JP2013218389A - Alarm and method for controlling the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an alarm for more improving convenience to a user and a method for controlling the alarm.SOLUTION: A gas fire alarm 10 includes: a notification part 13 for, when an abnormal state is detected in a monitoring area, notifying a user of the result; an applied voltage output circuit 16 for, when the abnormal state is not detected, outputting a low level voltage to a gas meter 30, and for, when the abnormal state is detected, outputting a high level voltage to the gas meter 30; and an automatic detection part 12c for regularly determining the presence/absence of a failure part, and for, when the failure part is detected, making the notification part 13 notify a user of the failure. Also, the gas fire alarm 10 includes; an inspection acceptance part 12a for, when a specific operation is performed to an inspection switch 18 installed so as to be operable, accepting an inspection operation; and a control part 12 for, when the inspection operation is accepted by the inspection acceptance part 12a, making the notification part 13 output an alarm sound and an alarm display, and for making the applied voltage output circuit 16 output the high level voltage to the gas meter 30.

Description

  The present invention relates to an alarm device and a control method thereof.

  Conventionally, an alarm device that issues an alarm when an abnormal state occurs has been proposed. Some of these alarm devices output a voltage to an external device in conjunction with the external device. More specifically, when the alarm device is a gas fire integrated alarm device, 6V voltage is normally output from the voltage output circuit to the gas meter (external device) and a gas having a predetermined concentration or more is detected. In order to close the shutoff valve of the gas meter, a voltage of 12V or 18V is output from the voltage output circuit to the gas meter.

  Also, the alarm device is provided with a check switch and the like, and in order to check whether a normal voltage is output even when the check switch is pressed, a voltage of 12 V or 18 V is output from the voltage output circuit to the gas meter. It is like that.

  However, once the shutoff valve of the gas meter is closed, it is difficult for a general user to open the valve. For this reason, when the inspection switch is pressed, a voltage of 12V or 18V is output with a voltage within 25 minutes after the alarm device is turned on, and it exceeds 25 minutes after the alarm device is turned on. There has been proposed an alarm device that outputs a voltage of 6V as a voltage (see Patent Document 1).

  According to this alarm device, when it is within 25 minutes from the power-on, it can be assumed that the worker is near. Therefore, the voltage output is normally performed by outputting a voltage of 12V or 18V and closing the shutoff valve. It can be checked whether the shut-off valve is closed. On the other hand, if it takes more than 25 minutes since the power is turned on, it can be assumed that the worker is not nearby. Therefore, a voltage of 6V is output as a voltage so that the shut-off valve is not closed and convenience is provided to the general user.

Japanese Patent No. 4721664

  However, in the alarm device described in Patent Document 1, for example, after a power failure or the like occurs, the alarm device is notified by a buzzer or sound in order to notify that it has entered a normal monitoring state after the initial delay operation. . The general user suddenly triggered the alarm, so if the inspection switch was pressed because the alarm was triggered, the gas meter shut-off valve was closed and the shut-off valve was opened. Must be returned to the normal state, and it cannot be said that the convenience to the user is sufficiently achieved.

  The present invention has been made in order to solve such a conventional problem, and the object of the present invention is to further reduce the possibility that the user will inadvertently perform the inspection operation, and to the user even more. It is an object of the present invention to provide an alarm device and a control method thereof.

  The alarm device according to the present invention includes a notifying means for notifying the occurrence of an abnormal state in the monitoring region based on a signal from the sensor unit, and a first when no abnormal state is detected in the monitoring region. A voltage output means that outputs a voltage to an external device and outputs a second voltage different from the first voltage to the external device when an abnormal state is detected in the monitoring area, and periodically determines the presence or absence of a failure location. And an automatic inspection means for notifying the failure from the notification means when the alarm is detected, and the inspection operation is performed when a prescribed operation is performed on the inspection switch provided to be operable. When the inspection operation is accepted by the inspection acceptance means and the inspection acceptance means, at least one of an alarm sound and an alarm display is output from the notification means, and the external output device from the voltage output means Characterized in that it comprises a control means for outputting a second voltage.

