JP4428398B2 - Lighting device and lighting system - Google Patents

Description

  The present invention relates to an illuminating device having an inspection function, such as a guide light or an emergency light, which turns on a lamp with an emergency power source such as a secondary battery when a normal power source fails.

  The inspection of guide lights and emergency lights is obligated by the Fire and Disaster Management Agency Notification, Building Standards Law, etc., but by regulation, the guide lights are used for 20 minutes or 60 minutes, and in the case of emergency lights, the lamps are used effectively for 30 minutes. It must be lit at the emergency. Therefore, in order to keep the light on for a long time in this way, the normal checker hangs a weight on the pulling wheel of the check switch to see whether the lamp can be effectively lit within the specified time. It was necessary and very laborious.

  Therefore, Japanese Patent Application No. 2002-279760 discloses a method of automating the inspection work in order to save labor of the inspection work. In the lighting device in the above-described disclosure, in order to perform an accurate inspection, the energization time of the normal power supply is set to a predetermined charging time (24 for the guide light) so that the secondary battery is not inspected in a state where it is not fully charged. The inspection is not started until the time reaches 48 hours for emergency lights.

In Patent Document 1, if the inspector turns on the inspection switch for a short time, a predetermined inspection operation is performed by the inspection sequence means, and if there is an abnormality in the secondary battery, the display means displays the secondary battery. There has been proposed a lighting device that automates battery inspection work and saves labor.
JP-A-8-185987

  In Japanese Patent Application No. 2002-279760, it is possible to prevent the secondary battery from being inspected in a state where it is not fully charged, but a predetermined charging time (electricity necessary for the secondary battery to perform inspection by discharging for a specified time) If a short-time power outage (for example, an instantaneous power outage or an erroneous operation of the inspection switch or breaker) occurs before reaching the amount of time), inspection can be performed if the specified charging time does not elapse after the power is restored. It will not be in a state. In addition, even if a short-time power failure occurs in a state where the predetermined charging time has been reached and can be inspected, there is a problem that the inspection cannot be performed unless charging is performed for a predetermined time after power recovery.

  The present invention has been made in view of the above points, and the object of the present invention is to make sure that inspection can be performed even in a place where an instantaneous power failure is likely to occur or a place where an inspection switch can be easily pressed. There is.

  In order to solve the above-described problems, the invention of claim 1 includes a lamp 2 as a light source, a secondary battery 1 for supplying power to the lamp 2, and an external regular power source AC as shown in FIG. Charging means (power supply circuit unit 4 and charging unit 5) that can be inspected when the secondary battery 1 is charged by supplying power from the power source and charged for a predetermined time, and at least when the power supply AC is out of power 2 Lighting means (switch element Q and lighting circuit section 6) for lighting the lamp 2 by supplying power from the secondary battery 1, a charge detection section 8 for detecting whether or not the secondary battery 1 is charged by the charging means, and the secondary battery A voltage detection unit 9 that detects the voltage of 1, an inspection unit (inspection function of the control unit 7) that inspects the secondary battery 1 by forcibly lighting the lamp 2 for a predetermined inspection time by the lighting unit, and at least One or more including the state of charge of the secondary battery 1 At least one of monitoring means for constantly monitoring the operating state (monitoring function of the control unit 7) and a charging time after the normal power source AC is restored after a power failure and a discharging time after the common power source AC is energized In the lighting device having the counting means (timer function of the control unit 7), the charging time count value and the discharge when the common power source fails during the charging time counting as shown in FIG. From the time count value, a supplementary charging time after power recovery necessary for making the secondary battery have the same amount of electricity as a state where a predetermined charging time has elapsed is made variable.

  The invention of claim 2 comprises a plurality of lighting devices according to claim 1 and a control device that exchanges data with each lighting device, wherein the control device is a check result of the lighting device or It is an illumination system characterized in that monitoring result data is acquired and stored, and whether or not there is an abnormality in the lighting device is determined based on the stored inspection result or history of the monitoring result.

  According to the present invention, since the auxiliary charging time is set according to the charging time until the power failure occurs and the discharged time, even if the power failure occurs in a state where the predetermined charging time has not elapsed, the time until the inspection becomes possible after the power recovery. Time can be shortened.

