JP4487548B2 - Lighting device and lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely carry out checkout even in a place where an instantaneous power fault tends to take place or in a place allowing a checking switch to be easily pushed, in a lighting system for lighting a lamp by a secondary battery in a power fault. <P>SOLUTION: This lighting system comprises: a lighting means for lighting the lamp 2 by power supply from the secondary battery 1 in a power fault; a checking means for forcibly lighting the lamp 2 over a predetermined checking time by the lighting means to check the secondary battery 1; a monitoring means for always monitoring a plurality of operation states including a charge state of the secondary battery 1; and a counting means for counting at least one of a charge time and a discharge time of the secondary battery 1. The lighting system is so structured that, when a power fault occurs while the counting means is counting the charge time, the counting means continues the charge time count after the recovery of power from the state immediately before the power fault occurrence without initializing the count value if the power fault is ended in a short time. <P>COPYRIGHT: (C)2005,JPO&amp;NCIPI

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 the present invention, in order to solve the above-described problem, as shown in FIG. 1, a lamp 2 as a light source, a secondary battery 1 that supplies power to the lamp 2, and an external power supply AC are used. The secondary battery 1 and charging means (power supply circuit unit 4 and charging unit 5) that can be inspected when the secondary battery 1 is charged for a predetermined time, and the secondary battery 1 at least when the power supply AC is out of power. Lighting means (switch element Q and lighting circuit unit 6) for lighting the lamp 2 by power supply from the battery, a charging detection unit 8 for detecting whether the secondary battery 1 is charged by the charging means, and the voltage of the secondary battery 1 A voltage detection unit 9 for detecting the battery, an inspection unit (inspection function of the control unit 7) for inspecting the secondary battery 1 by forcibly turning on the lamp 2 by a lighting unit for a predetermined inspection time, and at least a secondary battery One or more operation states including one state of charge At least one of a monitoring means (monitoring function of the control unit 7) for constantly monitoring the 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 powered off In the lighting device having the counting means (the timer function of the control unit 7) for counting the power supply AC when a power failure occurs during the charging time counting as shown in FIG. If there is, the count value is not initialized, and the charging time count after power recovery is continued from the state immediately before the occurrence of the power failure.

According to the first aspect of the present invention, even if a short interruption occurs before the predetermined charging time is reached, the charging time is continuously counted. Therefore, the inspection can be performed without waiting for the predetermined charging time to elapse from the initial value again. Will be able to. Moreover, when a short-time power failure occurs after the predetermined charging time has been reached, it is possible to continue the inspectable state.
According to the second aspect of the present invention, even when the predetermined charging time has not elapsed, the determination time is changed according to the charging time at that time, so that the battery can be inspected at all times in the charged state. It is possible to detect the deterioration of the charging / discharging efficiency at an early stage .

According to the third aspect of the present invention, the determination time is changed according to the time when the predetermined charging time has elapsed and the discharge time due to the power failure and the charging time after the power recovery, so that the state where the predetermined charging time has elapsed is used as a reference. Therefore, the determination accuracy can be improved as compared with the second aspect, and the capacity drop can be detected at an early stage.
According to the invention of claim 4 , by obtaining the charge electricity amount and the discharge electricity amount from the charge time and the discharge time, and always calculating the auxiliary charge time and the determination time, it can be in a state that can always be inspected, and The determination accuracy of the secondary battery can be improved.

(Embodiment 1)
As shown in FIG. 1, the lighting device of this embodiment includes a secondary battery 1 serving as an emergency power source, a lamp 2 including an incandescent lamp and a discharge lamp, and a power supply connected to a regular power source (commercial power source AC). An inspection switch 3 that opens and closes the path; a power supply circuit unit 4 that is connected to the power supply path via the inspection 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 the DC power output from the battery, 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 to the lighting circuit unit 6 A switch element Q that opens and closes the power supply path, a control unit 7 that detects power failure and power recovery of the commercial power supply AC to turn on and off the switch element Q, and detects abnormality of the secondary battery 1 and the lamp 2, and the like An indicator lamp 13 for informing the detection; Provided always are those supplied with power from the commercial power source AC to charge the secondary battery 1, to turn on the lamp 2 is very light in power supply from the secondary battery 1 when the commercial power source AC failure.