  According to this alarm device, when a prescribed operation is performed on an inspection switch provided so as to be operable and the inspection operation is accepted, the user can perform the prescribed operation in order to cause the external device to output the second voltage. By making the contents inadvertently performed, it is not necessary to return the external device to a normal state without the operation of the external device such as a gas meter. In addition, since it is provided with automatic inspection means that periodically determines the presence or absence of a failure location and notifies the failure from the notification means when the failure location is detected, the need for independent inspection of the alarm device can be eliminated. In other words, an independent inspection of the alarm device is performed by an alarm display or output of an alarm sound, etc., to confirm whether a failure has occurred, but in the first place, this inspection is regularly inspected by the alarm device itself. This eliminates the need for the user to do this. Therefore, the user does not operate to check the alarm alone, and the possibility that the user performs the specified operation carelessly can be further reduced. Therefore, the possibility that the user inadvertently performs the inspection operation can be reduced, and the convenience to the user can be further improved.

  In the alarm device of the present invention, when the inspection operation is accepted by the inspection accepting means, the control means causes at least one of the alarm sound and the alarm display to be performed, and at a predetermined time from the start of execution of the inspection operation. It is preferable to output the second voltage from the voltage output means to the external device with a time delay.

  According to this alarm device, since the second voltage is output to the external device after a predetermined time from the start of execution of the inspection operation, even if the user performs an inspection operation by mistake, the execution of the inspection operation starts. The second voltage is not output immediately from the point in time, and for example, the alarm device can be turned off before the external device is operated by the second voltage. This eliminates the need for the user to return the external device to a normal state, such as opening a shut-off valve. Therefore, further convenience for the user can be achieved.

  Moreover, it is preferable that the alarm device of the present invention further includes stop acceptance means for accepting a stop operation for stopping the operation of outputting the second voltage from the voltage output means to the external device.

  According to this alarm device, since it further includes stop acceptance means for accepting a stop operation for stopping the operation of outputting the second voltage to the external device, even if the user performs an inspection operation by mistake, for example, the external device The operation of the external device can be prohibited by performing a stop operation before the device operates with the second voltage. Therefore, further convenience for the user can be achieved.

  In the alarm device control method of the present invention, when the occurrence of an abnormal state in the monitoring area is detected based on a signal from the sensor unit, a notification means for notifying the fact, and when the abnormal state in the monitoring area is not detected The voltage output means for outputting the first voltage to the external device and outputting the second voltage different from the first voltage to the external device when an abnormal state is detected in the monitoring area, and periodically determining the presence or absence of a failure location. The alarm control method includes an automatic inspection means for notifying the failure from the notification means when a failure location is detected, and a prescribed operation is performed on the inspection switch provided to be operable If the inspection acceptance process accepts the inspection operation and the inspection operation is accepted in the inspection acceptance process, at least one of the alarm sound and the alarm display is output from the notification means, Characterized in that it comprises a control step of outputting a second voltage from the output means to the external device.

  According to the control method of the alarm device, when a specified operation is performed on an inspection switch provided so as to be operable and the inspection operation is accepted, the second voltage is output to the external device. By making the content inadvertently performed by the user, there is no need to return the external device to a normal state without the operation of the external device such as a gas meter. In addition, since it is provided with automatic inspection means that periodically determines the presence or absence of a failure location and notifies the failure from the notification means when the failure location is detected, the need for independent inspection of the alarm device can be eliminated. In other words, an independent inspection of the alarm device is performed by an alarm display or output of an alarm sound, etc., to confirm whether a failure has occurred, but in the first place, this inspection is regularly inspected by the alarm device itself. This eliminates the need for the user to do this. Therefore, the user does not operate to check the alarm alone, and the possibility that the user performs the specified operation carelessly can be further reduced. Therefore, the possibility that the user inadvertently performs the inspection operation can be reduced, and the convenience to the user can be further improved.

  ADVANTAGE OF THE INVENTION According to this invention, the alarm device which can aim at the convenience for a user further, and its control method can be provided.