(Prerequisite configuration)
As shown in FIG. 1, the illuminating device as a premise of the present invention is connected to a secondary battery 1 serving as an emergency power source, a lamp 2 composed of an incandescent lamp or a discharge lamp, and a regular power source (commercial power source AC). A check switch 3 that opens and closes the power supply path, a power supply circuit unit 4 that is connected to the power supply path via the check switch 3 and that steps down and stabilizes the alternating current supplied from the commercial power supply AC to obtain a desired direct current; The charging unit 5 that charges the secondary battery 1 with DC power output from the unit 4, the lighting circuit unit 6 that lights the lamp 2 by power supply from the secondary battery 1, and the lighting circuit unit 6 from the secondary battery 1 A switch element Q that opens and closes a power supply path to the power source, and a control unit 7 that detects a power failure and power recovery of the commercial power supply AC to turn on and off the switch element Q and detect abnormalities in the secondary battery 1 and the lamp 2 , Indicator light to notify abnormality detection 3 is charged with the power supplied from the commercial power supply AC, and the secondary battery 1 is charged, and the lamp 2 that is an emergency light is turned on by the power supply from the secondary battery 1 when the commercial power supply AC fails. is there.

  The control unit 7 includes a microcomputer having a timer function as a main component, and includes a charge detection unit 8 that detects the presence or absence of a charging current flowing from the charging unit 5 to the secondary battery 1, and a voltage of the secondary battery 1 (hereinafter, “ A voltage detection unit 9 for detecting the battery voltage), a lighting detection unit 10 for measuring the current (lamp current) flowing from the lighting circuit unit 6 to the lamp 2 and detecting whether the lamp 2 is lit or not, and each detection A determination unit 11 that comprehensively determines abnormality of the secondary battery 1 and the lamp 2 from the detection results of the units 8, 9, and 10 and a storage unit 12 that includes a nonvolatile memory such as an EEPROM are provided. In addition, the control unit 7 forcibly turns on the lamp 2 for a predetermined inspection time by the lighting circuit unit 6 to inspect the secondary battery 1 and a monitoring function to constantly monitor the charging state of the secondary battery 1. And have. That is, in this configuration example, the control unit 7 constitutes an inspection unit and a monitoring unit, and the determination unit 11 constitutes an abnormality detection unit. The indicator lamp 13 is formed of a light emitting diode and is driven by the determination unit 11 to emit light.

  When power is supplied from the commercial power supply AC (always), the secondary battery 1 is charged by the charging unit 5 and the switch element Q is turned off by the control unit 7 to turn off the lamp 2. When the power supply from the commercial power supply AC is stopped due to a power failure (emergency), the charge detection unit 8 no longer detects the charging current, and the control unit 7 turns on the switch element Q. Thus, power can be supplied from the secondary battery 1 to the lighting circuit section 6 to light the lamp 2. When the power supply from the commercial power supply AC is resumed due to the power recovery, the power detection is detected by the charge detection unit 8 to detect the power recovery, and the switch element Q is turned off by the control unit 7. The power supply from the secondary battery 1 to the lighting circuit unit 6 is stopped, and the lamp 2 is turned off.

  The operation of the control unit in this configuration example will be described with reference to the flowchart of FIG. The feature of this configuration example is that when a power failure occurs for a short time (for example, 3 seconds), the charging time count is continued or maintained. # In the flowchart means a process step number.

  The control unit 7 detects the presence or absence of a charging current by the charge detection unit 8 and counts the charging time of the secondary battery 1 (# 10, # 20). When a power failure of the commercial power supply AC is detected (# 30), the charging time count value after power recovery is stored in the storage unit 12 made of a nonvolatile memory such as EEPROM (# 40), and the charging time count value is reset. Then (# 41), the switch element Q is turned on and the lamp 2 is turned on by power supply from the secondary battery 1 (# 50). In addition, the operating power supply of the control part 7 at the time of a power failure is supplied from the secondary battery 1. FIG.

