JP2017224332A - Automatic abnormality alarm equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide automatic fire alarm equipment enabling disaster prevention center personnel to confirm the situation of a site with minimum power consumption even if a communication infrastructure does not function due to blackout.SOLUTION: Fire sensors are provided with a sound collection unit for collecting sound around the fire sensors 20-1, 20-2 and 20-3 when blackout and fire occurs, and a fire receiver 10 is provided with a loudspeaker unit for outputting an acoustic signal from the sound collection unit as sound; thereby disaster prevention center personnel can hear that sound. The fire sensors are provided with a loudspeaker unit for outputting a voice signal from the fire receiver to places around the fire sensors when blackout and fire occurs.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a technology of an automatic fire alarm system that enables disaster prevention center personnel to check the situation at the site even when a power failure occurs when an abnormality occurs.

  An automatic fire alarm facility (hereinafter referred to as “self-fire alarm facility”) is installed in a building that is a fire prevention object as an automatic alarm facility that automatically detects an abnormality such as a fire and notifies an alarm. This automatic fire alarm system is equipped with a standby power source composed of a secondary battery as a power source for maintaining the function for a predetermined time even if a power failure occurs. The Japanese technical standard that defines the reserve power capacity in the event of a power failure stipulates that at least a monitoring state must be maintained for 60 minutes and then an alarm state due to a fire must be maintained for at least 10 minutes during a power failure. .

  On the other hand, in the case of fire prevention objects, a self-defense fire brigade is organized as a self-defense organization in preparation for the occurrence of an abnormality. Conduct evacuation guidance, report to the local fire department, etc. according to the fire fighting plan. For example, members of the self-defense fire brigade must respond to the initial response such as on-site confirmation and initial fire extinguishing with a fire extinguisher or an indoor fire hydrant while contacting disaster prevention center personnel.

  However, if an abnormality occurs during a power outage, local calls such as extension telephones and communication infrastructure such as mobile phones and PHS will not function, and members of the self-defense fire brigade that have rushed to the site of the abnormality may not be able to contact the disaster prevention center. There is. In such a situation, the disaster prevention center personnel cannot grasp the situation at the site, and even if a member of the self-defense fire brigade can rush to the site where the abnormality occurred, the disaster prevention center may be notified of the situation at the site. Can not.

  Therefore, it is considered to use a self-reporting facility equipped with a standby power supply to maintain the function for a predetermined time even if a power failure occurs, so that the disaster prevention center can acquire the on-site audio even during a power failure. It is done.

  For example, Patent Document 1 discloses an invention relating to a fire detector having a microphone for inputting sound around the fire detector, although the action and effect at the time of a power failure are not described. The sound input to the microphone of the fire detector is sent to the fire receiver of the disaster prevention center and output from the speaker. Based on this output, it is determined whether the disaster prevention personnel of the disaster prevention center are fire or non-fire.

  However, in the invention described in Patent Document 1, power is consumed by driving the configuration for acquiring sound around the fire detector as described above. For this reason, the standby power supply provided in the fire receiver can function the self-reporting equipment for a predetermined time in the event of a power failure, but the time that the self-reporting equipment can maintain its function is reduced regardless of whether there is a fire or not. End up. In both the monitoring state and the alarm state, it is required to provide a large-capacity standby power supply that can cover the power consumed by the above-described configuration for acquiring sound around the fire detector.

JP 2002-074536 A

  As described above, in the prior art described in Patent Document 1, the configuration for acquiring the sound around the fire detector consumes power. Cannot be maintained for a predetermined time, and the system is down due to power shortage in a time that is less than the predetermined time during which the function can be maintained.

  Therefore, the inventors of the present invention diligently studied and found that it is sufficient to operate the above configuration only when a power failure occurs and an abnormality such as a fire occurs. The present invention has been made on the basis of the above knowledge, and even when the communication infrastructure does not function due to a power outage, an automatic fire alarm facility that enables disaster prevention center personnel to check the situation at the site with minimal power consumption. The purpose is to obtain.