It is a block diagram which shows the structure of the alarm system containing the alarm device which concerns on this embodiment. It is a flowchart which shows the control method of the gas fire alarm which concerns on this embodiment, Comprising: The process regarding inspection is shown. It is a 1st timing chart which shows the control method of the gas fire alarm which concerns on this embodiment. It is a 2nd timing chart which shows the control method of the gas fire alarm which concerns on this embodiment. It is a 3rd timing chart which shows the control method of the gas fire alarm which concerns on this embodiment. It is a timing chart which shows the control method of the gas fire alarm which concerns on the modification of this embodiment.

  Hereinafter, embodiments of an alarm device according to the present invention will be described. FIG. 1 is a block diagram illustrating a configuration of an alarm system including an alarm device according to the present embodiment. The alarm system 1 shown in FIG. 1 includes a gas fire alarm 10 and a plurality of fire alarms 20, and when a gas leak (abnormal state) is detected by the gas fire alarm 10, this is indicated. In addition to notifying, a voltage output is performed to close the shut-off valve to a gas meter (external device) 30 provided outside. Further, when a fire (abnormal state) is detected by any one of the gas fire alarm 10 and the plurality of fire alarms 20, the alarm system 1 notifies all the alarm devices 10 and 20 to that effect. It is the structure which alert | reports.

  Details will be described below. First, the gas fire alarm 10 includes a sensor unit 11, a control unit (control unit) 12, a notification unit (notification unit) 13, and an audio output circuit 14. The sensor unit 11 uses a gas supplied to a home or the like (for example, methane, which is a main component of city gas), carbon monoxide generated in a fire, or the like as a detection target gas, and controls a signal corresponding to the concentration of these gases. This is output to the unit 12. The sensor unit 11 also has a function of detecting smoke, and is configured to output a signal corresponding to the smoke density to the control unit 12.

  The control unit 12 controls the entire gas fire alarm device 10 and has a function of detecting the occurrence of an abnormal state in the monitoring area based on a signal from the sensor unit 11. When the control unit 12 determines that the monitoring area is in an abnormal state, the control unit 12 transmits a signal to that effect to the notification unit 13.

  The notification unit 13 notifies the fact when an abnormal state occurs in the monitoring area, and includes a display unit 13a and an audio output unit 13b. The display unit 13a is configured by, for example, a green or yellow LED (Light Emitting Diode), and notifies an abnormal state by lighting or blinking. The audio output unit 13b is configured by a speaker or a buzzer, and receives a signal from the control unit 12 via the audio output circuit 14, and notifies the abnormal state by an audio message or a buzzer sound.

  Further, the gas fire alarm 10 includes a voltage output circuit (voltage output means) 16 and an interlocking signal transmission / reception circuit 17. The voltage output circuit 16 outputs a voltage to the gas meter 30 that is an external device. Specifically, the voltage output circuit 16 outputs a low level voltage (first voltage) of, for example, 6V to the gas meter 30 at normal times, and a high level voltage (second voltage of 12V or 18V, for example) when detecting an abnormal state. Voltage). When the high-level voltage is input, the gas meter 30 closes the shut-off valve to prevent the abnormal state from deteriorating. When an abnormality such as a failure or disconnection of the gas fire alarm 10 itself occurs, the voltage output circuit 16 outputs a 0 V voltage (second voltage).

  The interlock signal transmission / reception circuit 17 transmits and receives a fire interlock signal when performing interlock inspection with the fire alarm 20. Specifically, when it is determined that the interlock inspection is performed, the control unit 12 causes the notification unit 13 to perform a notification operation and transmits a fire interlock signal from the interlock signal transmission / reception circuit 17 to the fire alarm device 20. Thereby, the fire alarm 20 performs a notification operation in the same manner as the gas fire alarm 10. Needless to say, the fire-linked signal is also output when a fire is actually detected by the gas fire alarm 10.

  As shown in FIG. 1, the gas fire alarm 10 includes an inspection switch 18 and a stop switch 19. Furthermore, the control unit 12 includes an inspection reception unit (inspection reception unit) 12a and a stop reception unit (stop reception unit) 12b.

