of the duration T1 in addition to the presence / absence of abnormality of the secondary battery 33 as the inspection result of the secondary battery 33. It is possible to evaluate not only the presence or absence of the battery but also the degree of deterioration of the secondary battery 33. That is, in addition to simple pass / fail (that is, presence / absence of abnormality), the worker determines that the secondary battery 33 is based on the margin of the duration T1 with respect to the reference time T0 when the secondary battery 33 is determined to be normal. You can know the degree of deterioration.

  For example, the secondary battery 33 that has not deteriorated at all and the secondary battery 33 that has deteriorated to the extent that the light source 2 is turned off immediately after the lapse of the reference time from the start of lighting are both determined to be normal, but have a duration T1. The former is longer than the latter. In short, in the secondary battery 33 that has not deteriorated at all, the duration T1 is sufficiently long, and the margin (T1-T0) with respect to the reference time T0 is sufficiently large, whereas in the deteriorated secondary battery 33, the duration is long. T1 becomes shorter and the margin with respect to the reference time T0 becomes smaller. Therefore, the deterioration degree of the secondary battery 33 is represented by the margin of the duration T1 with respect to the reference time T0, that is, the magnitude of the difference value between the duration T1 and the reference time T0. Is going on. Thus, it is possible to evaluate the deterioration degree of the secondary battery 33 from the magnitude of the margin of the duration T1 with respect to the reference time T0.

  Here, the margin of the duration T1 with respect to the reference time T0 may be replaced with an index indicating the deterioration degree of the secondary battery 33 in the evaluation unit 15, and the index may be evaluated as the state of the secondary battery 33. Further, the margin of the duration T1 with respect to the reference time T0 may be obtained at the inspection terminal 4 that has obtained the duration T1 from the apparatus main body 3 as an evaluation result, and the deterioration degree of the secondary battery 33 at the inspection terminal 4 may be obtained. It may be replaced with an index representing.

  Furthermore, according to the configuration of the present embodiment, since the inspection result is presented by the presentation unit 43 of the inspection terminal 4, the emergency lighting fixture 5 including the apparatus body 3 itself does not require a presentation unit for presenting the inspection result. Thus, there is an advantage that the emergency lighting fixture 5 can be reduced in size and cost.

  By the way, as a modification of the present embodiment, a presentation unit (not shown) for presenting an inspection result or an inspection start instruction for giving an inspection start instruction to the apparatus main body 3 itself constituting the emergency lighting fixture 5. An emergency lighting device 1 including an operation switch (not shown) is also conceivable. In this configuration, the operator can start the inspection of the secondary battery 33 by operating the operation switch provided in the emergency lighting fixture 5, and the result is presented from the presentation unit of the emergency lighting fixture 5. The terminal 4 becomes unnecessary.

(Embodiment 2)
The emergency lighting device 1 of the present embodiment is different from the emergency lighting device 1 of the first embodiment in that the evaluation unit 15 evaluates the lifetime of the secondary battery 33 as the state of the secondary battery 33. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and detailed description thereof is omitted.

  In the present embodiment, the storage unit 16 stores time durations T1 obtained by a plurality of inspections in time series. The evaluation unit 15 obtains a change in the duration T1 with the passage of time from a plurality of past durations T1 stored in the storage unit 16, and based on the change and the duration T1 at the latest inspection. The lifetime of the secondary battery 33 is predicted. The lifetime of the secondary battery 33 evaluated by the evaluation unit 15 is presented by the presentation unit 43 as an evaluation result of the evaluation unit 15 together with the presence or absence of abnormality of the secondary battery 33 and the margin of the duration T1 with respect to the reference time T0. Is done.

  Hereinafter, a method for predicting the lifetime will be described with reference to FIG. In FIG. 3, the elapsed time from the start of inspection is plotted on the horizontal axis, the battery voltage value is plotted on the vertical axis, and as an example, the results when the secondary battery 33 that has been used for about three years has been repeatedly checked three times. Are shown as “C1” for the first time, “C2” for the second time, and “C3” for the third time. Here, the third inspection is performed at 30-day intervals, and the duration is shortened by the time t12 from the second inspection to the third inspection, and from the first inspection to the third inspection. An example in which the duration is shortened by time t11 (> t12) until now.