  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 embodiment, 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 embodiment will be described with reference to the flowchart of FIG. A feature of the present embodiment is that the charging time count is continued or can be checked when a power failure occurs for a short time (for example, 3 seconds). # 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 embodiment, as shown in FIG. 4, even if a short interruption occurs before reaching the predetermined charging time, the charging time is continuously counted. For example, due to an instantaneous interruption or an erroneous operation such as an inspection switch or a breaker. When a power failure occurs, the inspection can be performed without waiting for the 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 configuration of a modification of the present embodiment. 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 the present embodiment, 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 a configuration of another modification of the first embodiment. 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 the present embodiment, 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 embodiments described below.

(Embodiment 2)
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 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 embodiment is the same as Embodiment 1, 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 embodiment, 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 the following embodiments.

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 14 you discussed below, FIG. 17 is the same in FIG. 20.

  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, 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 the present embodiment, even when the predetermined charging time has not elapsed, by changing the determination time according to the charging time at that time, the charging state is always inspectable, and the secondary battery It is possible to detect deterioration of charge / discharge efficiency at an early stage.

( 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 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 Embodiment 1, 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.

( Related configuration 2 )
The operation of the control unit in this configuration example is shown in the flow of FIG. A feature of this configuration example is that, when a power failure occurs in a state where the battery is not charged for a predetermined time, a supplementary 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 structural example is also the same as Embodiment 1, illustration and description are abbreviate | omitted.

In the related configuration 1 , since the auxiliary charging time is calculated only from 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 this configuration example , the auxiliary 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 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 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 supply 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.

In this way, in this configuration example , the auxiliary charging time is set according to the charging time until a power failure and the time discharged after the power failure, so even if a power failure occurs when the predetermined charging time has not elapsed, it can be inspected after power recovery Time to become can be shortened.

In the related configuration 1 or 2 , if 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 does not exceed the predetermined charging time. Judgment and do not perform inspection process 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).

(Embodiment 3 )
The operation of the control unit in this embodiment is shown in the flow of FIG. The feature of this embodiment is that when the secondary battery is restored after a power failure occurs in a state where the predetermined charging time has elapsed, the discharge time due to the power failure and the charging time after the power recovery are before the predetermined charging time elapses. It is to determine the judgment time when an inspection request comes. In addition, since the structure of the illuminating device in this embodiment is also the same as Embodiment 1, illustration and description are abbreviate | omitted.

  In the second embodiment, 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 charging after power recovery, the amount of electricity in the secondary battery is sufficient. Nevertheless, the determination time may be set short. On the other hand, in the present embodiment, 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 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 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 the present embodiment, the determination time is set based on the time when the power is interrupted and discharged from the fully charged state and the charge time until the inspection request comes after the power recovery, so the number of uninspectable states 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 as compared with the second embodiment, and the capacity reduction can be detected at an early stage.

(Embodiment 4 )
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 Embodiment 1, illustration and description are abbreviate | omitted.

In the related configuration 2 and the third embodiment , the auxiliary charging time and the determination time are calculated from the charging time and the discharging time. However, in the related configuration 2 , if an inspection request is received during auxiliary charging, the inspection cannot be performed. In the third embodiment, the discharge time is not counted when a power failure occurs while the battery is not charged for a predetermined time. Therefore, the determination time is calculated only from the charge time after power recovery, and the amount of electricity of the secondary battery is sufficient. 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 from a state where it is charged for 18 hours, 75% -50% = 25% due to the related configuration 2 , so an auxiliary charging time of 18 hours is set (FIG. 22). Furthermore, if an inspection request is made 12 hours after the start of supplementary charging, it will be 25% + 50% = 75% according to the third embodiment, 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 related configurations 2 and 3 , it is possible to always inspect and to improve the determination accuracy of the secondary battery.