  The inspection switch 18 and the stop switch 19 are switches that can be operated by a user or the like while being exposed to the outside of the gas fire alarm 10. The inspection receiving unit 12a receives an inspection operation based on the operation content of the inspection switch 18. The stop receiving unit 12b receives a stop operation of the inspection operation based on the operation content of the stop switch 19.

  Here, the inspection reception unit 12a according to the present embodiment receives an inspection operation when a prescribed operation is performed on the inspection switch 18, and the control unit 12 performs an inspection operation when the inspection operation is received. Execute. At this time, the control unit 12 performs at least one of an alarm sound and an alarm display, and outputs a high level voltage from the voltage output circuit 16 to the gas meter 30 with a predetermined time delay from the start of execution of the inspection operation ( Perform linked inspection operation). Thereby, the cutoff valve of the gas meter 30 is operated.

  The specified operation means that the check switch 18 is turned on for a specified time (for example, 3 seconds) or longer, the check switch 18 is turned on for a specified time (for example, 3 to 6 seconds), and during the specified time (for example, 3 to 6 seconds). Turn on the inspection switch 18 at the specified number of times (two or more times), turn on the inspection switch 18 at the specified timing (for example, turn on the inspection switch 18 when the power is turned on, turn on the inspection switch 18 within 5 seconds after the initial delay) And so on. These operations are such that when the user inadvertently touches the inspection switch 18, the inspection reception unit 12a does not accept the inspection operation.

  The gas fire alarm device 10 according to the present embodiment is configured as described above for the convenience of the user. That is, it is difficult for a person unaccustomed to the operation of the gas meter 30 such as a user to open the valve of the gas meter 30. For this reason, if a specified operation is mistakenly performed on the inspection switch 18 and a high level voltage is immediately output, the shutoff valve is closed and the valve opening operation must be performed. It takes a lot of time to open the valve, or the valve cannot be opened.

  However, the gas fire alarm device 10 according to the present embodiment outputs a high level voltage with a predetermined time delay from the start of execution of the inspection operation. For this reason, the user can turn off the gas fire alarm 10 before the gas meter 30 is operated by the high level voltage, for example. Thereby, the user can prevent the shut-off valve from being closed, and there is no need to open the shut-off valve.

  On the other hand, when the user wants to check the interlock with the gas meter 30, it can be said that the user can simply wait for a predetermined time without turning off the power of the gas fire alarm 10, and it is easy to check the interlock with the gas meter 30.

  In addition, since the inspection operation is accepted by performing a prescribed operation on the inspection switch 18, for example, even if the inspection switch 18 of the gas fire alarm 10 is accidentally touched, the prescribed operation is performed. Otherwise, a high level voltage is not output. For this reason, for example, when the user touches the inspection switch 18 for a short time, the shut-off valve is not closed, and the user is more convenient.

  Moreover, the stop reception part 12b which concerns on this embodiment receives stop operation which stops inspection operation | movement. For this reason, even if the user accidentally operates the inspection switch 18, by operating the stop switch 19, a stop operation is received by the stop receiving unit 12b and the inspection operation is stopped. Therefore, even if the gas fire alarm 10 is not turned off, it is possible to prevent the shutoff valve from closing by operating the stop switch 19.

  The stop acceptance unit 12b accepts a stop operation by simply operating (pressing) the stop switch 19 regardless of the operation time. However, the stop acceptance unit 12b is not limited to this. Specifically, a stop operation may be accepted when a long press operation is performed for 3 seconds or more), or a stop operation is accepted when the stop switch 19 is operated a predetermined multiple times within a specific time. It may be a configuration. Moreover, in the said embodiment, although the inspection switch 18 and the operation switch 19 are provided separately, not only this but the inspection switch 18 and the operation switch 19 may be comprised by the same switch.

  Furthermore, as shown in FIG. 1, in this embodiment, the control part 12 is provided with the automatic inspection part (automatic inspection means) 12c. The automatic inspection unit 12c periodically self-determines whether or not a failure has occurred in the sensor unit 11, the notification unit 13, the audio output circuit 14, the voltage output circuit 16, the interlocking signal output circuit 17, and the like. When the location is detected, the notification unit 13 notifies the failure. Specifically, the automatic inspection unit 12c performs nine failure detections including LED failure detection, speaker disconnection, audio circuit failure, audio IC failure, sensor failure, heater failure, power supply circuit failure, voltage failure, and fire-linked circuit failure. It is supposed to be. For example, the automatic inspection unit 12c actually energizes and outputs sound from the speaker 13b. At this time, the automatic inspection unit 12c checks the energized state and determines whether or not the speaker 13b is disconnected. Since these nine failure detections are well known, the description is omitted.