  The evaluation unit 15 first determines the state of the secondary battery 33 (the presence / absence of an abnormality or a reference) based on the length of the worst (shortest) duration T1 among a plurality of durations stored in the storage unit 16. The margin of the duration T1 with respect to the time T0) is evaluated. In the case of FIG. 3, since the duration T1 at the latest (third) inspection is the shortest, the evaluation unit 15 sets the difference value (T1-T0) between the duration T1 and the reference time T0 with respect to the reference time T0. The margin t10 of the duration T1 is set.

  Furthermore, the evaluation unit 15 compares the third duration T1 with the durations of the past two times to obtain a change in duration due to performance deterioration of the secondary battery 33, and based on this change, the secondary The life time of the battery 33 (that is, the time when the duration T1 decreases to the specified time T0) is obtained. In the case of FIG. 3, the evaluation unit 15 changes the rate of change in duration per day (t12 / 30) from the second inspection to the third inspection, and from the first inspection to the third inspection. The rate of change in duration per day (t11 / 60) is obtained. Next, the evaluation unit 15 compares the obtained two change rates, and calculates the lifetime of the secondary battery 33 using the larger change rate and the margin t10 (= T1-T0). That is, the evaluation unit 15 calculates the number of days until the life of the secondary battery 33 by dividing the margin t10 by the rate of change.

  According to the emergency lighting device 1 of the present embodiment described above, the evaluation unit 15 can predict the lifetime of the secondary battery 33 by using a plurality of durations stored for each inspection. It becomes possible to manage the secondary battery 33 in detail. That is, the operator can use the presented life time as a guide for the replacement time of the secondary battery 33, and there is an advantage that the management of the secondary battery 33 can be easily managed.

  Moreover, the memory | storage part 16 may not be in the apparatus main body 3 which comprises the emergency lighting fixture 5, for example, may be provided in the inspection terminal 4. FIG. In this case, by providing the storage unit 16, it is possible to avoid the emergency lighting fixture 5 from becoming large or expensive.

  Other configurations and functions are the same as those of the first embodiment.

(Embodiment 3)
In the emergency lighting device 1 of the present embodiment, as shown in FIG. 4, the light source 2 includes an LED (light emitting diode), and the communication unit 17 that transmits the inspection result to the inspection terminal 4 transmits the light from the light source 2 to the transmission medium. The point which performs visible light communication utilized for is different from the emergency illuminating device 1 of Embodiment 1. FIG.

  The communication unit 17 according to the present embodiment realizes visible light communication in which desired data is transmitted by modulating the amplitude of visible light emitted from the light source 2 by controlling blinking of the light source 2. The communication unit 17 receives an evaluation result (the presence / absence of an abnormality and a margin of the duration T1 with respect to the reference time T0) from the evaluation unit 15, and the communication unit 17 transmits the evaluation result to the inspection terminal 4 by visible light communication. The data is transmitted to the transmission / reception unit 41. Further, in the present embodiment, the duration T1 itself is also transmitted from the communication unit 17 to the transmission / reception unit 41 of the inspection terminal 4 by visible light communication. The inspection terminal 4 receives the visible light from the light source 2 by the transmission / reception unit 41 and demodulates it, thereby acquiring data representing the inspection result (the evaluation result of the evaluation unit 15 and the duration T1) from the apparatus body 3.

  In the present embodiment, the communication unit 17 transmits, for example, the duration T1 as 6-digit (6-bit) binary data as shown in FIG. FIG. 5 shows the correspondence between the duration (unit: minute) and binary data (signal). Thereby, the data representing the duration T1 in the range of 0 to 60 minutes in increments of 1 minute can be transmitted from the communication unit 17 to the inspection terminal 4.