(1) The automatic fire alarm system according to the present invention is arranged in a building and sends out a fire detection signal when a fire is detected, and fire is notified based on the fire detection signal from the fire sensor. In an automatic fire alarm system comprising a fire receiver, when the fire receiver receives an acoustic signal from the fire detector, a power failure detection unit that detects a power failure, a standby power supply that supplies power during a power failure, and the fire detector A sound output unit for outputting the sound signal as sound, and a command for backup mode to the fire detector when the power failure detection unit detects a power failure and determines a fire based on the fire detection signal. A control unit, and the fire detector receives a surrounding sound as the acoustic signal, and when receiving the backup mode command from the fire receiver, Energized Having a control unit for controlling so as to send the sound signal to the fire receiver, characterized by.

(2) Further, in the automatic fire alarm system according to the present invention, in (1), the fire identifying means for analyzing the acoustic signal acquired and transmitted by the sound collecting unit and recognizing a voice that needs to be rescued is provided. It is provided in a receiver.

(3) Further, in the automatic fire alarm system according to the present invention, in (1) and (2), the fire detector is energized when receiving the backup mode command, and receives an audio signal from the fire receiver. And a loudspeaker that outputs the audio signal as a voice when it is received.

(4) Moreover, in (1)-(3), the automatic fire alarm equipment according to the present invention relays communication by interposing between the fire receiver and the fire detector, The fire detector includes a battery power source, and a transmitter / receiver that performs wireless communication with the repeater to communicate with the fire receiver. It is a sensor.

(5) In addition, the automatic fire alarm system according to the present invention is connected to the fire receiver in (1) to (4), and when the backup mode command is received, It has a plurality of repeaters to relay.

(6) In addition, the automatic fire alarm system according to the present invention is the repeater according to (4) and (5), which has a backup power supply and is driven by the backup power supply when the backup mode command is received. It is characterized by providing.

  According to the configuration of the above (1), the automatic fire alarm facility according to the present invention can hear the sound around the fire detector at the disaster prevention center at the time of a fire even if the communication infrastructure does not function due to a power failure. You can know the situation and the presence of a rescuer who asks for help.

  Moreover, according to the configuration of the above (2), the automatic fire alarm facility according to the present invention can automatically detect the presence of a rescuer.

  Moreover, according to the structure of said (3), the automatic fire alarm equipment which concerns on this invention can communicate with the spot.

  In the automatic fire alarm system according to the present invention, according to the configuration of (4) above, the fire detector does not break because the signal line of the fire detector is not broken due to an earthquake or the like.

  Moreover, according to the structure of said (5), the automatic fire alarm equipment which concerns on this invention enables communication of a radio | wireless communication apparatus in a building at the time of a fire, even if it becomes a power failure and a communication infrastructure does not function.

  Moreover, according to the configuration of the above (6), the automatic fire alarm system according to the present invention is configured such that even if a power failure occurs, the repeater is driven by its own standby power source in the event of a fire. Does not consume.

2 is a block diagram showing a configuration of a fire receiver 10. FIG. 2 is a block diagram showing a configuration of a fire detector 20. FIG. 2 is a block diagram showing a configuration of a fire detector 21. FIG. 2 is a block diagram showing a configuration of a repeater 30. FIG. 3 is a block diagram showing a configuration of a repeater 31. FIG. It is a figure which shows the whole structure of the self-reporting equipment in an Example. It is a figure which shows the whole structure of the self-report apparatus in a modification. It is a figure which shows the whole structure of the self-report apparatus in a modification. It is a figure which shows the whole structure of the self-report apparatus in a modification. It is a figure which shows the whole structure of the self-report apparatus in a modification. It is an operation | movement flowchart of the sound transmission in the self-reporting equipment which concerns on this invention. It is an operation | movement flowchart of the radio equipment backup in the self-reporting equipment which concerns on this invention.

1. Embodiment 1-1. Configuration of the self-reporting facility First, the configuration of the self-reporting facility according to the present embodiment will be described with reference to FIGS.