  As described above, the gas fire alarm device 10 according to the present embodiment periodically determines the presence or absence of a failure location, and when the failure location is detected, the notification means notifies the failure, so that the alarm device 10 is independently checked. It is possible to eliminate the need to perform (so-called independent inspection). That is, in the single inspection, an alarm display, an alarm sound, etc. are performed, and the user determines whether or not a failure has occurred by checking the display or sound. However, it is not necessary for the user to perform periodic inspection by himself / herself. Therefore, by providing the self-diagnosis function, it is possible to eliminate the single check, and the user does not operate to check the alarm device 10 alone. Accordingly, it is possible to further reduce the possibility that the user will perform the specified operation carelessly.

  Next, details of the fire alarm 20 will be described. The fire alarm 20 includes a sensor unit 21, a control unit 22, a notification unit 23 having a display unit 23a and a voice output unit 23b, a voice output unit 24, and an interlocking signal transmission / reception circuit 27. Since these configurations are the same as those of the gas fire alarm 10, the description thereof is omitted.

  The fire alarm 20 is driven by the battery 28. Furthermore, the fire alarm 20 includes an inspection circuit 25 and an inspection switch 29. When the inspection circuit 25 determines that the inspection switch 29 has been operated, the control unit 22 performs an independent inspection or an interlocked inspection. Will be implemented.

  In the above, the inspection operation in the fire alarm 20 may be the same as that in the gas fire alarm 10. For example, the fire alarm 20 may have an inspection reception unit 12a and a stop reception unit 12b. Further, when an inspection operation is accepted, the inspection operation may be stopped by operating the inspection switch 29 again. Furthermore, the fire alarm device 20 may include an automatic inspection unit 12c.

  Hereinafter, a control method of the gas fire alarm 10 according to the present embodiment will be described. FIG. 2 is a flowchart showing a control method of the gas fire alarm 10 according to the present embodiment, and shows processing relating to inspection. Although not shown in FIG. 2, the gas fire alarm 10 determines whether or not there is a failure location by the automatic inspection unit 12 c, and if a failure is confirmed, performs processing to notify that fact. Is done.

  First, as shown in FIG. 2, in this embodiment, the inspection receiving unit 12a of the control unit 12 determines whether or not a predetermined operation has been performed on the inspection switch 18 (S1). When it is determined that there is no specified operation (S1: NO), this process is repeated until it is determined that there is a specified operation.

  On the other hand, when it is determined that there is a prescribed operation (S1: YES), the inspection operation starts. That is, the control unit 12 turns on the LED that is the display unit 13a and outputs a sound from the speaker 13b (S2). Next, the stop receiving unit 12b determines whether or not the stop switch 19 has been operated (S3).

  When it is determined that the stop switch 19 has been operated (S3: YES), the control unit 12 turns off the LED as the display unit 13a and stops the sound output from the speaker 13b (S7). Then, the process shown in FIG.

  When it is determined that the stop switch 19 is not operated (S3: NO), the control unit 12 determines whether or not a predetermined time has elapsed from step S2 (S4). If it is determined that the predetermined time has not elapsed (S4: NO), the process proceeds to step S3.

  When it is determined that the predetermined time has elapsed (S4: YES), the control unit 12 outputs a high level voltage from the voltage output circuit 16 (S5). Thereby, the gas meter 30 will close a cutoff valve. Next, the control unit 12 determines whether or not the inspection operation is finished (S6). If it is determined that the inspection operation is not completed (S6: NO), the process proceeds to step S3.

  On the other hand, when it is determined that the inspection operation is finished (S6: YES), the control unit 12 turns off the LED as the display unit 13a and stops the sound output from the speaker 13b (S7). Further, the control unit 12 sets the output high level voltage to the low level (S7). Thereafter, the process shown in FIG. 2 ends.