  As described above, when the visible light communication using the LED as the light source 2 is adopted, the visible light emitted from the LED has higher directivity than the light emitted from the incandescent lamp or the like. There is an advantage that stable visible light communication is possible without wavelength change. Moreover, since the LED as the light source 2 of the emergency lighting fixture 5 is also used for communication with the inspection terminal 4, the emergency lighting fixture 5 can be compared with the case where a communication LED is required separately from the light source. The configuration can be simplified. Further, since the light source 2 is an LED, it has a longer life than an incandescent lamp and the like, and the labor for replacing the light source 2 can be reduced. In the example of FIG. 4, the communication unit 17 is used only for unidirectional communication from the apparatus main body 3 to the inspection terminal 4, and the reception unit 18 receives the data (inspection start instruction) transmitted from the inspection terminal 4. Although used, the communication unit 17 may also be used to receive data from the inspection terminal 4.

  By the way, in the emergency lighting device 1 of the present embodiment, the evaluation unit 15 evaluates the presence / absence of abnormality of the LED as the light source 2 in addition to the presence / absence of abnormality of the secondary battery 33. Therefore, the apparatus main body 3 measures at least one of a light source voltage value V1 that is a voltage value across the light source 2 and a light source current value I1 that is a current value flowing through the light source 2 when the secondary battery 33 is inspected. A part (not shown) is added as a component of the inspection part. The light source current value I1 is calculated from, for example, a voltage across a resistor connected in series with the light source 2.

  The evaluation unit 15 compares the light source voltage value V1 measured at the time of inspection of the secondary battery 33 with the reference voltage value, in which the both-end voltage value of the light source 2 when the light source 2 is normally lit is preset. Thus, the presence or absence of abnormality of the light source 2 is determined. The abnormality of the light source 2 determined by the evaluation unit 15 includes a failure in an open (open) mode and a failure in a short (short circuit) mode of the LED as the light source 2. That is, when the difference between the light source voltage value V1 and the reference voltage value exceeds a predetermined threshold value, the evaluation unit 15 determines that the light source 2 is abnormal (failure). When a plurality of LEDs are connected in series to form the light source 2, the evaluation unit 15 may compare the light source voltage value V1 with the reference voltage value for each individual LED. The voltage value at both ends of the LED series circuit may be compared with the reference voltage value as the light source voltage value V1.

  Further, the evaluation unit 15 may determine the abnormality of the light source 2 by considering the behavior of the light source current value I1 measured at the time of inspection of the secondary battery 33 in addition to the light source voltage value V1. In this case, for example, the evaluation unit 15 compares the voltage-current characteristics of the LED as the light source 2 with the light source voltage value V1 and the light source current value I1 measured at the time of inspection to determine whether the light source 2 is abnormal. . Alternatively, the evaluation unit 15 may determine the abnormality of the light source 2 from the behavior of the light source current value I1 measured during the inspection of the secondary battery 33 instead of the light source voltage value V1.

  Furthermore, in this embodiment, the time measuring unit 14 also measures the cumulative lighting time of the light source 2 separately from the duration T1, and the evaluation unit 15 has a function of evaluating the lifetime of the light source 2 based on the cumulative lighting time. Have. Here, the timer unit 14 measures the cumulative value of the time during which the switch 35 is turned on and the power is supplied to the lighting circuit 34 as the cumulative lighting time of the light source 2. FIG. 6 represents the cumulative lighting time of the light source 2 with the horizontal axis as time elapsed, and the periods indicated by “t21” and “t22” in the figure are the periods when the switch 35 is off.

  The evaluation unit 15 sets the accumulated lighting time as the rated life of the light source 2 in advance as the life time, and compares the life time with the cumulative lighting time measured by the timer unit 14, thereby comparing the light source 2. Determine the lifetime. Specifically, the evaluation unit 15 determines that the light source 2 is at the end of the lifetime when the cumulative lighting time reaches the warning time T11 set to 90% of the lifetime T10 as shown in FIG. The fact that the end of the life is reached is transmitted from the communication unit 17 to the inspection terminal 4. At this time, data representing the difference between the lifetime T10 and the cumulative lighting time, that is, the remaining lifetime of the light source 2 may be transmitted from the communication unit 17 to the inspection terminal 4.