  The self-reporting equipment of this embodiment has a plurality of fire detectors 20 that are arranged in a building that is a fire prevention object and that send out a fire detection signal when a fire is detected. For example, fire detectors 20-1 to 20-3 are provided on the floors FL 1 to 3 in FIG. Moreover, when the fire detection signal from the fire detector 20 is received, it has the fire receiver 10 which notifies a fire based on this fire detection signal. A signal line L for communicating with the fire detector 20 is connected to the fire receiver 10 (see FIG. 6).

  The fire receiver 10 has a power supply unit 11 that supplies power to the self-reporting equipment including the self-device. The power supply unit 11 includes a power failure detection unit 13 that detects a power failure of a commercial power source dedicated to the self-reporting equipment, a standby power source 12 that includes a secondary battery that supplies power in the event of a power failure, and a power supply device (not shown) that outputs power, for example And a stabilized power supply device. The power supply unit 11 uses a dedicated commercial power source as a power source during normal times and charges a standby power source 12 composed of a secondary battery, and uses the standby power source 12 as a power source during a power failure. Moreover, when the power failure detection part 13 detects a power failure, while switching the power source of the power supply part 11 to the standby power supply 12, it sends out a power failure signal to the control part 14 mentioned later (refer FIG. 1).

  In addition, the fire receiver 10 includes a communication unit 15 connected to the signal line L in order to communicate with the fire detector 20. In addition, an operation unit 18 for performing manual operation, a fire representative light that is turned on in the event of a fire, a district display unit that displays a fire area, an AC power source lamp that indicates that a commercial power source is operating, and a display that displays the operation status Part 19. Moreover, it has the sound output part 16 which outputs the sound around the fire detector 20 mentioned later.

  The fire detector 20 has a known detection unit 27 for detecting a fire by detecting a physical phenomenon caused by a fire, for example, a temperature above a predetermined value, a temperature rise rate above a predetermined value, a smoke concentration above a predetermined value, and the like. When a fire is detected, the fact is sent to the control unit 24, and the control unit 24, which has determined that a fire has been detected, sends a fire detection signal to the fire receiver 10 via the communication unit 25 and the signal line L. Send it out.

  In addition, the fire detector 20 includes a sound collection unit 22 that obtains sound around the fire detector 20 as an acoustic signal and transmits the acoustic signal via the communication unit 25 and the signal line L. The sound collecting unit 22 is not energized during normal times and does not consume power. And it controls by the control part 24 so that it may energize when receiving the backup mode instruct | indicated when the fire receiver 10 judges that it is a fire at the time of a power failure.

  Next, the operation of the self-reporting facility according to the present embodiment will be described based on FIGS. Note that the operation as a self-reporting facility is a well-known matter and will be omitted.

  The power supply unit 11 of the fire receiver 10 supplies power to the fire detector 20 through the fire receiver and the signal line L using a dedicated commercial power source as a power source in normal times. When the power failure detection unit 13 detects a power failure (S101), the power source is switched to the standby power source 12, and the power source unit 11 supplies power to the fire detector 20 via the fire receiver 10 and the signal line L.

  The fire receiver 10 detects that the power failure detection unit 13 detects a power failure (Yes in S101) and determines that the fire receiver 10 is a fire based on the fire detection signal from the fire detector 20 (Yes in S102). Then, the control unit 14 of the fire receiver 10 commands the backup mode to the fire detector 20 via the communication unit 15, and when receiving the backup mode command, the fire detector 20 energizes the sound collection unit 22. (S103), the sound around the fire detector 20 is acquired as an acoustic signal, and the control unit 24 of the fire detector 20 controls to send this acoustic signal to the fire receiver 10 via the communication unit 25. (S104). And when the acoustic signal from the fire detector 20 is received, the fire receiver 10 outputs this acoustic signal as sound from the sound output unit 16.

  At this time, the disaster prevention center personnel 2 can hear the sound around the fire detector 20, for example, a voice requesting help from the resident 1, so that the situation at the site can be known and the presence of the rescuer is required. It can also be recognized.

  After that, when the power failure detection unit 13 of the fire receiver 10 detects recovery from power failure (Yes in S105), or a fire recovery operation is performed in the fire receiver 10 due to non-fire or fire extinguishing. When (Yes in S106), the control unit 24 of the fire detector 20 stops energizing the sound collecting unit 22 and returns to the normal state.