  Next, a control method of the gas fire alarm device 10 according to the present embodiment will be described with reference to FIGS. FIG. 3 is a first timing chart showing the control method of the gas fire alarm 10 according to the present embodiment. In FIG. 3, it is assumed that the prescribed operation is a long press of 3 seconds or more. As shown in FIG. 3, it is assumed that the inspection switch 18 is operated at time t1. Then, it is assumed that a long press is performed for 3 seconds (specified time) and the time t2 is reached. In this case, the inspection receiving unit 12a receives an inspection operation, and the control unit 12 outputs an inspection display and an inspection sound from time t2.

  And the control part 12 complete | finishes the output of an inspection audio | voice at the time t3 in the example shown in FIG. Note that the audio output may be continued until time t8, or may end at an arbitrary time from time t3 to time t8.

  Next, at time t4 immediately before a predetermined time elapses from time t2 when the inspection operation is accepted, the control unit 12 outputs a sound “beep” from the speaker 13b. This sound indicates that a predetermined time has elapsed, and is a sound indicating that a high level voltage is output to the gas meter 30.

  At time t <b> 5, the control unit 12 outputs a high level voltage from the voltage output circuit 16. In addition, the control unit 12 according to the present embodiment outputs a high level voltage and outputs an interlocking signal from the interlocking signal transmitting / receiving circuit 17. When the other fire alarm 20 receives the interlock signal, it outputs an inspection display and an inspection sound from the notification unit 23. In the above description, the interlock signal is taken as an example, but it may be a non-voltage contact output.

  Next, the control unit 12 causes the speaker 13b to output a “beep” sound at time t6. This sound is a sound indicating that the inspection display by the LED (display unit 13a) is terminated. Then, at time t7, the control unit 12 performs a ringing cause display. The ringing cause display is a function for displaying the past latest or the alarm history for several times from the latest. By this display, the user or the like can know the past alarm history. Although the ringing cause display is performed in the present embodiment, the ringing cause display may not be performed, and the inspection display may be continued until time t8. Further, the inspection display may end at any time from time t2 to time t8.

  Then, at time t8, the control unit 12 causes the speaker 13b to output a sound “Peep”. This sound is a sound indicating the end of the inspection operation. Thereafter, the gas fire alarm device 10 shifts to a normal monitoring state.

  FIG. 4 is a second timing chart showing the control method of the gas fire alarm 10 according to the present embodiment. In FIG. 4, it is assumed that the prescribed operation is a long press of 3 seconds or more. First, the operation from time t1 to time t3 shown in FIG. 4 is the same as the operation shown in FIG.

  First, it is assumed that the stop switch 19 is operated at time t9 before a predetermined time has elapsed. In this case, the control unit 12 stops the inspection display at time t10. That is, the control unit 12 turns off the LED. Further, in the example shown in FIG. 4, since the time t9 is after the time 3, only the inspection display is stopped. However, when the time t9 is before the time t3, the control unit 12 not only displays the inspection display but also the inspection voice. Is also stopped.

  Thus, in this embodiment, since the high level voltage is not output immediately after the execution start time t2 of the inspection operation, the output of the high level voltage is prohibited by operating the stop switch 19 until the predetermined time has elapsed. This is convenient for the user. Note that the output of the high-level voltage can also be prohibited by turning off the gas fire alarm 10 at time t9 shown in FIG.

  FIG. 5 is a third timing chart showing the control method of the gas fire alarm 10 according to the present embodiment. In FIG. 5, it is assumed that the prescribed operation is a long press for 3 seconds or more. First, the operation from time t1 to time t5 shown in FIG. 5 is the same as the operation shown in FIG.

  If the stop switch 19 is operated at time t11 after a predetermined time has elapsed, the control unit 12 stops the inspection display at time t12. That is, the control unit 12 turns off the LED. At time t12, the high level voltage is output to the gas meter 30, and the interlocking signal is also output. For this reason, the control unit 12 also stops the output of the high level voltage and the output of the interlocking signal. That is, the control unit 12 outputs a low level voltage from the voltage output circuit 16, and the interlocking signal transmitting / receiving circuit 17 turns off the interlocking signal.