  Here, when the commercial power supply AC recovers (# 60), it is determined whether the power failure time is short (# 70), and if it is short time, the charging time before the power failure stored in the storage unit 12 is determined. The count value is read out (# 71), and the charging time is continuously counted from the count value. If the charging time is not short, the charging time from the time of power recovery is counted again from the initial value (the value reset at # 41). As shown in FIG. 3, whether or not the power failure time is short is determined by whether or not the continuous power failure time (Ta) is within a predetermined time (for example, within 3 seconds) or the cumulative power failure time (Tb1 + Tb2 + Tb3). ) Is within a predetermined time, and any determination method may be used.

  When the control unit 7 monitors the state of the inspection switch 3 and detects that the inspection switch 3 is operated at any time when the commercial power source AC is not interrupted, the charging time up to that point exceeds the predetermined charging time. If it exceeds, the switch element Q is turned on to perform the inspection process, and if not, the inspection process is not performed (# 80, # 90).

  In this configuration example, as shown in FIG. 4, even if a power failure occurs for a short time before reaching the predetermined charging time, the charging time is continuously counted. For example, due to an instantaneous power failure or an erroneous operation such as an inspection switch or a breaker. If a power failure occurs, the inspection can be performed without waiting for a predetermined charging time to elapse from the initial value. Moreover, even if a short-time power failure occurs after the predetermined charging time is reached, it is possible to continue the checkable state.

  FIG. 5 shows a modification of this configuration example. In this configuration example, as described in Embodiment 7 of Japanese Patent Application No. 2002-279760, a communication line L between a plurality of lighting devices Ai (i = 1, 2,..., N) and each lighting device. This is an emergency light or guide light illumination system configured with a control device B that transmits and receives data via the control device B. This lighting system also has the same effect because the inspection request trigger is changed to the signal from the control device B instead of the signal from the inspection switch 3.

  The lighting device of FIG. 5 does not include the inspection switch 3 and the indicator lamp 13, the communication unit 15 for transmitting and receiving data via the communication line L, and the address setting unit 16 for setting an address for communication. 1 is provided in common with the illumination device of FIG.

  The address setting unit 16 is configured by a dip switch or the like, and a group number for specifying a group of a plurality of lighting devices in addition to an address unique to each lighting device Ai (i = 1, 2,..., N). Can also be set, and addresses are set when the lighting system is constructed.

  The control device B is a non-volatile memory composed of a communication means that exchanges data with the illumination device Ai (i = 1, 2,..., N) via the communication line L, a control means that includes a microcomputer, and an EEPROM. Memory etc. However, since such a control device B can be realized by a conventionally well-known technique, illustration and description of a detailed configuration are omitted.

  In this configuration example, the control device B designates the unique address i of each lighting device Ai, and regularly transmits command data for starting inspection periodically (for example, once every three months), and receives this command data. In the lighting device Ai, the control unit 7 interprets the command data received by the communication unit 15 and starts an inspection process, turns on the switch element Q and turns on the lamp 2 by supplying power from the secondary battery 1. Periodic inspection is performed in accordance with a command from the control device B for each lighting device Ai. In addition, each lighting device Ai constantly monitors the state of the secondary battery 1 separately from the periodic inspection performed once every three months, and the determination unit 11 comprehensively determines the inspection result and the monitoring result of the periodic inspection. Then, the presence or absence of abnormality in the secondary battery 1 and the lamp 2 is determined, and a result having a high priority is selected and transmitted to the control device B. Therefore, the person who performs the inspection work can grasp the inspection result of each lighting device Ai by the control device B without going to the installation place of each lighting device Ai and performing the inspection, thereby saving labor of the inspection work. Is.

FIG. 6 shows another modification of the presupposed configuration. As described in the eighth embodiment of Japanese Patent Application No. 2002-279760, this configuration example is configured as an emergency light or a guide light of a type that lights the lamp at all times and in an emergency. That is, as shown in FIG. 6, the output of the power supply circuit unit 4 is input not only to the charging unit 5 but also to the lighting circuit unit 6, and the lamp 2 is lit by power supply from the commercial power supply AC at all times. The switch element Q is turned on by the control unit 7 and the lamp 2 is turned on by supplying power from the secondary battery 1. In this configuration example, since the lamp 2 is lit at all times, it is necessary to add detection of lighting / non-lighting of the lamp 2 to the constantly monitored items (normal state processing of # 10).
5 and 6 can be similarly implemented in any of the configurations described below.