  According to the above-described configuration, in addition to the presence / absence of abnormality of the secondary battery 33, the presence / absence of abnormality of the light source 2 and the life time are also managed. There is an advantage that measures such as the entire exchange can be taken quickly. Therefore, the emergency lighting device 1 can reliably turn on the light source 2 at the time of a power failure of the commercial power supply 6 and can reliably transmit the inspection result to the inspection terminal 4 by visible light communication at the time of inspection.

  In the present embodiment, an example in which the light source 2 is an LED is shown. However, the light source 2 is not limited to an LED, and may be a semiconductor light emitting element, and may be, for example, an organic EL (Electro Luminescence) element.

  Other configurations and functions are the same as those of the first embodiment.

  In each of the above-described embodiments, an emergency light is illustrated as the emergency lighting device 1, but the emergency lighting device 1 is not limited to the emergency light, and is an illumination that turns on the light source 2 by the output of the secondary battery 33 at the time of power failure of the normal power supply. Any instrument can be used. In other words, the emergency lighting fixture 1 here turns on the light source 2 by supplying power from the normal power supply when the normal power supply is energized, and turns on the light source 2 by supplying power from the secondary battery 33 when the normal power supply is interrupted. A guide light may be used.

DESCRIPTION OF SYMBOLS 1 Emergency lighting device 2 Light source 3 Apparatus body 4 Inspection terminal 5 Emergency lighting fixture 6 Commercial power supply (ordinary power supply)
DESCRIPTION OF SYMBOLS 12 Inspection start part 13 Voltage measurement part 14 Time measuring part 15 Evaluation part 16 Memory | storage part 17 Communication part 32 Charging circuit 33 Secondary battery 34 Lighting circuit 43 Presentation part

Claims (5)

  A lighting circuit that turns on the light source, a secondary battery that supplies power to the lighting circuit in the event of a power failure of the normal power supply, and a charging circuit that receives power supply from the normal power supply when the normal power supply is energized and charges the secondary battery And an inspection unit that inspects the secondary battery, and the inspection unit stops power supply from the charging circuit to the secondary battery and supplies power from the secondary battery to the lighting circuit. An inspection start unit that turns on the light source and starts the inspection, a voltage measurement unit that measures a voltage value between both ends of the secondary battery, and a measurement value of the voltage measurement unit are determined in advance from the start point of the inspection. A time measuring unit that measures the time required to reach a specified value as a duration, and an evaluation unit that evaluates the state of the secondary battery including at least the presence or absence of abnormality of the secondary battery based on the length of the duration And the evaluation Emergency lighting apparatus characterized by having a presentation section for presenting the results of evaluation of.   The inspection unit includes a storage unit that stores the duration, and the evaluation unit calculates a change in the duration with time from the plurality of past durations stored in the storage unit. 2. The emergency lighting device according to claim 1, wherein the life time of the secondary battery is evaluated as a state of the secondary battery based on the change and the duration of the latest inspection. .   The apparatus main body that holds the light source and the inspection terminal that includes the presentation unit are provided as separate bodies, the light source includes a semiconductor light emitting element, and the apparatus main body includes the duration and evaluation of the evaluation unit. A communication unit that transmits data including at least one of the results to the inspection terminal, and the communication unit transmits the data to the inspection terminal by visible light communication using visible light emitted from the light source as a medium. The emergency lighting device according to claim 1, wherein the emergency lighting device is provided.   The light source includes a semiconductor light emitting element, and the inspection unit further includes a light source measurement unit that measures at least one of a voltage value across the light source and a current flowing through the light source during the inspection, and the evaluation unit includes the evaluation unit, The emergency lighting device according to any one of claims 1 to 3, wherein the presence or absence of abnormality of the light source is evaluated based on a measurement value of a light source measurement unit.   An emergency lighting device according to any one of claims 1 to 4, wherein the lighting device, the secondary battery, and the charging circuit are provided in a fixture body together with the light source. Lighting equipment.

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