  As described above, the present embodiment is configured so that the output of the high level voltage can be stopped even after a predetermined time has elapsed. Here, generally, a signal converter is interposed between the voltage output circuit 16 and the gas meter 30. Most of these signal converters output a signal to close the shutoff valve to the gas meter 30 after a delay time after inputting a high level voltage. For this reason, even if the high level voltage is output, if the high level voltage output is stopped before the delay time elapses, the gas meter 30 does not close the shutoff valve, and does not give the user troublesome operations such as opening the valve. Can be. Therefore, the gas fire alarm device 10 according to the present embodiment can stop the output of the high level voltage by operating the stop switch 19 even after a predetermined time has elapsed.

  The signal converter not only transmits a signal to close the shutoff valve after the delay time has elapsed to the gas meter 30, but also is connected to a centralized monitoring panel, NCU, and a gas management center (one of external devices). There is also a case where a system for reporting to is configured. For this reason, the notification to the gas management center can be stopped by stopping the output of the high level voltage after the predetermined time has elapsed and before the delay time has elapsed.

  In addition to signal converters, outdoor buzzers and the like have a function of reporting an abnormality of an alarm device by inputting a high level voltage. For this reason, after confirming the notification from the outdoor buzzer, the output of the high level voltage is stopped immediately, so that the confirmation can be made in a short time, and the neighborhood is not disturbed.

  Thus, according to the gas fire alarm device 10 and its control method according to the present embodiment, when a prescribed operation is performed on the inspection switch 18 that is operably provided and an inspection operation is accepted, Since the high-level voltage is output to the gas meter 30, it is not necessary to return the shut-off valve of the gas meter 30 without the gas meter 30 being operated by making the contents that the user cannot perform carelessly. In addition, since the automatic inspection unit 12c that periodically determines the presence or absence of a failure location and notifies the failure from the notification means when the failure location is detected, the need for independent inspection of the gas fire alarm 10 is eliminated. be able to. That is, the independent inspection of the gas fire alarm 10 is performed by an alarm display, an alarm sound output, or the like to check whether a failure has occurred. In the first place, the gas fire alarm 10 is periodically inspected. It is not necessary for the user to perform the inspection by self-inspection. Therefore, the user does not operate to check the gas fire alarm 10 alone, and the possibility that the user performs the specified operation carelessly can be further reduced. Therefore, the possibility that the user inadvertently performs the inspection operation can be reduced, and the convenience to the user can be further improved.

  In addition, since the high-level voltage is output to the gas meter 30 with a predetermined time delay from the start of execution of the inspection operation, even if the user performs an inspection operation accidentally, the high level voltage is immediately output from the start of execution of the inspection operation. The level voltage is not output. For example, the gas fire alarm 10 can be turned off before the gas meter 30 is operated by the high level voltage. This eliminates the need for the user to return the gas meter 30 to a normal state, such as opening a shut-off valve. Therefore, further convenience for the user can be achieved.

  Moreover, since the stop reception part 12b which receives the stop operation which stops the operation | movement which outputs the high level voltage with respect to the gas meter 30 is further provided, even if a user performs inspection operation accidentally, for example, the gas meter 30 is high level voltage. The valve closing operation of the gas meter 30 can be prohibited by performing a stop operation before the operation is performed. Therefore, further convenience for the user can be achieved.

  As described above, the present invention has been described based on the embodiment, but the present invention is not limited to the above embodiment, and may be modified without departing from the gist of the present invention.

  For example, although the operation illustrated in FIG. 4 has been described in the present embodiment, the operation illustrated in FIG. 6 may be performed. FIG. 6 is a timing chart showing a control method of the gas fire alarm 10 according to a modification of the present embodiment.

  First, the operations from time t1 to time t3 and time t9 shown in FIG. 6 are the same as the operations shown in FIG. In the modification, when the stop switch 19 is operated at time t9, the control unit 12 thereafter does not stop the output of the high level voltage and the output of the interlocking signal. This is because even in such a modification, for example, the shutoff valve can be prevented from closing by turning off the power of the gas fire alarm 10 before the gas meter 30 is operated by the high level voltage.