(Related configuration 1)
The operation of the control unit in this configuration example is shown in the flow of FIG. The feature of this configuration example is that, when a power failure occurs before a predetermined charging time of the secondary battery elapses, the determination time at the time of discharging is changed according to the charging time up to that time. In addition, since the structure of the illuminating device in this structural example is the same as a premise structure, illustration and description are abbreviate | omitted.

  In Japanese Patent Application No. 2002-279760, after a predetermined charging time (for example, 24 hours) elapses, the inspection becomes possible, and when there is an inspection request in the inspectable state, discharge is performed for a specified time (for example, 20 minutes) (FIG. 8). . On the other hand, in this configuration example, even if the predetermined charging time has not elapsed, if there is an inspection request, the secondary battery is discharged and the inspection is performed. For example, when an inspection request is received with a charging time of 18 hours for a guide light, only 75% of the originally required charging time has elapsed, so for example, the determination is made by discharging for 15 minutes corresponding to 75% of the specified time. Perform (FIG. 9). In the graph showing the relationship between battery voltage and time, the unit [h] on the horizontal axis means time, and the unit [m] means minute. The same applies to each of the following configurations.

  As shown in FIG. 10, the determination time is calculated by shortening the determination time relative to the specified time if the charge time is shorter than the predetermined charge time (charge time required for full charge). FIG. 10 shows an example in which the determination time is changed in proportion to the charging time, but the degree of change is not limited to the proportional relationship, and for example, the slope or intercept is changed depending on the charge / discharge efficiency of the secondary battery. Or a calculation formula other than a linear function. This also applies to FIGS. 14, 17, and 20 described below.

  The operation of the control unit in this configuration example will be described with reference to the flowchart of FIG. In the normal state process, the control unit detects the presence or absence of a charging current by the charge detection unit, and counts the charging time of the secondary battery (# 10, # 20). If there is an inspection request (# 80), the control unit calculates a determination time based on the charging time up to that point (# 85), changes the inspection determination time, and turns on the switch element Q. An inspection process is performed (# 90).

  As described above, in this configuration example, even when the predetermined charging time has not elapsed, by changing the determination time according to the charging time at that time, it becomes a state that can always be inspected in the charged state. It is possible to detect deterioration of charge / discharge efficiency at an early stage.

(Related configuration 2)
The operation of the control unit in this configuration example is shown in the flow of FIG. The feature of this configuration example is that, when a power failure occurs when a predetermined charging time has elapsed for the secondary battery, the charging time until the inspection is possible after power recovery is changed according to the time discharged by the power failure. It is in. In addition, since the structure of the illuminating device in this structural example is also the same as a premise structure, illustration and description are abbreviate | omitted.

  In Japanese Patent Application No. 2002-279760, when a power failure occurred after the power was charged for a predetermined time and power was restored, the test could not be performed until a predetermined charge time (for example, 24 hours) had passed again (FIG. 12). On the other hand, in this configuration example, when power is restored from a state charged for a predetermined time (full charge state) and power is restored, it is determined from the discharge time, and how much more charging is required is equivalent to the state after the predetermined charging time has elapsed. If the amount of electricity is reached (hereinafter referred to as “supplementary charging time”) and charging is performed by that amount, inspection is possible. For example, in a guide lamp, if a power failure is restored for 15 minutes after being charged for a predetermined time, only 75% of the specified time for inspection by discharging of the secondary battery is discharged, equivalent to 75%. If it is charged for 18 hours, which is 75% of the above, the inspection is possible (FIG. 13). In the calculation method of the auxiliary charging time, if the discharging time (power failure time) is shorter than the specified time, the auxiliary charging time is shortened by a corresponding amount (FIG. 14).