  As described above, the self-reporting equipment according to the present embodiment allows the sound around the fire detector 20 to be transmitted through the fire receiver 10 at the disaster prevention center in the event of a fire even when the communication infrastructure is down due to a power failure. The disaster prevention center staff 2 can listen to the situation on the site.

2. Modification The above is the description of the embodiment, but the contents of this embodiment can be modified as follows. Further, the following modifications may be combined.

2-1. Modification 1
In the above-described embodiment, the fire receiver 10 includes the voice input unit 17 (see FIG. 1), the fire detector 20 includes the loudspeaker unit 23 (see FIG. 2), and the fire detector 20 operates in the backup mode. When the instruction is received, the loudspeaker 23 is energized in the same manner as the sound collector 22, and the voice input to the voice input unit 17 of the fire receiver 10 is sent to the fire detector 20 as a voice signal. When the sound signal from 10 is received by the fire detector 20, the sound signal may be output as a sound from the loudspeaker 23 (see FIG. 11).

  In this way, even if the communication infrastructure is down due to a power outage, the sound of the disaster prevention center personnel 2 can be heard around the fire detector 20 in the event of a fire. Can communicate. Further, in the event of a fire, the disaster prevention center personnel 2 can hear the sound around the fire detector 20 at the disaster prevention center via the fire receiver 10, so communication with the site can also be performed (FIGS. 6 and 7). reference).

2-2. Modification 2
In the above-described embodiment, a relay 30 may be provided that relays communication between the fire receiver 10 and the fire detector 20 and performs wireless communication with the fire detector 20. The repeater 30 includes a communication unit 36 for communicating with the fire receiver 10 via the signal line L, a transmission / reception unit 37 and an antenna 38 for wireless communication with the fire detector 21, and a control for controlling them. Part 35. At this time, a wireless fire detector 21 having a battery 28 as a power source, a transmitter / receiver 26 that performs wireless communication with the repeater 30 in order to communicate with the fire receiver 10, and an antenna 29 is provided as a fire detector. 20 (see FIGS. 3, 4, 8, and 9).

  By doing in this way, like the first modification, even when the communication infrastructure is down due to a power failure, the sound of the disaster prevention center personnel 2 can be amplified around the fire detector 20 in the event of a fire. It is possible to communicate appropriate instructions. As in the first modification, the disaster prevention center personnel 2 can hear the sound around the fire detector 20 at the disaster prevention center via the fire receiver 10 in the event of a fire. (See FIGS. 8 and 9).

  And unlike the first modification, the fire detector 21 is connected to the self-reporting equipment by wireless communication, so that the signal line of the fire detector is not disconnected by an earthquake or the like, and the fire is caused by the disconnection of the signal line. The sensor does not stop functioning.

2-3. Modification 3
In the embodiment described above, a plurality of wireless communication devices connected to the fire receiver 10 and relaying radio waves of wireless communication devices carried by a member 3 such as a self-defense fire brigade or public fire brigade when receiving the backup mode command. A repeater 31 may be provided. That is, the repeater 31 is energized when the power failure detection unit 13 of the fire receiver 10 detects a power failure (Yes in S201) and when the fire receiver 10 determines that there is a fire (Yes in S202) (S203). Even if the communication infrastructure of the wireless facility is down due to a power failure, this is backed up to enable relay communication (S204). The repeater 31 controls the communication unit 36 for communicating with the fire receiver 10 via the signal line L, the transmission / reception unit 37 and the antenna 38 for wireless communication with the wireless communication device, and controls a plurality of relays. And a control unit 39 that controls to relay the communication of the wireless communication device via the device 31 (see FIGS. 5, 10, and 12).

  Thereafter, when the power failure detection unit 13 of the fire receiver 10 detects recovery from power failure (Yes in S205), or a fire recovery operation is performed in the fire receiver 10 due to non-fire or fire extinguishing. When (Yes in S206), the control unit 39 of the repeater 31 stops energizing the repeater 31, and returns to the normal state (see FIG. 12).