  Moreover, although the gas fire alarm 10 was mentioned as an example of an alarm device in this embodiment, it is not restricted to this, A gas alarm device may be sufficient and a fire alarm device may be sufficient. Furthermore, it may be a security alarm device that detects intrusion of a person or the like.

  Moreover, although the gas meter 30 was demonstrated to the example in the said embodiment as an external apparatus, an external apparatus is not restricted to a gas meter in particular, For example, the fire alarm device 20 and a gas management center may be sufficient, and it is another apparatus. Also good.

  In the present embodiment, the gas fire alarm 10 is driven by a commercial power source, but may be a battery-driven type. Similarly, the fire alarm 20 is driven by the battery 28, but may be driven by a commercial power source.

  In addition, in the present embodiment, when the stop operation is accepted, all the inspection operations are stopped. However, the present invention is not limited to this, and only the output of the high level voltage may be stopped.

  In addition, various voices shown in the above embodiment can be realized in a variety of ways in addition to “beep” and “beep”. Furthermore, audio output may be performed at a time (for example, time t1) when no audio output is shown in the above embodiment.

DESCRIPTION OF SYMBOLS 1 Alarm system 10 Gas fire alarm 11 Sensor part 12 Control part (control means)
12a Inspection reception part (inspection reception means)
12b Stop accepting part (stop accepting means)
12c Automatic inspection section (automatic inspection means)
13 Notification part (notification means)
13a Display unit 13b Audio output unit 14 Audio output circuit 16 Voltage output circuit (voltage output means)
DESCRIPTION OF SYMBOLS 17 Interlocking signal transmission / reception circuit 20 Fire alarm 21 Sensor part 22 Control part 23 Notification part 23a Display part 23b Audio | voice output part 24 Audio | voice output circuit 25 Inspection circuit 27 Interlocking signal transmission / reception circuit 28 Battery 29 Inspection switch 30 Gas meter (external device)

Claims (4)

When the occurrence of an abnormal state in the monitoring area is detected based on a signal from the sensor unit, a notification means for notifying the fact, and when the abnormal state in the monitoring area is not detected, the first voltage is output to an external device. , A voltage output means for outputting a second voltage different from the first voltage to the external device when an abnormal state is detected in the monitoring area, and periodically determining the presence or absence of a failure location and detecting the failure location An automatic inspection means for informing a failure from the notification means, and an alarm device comprising:
An inspection accepting means for accepting an inspection operation when a prescribed operation is performed on the inspection switch provided to be operable;
When an inspection operation is accepted by the inspection acceptance means, at least one of an alarm sound and an alarm display is output from the notification means, and a control means for outputting a second voltage from the voltage output means to the external device;
An alarm device comprising: When the inspection operation is accepted by the inspection accepting means, the control means causes at least one of the inspection operation of an alarm sound and an alarm display to be performed, and is delayed for a predetermined time from the start of execution of the inspection operation. The alarm device according to claim 1, wherein the second voltage is output from the output means to the external device. 3. The apparatus according to claim 1, further comprising: a stop receiving unit that receives a stop operation for stopping the operation of outputting the second voltage from the voltage output unit to the external device. 4. Alarm. When the occurrence of an abnormal state in the monitoring area is detected based on a signal from the sensor unit, a notification means for notifying the fact, and when the abnormal state in the monitoring area is not detected, the first voltage is output to an external device. , A voltage output means for outputting a second voltage different from the first voltage to the external device when an abnormal state is detected in the monitoring area, and periodically determining the presence or absence of a failure location and detecting the failure location An automatic inspection means for notifying a failure from the notification means, and a control method for an alarm device comprising:
An inspection acceptance process for accepting an inspection operation when a prescribed operation is performed on an inspection switch provided to be operable;
When an inspection operation is accepted in the inspection acceptance step, a control step of outputting at least one of an alarm sound and an alarm display from the notification unit and outputting a second voltage from the voltage output unit to the external device;
A control method for an alarm device comprising:

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