  The operation of the control unit in this configuration example will be described with reference to the flowchart of FIG. In the normal state process, the control unit detects the presence or absence of a charging current by the charge detection unit, and counts the charging time of the secondary battery (# 10, # 20). Here, when the commercial power supply AC is out of power (# 30), it is determined whether it has been charged for a predetermined time (# 42), and if it is charged, a process of counting the discharge time and storing it in the storage unit is started (# 43) The switch element Q is turned on and the lamp is turned on by power supply from the secondary battery (# 50). If the battery has not been charged for a predetermined time in # 42, the emergency lighting is performed without counting the discharge time. When the commercial power supply AC recovers (# 60), the discharge time count value is read from the storage unit, and the control unit performs the calculation of FIG. 14 to calculate the necessary supplementary charging time. When the auxiliary charging time has elapsed, the inspection is possible. When the emergency lighting is performed without counting the discharge time, it is considered that the discharge time is equal to the specified time (20 minutes), and the auxiliary charge time is equal to the predetermined time (24 hours).

  As described above, in this configuration example, when a power failure occurs after a predetermined charging time has elapsed, the supplementary charging time is set according to the discharging time, so the time until the inspection can be performed after the power recovery can be shortened.

(Embodiment 1)
The operation of the control unit in this embodiment is shown in the flow of FIG. The feature of this embodiment is that, when a power failure occurs in a state where the battery has not been charged for a predetermined time, an auxiliary charging time after power recovery is determined according to a charging time until the power failure occurs and a discharging time due to the power failure. In addition, since the structure of the illuminating device in this embodiment is also the same as a premise structure, illustration and description are abbreviate | omitted.

  In the related configuration 2, since the auxiliary charging time is calculated from only the discharging time, the auxiliary charging time cannot be calculated if a power failure occurs while the battery is not charged for a predetermined time. On the other hand, in the present embodiment, the supplementary charging time can be calculated even if a power failure occurs in a state where the charging is not performed for a predetermined time. For example, in a guide light, if a power failure occurs for 18 minutes with a charging time of 18 hours, the charging time is 75% for a predetermined charging time of 24 hours, and the discharging time is 25% for a specified time of 20 minutes. If the battery is charged for 12 hours corresponding to 25% = 50%, the inspection is possible (FIG. 16). In the method for calculating the auxiliary charging time, the auxiliary charging time is determined by subtracting the discharging electric amount calculated based on the discharging time count value from the charging electric amount calculated based on the charging time count value. If the battery is completely discharged, the auxiliary charging time is a predetermined time. The closer to the fully charged state, the shorter the auxiliary charging time (FIG. 17).

  The operation of the control unit in this embodiment will be described with reference to the flowchart of FIG. In the normal state process, the control unit detects the presence or absence of a charging current by the charge detection unit, counts the charging time of the secondary battery, and stores it in the storage unit (# 10, # 21). Here, when the commercial power supply AC fails (# 30), the discharge time is counted and stored in the storage unit (# 43), the switch element Q is turned on, and the lamp is turned on by supplying power from the secondary battery. Turn on the emergency light (# 50). When the commercial power source AC recovers (# 60), the charging time count value and the discharging time count value are read from the storage unit, and the controller calculates the auxiliary charging time (# 73). When the auxiliary charging time has elapsed, the inspection is possible.

  As described above, in this embodiment, since the auxiliary charging time is set according to the charging time until a power failure and the time discharged after the power failure, even if a power failure occurs in a state where the predetermined charging time has not elapsed, the inspection can be performed after the power recovery Time to become can be shortened.

  In the related configuration 2 or the first embodiment, when the operation of the inspection switch is detected in # 80 of FIG. 11 or FIG. 15 before the supplementary charging time has elapsed, the charging time exceeds the predetermined charging time. Judgment is not made and inspection processing is not performed. If the operation of the inspection switch is detected in # 80 after the auxiliary charging time has elapsed, it is determined that the charging time has exceeded the predetermined charging time, and inspection processing is performed (# 90).

(Related configuration 3)
The operation of the control unit in this configuration example is shown in the flow of FIG. The feature of this configuration example is that when the secondary battery is restored after a power failure occurs with the predetermined charging time elapses, before the predetermined charging time elapses from the discharge time due to the power failure and the charging time after the power recovery. It is to determine the judgment time when an inspection request comes. In addition, since the structure of the illuminating device in this structural example is also the same as a premise structure, illustration and description are abbreviate | omitted.