It is a block circuit diagram which shows the structure of Embodiment 1 of this invention. It is a flowchart which shows operation | movement of Embodiment 1 of this invention. It is a time chart which shows the determination method of the presence or absence of operation of the inspection switch in Embodiment 1 of this invention. It is a time chart which shows operation | movement of Embodiment 1 of this invention. It is a block circuit diagram which shows the structure of the modification of Embodiment 1 of this invention. It is a block circuit diagram which shows the structure of the other modification of Embodiment 1 of this invention. It is a flowchart which shows operation | movement of Embodiment 2 of 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 Embodiment 2 of this invention. It is explanatory drawing which shows the relationship between the charge time and determination time in Embodiment 2 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 power failure time in the structure 1 to which this invention relates, and charging 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 the structure 2 to which this invention relates. It is explanatory drawing which shows the relationship between the amount of charge electricity, and supplementary charge time in the structure 2 to which this invention relates. It is a flowchart which shows operation | movement of Embodiment 3 of this invention. It is explanatory drawing which shows the time change of the battery voltage in Embodiment 3 of this invention. It is explanatory drawing which shows the relationship between the amount of discharge electricity and determination time in Embodiment 3 of this invention. It is a flowchart which shows operation | movement of Embodiment 4 of this invention. It is explanatory drawing which shows control of the auxiliary charge time in Embodiment 4 of this invention. It is explanatory drawing which shows control of the determination time during the auxiliary charge in Embodiment 4 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 (5)

A lamp serving as a light source; a secondary battery that supplies power to the lamp; and a charging means that can be inspected when the secondary battery is charged with power supplied from an external utility power source and charged for a predetermined time; A lighting means for turning on the lamp by supplying power from the secondary battery when a power failure occurs in the utility power supply, a charge detection unit for detecting whether or not the secondary battery is charged by the charging means, and a voltage for detecting the voltage of the secondary battery A detection unit, an inspection unit that forcibly turns on the lamp for a predetermined inspection time or more by a lighting unit to inspect the secondary battery, and one or more operating states including at least a charged state of the secondary battery are constantly monitored. In an illuminating device having a monitoring means and a counting means for counting at least one of a charging time after a normal power supply is restored after a power failure and a discharging time after a power failure occurs after the normal power supply is energized When a power failure of the utility power source occurs while the counting means is counting the charging time, if the power failure is short, the count value is not initialized and the charging time count after power recovery is continued from the state immediately before the occurrence of the power failure. A lighting device characterized by that. 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 use power is a power failure, the illumination device characterized by varying the inspection time of the secondary battery corresponding to the charging time count value. 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 means for counting at least one of a charging time from the power supply and a discharging time after a power failure occurs after the common power source is energized, the counting means has passed a predetermined charging time When commercial power to the discharge time during the counting from the state has power recovery, the discharge time from the count value and the charging time count value, the illumination device characterized by varying the inspection time of the secondary battery. 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 the secondary battery by turning on the lamp automatically, monitoring means for constantly monitoring one or more operating states including at least the charging state of the secondary battery, In the lighting device having a counting means for counting at least one of a charging time from the power supply and a discharging time after a power failure after the normal power supply is energized, the counting means calculates the charging time and the discharging time. To calculate the difference between the amount of electricity charged and the rated capacity of the secondary battery, and if the charging time is being counted, the supplementary charging required to make the secondary battery have the same amount of electricity as when the specified charging time has elapsed An illumination device characterized in that the inspection time of the secondary battery is varied if the time is counting the discharge time. A plurality of lighting devices according to any one of claims 1 to 4 , and a control device that exchanges data with each lighting device, wherein the control device is data of inspection results or monitoring results of the lighting devices. Is acquired and stored, and the presence or absence of abnormality in the lighting device is determined based on the history of the stored inspection result or monitoring result.

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