  By doing this, even if a power outage causes a system failure of the radio equipment (parent station) as a communication infrastructure of a radio communication device carried by a member of the self-defense fire brigade or public fire brigade, etc. In the event of a fire, the radio equipment (master station) can be backed up.

2-4. Modification 4
In the modified examples 2 and 3 described above, the repeater 30 or the repeater 31 is supplied with power from the fire receiver 10, but the repeater 30 or the repeater 31 has the power supply unit 32 that drives the own device. It may be. The power supply unit 32 includes a power failure detection unit 34 that detects a power failure of a commercial power source dedicated to the self-reporting equipment, a standby power source 33 that includes a secondary battery that supplies power in the event of a power failure, and a power source (not shown) that outputs power. A device, for example a stabilized power supply. The power supply unit 32 uses a dedicated commercial power source as a power source during normal times and charges the standby power source 33, and uses the standby power source 33 as a power source during a power failure. Moreover, the power failure detection part 34 will switch the power source of the power supply part 32 to the backup power source 33, if a power failure is detected (refer FIG. 5).

  When the power failure detection unit 34 detects a power failure and receives a signal indicating that a fire has occurred from the fire receiver 10 or the backup mode command, the power failure detection unit 34 operates as follows. That is, in the case of the repeater 30 according to the second modification, the repeater 30 instructs the fire detector 20 or 21 to perform the backup mode. Moreover, in the case of the repeater 31 in the modification 3, it energizes the repeater 31 and backs up the said radio equipment (master station).

  By doing in this way, the repeaters 30 and 31 do not consume the power of the standby power source of the fire receiver 10 at the time of a power failure, and the standby power source that is the power source at the time of the power failure is replaced with the fire receiver 10 and the relay 30. 31 can be distributed and arranged. As a result, the standby power supply 12 of the fire receiver 10 can be reduced in size, or the fire receiver 10 and the repeaters 30 and 31 can be provided with a large capacity backup power supply to extend the operable time during a power failure.

2-5. Modification 5
In the above-described embodiment, the fire receiver 10 is a voice identification unit that analyzes the acoustic signals acquired by the sound collection units 22 of the detectors 20 and 21 and recognizes voices that require rescue, such as screams, screams, and words for help. The control unit 14 may be provided.

  By doing so, it is possible to detect the presence of a person in need of rescue, such as being physically disabled, unable to move because of injury, or being left without being evacuated. If a rescuer is detected in this way, the sound output unit 16 may not necessarily be provided if the display unit 19 and the alarm sound output means (not shown) of the fire receiver 10 are automatically alerted.

DESCRIPTION OF SYMBOLS 1 ... Resident person, 2 ... Disaster prevention center staff, 3 ... Member, 4 ... Wireless communication apparatus, 10 ... Fire receiver, 11, 32 ... Power supply part, 12, 33 ... Standby power supply, 13, 34 ... Power failure detection part, 14, 24, 35, 39 ... control unit, 15, 25, 36 ... communication unit, 16 ... sound output unit, 17 ... voice input unit, 18 ... operation unit, 19 ... display unit, 20, 21 ... fire detector, 22 ... Sound collecting unit, 23 ... Loudspeaker unit, 26, 37 ... Transmitting / receiving unit, 27 ... Sensing unit, 28 ... Battery, 29, 38 ... Antenna, 30, 31 ... Repeater, L ... Signal line, FL1-3 ... 1 ~ 3rd floor.

Claims (1)

An abnormality detection means for transmitting an abnormality detection signal when an abnormality is arranged in the building,
In an automatic abnormality notification facility comprising abnormality reception means for notifying abnormality based on an abnormality detection signal from the abnormality detection means,
A power failure detection means for detecting a power failure;
A standby power supply for supplying power in the event of a power failure;
A control means for instructing a backup mode when the power failure detection means detects a power failure and the abnormality receiving means determines an abnormality based on the abnormality detection signal;
A plurality of repeaters having transmission / reception means and antennas for wireless communication;
With
The automatic anomaly notification facility characterized in that when the backup mode command is received, the repeater relays communication of a plurality of wireless communication means by being energized with power supplied from the standby power supply.

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