  In the related configuration 1, since the determination time is calculated only from the charging time, for example, if a power failure occurs after a predetermined charging time has elapsed, and then an inspection request is received during the power recovery, the amount of electricity in the secondary battery is sufficient. In some cases, the determination time may be set short. On the other hand, in the present configuration example, the discharge time that occurs when a predetermined charge time has elapsed is also counted, so that the determination time can be calculated in consideration of the discharge time and the charge time. For example, in a guide light, if there is a power outage for 10 minutes after being charged for a predetermined time and an inspection request comes in after 6 hours have passed since power recovery, the discharge time is equivalent to 50% of the specified time of 20 minutes. Is 25% with respect to the predetermined charging time of 24 hours, so the determination is made by discharging for 15 minutes corresponding to 100% -50% + 25% = 75% with respect to the specified time (FIG. 19). The determination time is calculated by subtracting the count value of the charging time after power recovery from the count value of the discharging time after the predetermined charging time has elapsed, and if the predetermined charging time has elapsed, the determination value becomes the specified time. The determination time becomes shorter as the state is completely discharged (FIG. 20).

  The operation of the control unit in this configuration example will be described with reference to the flowchart of FIG. In the normal state process, the control unit detects the presence or absence of a charging current by the charge detection unit, counts the charging time of the secondary battery, and stores it in the storage unit (# 10, # 21). Here, when the commercial power supply AC is out of power (# 30), the charging time count value stored in # 21 is read out to determine whether it has been charged for a predetermined time (# 42). The process of counting and storing in the storage unit is started (# 43), the switch element Q is turned on, and the lamp is lit up by power supply from the secondary battery (# 50). If it is determined in # 42 that the battery has not been charged for a predetermined time, the discharge time is not counted and the emergency light is turned on. When the commercial power supply AC recovers (# 60), the charging time is counted again from the initial value. If there is an inspection request at any time when the commercial power supply AC is not out of power (# 82), the charging time count value and the discharging time count value up to that point are read from the storage unit, and the control determination time is calculated by the control unit (# 83), the switch element Q is turned on to perform the inspection process (# 90).

  As described above, in this configuration example, since the determination time is set based on the time when the power is discharged from the fully charged state and discharged and the charge time until the inspection request comes after power recovery, the state where the inspection is impossible is reduced. I can do it. Moreover, since the state after the predetermined charging time has passed is used as a reference, the determination accuracy can be improved compared to the related configuration 1, and the capacity reduction can be detected at an early stage.

(Embodiment 2)
The operation of the control unit in this embodiment is shown in the flow of FIG. A feature of the present embodiment is that the auxiliary charging time and the determination time are changed based on a combination of a discharging time due to a power failure and a charging time after power is restored. In addition, since the structure of the illuminating device in this embodiment is also the same as a premise structure, illustration and description are abbreviate | omitted.

  In the first embodiment and the related configuration 3, the auxiliary charging time and the determination time are calculated from the charging time and the discharging time. However, in the first embodiment, if an inspection request comes during supplementary charging, the inspection cannot be performed. Further, in the related configuration 3, since the discharge time is not counted if a power failure occurs while the battery is not charged for a predetermined time, the determination time is calculated only from the charge time after power recovery, and the amount of electricity of the secondary battery is sufficient. Regardless, the determination time may be set short.

  On the other hand, in this embodiment, even during supplementary charging, inspection can be performed by changing the determination time by discharging, and the discharging time is counted even if a power failure occurs while the battery is not charged for a predetermined time. For example, in a guide light, if there is a power failure for 10 minutes after being charged for 18 hours, according to the first embodiment, 75% -50% = 25%, so an auxiliary charging time of 18 hours is set (FIG. 22). Further, if an inspection request is made 12 hours after the start of supplementary charging, 25% + 50% = 75% is obtained according to the related configuration 3, so inspection is performed by discharging for 15 minutes (FIG. 23).

  The operation of the control unit in this embodiment will be described with reference to the flowchart of FIG. In the normal state process, the control unit detects the presence or absence of a charging current by the charge detection unit, counts the charging time of the secondary battery, and stores it in the storage unit (# 10, # 21). Here, when the commercial power source AC has a power failure or inspection request (# 31), the charging time count value and the previous discharge time count value are read from the storage unit, and the control determination time is calculated by the control unit (# 33). Further, a process of counting the discharge time and storing it in the storage unit is started (# 43), the switch element Q is turned on, and an inspection process or an emergency lighting process is performed (# 59). When power is restored (# 60), the charge time count value and the discharge time count value are read from the storage unit, and the auxiliary charge time is calculated by the control unit (# 73).

  As described above, in the present embodiment, by combining the first embodiment and the related configuration 3, it is possible to always check and improve the determination accuracy of the secondary battery.

It is a block circuit diagram which shows the structure used as the premise of this invention. It is a flowchart which shows operation | movement of the structure used as the premise of this invention. It is a time chart which shows the determination method of the operation presence or absence of the inspection switch in the structure used as the premise of this invention. It is a time chart which shows the operation | movement of the structure used as the premise of this invention. It is a block circuit diagram which shows one modification of the structure used as the premise of this invention. It is a block circuit diagram which shows the other modification of the structure used as the premise of this invention. It is a flowchart which shows operation | movement of the structure 1 relevant to this invention. It is explanatory drawing which shows the time change of the battery voltage in a prior art example. It is explanatory drawing which shows the time change of the battery voltage in the structure 1 to which this invention relates. It is explanatory drawing which shows the relationship between the charge time in the structure 1 with which this invention is related, and determination time. It is a flowchart which shows the operation | movement of the structure 2 to which this invention relates. It is explanatory drawing which shows the time change of the battery voltage in a prior art example. It is explanatory drawing which shows the time change of the battery voltage in the structure 2 to which this invention relates. It is explanatory drawing which shows the relationship between the power failure time in the structure 2 to which this invention relates, and charge time. It is a flowchart which shows operation | movement of Embodiment 1 of this invention. It is explanatory drawing which shows the time change of the battery voltage in Embodiment 1 of this invention. It is explanatory drawing which shows the relationship between the amount of electrical charges in Embodiment 1 of this invention, and supplementary charging time. It is a flowchart which shows operation | movement of the structure 3 to which this invention relates. It is explanatory drawing which shows the time change of the battery voltage in the structure 3 to which this invention relates. It is explanatory drawing which shows the relationship between the amount of discharge electricity and the determination time in the structure 3 to which this invention relates. It is a flowchart which shows operation | movement of Embodiment 2 of this invention. It is explanatory drawing which shows control of the auxiliary charge time in Embodiment 2 of this invention. It is explanatory drawing which shows control of the determination time during auxiliary charge in Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Secondary battery 2 Lamp 3 Inspection switch 4 Power supply circuit part 5 Charging part 6 Lighting circuit part 7 Control part 8 Charging detection part 9 Voltage detection part 10 Lighting detection part 11 Judgment part 12 Storage part 13 Indicator light

Claims (2)

A lamp serving as a light source, a secondary battery for supplying power to the lamp, a charging means for charging the secondary battery with power supplied from an external utility power source, and power from the secondary battery at least when the utility power source fails A lighting means for lighting the lamp by supply, a charge detection section for detecting whether or not the secondary battery is charged by the charging means, a voltage detection section for detecting the voltage of the secondary battery, and forcing a predetermined inspection time by the lighting means Inspecting means for inspecting the secondary battery by turning on the lamp automatically, monitoring means for constantly monitoring one or more operating states including at least the charged state of the secondary battery, In the lighting device having a counting unit that counts at least one of a charging time from the power source and a discharging time after a power failure occurs after the common power source is energized, the counting unit is counting the charging time. When the power supply for the power supply fails, the supplementary charging time after power recovery required to make the secondary battery have the same amount of electricity as when the specified charging time has elapsed can be varied from the charging time count value and the discharge time count value. A lighting device characterized by the above. A plurality of lighting devices according to claim 1 and a control device that exchanges data with each lighting device, and the control device acquires and stores data of inspection results or monitoring results of the lighting devices. And the presence or absence of abnormality in an illuminating device is judged based on the history of the stored inspection result or monitoring result, The lighting system characterized by the above-mentioned.

Images